GDALRasterBandH toprsGadlReader::resolveRasterBand( int resLevel, int aGdalBandIndex ) const
{
GDALRasterBandH aBand = GDALGetRasterBand( theDataset, aGdalBandIndex );
if( resLevel > 0 )
{
int overviewIndex = resLevel-1;
GDALRasterBandH overviewBand = GDALGetOverview( aBand, overviewIndex );
if ( overviewBand )
{
aBand = overviewBand;
}
}
return aBand;
}
int main( int argc, char ** argv )
{
GDALDatasetH hDataset;
GDALRasterBandH hBand;
int i, iBand;
double adfGeoTransform[6];
GDALDriverH hDriver;
char **papszMetadata;
int bComputeMinMax = FALSE;
if( !GDALBridgeInitialize( "..", stderr ) )
{
fprintf( stderr, "Unable to intiailize GDAL bridge.\n" );
exit( 10 );
}
if( argc > 1 && strcmp(argv[1],"-mm") == 0 )
{
bComputeMinMax = TRUE;
argv++;
}
GDALAllRegister();
hDataset = GDALOpen( argv[1], GA_ReadOnly );
if( hDataset == NULL )
{
fprintf( stderr,
"GDALOpen failed - %d\n%s\n",
CPLGetLastErrorNo(), CPLGetLastErrorMsg() );
exit( 1 );
}
/* -------------------------------------------------------------------- */
/* Report general info. */
/* -------------------------------------------------------------------- */
hDriver = GDALGetDatasetDriver( hDataset );
printf( "Driver: %s/%s\n",
GDALGetDriverShortName( hDriver ),
GDALGetDriverLongName( hDriver ) );
printf( "Size is %d, %d\n",
GDALGetRasterXSize( hDataset ),
GDALGetRasterYSize( hDataset ) );
/* -------------------------------------------------------------------- */
/* Report projection. */
/* -------------------------------------------------------------------- */
if( GDALGetProjectionRef( hDataset ) != NULL )
{
OGRSpatialReferenceH hSRS;
char *pszProjection;
pszProjection = (char *) GDALGetProjectionRef( hDataset );
hSRS = OSRNewSpatialReference(NULL);
if( OSRImportFromWkt( hSRS, &pszProjection ) == CE_None )
{
char *pszPrettyWkt = NULL;
OSRExportToPrettyWkt( hSRS, &pszPrettyWkt, FALSE );
printf( "Coordinate System is:\n%s\n", pszPrettyWkt );
}
else
printf( "Coordinate System is `%s'\n",
GDALGetProjectionRef( hDataset ) );
OSRDestroySpatialReference( hSRS );
}
/* -------------------------------------------------------------------- */
/* Report Geotransform. */
/* -------------------------------------------------------------------- */
if( GDALGetGeoTransform( hDataset, adfGeoTransform ) == CE_None )
{
printf( "Origin = (%.6f,%.6f)\n",
adfGeoTransform[0], adfGeoTransform[3] );
printf( "Pixel Size = (%.6f,%.6f)\n",
adfGeoTransform[1], adfGeoTransform[5] );
}
/* -------------------------------------------------------------------- */
/* Report GCPs. */
/* -------------------------------------------------------------------- */
if( GDALGetGCPCount( hDataset ) > 0 )
{
printf( "GCP Projection = %s\n", GDALGetGCPProjection(hDataset) );
for( i = 0; i < GDALGetGCPCount(hDataset); i++ )
{
const GDAL_GCP *psGCP;
psGCP = GDALGetGCPs( hDataset ) + i;
printf( "GCP[%3d]: Id=%s, Info=%s\n"
" (%g,%g) -> (%g,%g,%g)\n",
i, psGCP->pszId, psGCP->pszInfo,
psGCP->dfGCPPixel, psGCP->dfGCPLine,
psGCP->dfGCPX, psGCP->dfGCPY, psGCP->dfGCPZ );
}
}
/* -------------------------------------------------------------------- */
/* Report metadata. */
/* -------------------------------------------------------------------- */
papszMetadata = GDALGetMetadata( hDataset, NULL );
if( papszMetadata != NULL )
{
printf( "Metadata:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
/* -------------------------------------------------------------------- */
/* Report subdatasets. */
/* -------------------------------------------------------------------- */
papszMetadata = GDALGetMetadata( hDataset, "SUBDATASETS" );
if( papszMetadata != NULL )
{
printf( "Subdatasets:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
/* -------------------------------------------------------------------- */
/* Report corners. */
/* -------------------------------------------------------------------- */
printf( "Corner Coordinates:\n" );
GDALInfoReportCorner( hDataset, "Upper Left",
0.0, 0.0 );
GDALInfoReportCorner( hDataset, "Lower Left",
0.0, GDALGetRasterYSize(hDataset));
GDALInfoReportCorner( hDataset, "Upper Right",
GDALGetRasterXSize(hDataset), 0.0 );
GDALInfoReportCorner( hDataset, "Lower Right",
GDALGetRasterXSize(hDataset),
GDALGetRasterYSize(hDataset) );
GDALInfoReportCorner( hDataset, "Center",
GDALGetRasterXSize(hDataset)/2.0,
GDALGetRasterYSize(hDataset)/2.0 );
/* ==================================================================== */
/* Loop over bands. */
/* ==================================================================== */
for( iBand = 0; iBand < GDALGetRasterCount( hDataset ); iBand++ )
{
double dfMin, dfMax, adfCMinMax[2], dfNoData;
int bGotMin, bGotMax, bGotNodata;
int nBlockXSize, nBlockYSize;
hBand = GDALGetRasterBand( hDataset, iBand+1 );
GDALGetBlockSize( hBand, &nBlockXSize, &nBlockYSize );
printf( "Band %d Block=%dx%d Type=%d, ColorInterp=%d\n", iBand+1,
nBlockXSize, nBlockYSize,
GDALGetRasterDataType(hBand),
GDALGetRasterColorInterpretation(hBand) );
dfMin = GDALGetRasterMinimum( hBand, &bGotMin );
dfMax = GDALGetRasterMaximum( hBand, &bGotMax );
printf( " Min=%.3f/%d, Max=%.3f/%d", dfMin, bGotMin, dfMax, bGotMax);
if( bComputeMinMax )
{
GDALComputeRasterMinMax( hBand, TRUE, adfCMinMax );
printf( ", Computed Min/Max=%.3f,%.3f",
adfCMinMax[0], adfCMinMax[1] );
}
printf( "\n" );
dfNoData = GDALGetRasterNoDataValue( hBand, &bGotNodata );
if( bGotNodata )
{
printf( " NoData Value=%g\n", dfNoData );
}
if( GDALGetOverviewCount(hBand) > 0 )
{
int iOverview;
printf( " Overviews: " );
for( iOverview = 0;
iOverview < GDALGetOverviewCount(hBand);
