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gdal_grid.cpp
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/* ****************************************************************************
* $Id$
*
* Project: GDAL Utilities
* Purpose: GDAL scattered data gridding (interpolation) tool
* Author: Andrey Kiselev, [email protected]
*
* ****************************************************************************
* Copyright (c) 2007, Andrey Kiselev <[email protected]>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include <cstdlib>
#include <vector>
#include <algorithm>
#include "cpl_string.h"
#include "gdal.h"
#include "gdal_alg.h"
#include "ogr_spatialref.h"
#include "ogr_api.h"
#include "ogrsf_frmts.h"
#include "gdalgrid.h"
#include "commonutils.h"
CPL_CVSID("$Id$");
/************************************************************************/
/* Usage() */
/************************************************************************/
static void Usage(const char* pszErrorMsg = NULL)
{
printf(
"Usage: gdal_grid [--help-general] [--formats]\n"
" [-ot {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/\n"
" CInt16/CInt32/CFloat32/CFloat64}]\n"
" [-of format] [-co \"NAME=VALUE\"]\n"
" [-zfield field_name] [-z_increase increase_value] [-z_multiply multiply_value]\n"
" [-a_srs srs_def] [-spat xmin ymin xmax ymax]\n"
" [-clipsrc <xmin ymin xmax ymax>|WKT|datasource|spat_extent]\n"
" [-clipsrcsql sql_statement] [-clipsrclayer layer]\n"
" [-clipsrcwhere expression]\n"
" [-l layername]* [-where expression] [-sql select_statement]\n"
" [-txe xmin xmax] [-tye ymin ymax] [-outsize xsize ysize]\n"
" [-a algorithm[:parameter1=value1]*]"
" [-q]\n"
" <src_datasource> <dst_filename>\n"
"\n"
"Available algorithms and parameters with their's defaults:\n"
" Inverse distance to a power (default)\n"
" invdist:power=2.0:smoothing=0.0:radius1=0.0:radius2=0.0:angle=0.0:max_points=0:min_points=0:nodata=0.0\n"
" Moving average\n"
" average:radius1=0.0:radius2=0.0:angle=0.0:min_points=0:nodata=0.0\n"
" Nearest neighbor\n"
" nearest:radius1=0.0:radius2=0.0:angle=0.0:nodata=0.0\n"
" Various data metrics\n"
" <metric name>:radius1=0.0:radius2=0.0:angle=0.0:min_points=0:nodata=0.0\n"
" possible metrics are:\n"
" minimum\n"
" maximum\n"
" range\n"
" count\n"
" average_distance\n"
" average_distance_pts\n"
"\n");
if( pszErrorMsg != NULL )
fprintf(stderr, "\nFAILURE: %s\n", pszErrorMsg);
GDALDestroyDriverManager();
exit( 1 );
}
/************************************************************************/
/* GetAlgorithmName() */
/* */
/* Translates algortihm code into mnemonic name. */
/************************************************************************/
static void PrintAlgorithmAndOptions( GDALGridAlgorithm eAlgorithm,
void *pOptions )
{
switch ( eAlgorithm )
{
case GGA_InverseDistanceToAPower:
printf( "Algorithm name: \"%s\".\n", szAlgNameInvDist );
CPLprintf( "Options are "
"\"power=%f:smoothing=%f:radius1=%f:radius2=%f:angle=%f"
":max_points=%lu:min_points=%lu:nodata=%f\"\n",
((GDALGridInverseDistanceToAPowerOptions *)pOptions)->dfPower,
((GDALGridInverseDistanceToAPowerOptions *)pOptions)->dfSmoothing,
((GDALGridInverseDistanceToAPowerOptions *)pOptions)->dfRadius1,
((GDALGridInverseDistanceToAPowerOptions *)pOptions)->dfRadius2,
((GDALGridInverseDistanceToAPowerOptions *)pOptions)->dfAngle,
(unsigned long)((GDALGridInverseDistanceToAPowerOptions *)pOptions)->nMaxPoints,
(unsigned long)((GDALGridInverseDistanceToAPowerOptions *)pOptions)->nMinPoints,
