Esempio n. 1
0
static int OGRWFSCheckSRIDArg( swq_expr_node *op, int iSubArgIndex ) 
{
    if( op->papoSubExpr[iSubArgIndex]->field_type == SWQ_INTEGER )
    {
        OGRSpatialReference oSRS;
        if( oSRS.importFromEPSGA((int)op->papoSubExpr[iSubArgIndex]->int_value) != OGRERR_NONE )
        {
            CPLError(CE_Failure, CPLE_AppDefined, "Wrong value for argument %d of %s",
                     iSubArgIndex + 1, op->string_value);
            return FALSE;
        }
    }
    else if( op->papoSubExpr[iSubArgIndex]->field_type == SWQ_STRING )
    {
        OGRSpatialReference oSRS;
        if( oSRS.SetFromUserInput(op->papoSubExpr[iSubArgIndex]->string_value) != OGRERR_NONE )
        {
            CPLError(CE_Failure, CPLE_AppDefined, "Wrong value for argument %d of %s",
                     iSubArgIndex + 1, op->string_value);
            return FALSE;
        }
    }
    else
    {
        CPLError(CE_Failure, CPLE_AppDefined, "Wrong field type for argument %d of %s",
                 iSubArgIndex + 1, op->string_value);
        return FALSE;
    }
    return TRUE;
}
Esempio n. 2
0
static CPLString ProjToWKT(const CPLString &proj) {
    char* wkt = NULL;
    OGRSpatialReference sr;
    CPLString srs;

    if (sr.SetFromUserInput(proj.c_str()) != OGRERR_NONE) return srs;
    sr.exportToWkt(&wkt);
    srs = wkt;
    OGRFree(wkt);
    return srs;
}
Esempio n. 3
0
CPLString ProjToWKT(const CPLString &proj) {
    char* wkt = nullptr;
    OGRSpatialReference sr;
    CPLString srs;

    /* We could of course recognize OSGEO:41001 to SetFromUserInput(), but this hackish SRS */
    /* is almost only used in the context of WMS */
    if (strcmp(proj.c_str(),"OSGEO:41001") == 0)
    {
        if (sr.SetFromUserInput("EPSG:3857") != OGRERR_NONE) return srs;
    }
    else if (EQUAL(proj.c_str(),"EPSG:NONE"))
    {
        return srs;
    }
    else
    {
        if (sr.SetFromUserInput(proj.c_str()) != OGRERR_NONE) return srs;
    }
    sr.exportToWkt(&wkt);
    srs = wkt;
    CPLFree(wkt);
    return srs;
}
    bool hasSourceSRS(const std::string& sourceURN) {

        if (m_transformation == nullptr) {
            return false;
        }

        OGRSpatialReference refSys;
        OGRErr err = refSys.SetFromUserInput(sourceURN.c_str());

        if (err != OGRERR_NONE) {
            return false;
        }

        return refSys.IsSame(m_transformation->GetSourceCS());

    }
    void setSourceSRS(const std::string& sourceURN) {

        if (m_transformation != nullptr) {
            OCTDestroyCoordinateTransformation(m_transformation);
            m_transformation = nullptr;
        }

        OGRSpatialReference sourceSRS;
        OGRErr err = sourceSRS.SetFromUserInput(sourceURN.c_str());

        if (err != OGRERR_NONE) {
            CITYGML_LOG_ERROR(m_logger, "Could not create OGRSpatialReference for source SRS " << sourceURN << ". OGR error code: " << err << ".");
            return;
        }

        m_transformation = OGRCreateCoordinateTransformation(&sourceSRS, &m_destSRS);
        if (m_transformation == nullptr) {
            CITYGML_LOG_ERROR(m_logger, "Could not create transformation from source SRS " << sourceURN << " to destination SRS " << m_destSRSURN << ".");
            return;
        }

        m_sourceURN = sourceURN;
    }
Esempio n. 6
0
CPLErr VRTDataset::XMLInit( CPLXMLNode *psTree, const char *pszVRTPath )

{
    if( pszVRTPath != NULL )
        this->pszVRTPath = CPLStrdup(pszVRTPath);

/* -------------------------------------------------------------------- */
/*      Check for an SRS node.                                          */
/* -------------------------------------------------------------------- */
    if( strlen(CPLGetXMLValue(psTree, "SRS", "")) > 0 )
    {
        OGRSpatialReference oSRS;

        CPLFree( pszProjection );
        pszProjection = NULL;

        if( oSRS.SetFromUserInput( CPLGetXMLValue(psTree, "SRS", "") )
            == OGRERR_NONE )
            oSRS.exportToWkt( &pszProjection );
    }

/* -------------------------------------------------------------------- */
/*      Check for a GeoTransform node.                                  */
/* -------------------------------------------------------------------- */
    if( strlen(CPLGetXMLValue(psTree, "GeoTransform", "")) > 0 )
    {
        const char *pszGT = CPLGetXMLValue(psTree, "GeoTransform", "");
        char	**papszTokens;

        papszTokens = CSLTokenizeStringComplex( pszGT, ",", FALSE, FALSE );
        if( CSLCount(papszTokens) != 6 )
        {
            CPLError( CE_Warning, CPLE_AppDefined,
                      "GeoTransform node does not have expected six values.");
        }
        else
        {
            for( int iTA = 0; iTA < 6; iTA++ )
                adfGeoTransform[iTA] = atof(papszTokens[iTA]);
            bGeoTransformSet = TRUE;
        }

        CSLDestroy( papszTokens );
    }

/* -------------------------------------------------------------------- */
/*      Check for GCPs.                                                 */
/* -------------------------------------------------------------------- */
    CPLXMLNode *psGCPList = CPLGetXMLNode( psTree, "GCPList" );

    if( psGCPList != NULL )
    {
        CPLXMLNode *psXMLGCP;
        OGRSpatialReference oSRS;
        const char *pszRawProj = CPLGetXMLValue(psGCPList, "Projection", "");

        CPLFree( pszGCPProjection );

        if( strlen(pszRawProj) > 0 
            && oSRS.SetFromUserInput( pszRawProj ) == OGRERR_NONE )
            oSRS.exportToWkt( &pszGCPProjection );
        else
            pszGCPProjection = CPLStrdup("");

        // Count GCPs.
        int  nGCPMax = 0;
         
        for( psXMLGCP = psGCPList->psChild; psXMLGCP != NULL; 
             psXMLGCP = psXMLGCP->psNext )
            nGCPMax++;
         
        pasGCPList = (GDAL_GCP *) CPLCalloc(sizeof(GDAL_GCP),nGCPMax);
         
        for( psXMLGCP = psGCPList->psChild; psXMLGCP != NULL; 
             psXMLGCP = psXMLGCP->psNext )
        {
            GDAL_GCP *psGCP = pasGCPList + nGCPCount;

            if( !EQUAL(psXMLGCP->pszValue,"GCP") || 
                psXMLGCP->eType != CXT_Element )
                continue;
             
            GDALInitGCPs( 1, psGCP );
             
            CPLFree( psGCP->pszId );
            psGCP->pszId = CPLStrdup(CPLGetXMLValue(psXMLGCP,"Id",""));
             
            CPLFree( psGCP->pszInfo );
            psGCP->pszInfo = CPLStrdup(CPLGetXMLValue(psXMLGCP,"Info",""));
             
            psGCP->dfGCPPixel = atof(CPLGetXMLValue(psXMLGCP,"Pixel","0.0"));
            psGCP->dfGCPLine = atof(CPLGetXMLValue(psXMLGCP,"Line","0.0"));
             
            psGCP->dfGCPX = atof(CPLGetXMLValue(psXMLGCP,"X","0.0"));
            psGCP->dfGCPY = atof(CPLGetXMLValue(psXMLGCP,"Y","0.0"));
            psGCP->dfGCPZ = atof(CPLGetXMLValue(psXMLGCP,"Z","0.0"));

            nGCPCount++;
        }
    }
     
/* -------------------------------------------------------------------- */
/*      Apply any dataset level metadata.                               */
/* -------------------------------------------------------------------- */
    oMDMD.XMLInit( psTree, TRUE );

/* -------------------------------------------------------------------- */
/*      Create dataset mask band.                                       */
/* -------------------------------------------------------------------- */
    CPLXMLNode *psChild;

    /* Parse dataset mask band first */
    CPLXMLNode* psMaskBandNode = CPLGetXMLNode(psTree, "MaskBand");
    if (psMaskBandNode)
        psChild = psMaskBandNode->psChild;
    else
        psChild = NULL;
    for( ; psChild != NULL; psChild=psChild->psNext )
    {
        if( psChild->eType == CXT_Element
            && EQUAL(psChild->pszValue,"VRTRasterBand") )
        {
            VRTRasterBand  *poBand = NULL;
            const char *pszSubclass = CPLGetXMLValue( psChild, "subclass",
                                                      "VRTSourcedRasterBand" );

            if( EQUAL(pszSubclass,"VRTSourcedRasterBand") )
                poBand = new VRTSourcedRasterBand( this, 0 );
            else if( EQUAL(pszSubclass, "VRTDerivedRasterBand") )
                poBand = new VRTDerivedRasterBand( this, 0 );
            else if( EQUAL(pszSubclass, "VRTRawRasterBand") )
                poBand = new VRTRawRasterBand( this, 0 );
            else if( EQUAL(pszSubclass, "VRTWarpedRasterBand") )
                poBand = new VRTWarpedRasterBand( this, 0 );
            else
                CPLError( CE_Failure, CPLE_AppDefined,
                          "VRTRasterBand of unrecognised subclass '%s'.",
                          pszSubclass );

            if( poBand != NULL
                && poBand->XMLInit( psChild, pszVRTPath ) == CE_None )
            {
                SetMaskBand(poBand);
                break;
            }
            else
            {
                if( poBand )
                    delete poBand;
                return CE_Failure;
            }
        }
    }

/* -------------------------------------------------------------------- */
/*      Create band information objects.                                */
/* -------------------------------------------------------------------- */
    int		nBands = 0;
    for( psChild=psTree->psChild; psChild != NULL; psChild=psChild->psNext )
    {
        if( psChild->eType == CXT_Element
            && EQUAL(psChild->pszValue,"VRTRasterBand") )
        {
            VRTRasterBand  *poBand = NULL;
            const char *pszSubclass = CPLGetXMLValue( psChild, "subclass", 
                                                      "VRTSourcedRasterBand" );

            if( EQUAL(pszSubclass,"VRTSourcedRasterBand") )
                poBand = new VRTSourcedRasterBand( this, nBands+1 );
            else if( EQUAL(pszSubclass, "VRTDerivedRasterBand") )
                poBand = new VRTDerivedRasterBand( this, nBands+1 );
            else if( EQUAL(pszSubclass, "VRTRawRasterBand") )
                poBand = new VRTRawRasterBand( this, nBands+1 );
            else if( EQUAL(pszSubclass, "VRTWarpedRasterBand") )
                poBand = new VRTWarpedRasterBand( this, nBands+1 );
            else
                CPLError( CE_Failure, CPLE_AppDefined,
                          "VRTRasterBand of unrecognised subclass '%s'.",
                          pszSubclass );

            if( poBand != NULL 
                && poBand->XMLInit( psChild, pszVRTPath ) == CE_None )
            {
                SetBand( ++nBands, poBand );
            }
            else
            {
                if( poBand )
                    delete poBand; 
                return CE_Failure;
            }
        }
    }
    
    return CE_None;
}
Esempio n. 7
0
int main( int nArgc, char ** papszArgv )

{
    OGRSpatialReference oSRS;
    int i;
    int bReportXML = FALSE;

    /* -------------------------------------------------------------------- */
    /*      Processing command line arguments.                              */
    /* -------------------------------------------------------------------- */
    nArgc = OGRGeneralCmdLineProcessor( nArgc, &papszArgv, 0 );

    if( nArgc < 2 )
        Usage();

    for( i = 1; i < nArgc; i++ )
    {
        if( EQUAL(papszArgv[i],"-xml") )
            bReportXML = TRUE;

        else if( EQUAL(papszArgv[i],"-t") && i < nArgc - 4 )
        {
            OGRSpatialReference oSourceSRS, oTargetSRS;
            OGRCoordinateTransformation *poCT;
            double                      x, y, z_orig, z;
            int                         nArgsUsed = 4;

            if( oSourceSRS.SetFromUserInput(papszArgv[i+1]) != OGRERR_NONE )
            {
                CPLError( CE_Failure, CPLE_AppDefined,
                          "SetFromUserInput(%s) failed.",
                          papszArgv[i+1] );
                continue;
            }
            if( oTargetSRS.SetFromUserInput(papszArgv[i+2]) != OGRERR_NONE )
            {
                CPLError( CE_Failure, CPLE_AppDefined,
                          "SetFromUserInput(%s) failed.",
                          papszArgv[i+2] );
                continue;
            }

            poCT = OGRCreateCoordinateTransformation( &oSourceSRS,
                    &oTargetSRS );
            x = CPLAtof( papszArgv[i+3] );
            y = CPLAtof( papszArgv[i+4] );
            if( i < nArgc - 5
                    && (CPLAtof(papszArgv[i+5]) > 0.0 || papszArgv[i+5][0] == '0') )
            {
                z_orig = z = CPLAtof(papszArgv[i+5]);
                nArgsUsed++;
            }
            else
                z_orig = z = 0;

            if( poCT == NULL || !poCT->Transform( 1, &x, &y, &z ) )
                printf( "Transformation failed.\n" );
            else
                printf( "(%f,%f,%f) -> (%f,%f,%f)\n",
                        CPLAtof( papszArgv[i+3] ),
                        CPLAtof( papszArgv[i+4] ),
                        z_orig,
                        x, y, z );

            i += nArgsUsed;
        }
        else
        {
            /* coverity[tainted_data] */
            if( oSRS.SetFromUserInput(papszArgv[i]) != OGRERR_NONE )
                CPLError( CE_Failure, CPLE_AppDefined,
                          "Error occurred translating %s.\n",
                          papszArgv[i] );
            else
            {
                char  *pszWKT = NULL;

                if( oSRS.Validate() != OGRERR_NONE )
                    printf( "Validate Fails.\n" );
                else
                    printf( "Validate Succeeds.\n" );

                oSRS.exportToPrettyWkt( &pszWKT, FALSE );
                printf( "WKT[%s] =\n%s\n",
                        papszArgv[i], pszWKT );
                CPLFree( pszWKT );

                printf( "\n" );

                oSRS.exportToPrettyWkt( &pszWKT, TRUE );
                printf( "Simplified WKT[%s] =\n%s\n",
                        papszArgv[i], pszWKT );
                CPLFree( pszWKT );

                printf( "\n" );

                OGRSpatialReference *poSRS2;

                poSRS2 = oSRS.Clone();
                poSRS2->StripCTParms();
                poSRS2->exportToWkt( &pszWKT );
                printf( "Old Style WKT[%s] = %s\n",
                        papszArgv[i], pszWKT );
                CPLFree( pszWKT );
                OGRSpatialReference::DestroySpatialReference( poSRS2 );

                poSRS2 = oSRS.Clone();
                poSRS2->morphToESRI();
                poSRS2->exportToPrettyWkt( &pszWKT, FALSE );
                printf( "ESRI'ified WKT[%s] = \n%s\n",
                        papszArgv[i], pszWKT );
                CPLFree( pszWKT );
                OGRSpatialReference::DestroySpatialReference( poSRS2 );

                oSRS.exportToProj4( &pszWKT );
                printf( "PROJ.4 rendering of [%s] = %s\n",
                        papszArgv[i], pszWKT );
                CPLFree( pszWKT );


                if( bReportXML )
                {
                    char       *pszRawXML;
                    if( oSRS.exportToXML(&pszRawXML) == OGRERR_NONE )
                    {
                        printf( "XML[%s] =\n%s\n",
                                papszArgv[i], pszRawXML );
                        CPLFree( pszRawXML );
                    }
                    else
                    {
                        printf( "XML translation failed\n" );
                    }
                }

                printf( "\n" );
            }
        }
    }

    CSLDestroy( papszArgv );
    OSRCleanup();
    CPLFinderClean();
    CPLCleanupTLS();

    return 0;
}
int main( int argc, char ** argv )
{
    GDALDriverH     hDriver;
    const char      *pszSource=NULL, *pszDest=NULL, *pszFormat = "GTiff";
    int             bFormatExplicitelySet = FALSE;
    char            **papszLayers = NULL;
    const char      *pszBurnAttribute = NULL;
    double          dfIncreaseBurnValue = 0.0;
    double          dfMultiplyBurnValue = 1.0;
    const char      *pszWHERE = NULL, *pszSQL = NULL;
    GDALDataType    eOutputType = GDT_Float64;
    char            **papszCreateOptions = NULL;
    GUInt32         nXSize = 0, nYSize = 0;
    double          dfXMin = 0.0, dfXMax = 0.0, dfYMin = 0.0, dfYMax = 0.0;
    int             bIsXExtentSet = FALSE, bIsYExtentSet = FALSE;
    GDALGridAlgorithm eAlgorithm = GGA_InverseDistanceToAPower;
    void            *pOptions = NULL;
    char            *pszOutputSRS = NULL;
    int             bQuiet = FALSE;
    GDALProgressFunc pfnProgress = GDALTermProgress;
    int             i;
    OGRGeometry     *poSpatialFilter = NULL;
    int             bClipSrc = FALSE;
    OGRGeometry     *poClipSrc = NULL;
    const char      *pszClipSrcDS = NULL;
    const char      *pszClipSrcSQL = NULL;
    const char      *pszClipSrcLayer = NULL;
    const char      *pszClipSrcWhere = NULL;

    /* Check strict compilation and runtime library version as we use C++ API */
    if (! GDAL_CHECK_VERSION(argv[0]))
        exit(1);

    GDALAllRegister();
    OGRRegisterAll();

    argc = GDALGeneralCmdLineProcessor( argc, &argv, 0 );
    if( argc < 1 )
        exit( -argc );

/* -------------------------------------------------------------------- */
/*      Parse arguments.                                                */
/* -------------------------------------------------------------------- */
    for( i = 1; i < argc; i++ )
    {
        if( EQUAL(argv[i], "--utility_version") )
        {
            printf("%s was compiled against GDAL %s and is running against GDAL %s\n",
                   argv[0], GDAL_RELEASE_NAME, GDALVersionInfo("RELEASE_NAME"));
            return 0;
        }
        else if( EQUAL(argv[i],"--help") )
            Usage();
        else if( EQUAL(argv[i],"-of") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            pszFormat = argv[++i];
            bFormatExplicitelySet = TRUE;
        }

        else if( EQUAL(argv[i],"-q") || EQUAL(argv[i],"-quiet") )
        {
            bQuiet = TRUE;
            pfnProgress = GDALDummyProgress;
        }

        else if( EQUAL(argv[i],"-ot") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            int	iType;
            
            for( iType = 1; iType < GDT_TypeCount; iType++ )
            {
                if( GDALGetDataTypeName((GDALDataType)iType) != NULL
                    && EQUAL(GDALGetDataTypeName((GDALDataType)iType),
                             argv[i+1]) )
                {
                    eOutputType = (GDALDataType) iType;
                }
            }

            if( eOutputType == GDT_Unknown )
            {
                Usage(CPLSPrintf("Unknown output pixel type: %s.",
                                 argv[i + 1] ));
            }
            i++;
        }

        else if( EQUAL(argv[i],"-txe") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
            dfXMin = atof(argv[++i]);
            dfXMax = atof(argv[++i]);
            bIsXExtentSet = TRUE;
        }   

        else if( EQUAL(argv[i],"-tye") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
            dfYMin = atof(argv[++i]);
            dfYMax = atof(argv[++i]);
            bIsYExtentSet = TRUE;
        }   

        else if( EQUAL(argv[i],"-outsize") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
            nXSize = atoi(argv[++i]);
            nYSize = atoi(argv[++i]);
        }   

        else if( EQUAL(argv[i],"-co") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            papszCreateOptions = CSLAddString( papszCreateOptions, argv[++i] );
        }   

        else if( EQUAL(argv[i],"-zfield") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            pszBurnAttribute = argv[++i];
        }

        else if( EQUAL(argv[i],"-z_increase") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            dfIncreaseBurnValue = atof(argv[++i]);
        }

        else if( EQUAL(argv[i],"-z_multiply") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            dfMultiplyBurnValue = atof(argv[++i]);
        }

        else if( EQUAL(argv[i],"-where") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            pszWHERE = argv[++i];
        }

        else if( EQUAL(argv[i],"-l") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            papszLayers = CSLAddString( papszLayers, argv[++i] );
        }

        else if( EQUAL(argv[i],"-sql") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            pszSQL = argv[++i];
        }

        else if( EQUAL(argv[i],"-spat") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(4);
            OGRLinearRing  oRing;

            oRing.addPoint( atof(argv[i+1]), atof(argv[i+2]) );
            oRing.addPoint( atof(argv[i+1]), atof(argv[i+4]) );
            oRing.addPoint( atof(argv[i+3]), atof(argv[i+4]) );
            oRing.addPoint( atof(argv[i+3]), atof(argv[i+2]) );
            oRing.addPoint( atof(argv[i+1]), atof(argv[i+2]) );

            poSpatialFilter = new OGRPolygon();
            ((OGRPolygon *) poSpatialFilter)->addRing( &oRing );
            i += 4;
        }

        else if ( EQUAL(argv[i],"-clipsrc") )
        {
            if (i + 1 >= argc)
                Usage(CPLSPrintf("%s option requires 1 or 4 arguments", argv[i]));

            bClipSrc = TRUE;
            errno = 0;
            const double unused = strtod( argv[i + 1], NULL );    // XXX: is it a number or not?
            if ( errno != 0
                 && argv[i + 2] != NULL
                 && argv[i + 3] != NULL
                 && argv[i + 4] != NULL)
            {
                OGRLinearRing  oRing;

                oRing.addPoint( atof(argv[i + 1]), atof(argv[i + 2]) );
                oRing.addPoint( atof(argv[i + 1]), atof(argv[i + 4]) );
                oRing.addPoint( atof(argv[i + 3]), atof(argv[i + 4]) );
                oRing.addPoint( atof(argv[i + 3]), atof(argv[i + 2]) );
                oRing.addPoint( atof(argv[i + 1]), atof(argv[i + 2]) );

                poClipSrc = new OGRPolygon();
                ((OGRPolygon *) poClipSrc)->addRing( &oRing );
                i += 4;