iOverview++ )
{
GDALRasterBandH hOverview;
if( iOverview != 0 )
printf( ", " );
hOverview = GDALGetOverview( hBand, iOverview );
printf( "%dx%d",
GDALGetRasterBandXSize( hOverview ),
GDALGetRasterBandYSize( hOverview ) );
}
printf( "\n" );
}
papszMetadata = GDALGetMetadata( hBand, NULL );
if( papszMetadata != NULL )
{
printf( "Metadata:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
if( GDALGetRasterColorInterpretation(hBand) == GCI_PaletteIndex )
{
GDALColorTableH hTable;
int i;
hTable = GDALGetRasterColorTable( hBand );
printf( " Color Table (%s with %d entries)\n",
GDALGetPaletteInterpretationName(
GDALGetPaletteInterpretation( hTable )),
GDALGetColorEntryCount( hTable ) );
for( i = 0; i < GDALGetColorEntryCount( hTable ); i++ )
{
GDALColorEntry sEntry;
GDALGetColorEntryAsRGB( hTable, i, &sEntry );
printf( " %3d: %d,%d,%d,%d\n",
i,
sEntry.c1,
sEntry.c2,
sEntry.c3,
sEntry.c4 );
}
}
}
GDALClose( hDataset );
exit( 0 );
}
int main( int argc, char ** argv )
{
const char *pszSrcFilename = NULL;
int anReqOverviews[1000];
int nReqOverviewCount = 0;
bool bMasks = false;
GDALAllRegister();
argc = GDALGeneralCmdLineProcessor( argc, &argv, 0 );
if( argc < 1 )
exit( -argc );
/* -------------------------------------------------------------------- */
/* Process arguments. */
/* -------------------------------------------------------------------- */
for( int iArg = 1; iArg < argc; iArg++ )
{
if( EQUAL(argv[iArg],"-masks") )
{
bMasks = true;
}
else if( pszSrcFilename == NULL )
{
pszSrcFilename = argv[iArg];
}
else if( atoi(argv[iArg]) > 0 || EQUAL(argv[iArg],"0") )
{
anReqOverviews[nReqOverviewCount++] = atoi(argv[iArg]);
}
else
{
Usage();
}
}
if( pszSrcFilename == NULL )
Usage();
/* -------------------------------------------------------------------- */
/* Open the input file. */
/* -------------------------------------------------------------------- */
GDALDatasetH hSrcDS = GDALOpen( pszSrcFilename, GA_ReadOnly );
if( hSrcDS == NULL )
exit( 1 );
/* ==================================================================== */
/* Process all bands. */
/* ==================================================================== */
int iBand;
int nBandCount = GDALGetRasterCount( hSrcDS );
for( iBand = 0; iBand < nBandCount; iBand++ )
{
GDALRasterBandH hBaseBand = GDALGetRasterBand( hSrcDS, iBand+1 );
/* -------------------------------------------------------------------- */
/* Process all overviews. */
/* -------------------------------------------------------------------- */
int iOverview;
int nOverviewCount = GDALGetOverviewCount( hBaseBand );
for( iOverview = 0; iOverview < nOverviewCount; iOverview++ )
{
GDALRasterBandH hSrcOver = GDALGetOverview( hBaseBand, iOverview );
if (hSrcOver == NULL)
{
fprintf(stderr, "skipping overview %d as being null\n", iOverview);
continue;
}
/* -------------------------------------------------------------------- */
/* Is this a requested overview? */
/* -------------------------------------------------------------------- */
if( nReqOverviewCount > 0 )
{
int i;
for( i = 0; i < nReqOverviewCount; i++ )
{
if( anReqOverviews[i] == iOverview )
break;
}
if( i == nReqOverviewCount )
continue;
}
/* -------------------------------------------------------------------- */
/* Create matching output file. */
/* -------------------------------------------------------------------- */
CPLString osFilename;
osFilename.Printf( "%s_%d_%d.tif",
CPLGetBasename(pszSrcFilename),
iBand+1, iOverview );
DumpBand( hSrcDS, hSrcOver, osFilename );
if( bMasks )
{
CPLString osFilename;
osFilename.Printf( "%s_%d_%d_mask.tif",
CPLGetBasename(pszSrcFilename),
iBand+1, iOverview );
DumpBand( hSrcDS, GDALGetMaskBand(hSrcOver), osFilename );
}
}
/* -------------------------------------------------------------------- */
/* Do we dump the mask? */
/* -------------------------------------------------------------------- */
if( bMasks )
{
CPLString osFilename;
osFilename.Printf( "%s_%d_mask.tif",
CPLGetBasename(pszSrcFilename),
iBand+1 );
DumpBand( hSrcDS, GDALGetMaskBand(hBaseBand), osFilename );
}
}
GDALClose( hSrcDS );
CSLDestroy( argv );
GDALDestroyDriverManager();
return 0;
}
int main( int argc, char ** argv )
{
GDALDatasetH hDataset;
GDALRasterBandH hBand;
int i, iBand;
double adfGeoTransform[6];
GDALDriverH hDriver;
char **papszMetadata;
int bComputeMinMax = FALSE, bSample = FALSE;
int bShowGCPs = TRUE, bShowMetadata = TRUE, bShowRAT=TRUE;
int bStats = FALSE, bApproxStats = TRUE, iMDD;
int bShowColorTable = TRUE, bComputeChecksum = FALSE;
int bReportHistograms = FALSE;
const char *pszFilename = NULL;
char **papszExtraMDDomains = NULL, **papszFileList;
const char *pszProjection = NULL;
OGRCoordinateTransformationH hTransform = NULL;
/* Check that we are running against at least GDAL 1.5 */
/* Note to developers : if we use newer API, please change the requirement */
if (atoi(GDALVersionInfo("VERSION_NUM")) < 1500)
{
fprintf(stderr, "At least, GDAL >= 1.5.0 is required for this version of %s, "
"which was compiled against GDAL %s\n", argv[0], GDAL_RELEASE_NAME);
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;
}
}
GDALAllRegister();
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], "-mm") )
bComputeMinMax = TRUE;
else if( EQUAL(argv[i], "-hist") )
bReportHistograms = TRUE;
else if( EQUAL(argv[i], "-stats") )
{
bStats = TRUE;
bApproxStats = FALSE;
}
else if( EQUAL(argv[i], "-approx_stats") )
{
bStats = TRUE;
bApproxStats = TRUE;
}
else if( EQUAL(argv[i], "-sample") )
bSample = TRUE;
else if( EQUAL(argv[i], "-checksum") )
bComputeChecksum = TRUE;