((GDALGridInverseDistanceToAPowerOptions *)pOptions)->dfNoDataValue);
break;
case GGA_MovingAverage:
printf( "Algorithm name: \"%s\".\n", szAlgNameAverage );
CPLprintf( "Options are "
"\"radius1=%f:radius2=%f:angle=%f:min_points=%lu"
":nodata=%f\"\n",
((GDALGridMovingAverageOptions *)pOptions)->dfRadius1,
((GDALGridMovingAverageOptions *)pOptions)->dfRadius2,
((GDALGridMovingAverageOptions *)pOptions)->dfAngle,
(unsigned long)((GDALGridMovingAverageOptions *)pOptions)->nMinPoints,
((GDALGridMovingAverageOptions *)pOptions)->dfNoDataValue);
break;
case GGA_NearestNeighbor:
printf( "Algorithm name: \"%s\".\n", szAlgNameNearest );
CPLprintf( "Options are "
"\"radius1=%f:radius2=%f:angle=%f:nodata=%f\"\n",
((GDALGridNearestNeighborOptions *)pOptions)->dfRadius1,
((GDALGridNearestNeighborOptions *)pOptions)->dfRadius2,
((GDALGridNearestNeighborOptions *)pOptions)->dfAngle,
((GDALGridNearestNeighborOptions *)pOptions)->dfNoDataValue);
break;
case GGA_MetricMinimum:
printf( "Algorithm name: \"%s\".\n", szAlgNameMinimum );
CPLprintf( "Options are "
"\"radius1=%f:radius2=%f:angle=%f:min_points=%lu"
":nodata=%f\"\n",
((GDALGridDataMetricsOptions *)pOptions)->dfRadius1,
((GDALGridDataMetricsOptions *)pOptions)->dfRadius2,
((GDALGridDataMetricsOptions *)pOptions)->dfAngle,
(unsigned long)((GDALGridDataMetricsOptions *)pOptions)->nMinPoints,
((GDALGridDataMetricsOptions *)pOptions)->dfNoDataValue);
break;
case GGA_MetricMaximum:
printf( "Algorithm name: \"%s\".\n", szAlgNameMaximum );
CPLprintf( "Options are "
"\"radius1=%f:radius2=%f:angle=%f:min_points=%lu"
":nodata=%f\"\n",
((GDALGridDataMetricsOptions *)pOptions)->dfRadius1,
((GDALGridDataMetricsOptions *)pOptions)->dfRadius2,
((GDALGridDataMetricsOptions *)pOptions)->dfAngle,
(unsigned long)((GDALGridDataMetricsOptions *)pOptions)->nMinPoints,
((GDALGridDataMetricsOptions *)pOptions)->dfNoDataValue);
break;
case GGA_MetricRange:
printf( "Algorithm name: \"%s\".\n", szAlgNameRange );
CPLprintf( "Options are "
"\"radius1=%f:radius2=%f:angle=%f:min_points=%lu"
":nodata=%f\"\n",
((GDALGridDataMetricsOptions *)pOptions)->dfRadius1,
((GDALGridDataMetricsOptions *)pOptions)->dfRadius2,
((GDALGridDataMetricsOptions *)pOptions)->dfAngle,
(unsigned long)((GDALGridDataMetricsOptions *)pOptions)->nMinPoints,
((GDALGridDataMetricsOptions *)pOptions)->dfNoDataValue);
break;
case GGA_MetricCount:
printf( "Algorithm name: \"%s\".\n", szAlgNameCount );
CPLprintf( "Options are "
"\"radius1=%f:radius2=%f:angle=%f:min_points=%lu"
":nodata=%f\"\n",
((GDALGridDataMetricsOptions *)pOptions)->dfRadius1,
((GDALGridDataMetricsOptions *)pOptions)->dfRadius2,
((GDALGridDataMetricsOptions *)pOptions)->dfAngle,
(unsigned long)((GDALGridDataMetricsOptions *)pOptions)->nMinPoints,
((GDALGridDataMetricsOptions *)pOptions)->dfNoDataValue);
break;
case GGA_MetricAverageDistance:
printf( "Algorithm name: \"%s\".\n", szAlgNameAverageDistance );
CPLprintf( "Options are "
"\"radius1=%f:radius2=%f:angle=%f:min_points=%lu"
":nodata=%f\"\n",
((GDALGridDataMetricsOptions *)pOptions)->dfRadius1,
((GDALGridDataMetricsOptions *)pOptions)->dfRadius2,
((GDALGridDataMetricsOptions *)pOptions)->dfAngle,
(unsigned long)((GDALGridDataMetricsOptions *)pOptions)->nMinPoints,
((GDALGridDataMetricsOptions *)pOptions)->dfNoDataValue);
break;
case GGA_MetricAverageDistancePts:
printf( "Algorithm name: \"%s\".\n", szAlgNameAverageDistancePts );
CPLprintf( "Options are "
