Example #1
0
static void RWriteString( VSILFILE *fp, int bASCII, const char *pszValue )

{
    RWriteInteger(fp, bASCII, 4105);
    RWriteInteger(fp, bASCII, static_cast<int>(strlen(pszValue)));

    if( bASCII )
    {
        VSIFWriteL(pszValue, 1, strlen(pszValue), fp);
        VSIFWriteL("\n", 1, 1, fp);
    }
    else
    {
        VSIFWriteL(pszValue, 1, static_cast<int>(strlen(pszValue)), fp);
    }
}
Example #2
0
GDALDataset *
RCreateCopy( const char * pszFilename,
             GDALDataset *poSrcDS,
             CPL_UNUSED int bStrict,
             char ** papszOptions,
             GDALProgressFunc pfnProgress,
             void * pProgressData )
{
    const int nBands = poSrcDS->GetRasterCount();
    const int nXSize = poSrcDS->GetRasterXSize();
    const int nYSize = poSrcDS->GetRasterYSize();
    const bool bASCII = CPLFetchBool(papszOptions, "ASCII", false);
    const bool bCompressed = CPLFetchBool(papszOptions, "COMPRESS", !bASCII);

    // Some some rudimentary checks.

    // Setup the filename to actually use.  We prefix with
    // /vsigzip/ if we want compressed output.
    const CPLString osAdjustedFilename =
        std::string(bCompressed ? "/vsigzip/" : "") + pszFilename;

    // Create the file.
    VSILFILE *fp = VSIFOpenL(osAdjustedFilename, "wb");
    if( fp == NULL )
    {
        CPLError(CE_Failure, CPLE_OpenFailed,
                 "Unable to create file %s.",
                 pszFilename);
        return NULL;
    }

    // Write header with version, etc.
    if( bASCII )
    {
        const char *pszHeader = "RDA2\nA\n";
        VSIFWriteL(pszHeader, 1, strlen(pszHeader), fp);
    }
    else
    {
        const char *pszHeader = "RDX2\nX\n";
        VSIFWriteL(pszHeader, 1, strlen(pszHeader), fp);
    }

    RWriteInteger(fp, bASCII, 2);
    RWriteInteger(fp, bASCII, 133377);
    RWriteInteger(fp, bASCII, 131840);

    // Establish the primary pairlist with one component object.
    RWriteInteger(fp, bASCII, 1026);
    RWriteInteger(fp, bASCII, 1);

    // Write the object name.  Eventually we should derive this
    // from the filename, possible with override by a creation option.
    RWriteString(fp, bASCII, "gg");

    // For now we write the raster as a numeric array with attributes (526).
    RWriteInteger(fp, bASCII, 526);
    RWriteInteger(fp, bASCII, nXSize * nYSize * nBands);

    // Write the raster data.
    CPLErr eErr = CE_None;

    double *padfScanline =
        static_cast<double *>(CPLMalloc(nXSize * sizeof(double)));

    for( int iBand = 0; iBand < nBands; iBand++ )
    {
        GDALRasterBand *poBand = poSrcDS->GetRasterBand(iBand + 1);

        for( int iLine = 0; iLine < nYSize && eErr == CE_None; iLine++ )
        {
            eErr = poBand->RasterIO(GF_Read, 0, iLine, nXSize, 1,
                                    padfScanline, nXSize, 1, GDT_Float64,
                                    sizeof(double), 0, NULL);

            if( bASCII )
            {
                for( int iValue = 0; iValue < nXSize; iValue++ )
                {
                    char szValue[128] = { '\0' };
                    CPLsnprintf(szValue, sizeof(szValue), "%.16g\n",
                                padfScanline[iValue]);
                    VSIFWriteL(szValue, 1, strlen(szValue), fp);
                }
            }
            else
            {
                for( int iValue = 0; iValue < nXSize; iValue++ )
                    CPL_MSBPTR64(padfScanline + iValue);

                VSIFWriteL(padfScanline, 8, nXSize, fp);
            }

            if( eErr == CE_None &&
                !pfnProgress((iLine + 1) / static_cast<double>(nYSize),
                             NULL, pProgressData) )
            {
                eErr = CE_Failure;
                CPLError(CE_Failure, CPLE_UserInterrupt,
                         "User terminated CreateCopy()");
            }
        }
    }

    CPLFree(padfScanline);

    // Write out the dims attribute.
    RWriteInteger(fp, bASCII, 1026);
    RWriteInteger(fp, bASCII, 1);

    RWriteString(fp, bASCII, "dim");

    RWriteInteger(fp, bASCII, 13);
    RWriteInteger(fp, bASCII, 3);
    RWriteInteger(fp, bASCII, nXSize);
    RWriteInteger(fp, bASCII, nYSize);
    RWriteInteger(fp, bASCII, nBands);

    RWriteInteger(fp, bASCII, 254);

    // Terminate overall pairlist.
    RWriteInteger(fp, bASCII, 254);

    // Cleanup.
    VSIFCloseL(fp);

    if( eErr != CE_None )
        return NULL;

    // Re-open dataset, and copy any auxiliary pam information.
    GDALPamDataset *poDS =
        static_cast<GDALPamDataset *>(GDALOpen(pszFilename, GA_ReadOnly));

    if( poDS )
        poDS->CloneInfo(poSrcDS, GCIF_PAM_DEFAULT);

    return poDS;
}
Example #3
0
GDALDataset *
RCreateCopy( const char * pszFilename, GDALDataset *poSrcDS, 
             int bStrict, char ** papszOptions, 
             GDALProgressFunc pfnProgress, void * pProgressData )

