bool QgsImageWarper::openSrcDSAndGetWarpOpt( const QString &input, const ResamplingMethod &resampling,
const GDALTransformerFunc &pfnTransform,
GDALDatasetH &hSrcDS, GDALWarpOptions *&psWarpOptions )
{
// Open input file
GDALAllRegister();
hSrcDS = GDALOpen( TO8F( input ), GA_ReadOnly );
if ( !hSrcDS )
return false;
// Setup warp options.
psWarpOptions = GDALCreateWarpOptions();
psWarpOptions->hSrcDS = hSrcDS;
psWarpOptions->nBandCount = GDALGetRasterCount( hSrcDS );
psWarpOptions->panSrcBands =
( int * ) CPLMalloc( sizeof( int ) * psWarpOptions->nBandCount );
psWarpOptions->panDstBands =
( int * ) CPLMalloc( sizeof( int ) * psWarpOptions->nBandCount );
for ( int i = 0; i < psWarpOptions->nBandCount; ++i )
{
psWarpOptions->panSrcBands[i] = i + 1;
psWarpOptions->panDstBands[i] = i + 1;
}
psWarpOptions->pfnProgress = GDALTermProgress;
psWarpOptions->pfnTransformer = pfnTransform;
psWarpOptions->eResampleAlg = GDALResampleAlg( resampling );
return true;
}
/**
* GDALReprojectImage() method with a ChunkAndWarpImage replaced with ChunkAndWarpMulti
*/
CPLErr GDALReprojectImageMulti( GDALDatasetH hSrcDS, const char *pszSrcWKT,
GDALDatasetH hDstDS, const char *pszDstWKT,
GDALResampleAlg eResampleAlg,
double dfWarpMemoryLimit,
double dfMaxError,
GDALProgressFunc pfnProgress, void *pProgressArg,
GDALWarpOptions *psOptions )
{
GDALWarpOptions *psWOptions;
/* -------------------------------------------------------------------- */
/* Setup a reprojection based transformer. */
/* -------------------------------------------------------------------- */
void *hTransformArg;
hTransformArg =
GDALCreateGenImgProjTransformer( hSrcDS, pszSrcWKT, hDstDS, pszDstWKT,
TRUE, 1000.0, 0 );
if( hTransformArg == NULL )
return CE_Failure;
/* -------------------------------------------------------------------- */
/* Create a copy of the user provided options, or a defaulted */
/* options structure. */
/* -------------------------------------------------------------------- */
if( psOptions == NULL )
psWOptions = GDALCreateWarpOptions();
else
psWOptions = GDALCloneWarpOptions( psOptions );
psWOptions->eResampleAlg = eResampleAlg;
/* -------------------------------------------------------------------- */
/* Set transform. */
/* -------------------------------------------------------------------- */
if( dfMaxError > 0.0 )
{
psWOptions->pTransformerArg =
GDALCreateApproxTransformer( GDALGenImgProjTransform,
hTransformArg, dfMaxError );
psWOptions->pfnTransformer = GDALApproxTransform;
}
else
{
psWOptions->pfnTransformer = GDALGenImgProjTransform;
psWOptions->pTransformerArg = hTransformArg;
}
/* -------------------------------------------------------------------- */
/* Set file and band mapping. */
/* -------------------------------------------------------------------- */
int iBand;
psWOptions->hSrcDS = hSrcDS;
psWOptions->hDstDS = hDstDS;
if( psWOptions->nBandCount == 0 )
{
psWOptions->nBandCount = MIN(GDALGetRasterCount(hSrcDS),
GDALGetRasterCount(hDstDS));
psWOptions->panSrcBands = (int *)
CPLMalloc(sizeof(int) * psWOptions->nBandCount);
psWOptions->panDstBands = (int *)
CPLMalloc(sizeof(int) * psWOptions->nBandCount);
for( iBand = 0; iBand < psWOptions->nBandCount; iBand++ )
{
psWOptions->panSrcBands[iBand] = iBand+1;
psWOptions->panDstBands[iBand] = iBand+1;
}
}
/* -------------------------------------------------------------------- */
/* Set source nodata values if the source dataset seems to have */
/* any. Same for target nodata values */
/* -------------------------------------------------------------------- */
for( iBand = 0; iBand < psWOptions->nBandCount; iBand++ )
{
GDALRasterBandH hBand = GDALGetRasterBand( hSrcDS, iBand+1 );
int bGotNoData = FALSE;
double dfNoDataValue;
if (GDALGetRasterColorInterpretation(hBand) == GCI_AlphaBand)
{
psWOptions->nSrcAlphaBand = iBand + 1;
}
dfNoDataValue = GDALGetRasterNoDataValue( hBand, &bGotNoData );
if( bGotNoData )
{
if( psWOptions->padfSrcNoDataReal == NULL )
{
int ii;
psWOptions->padfSrcNoDataReal = (double *)
CPLMalloc(sizeof(double) * psWOptions->nBandCount);
psWOptions->padfSrcNoDataImag = (double *)
CPLMalloc(sizeof(double) * psWOptions->nBandCount);
for( ii = 0; ii < psWOptions->nBandCount; ii++ )
{
psWOptions->padfSrcNoDataReal[ii] = -1.1e20;
psWOptions->padfSrcNoDataImag[ii] = 0.0;
}
}
psWOptions->padfSrcNoDataReal[iBand] = dfNoDataValue;
}
// Deal with target band
hBand = GDALGetRasterBand( hDstDS, iBand+1 );
if (hBand && GDALGetRasterColorInterpretation(hBand) == GCI_AlphaBand)
{
psWOptions->nDstAlphaBand = iBand + 1;
}
dfNoDataValue = GDALGetRasterNoDataValue( hBand, &bGotNoData );
if( bGotNoData )
{
if( psWOptions->padfDstNoDataReal == NULL )
{
int ii;
psWOptions->padfDstNoDataReal = (double *)
CPLMalloc(sizeof(double) * psWOptions->nBandCount);
psWOptions->padfDstNoDataImag = (double *)
CPLMalloc(sizeof(double) * psWOptions->nBandCount);
for( ii = 0; ii < psWOptions->nBandCount; ii++ )
{
psWOptions->padfDstNoDataReal[ii] = -1.1e20;
psWOptions->padfDstNoDataImag[ii] = 0.0;
}
}
psWOptions->padfDstNoDataReal[iBand] = dfNoDataValue;
}
}
/* -------------------------------------------------------------------- */
/* Set the progress function. */
/* -------------------------------------------------------------------- */
if( pfnProgress != NULL )
{
psWOptions->pfnProgress = pfnProgress;
psWOptions->pProgressArg = pProgressArg;
}
/* -------------------------------------------------------------------- */
/* Create a warp options based on the options. */
/* -------------------------------------------------------------------- */
GDALWarpOperation oWarper;
CPLErr eErr;
eErr = oWarper.Initialize( psWOptions );
if( eErr == CE_None )
eErr = oWarper.ChunkAndWarpMulti( 0, 0,
GDALGetRasterXSize(hDstDS),
GDALGetRasterYSize(hDstDS) );
/* -------------------------------------------------------------------- */
/* Cleanup. */
/* -------------------------------------------------------------------- */
GDALDestroyGenImgProjTransformer( hTransformArg );
if( dfMaxError > 0.0 )
GDALDestroyApproxTransformer( psWOptions->pTransformerArg );
GDALDestroyWarpOptions( psWOptions );
return eErr;
}
int main( int nArgc, char ** papszArgv )
{
// register drivers
GDALAllRegister();
if( nArgc < 2 )
return EXIT_FAILURE;
double dfaCornersX[5] = {0};
double dfaCornersY[5] = {0};
CPLString sFileName;
// parse input values
for( int iArg = 1; iArg < nArgc; iArg++ )
{
if( EQUAL(papszArgv[iArg],"-nw"))
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
const char* pszCoord = papszArgv[++iArg];
dfaCornersY[1] = CPLAtofM(pszCoord);
pszCoord = papszArgv[++iArg];
dfaCornersX[1] = CPLAtofM(pszCoord);
}
else if( EQUAL(papszArgv[iArg],"-ne"))
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
const char* pszCoord = papszArgv[++iArg];
dfaCornersY[2] = CPLAtofM(pszCoord);
pszCoord = papszArgv[++iArg];
dfaCornersX[2] = CPLAtofM(pszCoord);
}
else if( EQUAL(papszArgv[iArg],"-se"))
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
const char* pszCoord = papszArgv[++iArg];
dfaCornersY[3] = CPLAtofM(pszCoord);
pszCoord = papszArgv[++iArg];
dfaCornersX[3] = CPLAtofM(pszCoord);
}
else if( EQUAL(papszArgv[iArg],"-sw"))
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
const char* pszCoord = papszArgv[++iArg];
dfaCornersY[4] = CPLAtofM(pszCoord);
pszCoord = papszArgv[++iArg];
dfaCornersX[4] = CPLAtofM(pszCoord);
}
else if( EQUAL(papszArgv[iArg],"-c"))
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
const char* pszCoord = papszArgv[++iArg];
dfaCornersY[0] = CPLAtofM(pszCoord);
pszCoord = papszArgv[++iArg];
dfaCornersX[0] = CPLAtofM(pszCoord);
}
else if(sFileName.empty())
sFileName = papszArgv[iArg];
}
OGRSpatialReference oOGRSpatialReference(SRS_WKT_WGS84);
int nZoneNo = ceil( (180.0 + dfaCornersX[0]) / 6.0 );
OGRSpatialReference oDstSpatialReference(SRS_WKT_WGS84);
oDstSpatialReference.SetUTM(nZoneNo, dfaCornersY[0] > 0);
// transform coordinates from WGS84 to UTM
OGRCoordinateTransformation *poCT = OGRCreateCoordinateTransformation( &oOGRSpatialReference, &oDstSpatialReference);
if(!poCT)
{
Usage("get coordinate transformation failed");