else if( EQUAL(argv[i], "-nogcp") )
bShowGCPs = FALSE;
else if( EQUAL(argv[i], "-nomd") )
bShowMetadata = FALSE;
else if( EQUAL(argv[i], "-norat") )
bShowRAT = FALSE;
else if( EQUAL(argv[i], "-noct") )
bShowColorTable = FALSE;
else if( EQUAL(argv[i], "-mdd") && i < argc-1 )
papszExtraMDDomains = CSLAddString( papszExtraMDDomains,
argv[++i] );
else if( argv[i][0] == '-' )
Usage();
else if( pszFilename == NULL )
pszFilename = argv[i];
else
Usage();
}
if( pszFilename == NULL )
Usage();
/* -------------------------------------------------------------------- */
/* Open dataset. */
/* -------------------------------------------------------------------- */
hDataset = GDALOpen( pszFilename, GA_ReadOnly );
if( hDataset == NULL )
{
fprintf( stderr,
"gdalinfo failed - unable to open '%s'.\n",
pszFilename );
CSLDestroy( argv );
GDALDumpOpenDatasets( stderr );
GDALDestroyDriverManager();
CPLDumpSharedList( NULL );
exit( 1 );
}
/* -------------------------------------------------------------------- */
/* Report general info. */
/* -------------------------------------------------------------------- */
hDriver = GDALGetDatasetDriver( hDataset );
printf( "Driver: %s/%s\n",
GDALGetDriverShortName( hDriver ),
GDALGetDriverLongName( hDriver ) );
papszFileList = GDALGetFileList( hDataset );
if( CSLCount(papszFileList) == 0 )
{
printf( "Files: none associated\n" );
}
else
{
printf( "Files: %s\n", papszFileList[0] );
for( i = 1; papszFileList[i] != NULL; i++ )
printf( " %s\n", papszFileList[i] );
}
CSLDestroy( papszFileList );
printf( "Size is %d, %d\n",
GDALGetRasterXSize( hDataset ),
GDALGetRasterYSize( hDataset ) );
/* -------------------------------------------------------------------- */
/* Report projection. */
/* -------------------------------------------------------------------- */
if( GDALGetProjectionRef( hDataset ) != NULL )
{
OGRSpatialReferenceH hSRS;
char *pszProjection;
pszProjection = (char *) GDALGetProjectionRef( hDataset );
hSRS = OSRNewSpatialReference(NULL);
if( OSRImportFromWkt( hSRS, &pszProjection ) == CE_None )
{
char *pszPrettyWkt = NULL;
OSRExportToPrettyWkt( hSRS, &pszPrettyWkt, FALSE );
printf( "Coordinate System is:\n%s\n", pszPrettyWkt );
CPLFree( pszPrettyWkt );
}
else
printf( "Coordinate System is `%s'\n",
GDALGetProjectionRef( hDataset ) );
OSRDestroySpatialReference( hSRS );
}
/* -------------------------------------------------------------------- */
/* Report Geotransform. */
/* -------------------------------------------------------------------- */
if( GDALGetGeoTransform( hDataset, adfGeoTransform ) == CE_None )
{
if( adfGeoTransform[2] == 0.0 && adfGeoTransform[4] == 0.0 )
{
printf( "Origin = (%.15f,%.15f)\n",
adfGeoTransform[0], adfGeoTransform[3] );
printf( "Pixel Size = (%.15f,%.15f)\n",
adfGeoTransform[1], adfGeoTransform[5] );
}
else
printf( "GeoTransform =\n"
" %.16g, %.16g, %.16g\n"
" %.16g, %.16g, %.16g\n",
adfGeoTransform[0],
adfGeoTransform[1],
adfGeoTransform[2],
adfGeoTransform[3],
adfGeoTransform[4],
adfGeoTransform[5] );
}
/* -------------------------------------------------------------------- */
/* Report GCPs. */
/* -------------------------------------------------------------------- */
if( bShowGCPs && GDALGetGCPCount( hDataset ) > 0 )
{
if (GDALGetGCPProjection(hDataset) != NULL)
{
OGRSpatialReferenceH hSRS;
char *pszProjection;
pszProjection = (char *) GDALGetGCPProjection( hDataset );
hSRS = OSRNewSpatialReference(NULL);
if( OSRImportFromWkt( hSRS, &pszProjection ) == CE_None )
{
char *pszPrettyWkt = NULL;
OSRExportToPrettyWkt( hSRS, &pszPrettyWkt, FALSE );
printf( "GCP Projection = \n%s\n", pszPrettyWkt );
CPLFree( pszPrettyWkt );
}
else
printf( "GCP Projection = %s\n",
GDALGetGCPProjection( hDataset ) );
OSRDestroySpatialReference( hSRS );
}
for( i = 0; i < GDALGetGCPCount(hDataset); i++ )
{
const GDAL_GCP *psGCP;
psGCP = GDALGetGCPs( hDataset ) + i;
printf( "GCP[%3d]: Id=%s, Info=%s\n"
" (%.15g,%.15g) -> (%.15g,%.15g,%.15g)\n",
i, psGCP->pszId, psGCP->pszInfo,
psGCP->dfGCPPixel, psGCP->dfGCPLine,
psGCP->dfGCPX, psGCP->dfGCPY, psGCP->dfGCPZ );
}
}
/* -------------------------------------------------------------------- */
/* Report metadata. */
/* -------------------------------------------------------------------- */
papszMetadata = (bShowMetadata) ? GDALGetMetadata( hDataset, NULL ) : NULL;
if( bShowMetadata && CSLCount(papszMetadata) > 0 )
{
printf( "Metadata:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
for( iMDD = 0; bShowMetadata && iMDD < CSLCount(papszExtraMDDomains); iMDD++ )
{
papszMetadata = GDALGetMetadata( hDataset, papszExtraMDDomains[iMDD] );
if( CSLCount(papszMetadata) > 0 )
{
printf( "Metadata (%s):\n", papszExtraMDDomains[iMDD]);
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
}
/* -------------------------------------------------------------------- */
/* Report "IMAGE_STRUCTURE" metadata. */
/* -------------------------------------------------------------------- */
papszMetadata = (bShowMetadata) ? GDALGetMetadata( hDataset, "IMAGE_STRUCTURE" ) : NULL;
if( bShowMetadata && CSLCount(papszMetadata) > 0 )
{
printf( "Image Structure Metadata:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
/* -------------------------------------------------------------------- */
/* Report subdatasets. */
/* -------------------------------------------------------------------- */
papszMetadata = GDALGetMetadata( hDataset, "SUBDATASETS" );
if( CSLCount(papszMetadata) > 0 )
{
printf( "Subdatasets:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
/* -------------------------------------------------------------------- */