"\"radius1=%f:radius2=%f:angle=%f:min_points=%lu"
":nodata=%f\"\n",
((GDALGridDataMetricsOptions *)pOptions)->dfRadius1,
((GDALGridDataMetricsOptions *)pOptions)->dfRadius2,
((GDALGridDataMetricsOptions *)pOptions)->dfAngle,
(unsigned long)((GDALGridDataMetricsOptions *)pOptions)->nMinPoints,
((GDALGridDataMetricsOptions *)pOptions)->dfNoDataValue);
break;
default:
printf( "Algorithm is unknown.\n" );
break;
}
}
/************************************************************************/
/* ProcessGeometry() */
/* */
/* Extract point coordinates from the geometry reference and set the */
/* Z value as requested. Test whther we are in the clipped region */
/* before processing. */
/************************************************************************/
static void ProcessGeometry( OGRPoint *poGeom, OGRGeometry *poClipSrc,
int iBurnField, double dfBurnValue,
const double dfIncreaseBurnValue,
const double dfMultiplyBurnValue,
std::vector<double> &adfX,
std::vector<double> &adfY,
std::vector<double> &adfZ )
{
if ( poClipSrc && !poGeom->Within(poClipSrc) )
return;
adfX.push_back( poGeom->getX() );
adfY.push_back( poGeom->getY() );
if ( iBurnField < 0 )
adfZ.push_back( (poGeom->getZ() + dfIncreaseBurnValue) * dfMultiplyBurnValue );
else
adfZ.push_back( (dfBurnValue + dfIncreaseBurnValue) * dfMultiplyBurnValue );
}
/************************************************************************/
/* ProcessCommonGeometry() */
/* */
/* Process recursivelly geometry and extract points */
/************************************************************************/
static void ProcessCommonGeometry(OGRGeometry* poGeom, OGRGeometry *poClipSrc,
int iBurnField, double dfBurnValue,
const double dfIncreaseBurnValue,
const double dfMultiplyBurnValue,
std::vector<double> &adfX,
std::vector<double> &adfY,
std::vector<double> &adfZ)
{
if (NULL == poGeom)
return;
OGRwkbGeometryType eType = wkbFlatten(poGeom->getGeometryType());
switch (eType)
{
case wkbPoint:
return ProcessGeometry((OGRPoint *)poGeom, poClipSrc,
iBurnField, dfBurnValue, dfIncreaseBurnValue, dfMultiplyBurnValue, adfX, adfY, adfZ);
case wkbLinearRing:
case wkbLineString:
{
OGRLineString *poLS = (OGRLineString*)poGeom;
OGRPoint point;
for (int pointIndex = 0; pointIndex < poLS->getNumPoints(); pointIndex++)
{
poLS->getPoint(pointIndex, &point);
ProcessCommonGeometry((OGRGeometry*)&point, poClipSrc,
iBurnField, dfBurnValue, dfIncreaseBurnValue, dfMultiplyBurnValue, adfX, adfY, adfZ);
}
}
break;
case wkbPolygon:
{
int nRings(0);
OGRPolygon* poPoly = (OGRPolygon*)poGeom;
OGRLinearRing* poRing = poPoly->getExteriorRing();
ProcessCommonGeometry((OGRGeometry*)poRing, poClipSrc,
iBurnField, dfBurnValue, dfIncreaseBurnValue, dfMultiplyBurnValue, adfX, adfY, adfZ);
nRings = poPoly->getNumInteriorRings();
if (nRings > 0)
{
for (int ir = 0; ir < nRings; ++ir)
{
OGRLinearRing* poRing = poPoly->getInteriorRing(ir);
ProcessCommonGeometry((OGRGeometry*)poRing, poClipSrc,
iBurnField, dfBurnValue, dfIncreaseBurnValue, dfMultiplyBurnValue, adfX, adfY, adfZ);
}
}
}
break;
case wkbMultiPoint:
case wkbMultiPolygon:
case wkbMultiLineString:
case wkbGeometryCollection:
{
OGRGeometryCollection* pOGRGeometryCollection = (OGRGeometryCollection*)poGeom;
for (int i = 0; i < pOGRGeometryCollection->getNumGeometries(); ++i)
{
ProcessCommonGeometry(pOGRGeometryCollection->getGeometryRef(i), poClipSrc,
iBurnField, dfBurnValue, dfIncreaseBurnValue, dfMultiplyBurnValue, adfX, adfY, adfZ);
}
}
break;
case wkbUnknown:
case wkbNone:
default:
break;
}
}
/************************************************************************/
/* ProcessLayer() */
/* */
/* Process all the features in a layer selection, collecting */
/* geometries and burn values. */
/************************************************************************/
static CPLErr ProcessLayer( OGRLayerH hSrcLayer, GDALDatasetH hDstDS,
OGRGeometry *poClipSrc,
GUInt32 nXSize, GUInt32 nYSize, int nBand,
int& bIsXExtentSet, int& bIsYExtentSet,
double& dfXMin, double& dfXMax,
double& dfYMin, double& dfYMax,
const char *pszBurnAttribute,
const double dfIncreaseBurnValue,
const double dfMultiplyBurnValue,
GDALDataType eType,
GDALGridAlgorithm eAlgorithm, void *pOptions,
int bQuiet, GDALProgressFunc pfnProgress )
{
/* -------------------------------------------------------------------- */
/* Get field index, and check. */
/* -------------------------------------------------------------------- */
int iBurnField = -1;
if ( pszBurnAttribute )
{
iBurnField = OGR_FD_GetFieldIndex( OGR_L_GetLayerDefn( hSrcLayer ),
pszBurnAttribute );
if( iBurnField == -1 )
{
printf( "Failed to find field %s on layer %s, skipping.\n",
pszBurnAttribute,
OGR_FD_GetName( OGR_L_GetLayerDefn( hSrcLayer ) ) );
return CE_Failure;
}
}
/* -------------------------------------------------------------------- */
/* Collect the geometries from this layer, and build list of */
/* values to be interpolated. */
/* -------------------------------------------------------------------- */
OGRFeature *poFeat;
std::vector<double> adfX, adfY, adfZ;
OGR_L_ResetReading( hSrcLayer );
while( (poFeat = (OGRFeature *)OGR_L_GetNextFeature( hSrcLayer )) != NULL )
{
OGRGeometry *poGeom = poFeat->GetGeometryRef();
double dfBurnValue = 0.0;
if ( iBurnField >= 0 )
dfBurnValue = poFeat->GetFieldAsDouble( iBurnField );
ProcessCommonGeometry(poGeom, poClipSrc, iBurnField, dfBurnValue,
dfIncreaseBurnValue, dfMultiplyBurnValue, adfX, adfY, adfZ);
OGRFeature::DestroyFeature( poFeat );
}
if ( adfX.size() == 0 )
{
printf( "No point geometry found on layer %s, skipping.\n",
OGR_FD_GetName( OGR_L_GetLayerDefn( hSrcLayer ) ) );
return CE_None;
}
/* -------------------------------------------------------------------- */
/* Compute grid geometry. */
/* -------------------------------------------------------------------- */
if ( !bIsXExtentSet || !bIsYExtentSet )
{
OGREnvelope sEnvelope;
OGR_L_GetExtent( hSrcLayer, &sEnvelope, TRUE );
if ( !bIsXExtentSet )
{
dfXMin = sEnvelope.MinX;
dfXMax = sEnvelope.MaxX;
bIsXExtentSet = TRUE;
}
if ( !bIsYExtentSet )
{
dfYMin = sEnvelope.MinY;
dfYMax = sEnvelope.MaxY;
bIsYExtentSet = TRUE;
}
}
/* -------------------------------------------------------------------- */
/* Perform gridding. */
/* -------------------------------------------------------------------- */
const double dfDeltaX = ( dfXMax - dfXMin ) / nXSize;
const double dfDeltaY = ( dfYMax - dfYMin ) / nYSize;
if ( !bQuiet )
{
printf( "Grid data type is \"%s\"\n", GDALGetDataTypeName(eType) );
printf( "Grid size = (%lu %lu).\n",
(unsigned long)nXSize, (unsigned long)nYSize );
CPLprintf( "Corner coordinates = (%f %f)-(%f %f).\n",
dfXMin - dfDeltaX / 2, dfYMax + dfDeltaY / 2,
dfXMax + dfDeltaX / 2, dfYMin - dfDeltaY / 2 );
CPLprintf( "Grid cell size = (%f %f).\n", dfDeltaX, dfDeltaY );
printf( "Source point count = %lu.\n", (unsigned long)adfX.size() );
PrintAlgorithmAndOptions( eAlgorithm, pOptions );
printf("\n");
}
GDALRasterBandH hBand = GDALGetRasterBand( hDstDS, nBand );