return EXIT_FAILURE;
}
int nResult = poCT->Transform(5, dfaCornersX, dfaCornersY, NULL);
if(!nResult)
{
Usage("transformation failed");
return EXIT_FAILURE;
}
// open input dataset
GDALDataset *poSrcDataset = (GDALDataset *) GDALOpen( sFileName, GA_ReadOnly ); // GA_Update
char* pszSpaRefDef = NULL;
if( oDstSpatialReference.exportToWkt(&pszSpaRefDef) != OGRERR_NONE)
{
CPLFree( pszSpaRefDef );
GDALClose( (GDALDatasetH) poSrcDataset );
return EXIT_FAILURE;
}
// search point along image
// add GCP to opened raster
OGRPoint ptCenter(dfaCornersX[0], dfaCornersY[0]);
OGRPoint pt1(dfaCornersX[1], dfaCornersY[1]); // NW Cormer
OGRPoint pt2(dfaCornersX[2], dfaCornersY[2]); // NE Corner
OGRPoint pt3(dfaCornersX[3], dfaCornersY[3]); // SE Corner
OGRPoint pt4(dfaCornersX[4], dfaCornersY[4]); // SW Corner
int nGCPCount = 0;
OGREnvelope DstEnv;
GDAL_GCP *paGSPs = PrepareGCP(sFileName, &pt1, &pt2, &pt3, &pt4, &ptCenter, oDstSpatialReference, poSrcDataset->GetRasterXSize(), poSrcDataset->GetRasterYSize(), nGCPCount, DstEnv);
if(poSrcDataset->SetGCPs(nGCPCount, paGSPs, pszSpaRefDef) != CE_None)
{
Usage( "Set GCPs failed" );
return EXIT_FAILURE;
}
// create warper
char **papszTO = NULL;
papszTO = CSLSetNameValue( papszTO, "METHOD", "GCP_TPS" );
papszTO = CSLSetNameValue( papszTO, "NUM_THREADS", "4" );
papszTO = CSLSetNameValue( papszTO, "DST_SRS", pszSpaRefDef );
papszTO = CSLSetNameValue( papszTO, "SRC_SRS", pszSpaRefDef );
papszTO = CSLSetNameValue( papszTO, "INSERT_CENTER_LONG", "FALSE" );
GDALDriver *poOutputDriver = (GDALDriver *) GDALGetDriverByName( "GTiff" );
CPLSetConfigOption( "CHECK_WITH_INVERT_PROJ", "TRUE" );
void* hTransformArg = GDALCreateGenImgProjTransformer2( poSrcDataset, NULL, papszTO );
GDALTransformerInfo* psInfo = (GDALTransformerInfo*)hTransformArg;
double adfThisGeoTransform[6];
double adfExtent[4];
int nThisPixels, nThisLines;
// suggest the raster output size
if( GDALSuggestedWarpOutput2( poSrcDataset, psInfo->pfnTransform, hTransformArg, adfThisGeoTransform, &nThisPixels, &nThisLines, adfExtent, 0 ) != CE_None )
{
Usage( "Suggest Output failed" );
return EXIT_FAILURE;
}
adfThisGeoTransform[0] = DstEnv.MinX;
adfThisGeoTransform[3] = DstEnv.MaxY;
int nPixels = (int) ((DstEnv.MaxX - DstEnv.MinX) / adfThisGeoTransform[1] + 0.5);
int nLines = (int) ((DstEnv.MaxY - DstEnv.MinY) / -adfThisGeoTransform[5] + 0.5);
GDALSetGenImgProjTransformerDstGeoTransform( hTransformArg, adfThisGeoTransform);
// create new raster
CPLString sOutputRasterPath = CPLResetExtension(sFileName, "tif");
GDALDataset *poDstDataset = poOutputDriver->Create(sOutputRasterPath, nPixels, nLines, poSrcDataset->GetRasterCount(), GDT_Byte, NULL );
if( NULL == poDstDataset )
{
Usage( "Create Output failed" );
return EXIT_FAILURE;
}
poDstDataset->SetProjection( pszSpaRefDef );
poDstDataset->SetGeoTransform( adfThisGeoTransform );
#ifdef APRROX_MAXERROR
hTransformArg = GDALCreateApproxTransformer( GDALGenImgProjTransform, hTransformArg, APRROX_MAXERROR);
GDALTransformerFunc pfnTransformer = GDALApproxTransform;
GDALApproxTransformerOwnsSubtransformer(hTransformArg, TRUE);
#else
GDALTransformerFunc pfnTransformer = GDALGenImgProjTransform;
#endif // APRROX_MAXERROR
// warp
GDALWarpOptions *psWO = GDALCreateWarpOptions();
psWO->eWorkingDataType = GDT_Byte;
psWO->eResampleAlg = GRA_NearestNeighbour;
psWO->hSrcDS = poSrcDataset;
psWO->hDstDS = poDstDataset;
psWO->pfnTransformer = pfnTransformer;
psWO->pTransformerArg = hTransformArg;
psWO->pfnProgress = GDALTermProgress;
psWO->nBandCount = poSrcDataset->GetRasterCount();
psWO->panSrcBands = (int *) CPLMalloc(psWO->nBandCount*sizeof(int));
psWO->panDstBands = (int *) CPLMalloc(psWO->nBandCount*sizeof(int));
for(int i = 0; i < psWO->nBandCount; ++i )
{
psWO->panSrcBands[i] = i+1;
psWO->panDstBands[i] = i+1;
}
GDALWarpOperation oWO;
if( oWO.Initialize( psWO ) == CE_None )
{
#ifdef MULTI
if( oWO.ChunkAndWarpMulti( 0, 0, poDstDataset->GetRasterXSize(), poDstDataset->GetRasterYSize() ) != CE_None)
#else //MULTI
if( oWO.ChunkAndWarpImage( 0, 0, poDstDataset->GetRasterXSize(), poDstDataset->GetRasterYSize() ) != CE_None)
#endif //MULTI
{
const char* err = CPLGetLastErrorMsg();
Usage( CPLSPrintf("Warp failed.%s", err) );
return EXIT_FAILURE;
}
}
// cleanup
GDALDestroyWarpOptions( psWO );
CSLDestroy( papszTO );
CPLFree( pszSpaRefDef );
GDALClose( (GDALDatasetH) poSrcDataset );
GDALClose( (GDALDatasetH) poDstDataset );
GDALDestroyDriverManager();
return EXIT_SUCCESS;
}
bool QgsAlignRaster::createAndWarp( const Item& raster )
{
GDALDriverH hDriver = GDALGetDriverByName( "GTiff" );
if ( !hDriver )
{
mErrorMessage = QString( "GDALGetDriverByName(GTiff) failed." );
return false;
}
// Open the source file.
GDALDatasetH hSrcDS = GDALOpen( raster.inputFilename.toLocal8Bit().constData(), GA_ReadOnly );
if ( !hSrcDS )
{
mErrorMessage = QObject::tr( "Unable to open input file: " ) + raster.inputFilename;
return false;
}
// Create output with same datatype as first input band.
int bandCount = GDALGetRasterCount( hSrcDS );
GDALDataType eDT = GDALGetRasterDataType( GDALGetRasterBand( hSrcDS, 1 ) );
// Create the output file.
GDALDatasetH hDstDS;
hDstDS = GDALCreate( hDriver, raster.outputFilename.toLocal8Bit().constData(), mXSize, mYSize,
bandCount, eDT, NULL );
if ( !hDstDS )
{
GDALClose( hSrcDS );
mErrorMessage = QObject::tr( "Unable to create output file: " ) + raster.outputFilename;
return false;
}
// Write out the projection definition.
GDALSetProjection( hDstDS, mCrsWkt.toAscii().constData() );
GDALSetGeoTransform( hDstDS, ( double* )mGeoTransform );
// Copy the color table, if required.
GDALColorTableH hCT = GDALGetRasterColorTable( GDALGetRasterBand( hSrcDS, 1 ) );
if ( hCT != NULL )
GDALSetRasterColorTable( GDALGetRasterBand( hDstDS, 1 ), hCT );
// -----------------------------------------------------------------------
// Setup warp options.
GDALWarpOptions* psWarpOptions = GDALCreateWarpOptions();
psWarpOptions->hSrcDS = hSrcDS;
psWarpOptions->hDstDS = hDstDS;
psWarpOptions->nBandCount = GDALGetRasterCount( hSrcDS );
psWarpOptions->panSrcBands = ( int * ) CPLMalloc( sizeof( int ) * psWarpOptions->nBandCount );
psWarpOptions->panDstBands = ( int * ) CPLMalloc( sizeof( int ) * psWarpOptions->nBandCount );
for ( int i = 0; i < psWarpOptions->nBandCount; ++i )
{
psWarpOptions->panSrcBands[i] = i + 1;
psWarpOptions->panDstBands[i] = i + 1;
}
psWarpOptions->eResampleAlg = ( GDALResampleAlg ) raster.resampleMethod;
// our progress function
psWarpOptions->pfnProgress = _progress;
psWarpOptions->pProgressArg = this;
// Establish reprojection transformer.
psWarpOptions->pTransformerArg =
GDALCreateGenImgProjTransformer( hSrcDS, GDALGetProjectionRef( hSrcDS ),
hDstDS, GDALGetProjectionRef( hDstDS ),
FALSE, 0.0, 1 );
psWarpOptions->pfnTransformer = GDALGenImgProjTransform;
double rescaleArg[2];
if ( raster.rescaleValues )
{
rescaleArg[0] = raster.srcCellSizeInDestCRS; // source cell size
rescaleArg[1] = mCellSizeX * mCellSizeY; // destination cell size
psWarpOptions->pfnPreWarpChunkProcessor = rescalePreWarpChunkProcessor;
psWarpOptions->pfnPostWarpChunkProcessor = rescalePostWarpChunkProcessor;
psWarpOptions->pPreWarpProcessorArg = rescaleArg;
psWarpOptions->pPostWarpProcessorArg = rescaleArg;
// force use of float32 data type as that is what our pre/post-processor uses
psWarpOptions->eWorkingDataType = GDT_Float32;
}
// Initialize and execute the warp operation.
GDALWarpOperation oOperation;
oOperation.Initialize( psWarpOptions );
oOperation.ChunkAndWarpImage( 0, 0, mXSize, mYSize );
GDALDestroyGenImgProjTransformer( psWarpOptions->pTransformerArg );
GDALDestroyWarpOptions( psWarpOptions );
GDALClose( hDstDS );
GDALClose( hSrcDS );
return true;
}
/**
* Sets the surface grids based on a ncepNam (surface only!) forecast.
* @param input The WindNinjaInputs for misc. info.
* @param airGrid The air temperature grid to be filled.
* @param cloudGrid The cloud cover grid to be filled.
* @param uGrid The u velocity grid to be filled.
* @param vGrid The v velocity grid to be filled.
* @param wGrid The w velocity grid to be filled (filled with zeros here?).