/* Report geolocation. */
/* -------------------------------------------------------------------- */
papszMetadata = (bShowMetadata) ? GDALGetMetadata( hDataset, "GEOLOCATION" ) : NULL;
if( bShowMetadata && CSLCount(papszMetadata) > 0 )
{
printf( "Geolocation:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
/* -------------------------------------------------------------------- */
/* Report RPCs */
/* -------------------------------------------------------------------- */
papszMetadata = (bShowMetadata) ? GDALGetMetadata( hDataset, "RPC" ) : NULL;
if( bShowMetadata && CSLCount(papszMetadata) > 0 )
{
printf( "RPC Metadata:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
/* -------------------------------------------------------------------- */
/* Setup projected to lat/long transform if appropriate. */
/* -------------------------------------------------------------------- */
if( GDALGetGeoTransform( hDataset, adfGeoTransform ) == CE_None )
pszProjection = GDALGetProjectionRef(hDataset);
if( pszProjection != NULL && strlen(pszProjection) > 0 )
{
OGRSpatialReferenceH hProj, hLatLong = NULL;
hProj = OSRNewSpatialReference( pszProjection );
if( hProj != NULL )
hLatLong = OSRCloneGeogCS( hProj );
if( hLatLong != NULL )
{
CPLPushErrorHandler( CPLQuietErrorHandler );
hTransform = OCTNewCoordinateTransformation( hProj, hLatLong );
CPLPopErrorHandler();
OSRDestroySpatialReference( hLatLong );
}
if( hProj != NULL )
OSRDestroySpatialReference( hProj );
}
/* -------------------------------------------------------------------- */
/* Report corners. */
/* -------------------------------------------------------------------- */
printf( "Corner Coordinates:\n" );
GDALInfoReportCorner( hDataset, hTransform, "Upper Left",
0.0, 0.0 );
GDALInfoReportCorner( hDataset, hTransform, "Lower Left",
0.0, GDALGetRasterYSize(hDataset));
GDALInfoReportCorner( hDataset, hTransform, "Upper Right",
GDALGetRasterXSize(hDataset), 0.0 );
GDALInfoReportCorner( hDataset, hTransform, "Lower Right",
GDALGetRasterXSize(hDataset),
GDALGetRasterYSize(hDataset) );
GDALInfoReportCorner( hDataset, hTransform, "Center",
GDALGetRasterXSize(hDataset)/2.0,
GDALGetRasterYSize(hDataset)/2.0 );
if( hTransform != NULL )
{
OCTDestroyCoordinateTransformation( hTransform );
hTransform = NULL;
}
/* ==================================================================== */
/* Loop over bands. */
/* ==================================================================== */
for( iBand = 0; iBand < GDALGetRasterCount( hDataset ); iBand++ )
{
double dfMin, dfMax, adfCMinMax[2], dfNoData;
int bGotMin, bGotMax, bGotNodata, bSuccess;
int nBlockXSize, nBlockYSize, nMaskFlags;
double dfMean, dfStdDev;
GDALColorTableH hTable;
CPLErr eErr;
hBand = GDALGetRasterBand( hDataset, iBand+1 );
if( bSample )
{
float afSample[10000];
int nCount;
nCount = GDALGetRandomRasterSample( hBand, 10000, afSample );
printf( "Got %d samples.\n", nCount );
}
GDALGetBlockSize( hBand, &nBlockXSize, &nBlockYSize );
printf( "Band %d Block=%dx%d Type=%s, ColorInterp=%s\n", iBand+1,
nBlockXSize, nBlockYSize,
GDALGetDataTypeName(
GDALGetRasterDataType(hBand)),
GDALGetColorInterpretationName(
GDALGetRasterColorInterpretation(hBand)) );
if( GDALGetDescription( hBand ) != NULL
&& strlen(GDALGetDescription( hBand )) > 0 )
printf( " Description = %s\n", GDALGetDescription(hBand) );
dfMin = GDALGetRasterMinimum( hBand, &bGotMin );
dfMax = GDALGetRasterMaximum( hBand, &bGotMax );
if( bGotMin || bGotMax || bComputeMinMax )
{
printf( " " );
if( bGotMin )
printf( "Min=%.3f ", dfMin );
if( bGotMax )
printf( "Max=%.3f ", dfMax );
if( bComputeMinMax )
{
CPLErrorReset();
GDALComputeRasterMinMax( hBand, FALSE, adfCMinMax );
if (CPLGetLastErrorType() == CE_None)
{
printf( " Computed Min/Max=%.3f,%.3f",
adfCMinMax[0], adfCMinMax[1] );
}
}
printf( "\n" );
}
eErr = GDALGetRasterStatistics( hBand, bApproxStats, bStats,
&dfMin, &dfMax, &dfMean, &dfStdDev );
if( eErr == CE_None )
{
printf( " Minimum=%.3f, Maximum=%.3f, Mean=%.3f, StdDev=%.3f\n",
dfMin, dfMax, dfMean, dfStdDev );
}
if( bReportHistograms )
{
int nBucketCount, *panHistogram = NULL;
eErr = GDALGetDefaultHistogram( hBand, &dfMin, &dfMax,
&nBucketCount, &panHistogram,
TRUE, GDALTermProgress, NULL );
if( eErr == CE_None )
{
int iBucket;
printf( " %d buckets from %g to %g:\n ",
nBucketCount, dfMin, dfMax );
for( iBucket = 0; iBucket < nBucketCount; iBucket++ )
printf( "%d ", panHistogram[iBucket] );
printf( "\n" );
CPLFree( panHistogram );
}
}
if ( bComputeChecksum)
{
printf( " Checksum=%d\n",
GDALChecksumImage(hBand, 0, 0,
GDALGetRasterXSize(hDataset),
GDALGetRasterYSize(hDataset)));
}
dfNoData = GDALGetRasterNoDataValue( hBand, &bGotNodata );
if( bGotNodata )
{
printf( " NoData Value=%.18g\n", dfNoData );
}
if( GDALGetOverviewCount(hBand) > 0 )
{
int iOverview;
printf( " Overviews: " );
for( iOverview = 0;
iOverview < GDALGetOverviewCount(hBand);
iOverview++ )
{
GDALRasterBandH hOverview;
const char *pszResampling = NULL;
if( iOverview != 0 )
printf( ", " );
hOverview = GDALGetOverview( hBand, iOverview );
printf( "%dx%d",
GDALGetRasterBandXSize( hOverview ),
GDALGetRasterBandYSize( hOverview ) );
pszResampling =
GDALGetMetadataItem( hOverview, "RESAMPLING", "" );
if( pszResampling != NULL
&& EQUALN(pszResampling,"AVERAGE_BIT2",12) )
printf( "*" );
}
printf( "\n" );
if ( bComputeChecksum)
{
printf( " Overviews checksum: " );
for( iOverview = 0;
iOverview < GDALGetOverviewCount(hBand);
iOverview++ )
{
GDALRasterBandH hOverview;
if( iOverview != 0 )
printf( ", " );