{
    int  nBands = poSrcDS->GetRasterCount();
    int  nXSize = poSrcDS->GetRasterXSize();
    int  nYSize = poSrcDS->GetRasterYSize();
    int  bASCII = CSLFetchBoolean( papszOptions, "ASCII", FALSE );
    int  bCompressed = CSLFetchBoolean( papszOptions, "COMPRESS", !bASCII );

/* -------------------------------------------------------------------- */
/*      Some some rudimentary checks                                    */
/* -------------------------------------------------------------------- */

/* -------------------------------------------------------------------- */
/*      Setup the filename to actually use.  We prefix with             */
/*      /vsigzip/ if we want compressed output.                         */
/* -------------------------------------------------------------------- */
    CPLString osAdjustedFilename;

    if( bCompressed )
        osAdjustedFilename = "/vsigzip/";

    osAdjustedFilename += pszFilename;

/* -------------------------------------------------------------------- */
/*      Create the file.                                                */
/* -------------------------------------------------------------------- */
    FILE	*fp;

    fp = VSIFOpenL( osAdjustedFilename, "wb" );
    if( fp == NULL )
    {
        CPLError( CE_Failure, CPLE_OpenFailed, 
                  "Unable to create file %s.\n", 
                  pszFilename );
        return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Write header with version, etc.                                 */
/* -------------------------------------------------------------------- */
    if( bASCII )
    {
        const char *pszHeader = "RDA2\nA\n";
        VSIFWriteL( pszHeader, 1, strlen(pszHeader), fp );
    }
    else
    {
        const char *pszHeader = "RDX2\nX\n";
        VSIFWriteL( pszHeader, 1, strlen(pszHeader), fp );
    }

    RWriteInteger( fp, bASCII, 2 );
    RWriteInteger( fp, bASCII, 133377 );
    RWriteInteger( fp, bASCII, 131840 );

/* -------------------------------------------------------------------- */
/*      Establish the primary pairlist with one component object.       */
/* -------------------------------------------------------------------- */
    RWriteInteger( fp, bASCII, 1026 );
    RWriteInteger( fp, bASCII, 1 );  

/* -------------------------------------------------------------------- */
/*      Write the object name.  Eventually we should derive this        */
/*      from the filename, possible with override by a creation         */
/*      option.                                                         */
/* -------------------------------------------------------------------- */
    RWriteString( fp, bASCII, "gg" );

/* -------------------------------------------------------------------- */
/*      For now we write the raster as a numeric array with             */
/*      attributes (526).                                               */
/* -------------------------------------------------------------------- */
    RWriteInteger( fp, bASCII, 526 );
    RWriteInteger( fp, bASCII, nXSize * nYSize * nBands );

/* -------------------------------------------------------------------- */
/*      Write the raster data.                                          */
/* -------------------------------------------------------------------- */
    double 	*padfScanline;
    CPLErr      eErr = CE_None;
    int         iLine;

    padfScanline = (double *) CPLMalloc( nXSize * sizeof(double) );

    for( int iBand = 0; iBand < nBands; iBand++ )
    {
        GDALRasterBand * poBand = poSrcDS->GetRasterBand( iBand+1 );

        for( iLine = 0; iLine < nYSize && eErr == CE_None; iLine++ )
        {
            int iValue;

            eErr = poBand->RasterIO( GF_Read, 0, iLine, nXSize, 1, 
                                     padfScanline, nXSize, 1, GDT_Float64,
                                     sizeof(double), 0 );

            if( bASCII )
            {
                for( iValue = 0; iValue < nXSize; iValue++ )
                {
                    char szValue[128];
                    sprintf(szValue,"%.16g\n", padfScanline[iValue] );
                    VSIFWriteL( szValue, 1, strlen(szValue), fp );
                }
            }
            else
            {
                for( iValue = 0; iValue < nXSize; iValue++ )
                    CPL_MSBPTR64( padfScanline + iValue );

                VSIFWriteL( padfScanline, 8, nXSize, fp );
            }
            
            if( eErr == CE_None
                && !pfnProgress( (iLine+1) / (double) nYSize,
                                 NULL, pProgressData ) )
            {
                eErr = CE_Failure;
                CPLError( CE_Failure, CPLE_UserInterrupt,
                          "User terminated CreateCopy()" );
            }
        }
    }

    CPLFree( padfScanline );

/* -------------------------------------------------------------------- */
/*      Write out the dims attribute.                                   */
/* -------------------------------------------------------------------- */
    RWriteInteger( fp, bASCII, 1026 );
    RWriteInteger( fp, bASCII, 1 );  
    
    RWriteString( fp, bASCII, "dim" );

    RWriteInteger( fp, bASCII, 13 );
    RWriteInteger( fp, bASCII, 3 );
    RWriteInteger( fp, bASCII, nXSize );
    RWriteInteger( fp, bASCII, nYSize );
    RWriteInteger( fp, bASCII, nBands );

    RWriteInteger( fp, bASCII, 254 );

/* -------------------------------------------------------------------- */
/*      Terminate overall pairlist.                                     */
/* -------------------------------------------------------------------- */
    RWriteInteger( fp, bASCII, 254 );

/* -------------------------------------------------------------------- */
/*      Cleanup.                                                        */
/* -------------------------------------------------------------------- */
    VSIFCloseL( fp );

    if( eErr != CE_None )
        return NULL;

/* -------------------------------------------------------------------- */
/*      Re-open dataset, and copy any auxilary pam information.         */
/* -------------------------------------------------------------------- */
    GDALPamDataset *poDS = 
        (GDALPamDataset *) GDALOpen( pszFilename, GA_ReadOnly );

    if( poDS )
        poDS->CloneInfo( poSrcDS, GCIF_PAM_DEFAULT );

    return poDS;
}