*/
void genericSurfInitialization::setSurfaceGrids( WindNinjaInputs &input,
AsciiGrid<double> &airGrid,
AsciiGrid<double> &cloudGrid,
AsciiGrid<double> &uGrid,
AsciiGrid<double> &vGrid,
AsciiGrid<double> &wGrid )
{
int bandNum = -1;
//get time list
std::vector<boost::local_time::local_date_time> timeList( getTimeList(input.ninjaTimeZone) );
//Search time list for our time to identify our band number for cloud/speed/dir
for(unsigned int i = 0; i < timeList.size(); i++)
{
if(input.ninjaTime == timeList[i])
{
bandNum = i + 1;
break;
}
}
if(bandNum < 0)
throw std::runtime_error("Could not match ninjaTime with a band number in the forecast file.");
//get some info from the nam file in input
//Acquire a lock to protect the non-thread safe netCDF library
#ifdef _OPENMP
omp_guard netCDF_guard(netCDF_lock);
#endif
GDALDataset* poDS;
//attempt to grab the projection from the dem?
//check for member prjString first
std::string dstWkt;
dstWkt = input.dem.prjString;
if ( dstWkt.empty() ) {
//try to open original
poDS = (GDALDataset*)GDALOpen( input.dem.fileName.c_str(), GA_ReadOnly );
if( poDS == NULL ) {
CPLDebug( "ncepNdfdInitialization::setSurfaceGrids()",
"Bad projection reference" );
//throw();
}
dstWkt = poDS->GetProjectionRef();
if( dstWkt.empty() ) {
CPLDebug( "ncepNdfdInitialization::setSurfaceGrids()",
"Bad projection reference" );
//throw()
}
GDALClose((GDALDatasetH) poDS );
}
poDS = (GDALDataset*)GDALOpen( input.forecastFilename.c_str(), GA_ReadOnly );
if( poDS == NULL ) {
CPLDebug( "ncepNdfdInitialization::setSurfaceGrids()",
"Bad forecast file" );
}
else
GDALClose((GDALDatasetH) poDS );
// open ds one by one and warp, then write to grid
GDALDataset *srcDS, *wrpDS;
std::string temp;
std::string srcWkt;
std::vector<std::string> varList = getVariableList();
/*
* Set the initial values in the warped dataset to no data
*/
GDALWarpOptions* psWarpOptions;
for( unsigned int i = 0;i < varList.size();i++ ) {
temp = "NETCDF:" + input.forecastFilename + ":" + varList[i];
srcDS = (GDALDataset*)GDALOpenShared( temp.c_str(), GA_ReadOnly );
if( srcDS == NULL ) {
CPLDebug( "ncepNdfdInitialization::setSurfaceGrids()",
"Bad forecast file" );
}
srcWkt = srcDS->GetProjectionRef();
if( srcWkt.empty() ) {
CPLDebug( "ncepNdfdInitialization::setSurfaceGrids()",
"Bad forecast file" );
//throw
}
/*
* Grab the first band to get the nodata value for the variable,
* assume all bands have the same ndv
*/
GDALRasterBand *poBand = srcDS->GetRasterBand( 1 );
int pbSuccess;
double dfNoData = poBand->GetNoDataValue( &pbSuccess );
psWarpOptions = GDALCreateWarpOptions();
int nBandCount = srcDS->GetRasterCount();
psWarpOptions->nBandCount = nBandCount;
psWarpOptions->padfDstNoDataReal =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
psWarpOptions->padfDstNoDataImag =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
for( int b = 0;b < srcDS->GetRasterCount();b++ ) {
psWarpOptions->padfDstNoDataReal[b] = dfNoData;
psWarpOptions->padfDstNoDataImag[b] = dfNoData;
}
if( pbSuccess == false )
dfNoData = -9999.0;
psWarpOptions->papszWarpOptions =
CSLSetNameValue( psWarpOptions->papszWarpOptions,
"INIT_DEST", "NO_DATA" );
wrpDS = (GDALDataset*) GDALAutoCreateWarpedVRT( srcDS, srcWkt.c_str(),
dstWkt.c_str(),
GRA_NearestNeighbour,
1.0, psWarpOptions );
if( varList[i] == "Temperature_height_above_ground" ) {
GDAL2AsciiGrid( wrpDS, bandNum, airGrid );
if( CPLIsNan( dfNoData ) ) {
airGrid.set_noDataValue(-9999.0);
airGrid.replaceNan( -9999.0 );
}
}
else if( varList[i] == "V-component_of_wind_height_above_ground" ) {
GDAL2AsciiGrid( wrpDS, bandNum, vGrid );
if( CPLIsNan( dfNoData ) ) {
vGrid.set_noDataValue(-9999.0);
vGrid.replaceNan( -9999.0 );
}
}
else if( varList[i] == "U-component_of_wind_height_above_ground" ) {
GDAL2AsciiGrid( wrpDS, bandNum, uGrid );
if( CPLIsNan( dfNoData ) ) {
uGrid.set_noDataValue(-9999.0);
uGrid.replaceNan( -9999.0 );
}
}
else if( varList[i] == "Total_cloud_cover" ) {
GDAL2AsciiGrid( wrpDS, bandNum, cloudGrid );
if( CPLIsNan( dfNoData ) ) {
cloudGrid.set_noDataValue(-9999.0);
cloudGrid.replaceNan( -9999.0 );
}
}
GDALDestroyWarpOptions( psWarpOptions );
GDALClose((GDALDatasetH) srcDS );
GDALClose((GDALDatasetH) wrpDS );
}
cloudGrid /= 100.0;
wGrid.set_headerData( uGrid );
wGrid = 0.0;
}
GDALDatasetH CPL_STDCALL
GDALAutoCreateWarpedVRT( GDALDatasetH hSrcDS,
const char *pszSrcWKT,
const char *pszDstWKT,
GDALResampleAlg eResampleAlg,
double dfMaxError,
const GDALWarpOptions *psOptionsIn )
{
GDALWarpOptions *psWO;
int i;
VALIDATE_POINTER1( hSrcDS, "GDALAutoCreateWarpedVRT", NULL );
/* -------------------------------------------------------------------- */
/* Populate the warp options. */
/* -------------------------------------------------------------------- */
if( psOptionsIn != NULL )
psWO = GDALCloneWarpOptions( psOptionsIn );
else
psWO = GDALCreateWarpOptions();
psWO->eResampleAlg = eResampleAlg;
psWO->hSrcDS = hSrcDS;
psWO->nBandCount = GDALGetRasterCount( hSrcDS );
psWO->panSrcBands = (int *) CPLMalloc(sizeof(int) * psWO->nBandCount);
psWO->panDstBands = (int *) CPLMalloc(sizeof(int) * psWO->nBandCount);
for( i = 0; i < psWO->nBandCount; i++ )
{
psWO->panSrcBands[i] = i+1;
psWO->panDstBands[i] = i+1;
}
/* TODO: should fill in no data where available */
/* -------------------------------------------------------------------- */
/* Create the transformer. */
/* -------------------------------------------------------------------- */
psWO->pfnTransformer = GDALGenImgProjTransform;
psWO->pTransformerArg =
GDALCreateGenImgProjTransformer( psWO->hSrcDS, pszSrcWKT,
NULL, pszDstWKT,
TRUE, 1.0, 0 );
if( psWO->pTransformerArg == NULL )
{
GDALDestroyWarpOptions( psWO );
return NULL;
}
/* -------------------------------------------------------------------- */
/* Figure out the desired output bounds and resolution. */
/* -------------------------------------------------------------------- */
double adfDstGeoTransform[6];
int nDstPixels, nDstLines;
CPLErr eErr;
eErr =
GDALSuggestedWarpOutput( hSrcDS, psWO->pfnTransformer,
psWO->pTransformerArg,
adfDstGeoTransform, &nDstPixels, &nDstLines );
/* -------------------------------------------------------------------- */
/* Update the transformer to include an output geotransform */
/* back to pixel/line coordinates. */
/* */
/* -------------------------------------------------------------------- */
GDALSetGenImgProjTransformerDstGeoTransform(
psWO->pTransformerArg, adfDstGeoTransform );
/* -------------------------------------------------------------------- */
/* Do we want to apply an approximating transformation? */
/* -------------------------------------------------------------------- */
if( dfMaxError > 0.0 )
{
psWO->pTransformerArg =
GDALCreateApproxTransformer( psWO->pfnTransformer,
psWO->pTransformerArg,
dfMaxError );
psWO->pfnTransformer = GDALApproxTransform;
}
/* -------------------------------------------------------------------- */
/* Create the VRT file. */
/* -------------------------------------------------------------------- */
GDALDatasetH hDstDS;
hDstDS = GDALCreateWarpedVRT( hSrcDS, nDstPixels, nDstLines,
adfDstGeoTransform, psWO );
GDALDestroyWarpOptions( psWO );
if( pszDstWKT != NULL )
GDALSetProjection( hDstDS, pszDstWKT );
else if( pszSrcWKT != NULL )
GDALSetProjection( hDstDS, pszDstWKT );
else if( GDALGetGCPCount( hSrcDS ) > 0 )
GDALSetProjection( hDstDS, GDALGetGCPProjection( hSrcDS ) );
else
GDALSetProjection( hDstDS, GDALGetProjectionRef( hSrcDS ) );
return hDstDS;
}
/**
* Sets the surface grids based on a ncep HRRR (surface only!) forecast.
* @param input The WindNinjaInputs for misc. info.
* @param airGrid The air temperature grid to be filled.
* @param cloudGrid The cloud cover grid to be filled.
* @param uGrid The u velocity grid to be filled.
* @param vGrid The v velocity grid to be filled.
* @param wGrid The w velocity grid to be filled (filled with zeros here?).