                (void)unused;
            }
            else if (EQUALN(argv[i + 1], "POLYGON", 7)
                     || EQUALN(argv[i + 1], "MULTIPOLYGON", 12))
            {
                OGRGeometryFactory::createFromWkt(&argv[i + 1], NULL, &poClipSrc);
                if ( poClipSrc == NULL )
                {
                    Usage("Invalid geometry. "
                             "Must be a valid POLYGON or MULTIPOLYGON WKT.");
                }
                i++;
            }
            else if (EQUAL(argv[i + 1], "spat_extent") )
            {
                i++;
            }
            else
            {
                pszClipSrcDS = argv[i + 1];
                i++;
            }
        }

        else if ( EQUAL(argv[i], "-clipsrcsql") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            pszClipSrcSQL = argv[i + 1];
            i++;
        }

        else if ( EQUAL(argv[i], "-clipsrclayer") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            pszClipSrcLayer = argv[i + 1];
            i++;
        }

        else if ( EQUAL(argv[i], "-clipsrcwhere") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            pszClipSrcWhere = argv[i + 1];
            i++;
        }

        else if( EQUAL(argv[i],"-a_srs") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            OGRSpatialReference oOutputSRS;

            if( oOutputSRS.SetFromUserInput( argv[i+1] ) != OGRERR_NONE )
            {
                fprintf( stderr, "Failed to process SRS definition: %s\n", 
                         argv[i+1] );
                GDALDestroyDriverManager();
                exit( 1 );
            }

            oOutputSRS.exportToWkt( &pszOutputSRS );
            i++;
        }   

        else if( EQUAL(argv[i],"-a") )
        {
            CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
            if ( ParseAlgorithmAndOptions( argv[++i], &eAlgorithm, &pOptions )
                 != CE_None )
            {
                fprintf( stderr,
                         "Failed to process algorithm name and parameters.\n" );
                exit( 1 );
            }
        }

        else if( argv[i][0] == '-' )
        {
            Usage(CPLSPrintf("Unknown option name '%s'", argv[i]));
        }

        else if( pszSource == NULL )
        {
            pszSource = argv[i];
        }

        else if( pszDest == NULL )
        {
            pszDest = argv[i];
        }

        else
        {
            Usage("Too many command options.");
        }
    }

    if( pszSource == NULL )
    {
        Usage("Source datasource is not specified.");
    }
    if( pszDest == NULL )
    {
        Usage("Target dataset is not specified.");
    }
    if( pszSQL == NULL && papszLayers == NULL )
    {
        Usage("Neither -sql nor -l are specified.");
    }
    
    if ( bClipSrc && pszClipSrcDS != NULL )
    {
        poClipSrc = LoadGeometry( pszClipSrcDS, pszClipSrcSQL,
                                  pszClipSrcLayer, pszClipSrcWhere );
        if ( poClipSrc == NULL )
        {
            Usage("Cannot load source clip geometry.");
        }
    }
    else if ( bClipSrc && poClipSrc == NULL && !poSpatialFilter )
    {
        Usage("-clipsrc must be used with -spat option or \n"
                 "a bounding box, WKT string or datasource must be "
                 "specified.");
    }

    if ( poSpatialFilter )
    {
        if ( poClipSrc )
        {
            OGRGeometry *poTemp = poSpatialFilter->Intersection( poClipSrc );

            if ( poTemp )
            {
                OGRGeometryFactory::destroyGeometry( poSpatialFilter );
                poSpatialFilter = poTemp;
            }

            OGRGeometryFactory::destroyGeometry( poClipSrc );
            poClipSrc = NULL;
        }
    }
    else
    {
        if ( poClipSrc )
        {
            poSpatialFilter = poClipSrc;
            poClipSrc = NULL;
        }
    }

/* -------------------------------------------------------------------- */
/*      Find the output driver.                                         */
/* -------------------------------------------------------------------- */
    hDriver = GDALGetDriverByName( pszFormat );
    if( hDriver == NULL )
    {
        int	iDr;
        
        fprintf( stderr,
                 "FAILURE: Output driver `%s' not recognised.\n", pszFormat );
        fprintf( stderr,
        "The following format drivers are configured and support output:\n" );
        for( iDr = 0; iDr < GDALGetDriverCount(); iDr++ )
        {
            GDALDriverH hDriver = GDALGetDriver(iDr);

            if( GDALGetMetadataItem( hDriver, GDAL_DCAP_CREATE, NULL ) != NULL
                || GDALGetMetadataItem( hDriver, GDAL_DCAP_CREATECOPY,
                                        NULL ) != NULL )
            {
                fprintf( stderr, "  %s: %s\n",
                         GDALGetDriverShortName( hDriver  ),
                         GDALGetDriverLongName( hDriver ) );
            }
        }
        printf( "\n" );
        Usage();
    }

/* -------------------------------------------------------------------- */
/*      Open input datasource.                                          */
/* -------------------------------------------------------------------- */
    OGRDataSourceH hSrcDS;

    hSrcDS = OGROpen( pszSource, FALSE, NULL );
    if( hSrcDS == NULL )
    {
        fprintf( stderr, "Unable to open input datasource \"%s\".\n",
                 pszSource );
        fprintf( stderr, "%s\n", CPLGetLastErrorMsg() );
        exit( 3 );
    }

/* -------------------------------------------------------------------- */
/*      Create target raster file.                                      */
/* -------------------------------------------------------------------- */
    GDALDatasetH    hDstDS;
    int             nLayerCount = CSLCount(papszLayers);
    int             nBands = nLayerCount;

    if ( pszSQL )
        nBands++;

    // FIXME
    if ( nXSize == 0 )
        nXSize = 256;
    if ( nYSize == 0 )
        nYSize = 256;

    if (!bQuiet && !bFormatExplicitelySet)
        CheckExtensionConsistency(pszDest, pszFormat);

    hDstDS = GDALCreate( hDriver, pszDest, nXSize, nYSize, nBands,
                         eOutputType, papszCreateOptions );
    if ( hDstDS == NULL )
    {
        fprintf( stderr, "Unable to create target dataset \"%s\".\n",
                 pszDest );
        fprintf( stderr, "%s\n", CPLGetLastErrorMsg() );
        exit( 3 );
    }

/* -------------------------------------------------------------------- */
/*      If algorithm was not specified assigh default one.              */
/* -------------------------------------------------------------------- */
    if ( !pOptions )
        ParseAlgorithmAndOptions( szAlgNameInvDist, &eAlgorithm, &pOptions );

/* -------------------------------------------------------------------- */
/*      Process SQL request.                                            */
/* -------------------------------------------------------------------- */
    if( pszSQL != NULL )
    {
        OGRLayerH hLayer;

        hLayer = OGR_DS_ExecuteSQL( hSrcDS, pszSQL,
                                    (OGRGeometryH)poSpatialFilter, NULL ); 
        if( hLayer != NULL )
        {
            // Custom layer will be rasterized in the first band.
            ProcessLayer( hLayer, hDstDS, poSpatialFilter, nXSize, nYSize, 1,
                          bIsXExtentSet, bIsYExtentSet,
                          dfXMin, dfXMax, dfYMin, dfYMax, pszBurnAttribute,
                          dfIncreaseBurnValue, dfMultiplyBurnValue, eOutputType, eAlgorithm, pOptions,
                          bQuiet, pfnProgress );
        }
    }

/* -------------------------------------------------------------------- */
/*      Process each layer.                                             */
/* -------------------------------------------------------------------- */
    for( i = 0; i < nLayerCount; i++ )
    {
        OGRLayerH hLayer = OGR_DS_GetLayerByName( hSrcDS, papszLayers[i]);
        if( hLayer == NULL )
        {
            fprintf( stderr, "Unable to find layer \"%s\", skipping.\n", 
                     papszLayers[i] );
            continue;
        }

        if( pszWHERE )
        {
            if( OGR_L_SetAttributeFilter( hLayer, pszWHERE ) != OGRERR_NONE )
                break;
        }

        if ( poSpatialFilter != NULL )
            OGR_L_SetSpatialFilter( hLayer, (OGRGeometryH)poSpatialFilter );

        // Fetch the first meaningful SRS definition
        if ( !pszOutputSRS )
        {
            OGRSpatialReferenceH hSRS = OGR_L_GetSpatialRef( hLayer );
            if ( hSRS )
                OSRExportToWkt( hSRS, &pszOutputSRS );
        }

        ProcessLayer( hLayer, hDstDS, poSpatialFilter, nXSize, nYSize,
                      i + 1 + nBands - nLayerCount,
                      bIsXExtentSet, bIsYExtentSet,
                      dfXMin, dfXMax, dfYMin, dfYMax, pszBurnAttribute,
                      dfIncreaseBurnValue, dfMultiplyBurnValue, eOutputType, eAlgorithm, pOptions,
                      bQuiet, pfnProgress );
    }

/* -------------------------------------------------------------------- */
/*      Apply geotransformation matrix.                                 */
/* -------------------------------------------------------------------- */
    double  adfGeoTransform[6];
    adfGeoTransform[0] = dfXMin;
    adfGeoTransform[1] = (dfXMax - dfXMin) / nXSize;
    adfGeoTransform[2] = 0.0;
    adfGeoTransform[3] = dfYMin;
    adfGeoTransform[4] = 0.0;
    adfGeoTransform[5] = (dfYMax - dfYMin) / nYSize;
    GDALSetGeoTransform( hDstDS, adfGeoTransform );

/* -------------------------------------------------------------------- */
/*      Apply SRS definition if set.                                    */
/* -------------------------------------------------------------------- */
    if ( pszOutputSRS )
    {
        GDALSetProjection( hDstDS, pszOutputSRS );
        CPLFree( pszOutputSRS );
    }

/* -------------------------------------------------------------------- */
/*      Cleanup                                                         */
/* -------------------------------------------------------------------- */
    OGR_DS_Destroy( hSrcDS );
    GDALClose( hDstDS );
    OGRGeometryFactory::destroyGeometry( poSpatialFilter );

    CPLFree( pOptions );
    CSLDestroy( papszCreateOptions );
    CSLDestroy( argv );
    CSLDestroy( papszLayers );

    OGRCleanupAll();

    GDALDestroyDriverManager();
 
    return 0;
}
Esempio n. 9
0
OGRLayer*  OGRVRTDataSource::InstanciateWarpedLayer(
                                        CPLXMLNode *psLTree,
                                        const char *pszVRTDirectory,
                                        int bUpdate,
                                        int nRecLevel)
{
    if( !EQUAL(psLTree->pszValue,"OGRVRTWarpedLayer") )
        return NULL;

    CPLXMLNode *psSubNode;
    OGRLayer* poSrcLayer = NULL;

    for( psSubNode=psLTree->psChild;
         psSubNode != NULL;
         psSubNode=psSubNode->psNext )
    {
        if( psSubNode->eType != CXT_Element )
            continue;

        poSrcLayer = InstanciateLayer(psSubNode, pszVRTDirectory,
                                 bUpdate, nRecLevel + 1);
        if( poSrcLayer != NULL )
            break;
    }

    if( poSrcLayer == NULL )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "Cannot instanciate source layer" );
        return NULL;
    }

    const char* pszTargetSRS = CPLGetXMLValue(psLTree, "TargetSRS", NULL);
    if( pszTargetSRS == NULL )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "Missing TargetSRS element within OGRVRTWarpedLayer" );
        delete poSrcLayer;
        return NULL;
    }

    const char* pszGeomFieldName = CPLGetXMLValue(psLTree, "WarpedGeomFieldName", NULL);
    int iGeomField = 0;
    if( pszGeomFieldName != NULL )
    {
        iGeomField = poSrcLayer->GetLayerDefn()->GetGeomFieldIndex(pszGeomFieldName);
        if( iGeomField < 0 )
        {
            CPLError( CE_Failure, CPLE_AppDefined,
                  "Cannot find source geometry field '%s'", pszGeomFieldName );
            delete poSrcLayer;
            return NULL;
        }
    }

    OGRSpatialReference* poSrcSRS;
    OGRSpatialReference* poTargetSRS;
    const char* pszSourceSRS = CPLGetXMLValue(psLTree, "SrcSRS", NULL);

    if( pszSourceSRS == NULL )
    {
        poSrcSRS = poSrcLayer->GetLayerDefn()->GetGeomFieldDefn(iGeomField)->GetSpatialRef();
        if( poSrcSRS != NULL)
            poSrcSRS = poSrcSRS->Clone();
    }
    else
    {
        poSrcSRS = new OGRSpatialReference();
        if( poSrcSRS->SetFromUserInput(pszSourceSRS) != OGRERR_NONE )
        {
            delete poSrcSRS;
            poSrcSRS = NULL;
        }
    }

    if( poSrcSRS == NULL )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "Failed to import source SRS" );
        delete poSrcLayer;
        return NULL;
    }

    poTargetSRS = new OGRSpatialReference();
    if( poTargetSRS->SetFromUserInput(pszTargetSRS) != OGRERR_NONE )
    {
        delete poTargetSRS;
        poTargetSRS = NULL;
    }

    if( poTargetSRS == NULL )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "Failed to import target SRS" );
        delete poSrcSRS;
        delete poSrcLayer;
        return NULL;
    }

    if( pszSourceSRS == NULL && poSrcSRS->IsSame(poTargetSRS) )
    {
        delete poSrcSRS;
        delete poTargetSRS;
        return poSrcLayer;
    }

    OGRCoordinateTransformation* poCT =
        OGRCreateCoordinateTransformation( poSrcSRS, poTargetSRS );
    OGRCoordinateTransformation* poReversedCT = (poCT != NULL) ?
        OGRCreateCoordinateTransformation( poTargetSRS, poSrcSRS ) : NULL;

    delete poSrcSRS;
    delete poTargetSRS;

    if( poCT == NULL )
    {
        delete poSrcLayer;
        return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Build the OGRWarpedLayer.                                       */
/* -------------------------------------------------------------------- */

    OGRWarpedLayer* poLayer = new OGRWarpedLayer(poSrcLayer, iGeomField,
                                                 TRUE, poCT, poReversedCT);

/* -------------------------------------------------------------------- */
/*      Set Extent if provided                                          */
/* -------------------------------------------------------------------- */
    const char* pszExtentXMin = CPLGetXMLValue( psLTree, "ExtentXMin", NULL );
    const char* pszExtentYMin = CPLGetXMLValue( psLTree, "ExtentYMin", NULL );
    const char* pszExtentXMax = CPLGetXMLValue( psLTree, "ExtentXMax", NULL );
    const char* pszExtentYMax = CPLGetXMLValue( psLTree, "ExtentYMax", NULL );
    if( pszExtentXMin != NULL && pszExtentYMin != NULL &&
        pszExtentXMax != NULL && pszExtentYMax != NULL )
    {
        poLayer->SetExtent( CPLAtof(pszExtentXMin),
                            CPLAtof(pszExtentYMin),
                            CPLAtof(pszExtentXMax),
                            CPLAtof(pszExtentYMax) );
    }

    return poLayer;
}
Esempio n. 10
0
OGRLayer*  OGRVRTDataSource::InstanciateUnionLayer(
                                        CPLXMLNode *psLTree,
                                        const char *pszVRTDirectory,
                                        int bUpdate,
                                        int nRecLevel)
{
    CPLXMLNode *psSubNode;

    if( !EQUAL(psLTree->pszValue,"OGRVRTUnionLayer") )
        return NULL;

/* -------------------------------------------------------------------- */
/*      Get layer name.                                                 */
/* -------------------------------------------------------------------- */
    const char *pszLayerName = CPLGetXMLValue( psLTree, "name", NULL );

    if( pszLayerName == NULL )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "Missing name attribute on OGRVRTUnionLayer" );
        return FALSE;
    }

/* -------------------------------------------------------------------- */
/*      Do we have a fixed geometry type?  If not derive from the       */
/*      source layer.                                                   */
/* -------------------------------------------------------------------- */
    const char* pszGType = CPLGetXMLValue( psLTree, "GeometryType", NULL );
    int bGlobalGeomTypeSet = FALSE;
    OGRwkbGeometryType eGlobalGeomType = wkbUnknown;
    if( pszGType != NULL )
    {
        int bError;
        bGlobalGeomTypeSet = TRUE;
        eGlobalGeomType = OGRVRTGetGeometryType(pszGType, &bError);
        if( bError )
        {
            CPLError( CE_Failure, CPLE_AppDefined,
                    "GeometryType %s not recognised.",
                    pszGType );
            return NULL;
        }
    }

/* -------------------------------------------------------------------- */
/*      Apply a spatial reference system if provided                    */
/* -------------------------------------------------------------------- */
     const char* pszLayerSRS = CPLGetXMLValue( psLTree, "LayerSRS", NULL );
     OGRSpatialReference* poGlobalSRS = NULL;
     int bGlobalSRSSet = FALSE;
     if( pszLayerSRS != NULL )
     {
         bGlobalSRSSet = TRUE;
         if( !EQUAL(pszLayerSRS,"NULL") )
         {
             OGRSpatialReference oSRS;

             if( oSRS.SetFromUserInput( pszLayerSRS ) != OGRERR_NONE )
             {
                 CPLError( CE_Failure, CPLE_AppDefined,
                           "Failed to import LayerSRS `%s'.", pszLayerSRS );
                 return FALSE;
             }
             poGlobalSRS = oSRS.Clone();
         }
     }

/* -------------------------------------------------------------------- */
/*      Find field declarations.                                        */
/* -------------------------------------------------------------------- */
    OGRFieldDefn** papoFields = NULL;
    int nFields = 0;
    OGRUnionLayerGeomFieldDefn** papoGeomFields = NULL;
    int nGeomFields = 0;

    for( psSubNode=psLTree->psChild;
         psSubNode != NULL;
         psSubNode=psSubNode->psNext )
    {
         if( psSubNode->eType != CXT_Element )
             continue;

         if( psSubNode->eType == CXT_Element && EQUAL(psSubNode->pszValue,"Field") )
         {
/* -------------------------------------------------------------------- */
/*      Field name.                                                     */
/* -------------------------------------------------------------------- */
             const char *pszName = CPLGetXMLValue( psSubNode, "name", NULL );
             if( pszName == NULL )
             {
                 CPLError( CE_Failure, CPLE_AppDefined,
                           "Unable to identify Field name." );
                 break;
             }

             OGRFieldDefn oFieldDefn( pszName, OFTString );

/* -------------------------------------------------------------------- */
/*      Type                                                            */
/* -------------------------------------------------------------------- */
             const char *pszArg = CPLGetXMLValue( psSubNode, "type", NULL );

             if( pszArg != NULL )
             {
                 int iType;

                 for( iType = 0; iType <= (int) OFTMaxType; iType++ )
                 {
                     if( EQUAL(pszArg,OGRFieldDefn::GetFieldTypeName(
                                   (OGRFieldType)iType)) )
                     {
                         oFieldDefn.SetType( (OGRFieldType) iType );
                         break;
                     }
                 }

                 if( iType > (int) OFTMaxType )
                 {
                     CPLError( CE_Failure, CPLE_AppDefined,
                               "Unable to identify Field type '%s'.",
                               pszArg );
                     break;
                 }
             }