if (adfX.size() == 0)
{
// FIXME: Shoulda' set to nodata value instead
GDALFillRaster( hBand, 0.0 , 0.0 );
return CE_None;
}
GUInt32 nXOffset, nYOffset;
int nBlockXSize, nBlockYSize;
int nDataTypeSize = GDALGetDataTypeSize(eType) / 8;
// Try to grow the work buffer up to 16 MB if it is smaller
GDALGetBlockSize( hBand, &nBlockXSize, &nBlockYSize );
const GUInt32 nDesiredBufferSize = 16*1024*1024;
if( (GUInt32)nBlockXSize < nXSize && (GUInt32)nBlockYSize < nYSize &&
(GUInt32)nBlockXSize < nDesiredBufferSize / (nBlockYSize * nDataTypeSize) )
{
int nNewBlockXSize = nDesiredBufferSize / (nBlockYSize * nDataTypeSize);
nBlockXSize = (nNewBlockXSize / nBlockXSize) * nBlockXSize;
if( (GUInt32)nBlockXSize > nXSize )
nBlockXSize = nXSize;
}
else if( (GUInt32)nBlockXSize == nXSize && (GUInt32)nBlockYSize < nYSize &&
(GUInt32)nBlockYSize < nDesiredBufferSize / (nXSize * nDataTypeSize) )
{
int nNewBlockYSize = nDesiredBufferSize / (nXSize * nDataTypeSize);
nBlockYSize = (nNewBlockYSize / nBlockYSize) * nBlockYSize;
if( (GUInt32)nBlockYSize > nYSize )
nBlockYSize = nYSize;
}
CPLDebug("GDAL_GRID", "Work buffer: %d * %d", nBlockXSize, nBlockYSize);
void *pData =
VSIMalloc3( nBlockXSize, nBlockYSize, nDataTypeSize );
if( pData == NULL )
{
CPLError(CE_Failure, CPLE_OutOfMemory, "Cannot allocate work buffer");
return CE_Failure;
}
GUInt32 nBlock = 0;
GUInt32 nBlockCount = ((nXSize + nBlockXSize - 1) / nBlockXSize)
* ((nYSize + nBlockYSize - 1) / nBlockYSize);
CPLErr eErr = CE_None;
for ( nYOffset = 0; nYOffset < nYSize && eErr == CE_None; nYOffset += nBlockYSize )
{
for ( nXOffset = 0; nXOffset < nXSize && eErr == CE_None; nXOffset += nBlockXSize )
{
void *pScaledProgress;
pScaledProgress =
GDALCreateScaledProgress( (double)nBlock / nBlockCount,
(double)(nBlock + 1) / nBlockCount,
pfnProgress, NULL );
nBlock ++;
int nXRequest = nBlockXSize;
if (nXOffset + nXRequest > nXSize)
nXRequest = nXSize - nXOffset;
int nYRequest = nBlockYSize;
if (nYOffset + nYRequest > nYSize)
nYRequest = nYSize - nYOffset;
eErr = GDALGridCreate( eAlgorithm, pOptions,
adfX.size(), &(adfX[0]), &(adfY[0]), &(adfZ[0]),
dfXMin + dfDeltaX * nXOffset,
dfXMin + dfDeltaX * (nXOffset + nXRequest),
dfYMin + dfDeltaY * nYOffset,
dfYMin + dfDeltaY * (nYOffset + nYRequest),
nXRequest, nYRequest, eType, pData,
GDALScaledProgress, pScaledProgress );
if( eErr == CE_None )
eErr = GDALRasterIO( hBand, GF_Write, nXOffset, nYOffset,
nXRequest, nYRequest, pData,
nXRequest, nYRequest, eType, 0, 0 );
GDALDestroyScaledProgress( pScaledProgress );
}
}
CPLFree( pData );
return eErr;
}
/************************************************************************/
/* LoadGeometry() */
/* */
/* Read geometries from the given dataset using specified filters and */
/* returns a collection of read geometries. */
/************************************************************************/
static OGRGeometryCollection* LoadGeometry( const char* pszDS,
const char* pszSQL,
const char* pszLyr,
const char* pszWhere )
{
GDALDataset *poDS;
OGRLayer *poLyr;
OGRFeature *poFeat;
OGRGeometryCollection *poGeom = NULL;
poDS = (GDALDataset*) GDALOpen( pszDS, GA_ReadOnly );
if ( poDS == NULL )
return NULL;
if ( pszSQL != NULL )
poLyr = poDS->ExecuteSQL( pszSQL, NULL, NULL );
else if ( pszLyr != NULL )
poLyr = poDS->GetLayerByName( pszLyr );
else
poLyr = poDS->GetLayer(0);
if ( poLyr == NULL )
{
fprintf( stderr,
"FAILURE: Failed to identify source layer from datasource.\n" );