*/
void ncepHrrrSurfInitialization::setSurfaceGrids( WindNinjaInputs &input,
AsciiGrid<double> &airGrid,
AsciiGrid<double> &cloudGrid,
AsciiGrid<double> &uGrid,
AsciiGrid<double> &vGrid,
AsciiGrid<double> &wGrid )
{
int bandNum = -1;
GDALDataset *srcDS;
srcDS = (GDALDataset*)GDALOpenShared( input.forecastFilename.c_str(), GA_ReadOnly );
if( srcDS == NULL ) {
CPLDebug( "ncepHRRRSurfaceInitialization::identify()",
"Bad forecast file" );
}
GDALRasterBand *poBand;
const char *gc;
//get time list
std::vector<boost::local_time::local_date_time> timeList( getTimeList( input.ninjaTimeZone ) );
//Search time list for our time to identify our band number for cloud/speed/dir
//Right now, just one time step per file
std::vector<int> bandList;
for(unsigned int i = 0; i < timeList.size(); i++)
{
if(input.ninjaTime == timeList[i])
{
for(unsigned int j = 1; j < srcDS->GetRasterCount(); j++)
{
poBand = srcDS->GetRasterBand( j );
gc = poBand->GetMetadataItem( "GRIB_COMMENT" );
std::string bandName( gc );
if( bandName.find( "Temperature [K]" ) != bandName.npos ){
gc = poBand->GetMetadataItem( "GRIB_SHORT_NAME" );
std::string bandName( gc );
if( bandName.find( "2-HTGL" ) != bandName.npos ){
bandList.push_back( j ); // 2t
break;
}
}
}
for(unsigned int j = 1; j < srcDS->GetRasterCount(); j++)
{
poBand = srcDS->GetRasterBand( j );
gc = poBand->GetMetadataItem( "GRIB_COMMENT" );
std::string bandName( gc );
if( bandName.find( "v-component of wind [m/s]" ) != bandName.npos ){
gc = poBand->GetMetadataItem( "GRIB_SHORT_NAME" );
std::string bandName( gc );
if( bandName.find( "10-HTGL" ) != bandName.npos ){
bandList.push_back( j ); // 10v
break;
}
}
}
for(unsigned int j = 1; j < srcDS->GetRasterCount(); j++)
{
poBand = srcDS->GetRasterBand( j );
gc = poBand->GetMetadataItem( "GRIB_COMMENT" );
std::string bandName( gc );
if( bandName.find( "u-component of wind [m/s]" ) != bandName.npos ){
gc = poBand->GetMetadataItem( "GRIB_SHORT_NAME" );
std::string bandName( gc );
if( bandName.find( "10-HTGL" ) != bandName.npos ){
bandList.push_back( j ); // 10u
break;
}
}
}
for(unsigned int j = 1; j < srcDS->GetRasterCount(); j++)
{
poBand = srcDS->GetRasterBand( j );
gc = poBand->GetMetadataItem( "GRIB_COMMENT" );
std::string bandName( gc );
if( bandName.find( "Total cloud cover [%]" ) != bandName.npos ){
gc = poBand->GetMetadataItem( "GRIB_SHORT_NAME" );
std::string bandName( gc );
if( bandName.find( "0-RESERVED" ) != bandName.npos ){
bandList.push_back( j ); // Total cloud cover in %
break;
}
}
}
}
}
CPLDebug("HRRR", "2t: bandList[0] = %d", bandList[0]);
CPLDebug("HRRR", "10v: bandList[1] = %d", bandList[1]);
CPLDebug("HRRR", "10u: bandList[2] = %d", bandList[2]);
CPLDebug("HRRR", "tcc: bandList[3] = %d", bandList[3]);
if(bandList.size() < 4)
throw std::runtime_error("Could not match ninjaTime with a band number in the forecast file.");
std::string dstWkt;
dstWkt = input.dem.prjString;
GDALDataset *wrpDS;
std::string temp;
std::string srcWkt;
GDALWarpOptions* psWarpOptions;
srcWkt = srcDS->GetProjectionRef();
poBand = srcDS->GetRasterBand( 9 );
int pbSuccess;
double dfNoData = poBand->GetNoDataValue( &pbSuccess );
psWarpOptions = GDALCreateWarpOptions();
int nBandCount = bandList.size();
psWarpOptions->nBandCount = nBandCount;
psWarpOptions->panSrcBands =
(int*) CPLMalloc( sizeof( int ) * nBandCount );
psWarpOptions->panDstBands =
(int*) CPLMalloc( sizeof( int ) * nBandCount );
psWarpOptions->padfDstNoDataReal =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
psWarpOptions->padfDstNoDataImag =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
psWarpOptions->padfDstNoDataReal =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
psWarpOptions->padfDstNoDataImag =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
if( pbSuccess == false )
dfNoData = -9999.0;
psWarpOptions->panSrcBands =
(int *) CPLMalloc(sizeof(int) * psWarpOptions->nBandCount );
psWarpOptions->panSrcBands[0] = bandList[0];
psWarpOptions->panSrcBands[1] = bandList[1];
psWarpOptions->panSrcBands[2] = bandList[2];
psWarpOptions->panSrcBands[3] = bandList[3];
psWarpOptions->panDstBands =
(int *) CPLMalloc(sizeof(int) * psWarpOptions->nBandCount );
psWarpOptions->panDstBands[0] = 1;
psWarpOptions->panDstBands[1] = 2;
psWarpOptions->panDstBands[2] = 3;
psWarpOptions->panDstBands[3] = 4;
wrpDS = (GDALDataset*) GDALAutoCreateWarpedVRT( srcDS, srcWkt.c_str(),
dstWkt.c_str(),
GRA_NearestNeighbour,
1.0, psWarpOptions );
std::vector<std::string> varList = getVariableList();
for( unsigned int i = 0; i < varList.size(); i++ ) {
if( varList[i] == "2t" ) {
GDAL2AsciiGrid( wrpDS, i+1, airGrid );
if( CPLIsNan( dfNoData ) ) {
airGrid.set_noDataValue( -9999.0 );
airGrid.replaceNan( -9999.0 );
}
}
else if( varList[i] == "10v" ) {
GDAL2AsciiGrid( wrpDS, i+1, vGrid );
if( CPLIsNan( dfNoData ) ) {
vGrid.set_noDataValue( -9999.0 );
vGrid.replaceNan( -9999.0 );
}
}
else if( varList[i] == "10u" ) {
GDAL2AsciiGrid( wrpDS, i+1, uGrid );
if( CPLIsNan( dfNoData ) ) {
uGrid.set_noDataValue( -9999.0 );
uGrid.replaceNan( -9999.0 );
}
}
else if( varList[i] == "tcc" ) {
GDAL2AsciiGrid( wrpDS, i+1, cloudGrid );
if( CPLIsNan( dfNoData ) ) {
cloudGrid.set_noDataValue( -9999.0 );
cloudGrid.replaceNan( -9999.0 );
}
}
}
//if there are any clouds set cloud fraction to 1, otherwise set to 0.
for(int i = 0; i < cloudGrid.get_nRows(); i++){
for(int j = 0; j < cloudGrid.get_nCols(); j++){
if(cloudGrid(i,j) < 0.0){
cloudGrid(i,j) = 0.0;
}
else{
cloudGrid(i,j) = 1.0;
}
}
}
wGrid.set_headerData( uGrid );
wGrid = 0.0;
airGrid += 273.15;
GDALDestroyWarpOptions( psWarpOptions );
GDALClose((GDALDatasetH) srcDS );
GDALClose((GDALDatasetH) wrpDS );
}
void QgsImageWarper::warp( const QString& input, const QString& output,
double& xOffset, double& yOffset,
ResamplingMethod resampling, bool useZeroAsTrans, const QString& compression )
{
// Open input file
GDALAllRegister();
GDALDatasetH hSrcDS = GDALOpen( QFile::encodeName( input ).constData(), GA_ReadOnly );
// Setup warp options.
GDALWarpOptions *psWarpOptions = GDALCreateWarpOptions();
psWarpOptions->hSrcDS = hSrcDS;
psWarpOptions->nBandCount = GDALGetRasterCount( hSrcDS );
psWarpOptions->panSrcBands =
( int * ) CPLMalloc( sizeof( int ) * psWarpOptions->nBandCount );
psWarpOptions->panDstBands =
( int * ) CPLMalloc( sizeof( int ) * psWarpOptions->nBandCount );
for ( int i = 0; i < psWarpOptions->nBandCount; ++i )
{
psWarpOptions->panSrcBands[i] = i + 1;
psWarpOptions->panDstBands[i] = i + 1;
}
psWarpOptions->pfnProgress = GDALTermProgress;
psWarpOptions->pfnTransformer = &QgsImageWarper::transform;
psWarpOptions->eResampleAlg = GDALResampleAlg( resampling );
// check the bounds for the warped raster
// order: upper right, lower right, lower left (y points down)
double x[] = { GDALGetRasterXSize( hSrcDS ), GDALGetRasterXSize( hSrcDS ), 0 };
double y[] = { 0, GDALGetRasterYSize( hSrcDS ), GDALGetRasterYSize( hSrcDS ) };
int s[] = { 0, 0, 0 };
TransformParameters tParam = { mAngle, 0, 0 };
transform( &tParam, FALSE, 3, x, y, NULL, s );
double minX = 0, minY = 0, maxX = 0, maxY = 0;
for ( int i = 0; i < 3; ++i )
{
minX = minX < x[i] ? minX : x[i];
minY = minY < y[i] ? minY : y[i];
maxX = maxX > x[i] ? maxX : x[i];
maxY = maxY > y[i] ? maxY : y[i];
}
int newXSize = int( maxX - minX ) + 1;
int newYSize = int( maxY - minY ) + 1;
xOffset = -minX;
yOffset = -minY;
tParam.x0 = xOffset;
tParam.y0 = yOffset;
psWarpOptions->pTransformerArg = &tParam;
// create the output file
GDALDriverH driver = GDALGetDriverByName( "GTiff" );
char **papszOptions = NULL;
papszOptions = CSLSetNameValue( papszOptions, "INIT_DEST", "NO_DATA" );
papszOptions = CSLSetNameValue( papszOptions, "COMPRESS", compression.toAscii() );
GDALDatasetH hDstDS =
GDALCreate( driver,
QFile::encodeName( output ).constData(), newXSize, newYSize,
GDALGetRasterCount( hSrcDS ),
GDALGetRasterDataType( GDALGetRasterBand( hSrcDS, 1 ) ),
papszOptions );
for ( int i = 0; i < GDALGetRasterCount( hSrcDS ); ++i )
{
GDALRasterBandH hSrcBand = GDALGetRasterBand( hSrcDS, i + 1 );
GDALRasterBandH hDstBand = GDALGetRasterBand( hDstDS, i + 1 );
GDALColorTableH cTable = GDALGetRasterColorTable( hSrcBand );
GDALSetRasterColorInterpretation( hDstBand, GDALGetRasterColorInterpretation( hSrcBand ) );
if ( cTable )
{
GDALSetRasterColorTable( hDstBand, cTable );
}
double noData = GDALGetRasterNoDataValue( hSrcBand, NULL );
if ( noData == -1e10 && useZeroAsTrans )
{
GDALSetRasterNoDataValue( hDstBand, 0 );
}
else
{
GDALSetRasterNoDataValue( hDstBand, noData );
}
}
psWarpOptions->hDstDS = hDstDS;
// Initialize and execute the warp operation.