hOverview = GDALGetOverview( hBand, iOverview );
printf( "%d",
GDALChecksumImage(hOverview, 0, 0,
GDALGetRasterBandXSize(hOverview),
GDALGetRasterBandYSize(hOverview)));
}
printf( "\n" );
}
}
if( GDALHasArbitraryOverviews( hBand ) )
{
printf( " Overviews: arbitrary\n" );
}
nMaskFlags = GDALGetMaskFlags( hBand );
if( (nMaskFlags & (GMF_NODATA|GMF_ALL_VALID)) == 0 )
{
GDALRasterBandH hMaskBand = GDALGetMaskBand(hBand) ;
printf( " Mask Flags: " );
if( nMaskFlags & GMF_PER_DATASET )
printf( "PER_DATASET " );
if( nMaskFlags & GMF_ALPHA )
printf( "ALPHA " );
if( nMaskFlags & GMF_NODATA )
printf( "NODATA " );
if( nMaskFlags & GMF_ALL_VALID )
printf( "ALL_VALID " );
printf( "\n" );
if( hMaskBand != NULL &&
GDALGetOverviewCount(hMaskBand) > 0 )
{
int iOverview;
printf( " Overviews of mask band: " );
for( iOverview = 0;
iOverview < GDALGetOverviewCount(hMaskBand);
iOverview++ )
{
GDALRasterBandH hOverview;
if( iOverview != 0 )
printf( ", " );
hOverview = GDALGetOverview( hMaskBand, iOverview );
printf( "%dx%d",
GDALGetRasterBandXSize( hOverview ),
GDALGetRasterBandYSize( hOverview ) );
}
printf( "\n" );
}
}
if( strlen(GDALGetRasterUnitType(hBand)) > 0 )
{
printf( " Unit Type: %s\n", GDALGetRasterUnitType(hBand) );
}
if( GDALGetRasterCategoryNames(hBand) != NULL )
{
char **papszCategories = GDALGetRasterCategoryNames(hBand);
int i;
printf( " Categories:\n" );
for( i = 0; papszCategories[i] != NULL; i++ )
printf( " %3d: %s\n", i, papszCategories[i] );
}
if( GDALGetRasterScale( hBand, &bSuccess ) != 1.0
|| GDALGetRasterOffset( hBand, &bSuccess ) != 0.0 )
printf( " Offset: %.15g, Scale:%.15g\n",
GDALGetRasterOffset( hBand, &bSuccess ),
GDALGetRasterScale( hBand, &bSuccess ) );
papszMetadata = (bShowMetadata) ? GDALGetMetadata( hBand, NULL ) : NULL;
if( bShowMetadata && CSLCount(papszMetadata) > 0 )
{
printf( " Metadata:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
papszMetadata = (bShowMetadata) ? GDALGetMetadata( hBand, "IMAGE_STRUCTURE" ) : NULL;
if( bShowMetadata && CSLCount(papszMetadata) > 0 )
{
printf( " Image Structure Metadata:\n" );
for( i = 0; papszMetadata[i] != NULL; i++ )
{
printf( " %s\n", papszMetadata[i] );
}
}
if( GDALGetRasterColorInterpretation(hBand) == GCI_PaletteIndex
&& (hTable = GDALGetRasterColorTable( hBand )) != NULL )
{
int i;
printf( " Color Table (%s with %d entries)\n",
GDALGetPaletteInterpretationName(
GDALGetPaletteInterpretation( hTable )),
GDALGetColorEntryCount( hTable ) );
if (bShowColorTable)
{
for( i = 0; i < GDALGetColorEntryCount( hTable ); i++ )
{
GDALColorEntry sEntry;
GDALGetColorEntryAsRGB( hTable, i, &sEntry );
printf( " %3d: %d,%d,%d,%d\n",
i,
sEntry.c1,
sEntry.c2,
sEntry.c3,
sEntry.c4 );
}
}
}
if( bShowRAT && GDALGetDefaultRAT( hBand ) != NULL )
{
GDALRasterAttributeTableH hRAT = GDALGetDefaultRAT( hBand );
GDALRATDumpReadable( hRAT, NULL );
}
}
GDALClose( hDataset );
CSLDestroy( papszExtraMDDomains );
CSLDestroy( argv );
GDALDumpOpenDatasets( stderr );
GDALDestroyDriverManager();
CPLDumpSharedList( NULL );
CPLCleanupTLS();
exit( 0 );
}
int main( int argc, char ** argv )
{
const char *pszLocX = NULL, *pszLocY = NULL;
const char *pszSrcFilename = NULL;
char *pszSourceSRS = NULL;
std::vector<int> anBandList;
bool bAsXML = false, bLIFOnly = false;
bool bQuiet = false, bValOnly = false;
int nOverview = -1;
char **papszOpenOptions = NULL;
GDALAllRegister();
argc = GDALGeneralCmdLineProcessor( argc, &argv, 0 );
if( argc < 1 )
exit( -argc );
/* -------------------------------------------------------------------- */
/* Parse arguments. */
/* -------------------------------------------------------------------- */
int i;
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],"-b") && i < argc-1 )
{
anBandList.push_back( atoi(argv[++i]) );
}
else if( EQUAL(argv[i],"-overview") && i < argc-1 )
{
nOverview = atoi(argv[++i]) - 1;
}
else if( EQUAL(argv[i],"-l_srs") && i < argc-1 )
{
CPLFree(pszSourceSRS);
pszSourceSRS = SanitizeSRS(argv[++i]);
}
else if( EQUAL(argv[i],"-geoloc") )
{
CPLFree(pszSourceSRS);
pszSourceSRS = CPLStrdup("-geoloc");
}
else if( EQUAL(argv[i],"-wgs84") )
{
CPLFree(pszSourceSRS);
pszSourceSRS = SanitizeSRS("WGS84");
}
else if( EQUAL(argv[i],"-xml") )
{
bAsXML = true;
}
else if( EQUAL(argv[i],"-lifonly") )
{
bLIFOnly = true;
bQuiet = true;
}
else if( EQUAL(argv[i],"-valonly") )
{
bValOnly = true;
bQuiet = true;
}
else if( EQUAL(argv[i], "-oo") && i < argc-1 )
{
papszOpenOptions = CSLAddString( papszOpenOptions,
argv[++i] );
}
else if( argv[i][0] == '-' && !isdigit(argv[i][1]) )
Usage();
else if( pszSrcFilename == NULL )
pszSrcFilename = argv[i];
else if( pszLocX == NULL )
pszLocX = argv[i];
else if( pszLocY == NULL )
pszLocY = argv[i];
else
Usage();
}
if( pszSrcFilename == NULL || (pszLocX != NULL && pszLocY == NULL) )
Usage();
/* -------------------------------------------------------------------- */
/* Open source file. */
/* -------------------------------------------------------------------- */
GDALDatasetH hSrcDS = NULL;
hSrcDS = GDALOpenEx( pszSrcFilename, GDAL_OF_RASTER, NULL,
(const char* const* )papszOpenOptions, NULL );
if( hSrcDS == NULL )
exit( 1 );
/* -------------------------------------------------------------------- */
/* Setup coordinate transformation, if required */
/* -------------------------------------------------------------------- */
OGRSpatialReferenceH hSrcSRS = NULL, hTrgSRS = NULL;
OGRCoordinateTransformationH hCT = NULL;
if( pszSourceSRS != NULL && !EQUAL(pszSourceSRS,"-geoloc") )
{
hSrcSRS = OSRNewSpatialReference( pszSourceSRS );
hTrgSRS = OSRNewSpatialReference( GDALGetProjectionRef( hSrcDS ) );