GDALClose( (GDALDatasetH) poDS );
return NULL;
}
if ( pszWhere )
poLyr->SetAttributeFilter( pszWhere );
while ( (poFeat = poLyr->GetNextFeature()) != NULL )
{
OGRGeometry* poSrcGeom = poFeat->GetGeometryRef();
if ( poSrcGeom )
{
OGRwkbGeometryType eType =
wkbFlatten( poSrcGeom->getGeometryType() );
if ( poGeom == NULL )
poGeom = new OGRMultiPolygon();
if ( eType == wkbPolygon )
poGeom->addGeometry( poSrcGeom );
else if ( eType == wkbMultiPolygon )
{
int iGeom;
int nGeomCount =
((OGRMultiPolygon *)poSrcGeom)->getNumGeometries();
for ( iGeom = 0; iGeom < nGeomCount; iGeom++ )
{
poGeom->addGeometry(
((OGRMultiPolygon *)poSrcGeom)->getGeometryRef(iGeom) );
}
}
else
{
fprintf( stderr, "FAILURE: Geometry not of polygon type.\n" );
OGRGeometryFactory::destroyGeometry( poGeom );
OGRFeature::DestroyFeature( poFeat );
if ( pszSQL != NULL )
poDS->ReleaseResultSet( poLyr );
GDALClose( (GDALDatasetH) poDS );
return NULL;
}
}
OGRFeature::DestroyFeature( poFeat );
}
if( pszSQL != NULL )
poDS->ReleaseResultSet( poLyr );
GDALClose( (GDALDatasetH) poDS );
return poGeom;
}
/************************************************************************/
/* main() */
/************************************************************************/
#define CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(nExtraArg) \
do { if (i + nExtraArg >= argc) \
Usage(CPLSPrintf("%s option requires %d argument(s)", argv[i], nExtraArg)); } while(0)
int main( int argc, char ** argv )
{
GDALDriverH hDriver;
const char *pszSource=NULL, *pszDest=NULL, *pszFormat = "GTiff";
int bFormatExplicitelySet = FALSE;
char **papszLayers = NULL;
const char *pszBurnAttribute = NULL;
double dfIncreaseBurnValue = 0.0;
double dfMultiplyBurnValue = 1.0;
const char *pszWHERE = NULL, *pszSQL = NULL;
GDALDataType eOutputType = GDT_Float64;
char **papszCreateOptions = NULL;
GUInt32 nXSize = 0, nYSize = 0;
double dfXMin = 0.0, dfXMax = 0.0, dfYMin = 0.0, dfYMax = 0.0;
int bIsXExtentSet = FALSE, bIsYExtentSet = FALSE;
GDALGridAlgorithm eAlgorithm = GGA_InverseDistanceToAPower;
void *pOptions = NULL;
char *pszOutputSRS = NULL;
int bQuiet = FALSE;
GDALProgressFunc pfnProgress = GDALTermProgress;
int i;
OGRGeometry *poSpatialFilter = NULL;
int bClipSrc = FALSE;
OGRGeometry *poClipSrc = NULL;
const char *pszClipSrcDS = NULL;
const char *pszClipSrcSQL = NULL;
const char *pszClipSrcLayer = NULL;
const char *pszClipSrcWhere = NULL;
int bNoDataSet = FALSE;
double dfNoDataValue = 0;
/* Check strict compilation and runtime library version as we use C++ API */
if (! GDAL_CHECK_VERSION(argv[0]))
exit(1);
GDALAllRegister();
OGRRegisterAll();
argc = GDALGeneralCmdLineProcessor( argc, &argv, 0 );
if( argc < 1 )
exit( -argc );
/* -------------------------------------------------------------------- */
/* Parse arguments. */
/* -------------------------------------------------------------------- */
for( i = 1; i < argc; i++ )
{
if( EQUAL(argv[i], "--utility_version") )
{
printf("%s was compiled against GDAL %s and is running against GDAL %s\n",
argv[0], GDAL_RELEASE_NAME, GDALVersionInfo("RELEASE_NAME"));
return 0;
}
else if( EQUAL(argv[i],"--help") )
Usage();
else if( EQUAL(argv[i],"-of") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
pszFormat = argv[++i];
bFormatExplicitelySet = TRUE;
}
else if( EQUAL(argv[i],"-q") || EQUAL(argv[i],"-quiet") )
{
bQuiet = TRUE;
pfnProgress = GDALDummyProgress;
}
else if( EQUAL(argv[i],"-ot") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
int iType;