GDALWarpOperation oOperation;
oOperation.Initialize( psWarpOptions );
oOperation.ChunkAndWarpImage( 0, 0, GDALGetRasterXSize( hDstDS ),
GDALGetRasterYSize( hDstDS ) );
GDALDestroyWarpOptions( psWarpOptions );
GDALClose( hSrcDS );
GDALClose( hDstDS );
}
/** 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);
}
/* Matlab Gateway routine */
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) {
int nXYSize;
double adfGeoTransform[6] = {0,1,0,0,0,1}, adfDstGeoTransform[6];
char *pszSRS_WKT = NULL;
char **papszWarpOptions = NULL;
GDALDatasetH hSrcDS, hDstDS;
GDALDriverH hDriver;
GDALRasterBandH hBand;
GDALColorTableH hColorTable = NULL;
OGRSpatialReference oSrcSRS, oDstSRS;
GDALResampleAlg interpMethod = GRA_NearestNeighbour;
GDALTransformerFunc pfnTransformer = NULL;
CPLErr eErr;
GDAL_GCP *pasGCPs = NULL;
static int runed_once = FALSE; /* It will be set to true if reaches end of main */
const int *dim_array;
int nx, ny, i, j, m, n, c, nBands, registration = 1;
int n_dims, typeCLASS, nBytes;
char *pszSrcSRS = NULL, *pszSrcWKT = NULL;
char *pszDstSRS = NULL, *pszDstWKT = NULL;
void *in_data;
mxArray *mx_ptr;
unsigned char *tmpByte, *outByte;
unsigned short int *tmpUI16, *outUI16;
short int *tmpI16, *outI16;
int *tmpI32, *outI32;
int nPixels=0, nLines=0, nForceWidth=0, nForceHeight=0;
int nGCPCount = 0, nOrder = 0;
unsigned int *tmpUI32, *outUI32;
float *tmpF32, *outF32;
double *tmpF64, *outF64, *ptr_d;
double dfMinX=0, dfMaxX=0, dfMinY=0, dfMaxY=0, dfResX=0, dfResY=0;
double adfExtent[4];
double dfXRes=0.0, dfYRes=0.0;
double dfWarpMemoryLimit = 0.0;
double *pdfDstNodata = NULL;
char **papszMetadataOptions = NULL;
char *tmp, *txt;
if (nrhs == 2 && mxIsStruct(prhs[1])) {
mx_ptr = mxGetField(prhs[1], 0, "ULx");
if (mx_ptr == NULL)
mexErrMsgTxt("GDALWARP 'ULx' field not provided");
ptr_d = mxGetPr(mx_ptr);
adfGeoTransform[0] = *ptr_d;
mx_ptr = mxGetField(prhs[1], 0, "Xinc");
if (mx_ptr == NULL)
mexErrMsgTxt("GDALWARP 'Xinc' field not provided");
ptr_d = mxGetPr(mx_ptr);
adfGeoTransform[1] = *ptr_d;
mx_ptr = mxGetField(prhs[1], 0, "ULy");
if (mx_ptr == NULL)
mexErrMsgTxt("GDALWARP 'ULy' field not provided");
ptr_d = mxGetPr(mx_ptr);
adfGeoTransform[3] = *ptr_d;
mx_ptr = mxGetField(prhs[1], 0, "Yinc");
if (mx_ptr == NULL)
mexErrMsgTxt("GDALWARP 'Yinc' field not provided");
ptr_d = mxGetPr(mx_ptr);
adfGeoTransform[5] = -*ptr_d;
/* -------- See for resolution requests ------------ */
mx_ptr = mxGetField(prhs[1], 0, "t_size");
if (mx_ptr != NULL) {
ptr_d = mxGetPr(mx_ptr);
if (mxGetN(mx_ptr) == 2) {
nForceWidth = (int)ptr_d[0];
nForceHeight = (int)ptr_d[1];
}
else if (mxGetN(mx_ptr) == 1) { /* pick max(nrow,ncol) */
if (mxGetM(prhs[0]) > getNK(prhs[0],1))
nForceHeight = mxGetM(prhs[0]);
else
nForceWidth = getNK(prhs[0], 1);
}
else {
nForceHeight = mxGetM(prhs[0]);
nForceWidth = getNK(prhs[0], 1);
}
}
mx_ptr = mxGetField(prhs[1], 0, "t_res");
if (mx_ptr != NULL) {
ptr_d = mxGetPr(mx_ptr);
if (mxGetN(mx_ptr) == 2) {
dfXRes = ptr_d[0];
dfYRes = ptr_d[1];
}
else if (mxGetN(mx_ptr) == 1) {
dfXRes = dfYRes = ptr_d[0];
}
}
/* -------------------------------------------------- */
/* -------- Change Warping cache size? ------------ */
mx_ptr = mxGetField(prhs[1], 0, "wm");
if (mx_ptr != NULL) {
ptr_d = mxGetPr(mx_ptr);
dfWarpMemoryLimit = *ptr_d * 1024 * 1024;
}
/* -------------------------------------------------- */
/* -------- Have a nodata value order? -------------- */
mx_ptr = mxGetField(prhs[1], 0, "nodata");
if (mx_ptr != NULL) {
pdfDstNodata = mxGetPr(mx_ptr);
}
/* -------------------------------------------------- */
/* -------- See for projection stuff ---------------- */
mx_ptr = mxGetField(prhs[1], 0, "SrcProjSRS");
if (mx_ptr != NULL)
pszSrcSRS = (char *)mxArrayToString(mx_ptr);
mx_ptr = mxGetField(prhs[1], 0, "SrcProjWKT");
if (mx_ptr != NULL)
pszSrcWKT = (char *)mxArrayToString(mx_ptr);
mx_ptr = mxGetField(prhs[1], 0, "DstProjSRS");
if (mx_ptr != NULL)
pszDstSRS = (char *)mxArrayToString(mx_ptr);
mx_ptr = mxGetField(prhs[1], 0, "DstProjWKT");
if (mx_ptr != NULL)
pszDstWKT = (char *)mxArrayToString(mx_ptr);
/* -------------------------------------------------- */
/* -------- Do we have GCPs? ----------------------- */
mx_ptr = mxGetField(prhs[1], 0, "gcp");
if (mx_ptr != NULL) {
nGCPCount = mxGetM(mx_ptr);
if (mxGetN(mx_ptr) != 4)
mexErrMsgTxt("GDALWARP: GCPs must be a Mx4 array");
ptr_d = mxGetPr(mx_ptr);
pasGCPs = (GDAL_GCP *) mxCalloc( nGCPCount, sizeof(GDAL_GCP) );
GDALInitGCPs( 1, pasGCPs + nGCPCount - 1 );
for (i = 0; i < nGCPCount; i++) {
pasGCPs[i].dfGCPPixel = ptr_d[i];
pasGCPs[i].dfGCPLine = ptr_d[i+nGCPCount];
pasGCPs[i].dfGCPX = ptr_d[i+2*nGCPCount];
pasGCPs[i].dfGCPY = ptr_d[i+3*nGCPCount];
pasGCPs[i].dfGCPZ = 0;
}
}
/* ---- Have we an order request? --- */
mx_ptr = mxGetField(prhs[1], 0, "order");
if (mx_ptr != NULL) {
ptr_d = mxGetPr(mx_ptr);
nOrder = (int)*ptr_d;
if (nOrder != -1 || nOrder != 0 || nOrder != 1 || nOrder != 2 || nOrder != 3)
nOrder = 0;
}
/* -------------------------------------------------- */
mx_ptr = mxGetField(prhs[1], 0, "ResampleAlg");
if (mx_ptr != NULL) {
txt = (char *)mxArrayToString(mx_ptr);
if (!strcmp(txt,"nearest"))
interpMethod = GRA_NearestNeighbour;
else if (!strcmp(txt,"bilinear"))
interpMethod = GRA_Bilinear;
else if (!strcmp(txt,"cubic") || !strcmp(txt,"bicubic"))
interpMethod = GRA_Cubic;
else if (!strcmp(txt,"spline"))
interpMethod = GRA_CubicSpline;
}
/* If grid limits were in grid registration, convert them to pixel reg */
mx_ptr = mxGetField(prhs[1], 0, "Reg");
if (mx_ptr != NULL) {
ptr_d = mxGetPr(mx_ptr);
registration = (int)ptr_d[0];
}
if (registration == 0) {
adfGeoTransform[0] -= adfGeoTransform[1]/2.;
adfGeoTransform[3] -= adfGeoTransform[5]/2.;
}
}
else {
mexPrintf("Usage: B = gdalwarp_mex(IMG,HDR_STRUCT)\n\n");
mexPrintf("\tIMG -> is a Mx2 or Mx3 array with an grid/image data to reproject\n");
mexPrintf("\tHDR_STRUCT -> is a structure with the following fields:\n");
mexPrintf("\t\t'ULx' X coordinate of the uper left corner\n");
mexPrintf("\t\t'ULy' Y coordinate of the uper left corner\n");
mexPrintf("\t\t'Xinc' distance between columns in target grid/image coordinates\n");
mexPrintf("\t\t'Yinc' distance between rows in target grid/image coordinates\n");
mexPrintf("\t\t'SrcProjSRS', 'SrcProjWKT' -> Source projection string\n");
mexPrintf("\t\t'DstProjSRS', 'DstProjWKT' -> Target projection string\n");
mexPrintf("\t\t\tSRS stands for a string of the type used by proj4\n");
mexPrintf("\t\t\tWKT stands for a string on the 'Well Known Text' format\n\n");
mexPrintf("\t\t\tIf one of the Src or Dst fields is absent a GEOGRAPHIC WGS84 is assumed\n");
mexPrintf("\nOPTIONS\n");
mexPrintf("\t\t'gcp' a [Mx4] array with Ground Control Points\n");
mexPrintf("\t\t't_size' a [width height] vector to set output file size in pixels\n");
mexPrintf("\t\t't_res' a [xres yres] vector to set output file resolution (in target georeferenced units)\n");
mexPrintf("\t\t'wm' amount of memory (in megabytes) that the warp API is allowed to use for caching\n");
mexPrintf("\t\t'nodata' Set nodata values for output bands.\n");
mexPrintf("\t\t'ResampleAlg' To set up the algorithm used during warp operation. Options are: \n");
mexPrintf("\t\t\t'nearest' Use nearest neighbour resampling (default, fastest algorithm, worst interpolation quality).\n");
mexPrintf("\t\t\t'bilinear' Use bilinear resampling.\n");
mexPrintf("\t\t\t'cubic' Use cubic resampling.\n");
mexPrintf("\t\t\t'spline' Use cubic spline resampling.\n\n");
if (!runed_once) /* Do next call only at first time this MEX is loaded */
GDALAllRegister();