/* -------------------------------------------------------------------- */
/*      Width and precision.                                            */
/* -------------------------------------------------------------------- */
             int nWidth = atoi(CPLGetXMLValue( psSubNode, "width", "0" ));
             if (nWidth < 0)
             {
                CPLError( CE_Failure, CPLE_IllegalArg,
                          "Invalid width for field %s.",
                          pszName );
                break;
             }
             oFieldDefn.SetWidth(nWidth);

             int nPrecision = atoi(CPLGetXMLValue( psSubNode, "precision", "0" ));
             if (nPrecision < 0 || nPrecision > 1024)
             {
                CPLError( CE_Failure, CPLE_IllegalArg,
                          "Invalid precision for field %s.",
                          pszName );
                break;
             }
             oFieldDefn.SetPrecision(nPrecision);

             papoFields = (OGRFieldDefn**) CPLRealloc(papoFields,
                                        sizeof(OGRFieldDefn*) * (nFields + 1));
             papoFields[nFields] = new OGRFieldDefn(&oFieldDefn);
             nFields ++;
         }

         else if( psSubNode->eType == CXT_Element &&
                  EQUAL(psSubNode->pszValue,"GeometryField") )
         {
             const char *pszName = CPLGetXMLValue( psSubNode, "name", NULL );
             if( pszName == NULL )
             {
                 CPLError( CE_Failure, CPLE_AppDefined,
                           "Unable to identify GeometryField name." );
                 break;
             }

             pszGType = CPLGetXMLValue( psSubNode, "GeometryType", NULL );
             if( pszGType == NULL && nGeomFields == 0 )
                 pszGType = CPLGetXMLValue( psLTree, "GeometryType", NULL );
             OGRwkbGeometryType eGeomType = wkbUnknown;
             int bGeomTypeSet = FALSE;
             if( pszGType != NULL )
             {
                int bError;
                eGeomType = OGRVRTGetGeometryType(pszGType, &bError);
                bGeomTypeSet = TRUE;
                if( bError || eGeomType == wkbNone )
                {
                    CPLError( CE_Failure, CPLE_AppDefined,
                            "GeometryType %s not recognised.",
                            pszGType );
                    break;
                }
             }

             const char* pszSRS = CPLGetXMLValue( psSubNode, "SRS", NULL );
             if( pszSRS == NULL && nGeomFields == 0 )
                 pszSRS = CPLGetXMLValue( psLTree, "LayerSRS", NULL );
             OGRSpatialReference* poSRS = NULL;
             int bSRSSet = FALSE;
             if( pszSRS != NULL )
             {
                 bSRSSet = TRUE;
                 if( !EQUAL(pszSRS,"NULL") )
                 {
                    OGRSpatialReference oSRS;

                    if( oSRS.SetFromUserInput( pszSRS ) != OGRERR_NONE )
                    {
                        CPLError( CE_Failure, CPLE_AppDefined,
                                "Failed to import SRS `%s'.", pszSRS );
                        break;
                    }
                    poSRS = oSRS.Clone();
                }
             }

             OGRUnionLayerGeomFieldDefn* poFieldDefn =
                    new OGRUnionLayerGeomFieldDefn(pszName, eGeomType);
             if( poSRS != NULL )
             {
                poFieldDefn->SetSpatialRef(poSRS);
                poSRS->Dereference();
             }
             poFieldDefn->bGeomTypeSet = bGeomTypeSet;
             poFieldDefn->bSRSSet = bSRSSet;

             const char* pszExtentXMin = CPLGetXMLValue( psSubNode, "ExtentXMin", NULL );
             const char* pszExtentYMin = CPLGetXMLValue( psSubNode, "ExtentYMin", NULL );
             const char* pszExtentXMax = CPLGetXMLValue( psSubNode, "ExtentXMax", NULL );
             const char* pszExtentYMax = CPLGetXMLValue( psSubNode, "ExtentYMax", NULL );
             if( pszExtentXMin != NULL && pszExtentYMin != NULL &&
                 pszExtentXMax != NULL && pszExtentYMax != NULL )
             {
                poFieldDefn->sStaticEnvelope.MinX = CPLAtof(pszExtentXMin);
                poFieldDefn->sStaticEnvelope.MinY = CPLAtof(pszExtentYMin);
                poFieldDefn->sStaticEnvelope.MaxX = CPLAtof(pszExtentXMax);
                poFieldDefn->sStaticEnvelope.MaxY = CPLAtof(pszExtentYMax);
             }

             papoGeomFields = (OGRUnionLayerGeomFieldDefn**) CPLRealloc(papoGeomFields,
                                        sizeof(OGRUnionLayerGeomFieldDefn*) * (nGeomFields + 1));
             papoGeomFields[nGeomFields] = poFieldDefn;
             nGeomFields ++;
         }
    }

/* -------------------------------------------------------------------- */
/*      Set Extent if provided                                          */
/* -------------------------------------------------------------------- */
    const char* pszExtentXMin = CPLGetXMLValue( psLTree, "ExtentXMin", NULL );
    const char* pszExtentYMin = CPLGetXMLValue( psLTree, "ExtentYMin", NULL );
    const char* pszExtentXMax = CPLGetXMLValue( psLTree, "ExtentXMax", NULL );
    const char* pszExtentYMax = CPLGetXMLValue( psLTree, "ExtentYMax", NULL );

    if( eGlobalGeomType != wkbNone && nGeomFields == 0 &&
        (bGlobalGeomTypeSet || bGlobalSRSSet ||
         (pszExtentXMin != NULL && pszExtentYMin != NULL &&
          pszExtentXMax != NULL && pszExtentYMax != NULL)) )
    {
        OGRUnionLayerGeomFieldDefn* poFieldDefn =
                new OGRUnionLayerGeomFieldDefn("", eGlobalGeomType);
        if( poGlobalSRS != NULL )
        {
            poFieldDefn->SetSpatialRef(poGlobalSRS);
            poGlobalSRS->Dereference();
            poGlobalSRS = NULL;
        }
        poFieldDefn->bGeomTypeSet = bGlobalGeomTypeSet;
        poFieldDefn->bSRSSet = bGlobalSRSSet;
        if( pszExtentXMin != NULL && pszExtentYMin != NULL &&
            pszExtentXMax != NULL && pszExtentYMax != NULL )
        {
            poFieldDefn->sStaticEnvelope.MinX = CPLAtof(pszExtentXMin);
            poFieldDefn->sStaticEnvelope.MinY = CPLAtof(pszExtentYMin);
            poFieldDefn->sStaticEnvelope.MaxX = CPLAtof(pszExtentXMax);
            poFieldDefn->sStaticEnvelope.MaxY = CPLAtof(pszExtentYMax);
        }

        papoGeomFields = (OGRUnionLayerGeomFieldDefn**) CPLRealloc(papoGeomFields,
                                sizeof(OGRUnionLayerGeomFieldDefn*) * (nGeomFields + 1));
        papoGeomFields[nGeomFields] = poFieldDefn;
        nGeomFields ++;
    }
    else
    {
        delete poGlobalSRS;
        poGlobalSRS = NULL;
    }

/* -------------------------------------------------------------------- */
/*      Find source layers                                              */
/* -------------------------------------------------------------------- */

    int nSrcLayers = 0;
    OGRLayer** papoSrcLayers = NULL;

    for( psSubNode=psLTree->psChild;
         psSubNode != NULL;
         psSubNode=psSubNode->psNext )
    {
        if( psSubNode->eType != CXT_Element )
            continue;

        OGRLayer* poSrcLayer = InstanciateLayer(psSubNode, pszVRTDirectory,
                                           bUpdate, nRecLevel + 1);
        if( poSrcLayer != NULL )
        {
            papoSrcLayers = (OGRLayer**)
                CPLRealloc(papoSrcLayers, sizeof(OGRLayer*) * (nSrcLayers + 1));
            papoSrcLayers[nSrcLayers] = poSrcLayer;
            nSrcLayers ++;
        }
    }

    if( nSrcLayers == 0 )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "Cannot find source layers" );
        int iField;
        for(iField = 0; iField < nFields; iField++)
            delete papoFields[iField];
        CPLFree(papoFields);
        for(iField = 0; iField < nGeomFields; iField++)
            delete papoGeomFields[iField];
        CPLFree(papoGeomFields);
        return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Build the OGRUnionLayer.                                        */
/* -------------------------------------------------------------------- */
    OGRUnionLayer* poLayer = new OGRUnionLayer( pszLayerName,
                                                nSrcLayers,
                                                papoSrcLayers,
                                                TRUE );

/* -------------------------------------------------------------------- */
/*      Set the source layer field name attribute.                      */
/* -------------------------------------------------------------------- */
    const char* pszSourceLayerFieldName =
        CPLGetXMLValue( psLTree, "SourceLayerFieldName", NULL );
    poLayer->SetSourceLayerFieldName(pszSourceLayerFieldName);

/* -------------------------------------------------------------------- */
/*      Set the PreserveSrcFID attribute.                               */
/* -------------------------------------------------------------------- */
    int bPreserveSrcFID = FALSE;
    const char* pszPreserveFID = CPLGetXMLValue( psLTree, "PreserveSrcFID", NULL );
    if( pszPreserveFID != NULL )
        bPreserveSrcFID = CSLTestBoolean(pszPreserveFID);
    poLayer->SetPreserveSrcFID(bPreserveSrcFID);

/* -------------------------------------------------------------------- */
/*      Set fields                                                      */
/* -------------------------------------------------------------------- */
    FieldUnionStrategy eFieldStrategy = FIELD_UNION_ALL_LAYERS;
    const char* pszFieldStrategy = CPLGetXMLValue( psLTree, "FieldStrategy", NULL );
    if( pszFieldStrategy != NULL )
    {
        if( EQUAL(pszFieldStrategy, "FirstLayer") )
            eFieldStrategy = FIELD_FROM_FIRST_LAYER;
        else if( EQUAL(pszFieldStrategy, "Union") )
            eFieldStrategy = FIELD_UNION_ALL_LAYERS;
        else if( EQUAL(pszFieldStrategy, "Intersection") )
            eFieldStrategy = FIELD_INTERSECTION_ALL_LAYERS;
        else
        {
            CPLError( CE_Warning, CPLE_AppDefined,
                      "Unhandled value for FieldStrategy `%s'.", pszFieldStrategy );
        }
    }
    if( nFields != 0 || nGeomFields > 1 )
    {
        if( pszFieldStrategy != NULL )
            CPLError( CE_Warning, CPLE_AppDefined,
                      "Ignoring FieldStrategy value, because explicit Field or GeometryField is provided") ;
        eFieldStrategy = FIELD_SPECIFIED;
    }

    poLayer->SetFields(eFieldStrategy, nFields, papoFields,
                       (nGeomFields == 0 && eGlobalGeomType == wkbNone) ? -1 : nGeomFields,
                       papoGeomFields);
    int iField;
    for(iField = 0; iField < nFields; iField++)
        delete papoFields[iField];
    CPLFree(papoFields);
    for(iField = 0; iField < nGeomFields; iField++)
        delete papoGeomFields[iField];
    CPLFree(papoGeomFields);

/* -------------------------------------------------------------------- */
/*      Set FeatureCount if provided                                    */
/* -------------------------------------------------------------------- */
    const char* pszFeatureCount = CPLGetXMLValue( psLTree, "FeatureCount", NULL );
    if( pszFeatureCount != NULL )
    {
        poLayer->SetFeatureCount(atoi(pszFeatureCount));
    }

    return poLayer;
}
Esempio n. 11
0
OGRNASLayer *OGRNASDataSource::TranslateNASSchema( GMLFeatureClass *poClass )

{
    OGRwkbGeometryType eGType = wkbNone;

    if( poClass->GetGeometryPropertyCount() != 0 )
    {
        eGType = static_cast<OGRwkbGeometryType>(
            poClass->GetGeometryProperty(0)->GetType() );

        if( poClass->GetFeatureCount() == 0 )
            eGType = wkbUnknown;
    }

/* -------------------------------------------------------------------- */
/*      Translate SRS.                                                  */
/* -------------------------------------------------------------------- */
    const char* pszSRSName = poClass->GetSRSName();
    OGRSpatialReference* poSRS = NULL;
    if (pszSRSName)
    {
        const char *pszHandle = strrchr( pszSRSName, ':' );
        if( pszHandle != NULL )
        {
            pszHandle += 1;

            poSRS = new OGRSpatialReference();

            for( int i = 0; apszURNNames[i*2+0] != NULL; i++ )
            {
                const char *pszTarget = apszURNNames[i*2+0];
                const int nTLen = static_cast<int>(strlen(pszTarget));

                // Are we just looking for a prefix match?
                if( pszTarget[nTLen-1] == '*' )
                {
                    if( EQUALN(pszTarget,pszHandle,nTLen-1) )
                        pszSRSName = apszURNNames[i*2+1];
                }
                else
                {
                    if( EQUAL(pszTarget,pszHandle) )
                        pszSRSName = apszURNNames[i*2+1];
                }
            }

            if (poSRS->SetFromUserInput(pszSRSName) != OGRERR_NONE)
            {
                CPLDebug( "NAS", "Failed to translate srsName='%s'",
                        pszSRSName );
                delete poSRS;
                poSRS = NULL;
            }
        }
    }

/* -------------------------------------------------------------------- */
/*      Create an empty layer.                                          */
/* -------------------------------------------------------------------- */
    OGRNASLayer *poLayer =
        new OGRNASLayer( poClass->GetName(), poSRS, eGType, this );
    delete poSRS;

/* -------------------------------------------------------------------- */
/*      Added attributes (properties).                                  */
/* -------------------------------------------------------------------- */
    for( int iField = 0; iField < poClass->GetPropertyCount(); iField++ )
    {
        GMLPropertyDefn *poProperty = poClass->GetProperty( iField );
        OGRFieldType eFType;

        if( poProperty->GetType() == GMLPT_Untyped )
            eFType = OFTString;
        else if( poProperty->GetType() == GMLPT_String )
            eFType = OFTString;
        else if( poProperty->GetType() == GMLPT_Integer )
            eFType = OFTInteger;
        else if( poProperty->GetType() == GMLPT_Real )
            eFType = OFTReal;
        else if( poProperty->GetType() == GMLPT_StringList )
            eFType = OFTStringList;
        else if( poProperty->GetType() == GMLPT_IntegerList )
            eFType = OFTIntegerList;
        else if( poProperty->GetType() == GMLPT_RealList )
            eFType = OFTRealList;
        else
            eFType = OFTString;

        OGRFieldDefn oField( poProperty->GetName(), eFType );
        if ( STARTS_WITH_CI(oField.GetNameRef(), "ogr:") )
          oField.SetName(poProperty->GetName()+4);
        if( poProperty->GetWidth() > 0 )
            oField.SetWidth( poProperty->GetWidth() );

        poLayer->GetLayerDefn()->AddFieldDefn( &oField );
    }

    return poLayer;
}
Esempio n. 12
0
int GDALJP2Metadata::ParseGMLCoverageDesc() 

{
/* -------------------------------------------------------------------- */
/*      Do we have an XML doc that is apparently a coverage             */
/*      description?                                                    */
/* -------------------------------------------------------------------- */
    const char *pszCoverage = CSLFetchNameValue( papszGMLMetadata, 
                                                 "gml.root-instance" );

    if( pszCoverage == NULL )
        return FALSE;

    CPLDebug( "GDALJP2Metadata", "Found GML Box:\n%s", pszCoverage );

/* -------------------------------------------------------------------- */
/*      Try parsing the XML.  Wipe any namespace prefixes.              */
/* -------------------------------------------------------------------- */
    CPLXMLNode *psXML = CPLParseXMLString( pszCoverage );

    if( psXML == NULL )
        return FALSE;

    CPLStripXMLNamespace( psXML, NULL, TRUE );

/* -------------------------------------------------------------------- */
/*      Isolate RectifiedGrid.  Eventually we will need to support      */
/*      other georeferencing objects.                                   */
/* -------------------------------------------------------------------- */
    CPLXMLNode *psRG = CPLSearchXMLNode( psXML, "=RectifiedGrid" );
    CPLXMLNode *psOriginPoint = NULL;
    const char *pszOffset1=NULL, *pszOffset2=NULL;

    if( psRG != NULL )
    {
        psOriginPoint = CPLGetXMLNode( psRG, "origin.Point" );

        
        CPLXMLNode *psOffset1 = CPLGetXMLNode( psRG, "offsetVector" );
        if( psOffset1 != NULL )
        {
            pszOffset1 = CPLGetXMLValue( psOffset1, "", NULL );
            pszOffset2 = CPLGetXMLValue( psOffset1->psNext, "=offsetVector", 
                                         NULL );
        }
    }

/* -------------------------------------------------------------------- */
/*      If we are missing any of the origin or 2 offsets then give up.  */
/* -------------------------------------------------------------------- */
    if( psOriginPoint == NULL || pszOffset1 == NULL || pszOffset2 == NULL )
    {
        CPLDestroyXMLNode( psXML );
        return FALSE;
    }

/* -------------------------------------------------------------------- */
/*      Extract origin location.                                        */
/* -------------------------------------------------------------------- */
    OGRPoint *poOriginGeometry = NULL;
    const char *pszSRSName = NULL;

    if( psOriginPoint != NULL )
    {
        poOriginGeometry = (OGRPoint *) 
            OGR_G_CreateFromGMLTree( psOriginPoint );

        if( poOriginGeometry != NULL 
            && wkbFlatten(poOriginGeometry->getGeometryType()) != wkbPoint )
        {
            delete poOriginGeometry;
            poOriginGeometry = NULL;
        }

        // SRS?
        pszSRSName = CPLGetXMLValue( psOriginPoint, "srsName", NULL );
    }

/* -------------------------------------------------------------------- */
/*      Extract offset(s)                                               */
/* -------------------------------------------------------------------- */
    char **papszOffset1Tokens = NULL;
    char **papszOffset2Tokens = NULL;
    int bSuccess = FALSE;

    papszOffset1Tokens = 
        CSLTokenizeStringComplex( pszOffset1, " ,", FALSE, FALSE );
    papszOffset2Tokens = 
        CSLTokenizeStringComplex( pszOffset2, " ,", FALSE, FALSE );

    if( CSLCount(papszOffset1Tokens) >= 2
        && CSLCount(papszOffset2Tokens) >= 2
        && poOriginGeometry != NULL )
    {
        adfGeoTransform[0] = poOriginGeometry->getX();
        adfGeoTransform[1] = atof(papszOffset1Tokens[0]);
        adfGeoTransform[2] = atof(papszOffset2Tokens[0]);
        adfGeoTransform[3] = poOriginGeometry->getY();
        adfGeoTransform[4] = atof(papszOffset1Tokens[1]);
        adfGeoTransform[5] = atof(papszOffset2Tokens[1]);

        // offset from center of pixel.
        adfGeoTransform[0] -= adfGeoTransform[1]*0.5;
        adfGeoTransform[0] -= adfGeoTransform[2]*0.5;
        adfGeoTransform[3] -= adfGeoTransform[4]*0.5;
        adfGeoTransform[3] -= adfGeoTransform[5]*0.5;

        bSuccess = TRUE;
        bHaveGeoTransform = TRUE;
    }

    CSLDestroy( papszOffset1Tokens );
    CSLDestroy( papszOffset2Tokens );

    if( poOriginGeometry != NULL )
        delete poOriginGeometry;

/* -------------------------------------------------------------------- */
/*      If we still don't have an srsName, check for it on the          */
/*      boundedBy Envelope.  Some products                              */
/*      (ie. EuropeRasterTile23.jpx) use this as the only srsName       */
/*      delivery vehicle.                                               */
/* -------------------------------------------------------------------- */
    if( pszSRSName == NULL )
    {
        pszSRSName = 
            CPLGetXMLValue( psXML,
                            "=FeatureCollection.boundedBy.Envelope.srsName",
                            NULL );
    }

/* -------------------------------------------------------------------- */
/*      If we have gotten a geotransform, then try to interprete the    */
/*      srsName.                                                        */
/* -------------------------------------------------------------------- */
    int bNeedAxisFlip = FALSE;

    if( bSuccess && pszSRSName != NULL 
        && (pszProjection == NULL || strlen(pszProjection) == 0) )
    {
        OGRSpatialReference oSRS;

        if( EQUALN(pszSRSName,"epsg:",5) )
        {
            if( oSRS.SetFromUserInput( pszSRSName ) == OGRERR_NONE )
                oSRS.exportToWkt( &pszProjection );
        }
        else if( EQUALN(pszSRSName,"urn:",4) 
                 && strstr(pszSRSName,":def:") != NULL
                 && oSRS.importFromURN(pszSRSName) == OGRERR_NONE )
        {
            const char *pszCode = strrchr(pszSRSName,':') + 1;

            oSRS.exportToWkt( &pszProjection );