hCT = OCTNewCoordinateTransformation( hSrcSRS, hTrgSRS );
if( hCT == NULL )
exit( 1 );
}
/* -------------------------------------------------------------------- */
/* If no bands were requested, we will query them all. */
/* -------------------------------------------------------------------- */
if( anBandList.size() == 0 )
{
for( i = 0; i < GDALGetRasterCount( hSrcDS ); i++ )
anBandList.push_back( i+1 );
}
/* -------------------------------------------------------------------- */
/* Turn the location into a pixel and line location. */
/* -------------------------------------------------------------------- */
int inputAvailable = 1;
double dfGeoX;
double dfGeoY;
CPLString osXML;
if( pszLocX == NULL && pszLocY == NULL )
{
if (fscanf(stdin, "%lf %lf", &dfGeoX, &dfGeoY) != 2)
{
inputAvailable = 0;
}
}
else
{
dfGeoX = CPLAtof(pszLocX);
dfGeoY = CPLAtof(pszLocY);
}
while (inputAvailable)
{
int iPixel, iLine;
if (hCT)
{
if( !OCTTransform( hCT, 1, &dfGeoX, &dfGeoY, NULL ) )
exit( 1 );
}
if( pszSourceSRS != NULL )
{
double adfGeoTransform[6], adfInvGeoTransform[6];
if( GDALGetGeoTransform( hSrcDS, adfGeoTransform ) != CE_None )
{
CPLError(CE_Failure, CPLE_AppDefined, "Cannot get geotransform");
exit( 1 );
}
if( !GDALInvGeoTransform( adfGeoTransform, adfInvGeoTransform ) )
{
CPLError(CE_Failure, CPLE_AppDefined, "Cannot invert geotransform");
exit( 1 );
}
iPixel = (int) floor(
adfInvGeoTransform[0]
+ adfInvGeoTransform[1] * dfGeoX
+ adfInvGeoTransform[2] * dfGeoY );
iLine = (int) floor(
adfInvGeoTransform[3]
+ adfInvGeoTransform[4] * dfGeoX
+ adfInvGeoTransform[5] * dfGeoY );
}
else
{
iPixel = (int) floor(dfGeoX);
iLine = (int) floor(dfGeoY);
}
/* -------------------------------------------------------------------- */
/* Prepare report. */
/* -------------------------------------------------------------------- */
CPLString osLine;
if( bAsXML )
{
osLine.Printf( "<Report pixel=\"%d\" line=\"%d\">",
iPixel, iLine );
osXML += osLine;
}
else if( !bQuiet )
{
printf( "Report:\n" );
printf( " Location: (%dP,%dL)\n", iPixel, iLine );
}
int bPixelReport = TRUE;
if( iPixel < 0 || iLine < 0
|| iPixel >= GDALGetRasterXSize( hSrcDS )
|| iLine >= GDALGetRasterYSize( hSrcDS ) )
{
if( bAsXML )
osXML += "<Alert>Location is off this file! No further details to report.</Alert>";
else if( bValOnly )
printf("\n");
else if( !bQuiet )
printf( "\nLocation is off this file! No further details to report.\n");
bPixelReport = FALSE;
}
/* -------------------------------------------------------------------- */
/* Process each band. */
/* -------------------------------------------------------------------- */
for( i = 0; bPixelReport && i < (int) anBandList.size(); i++ )
{
GDALRasterBandH hBand = GDALGetRasterBand( hSrcDS, anBandList[i] );
int iPixelToQuery = iPixel;
int iLineToQuery = iLine;
if (nOverview >= 0 && hBand != NULL)
{
GDALRasterBandH hOvrBand = GDALGetOverview(hBand, nOverview);
if (hOvrBand != NULL)
{
int nOvrXSize = GDALGetRasterBandXSize(hOvrBand);
int nOvrYSize = GDALGetRasterBandYSize(hOvrBand);
iPixelToQuery = (int)(0.5 + 1.0 * iPixel / GDALGetRasterXSize( hSrcDS ) * nOvrXSize);
iLineToQuery = (int)(0.5 + 1.0 * iLine / GDALGetRasterYSize( hSrcDS ) * nOvrYSize);
if (iPixelToQuery >= nOvrXSize)
iPixelToQuery = nOvrXSize - 1;
if (iLineToQuery >= nOvrYSize)
iLineToQuery = nOvrYSize - 1;
}
else
{
CPLError(CE_Failure, CPLE_AppDefined,
"Cannot get overview %d of band %d",
nOverview + 1, anBandList[i] );
}
hBand = hOvrBand;
}
if (hBand == NULL)
continue;
if( bAsXML )
{
osLine.Printf( "<BandReport band=\"%d\">", anBandList[i] );
osXML += osLine;
}
else if( !bQuiet )
{
printf( " Band %d:\n", anBandList[i] );
}
/* -------------------------------------------------------------------- */
/* Request location info for this location. It is possible */
/* only the VRT driver actually supports this. */
/* -------------------------------------------------------------------- */
CPLString osItem;
osItem.Printf( "Pixel_%d_%d", iPixelToQuery, iLineToQuery );
const char *pszLI = GDALGetMetadataItem( hBand, osItem, "LocationInfo");
if( pszLI != NULL )
{
if( bAsXML )
osXML += pszLI;
else if( !bQuiet )
printf( " %s\n", pszLI );
else if( bLIFOnly )
{
/* Extract all files, if any. */
CPLXMLNode *psRoot = CPLParseXMLString( pszLI );
if( psRoot != NULL
&& psRoot->psChild != NULL
&& psRoot->eType == CXT_Element
&& EQUAL(psRoot->pszValue,"LocationInfo") )
{
CPLXMLNode *psNode;
for( psNode = psRoot->psChild;
psNode != NULL;
psNode = psNode->psNext )
{
if( psNode->eType == CXT_Element
&& EQUAL(psNode->pszValue,"File")
&& psNode->psChild != NULL )
{
char* pszUnescaped = CPLUnescapeString(
psNode->psChild->pszValue, NULL, CPLES_XML);
printf( "%s\n", pszUnescaped );
CPLFree(pszUnescaped);
}
}
}
CPLDestroyXMLNode( psRoot );
}
}
/* -------------------------------------------------------------------- */
/* Report the pixel value of this band. */
/* -------------------------------------------------------------------- */
double adfPixel[2];
if( GDALRasterIO( hBand, GF_Read, iPixelToQuery, iLineToQuery, 1, 1,
adfPixel, 1, 1, GDT_CFloat64, 0, 0) == CE_None )
{
CPLString osValue;
if( GDALDataTypeIsComplex( GDALGetRasterDataType( hBand ) ) )
osValue.Printf( "%.15g+%.15gi", adfPixel[0], adfPixel[1] );
else
osValue.Printf( "%.15g", adfPixel[0] );
if( bAsXML )
{
osXML += "<Value>";
osXML += osValue;
osXML += "</Value>";
}
else if( !bQuiet )
printf( " Value: %s\n", osValue.c_str() );
else if( bValOnly )
printf( "%s\n", osValue.c_str() );
// Report unscaled if we have scale/offset values.