mexPrintf( "The following format drivers are configured and support Create() method:\n" );
for( i = 0; i < GDALGetDriverCount(); i++ ) {
hDriver = GDALGetDriver(i);
if( GDALGetMetadataItem( hDriver, GDAL_DCAP_CREATE, NULL ) != NULL)
mexPrintf("%s: %s\n", GDALGetDriverShortName(hDriver),
GDALGetDriverLongName(hDriver));
}
return;
}
n_dims = mxGetNumberOfDimensions(prhs[0]);
dim_array=mxGetDimensions(prhs[0]);
ny = dim_array[0];
nx = dim_array[1];
nBands = dim_array[2];
if (n_dims == 2) /* Otherwise it would stay undefined */
nBands = 1;
/* Find out in which data type was given the input array */
if (mxIsUint8(prhs[0])) {
typeCLASS = GDT_Byte; nBytes = 1;
outByte = (unsigned char *)mxMalloc (nx*ny * sizeof(unsigned char));
}
else if (mxIsUint16(prhs[0])) {
typeCLASS = GDT_UInt16; nBytes = 2;
outUI16 = (unsigned short int *)mxMalloc (nx*ny * sizeof(short int));
}
else if (mxIsInt16(prhs[0])) {
typeCLASS = GDT_Int16; nBytes = 2;
outI16 = (short int *)mxMalloc (nx*ny * sizeof(short int));
}
else if (mxIsInt32(prhs[0])) {
typeCLASS = GDT_Int32; nBytes = 4;
outI32 = (int *)mxMalloc (nx*ny * sizeof(int));
}
else if (mxIsUint32(prhs[0])) {
typeCLASS = GDT_UInt32; nBytes = 4;
outUI32 = (unsigned int *)mxMalloc (nx*ny * sizeof(int));
}
else if (mxIsSingle(prhs[0])) {
typeCLASS = GDT_Float32; nBytes = 4;
outF32 = (float *)mxMalloc (nx*ny * sizeof(float));
}
else if (mxIsDouble(prhs[0])) {
typeCLASS = GDT_Float64; nBytes = 8;
outF64 = (double *)mxMalloc (nx*ny * sizeof(double));
}
else
mexErrMsgTxt("GDALWARP Unknown input data class!");
in_data = (void *)mxGetData(prhs[0]);
if (!runed_once) /* Do next call only at first time this MEX is loaded */
GDALAllRegister();
hDriver = GDALGetDriverByName( "MEM" );
hSrcDS = GDALCreate( hDriver, "mem", nx, ny, nBands, (GDALDataType)typeCLASS, NULL );
if (hSrcDS == NULL) {
mexPrintf ("GDALOpen failed - %d\n%s\n", CPLGetLastErrorNo(), CPLGetLastErrorMsg());
return;
}
GDALSetGeoTransform( hSrcDS, adfGeoTransform );
/* ---------- Set the Source projection ---------------------------- */
/* If it was not provided assume it is Geog WGS84 */
if (pszSrcSRS == NULL && pszSrcWKT == NULL)
oSrcSRS.SetWellKnownGeogCS( "WGS84" );
else if (pszSrcWKT != NULL)
oSrcSRS.importFromWkt( &pszSrcWKT );
else {
if( oSrcSRS.SetFromUserInput( pszSrcSRS ) != OGRERR_NONE )
mexErrMsgTxt("GDAL_WARP_MEX: Translating source SRS failed.");
}
if (pszSrcWKT == NULL)
oSrcSRS.exportToWkt( &pszSrcWKT );
GDALSetProjection( hSrcDS, pszSrcWKT );
//pszSrcWKT = (char *)GDALGetProjectionRef( hSrcDS );
CPLAssert( pszSrcWKT != NULL && strlen(pszSrcWKT) > 0 );
/* ------------------------------------------------------------------ */
/* -------------- Copy input data into the hSrcDS dataset ----------- */
for (i = 1; i <= nBands; i++) {
hBand = GDALGetRasterBand( hSrcDS, i );
nXYSize = (i-1)*nx*ny;
switch( typeCLASS ) {
case GDT_Byte:
tmpByte = (unsigned char *)in_data;
for (m = ny-1, c = 0; m >= 0; m--) for (n = 0; n < nx; n++)
outByte[c++] = tmpByte[m + n*ny + nXYSize];
GDALRasterIO( hBand, GF_Write, 0, 0, nx, ny,outByte, nx, ny, (GDALDataType)typeCLASS, 0, 0 );
break;
case GDT_UInt16:
tmpUI16 = (unsigned short int *)in_data;
for (m = ny-1, c = 0; m >= 0; m--) for (n = 0; n < nx; n++)
outUI16[c++] = tmpUI16[m + n*ny + nXYSize];
GDALRasterIO( hBand, GF_Write, 0, 0, nx, ny,outUI16, nx, ny, (GDALDataType)typeCLASS, 0, 0 );
break;
case GDT_Int16:
tmpI16 = (short int *)in_data;
for (m = ny-1, c = 0; m >= 0; m--) for (n = 0; n < nx; n++)
outI16[c++] = tmpI16[m + n*ny + nXYSize];
GDALRasterIO( hBand, GF_Write, 0, 0, nx, ny,outI16, nx, ny, (GDALDataType)typeCLASS, 0, 0 );
break;
case GDT_UInt32:
tmpUI32 = (unsigned int *)in_data;
for (m = ny-1, c = 0; m >= 0; m--) for (n = 0; n < nx; n++)
outUI32[c++] = tmpUI32[m + n*ny + nXYSize];
GDALRasterIO( hBand, GF_Write, 0, 0, nx, ny,outUI32, nx, ny, (GDALDataType)typeCLASS, 0, 0 );
break;
case GDT_Int32:
tmpI32 = (int *)in_data;
for (m = ny-1, c = 0; m >= 0; m--) for (n = 0; n < nx; n++)
outI32[c++] = tmpI32[m + n*ny + nXYSize];
GDALRasterIO( hBand, GF_Write, 0, 0, nx, ny,outI32, nx, ny, (GDALDataType)typeCLASS, 0, 0 );
break;
case GDT_Float32:
tmpF32 = (float *)in_data;
for (m = ny-1, c = 0; m >= 0; m--) for (n = 0; n < nx; n++)
outF32[c++] = tmpF32[m + n*ny + nXYSize];
GDALRasterIO( hBand, GF_Write, 0, 0, nx, ny,outF32, nx, ny, (GDALDataType)typeCLASS, 0, 0 );
break;
case GDT_Float64:
tmpF64 = (double *)in_data;
for (m = ny-1, c = 0; m >= 0; m--) for (n = 0; n < nx; n++)
outF64[c++] = tmpF64[m + n*ny + nXYSize];
GDALRasterIO( hBand, GF_Write, 0, 0, nx, ny,outF64, nx, ny, (GDALDataType)typeCLASS, 0, 0 );
break;
}
}
/* ---------- Set up the Target coordinate system ------------------- */
/* If it was not provided assume it is Geog WGS84 */
CPLErrorReset();
if (pszDstSRS == NULL && pszDstWKT == NULL)
oDstSRS.SetWellKnownGeogCS( "WGS84" );
else if (pszDstWKT != NULL)
oDstSRS.importFromWkt( &pszDstWKT );
else {
if( oDstSRS.SetFromUserInput( pszDstSRS ) != OGRERR_NONE )
mexErrMsgTxt("GDAL_WARP_MEX: Translating target SRS failed.");
}
if (pszDstWKT == NULL)
oDstSRS.exportToWkt( &pszDstWKT );
/* ------------------------------------------------------------------ */
if ( nGCPCount != 0 ) {
if (GDALSetGCPs(hSrcDS, nGCPCount, pasGCPs, "") != CE_None)
mexPrintf("GDALWARP WARNING: writing GCPs failed.\n");
}
/* Create a transformer that maps from source pixel/line coordinates
to destination georeferenced coordinates (not destination pixel line)
We do that by omitting the destination dataset handle (setting it to NULL). */
void *hTransformArg;
hTransformArg = GDALCreateGenImgProjTransformer(hSrcDS, pszSrcWKT, NULL, pszDstWKT,
nGCPCount == 0 ? FALSE : TRUE, 0, nOrder);
if( hTransformArg == NULL )
mexErrMsgTxt("GDALTRANSFORM: Generating transformer failed.");
GDALTransformerInfo *psInfo = (GDALTransformerInfo*)hTransformArg;
/* -------------------------------------------------------------------------- */
/* Get approximate output georeferenced bounds and resolution for file
/* -------------------------------------------------------------------------- */
if (GDALSuggestedWarpOutput2(hSrcDS, GDALGenImgProjTransform, hTransformArg,
adfDstGeoTransform, &nPixels, &nLines, adfExtent,
0) != CE_None ) {
GDALClose(hSrcDS);
mexErrMsgTxt("GDALWARP: GDALSuggestedWarpOutput2 failed.");
}
if (CPLGetConfigOption( "CHECK_WITH_INVERT_PROJ", NULL ) == NULL) {
double MinX = adfExtent[0];
double MaxX = adfExtent[2];
double MaxY = adfExtent[3];
double MinY = adfExtent[1];
int bSuccess = TRUE;
/* Check that the the edges of the target image are in the validity area */
/* of the target projection */
#define N_STEPS 20
for (i = 0; i <= N_STEPS && bSuccess; i++) {
for (j = 0; j <= N_STEPS && bSuccess; j++) {
double dfRatioI = i * 1.0 / N_STEPS;
double dfRatioJ = j * 1.0 / N_STEPS;
double expected_x = (1 - dfRatioI) * MinX + dfRatioI * MaxX;
double expected_y = (1 - dfRatioJ) * MinY + dfRatioJ * MaxY;
double x = expected_x;
double y = expected_y;
double z = 0;
/* Target SRS coordinates to source image pixel coordinates */
if (!psInfo->pfnTransform(hTransformArg, TRUE, 1, &x, &y, &z, &bSuccess) || !bSuccess)
bSuccess = FALSE;
/* Source image pixel coordinates to target SRS coordinates */
if (!psInfo->pfnTransform(hTransformArg, FALSE, 1, &x, &y, &z, &bSuccess) || !bSuccess)
bSuccess = FALSE;
if (fabs(x - expected_x) > (MaxX - MinX) / nPixels ||
fabs(y - expected_y) > (MaxY - MinY) / nLines)
bSuccess = FALSE;
}
}
/* If not, retry with CHECK_WITH_INVERT_PROJ=TRUE that forces ogrct.cpp */
/* to check the consistency of each requested projection result with the */