            // Per #2131
            if( atoi(pszCode) >= 4000 && atoi(pszCode) <= 4999 )
            {
                CPLDebug( "GMLJP2", "Request axis flip for SRS=%s",
                          pszSRSName );
                bNeedAxisFlip = TRUE;
            }
        }
        else if( !GMLSRSLookup( pszSRSName ) )
        {
            CPLDebug( "GDALJP2Metadata", 
                      "Unable to evaluate SRSName=%s", 
                      pszSRSName );
        }
    }

    if( pszProjection )
        CPLDebug( "GDALJP2Metadata", 
                  "Got projection from GML box: %s", 
                 pszProjection );

    CPLDestroyXMLNode( psXML );
    psXML = NULL;

/* -------------------------------------------------------------------- */
/*      Do we need to flip the axes?                                    */
/* -------------------------------------------------------------------- */
    if( bNeedAxisFlip
        && CSLTestBoolean( CPLGetConfigOption( "GDAL_IGNORE_AXIS_ORIENTATION",
                                               "FALSE" ) ) )
    {
        bNeedAxisFlip = FALSE;
        CPLDebug( "GMLJP2", "Supressed axis flipping based on GDAL_IGNORE_AXIS_ORIENTATION." );
    }

    if( bNeedAxisFlip )
    {
        double dfTemp;

        CPLDebug( "GMLJP2", 
                  "Flipping axis orientation in GMLJP2 coverage description." );

        dfTemp = adfGeoTransform[0];
        adfGeoTransform[0] = adfGeoTransform[3];
        adfGeoTransform[3] = dfTemp;

        dfTemp = adfGeoTransform[1];
        adfGeoTransform[1] = adfGeoTransform[4];
        adfGeoTransform[4] = dfTemp;

        dfTemp = adfGeoTransform[2];
        adfGeoTransform[2] = adfGeoTransform[5];
        adfGeoTransform[5] = dfTemp;
    }

    return pszProjection != NULL && bSuccess;
}
Esempio n. 13
0
int FindSRS( const char *pszInput, OGRSpatialReference &oSRS, int bDebug )

{
    int            bGotSRS = FALSE;
    VSILFILE      *fp = NULL;
    GDALDataset	  *poGDALDS = NULL; 
    OGRDataSource *poOGRDS = NULL;
    OGRLayer      *poLayer = NULL;
    char           *pszProjection = NULL;
    CPLErrorHandler oErrorHandler = NULL;
    int bIsFile = FALSE;
    OGRErr eErr = CE_None;
      
    /* temporarily supress error messages we may get from xOpen() */
    if ( ! bDebug )
        oErrorHandler = CPLSetErrorHandler ( CPLQuietErrorHandler );

    /* Test if argument is a file */
    fp = VSIFOpenL( pszInput, "r" );
    if ( fp )  {
        bIsFile = TRUE;
        VSIFCloseL( fp );
        CPLDebug( "gdalsrsinfo", "argument is a file" );
    } 
       
    /* try to open with GDAL */
    CPLDebug( "gdalsrsinfo", "trying to open with GDAL" );
    poGDALDS = (GDALDataset *) GDALOpen( pszInput, GA_ReadOnly );
    if ( poGDALDS != NULL && poGDALDS->GetProjectionRef( ) != NULL ) {
        pszProjection = (char *) poGDALDS->GetProjectionRef( );
        if( oSRS.importFromWkt( &pszProjection ) == CE_None ) {
            CPLDebug( "gdalsrsinfo", "got SRS from GDAL" );
            bGotSRS = TRUE;
        }
        GDALClose( (GDALDatasetH) poGDALDS );
        if ( ! bGotSRS ) 
            CPLDebug( "gdalsrsinfo", "did not open with GDAL" );
    }    
    
#ifdef OGR_ENABLED
    /* if unsuccessful, try to open with OGR */
    if ( ! bGotSRS ) {
        CPLDebug( "gdalsrsinfo", "trying to open with OGR" );
        poOGRDS = OGRSFDriverRegistrar::Open( pszInput, FALSE, NULL );
        if( poOGRDS != NULL ) {
            poLayer = poOGRDS->GetLayer( 0 );
            if ( poLayer != NULL ) {
                OGRSpatialReference *poSRS = poLayer->GetSpatialRef( );
                if ( poSRS != NULL ) {
                    CPLDebug( "gdalsrsinfo", "got SRS from OGR" );
                    bGotSRS = TRUE;
                    OGRSpatialReference* poSRSClone = poSRS->Clone();
                    oSRS = *poSRSClone;
                    OGRSpatialReference::DestroySpatialReference( poSRSClone );
                }
            }
            OGRDataSource::DestroyDataSource( poOGRDS );
            poOGRDS = NULL;
        } 
        if ( ! bGotSRS ) 
            CPLDebug( "gdalsrsinfo", "did not open with OGR" );
    }
#endif // OGR_ENABLED
    
    /* Try ESRI file */
    if ( ! bGotSRS && bIsFile && (strstr(pszInput,".prj") != NULL) ) {
        CPLDebug( "gdalsrsinfo", 
                  "trying to get SRS from ESRI .prj file [%s]", pszInput );

        char **pszTemp;
        if ( strstr(pszInput,"ESRI::") != NULL )
            pszTemp = CSLLoad( pszInput+6 );
        else 
            pszTemp = CSLLoad( pszInput );

        if( pszTemp ) {
            eErr = oSRS.importFromESRI( pszTemp );
            CSLDestroy( pszTemp );
        }
        else 
            eErr = OGRERR_UNSUPPORTED_SRS;

        if( eErr != OGRERR_NONE ) {
            CPLDebug( "gdalsrsinfo", "did not get SRS from ESRI .prj file" );
        }
        else {
            CPLDebug( "gdalsrsinfo", "got SRS from ESRI .prj file" );
            bGotSRS = TRUE;
        }
    }

    /* Last resort, try OSRSetFromUserInput() */
    if ( ! bGotSRS ) {
        CPLDebug( "gdalsrsinfo", 
                  "trying to get SRS from user input [%s]", pszInput );

        eErr = oSRS.SetFromUserInput( pszInput );
 
       if(  eErr != OGRERR_NONE ) {
            CPLDebug( "gdalsrsinfo", "did not get SRS from user input" );
        }
        else {
            CPLDebug( "gdalsrsinfo", "got SRS from user input" );
            bGotSRS = TRUE;
        }
    }
    
    /* restore error messages */
    if ( ! bDebug )
        CPLSetErrorHandler ( oErrorHandler );	


    return bGotSRS;
}
Esempio n. 14
0
int main( int argc, char ** argv )

{
    int            i;
    int            bGotSRS = FALSE;
    int            bPretty = FALSE;
    int            bOutputAll = FALSE;
    int            bValidate = FALSE;

    const char     *pszInput = NULL;
    const char     *pszOutputType = "all";
    char           *pszOutput = NULL;

    OGRSpatialReference  oSRS;

    VSILFILE      *fp = NULL;
    GDALDataset	  *poGDALDS = NULL;
    OGRDataSource *poOGRDS = NULL;
    OGRLayer      *poLayer = NULL;
    char           *pszProjection = NULL;
    int            bDebug = FALSE;
    CPLErrorHandler oErrorHandler = NULL;
    int bIsFile = FALSE;

    /* Check strict compilation and runtime library version as we use C++ API */
    if (! GDAL_CHECK_VERSION(argv[0]))
        exit(1);

    /* Must process GDAL_SKIP before GDALAllRegister(), but we can't call */
    /* GDALGeneralCmdLineProcessor before it needs the drivers to be registered */
    /* for the --format or --formats options */
    for( i = 1; i < argc; i++ )
    {
        if( EQUAL(argv[i],"--config") && i + 2 < argc && EQUAL(argv[i + 1], "GDAL_SKIP") )
        {
            CPLSetConfigOption( argv[i+1], argv[i+2] );

            i += 2;
        }
    }

    argc = GDALGeneralCmdLineProcessor( argc, &argv, 0 );
    if( argc < 1 )
        exit( -argc );

    /* -------------------------------------------------------------------- */
    /*      Parse arguments.                                                */
    /* -------------------------------------------------------------------- */
    for( i = 1; i < argc; i++ )
    {
        CPLDebug( "gdalsrsinfo", "got arg #%d : [%s]", i, argv[i] );

        if( EQUAL(argv[i], "--utility_version") )
        {
            printf("%s was compiled against GDAL %s and is running against GDAL %s\n",
                   argv[0], GDAL_RELEASE_NAME, GDALVersionInfo("RELEASE_NAME"));
            return 0;
        }
        else if( EQUAL(argv[i], "-h") )
            Usage();
        else if( EQUAL(argv[i], "-o") && i < argc - 1)
            pszOutputType = argv[++i];
        else if( EQUAL(argv[i], "-p") )
            bPretty = TRUE;
        else if( EQUAL(argv[i], "-V") )
            bValidate = TRUE;
        else if( argv[i][0] == '-' )
        {
            CSLDestroy( argv );
            Usage();
        }
        else
            pszInput = argv[i];
    }

    if ( pszInput == NULL ) {
        CSLDestroy( argv );
        Usage();
    }

    /* Register drivers */
    GDALAllRegister();
    OGRRegisterAll();

    /* Search for SRS */

    /* temporarily supress error messages we may get from xOpen() */
    bDebug = CSLTestBoolean(CPLGetConfigOption("CPL_DEBUG", "OFF"));
    if ( ! bDebug )
        oErrorHandler = CPLSetErrorHandler ( CPLQuietErrorHandler );

    /* If argument is a file, try to open it with GDALOpen() and get the projection */
    fp = VSIFOpenL( pszInput, "r" );
    if ( fp )  {

        bIsFile = TRUE;
        VSIFCloseL( fp );

        /* try to open with GDAL */
        CPLDebug( "gdalsrsinfo", "trying to open with GDAL" );
        poGDALDS =  (GDALDataset *) GDALOpen( pszInput, GA_ReadOnly );
        if ( poGDALDS != NULL && poGDALDS->GetProjectionRef( ) != NULL ) {
            pszProjection = (char *) poGDALDS->GetProjectionRef( );
            if( oSRS.importFromWkt( &pszProjection ) == CE_None ) {
                CPLDebug( "gdalsrsinfo", "got SRS from GDAL" );
                bGotSRS = TRUE;
            }
            GDALClose( (GDALDatasetH) poGDALDS );
        }
        if ( ! bGotSRS )
            CPLDebug( "gdalsrsinfo", "did not open with GDAL" );

        /* if unsuccessful, try to open with OGR */
        if ( ! bGotSRS ) {
            CPLDebug( "gdalsrsinfo", "trying to open with OGR" );
            poOGRDS = OGRSFDriverRegistrar::Open( pszInput, FALSE, NULL );
            if( poOGRDS != NULL ) {
                poLayer = poOGRDS->GetLayer( 0 );
                if ( poLayer != NULL ) {
                    OGRSpatialReference *poSRS = poLayer->GetSpatialRef( );
                    if ( poSRS != NULL ) {
                        CPLDebug( "gdalsrsinfo", "got SRS from OGR" );
                        bGotSRS = TRUE;
                        OGRSpatialReference* poSRSClone = poSRS->Clone();
                        oSRS = *poSRSClone;
                        OGRSpatialReference::DestroySpatialReference( poSRSClone );
                    }
                }
                OGRDataSource::DestroyDataSource( poOGRDS );
                poOGRDS = NULL;
            }
            if ( ! bGotSRS )
                CPLDebug( "gdalsrsinfo", "did not open with OGR" );

            /* OGR_DS_Destroy( hOGRDS ); */
        }

    }

    /* If didn't get the projection from the file, try OSRSetFromUserInput() */
    /* File might not be a dataset, but contain projection info (e.g. .prf files) */
    if ( ! bGotSRS ) {
        CPLDebug( "gdalsrsinfo",
                  "trying to get SRS from user input [%s]", pszInput );
        if( oSRS.SetFromUserInput( pszInput ) != OGRERR_NONE ) {
            CPLDebug( "gdalsrsinfo", "did not get SRS from user input" );
        }
        else {
            CPLDebug( "gdalsrsinfo", "got SRS from user input" );
            bGotSRS = TRUE;
        }
    }

    /* restore error messages */
    if ( ! bDebug )
        CPLSetErrorHandler ( oErrorHandler );

    CPLDebug( "gdalsrsinfo",
              "bGotSRS: %d bValidate: %d pszOutputType: %s bPretty: %d",
              bGotSRS, bValidate, pszOutputType, bPretty  );

    /* Make sure we got a SRS */
    if ( ! bGotSRS ) {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "ERROR - failed to load SRS definition from %s",
                  pszInput );
    }

    else {

        /* Validate - not well tested!*/
        if ( bValidate ) {
            OGRErr eErr = oSRS.Validate( );
            if ( eErr != OGRERR_NONE ) {
                printf( "\nValidate Fails" );
                if ( eErr == OGRERR_CORRUPT_DATA )
                    printf( " - SRS is not well formed");
                else if ( eErr == OGRERR_UNSUPPORTED_SRS )
                    printf(" - contains non-standard PROJECTION[] values");
                printf("\n");
            }
            else
                printf( "\nValidate Succeeds\n" );
        }

        /* Output */
        if ( EQUAL("all", pszOutputType ) ) {
            bOutputAll = TRUE;
            bPretty = TRUE;
        }

        printf("\n");

        if ( bOutputAll || EQUAL("proj4", pszOutputType ) ) {
            if ( bOutputAll ) printf("PROJ.4 : ");
            oSRS.exportToProj4( &pszOutput );
            printf("\'%s\'\n\n",pszOutput);
            CPLFree( pszOutput );
        }

        if ( bOutputAll || EQUAL("wkt", pszOutputType ) ) {
            if ( bOutputAll ) printf("OGC WKT :\n");
            if ( bPretty )
                oSRS.exportToPrettyWkt( &pszOutput, FALSE );
            else
                oSRS.exportToWkt( &pszOutput );
            printf("%s\n\n",pszOutput);
            CPLFree( pszOutput );
        }

        if ( bOutputAll || EQUAL("wkt_simple", pszOutputType ) ) {
            if ( bOutputAll ) printf("OGC WKT (simple) :\n");
            oSRS.exportToPrettyWkt( &pszOutput, TRUE );
            printf("%s\n\n",pszOutput);
            CPLFree( pszOutput );
        }

        if ( EQUAL("wkt_old", pszOutputType ) ) {
            if (  bOutputAll ) printf("OGC WKT (old) :\n");
            oSRS.StripCTParms( );
            if ( bPretty )
                oSRS.exportToPrettyWkt( &pszOutput, FALSE );
            else
                oSRS.exportToWkt( &pszOutput );
            printf("%s\n\n",pszOutput);
            CPLFree( pszOutput );
        }

        if ( bOutputAll || EQUAL("wkt_esri", pszOutputType ) ) {
            if ( bOutputAll ) printf("ESRI WKT :\n");
            OGRSpatialReference *poSRS = oSRS.Clone();
            poSRS->morphToESRI( );
            if ( bPretty )
                poSRS->exportToPrettyWkt( &pszOutput, FALSE );
            else
                poSRS->exportToWkt( &pszOutput );
            printf("%s\n\n",pszOutput);
            CPLFree( pszOutput );
            OGRSpatialReference::DestroySpatialReference( poSRS );
        }

        /* mapinfo and xml are not output with "all" */
        if ( EQUAL("mapinfo", pszOutputType ) ) {
            if ( bOutputAll ) printf("MAPINFO : ");
            oSRS.exportToMICoordSys( &pszOutput );
            printf("\'%s\'\n\n",pszOutput);
            CPLFree( pszOutput );
        }

        if ( EQUAL("xml", pszOutputType ) ) {
            if ( bOutputAll ) printf("XML :\n");
            oSRS.exportToXML( &pszOutput, NULL );
            printf("%s\n\n",pszOutput);
            CPLFree( pszOutput );
        }

    }

    /* cleanup anything left */
    GDALDestroyDriverManager();
    OGRCleanupAll();
    CSLDestroy( argv );

    return 0;

}
static int ProxyMain(int argc, char **argv)

{
    GDALDatasetH     hDataset, hOutDS;
    int              i;
    int              nRasterXSize, nRasterYSize;
    const char       *pszSource = NULL, *pszDest = NULL, *pszFormat = "GTiff";
    GDALDriverH      hDriver;
    int              *panBandList = NULL;    /* negative value of panBandList[i] means mask band of ABS(panBandList[i]) */
    int              nBandCount   = 0, bDefBands = TRUE;
    double           adfGeoTransform[6];
    GDALDataType     eOutputType          = GDT_Unknown;
    int              nOXSize              = 0, nOYSize = 0;
    char             *pszOXSize           = NULL, *pszOYSize = NULL;
    char             **papszCreateOptions = NULL;
    int              anSrcWin[4], bStrict = FALSE;
    const char       *pszProjection;
    int              bScale        = FALSE, bHaveScaleSrc = FALSE, bUnscale = FALSE;
    double           dfScaleSrcMin = 0.0, dfScaleSrcMax = 255.0;
    double           dfScaleDstMin = 0.0, dfScaleDstMax = 255.0;
    double           dfULX, dfULY, dfLRX, dfLRY;
    char             **papszMetadataOptions = NULL;
    char             *pszOutputSRS          = NULL;
    int              bQuiet                 = FALSE, bGotBounds = FALSE;
    GDALProgressFunc pfnProgress            = GDALTermProgress;
    int              nGCPCount              = 0;
    GDAL_GCP         *pasGCPs               = NULL;
    int              iSrcFileArg            = -1, iDstFileArg = -1;
    int              bCopySubDatasets       = FALSE;
    double           adfULLR[4]             = { 0, 0, 0, 0 };
    int              bSetNoData             = FALSE;
    int              bUnsetNoData           = FALSE;
    double           dfNoDataReal           = 0.0;
    int              nRGBExpand             = 0;
    int              bParsedMaskArgument    = FALSE;
    int              eMaskMode              = MASK_AUTO;
    int              nMaskBand              = 0; /* negative value means mask band of ABS(nMaskBand) */
    int              bStats                 = FALSE, bApproxStats = FALSE;


    anSrcWin[0] = 0;
    anSrcWin[1] = 0;
    anSrcWin[2] = 0;
    anSrcWin[3] = 0;

    dfULX = dfULY = dfLRX = dfLRY = 0.0;

    /* Check strict compilation and runtime library version as we use C++ API */
    if (!GDAL_CHECK_VERSION(argv[0]))
        exit(1);

    /* Must process GDAL_SKIP before GDALAllRegister(), but we can't call */
    /* GDALGeneralCmdLineProcessor before it needs the drivers to be registered */
    /* for the --format or --formats options */
    for (i = 1; i < argc; i++)
    {
        if (EQUAL(argv[i], "--config") && i + 2 < argc && EQUAL(argv[i + 1], "GDAL_SKIP"))
        {
            CPLSetConfigOption(argv[i + 1], argv[i + 2]);

            i += 2;
        }
    }

/* -------------------------------------------------------------------- */
/*      Register standard GDAL drivers, and process generic GDAL        */
/*      command options.                                                */
/* -------------------------------------------------------------------- */
    GDALAllRegister();
    argc = GDALGeneralCmdLineProcessor(argc, &argv, 0);
    if (argc < 1)
        exit(-argc);