int bSuccess;
double dfOffset = GDALGetRasterOffset( hBand, &bSuccess );
double dfScale = GDALGetRasterScale( hBand, &bSuccess );
if( dfOffset != 0.0 || dfScale != 1.0 )
{
adfPixel[0] = adfPixel[0] * dfScale + dfOffset;
adfPixel[1] = adfPixel[1] * dfScale + dfOffset;
if( GDALDataTypeIsComplex( GDALGetRasterDataType( hBand ) ) )
osValue.Printf( "%.15g+%.15gi", adfPixel[0], adfPixel[1] );
else
osValue.Printf( "%.15g", adfPixel[0] );
if( bAsXML )
{
osXML += "<DescaledValue>";
osXML += osValue;
osXML += "</DescaledValue>";
}
else if( !bQuiet )
printf( " Descaled Value: %s\n", osValue.c_str() );
}
}
if( bAsXML )
osXML += "</BandReport>";
}
osXML += "</Report>";
if( (pszLocX != NULL && pszLocY != NULL) ||
(fscanf(stdin, "%lf %lf", &dfGeoX, &dfGeoY) != 2) )
{
inputAvailable = 0;
}
}
/* -------------------------------------------------------------------- */
/* Finalize xml report and print. */
/* -------------------------------------------------------------------- */
if( bAsXML )
{
CPLXMLNode *psRoot;
char *pszFormattedXML;
psRoot = CPLParseXMLString( osXML );
pszFormattedXML = CPLSerializeXMLTree( psRoot );
CPLDestroyXMLNode( psRoot );
printf( "%s", pszFormattedXML );
CPLFree( pszFormattedXML );
}
/* -------------------------------------------------------------------- */
/* Cleanup */
/* -------------------------------------------------------------------- */
if (hCT) {
OSRDestroySpatialReference( hSrcSRS );
OSRDestroySpatialReference( hTrgSRS );
OCTDestroyCoordinateTransformation( hCT );
}
if (hSrcDS)
GDALClose(hSrcDS);
GDALDumpOpenDatasets( stderr );
GDALDestroyDriverManager();
CPLFree(pszSourceSRS);
CSLDestroy(papszOpenOptions);
CSLDestroy( argv );
return 0;
}
/*
* POPULATE_METADATA_STRUCT
*
* This routine just queries the GDAL raster file for all the metadata
* that can be squeezed out of it.
*
* The resulting matlab structure is by necessity nested. Each raster
* file can have several bands, e.g. PNG files usually have 3, a red, a
* blue, and a green channel. Each band can have several overviews (tiffs
* come to mind here).
*
* Fields:
* ProjectionRef: a string describing the projection. Not parsed.
* GeoTransform:
* a 6-tuple. Entries are as follows.
* [0] --> top left x
* [1] --> w-e pixel resolution
* [2] --> rotation, 0 if image is "north up"
* [3] --> top left y
* [4] --> rotation, 0 if image is "north up"
* [5] --> n-s pixel resolution
*
* DriverShortName: describes the driver used to query *this* raster file
* DriverLongName: describes the driver used to query *this* raster file
* RasterXSize, RasterYSize:
* These are the primary dimensions of the raster. See "Overview", though.
* RasterCount:
* Number of raster bands present in the file.
* Driver:
* This itself is a structure array. Each element describes a driver
* that the locally compiled GDAL library has available. So you recompile
* GDAL with new format support, this structure will change.
*
* Fields:
* DriverShortName, DriverLongName:
* Same as fields in top level structure with same name.
*
* Band:
* Also a structure array. One element for each raster band present in
* the GDAL file. See "RasterCount".
*
* Fields:
* XSize, YSize:
* Dimensions of the current raster band.
* Overview:
* A structure array, one element for each overview present. If
* empty, then there are no overviews.
* NoDataValue:
* When passed back to MATLAB, one can set pixels with this value to NaN.
* ColorMap:
* A Mx3 double array with the colormap, or empty if it does not exists
*
* */
mxArray *populate_metadata_struct (GDALDatasetH hDataset, int correct_bounds) {
/* These are used to define the metadata structure about available GDAL drivers. */
mxArray *mxtmp;
mxArray *mxProjectionRef;
mxArray *mxGeoTransform;
mxArray *mxGDALDriverShortName;
mxArray *mxGDALDriverLongName;
mxArray *mxGDALRasterCount;
mxArray *mxGDALRasterXSize;
mxArray *mxGDALRasterYSize;
mxArray *mxCorners;
mxArray *mxGMT_header;
/*
* These will be matlab structures that hold the metadata.
* "metadata_struct" actually encompasses "band_struct",
* which encompasses "overview_struct"
* */
mxArray *metadata_struct;
mxArray *band_struct;
mxArray *overview_struct;
mxArray *corner_struct;
int overview, band_number; /* Loop indices */
double *dptr; /* short cut to the mxArray data */
double *dptr2; /* "" */
GDALDriverH hDriver; /* This is the driver chosen by the GDAL library to query the dataset. */
GDALRasterBandH hBand, overview_hBand;
int num_overview_fields; /* Number of metadata items for each overview structure. */
int status; /* success or failure */
double adfGeoTransform[6]; /* bounds on the dataset */
int num_overviews; /* Number of overviews in the current band. */
int num_struct_fields; /* number of fields in the metadata structures. */
int num_band_fields;
int num_corner_fields;
char *fieldnames[100]; /* this array contains the names of the fields of the metadata structure. */
char *band_fieldnames[100];
char *corner_fieldnames[100];
char *overview_fieldnames[100];
int xSize, ySize, raster_count; /* Dimensions of the dataset */
int gdal_type; /* Datatype of the bands. */
double tmpdble; /* temporary value */
double xy_c[2]; /* Corner coordinates */
int dims[2];
int bGotMin, bGotMax; /* To know if driver transmited Min/Max */
double adfMinMax[2]; /* Dataset Min Max */
double z_min = 1e50, z_max = -1e50;
/* Create the metadata structure. Just one element, with XXX fields. */
num_struct_fields = 10;
fieldnames[0] = strdup ("ProjectionRef");
fieldnames[1] = strdup ("GeoTransform");
fieldnames[2] = strdup ("DriverShortName");
fieldnames[3] = strdup ("DriverLongName");
fieldnames[4] = strdup ("RasterXSize");
fieldnames[5] = strdup ("RasterYSize");
fieldnames[6] = strdup ("RasterCount");
fieldnames[7] = strdup ("Band");
fieldnames[8] = strdup ("Corners");
fieldnames[9] = strdup("GMT_hdr");
metadata_struct = mxCreateStructMatrix ( 1, 1, num_struct_fields, (const char **)fieldnames );
/* Record the ProjectionRef. */
mxProjectionRef = mxCreateString ( GDALGetProjectionRef( hDataset ) );