for( iType = 1; iType < GDT_TypeCount; iType++ )
{
if( GDALGetDataTypeName((GDALDataType)iType) != NULL
&& EQUAL(GDALGetDataTypeName((GDALDataType)iType),
argv[i+1]) )
{
eOutputType = (GDALDataType) iType;
}
}
if( eOutputType == GDT_Unknown )
{
Usage(CPLSPrintf("Unknown output pixel type: %s.",
argv[i + 1] ));
}
i++;
}
else if( EQUAL(argv[i],"-txe") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
dfXMin = CPLAtof(argv[++i]);
dfXMax = CPLAtof(argv[++i]);
bIsXExtentSet = TRUE;
}
else if( EQUAL(argv[i],"-tye") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
dfYMin = CPLAtof(argv[++i]);
dfYMax = CPLAtof(argv[++i]);
bIsYExtentSet = TRUE;
}
else if( EQUAL(argv[i],"-outsize") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(2);
nXSize = atoi(argv[++i]);
nYSize = atoi(argv[++i]);
}
else if( EQUAL(argv[i],"-co") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
papszCreateOptions = CSLAddString( papszCreateOptions, argv[++i] );
}
else if( EQUAL(argv[i],"-zfield") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
pszBurnAttribute = argv[++i];
}
else if( EQUAL(argv[i],"-z_increase") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
dfIncreaseBurnValue = CPLAtof(argv[++i]);
}
else if( EQUAL(argv[i],"-z_multiply") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
dfMultiplyBurnValue = CPLAtof(argv[++i]);
}
else if( EQUAL(argv[i],"-where") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
pszWHERE = argv[++i];
}
else if( EQUAL(argv[i],"-l") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
papszLayers = CSLAddString( papszLayers, argv[++i] );
}
else if( EQUAL(argv[i],"-sql") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
pszSQL = argv[++i];
}
else if( EQUAL(argv[i],"-spat") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(4);
OGRLinearRing oRing;
oRing.addPoint( CPLAtof(argv[i+1]), CPLAtof(argv[i+2]) );
oRing.addPoint( CPLAtof(argv[i+1]), CPLAtof(argv[i+4]) );
oRing.addPoint( CPLAtof(argv[i+3]), CPLAtof(argv[i+4]) );
oRing.addPoint( CPLAtof(argv[i+3]), CPLAtof(argv[i+2]) );
oRing.addPoint( CPLAtof(argv[i+1]), CPLAtof(argv[i+2]) );
poSpatialFilter = new OGRPolygon();
((OGRPolygon *) poSpatialFilter)->addRing( &oRing );
i += 4;
}
else if ( EQUAL(argv[i],"-clipsrc") )
{
if (i + 1 >= argc)
Usage(CPLSPrintf("%s option requires 1 or 4 arguments", argv[i]));
bClipSrc = TRUE;
errno = 0;
const double unused = strtod( argv[i + 1], NULL ); // XXX: is it a number or not?
if ( errno != 0
&& argv[i + 2] != NULL
&& argv[i + 3] != NULL
&& argv[i + 4] != NULL)
{
OGRLinearRing oRing;
oRing.addPoint( CPLAtof(argv[i + 1]), CPLAtof(argv[i + 2]) );
oRing.addPoint( CPLAtof(argv[i + 1]), CPLAtof(argv[i + 4]) );
oRing.addPoint( CPLAtof(argv[i + 3]), CPLAtof(argv[i + 4]) );
oRing.addPoint( CPLAtof(argv[i + 3]), CPLAtof(argv[i + 2]) );
oRing.addPoint( CPLAtof(argv[i + 1]), CPLAtof(argv[i + 2]) );
poClipSrc = new OGRPolygon();
((OGRPolygon *) poClipSrc)->addRing( &oRing );
i += 4;
(void)unused;
}
else if (EQUALN(argv[i + 1], "POLYGON", 7)
|| EQUALN(argv[i + 1], "MULTIPOLYGON", 12))
{
OGRGeometryFactory::createFromWkt(&argv[i + 1], NULL, &poClipSrc);
if ( poClipSrc == NULL )
{
Usage("Invalid geometry. "
"Must be a valid POLYGON or MULTIPOLYGON WKT.");
}
i++;
}
else if (EQUAL(argv[i + 1], "spat_extent") )
{
i++;
}
else
{
pszClipSrcDS = argv[i + 1];
i++;
}
}
else if ( EQUAL(argv[i], "-clipsrcsql") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
pszClipSrcSQL = argv[i + 1];
i++;
}