/* -------------------------------------------------------------------- */
/*      Handle command line arguments.                                  */
/* -------------------------------------------------------------------- */
    for (i = 1; i < argc; i++)
    {
        if (EQUAL(argv[i], "--utility_version"))
        {
            printf("%s was compiled against GDAL %s and is running against GDAL %s\n",
                   argv[0], GDAL_RELEASE_NAME, GDALVersionInfo("RELEASE_NAME"));
            return 0;
        }
        else if (EQUAL(argv[i], "-of") && i < argc - 1)
            pszFormat = argv[++i];

        else if (EQUAL(argv[i], "-q") || EQUAL(argv[i], "-quiet"))
        {
            bQuiet      = TRUE;
            pfnProgress = GDALDummyProgress;
        }

        else if (EQUAL(argv[i], "-ot") && i < argc - 1)
        {
            int iType;

            for (iType = 1; iType < GDT_TypeCount; iType++)
            {
                if (GDALGetDataTypeName((GDALDataType)iType) != NULL
                    && EQUAL(GDALGetDataTypeName((GDALDataType)iType),
                             argv[i + 1]))
                {
                    eOutputType = (GDALDataType) iType;
                }
            }

            if (eOutputType == GDT_Unknown)
            {
                printf("Unknown output pixel type: %s\n", argv[i + 1]);
                Usage();
                GDALDestroyDriverManager();
                exit(2);
            }

            i++;
        }
        else if (EQUAL(argv[i], "-b") && i < argc - 1)
        {
            const char *pszBand = argv[i + 1];
            int        bMask    = FALSE;
            if (EQUAL(pszBand, "mask"))
                pszBand = "mask,1";

            if (EQUALN(pszBand, "mask,", 5))
            {
                bMask    = TRUE;
                pszBand += 5;
                /* If we use tha source mask band as a regular band */
                /* don't create a target mask band by default */
                if (!bParsedMaskArgument)
                    eMaskMode = MASK_DISABLED;
            }

            int nBand = atoi(pszBand);
            if (nBand < 1)
            {
                printf("Unrecognizable band number (%s).\n", argv[i + 1]);
                Usage();
                GDALDestroyDriverManager();
                exit(2);
            }

            i++;

            nBandCount++;
            panBandList = (int*)
                          CPLRealloc(panBandList, sizeof(int) * nBandCount);
            panBandList[nBandCount - 1] = nBand;
            if (bMask)
                panBandList[nBandCount - 1] *= -1;

            if (panBandList[nBandCount - 1] != nBandCount)
                bDefBands = FALSE;
        }
        else if (EQUAL(argv[i], "-mask") && i < argc - 1)
        {
            bParsedMaskArgument = TRUE;
            const char *pszBand = argv[i + 1];
            if (EQUAL(pszBand, "none"))
            {
                eMaskMode = MASK_DISABLED;
            }
            else if (EQUAL(pszBand, "auto"))
            {
                eMaskMode = MASK_AUTO;
            }
            else
            {
                int bMask = FALSE;
                if (EQUAL(pszBand, "mask"))
                    pszBand = "mask,1";

                if (EQUALN(pszBand, "mask,", 5))
                {
                    bMask    = TRUE;
                    pszBand += 5;
                }

                int nBand = atoi(pszBand);
                if (nBand < 1)
                {
                    printf("Unrecognizable band number (%s).\n", argv[i + 1]);
                    Usage();
                    GDALDestroyDriverManager();
                    exit(2);
                }

                eMaskMode = MASK_USER;
                nMaskBand = nBand;
                if (bMask)
                    nMaskBand *= -1;
            }

            i++;
        }
        else if (EQUAL(argv[i], "-not_strict"))
            bStrict = FALSE;

        else if (EQUAL(argv[i], "-strict"))
            bStrict = TRUE;

        else if (EQUAL(argv[i], "-sds"))
            bCopySubDatasets = TRUE;

        else if (EQUAL(argv[i], "-gcp") && i < argc - 4)
        {
            char *endptr = NULL;
            /* -gcp pixel line easting northing [elev] */

            nGCPCount++;
            pasGCPs = (GDAL_GCP*)
                      CPLRealloc(pasGCPs, sizeof(GDAL_GCP) * nGCPCount);
            GDALInitGCPs(1, pasGCPs + nGCPCount - 1);

            pasGCPs[nGCPCount - 1].dfGCPPixel = CPLAtofM(argv[++i]);
            pasGCPs[nGCPCount - 1].dfGCPLine  = CPLAtofM(argv[++i]);
            pasGCPs[nGCPCount - 1].dfGCPX     = CPLAtofM(argv[++i]);
            pasGCPs[nGCPCount - 1].dfGCPY     = CPLAtofM(argv[++i]);
            if (argv[i + 1] != NULL
                && (CPLStrtod(argv[i + 1], &endptr) != 0.0 || argv[i + 1][0] == '0'))
            {
                /* Check that last argument is really a number and not a filename */
                /* looking like a number (see ticket #863) */
                if (endptr && *endptr == 0)
                    pasGCPs[nGCPCount - 1].dfGCPZ = CPLAtofM(argv[++i]);
            }

            /* should set id and info? */
        }

        else if (EQUAL(argv[i], "-a_nodata") && i < argc - 1)
        {
            if (EQUAL(argv[i + 1], "none"))
            {
                bUnsetNoData = TRUE;
            }
            else
            {
                bSetNoData   = TRUE;
                dfNoDataReal = CPLAtofM(argv[i + 1]);
            }

            i += 1;
        }

        else if (EQUAL(argv[i], "-a_ullr") && i < argc - 4)
        {
            adfULLR[0] = CPLAtofM(argv[i + 1]);
            adfULLR[1] = CPLAtofM(argv[i + 2]);
            adfULLR[2] = CPLAtofM(argv[i + 3]);
            adfULLR[3] = CPLAtofM(argv[i + 4]);

            bGotBounds = TRUE;

            i += 4;
        }

        else if (EQUAL(argv[i], "-co") && i < argc - 1)
        {
            papszCreateOptions = CSLAddString(papszCreateOptions, argv[++i]);
        }

        else if (EQUAL(argv[i], "-scale"))
        {
            bScale = TRUE;
            if (i < argc - 2 && ArgIsNumeric(argv[i + 1]))
            {
                bHaveScaleSrc = TRUE;
                dfScaleSrcMin = CPLAtofM(argv[i + 1]);
                dfScaleSrcMax = CPLAtofM(argv[i + 2]);
                i            += 2;
            }

            if (i < argc - 2 && bHaveScaleSrc && ArgIsNumeric(argv[i + 1]))
            {
                dfScaleDstMin = CPLAtofM(argv[i + 1]);
                dfScaleDstMax = CPLAtofM(argv[i + 2]);
                i            += 2;
            }
            else
            {
                dfScaleDstMin = 0.0;
                dfScaleDstMax = 255.999;
            }
        }

        else if (EQUAL(argv[i], "-unscale"))
        {
            bUnscale = TRUE;
        }

        else if (EQUAL(argv[i], "-mo") && i < argc - 1)
        {
            papszMetadataOptions = CSLAddString(papszMetadataOptions,
                                                argv[++i]);
        }

        else if (EQUAL(argv[i], "-outsize") && i < argc - 2)
        {
            pszOXSize = argv[++i];
            pszOYSize = argv[++i];
        }

        else if (EQUAL(argv[i], "-srcwin") && i < argc - 4)
        {
            anSrcWin[0] = atoi(argv[++i]);
            anSrcWin[1] = atoi(argv[++i]);
            anSrcWin[2] = atoi(argv[++i]);
            anSrcWin[3] = atoi(argv[++i]);
        }

        else if (EQUAL(argv[i], "-projwin") && i < argc - 4)
        {
            dfULX = CPLAtofM(argv[++i]);
            dfULY = CPLAtofM(argv[++i]);
            dfLRX = CPLAtofM(argv[++i]);
            dfLRY = CPLAtofM(argv[++i]);
        }

        else if (EQUAL(argv[i], "-a_srs") && i < argc - 1)
        {
            OGRSpatialReference oOutputSRS;

            if (oOutputSRS.SetFromUserInput(argv[i + 1]) != OGRERR_NONE)
            {
                fprintf(stderr, "Failed to process SRS definition: %s\n",
                        argv[i + 1]);
                GDALDestroyDriverManager();
                exit(1);
            }

            oOutputSRS.exportToWkt(&pszOutputSRS);
            i++;
        }

        else if (EQUAL(argv[i], "-expand") && i < argc - 1)
        {
            if (EQUAL(argv[i + 1], "gray"))
                nRGBExpand = 1;
            else if (EQUAL(argv[i + 1], "rgb"))
                nRGBExpand = 3;
            else if (EQUAL(argv[i + 1], "rgba"))
                nRGBExpand = 4;
            else
            {
                printf("Value %s unsupported. Only gray, rgb or rgba are supported.\n\n",
                       argv[i]);
                Usage();
                GDALDestroyDriverManager();
                exit(2);
            }

            i++;
        }

        else if (EQUAL(argv[i], "-stats"))
        {
            bStats       = TRUE;
            bApproxStats = FALSE;
        }
        else if (EQUAL(argv[i], "-approx_stats"))
        {
            bStats       = TRUE;
            bApproxStats = TRUE;
        }

        else if (argv[i][0] == '-')
        {
            printf("Option %s incomplete, or not recognised.\n\n",
                   argv[i]);
            Usage();
            GDALDestroyDriverManager();
            exit(2);
        }
        else if (pszSource == NULL)
        {
            iSrcFileArg = i;
            pszSource   = argv[i];
        }
        else if (pszDest == NULL)
        {
            pszDest     = argv[i];
            iDstFileArg = i;
        }

        else
        {
            printf("Too many command options.\n\n");
            Usage();
            GDALDestroyDriverManager();
            exit(2);
        }
    }

    if (pszDest == NULL)
    {
        Usage();
        GDALDestroyDriverManager();
        exit(10);
    }

    if (strcmp(pszSource, pszDest) == 0)
    {
        fprintf(stderr, "Source and destination datasets must be different.\n");
        GDALDestroyDriverManager();
        exit(1);
    }

    if (strcmp(pszDest, "/vsistdout/") == 0)
    {
        bQuiet      = TRUE;
        pfnProgress = GDALDummyProgress;
    }

/* -------------------------------------------------------------------- */
/*      Attempt to open source file.                                    */
/* -------------------------------------------------------------------- */

    hDataset = GDALOpenShared(pszSource, GA_ReadOnly);

    if (hDataset == NULL)
    {
        fprintf(stderr,
                "GDALOpen failed - %d\n%s\n",
                CPLGetLastErrorNo(), CPLGetLastErrorMsg());
        GDALDestroyDriverManager();
        exit(1);
    }

/* -------------------------------------------------------------------- */
/*      Handle subdatasets.                                             */
/* -------------------------------------------------------------------- */
    if (!bCopySubDatasets
        && CSLCount(GDALGetMetadata(hDataset, "SUBDATASETS")) > 0
        && GDALGetRasterCount(hDataset) == 0)
    {
        fprintf(stderr,
                "Input file contains subdatasets. Please, select one of them for reading.\n");
        GDALClose(hDataset);
        GDALDestroyDriverManager();
        exit(1);
    }

    if (CSLCount(GDALGetMetadata(hDataset, "SUBDATASETS")) > 0
        && bCopySubDatasets)
    {
        char **papszSubdatasets = GDALGetMetadata(hDataset, "SUBDATASETS");
        char *pszSubDest        = (char*) CPLMalloc(strlen(pszDest) + 32);
        int  i;
        int  bOldSubCall    = bSubCall;
        char **papszDupArgv = CSLDuplicate(argv);
        int  nRet           = 0;

        CPLFree(papszDupArgv[iDstFileArg]);
        papszDupArgv[iDstFileArg] = pszSubDest;
        bSubCall                  = TRUE;

        for (i = 0; papszSubdatasets[i] != NULL; i += 2)
        {
            CPLFree(papszDupArgv[iSrcFileArg]);
            papszDupArgv[iSrcFileArg] = CPLStrdup(strstr(papszSubdatasets[i], "=") + 1);
            sprintf(pszSubDest, "%s%d", pszDest, i / 2 + 1);
            nRet = ProxyMain(argc, papszDupArgv);
            if (nRet != 0)
                break;
        }

        CSLDestroy(papszDupArgv);

        bSubCall = bOldSubCall;
        CSLDestroy(argv);

        GDALClose(hDataset);

        if (!bSubCall)
        {
            GDALDumpOpenDatasets(stderr);
            GDALDestroyDriverManager();
        }

        return nRet;
    }

/* -------------------------------------------------------------------- */
/*      Collect some information from the source file.                  */
/* -------------------------------------------------------------------- */
    nRasterXSize = GDALGetRasterXSize(hDataset);
    nRasterYSize = GDALGetRasterYSize(hDataset);

    if (!bQuiet)
        printf("Input file size is %d, %d\n", nRasterXSize, nRasterYSize);

    if (anSrcWin[2] == 0 && anSrcWin[3] == 0)
    {
        anSrcWin[2] = nRasterXSize;
        anSrcWin[3] = nRasterYSize;
    }

/* -------------------------------------------------------------------- */
/*      Build band list to translate                                    */
/* -------------------------------------------------------------------- */
    if (nBandCount == 0)
    {
        nBandCount = GDALGetRasterCount(hDataset);
        if (nBandCount == 0)
        {
            fprintf(stderr, "Input file has no bands, and so cannot be translated.\n");
            GDALDestroyDriverManager();
            exit(1);
        }

        panBandList = (int*) CPLMalloc(sizeof(int) * nBandCount);

        for (i = 0; i < nBandCount; i++)
            panBandList[i] = i + 1;
    }
    else
    {
        for (i = 0; i < nBandCount; i++)
        {
            if (ABS(panBandList[i]) > GDALGetRasterCount(hDataset))
            {
                fprintf(stderr,
                        "Band %d requested, but only bands 1 to %d available.\n",
                        ABS(panBandList[i]), GDALGetRasterCount(hDataset));
                GDALDestroyDriverManager();
                exit(2);
            }
        }

        if (nBandCount != GDALGetRasterCount(hDataset))
            bDefBands = FALSE;
    }

/* -------------------------------------------------------------------- */
/*      Compute the source window from the projected source window      */
/*      if the projected coordinates were provided.  Note that the      */
/*      projected coordinates are in ulx, uly, lrx, lry format,         */
/*      while the anSrcWin is xoff, yoff, xsize, ysize with the         */
/*      xoff,yoff being the ulx, uly in pixel/line.                     */
/* -------------------------------------------------------------------- */
    if (dfULX != 0.0 || dfULY != 0.0
        || dfLRX != 0.0 || dfLRY != 0.0)
    {
        double adfGeoTransform[6];

        GDALGetGeoTransform(hDataset, adfGeoTransform);

        if (adfGeoTransform[2] != 0.0 || adfGeoTransform[4] != 0.0)
        {
            fprintf(stderr,
                    "The -projwin option was used, but the geotransform is\n"
                    "rotated.  This configuration is not supported.\n");
            GDALClose(hDataset);
            CPLFree(panBandList);
            GDALDestroyDriverManager();
            exit(1);
        }

        anSrcWin[0] = (int)
                      ((dfULX - adfGeoTransform[0]) / adfGeoTransform[1] + 0.001);
        anSrcWin[1] = (int)
                      ((dfULY - adfGeoTransform[3]) / adfGeoTransform[5] + 0.001);

        anSrcWin[2] = (int) ((dfLRX - dfULX) / adfGeoTransform[1] + 0.5);
        anSrcWin[3] = (int) ((dfLRY - dfULY) / adfGeoTransform[5] + 0.5);

        if (!bQuiet)
            fprintf(stdout,
                    "Computed -srcwin %d %d %d %d from projected window.\n",
                    anSrcWin[0],
                    anSrcWin[1],
                    anSrcWin[2],
                    anSrcWin[3]);

        if (anSrcWin[0] < 0 || anSrcWin[1] < 0
            || anSrcWin[0] + anSrcWin[2] > GDALGetRasterXSize(hDataset)
            || anSrcWin[1] + anSrcWin[3] > GDALGetRasterYSize(hDataset))
        {
            fprintf(stderr,
                    "Computed -srcwin falls outside raster size of %dx%d.\n",
                    GDALGetRasterXSize(hDataset),
                    GDALGetRasterYSize(hDataset));
            exit(1);
        }
    }

/* -------------------------------------------------------------------- */
/*      Verify source window.                                           */
/* -------------------------------------------------------------------- */
    if (anSrcWin[0] < 0 || anSrcWin[1] < 0
        || anSrcWin[2] <= 0 || anSrcWin[3] <= 0
        || anSrcWin[0] + anSrcWin[2] > GDALGetRasterXSize(hDataset)
        || anSrcWin[1] + anSrcWin[3] > GDALGetRasterYSize(hDataset))
    {
        fprintf(stderr,
                "-srcwin %d %d %d %d falls outside raster size of %dx%d\n"
                "or is otherwise illegal.\n",
                anSrcWin[0],
                anSrcWin[1],
                anSrcWin[2],
                anSrcWin[3],
                GDALGetRasterXSize(hDataset),
                GDALGetRasterYSize(hDataset));
        exit(1);
    }

/* -------------------------------------------------------------------- */
/*      Find the output driver.                                         */
/* -------------------------------------------------------------------- */
    hDriver = GDALGetDriverByName(pszFormat);
    if (hDriver == NULL)
    {
        int iDr;

        printf("Output driver `%s' not recognised.\n", pszFormat);
        printf("The following format drivers are configured and support output:\n");

        for (iDr = 0; iDr < GDALGetDriverCount(); iDr++)
        {
            GDALDriverH hDriver = GDALGetDriver(iDr);

            if (GDALGetMetadataItem(hDriver, GDAL_DCAP_CREATE, NULL) != NULL
                || GDALGetMetadataItem(hDriver, GDAL_DCAP_CREATECOPY,
                                       NULL) != NULL)
            {
                printf("  %s: %s\n",
                       GDALGetDriverShortName(hDriver),
                       GDALGetDriverLongName(hDriver));
            }
        }

        printf("\n");
        Usage();

        GDALClose(hDataset);
        CPLFree(panBandList);
        GDALDestroyDriverManager();
        CSLDestroy(argv);
        CSLDestroy(papszCreateOptions);
        exit(1);
    }

/* -------------------------------------------------------------------- */
/*      The short form is to CreateCopy().  We use this if the input    */
/*      matches the whole dataset.  Eventually we should rewrite        */
/*      this entire program to use virtual datasets to construct a      */
/*      virtual input source to copy from.                              */
/* -------------------------------------------------------------------- */


    int bSpatialArrangementPreserved = (
        anSrcWin[0] == 0 && anSrcWin[1] == 0
        && anSrcWin[2] == GDALGetRasterXSize(hDataset)
        && anSrcWin[3] == GDALGetRasterYSize(hDataset)
        && pszOXSize == NULL && pszOYSize == NULL);

    if (eOutputType == GDT_Unknown
        && !bScale && !bUnscale
        && CSLCount(papszMetadataOptions) == 0 && bDefBands
        && eMaskMode == MASK_AUTO
        && bSpatialArrangementPreserved
        && nGCPCount == 0 && !bGotBounds
        && pszOutputSRS == NULL && !bSetNoData && !bUnsetNoData
        && nRGBExpand == 0 && !bStats)
    {
        hOutDS = GDALCreateCopy(hDriver, pszDest, hDataset,
                                bStrict, papszCreateOptions,
                                pfnProgress, NULL);

        if (hOutDS != NULL)
            GDALClose(hOutDS);

        GDALClose(hDataset);

        CPLFree(panBandList);

        if (!bSubCall)
        {
            GDALDumpOpenDatasets(stderr);
            GDALDestroyDriverManager();
        }

        CSLDestroy(argv);
        CSLDestroy(papszCreateOptions);

        return hOutDS == NULL;
    }

/* -------------------------------------------------------------------- */
/*      Establish some parameters.                                      */
/* -------------------------------------------------------------------- */
    if (pszOXSize == NULL)
    {
        nOXSize = anSrcWin[2];
        nOYSize = anSrcWin[3];
    }
    else
    {
        nOXSize = (int) ((pszOXSize[strlen(pszOXSize) - 1] == '%'
                          ? CPLAtofM(pszOXSize) / 100 * anSrcWin[2] : atoi(pszOXSize)));
        nOYSize = (int) ((pszOYSize[strlen(pszOYSize) - 1] == '%'
                          ? CPLAtofM(pszOYSize) / 100 * anSrcWin[3] : atoi(pszOYSize)));
    }

/* ==================================================================== */
/*      Create a virtual dataset.                                       */
/* ==================================================================== */
    VRTDataset *poVDS;