mxSetField ( metadata_struct, 0, "ProjectionRef", mxProjectionRef );
/* Record the geotransform. */
mxGeoTransform = mxCreateNumericMatrix ( 6, 1, mxDOUBLE_CLASS, mxREAL );
dptr = mxGetPr ( mxGeoTransform );
if( GDALGetGeoTransform( hDataset, adfGeoTransform ) == CE_None ) {
dptr[0] = adfGeoTransform[0];
dptr[1] = adfGeoTransform[1];
dptr[2] = adfGeoTransform[2];
dptr[3] = adfGeoTransform[3];
dptr[4] = adfGeoTransform[4];
dptr[5] = adfGeoTransform[5];
mxSetField ( metadata_struct, 0, "GeoTransform", mxGeoTransform );
}
/* Get driver information */
hDriver = GDALGetDatasetDriver( hDataset );
mxGDALDriverShortName = mxCreateString ( GDALGetDriverShortName( hDriver ) );
mxSetField ( metadata_struct, 0, (const char *) "DriverShortName", mxGDALDriverShortName );
mxGDALDriverLongName = mxCreateString ( GDALGetDriverLongName( hDriver ) );
mxSetField ( metadata_struct, 0, (const char *) "DriverLongName", mxGDALDriverLongName );
xSize = GDALGetRasterXSize( hDataset );
ySize = GDALGetRasterYSize( hDataset );
mxGDALRasterXSize = mxCreateDoubleScalar ( (double) xSize );
mxSetField ( metadata_struct, 0, (const char *) "RasterXSize", mxGDALRasterXSize );
mxGDALRasterYSize = mxCreateDoubleScalar ( (double) ySize );
mxSetField ( metadata_struct, 0, (const char *) "RasterYSize", mxGDALRasterYSize );
raster_count = GDALGetRasterCount( hDataset );
mxGDALRasterCount = mxCreateDoubleScalar ( (double)raster_count );
mxSetField ( metadata_struct, 0, (const char *) "RasterCount", mxGDALRasterCount );
/* Get the metadata for each band. */
num_band_fields = 5;
band_fieldnames[0] = strdup ( "XSize" );
band_fieldnames[1] = strdup ( "YSize" );
band_fieldnames[2] = strdup ( "Overview" );
band_fieldnames[3] = strdup ( "NoDataValue" );
band_fieldnames[4] = strdup ( "DataType" );
band_struct = mxCreateStructMatrix ( raster_count, 1, num_band_fields, (const char **)band_fieldnames );
num_overview_fields = 2;
overview_fieldnames[0] = strdup ( "XSize" );
overview_fieldnames[1] = strdup ( "YSize" );
for ( band_number = 1; band_number <= raster_count; ++band_number ) { /* Loop over bands */
hBand = GDALGetRasterBand( hDataset, band_number );
mxtmp = mxCreateDoubleScalar ( (double) GDALGetRasterBandXSize( hBand ) );
mxSetField ( band_struct, 0, "XSize", mxtmp );
mxtmp = mxCreateDoubleScalar ( (double) GDALGetRasterBandYSize( hBand ) );
mxSetField ( band_struct, 0, "YSize", mxtmp );
gdal_type = GDALGetRasterDataType ( hBand );
mxtmp = mxCreateString ( GDALGetDataTypeName ( (GDALDataType)gdal_type ) );
mxSetField ( band_struct, 0, (const char *) "DataType", mxtmp );
tmpdble = GDALGetRasterNoDataValue ( hBand, &status );
mxtmp = mxCreateDoubleScalar ( (double) (GDALGetRasterNoDataValue ( hBand, &status ) ) );
mxSetField ( band_struct, 0, "NoDataValue", mxtmp );
num_overviews = GDALGetOverviewCount( hBand ); /* Can have multiple overviews per band. */
if ( num_overviews > 0 ) {
overview_struct = mxCreateStructMatrix ( num_overviews, 1, num_overview_fields,
(const char **)overview_fieldnames );
for ( overview = 0; overview < num_overviews; ++overview ) {
overview_hBand = GDALGetOverview ( hBand, overview );
xSize = GDALGetRasterBandXSize ( overview_hBand );
mxtmp = mxCreateDoubleScalar ( xSize );
mxSetField ( overview_struct, overview, "XSize", mxtmp );
ySize = GDALGetRasterBandYSize ( overview_hBand );
mxtmp = mxCreateDoubleScalar ( ySize );
mxSetField ( overview_struct, overview, "YSize", mxtmp );
}
mxSetField ( band_struct, 0, "Overview", overview_struct );
}
}
mxSetField ( metadata_struct, 0, "Band", band_struct );
/* Record the GMT header. This will be interleaved with "corners" because they share somes values */
mxGMT_header = mxCreateNumericMatrix(1, 9, mxDOUBLE_CLASS, mxREAL);
dptr2 = mxGetPr(mxGMT_header);
/* Record corners. */
num_corner_fields = 4;
corner_fieldnames[0] = strdup ("LL");
corner_fieldnames[1] = strdup ("UL");
corner_fieldnames[2] = strdup ("UR");
corner_fieldnames[3] = strdup ("LR");
corner_struct = mxCreateStructMatrix(1, 1, num_corner_fields, (const char **)corner_fieldnames);
dims[0] = 1; dims[1] = 2;
ReportCorner(hDataset, 0.0, GDALGetRasterYSize(hDataset), xy_c); /* Lower Left */
mxCorners = mxCreateNumericArray (2,dims,mxDOUBLE_CLASS, mxREAL);
dptr = mxGetPr(mxCorners);
dptr[0] = xy_c[0]; dptr[1] = xy_c[1];
dptr2[0] = xy_c[0]; dptr2[2] = xy_c[1]; /* xmin, ymin */
mxSetField(corner_struct, 0, "LL", mxCorners );
ReportCorner(hDataset, 0.0, 0.0, xy_c); /* Upper Left */
mxCorners = mxCreateNumericArray (2,dims,mxDOUBLE_CLASS, mxREAL);
dptr = mxGetPr(mxCorners);
dptr[0] = xy_c[0]; dptr[1] = xy_c[1];
mxSetField(corner_struct, 0, "UL", mxCorners );
ReportCorner(hDataset, GDALGetRasterXSize(hDataset), 0.0, xy_c); /* Upper Rigt */
mxCorners = mxCreateNumericArray (2,dims,mxDOUBLE_CLASS, mxREAL);
dptr = mxGetPr(mxCorners);
dptr[0] = xy_c[0]; dptr[1] = xy_c[1];
dptr2[1] = xy_c[0]; dptr2[3] = xy_c[1]; /* xmax, ymax */
mxSetField(corner_struct, 0, "UR", mxCorners );
ReportCorner(hDataset, GDALGetRasterXSize(hDataset), GDALGetRasterYSize(hDataset), xy_c); /* Lower Rigt */
mxCorners = mxCreateNumericArray (2,dims,mxDOUBLE_CLASS, mxREAL);
dptr = mxGetPr(mxCorners);
dptr[0] = xy_c[0]; dptr[1] = xy_c[1];
mxSetField(corner_struct, 0, "LR", mxCorners );
mxSetField (metadata_struct, 0, "Corners", corner_struct);
/* Fill in the rest of the GMT header values */
if (z_min == 1e50) { /* We don't know yet the dataset Min/Max */
adfMinMax[0] = GDALGetRasterMinimum( hBand, &bGotMin );
adfMinMax[1] = GDALGetRasterMaximum( hBand, &bGotMax );
if(!(bGotMin && bGotMax))
GDALComputeRasterMinMax( hBand, TRUE, adfMinMax );
dptr2[4] = adfMinMax[0];
dptr2[5] = adfMinMax[1];
}
else {
dptr2[4] = z_min;
dptr2[5] = z_max;
}
dptr2[6] = 0;
dptr2[7] = adfGeoTransform[1];
dptr2[8] = fabs(adfGeoTransform[5]);
if (correct_bounds) {
dptr2[0] += dptr2[7] / 2; dptr2[1] -= dptr2[7] / 2;
dptr2[2] += dptr2[8] / 2; dptr2[3] -= dptr2[8] / 2;
}
mxSetField (metadata_struct, 0, "GMT_hdr", mxGMT_header);
return ( metadata_struct );
}
