void OGRUnionLayer::AutoWarpLayerIfNecessary(int iLayer)
{
if( !pabCheckIfAutoWrap[iLayer] )
{
pabCheckIfAutoWrap[iLayer] = TRUE;
for(int i=0; i<GetLayerDefn()->GetGeomFieldCount();i++)
{
OGRSpatialReference* poSRS = GetLayerDefn()->GetGeomFieldDefn(i)->GetSpatialRef();
if( poSRS != NULL )
poSRS->Reference();
OGRFeatureDefn* poSrcFeatureDefn = papoSrcLayers[iLayer]->GetLayerDefn();
int iSrcGeomField = poSrcFeatureDefn->GetGeomFieldIndex(
GetLayerDefn()->GetGeomFieldDefn(i)->GetNameRef());
if( iSrcGeomField >= 0 )
{
OGRSpatialReference* poSRS2 =
poSrcFeatureDefn->GetGeomFieldDefn(iSrcGeomField)->GetSpatialRef();
if( (poSRS == NULL && poSRS2 != NULL) ||
(poSRS != NULL && poSRS2 == NULL) )
{
CPLError(CE_Warning, CPLE_AppDefined,
"SRS of geometry field '%s' layer %s not consistent with UnionLayer SRS",
GetLayerDefn()->GetGeomFieldDefn(i)->GetNameRef(),
papoSrcLayers[iLayer]->GetName());
}
else if (poSRS != NULL && poSRS2 != NULL &&
poSRS != poSRS2 && !poSRS->IsSame(poSRS2))
{
CPLDebug("VRT", "SRS of geometry field '%s' layer %s not consistent with UnionLayer SRS. "
"Trying auto warping",
GetLayerDefn()->GetGeomFieldDefn(i)->GetNameRef(),
papoSrcLayers[iLayer]->GetName());
OGRCoordinateTransformation* poCT =
OGRCreateCoordinateTransformation( poSRS2, poSRS );
OGRCoordinateTransformation* poReversedCT = (poCT != NULL) ?
OGRCreateCoordinateTransformation( poSRS, poSRS2 ) : NULL;
if( poReversedCT != NULL )
papoSrcLayers[iLayer] = new OGRWarpedLayer(
papoSrcLayers[iLayer], iSrcGeomField, TRUE, poCT, poReversedCT);
else
{
CPLError(CE_Warning, CPLE_AppDefined,
"AutoWarpLayerIfNecessary failed to create "
"poCT or poReversedCT.");
if ( poCT != NULL )
delete poCT;
}
}
}
if( poSRS != NULL )
poSRS->Release();
}
}
}
bool CSpatialReference::IsSame(const Geodatabase::CSpatialReference *pOther) const
{
if(m_Handle ==NULL || pOther->m_Handle==NULL)
{
return false;
}
OGRSpatialReference* psr = (OGRSpatialReference*)m_Handle;
return psr->IsSame((OGRSpatialReference*)pOther->m_Handle);
}
int OGRGeomFieldDefn::IsSame( OGRGeomFieldDefn * poOtherFieldDefn )
{
if( !(strcmp(GetNameRef(), poOtherFieldDefn->GetNameRef()) == 0 &&
GetType() == poOtherFieldDefn->GetType() &&
IsNullable() == poOtherFieldDefn->IsNullable()) )
return FALSE;
OGRSpatialReference* poMySRS = GetSpatialRef();
OGRSpatialReference* poOtherSRS = poOtherFieldDefn->GetSpatialRef();
return ((poMySRS == poOtherSRS) ||
(poMySRS != NULL && poOtherSRS != NULL &&
poMySRS->IsSame(poOtherSRS)));
}
bool hasSourceSRS(const std::string& sourceURN) {
if (m_transformation == nullptr) {
return false;
}
OGRSpatialReference refSys;
OGRErr err = refSys.SetFromUserInput(sourceURN.c_str());
if (err != OGRERR_NONE) {
return false;
}
return refSys.IsSame(m_transformation->GetSourceCS());
}
void OGRUnionLayer::AutoWarpLayerIfNecessary(int iLayer)
{
if( !pabCheckIfAutoWrap[iLayer] )
{
pabCheckIfAutoWrap[iLayer] = TRUE;
OGRSpatialReference* poSRS = GetSpatialRef();
if( poSRS != NULL )
poSRS->Reference();
OGRSpatialReference* poSRS2 = papoSrcLayers[iLayer]->GetSpatialRef();
if( (poSRS == NULL && poSRS2 != NULL) ||
(poSRS != NULL && poSRS2 == NULL) )
{
CPLError(CE_Warning, CPLE_AppDefined,
"SRS of layer %s not consistant with layer SRS",
papoSrcLayers[iLayer]->GetName());
}
else if (poSRS != NULL && poSRS2 != NULL &&
poSRS != poSRS2 && !poSRS->IsSame(poSRS2))
{
CPLDebug("VRT", "SRS of layer %s not consistant with layer SRS. "
"Trying auto warping",
papoSrcLayers[iLayer]->GetName());
OGRCoordinateTransformation* poCT =
OGRCreateCoordinateTransformation( poSRS2, poSRS );
OGRCoordinateTransformation* poReversedCT = (poCT != NULL) ?