/* -------------------------------------------------------------------- */
/*      Make a virtual clone.                                           */
/* -------------------------------------------------------------------- */
    poVDS = (VRTDataset*) VRTCreate(nOXSize, nOYSize);

    if (nGCPCount == 0)
    {
        if (pszOutputSRS != NULL)
        {
            poVDS->SetProjection(pszOutputSRS);
        }
        else
        {
            pszProjection = GDALGetProjectionRef(hDataset);
            if (pszProjection != NULL && strlen(pszProjection) > 0)
                poVDS->SetProjection(pszProjection);
        }
    }

    if (bGotBounds)
    {
        adfGeoTransform[0] = adfULLR[0];
        adfGeoTransform[1] = (adfULLR[2] - adfULLR[0]) / nOXSize;
        adfGeoTransform[2] = 0.0;
        adfGeoTransform[3] = adfULLR[1];
        adfGeoTransform[4] = 0.0;
        adfGeoTransform[5] = (adfULLR[3] - adfULLR[1]) / nOYSize;

        poVDS->SetGeoTransform(adfGeoTransform);
    }

    else if (GDALGetGeoTransform(hDataset, adfGeoTransform) == CE_None
             && nGCPCount == 0)
    {
        adfGeoTransform[0] += anSrcWin[0] * adfGeoTransform[1]
                              + anSrcWin[1] * adfGeoTransform[2];
        adfGeoTransform[3] += anSrcWin[0] * adfGeoTransform[4]
                              + anSrcWin[1] * adfGeoTransform[5];

        adfGeoTransform[1] *= anSrcWin[2] / (double) nOXSize;
        adfGeoTransform[2] *= anSrcWin[3] / (double) nOYSize;
        adfGeoTransform[4] *= anSrcWin[2] / (double) nOXSize;
        adfGeoTransform[5] *= anSrcWin[3] / (double) nOYSize;

        poVDS->SetGeoTransform(adfGeoTransform);
    }

    if (nGCPCount != 0)
    {
        const char *pszGCPProjection = pszOutputSRS;

        if (pszGCPProjection == NULL)
            pszGCPProjection = GDALGetGCPProjection(hDataset);

        if (pszGCPProjection == NULL)
            pszGCPProjection = "";

        poVDS->SetGCPs(nGCPCount, pasGCPs, pszGCPProjection);

        GDALDeinitGCPs(nGCPCount, pasGCPs);
        CPLFree(pasGCPs);
    }

    else if (GDALGetGCPCount(hDataset) > 0)
    {
        GDAL_GCP *pasGCPs;
        int      nGCPs = GDALGetGCPCount(hDataset);

        pasGCPs = GDALDuplicateGCPs(nGCPs, GDALGetGCPs(hDataset));

        for (i = 0; i < nGCPs; i++)
        {
            pasGCPs[i].dfGCPPixel -= anSrcWin[0];
            pasGCPs[i].dfGCPLine  -= anSrcWin[1];
            pasGCPs[i].dfGCPPixel *= (nOXSize / (double) anSrcWin[2]);
            pasGCPs[i].dfGCPLine  *= (nOYSize / (double) anSrcWin[3]);
        }

        poVDS->SetGCPs(nGCPs, pasGCPs,
                       GDALGetGCPProjection(hDataset));

        GDALDeinitGCPs(nGCPs, pasGCPs);
        CPLFree(pasGCPs);
    }

/* -------------------------------------------------------------------- */
/*      Transfer generally applicable metadata.                         */
/* -------------------------------------------------------------------- */
    poVDS->SetMetadata(((GDALDataset*)hDataset)->GetMetadata());
    AttachMetadata((GDALDatasetH) poVDS, papszMetadataOptions);

    const char *pszInterleave = GDALGetMetadataItem(hDataset, "INTERLEAVE", "IMAGE_STRUCTURE");
    if (pszInterleave)
        poVDS->SetMetadataItem("INTERLEAVE", pszInterleave, "IMAGE_STRUCTURE");

/* -------------------------------------------------------------------- */
/*      Transfer metadata that remains valid if the spatial             */
/*      arrangement of the data is unaltered.                           */
/* -------------------------------------------------------------------- */
    if (bSpatialArrangementPreserved)
    {
        char **papszMD;

        papszMD = ((GDALDataset*)hDataset)->GetMetadata("RPC");
        if (papszMD != NULL)
            poVDS->SetMetadata(papszMD, "RPC");

        papszMD = ((GDALDataset*)hDataset)->GetMetadata("GEOLOCATION");
        if (papszMD != NULL)
            poVDS->SetMetadata(papszMD, "GEOLOCATION");
    }

    int nSrcBandCount = nBandCount;

    if (nRGBExpand != 0)
    {
        GDALRasterBand *poSrcBand;
        poSrcBand = ((GDALDataset*)
                     hDataset)->GetRasterBand(ABS(panBandList[0]));
        if (panBandList[0] < 0)
            poSrcBand = poSrcBand->GetMaskBand();

        GDALColorTable *poColorTable = poSrcBand->GetColorTable();
        if (poColorTable == NULL)
        {
            fprintf(stderr, "Error : band %d has no color table\n", ABS(panBandList[0]));
            GDALClose(hDataset);
            CPLFree(panBandList);
            GDALDestroyDriverManager();
            CSLDestroy(argv);
            CSLDestroy(papszCreateOptions);
            exit(1);
        }

        /* Check that the color table only contains gray levels */
        /* when using -expand gray */
        if (nRGBExpand == 1)
        {
            int nColorCount = poColorTable->GetColorEntryCount();
            int nColor;

            for (nColor = 0; nColor < nColorCount; nColor++)
            {
                const GDALColorEntry *poEntry = poColorTable->GetColorEntry(nColor);
                if (poEntry->c1 != poEntry->c2 || poEntry->c1 != poEntry->c2)
                {
                    fprintf(stderr, "Warning : color table contains non gray levels colors\n");
                    break;
                }
            }
        }

        if (nBandCount == 1)
            nBandCount = nRGBExpand;
        else if (nBandCount == 2 && (nRGBExpand == 3 || nRGBExpand == 4))
            nBandCount = nRGBExpand;
        else
        {
            fprintf(stderr, "Error : invalid use of -expand option.\n");
            exit(1);
        }
    }

    int bFilterOutStatsMetadata =
        (bScale || bUnscale || !bSpatialArrangementPreserved || nRGBExpand != 0);

/* ==================================================================== */
/*      Process all bands.                                              */
/* ==================================================================== */
    for (i = 0; i < nBandCount; i++)
    {
        VRTSourcedRasterBand *poVRTBand;
        GDALRasterBand       *poSrcBand;
        GDALDataType         eBandType;
        int                  nComponent = 0;

        int nSrcBand;
        if (nRGBExpand != 0)
        {
            if (nSrcBandCount == 2 && nRGBExpand == 4 && i == 3)
                nSrcBand = panBandList[1];
            else
            {
                nSrcBand   = panBandList[0];
                nComponent = i + 1;
            }
        }
        else
            nSrcBand = panBandList[i];

        poSrcBand = ((GDALDataset*) hDataset)->GetRasterBand(ABS(nSrcBand));

/* -------------------------------------------------------------------- */
/*      Select output data type to match source.                        */
/* -------------------------------------------------------------------- */
        if (eOutputType == GDT_Unknown)
            eBandType = poSrcBand->GetRasterDataType();
        else
            eBandType = eOutputType;

/* -------------------------------------------------------------------- */
/*      Create this band.                                               */
/* -------------------------------------------------------------------- */
        poVDS->AddBand(eBandType, NULL);
        poVRTBand = (VRTSourcedRasterBand*) poVDS->GetRasterBand(i + 1);
        if (nSrcBand < 0)
        {
            poVRTBand->AddMaskBandSource(poSrcBand);
            continue;
        }

/* -------------------------------------------------------------------- */
/*      Do we need to collect scaling information?                      */
/* -------------------------------------------------------------------- */
        double dfScale = 1.0, dfOffset = 0.0;

        if (bScale && !bHaveScaleSrc)
        {
            double adfCMinMax[2];
            GDALComputeRasterMinMax(poSrcBand, TRUE, adfCMinMax);
            dfScaleSrcMin = adfCMinMax[0];
            dfScaleSrcMax = adfCMinMax[1];
        }

        if (bScale)
        {
            if (dfScaleSrcMax == dfScaleSrcMin)
                dfScaleSrcMax += 0.1;

            if (dfScaleDstMax == dfScaleDstMin)
                dfScaleDstMax += 0.1;

            dfScale = (dfScaleDstMax - dfScaleDstMin)
                      / (dfScaleSrcMax - dfScaleSrcMin);
            dfOffset = -1 * dfScaleSrcMin * dfScale + dfScaleDstMin;
        }

        if (bUnscale)
        {
            dfScale  = poSrcBand->GetScale();
            dfOffset = poSrcBand->GetOffset();
        }

/* -------------------------------------------------------------------- */
/*      Create a simple or complex data source depending on the         */
/*      translation type required.                                      */
/* -------------------------------------------------------------------- */
        if (bUnscale || bScale || (nRGBExpand != 0 && i < nRGBExpand))
        {
            poVRTBand->AddComplexSource(poSrcBand,
                                        anSrcWin[0], anSrcWin[1],
                                        anSrcWin[2], anSrcWin[3],
                                        0, 0, nOXSize, nOYSize,
                                        dfOffset, dfScale,
                                        VRT_NODATA_UNSET,
                                        nComponent);
        }
        else
            poVRTBand->AddSimpleSource(poSrcBand,
                                       anSrcWin[0], anSrcWin[1],
                                       anSrcWin[2], anSrcWin[3],
                                       0, 0, nOXSize, nOYSize);

/* -------------------------------------------------------------------- */
/*      In case of color table translate, we only set the color         */
/*      interpretation other info copied by CopyBandInfo are            */
/*      not relevant in RGB expansion.                                  */
/* -------------------------------------------------------------------- */
        if (nRGBExpand == 1)
        {
            poVRTBand->SetColorInterpretation(GCI_GrayIndex);
        }
        else if (nRGBExpand != 0 && i < nRGBExpand)
        {
            poVRTBand->SetColorInterpretation((GDALColorInterp) (GCI_RedBand + i));
        }

/* -------------------------------------------------------------------- */
/*      copy over some other information of interest.                   */
/* -------------------------------------------------------------------- */
        else
        {
            CopyBandInfo(poSrcBand, poVRTBand,
                         !bStats && !bFilterOutStatsMetadata,
                         !bUnscale,
                         !bSetNoData && !bUnsetNoData);
        }

/* -------------------------------------------------------------------- */
/*      Set a forcable nodata value?                                    */
/* -------------------------------------------------------------------- */
        if (bSetNoData)
        {
            double dfVal    = dfNoDataReal;
            int    bClamped = FALSE, bRounded = FALSE;

#define CLAMP(val, type, minval, maxval)                                          \
    do { if (val < minval) { bClamped = TRUE; val = minval;                       \
         }                                                                        \
         else if (val > maxval) { bClamped = TRUE; val = maxval; }                \
         else if (val != (type)val) { bRounded = TRUE; val = (type)(val + 0.5); } \
    }                                                                             \
    while (0)

            switch (eBandType)
            {
            case GDT_Byte:
                CLAMP(dfVal, GByte, 0.0, 255.0);
                break;

            case GDT_Int16:
                CLAMP(dfVal, GInt16, -32768.0, 32767.0);
                break;

            case GDT_UInt16:
                CLAMP(dfVal, GUInt16, 0.0, 65535.0);
                break;

            case GDT_Int32:
                CLAMP(dfVal, GInt32, -2147483648.0, 2147483647.0);
                break;

            case GDT_UInt32:
                CLAMP(dfVal, GUInt32, 0.0, 4294967295.0);
                break;

            default:
                break;
            }

            if (bClamped)
            {
                printf("for band %d, nodata value has been clamped "
                       "to %.0f, the original value being out of range.\n",
                       i + 1, dfVal);
            }
            else if (bRounded)
            {
                printf("for band %d, nodata value has been rounded "
                       "to %.0f, %s being an integer datatype.\n",
                       i + 1, dfVal,
                       GDALGetDataTypeName(eBandType));
            }

            poVRTBand->SetNoDataValue(dfVal);
        }

        if (eMaskMode == MASK_AUTO &&
            (GDALGetMaskFlags(GDALGetRasterBand(hDataset, 1)) & GMF_PER_DATASET) == 0 &&
            (poSrcBand->GetMaskFlags() & (GMF_ALL_VALID | GMF_NODATA)) == 0)
        {
            if (poVRTBand->CreateMaskBand(poSrcBand->GetMaskFlags()) == CE_None)
            {
                VRTSourcedRasterBand *hMaskVRTBand =
                    (VRTSourcedRasterBand*)poVRTBand->GetMaskBand();
                hMaskVRTBand->AddMaskBandSource(poSrcBand,
                                                anSrcWin[0], anSrcWin[1],
                                                anSrcWin[2], anSrcWin[3],
                                                0, 0, nOXSize, nOYSize);
            }
        }
    }

    if (eMaskMode == MASK_USER)
    {
        GDALRasterBand *poSrcBand =
            (GDALRasterBand*)GDALGetRasterBand(hDataset, ABS(nMaskBand));
        if (poSrcBand && poVDS->CreateMaskBand(GMF_PER_DATASET) == CE_None)
        {
            VRTSourcedRasterBand *hMaskVRTBand = (VRTSourcedRasterBand*)
                                                 GDALGetMaskBand(GDALGetRasterBand((GDALDatasetH)poVDS, 1));
            if (nMaskBand > 0)
                hMaskVRTBand->AddSimpleSource(poSrcBand,
                                              anSrcWin[0], anSrcWin[1],
                                              anSrcWin[2], anSrcWin[3],
                                              0, 0, nOXSize, nOYSize);
            else
                hMaskVRTBand->AddMaskBandSource(poSrcBand,
                                                anSrcWin[0], anSrcWin[1],
                                                anSrcWin[2], anSrcWin[3],
                                                0, 0, nOXSize, nOYSize);
        }
    }
    else if (eMaskMode == MASK_AUTO && nSrcBandCount > 0 &&
             GDALGetMaskFlags(GDALGetRasterBand(hDataset, 1)) == GMF_PER_DATASET)
    {
        if (poVDS->CreateMaskBand(GMF_PER_DATASET) == CE_None)
        {
            VRTSourcedRasterBand *hMaskVRTBand = (VRTSourcedRasterBand*)
                                                 GDALGetMaskBand(GDALGetRasterBand((GDALDatasetH)poVDS, 1));
            hMaskVRTBand->AddMaskBandSource((GDALRasterBand*)GDALGetRasterBand(hDataset, 1),
                                            anSrcWin[0], anSrcWin[1],
                                            anSrcWin[2], anSrcWin[3],
                                            0, 0, nOXSize, nOYSize);
        }
    }

/* -------------------------------------------------------------------- */
/*      Compute stats if required.                                      */
/* -------------------------------------------------------------------- */
    if (bStats)
    {
        for (i = 0; i < poVDS->GetRasterCount(); i++)
        {
            double dfMin, dfMax, dfMean, dfStdDev;
            poVDS->GetRasterBand(i + 1)->ComputeStatistics(bApproxStats,
                                                           &dfMin, &dfMax, &dfMean, &dfStdDev, GDALDummyProgress, NULL);
        }
    }

/* -------------------------------------------------------------------- */
/*      Write to the output file using CopyCreate().                    */
/* -------------------------------------------------------------------- */
    hOutDS = GDALCreateCopy(hDriver, pszDest, (GDALDatasetH) poVDS,
                            bStrict, papszCreateOptions,
                            pfnProgress, NULL);
    if (hOutDS != NULL)
    {
        int bHasGotErr = FALSE;
        CPLErrorReset();
        GDALFlushCache(hOutDS);
        if (CPLGetLastErrorType() != CE_None)
            bHasGotErr = TRUE;

        GDALClose(hOutDS);
        if (bHasGotErr)
            hOutDS = NULL;
    }

    GDALClose((GDALDatasetH) poVDS);

    GDALClose(hDataset);

    CPLFree(panBandList);

    CPLFree(pszOutputSRS);

    if (!bSubCall)
    {
        GDALDumpOpenDatasets(stderr);
        GDALDestroyDriverManager();
    }

    CSLDestroy(argv);
    CSLDestroy(papszCreateOptions);

    return hOutDS == NULL;
}
Esempio n. 16
0
CPLErr GDALPamDataset::XMLInit( CPLXMLNode *psTree, const char *pszVRTPath )

{
/* -------------------------------------------------------------------- */
/*      Check for an SRS node.                                          */
/* -------------------------------------------------------------------- */
    if( strlen(CPLGetXMLValue(psTree, "SRS", "")) > 0 )
    {
        OGRSpatialReference oSRS;

        CPLFree( psPam->pszProjection );
        psPam->pszProjection = NULL;

        if( oSRS.SetFromUserInput( CPLGetXMLValue(psTree, "SRS", "") )
            == OGRERR_NONE )
            oSRS.exportToWkt( &(psPam->pszProjection) );
    }

/* -------------------------------------------------------------------- */
/*      Check for a GeoTransform node.                                  */
/* -------------------------------------------------------------------- */
    if( strlen(CPLGetXMLValue(psTree, "GeoTransform", "")) > 0 )
    {
        const char *pszGT = CPLGetXMLValue(psTree, "GeoTransform", "");
        char	**papszTokens;

        papszTokens = CSLTokenizeStringComplex( pszGT, ",", FALSE, FALSE );
        if( CSLCount(papszTokens) != 6 )
        {
            CPLError( CE_Warning, CPLE_AppDefined,
                      "GeoTransform node does not have expected six values.");
        }
        else
        {
            for( int iTA = 0; iTA < 6; iTA++ )
                psPam->adfGeoTransform[iTA] = atof(papszTokens[iTA]);
            psPam->bHaveGeoTransform = TRUE;
        }

        CSLDestroy( papszTokens );
    }

/* -------------------------------------------------------------------- */
/*      Check for GCPs.                                                 */
/* -------------------------------------------------------------------- */
    CPLXMLNode *psGCPList = CPLGetXMLNode( psTree, "GCPList" );

    if( psGCPList != NULL )
    {
        CPLXMLNode *psXMLGCP;
        OGRSpatialReference oSRS;
        const char *pszRawProj = CPLGetXMLValue(psGCPList, "Projection", "");

        CPLFree( psPam->pszGCPProjection );

        if( strlen(pszRawProj) > 0 
            && oSRS.SetFromUserInput( pszRawProj ) == OGRERR_NONE )
            oSRS.exportToWkt( &(psPam->pszGCPProjection) );
        else
            psPam->pszGCPProjection = CPLStrdup("");

        // Count GCPs.
        int  nGCPMax = 0;
         
        for( psXMLGCP = psGCPList->psChild; psXMLGCP != NULL; 
             psXMLGCP = psXMLGCP->psNext )
            nGCPMax++;
         
        psPam->pasGCPList = (GDAL_GCP *) CPLCalloc(sizeof(GDAL_GCP),nGCPMax);
         
        for( psXMLGCP = psGCPList->psChild; psXMLGCP != NULL; 
             psXMLGCP = psXMLGCP->psNext )
        {
            GDAL_GCP *psGCP = psPam->pasGCPList + psPam->nGCPCount;

            if( !EQUAL(psXMLGCP->pszValue,"GCP") || 
                psXMLGCP->eType != CXT_Element )
                continue;
             
            GDALInitGCPs( 1, psGCP );
             
            CPLFree( psGCP->pszId );
            psGCP->pszId = CPLStrdup(CPLGetXMLValue(psXMLGCP,"Id",""));
             
            CPLFree( psGCP->pszInfo );
            psGCP->pszInfo = CPLStrdup(CPLGetXMLValue(psXMLGCP,"Info",""));
             
            psGCP->dfGCPPixel = atof(CPLGetXMLValue(psXMLGCP,"Pixel","0.0"));
            psGCP->dfGCPLine = atof(CPLGetXMLValue(psXMLGCP,"Line","0.0"));
             
            psGCP->dfGCPX = atof(CPLGetXMLValue(psXMLGCP,"X","0.0"));
            psGCP->dfGCPY = atof(CPLGetXMLValue(psXMLGCP,"Y","0.0"));
            psGCP->dfGCPZ = atof(CPLGetXMLValue(psXMLGCP,"Z","0.0"));

            psPam->nGCPCount++;
        }
    }

/* -------------------------------------------------------------------- */
/*      Apply any dataset level metadata.                               */
/* -------------------------------------------------------------------- */
    oMDMD.XMLInit( psTree, TRUE );

/* -------------------------------------------------------------------- */
/*      Process bands.                                                  */
/* -------------------------------------------------------------------- */
    CPLXMLNode *psBandTree;

    for( psBandTree = psTree->psChild; 
         psBandTree != NULL; psBandTree = psBandTree->psNext )
    {
        if( psBandTree->eType != CXT_Element
            || !EQUAL(psBandTree->pszValue,"PAMRasterBand") )
            continue;

        int nBand = atoi(CPLGetXMLValue( psBandTree, "band", "0"));

        if( nBand < 1 || nBand > GetRasterCount() )
            continue;

        GDALPamRasterBand *poBand = (GDALPamRasterBand *)
            GetRasterBand(nBand);

        if( poBand == NULL || !(poBand->GetMOFlags() & GMO_PAM_CLASS) )
            continue;

        poBand->XMLInit( psBandTree, pszVRTPath );
    }

/* -------------------------------------------------------------------- */
/*      Clear dirty flag.                                               */
/* -------------------------------------------------------------------- */
    nPamFlags &= ~GPF_DIRTY;

    return CE_None;
}
Esempio n. 17
0
OGRSpatialReference* OGRGeoJSONReadSpatialReference( json_object* poObj) {
    