else if ( EQUAL(argv[i], "-clipsrclayer") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
pszClipSrcLayer = argv[i + 1];
i++;
}
else if ( EQUAL(argv[i], "-clipsrcwhere") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
pszClipSrcWhere = argv[i + 1];
i++;
}
else if( EQUAL(argv[i],"-a_srs") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
OGRSpatialReference oOutputSRS;
if( oOutputSRS.SetFromUserInput( argv[i+1] ) != OGRERR_NONE )
{
fprintf( stderr, "Failed to process SRS definition: %s\n",
argv[i+1] );
GDALDestroyDriverManager();
exit( 1 );
}
oOutputSRS.exportToWkt( &pszOutputSRS );
i++;
}
else if( EQUAL(argv[i],"-a") )
{
CHECK_HAS_ENOUGH_ADDITIONAL_ARGS(1);
const char* pszAlgorithm = argv[++i];
if ( ParseAlgorithmAndOptions( pszAlgorithm, &eAlgorithm, &pOptions )
!= CE_None )
{
fprintf( stderr,
"Failed to process algorithm name and parameters.\n" );
exit( 1 );
}
char **papszParms = CSLTokenizeString2( pszAlgorithm, ":", FALSE );
const char* pszNoDataValue = CSLFetchNameValue( papszParms, "nodata" );
if( pszNoDataValue != NULL )
{
bNoDataSet = TRUE;
dfNoDataValue = CPLAtofM(pszNoDataValue);
}
CSLDestroy(papszParms);
}
else if( argv[i][0] == '-' )
{
Usage(CPLSPrintf("Unknown option name '%s'", argv[i]));
}
else if( pszSource == NULL )
{
pszSource = argv[i];
}
else if( pszDest == NULL )
{
pszDest = argv[i];
}
else
{
Usage("Too many command options.");
}
}
if( pszSource == NULL )
{
Usage("Source datasource is not specified.");
}
if( pszDest == NULL )
{
Usage("Target dataset is not specified.");
}
if( pszSQL == NULL && papszLayers == NULL )
{
Usage("Neither -sql nor -l are specified.");
}
if ( bClipSrc && pszClipSrcDS != NULL )
{
poClipSrc = LoadGeometry( pszClipSrcDS, pszClipSrcSQL,
pszClipSrcLayer, pszClipSrcWhere );
if ( poClipSrc == NULL )
{
Usage("Cannot load source clip geometry.");
}
}
else if ( bClipSrc && poClipSrc == NULL && !poSpatialFilter )
{
Usage("-clipsrc must be used with -spat option or \n"
"a bounding box, WKT string or datasource must be "
"specified.");
}
if ( poSpatialFilter )
{
if ( poClipSrc )
{
OGRGeometry *poTemp = poSpatialFilter->Intersection( poClipSrc );
if ( poTemp )
{
OGRGeometryFactory::destroyGeometry( poSpatialFilter );
poSpatialFilter = poTemp;
}
OGRGeometryFactory::destroyGeometry( poClipSrc );
poClipSrc = NULL;
}
}
else
{
if ( poClipSrc )
{
poSpatialFilter = poClipSrc;
poClipSrc = NULL;
}
}
/* -------------------------------------------------------------------- */
/* Find the output driver. */
/* -------------------------------------------------------------------- */
hDriver = GDALGetDriverByName( pszFormat );
if( hDriver == NULL )
{
int iDr;
fprintf( stderr,
"FAILURE: Output driver `%s' not recognised.\n", pszFormat );
fprintf( stderr,
"The following format drivers are configured and support output:\n" );
for( iDr = 0; iDr < GDALGetDriverCount(); iDr++ )
{
GDALDriverH hDriver = GDALGetDriver(iDr);
if( GDALGetMetadataItem( hDriver, GDAL_DCAP_RASTER, NULL) != NULL &&
( GDALGetMetadataItem( hDriver, GDAL_DCAP_CREATE, NULL ) != NULL
|| GDALGetMetadataItem( hDriver, GDAL_DCAP_CREATECOPY, NULL ) != NULL) )
{
fprintf( stderr, " %s: %s\n",
GDALGetDriverShortName( hDriver ),
GDALGetDriverLongName( hDriver ) );
}
}
printf( "\n" );
Usage();
}
/* -------------------------------------------------------------------- */
/* Open input datasource. */
/* -------------------------------------------------------------------- */
OGRDataSourceH hSrcDS;
hSrcDS = OGROpen( pszSource, FALSE, NULL );
if( hSrcDS == NULL )