/* invert projection */
if (!bSuccess) {
CPLSetConfigOption( "CHECK_WITH_INVERT_PROJ", "TRUE" );
CPLDebug("WARP", "Recompute out extent with CHECK_WITH_INVERT_PROJ=TRUE");
if (GDALSuggestedWarpOutput2(hSrcDS, GDALGenImgProjTransform, hTransformArg,
adfDstGeoTransform, &nPixels, &nLines, adfExtent,
0) != CE_None ) {
GDALClose(hSrcDS);
mexErrMsgTxt("GDALWARO: GDALSuggestedWarpOutput2 failed.");
}
}
}
/* -------------------------------------------------------------------- */
/* Expand the working bounds to include this region, ensure the */
/* working resolution is no more than this resolution. */
/* -------------------------------------------------------------------- */
if( dfMaxX == 0.0 && dfMinX == 0.0 ) {
dfMinX = adfExtent[0];
dfMaxX = adfExtent[2];
dfMaxY = adfExtent[3];
dfMinY = adfExtent[1];
dfResX = adfDstGeoTransform[1];
dfResY = ABS(adfDstGeoTransform[5]);
}
else {
dfMinX = MIN(dfMinX,adfExtent[0]);
dfMaxX = MAX(dfMaxX,adfExtent[2]);
dfMaxY = MAX(dfMaxY,adfExtent[3]);
dfMinY = MIN(dfMinY,adfExtent[1]);
dfResX = MIN(dfResX,adfDstGeoTransform[1]);
dfResY = MIN(dfResY,ABS(adfDstGeoTransform[5]));
}
GDALDestroyGenImgProjTransformer( hTransformArg );
/* -------------------------------------------------------------------- */
/* Turn the suggested region into a geotransform and suggested */
/* number of pixels and lines. */
/* -------------------------------------------------------------------- */
adfDstGeoTransform[0] = dfMinX;
adfDstGeoTransform[1] = dfResX;
adfDstGeoTransform[2] = 0.0;
adfDstGeoTransform[3] = dfMaxY;
adfDstGeoTransform[4] = 0.0;
adfDstGeoTransform[5] = -1 * dfResY;
nPixels = (int) ((dfMaxX - dfMinX) / dfResX + 0.5);
nLines = (int) ((dfMaxY - dfMinY) / dfResY + 0.5);
/* -------------------------------------------------------------------- */
/* Did the user override some parameters? */
/* -------------------------------------------------------------------- */
if( dfXRes != 0.0 && dfYRes != 0.0 ) {
dfMinX = adfDstGeoTransform[0];
dfMaxX = adfDstGeoTransform[0] + adfDstGeoTransform[1] * nPixels;
dfMaxY = adfDstGeoTransform[3];
dfMinY = adfDstGeoTransform[3] + adfDstGeoTransform[5] * nLines;
nPixels = (int) ((dfMaxX - dfMinX + (dfXRes/2.0)) / dfXRes);
nLines = (int) ((dfMaxY - dfMinY + (dfYRes/2.0)) / dfYRes);
adfDstGeoTransform[0] = dfMinX;
adfDstGeoTransform[3] = dfMaxY;
adfDstGeoTransform[1] = dfXRes;
adfDstGeoTransform[5] = -dfYRes;
}
else if( nForceWidth != 0 && nForceHeight != 0 ) {
dfXRes = (dfMaxX - dfMinX) / nForceWidth;
dfYRes = (dfMaxY - dfMinY) / nForceHeight;
adfDstGeoTransform[0] = dfMinX;
adfDstGeoTransform[3] = dfMaxY;
adfDstGeoTransform[1] = dfXRes;
adfDstGeoTransform[5] = -dfYRes;
nPixels = nForceWidth;
nLines = nForceHeight;
}
else if( nForceWidth != 0) {
dfXRes = (dfMaxX - dfMinX) / nForceWidth;
dfYRes = dfXRes;
adfDstGeoTransform[0] = dfMinX;
adfDstGeoTransform[3] = dfMaxY;
adfDstGeoTransform[1] = dfXRes;
adfDstGeoTransform[5] = -dfYRes;
nPixels = nForceWidth;
nLines = (int) ((dfMaxY - dfMinY + (dfYRes/2.0)) / dfYRes);
}
else if( nForceHeight != 0) {
dfYRes = (dfMaxY - dfMinY) / nForceHeight;
dfXRes = dfYRes;
adfDstGeoTransform[0] = dfMinX;
adfDstGeoTransform[3] = dfMaxY;
adfDstGeoTransform[1] = dfXRes;
adfDstGeoTransform[5] = -dfYRes;
nPixels = (int) ((dfMaxX - dfMinX + (dfXRes/2.0)) / dfXRes);
nLines = nForceHeight;
}
/* --------------------- Create the output --------------------------- */
hDstDS = GDALCreate( hDriver, "mem", nPixels, nLines,
GDALGetRasterCount(hSrcDS), (GDALDataType)typeCLASS, NULL );
CPLAssert( hDstDS != NULL );
/* -------------- Write out the projection definition ---------------- */
GDALSetProjection( hDstDS, pszDstWKT );
GDALSetGeoTransform( hDstDS, adfDstGeoTransform );
/* --------------------- Setup warp options -------------------------- */
GDALWarpOptions *psWO = GDALCreateWarpOptions();
psWO->hSrcDS = hSrcDS;
psWO->hDstDS = hDstDS;
psWO->nBandCount = nBands;
psWO->panSrcBands = (int *) CPLMalloc(psWO->nBandCount * sizeof(int) );
psWO->panDstBands = (int *) CPLMalloc(psWO->nBandCount * sizeof(int) );
for( i = 0; i < nBands; i++ ) {
psWO->panSrcBands[i] = i+1;
psWO->panDstBands[i] = i+1;
}
if( dfWarpMemoryLimit != 0.0 )
psWO->dfWarpMemoryLimit = dfWarpMemoryLimit;
/* --------------------- Setup the Resampling Algo ------------------- */
psWO->eResampleAlg = interpMethod;
/* --------------------- Setup NODATA options ------------------------ */
papszWarpOptions = CSLSetNameValue(papszWarpOptions, "INIT_DEST", "NO_DATA" );
if ( pdfDstNodata == NULL && (typeCLASS == GDT_Float32 || typeCLASS == GDT_Float64) ) {
pdfDstNodata = (double *) mxCalloc((size_t)1, sizeof(double));
*pdfDstNodata = mxGetNaN();
}
else if (pdfDstNodata != NULL) {
#define CLAMP(val,type,minval,maxval) \
do { if (val < minval) { val = minval; } \
else if (val > maxval) { val = maxval; } \
else if (val != (type)val) { val = (type)(val + 0.5); } } \
while(0)
switch( typeCLASS ) {
case GDT_Byte:
CLAMP(pdfDstNodata[0], GByte, 0.0, 255.0);
break;
case GDT_UInt16:
CLAMP(pdfDstNodata[0], GInt16, -32768.0, 32767.0);
break;
case GDT_Int16:
CLAMP(pdfDstNodata[0], GUInt16, 0.0, 65535.0);
break;
case GDT_UInt32:
CLAMP(pdfDstNodata[0], GInt32, -2147483648.0, 2147483647.0);
break;
case GDT_Int32:
CLAMP(pdfDstNodata[0], GUInt32, 0.0, 4294967295.0);
break;
default:
break;
}
}
psWO->papszWarpOptions = CSLDuplicate(papszWarpOptions);
if (pdfDstNodata != NULL) {
psWO->padfDstNoDataReal = (double *) CPLMalloc(psWO->nBandCount*sizeof(double));
psWO->padfDstNoDataImag = (double *) CPLMalloc(psWO->nBandCount*sizeof(double));
for (i = 0; i < nBands; i++) {
psWO->padfDstNoDataReal[i] = pdfDstNodata[0];
psWO->padfDstNoDataImag[i] = 0.0;
GDALSetRasterNoDataValue( GDALGetRasterBand(hDstDS, i+1), pdfDstNodata[0]);
}
}
/* ------------ Establish reprojection transformer ------------------- */
psWO->pTransformerArg = GDALCreateGenImgProjTransformer( hSrcDS, GDALGetProjectionRef(hSrcDS),
hDstDS, GDALGetProjectionRef(hDstDS),
nGCPCount == 0 ? FALSE : TRUE, 0.0, nOrder );
psWO->pfnTransformer = GDALGenImgProjTransform;
/* ----------- Initialize and execute the warp operation ------------- */
GDALWarpOperation oOperation;
oOperation.Initialize( psWO );
eErr = oOperation.ChunkAndWarpImage( 0, 0, GDALGetRasterXSize( hDstDS ),
GDALGetRasterYSize( hDstDS ) );
CPLAssert( eErr == CE_None );
GDALDestroyGenImgProjTransformer( psWO->pTransformerArg );
GDALDestroyWarpOptions( psWO );
GDALClose( hSrcDS );
/* ------------ Free memory used to fill the hSrcDS dataset ---------- */
switch( typeCLASS ) {
case GDT_Byte: mxFree((void *)outByte); break;
case GDT_UInt16: mxFree((void *)outUI16); break;
case GDT_Int16: mxFree((void *)outI16); break;
case GDT_UInt32: mxFree((void *)outUI32); break;
case GDT_Int32: mxFree((void *)outI32); break;
case GDT_Float32: mxFree((void *)outF32); break;
case GDT_Float64: mxFree((void *)outF64); break;
}
int out_dims[3];
out_dims[0] = nLines;
out_dims[1] = nPixels;
out_dims[2] = nBands;
plhs[0] = mxCreateNumericArray (n_dims,out_dims,mxGetClassID(prhs[0]), mxREAL);
tmp = (char *)mxCalloc(nPixels * nLines, nBytes);
/* ------ Allocate memory to be used in filling the hDstDS dataset ---- */
switch( typeCLASS ) {
case GDT_Byte:
outByte = (unsigned char *)mxGetData(plhs[0]); break;
case GDT_UInt16:
outUI16 = (unsigned short int *)mxGetData(plhs[0]); break;
case GDT_Int16:
outI16 = (short int *)mxGetData(plhs[0]); break;
case GDT_UInt32:
outUI32 = (unsigned int *)mxGetData(plhs[0]); break;
case GDT_Int32:
outI32 = (int *)mxGetData(plhs[0]); break;
case GDT_Float32:
outF32 = (float *)mxGetData(plhs[0]); break;
case GDT_Float64:
outF64 = (double *)mxGetData(plhs[0]); break;
}
/* ----------- Copy the output hSrcDS dataset data into plhs ---------- */
for (i = 1; i <= nBands; i++) {
hBand = GDALGetRasterBand( hDstDS, i );
GDALRasterIO( hBand, GF_Read, 0, 0, nPixels, nLines, tmp, nPixels, nLines,
(GDALDataType)typeCLASS, 0, 0 );
nXYSize = (i-1) * nPixels * nLines;
switch( typeCLASS ) {
case GDT_Byte:
for (m = nLines-1, c = 0; m >= 0; m--) for (n = 0; n < nPixels; n++)
outByte[m + n*nLines + nXYSize] = tmp[c++];
break;
case GDT_UInt16:
tmpUI16 = (GUInt16 *) tmp;
for (m = nLines-1, c = 0; m >= 0; m--) for (n = 0; n < nPixels; n++)
outUI16[m + n*nLines + nXYSize] = tmpUI16[c++];
break;
case GDT_Int16:
tmpI16 = (GInt16 *) tmp;
for (m = nLines-1, c = 0; m >= 0; m--) for (n = 0; n < nPixels; n++)
outI16[m + n*nLines + nXYSize] = tmpI16[c++];
break;
case GDT_UInt32:
tmpUI32 = (GUInt32 *) tmp;
for (m = nLines-1, c = 0; m >= 0; m--) for (n = 0; n < nPixels; n++)
outUI32[m + n*nLines + nXYSize] = tmpUI32[c++];
break;
case GDT_Int32:
tmpI32 = (GInt32 *) tmp;
for (m = nLines-1, c = 0; m >= 0; m--) for (n = 0; n < nPixels; n++)
outI32[m + n*nLines + nXYSize] = tmpI32[c++];
break;
case GDT_Float32:
tmpF32 = (float *) tmp;
for (m = nLines-1, c = 0; m >= 0; m--) for (n = 0; n < nPixels; n++)
outF32[m + n*nLines + nXYSize] = tmpF32[c++];
break;
case GDT_Float64:
tmpF64 = (double *) tmp;
for (m = nLines-1, c = 0; m >= 0; m--) for (n = 0; n < nPixels; n++)
outF64[m + n*nLines + nXYSize] = tmpF64[c++];
break;
}
}
mxFree(tmp);
if (nGCPCount) {
GDALDeinitGCPs( nGCPCount, pasGCPs ); /* makes this mex crash in the next call - Is it still true??? */
mxFree((void *) pasGCPs );
}
if (nlhs == 2)
plhs[1] = populate_metadata_struct (hDstDS, 1);
runed_once = TRUE; /* Signals that next call won't need to call GDALAllRegister() again */
/*GDALDestroyDriverManager();
OGRFree(pszDstWKT);*/
GDALClose( hDstDS );
CSLDestroy( papszWarpOptions );
if (pszDstWKT && strlen(pszDstWKT) > 1 ) OGRFree(pszDstWKT);
if (pszSrcWKT && strlen(pszSrcWKT) > 1 ) OGRFree(pszSrcWKT);
}
/**
* Sets the surface grids based on a ncep HRRR (surface only!) forecast.
* @param input The WindNinjaInputs for misc. info.
* @param airGrid The air temperature grid to be filled.
* @param cloudGrid The cloud cover grid to be filled.
* @param uGrid The u velocity grid to be filled.
* @param vGrid The v velocity grid to be filled.
* @param wGrid The w velocity grid to be filled (filled with zeros here?).
*/
void ncepHrrrSurfInitialization::setSurfaceGrids( WindNinjaInputs &input,
AsciiGrid<double> &airGrid,
AsciiGrid<double> &cloudGrid,
AsciiGrid<double> &uGrid,
AsciiGrid<double> &vGrid,
AsciiGrid<double> &wGrid )
{
int bandNum = -1;
GDALDataset *srcDS;
srcDS = (GDALDataset*)GDALOpenShared( input.forecastFilename.c_str(), GA_ReadOnly );
if( srcDS == NULL ) {
CPLDebug( "ncepHRRRSurfaceInitialization::identify()",
"Bad forecast file" );
}
GDALRasterBand *poBand = srcDS->GetRasterBand( 49 );
const char *gc;
gc = poBand->GetMetadataItem( "GRIB_COMMENT" );
std::string bandName( gc );
//get time list
std::vector<boost::local_time::local_date_time> timeList( getTimeList( input.ninjaTimeZone ) );
//Search time list for our time to identify our band number for cloud/speed/dir
//Right now, just one time step per file
std::vector<int> bandList;
for(unsigned int i = 0; i < timeList.size(); i++)
{
if(input.ninjaTime == timeList[i])
{
//check which HRRR format we have
if( bandName.find( "u-component of wind [m/s]" ) == bandName.npos ){ //if band 49 isn't u10, it's either 2010 or 2012 format
GDALRasterBand *poBand = srcDS->GetRasterBand( 50 );
const char *gc;
gc = poBand->GetMetadataItem( "GRIB_COMMENT" );
std::string bandName( gc );
if( bandName.find( "u-component of wind [m/s]" ) == bandName.npos ){ //if band 50 isn't u10, it's the 2010 format
bandList.push_back( 29 ); // 2t
bandList.push_back( 34 ); // 10v
bandList.push_back( 33 ); // 10u
bandList.push_back( 52 ); // geopotential height at cloud top
}
else{
bandList.push_back( 45 ); // 2t
bandList.push_back( 51 ); // 10v
bandList.push_back( 50 ); // 10u
bandList.push_back( 78 ); // geopotential height at cloud top
}
}
else{ //otherwise, should be 2011 format, but check for u10 band to be sure
poBand = srcDS->GetRasterBand( 44 );
gc = poBand->GetMetadataItem( "GRIB_COMMENT" );
bandName = gc;
if( bandName.find( "u-component of wind [m/s]" ) == bandName.npos ){
CPLDebug( "ncepHRRRSurfaceInitialization::identify()",
"Can't find the u-10 band in the forecast file." );
}
bandList.push_back( 44 ); // 2t
bandList.push_back( 50 ); // 10v
bandList.push_back( 49 ); // 10u
bandList.push_back( 73 ); // geopotential height at cloud top
}
break;
}
}
if(bandList.size() < 4)
throw std::runtime_error("Could not match ninjaTime with a band number in the forecast file.");
std::string dstWkt;
dstWkt = input.dem.prjString;
GDALDataset *wrpDS;
std::string temp;
std::string srcWkt;
GDALWarpOptions* psWarpOptions;
srcWkt = srcDS->GetProjectionRef();
poBand = srcDS->GetRasterBand( 9 );
int pbSuccess;
double dfNoData = poBand->GetNoDataValue( &pbSuccess );
psWarpOptions = GDALCreateWarpOptions();
int nBandCount = bandList.size();
psWarpOptions->nBandCount = nBandCount;
psWarpOptions->panSrcBands =
(int*) CPLMalloc( sizeof( int ) * nBandCount );
psWarpOptions->panDstBands =
(int*) CPLMalloc( sizeof( int ) * nBandCount );
psWarpOptions->padfDstNoDataReal =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
psWarpOptions->padfDstNoDataImag =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
psWarpOptions->padfDstNoDataReal =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
psWarpOptions->padfDstNoDataImag =
(double*) CPLMalloc( sizeof( double ) * nBandCount );
if( pbSuccess == false )
dfNoData = -9999.0;
psWarpOptions->panSrcBands =
(int *) CPLMalloc(sizeof(int) * psWarpOptions->nBandCount );
psWarpOptions->panSrcBands[0] = bandList[0];
psWarpOptions->panSrcBands[1] = bandList[1];
psWarpOptions->panSrcBands[2] = bandList[2];
psWarpOptions->panSrcBands[3] = bandList[3];
psWarpOptions->panDstBands =
(int *) CPLMalloc(sizeof(int) * psWarpOptions->nBandCount );
psWarpOptions->panDstBands[0] = 1;
psWarpOptions->panDstBands[1] = 2;
psWarpOptions->panDstBands[2] = 3;
psWarpOptions->panDstBands[3] = 4;
wrpDS = (GDALDataset*) GDALAutoCreateWarpedVRT( srcDS, srcWkt.c_str(),
dstWkt.c_str(),
GRA_NearestNeighbour,
1.0, psWarpOptions );
std::vector<std::string> varList = getVariableList();
for( unsigned int i = 0; i < varList.size(); i++ ) {
if( varList[i] == "2t" ) {
GDAL2AsciiGrid( wrpDS, i+1, airGrid );
if( CPLIsNan( dfNoData ) ) {
airGrid.set_noDataValue( -9999.0 );
airGrid.replaceNan( -9999.0 );
}
}
else if( varList[i] == "10v" ) {
GDAL2AsciiGrid( wrpDS, i+1, vGrid );
if( CPLIsNan( dfNoData ) ) {
vGrid.set_noDataValue( -9999.0 );
vGrid.replaceNan( -9999.0 );
}
}
else if( varList[i] == "10u" ) {
GDAL2AsciiGrid( wrpDS, i+1, uGrid );
if( CPLIsNan( dfNoData ) ) {
uGrid.set_noDataValue( -9999.0 );
uGrid.replaceNan( -9999.0 );
}
}
else if( varList[i] == "gh" ) {
GDAL2AsciiGrid( wrpDS, i+1, cloudGrid );
if( CPLIsNan( dfNoData ) ) {
cloudGrid.set_noDataValue( -9999.0 );
cloudGrid.replaceNan( -9999.0 );
}
}
}
//if there are any clouds set cloud fraction to 1, otherwise set to 0.
for(int i = 0; i < cloudGrid.get_nRows(); i++){
for(int j = 0; j < cloudGrid.get_nCols(); j++){
if(cloudGrid(i,j) < 0.0){
cloudGrid(i,j) = 0.0;
}
else{
cloudGrid(i,j) = 1.0;
}
}
}
wGrid.set_headerData( uGrid );
wGrid = 0.0;
airGrid += 273.15;
GDALDestroyWarpOptions( psWarpOptions );
GDALClose((GDALDatasetH) srcDS );
GDALClose((GDALDatasetH) wrpDS );
}