/* -------------------------------------------------------------------- */
/*      Read spatial reference definition.                              */
/* -------------------------------------------------------------------- */
    OGRSpatialReference* poSRS = NULL;

    json_object* poObjSrs = OGRGeoJSONFindMemberByName( poObj, "crs" );
    if( NULL != poObjSrs )
    {
        json_object* poObjSrsType = OGRGeoJSONFindMemberByName( poObjSrs, "type" );
        if (poObjSrsType == NULL)
            return NULL;

        const char* pszSrsType = json_object_get_string( poObjSrsType );

        // TODO: Add URL and URN types support
        if( EQUALN( pszSrsType, "NAME", 4 ) )
        {
            json_object* poObjSrsProps = OGRGeoJSONFindMemberByName( poObjSrs, "properties" );
            if (poObjSrsProps == NULL)
                return NULL;

            json_object* poNameURL = OGRGeoJSONFindMemberByName( poObjSrsProps, "name" );
            if (poNameURL == NULL)
                return NULL;

            const char* pszName = json_object_get_string( poNameURL );

            poSRS = new OGRSpatialReference();
            if( OGRERR_NONE != poSRS->SetFromUserInput( pszName ) )
            {
                delete poSRS;
                poSRS = NULL;
            }
        }

        if( EQUALN( pszSrsType, "EPSG", 4 ) )
        {
            json_object* poObjSrsProps = OGRGeoJSONFindMemberByName( poObjSrs, "properties" );
            if (poObjSrsProps == NULL)
                return NULL;

            json_object* poObjCode = OGRGeoJSONFindMemberByName( poObjSrsProps, "code" );
            if (poObjCode == NULL)
                return NULL;

            int nEPSG = json_object_get_int( poObjCode );

            poSRS = new OGRSpatialReference();
            if( OGRERR_NONE != poSRS->importFromEPSG( nEPSG ) )
            {
                delete poSRS;
                poSRS = NULL;
            }
        }

        if( EQUALN( pszSrsType, "URL", 3 ) || EQUALN( pszSrsType, "LINK", 4 )  )
        {
            json_object* poObjSrsProps = OGRGeoJSONFindMemberByName( poObjSrs, "properties" );
            if (poObjSrsProps == NULL)
                return NULL;

            json_object* poObjURL = OGRGeoJSONFindMemberByName( poObjSrsProps, "url" );
            
            if (NULL == poObjURL) {
                poObjURL = OGRGeoJSONFindMemberByName( poObjSrsProps, "href" );
            }
            if (poObjURL == NULL)
                return NULL;

            const char* pszURL = json_object_get_string( poObjURL );

            poSRS = new OGRSpatialReference();
            if( OGRERR_NONE != poSRS->importFromUrl( pszURL ) )
            {
                delete poSRS;
                poSRS = NULL;

            }
        }


        if( EQUAL( pszSrsType, "OGC" ) )
        {
            json_object* poObjSrsProps = OGRGeoJSONFindMemberByName( poObjSrs, "properties" );
            if (poObjSrsProps == NULL)
                return NULL;

            json_object* poObjURN = OGRGeoJSONFindMemberByName( poObjSrsProps, "urn" );
            if (poObjURN == NULL)
                return NULL;

            poSRS = new OGRSpatialReference();
            if( OGRERR_NONE != poSRS->importFromURN( json_object_get_string(poObjURN) ) )
            {
                delete poSRS;
                poSRS = NULL;
            }
        }
    }
    
    return poSRS;
}
Esempio n. 18
0
CPLErr GNMFileNetwork::Create( const char* pszFilename, char** papszOptions )
{
    // check required options

    // check name
    const char* pszNetworkName = CSLFetchNameValue(papszOptions, GNM_MD_NAME);

    if( NULL == pszNetworkName )
    {
        CPLError( CE_Failure, CPLE_IllegalArg,
                  "The network name should be present" );
        return CE_Failure;
    }
    else
    {
        m_soName = pszNetworkName;
    }

    const char* pszNetworkDescription = CSLFetchNameValue(papszOptions,
                                                         GNM_MD_DESCR);
    if(NULL != pszNetworkDescription)
        sDescription = pszNetworkDescription;

    // check Spatial reference
    const char* pszSRS = CSLFetchNameValue(papszOptions, GNM_MD_SRS);
    if( NULL == pszSRS )
    {
        CPLError( CE_Failure, CPLE_IllegalArg,
                  "The network spatial reference should be present" );
        return CE_Failure;
    }
    else
    {
        OGRSpatialReference spatialRef;
        if (spatialRef.SetFromUserInput(pszSRS) != OGRERR_NONE)
        {
            CPLError( CE_Failure, CPLE_IllegalArg,
                      "The network spatial reference should be present" );
            return CE_Failure;
        }

        char *wktSrs = NULL;
        if (spatialRef.exportToWkt(&wktSrs) != OGRERR_NONE)
        {
            CPLError( CE_Failure, CPLE_IllegalArg,
                      "The network spatial reference should be present" );
            return CE_Failure;
        }
        m_soSRS = wktSrs;

        CPLFree(wktSrs);
    }

    int nResult = CheckNetworkExist(pszFilename, papszOptions);

    if(TRUE == nResult)
    {
        CPLError( CE_Failure, CPLE_IllegalArg, "The network already exist" );
        return CE_Failure;
    }

    // Create the necessary system layers and fields

    // Create meta layer

    CPLErr eResult = CreateMetadataLayerFromFile(pszFilename, GNM_VERSION_NUM, papszOptions);

    if(CE_None != eResult)
    {
        //an error message should come from function
        return CE_Failure;
    }

    // Create graph layer

    eResult = CreateGraphLayerFromFile(pszFilename, papszOptions);

    if(CE_None != eResult)
    {
        DeleteMetadataLayer();
        return CE_Failure;
    }

    // Create features layer

    eResult = CreateFeaturesLayerFromFile(pszFilename, papszOptions);

    if(CE_None != eResult)
    {
        DeleteMetadataLayer();
        DeleteGraphLayer();
        return CE_Failure;
    }

    return CE_None;
}
Esempio n. 19
0
CPLErr GNMDatabaseNetwork::Create( const char* pszFilename, char** papszOptions )
{
    FormName(pszFilename, papszOptions);

    if(m_soName.empty() || m_soNetworkFullName.empty())
    {
        CPLError( CE_Failure, CPLE_IllegalArg,
                  "The network name should be present" );
        return CE_Failure;
    }

    if(NULL == m_poDS)
    {
        m_poDS = (GDALDataset*) GDALOpenEx( m_soNetworkFullName, GDAL_OF_VECTOR |
                                       GDAL_OF_UPDATE, NULL, NULL, papszOptions );
    }

    if( NULL == m_poDS )
    {
        CPLError( CE_Failure, CPLE_OpenFailed, "Open '%s' failed",
                  m_soNetworkFullName.c_str() );
        return CE_Failure;
    }

    GDALDriver *l_poDriver = m_poDS->GetDriver();
    if(NULL == l_poDriver)
    {
        CPLError( CE_Failure, CPLE_OpenFailed, "Get dataset driver failed");
        return CE_Failure;
    }

    if(!CheckStorageDriverSupport(l_poDriver->GetDescription()))
    {
        return CE_Failure;
    }

    // check required options

    const char* pszNetworkDescription = CSLFetchNameValue(papszOptions,
                                                         GNM_MD_DESCR);
    if(NULL != pszNetworkDescription)
        sDescription = pszNetworkDescription;

    // check Spatial reference
    const char* pszSRS = CSLFetchNameValue(papszOptions, GNM_MD_SRS);
    if( NULL == pszSRS )
    {
        CPLError( CE_Failure, CPLE_IllegalArg,
                  "The network spatial reference should be present" );
        return CE_Failure;
    }
    else
    {
        OGRSpatialReference spatialRef;
        if (spatialRef.SetFromUserInput(pszSRS) != OGRERR_NONE)
        {
            CPLError( CE_Failure, CPLE_IllegalArg,
                      "The network spatial reference should be present" );
            return CE_Failure;
        }

        char *wktSrs = NULL;
        if (spatialRef.exportToWkt(&wktSrs) != OGRERR_NONE)
        {
            CPLError( CE_Failure, CPLE_IllegalArg,
                      "The network spatial reference should be present" );
            return CE_Failure;
        }
        m_soSRS = wktSrs;

        CPLFree(wktSrs);
    }

    int nResult = CheckNetworkExist(pszFilename, papszOptions);

    if(TRUE == nResult)
    {
        CPLError( CE_Failure, CPLE_IllegalArg, "The network already exist" );
        return CE_Failure;
    }

    // Create the necessary system layers and fields

    // Create meta layer

    CPLErr eResult = CreateMetadataLayer(m_poDS, GNM_VERSION_NUM);

    if(CE_None != eResult)
    {
        //an error message should come from function
        return CE_Failure;    }

    // Create graph layer

    eResult = CreateGraphLayer(m_poDS);

    if(CE_None != eResult)
    {
        DeleteMetadataLayer();
        return CE_Failure;
    }

    // Create features layer

    eResult = CreateFeaturesLayer(m_poDS);

    if(CE_None != eResult)
    {
        DeleteMetadataLayer();
        DeleteGraphLayer();
        return CE_Failure;
    }

    return CE_None;
}
CPLErr GDALParseGMLCoverage( CPLXMLNode *psXML, 
                             int *pnXSize, int *pnYSize,
                             double *padfGeoTransform,
                             char **ppszProjection )

{
    CPLStripXMLNamespace( psXML, NULL, TRUE );

/* -------------------------------------------------------------------- */
/*      Isolate RectifiedGrid.  Eventually we will need to support      */
/*      other georeferencing objects.                                   */
/* -------------------------------------------------------------------- */
    CPLXMLNode *psRG = CPLSearchXMLNode( psXML, "=RectifiedGrid" );
    CPLXMLNode *psOriginPoint = NULL;
    const char *pszOffset1=NULL, *pszOffset2=NULL;

    if( psRG != NULL )
    {
        psOriginPoint = CPLGetXMLNode( psRG, "origin.Point" );
        if( psOriginPoint == NULL )
            psOriginPoint = CPLGetXMLNode( psRG, "origin" );

        CPLXMLNode *psOffset1 = CPLGetXMLNode( psRG, "offsetVector" );
        if( psOffset1 != NULL )
        {
            pszOffset1 = CPLGetXMLValue( psOffset1, "", NULL );
            pszOffset2 = CPLGetXMLValue( psOffset1->psNext, "=offsetVector", 
                                         NULL );
        }
    }

/* -------------------------------------------------------------------- */
/*      If we are missing any of the origin or 2 offsets then give up.  */
/* -------------------------------------------------------------------- */
    if( psRG == NULL || psOriginPoint == NULL 
        || pszOffset1 == NULL || pszOffset2 == NULL )
    {
        CPLError( CE_Failure, CPLE_AppDefined,
                  "Unable to find GML RectifiedGrid, origin or offset vectors");
        return CE_Failure;
    }

/* -------------------------------------------------------------------- */
/*      Search for the GridEnvelope and derive the raster size.         */
/* -------------------------------------------------------------------- */
    char **papszLow = CSLTokenizeString(
        CPLGetXMLValue( psRG, "limits.GridEnvelope.low", ""));
    char **papszHigh = CSLTokenizeString(
        CPLGetXMLValue( psRG, "limits.GridEnvelope.high",""));

    if( CSLCount(papszLow) < 2 || CSLCount(papszHigh) < 2 )
    {
        CPLError( CE_Failure, CPLE_AppDefined, 
                  "Unable to find or parse GridEnvelope.low/high." );
        return CE_Failure;
    }        

    if( pnXSize != NULL )
        *pnXSize = atoi(papszHigh[0]) - atoi(papszLow[0]) + 1;
    if( pnYSize != NULL )
        *pnYSize = atoi(papszHigh[1]) - atoi(papszLow[1]) + 1;

    CSLDestroy( papszLow );
    CSLDestroy( papszHigh );

/* -------------------------------------------------------------------- */
/*      Extract origin location.                                        */
/* -------------------------------------------------------------------- */
    OGRPoint *poOriginGeometry = NULL;
    const char *pszSRSName = NULL;

    if( psOriginPoint != NULL )
    {
        int bOldWrap = FALSE;

        // old coverages (ie. WCS) just have <pos> under <origin> so we
        // may need to temporarily force <origin> to <Point>
        if( psOriginPoint->eType == CXT_Element
            && EQUAL(psOriginPoint->pszValue,"origin") )
        {
            strcpy( psOriginPoint->pszValue, "Point");
            bOldWrap = TRUE;
        }
        poOriginGeometry = (OGRPoint *) 
            OGR_G_CreateFromGMLTree( psOriginPoint );

        if( poOriginGeometry != NULL 
            && wkbFlatten(poOriginGeometry->getGeometryType()) != wkbPoint )
        {
            delete poOriginGeometry;
            poOriginGeometry = NULL;
        }

        if( bOldWrap )
            strcpy( psOriginPoint->pszValue, "origin");

        // SRS?
        pszSRSName = CPLGetXMLValue( psOriginPoint, "srsName", NULL );
    }

/* -------------------------------------------------------------------- */
/*      Extract offset(s)                                               */
/* -------------------------------------------------------------------- */
    char **papszOffset1Tokens = NULL;
    char **papszOffset2Tokens = NULL;
    int bSuccess = FALSE;

    papszOffset1Tokens = 
        CSLTokenizeStringComplex( pszOffset1, " ,", FALSE, FALSE );
    papszOffset2Tokens = 
        CSLTokenizeStringComplex( pszOffset2, " ,", FALSE, FALSE );

    if( CSLCount(papszOffset1Tokens) >= 2
        && CSLCount(papszOffset2Tokens) >= 2
        && poOriginGeometry != NULL )
    {
        padfGeoTransform[0] = poOriginGeometry->getX();
        padfGeoTransform[1] = atof(papszOffset1Tokens[0]);
        padfGeoTransform[2] = atof(papszOffset1Tokens[1]);
        padfGeoTransform[3] = poOriginGeometry->getY();
        padfGeoTransform[4] = atof(papszOffset2Tokens[0]);
        padfGeoTransform[5] = atof(papszOffset2Tokens[1]);

        // offset from center of pixel.
        padfGeoTransform[0] -= padfGeoTransform[1]*0.5;
        padfGeoTransform[0] -= padfGeoTransform[2]*0.5;
        padfGeoTransform[3] -= padfGeoTransform[4]*0.5;
        padfGeoTransform[3] -= padfGeoTransform[5]*0.5;

        bSuccess = TRUE;
        //bHaveGeoTransform = TRUE;
    }

    CSLDestroy( papszOffset1Tokens );
    CSLDestroy( papszOffset2Tokens );

    if( poOriginGeometry != NULL )
        delete poOriginGeometry;

/* -------------------------------------------------------------------- */
/*      If we have gotten a geotransform, then try to interprete the    */
/*      srsName.                                                        */
/* -------------------------------------------------------------------- */
    if( bSuccess && pszSRSName != NULL 
        && (*ppszProjection == NULL || strlen(*ppszProjection) == 0) )
    {
        if( EQUALN(pszSRSName,"epsg:",5) )
        {
            OGRSpatialReference oSRS;
            if( oSRS.SetFromUserInput( pszSRSName ) == OGRERR_NONE )
                oSRS.exportToWkt( ppszProjection );
        }
        else if( EQUALN(pszSRSName,"urn:ogc:def:crs:",16) )
        {
            OGRSpatialReference oSRS;
            if( oSRS.importFromURN( pszSRSName ) == OGRERR_NONE )
                oSRS.exportToWkt( ppszProjection );
        }
        else
            *ppszProjection = CPLStrdup(pszSRSName);
    }

    if( *ppszProjection )
        CPLDebug( "GDALJP2Metadata", 
                  "Got projection from GML box: %s", 
                  *ppszProjection );

    return CE_None;
}
Esempio n. 21
0
int FindSRS( const char *pszInput, OGRSpatialReference &oSRS )

{
    int            bGotSRS = FALSE;
    VSILFILE      *fp = NULL;
    GDALDataset	  *poGDALDS = NULL; 
    OGRLayer      *poLayer = NULL;
    const char    *pszProjection = NULL;
    CPLErrorHandler oErrorHandler = NULL;
    int bIsFile = FALSE;
    OGRErr eErr = OGRERR_NONE;
    int bDebug  = FALSE;

    /* temporarily suppress error messages we may get from xOpen() */
    bDebug = CSLTestBoolean(CPLGetConfigOption("CPL_DEBUG", "OFF"));
    if ( ! bDebug )
        oErrorHandler = CPLSetErrorHandler ( CPLQuietErrorHandler );

    /* Test if argument is a file */
    fp = VSIFOpenL( pszInput, "r" );
    if ( fp )  {
        bIsFile = TRUE;
        VSIFCloseL( fp );
        CPLDebug( "gdalsrsinfo", "argument is a file" );
    } 
       
    /* try to open with GDAL */
    if( strncmp(pszInput, "http://spatialreference.org/",
                strlen("http://spatialreference.org/")) != 0 )
    {
        CPLDebug( "gdalsrsinfo", "trying to open with GDAL" );
        poGDALDS = (GDALDataset *) GDALOpenEx( pszInput, 0, NULL, NULL, NULL );
    }
    if ( poGDALDS != NULL ) {
        pszProjection = poGDALDS->GetProjectionRef( );
        if( pszProjection != NULL && pszProjection[0] != '\0' )
        {
            char* pszProjectionTmp = (char*) pszProjection;
            if( oSRS.importFromWkt( &pszProjectionTmp ) == OGRERR_NONE ) {
                CPLDebug( "gdalsrsinfo", "got SRS from GDAL" );
                bGotSRS = TRUE;
            }
        }
        else if( poGDALDS->GetLayerCount() > 0 )
        {
            poLayer = poGDALDS->GetLayer( 0 );
            if ( poLayer != NULL ) {
                OGRSpatialReference *poSRS = poLayer->GetSpatialRef( );
                if ( poSRS != NULL ) {
                    CPLDebug( "gdalsrsinfo", "got SRS from OGR" );
                    bGotSRS = TRUE;
                    OGRSpatialReference* poSRSClone = poSRS->Clone();
                    oSRS = *poSRSClone;
                    OGRSpatialReference::DestroySpatialReference( poSRSClone );
                }
            }
        }
        GDALClose( (GDALDatasetH) poGDALDS );
        if ( ! bGotSRS ) 
            CPLDebug( "gdalsrsinfo", "did not open with GDAL" );
    }    
    
    /* Try ESRI file */
    if ( ! bGotSRS && bIsFile && (strstr(pszInput,".prj") != NULL) ) {
        CPLDebug( "gdalsrsinfo", 
                  "trying to get SRS from ESRI .prj file [%s]", pszInput );

        char **pszTemp;
        if ( strstr(pszInput,"ESRI::") != NULL )
            pszTemp = CSLLoad( pszInput+6 );
        else 
            pszTemp = CSLLoad( pszInput );

        if( pszTemp ) {
            eErr = oSRS.importFromESRI( pszTemp );
            CSLDestroy( pszTemp );
        }
        else 
            eErr = OGRERR_UNSUPPORTED_SRS;

        if( eErr != OGRERR_NONE ) {
            CPLDebug( "gdalsrsinfo", "did not get SRS from ESRI .prj file" );
        }
        else {
            CPLDebug( "gdalsrsinfo", "got SRS from ESRI .prj file" );
            bGotSRS = TRUE;
        }
    }

    /* Last resort, try OSRSetFromUserInput() */
    if ( ! bGotSRS ) {
        CPLDebug( "gdalsrsinfo", 
                  "trying to get SRS from user input [%s]", pszInput );

        eErr = oSRS.SetFromUserInput( pszInput );
 
       if(  eErr != OGRERR_NONE ) {
            CPLDebug( "gdalsrsinfo", "did not get SRS from user input" );
        }
        else {
            CPLDebug( "gdalsrsinfo", "got SRS from user input" );
            bGotSRS = TRUE;
        }
    }
    
    /* restore error messages */
    if ( ! bDebug )
        CPLSetErrorHandler ( oErrorHandler );	


    return bGotSRS;
}
Esempio n. 22
0
GDALDataset *DIMAPDataset::Open( GDALOpenInfo * poOpenInfo )

{
    if( !Identify( poOpenInfo ) )
        return NULL;
        
/* -------------------------------------------------------------------- */
/*      Confirm the requested access is supported.                      */
/* -------------------------------------------------------------------- */
    if( poOpenInfo->eAccess == GA_Update )
    {
        CPLError( CE_Failure, CPLE_NotSupported, 
                  "The DIMAP driver does not support update access to existing"
                  " datasets.\n" );
        return NULL;
    }
/* -------------------------------------------------------------------- */
/*      Get the metadata filename.                                      */
/* -------------------------------------------------------------------- */
    CPLString osMDFilename;

    if( poOpenInfo->bIsDirectory )
    {
        osMDFilename = 
            CPLFormCIFilename( poOpenInfo->pszFilename, "METADATA.DIM", NULL );
    }
    else
        osMDFilename = poOpenInfo->pszFilename;

/* -------------------------------------------------------------------- */
/*      Ingest the xml file.                                            */
/* -------------------------------------------------------------------- */
    CPLXMLNode *psProduct, *psImageAttributes;

    psProduct = CPLParseXMLFile( osMDFilename );
    if( psProduct == NULL )
        return NULL;

    CPLXMLNode *psDoc = CPLGetXMLNode( psProduct, "=Dimap_Document" );
    psImageAttributes = CPLGetXMLNode( psDoc, "Raster_Dimensions" );
    if( psImageAttributes == NULL )
    {
        CPLError( CE_Failure, CPLE_OpenFailed, 
                  "Failed to find <Raster_Dimensions> in document." );
        return NULL;
    }


/* -------------------------------------------------------------------- */
/*      Create the dataset.                                             */
/* -------------------------------------------------------------------- */
    DIMAPDataset *poDS = new DIMAPDataset();

    poDS->psProduct = psProduct;

/* -------------------------------------------------------------------- */
/*      Get overall image information.                                  */
/* -------------------------------------------------------------------- */
#ifdef DEBUG
    int nBands = 
        atoi(CPLGetXMLValue( psImageAttributes, "NBANDS", "-1" ));
#endif

    poDS->nRasterXSize = 
        atoi(CPLGetXMLValue( psImageAttributes, "NCOLS", "-1" ));
    poDS->nRasterYSize = 
        atoi(CPLGetXMLValue( psImageAttributes, "NROWS", "-1" ));

/* -------------------------------------------------------------------- */
/*      Get the name of the underlying file.                            */
/* -------------------------------------------------------------------- */
    const char *pszHref = CPLGetXMLValue(
        psDoc, "Data_Access.Data_File.DATA_FILE_PATH.href", "" );
    CPLString osPath = CPLGetPath(osMDFilename);
    CPLString osImageFilename = 
        CPLFormFilename( osPath, pszHref, NULL );
                                   
/* -------------------------------------------------------------------- */
/*      Try and open the file.                                          */
/* -------------------------------------------------------------------- */
    poDS->poImageDS = (GDALDataset *) GDALOpen( osImageFilename, GA_ReadOnly );
    if( poDS->poImageDS == NULL )
    {
        delete poDS;
        return NULL;
    }
        
/* -------------------------------------------------------------------- */
/*      Attach the bands.                                               */
/* -------------------------------------------------------------------- */
    int iBand;
    CPLAssert( nBands == poDS->poImageDS->GetRasterCount() );

    for( iBand = 1; iBand <= poDS->poImageDS->GetRasterCount(); iBand++ )
        poDS->SetBand( iBand, poDS->poImageDS->GetRasterBand( iBand ) );

/* -------------------------------------------------------------------- */
/*      Try to collect simple insertion point.                          */
/* -------------------------------------------------------------------- */
    CPLXMLNode *psGeoLoc =  
        CPLGetXMLNode( psDoc, "Geoposition.Geoposition_Insert" );

    if( psGeoLoc != NULL )
    {
        poDS->bHaveGeoTransform = TRUE;
        poDS->adfGeoTransform[0] = atof(CPLGetXMLValue(psGeoLoc,"ULXMAP","0"));
        poDS->adfGeoTransform[1] = atof(CPLGetXMLValue(psGeoLoc,"XDIM","0"));
        poDS->adfGeoTransform[2] = 0.0;
        poDS->adfGeoTransform[3] = atof(CPLGetXMLValue(psGeoLoc,"ULYMAP","0"));
        poDS->adfGeoTransform[4] = 0.0;
        poDS->adfGeoTransform[5] = -atof(CPLGetXMLValue(psGeoLoc,"YDIM","0"));
    }

/* -------------------------------------------------------------------- */
/*      Collect GCPs.                                                   */
/* -------------------------------------------------------------------- */
    psGeoLoc = CPLGetXMLNode( psDoc, "Geoposition.Geoposition_Points" );

    if( psGeoLoc != NULL )
    {
        CPLXMLNode *psNode;					       

        // count gcps.
        poDS->nGCPCount = 0;
        for( psNode = psGeoLoc->psChild; psNode != NULL;
             psNode = psNode->psNext )
        {
            if( EQUAL(psNode->pszValue,"Tie_Point") )
                poDS->nGCPCount++ ;
        }

        poDS->pasGCPList = (GDAL_GCP *) 
            CPLCalloc(sizeof(GDAL_GCP),poDS->nGCPCount);
        
        poDS->nGCPCount = 0;
        
        for( psNode = psGeoLoc->psChild; psNode != NULL;
             psNode = psNode->psNext )
        {
            char	szID[32];
            GDAL_GCP   *psGCP = poDS->pasGCPList + poDS->nGCPCount;
            
            if( !EQUAL(psNode->pszValue,"Tie_Point") )
                continue;

            poDS->nGCPCount++ ;

            sprintf( szID, "%d", poDS->nGCPCount );
            psGCP->pszId = CPLStrdup( szID );
            psGCP->pszInfo = CPLStrdup("");
            psGCP->dfGCPPixel = 
                atof(CPLGetXMLValue(psNode,"TIE_POINT_DATA_X","0"))-0.5;
            psGCP->dfGCPLine = 
                atof(CPLGetXMLValue(psNode,"TIE_POINT_DATA_Y","0"))-0.5;
            psGCP->dfGCPX = 
                atof(CPLGetXMLValue(psNode,"TIE_POINT_CRS_X",""));
            psGCP->dfGCPY = 
                atof(CPLGetXMLValue(psNode,"TIE_POINT_CRS_Y",""));
            psGCP->dfGCPZ = 
                atof(CPLGetXMLValue(psNode,"TIE_POINT_CRS_Z",""));
        }
    }

/* -------------------------------------------------------------------- */
/*      Collect the CRS.  For now we look only for EPSG codes.          */
/* -------------------------------------------------------------------- */
    const char *pszSRS = CPLGetXMLValue( 
        psDoc, 
        "Coordinate_Reference_System.Horizontal_CS.HORIZONTAL_CS_CODE", 
        NULL );

    if( pszSRS != NULL )
    {
        OGRSpatialReference oSRS;
        if( oSRS.SetFromUserInput( pszSRS ) == OGRERR_NONE )
        {
            if( poDS->nGCPCount > 0 )
            {
                CPLFree(poDS->pszGCPProjection);
                oSRS.exportToWkt( &(poDS->pszGCPProjection) );
            }
            else
            {
                char *pszProjection = NULL;
                oSRS.exportToWkt( &pszProjection );
                poDS->osProjection = pszProjection;
                CPLFree( pszProjection );
            }
        }
    }

/* -------------------------------------------------------------------- */
/*      Translate other metadata of interest.                           */
/* -------------------------------------------------------------------- */
    static const char *apszMetadataTranslation[] = 
        {
            "Production", "", 
            "Production.Facility", "FACILITY_", 
            "Dataset_Sources.Source_Information.Scene_Source", "",
            "Data_Processing", "",
            "Image_Interpretation.Spectral_Band_Info", "SPECTRAL_", 
            NULL, NULL
        };

    int iTrItem;
    
    for( iTrItem = 0; apszMetadataTranslation[iTrItem] != NULL; iTrItem += 2 )
    {
        CPLXMLNode *psParent = 
            CPLGetXMLNode( psDoc, apszMetadataTranslation[iTrItem] );

        if( psParent == NULL )
            continue;

        // hackey logic to support directly access a name/value entry
        // or a parent element with many name/values. 

        CPLXMLNode *psTarget;
        if( psParent->psChild != NULL 
            && psParent->psChild->eType == CXT_Text )
            psTarget = psParent;
        else
            psTarget = psParent->psChild;

        for( ; psTarget != NULL && psTarget != psParent; 
             psTarget = psTarget->psNext ) 
        {
            if( psTarget->eType == CXT_Element
                && psTarget->psChild != NULL
                && psTarget->psChild->eType == CXT_Text )
            {
                CPLString osName = apszMetadataTranslation[iTrItem+1];

                osName += psTarget->pszValue;
                poDS->SetMetadataItem( osName, psTarget->psChild->pszValue );
            }
        }
    }

/* -------------------------------------------------------------------- */
/*      Set Band metadata from the <Spectral_Band_Info> content         */
/* -------------------------------------------------------------------- */

    CPLXMLNode *psImageInterpretationNode = 
            CPLGetXMLNode( psDoc, "Image_Interpretation" );
    if (psImageInterpretationNode != NULL)
    {
        CPLXMLNode *psSpectralBandInfoNode = psImageInterpretationNode->psChild;
        while (psSpectralBandInfoNode != NULL)
        {
            if (psSpectralBandInfoNode->eType == CXT_Element &&
                EQUAL(psSpectralBandInfoNode->pszValue, "Spectral_Band_Info"))
            {
                CPLXMLNode *psTag = psSpectralBandInfoNode->psChild;
                int nBandIndex = 0;
                while(psTag != NULL)
                {
                    if (psTag->eType == CXT_Element && psTag->psChild != NULL &&
                        psTag->psChild->eType == CXT_Text && psTag->pszValue != NULL)
                    {
                        if (EQUAL(psTag->pszValue, "BAND_INDEX"))
                        {
                            nBandIndex = atoi(psTag->psChild->pszValue);
                            if (nBandIndex <= 0 ||
                                nBandIndex > poDS->poImageDS->GetRasterCount())
                            {
                                CPLError(CE_Warning, CPLE_AppDefined,
                                         "Bad BAND_INDEX value : %s", psTag->psChild->pszValue);
                                nBandIndex = 0;
                            }
                        }
                        else if (nBandIndex >= 1)
                        {
                            poDS->GetRasterBand(nBandIndex)->SetMetadataItem(
                                    psTag->pszValue, psTag->psChild->pszValue);
                        }
                    }
                    psTag = psTag->psNext;
                }
            }
            psSpectralBandInfoNode = psSpectralBandInfoNode->psNext;
        }
    }

/* -------------------------------------------------------------------- */
/*      Initialize any PAM information.                                 */
/* -------------------------------------------------------------------- */
    poDS->SetDescription( osMDFilename );
    poDS->TryLoadXML();

/* -------------------------------------------------------------------- */
/*      Check for overviews.                                            */
/* -------------------------------------------------------------------- */
    poDS->oOvManager.Initialize( poDS, osMDFilename );

    return( poDS );
}
Esempio n. 23
0
/** Apply a vertical shift grid to a source (DEM typically) dataset.
 * 
 * hGridDataset will typically use WGS84 as horizontal datum (but this is
 * not a requirement) and its values are the values to add to go from geoid
 * elevations to WGS84 ellipsoidal heights.
 * 
 * hGridDataset will be on-the-fly reprojected and resampled to the projection
 * and resolution of hSrcDataset, using bilinear resampling by default.
 * 
 * Both hSrcDataset and hGridDataset must be single band datasets, and have
 * a valid geotransform and projection.
 *
 * On success, a reference will be taken on hSrcDataset and hGridDataset.
 * Reference counting semantics on the source and grid datasets should be
 * honoured. That is, don't just GDALClose() it, unless it was opened with
 * GDALOpenShared(), but rather use GDALReleaseDataset() if wanting to
 * immediately release the reference(s) and make the returned dataset the
 * owner of them.
 *
 * Valid use cases:
 * 
 * \code
 * hSrcDataset = GDALOpen(...)
 * hGridDataset = GDALOpen(...)
 * hDstDataset = GDALApplyVerticalShiftGrid(hSrcDataset, hGridDataset, ...)
 * GDALReleaseDataset(hSrcDataset);
 * GDALReleaseDataset(hGridDataset);
 * if( hDstDataset )
 * {
 *     // Do things with hDstDataset 
 *     GDALClose(hDstDataset) // will close hSrcDataset and hGridDataset
 * }
 * \endcode

 *
 * @param hSrcDataset source (DEM) dataset. Must not be NULL.
 * @param hGridDataset vertical grid shift dataset. Must not be NULL.
 * @param bInverse if set to FALSE, hGridDataset values will be added to
 *                 hSrcDataset. If set to TRUE, they will be subtracted.
 * @param dfSrcUnitToMeter the factor to convert values from hSrcDataset to
 *                         meters (1.0 if source values are in meter).
 * @param dfDstUnitToMeter the factor to convert shifted values from meter
 *                          (1.0 if output values must be in meter).
 * @param papszOptions list of options, or NULL. Supported options are:
 * <ul>
 * <li>RESAMPLING=NEAREST/BILINEAR/CUBIC. Defaults to BILINEAR.</li>
 * <li>MAX_ERROR=val. Maximum error measured in input pixels that is allowed in
 * approximating the transformation (0.0 for exact calculations). Defaults
 * to 0.125</li>
 * <li>DATATYPE=Byte/UInt16/Int16/Float32/Float64. Output data type. If not
 * specified will be the same as the one of hSrcDataset.
 * <li>ERROR_ON_MISSING_VERT_SHIFT=YES/NO. Whether a missing/nodata value in
 * hGridDataset should cause I/O requests to fail. Default is NO (in which case
 * 0 will be used)
 * <li>SRC_SRS=srs_def. Override projection on hSrcDataset;
 * </ul>
 *
 * @return a new dataset corresponding to hSrcDataset adjusted with
 * hGridDataset, or NULL. If not NULL, it must be closed with GDALClose().
 *
 * @since GDAL 2.2
 */
GDALDatasetH GDALApplyVerticalShiftGrid( GDALDatasetH hSrcDataset,
                                         GDALDatasetH hGridDataset,
                                         int bInverse,
                                         double dfSrcUnitToMeter,
                                         double dfDstUnitToMeter,
                                         const char* const* papszOptions )
{
    VALIDATE_POINTER1( hSrcDataset, "GDALApplyVerticalShiftGrid", nullptr );
    VALIDATE_POINTER1( hGridDataset, "GDALApplyVerticalShiftGrid", nullptr );

    double adfSrcGT[6];
    if( GDALGetGeoTransform(hSrcDataset, adfSrcGT) != CE_None )
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "Source dataset has no geotransform.");
        return nullptr;
    }
    const char* pszSrcProjection = CSLFetchNameValueDef(papszOptions,
                                            "SRC_SRS",
                                            GDALGetProjectionRef(hSrcDataset));
    if( pszSrcProjection == nullptr || pszSrcProjection[0] == '\0' )
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "Source dataset has no projection.");
        return nullptr;
    }
    if(  GDALGetRasterCount(hSrcDataset) != 1 )
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "Only single band source dataset is supported.");
        return nullptr;
    }

    double adfGridGT[6];
    if( GDALGetGeoTransform(hGridDataset, adfGridGT) != CE_None )
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "Grid dataset has no geotransform.");
        return nullptr;
    }
    const char* pszGridProjection = GDALGetProjectionRef(hGridDataset);
    if( pszGridProjection == nullptr || pszGridProjection[0] == '\0' )
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "Grid dataset has no projection.");
        return nullptr;
    }
    if(  GDALGetRasterCount(hGridDataset) != 1 )
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "Only single band grid dataset is supported.");
        return nullptr;
    }

    GDALDataType eDT = GDALGetRasterDataType(GDALGetRasterBand(hSrcDataset,1));
    const char* pszDataType = CSLFetchNameValue(papszOptions, "DATATYPE");
    if( pszDataType )
        eDT = GDALGetDataTypeByName(pszDataType);
    if( eDT == GDT_Unknown )
    {
        CPLError(CE_Failure, CPLE_NotSupported,
                 "Invalid DATATYPE=%s", pszDataType);
        return nullptr;
    }

    const int nSrcXSize = GDALGetRasterXSize(hSrcDataset);
    const int nSrcYSize = GDALGetRasterYSize(hSrcDataset);

    OGRSpatialReference oSRS;
    CPLString osSrcProjection(pszSrcProjection);
    oSRS.SetFromUserInput(osSrcProjection);
    if( oSRS.IsCompound() )
    {
        OGR_SRSNode* poNode = oSRS.GetRoot()->GetChild(1);
        if( poNode != nullptr )
        {
            char* pszWKT = nullptr;
            poNode->exportToWkt(&pszWKT);
            osSrcProjection = pszWKT;
            CPLFree(pszWKT);
        }
    }

    void* hTransform = GDALCreateGenImgProjTransformer3( pszGridProjection,
                                                         adfGridGT,
                                                         osSrcProjection,
                                                         adfSrcGT );
    if( hTransform == nullptr )
        return nullptr;
    GDALWarpOptions* psWO = GDALCreateWarpOptions();
    psWO->hSrcDS = hGridDataset;
    psWO->eResampleAlg = GRA_Bilinear;
    const char* pszResampling = CSLFetchNameValue(papszOptions, "RESAMPLING");
    if( pszResampling )
    {
        if( EQUAL(pszResampling, "NEAREST") )
            psWO->eResampleAlg = GRA_NearestNeighbour;
        else if( EQUAL(pszResampling, "BILINEAR") )
            psWO->eResampleAlg = GRA_Bilinear;
        else if( EQUAL(pszResampling, "CUBIC") )
            psWO->eResampleAlg = GRA_Cubic;
    }
    psWO->eWorkingDataType = GDT_Float32;
    int bHasNoData = FALSE;
    const double dfSrcNoData = GDALGetRasterNoDataValue(
        GDALGetRasterBand(hGridDataset, 1), &bHasNoData );
    if( bHasNoData )
    {
        psWO->padfSrcNoDataReal =
                static_cast<double*>(CPLMalloc(sizeof(double)));
        psWO->padfSrcNoDataReal[0] = dfSrcNoData;
    }

    psWO->padfDstNoDataReal = static_cast<double*>(CPLMalloc(sizeof(double)));
    const bool bErrorOnMissingShift = CPLFetchBool( papszOptions,
                                              "ERROR_ON_MISSING_VERT_SHIFT",
                                              false );
    psWO->padfDstNoDataReal[0] = 
        (bErrorOnMissingShift) ? -std::numeric_limits<float>::infinity() : 0.0;
    psWO->papszWarpOptions = CSLSetNameValue(psWO->papszWarpOptions,
                                                 "INIT_DEST",
                                                 "NO_DATA");

    psWO->pfnTransformer = GDALGenImgProjTransform;
    psWO->pTransformerArg = hTransform;
    const double dfMaxError = CPLAtof(CSLFetchNameValueDef(papszOptions,
                                                           "MAX_ERROR",
                                                           "0.125"));
    if( dfMaxError > 0.0 )
    {
        psWO->pTransformerArg =
            GDALCreateApproxTransformer( psWO->pfnTransformer,
                                         psWO->pTransformerArg,
                                         dfMaxError );
        psWO->pfnTransformer = GDALApproxTransform;
        GDALApproxTransformerOwnsSubtransformer(psWO->pTransformerArg, TRUE);
    }
    psWO->nBandCount = 1;
    psWO->panSrcBands = static_cast<int *>(CPLMalloc(sizeof(int)));
    psWO->panSrcBands[0] = 1;
    psWO->panDstBands = static_cast<int *>(CPLMalloc(sizeof(int)));
    psWO->panDstBands[0] = 1;

    VRTWarpedDataset* poReprojectedGrid =
                new VRTWarpedDataset(nSrcXSize, nSrcYSize);
    // This takes a reference on hGridDataset
    CPLErr eErr = poReprojectedGrid->Initialize(psWO);
    CPLAssert(eErr == CE_None);
    CPL_IGNORE_RET_VAL(eErr);
    GDALDestroyWarpOptions(psWO);
    poReprojectedGrid->SetGeoTransform(adfSrcGT);
    poReprojectedGrid->AddBand(GDT_Float32, nullptr);

    GDALApplyVSGDataset* poOutDS = new GDALApplyVSGDataset(
        reinterpret_cast<GDALDataset*>(hSrcDataset),
        poReprojectedGrid,
        eDT,
        CPL_TO_BOOL(bInverse),
        dfSrcUnitToMeter,
        dfDstUnitToMeter,
        // Undocumented option. For testing only
        atoi(CSLFetchNameValueDef(papszOptions, "BLOCKSIZE", "256")) );

    poReprojectedGrid->ReleaseRef();

    if( !poOutDS->IsInitOK() )
    {
        delete poOutDS;
        return nullptr;
    }
    poOutDS->SetDescription( GDALGetDescription( hSrcDataset ) );
    return reinterpret_cast<GDALDatasetH>(poOutDS);
}