OGRCreateCoordinateTransformation( poSRS, poSRS2 ) : NULL;
if( poCT != NULL && poReversedCT != NULL )
papoSrcLayers[iLayer] = new OGRWarpedLayer(
papoSrcLayers[iLayer], TRUE, poCT, poReversedCT);
}
if( poSRS != NULL )
poSRS->Release();
}
}
int main( int nArgc, char ** papszArgv )
{
int nFirstSourceDataset = -1, bLayersWildcarded = TRUE, iArg;
const char *pszFormat = "ESRI Shapefile";
const char *pszTileIndexField = "LOCATION";
const char *pszOutputName = NULL;
int write_absolute_path = FALSE;
int skip_different_projection = FALSE;
char* current_path = NULL;
int accept_different_schemas = FALSE;
int bFirstWarningForNonMatchingAttributes = TRUE;
/* Check strict compilation and runtime library version as we use C++ API */
if (! GDAL_CHECK_VERSION(papszArgv[0]))
exit(1);
/* -------------------------------------------------------------------- */
/* Register format(s). */
/* -------------------------------------------------------------------- */
OGRRegisterAll();
/* -------------------------------------------------------------------- */
/* Processing command line arguments. */
/* -------------------------------------------------------------------- */
for( iArg = 1; iArg < nArgc; iArg++ )
{
if( EQUAL(papszArgv[iArg], "--utility_version") )
{
printf("%s was compiled against GDAL %s and is running against GDAL %s\n",
papszArgv[0], GDAL_RELEASE_NAME, GDALVersionInfo("RELEASE_NAME"));
return 0;
}
else if( EQUAL(papszArgv[iArg],"-f") && iArg < nArgc-1 )
{
pszFormat = papszArgv[++iArg];
}
else if( EQUAL(papszArgv[iArg],"-write_absolute_path"))
{
write_absolute_path = TRUE;
}
else if( EQUAL(papszArgv[iArg],"-skip_different_projection"))
{
skip_different_projection = TRUE;
}
else if( EQUAL(papszArgv[iArg],"-accept_different_schemas"))
{
accept_different_schemas = TRUE;
}
else if( EQUAL(papszArgv[iArg],"-tileindex") && iArg < nArgc-1 )
{
pszTileIndexField = papszArgv[++iArg];
}
else if( EQUAL(papszArgv[iArg],"-lnum")
|| EQUAL(papszArgv[iArg],"-lname") )
{
iArg++;
bLayersWildcarded = FALSE;
}
else if( papszArgv[iArg][0] == '-' )
Usage();
else if( pszOutputName == NULL )
pszOutputName = papszArgv[iArg];
else if( nFirstSourceDataset == -1 )
nFirstSourceDataset = iArg;
}
if( pszOutputName == NULL || nFirstSourceDataset == -1 )
Usage();
/* -------------------------------------------------------------------- */
/* Try to open as an existing dataset for update access. */
/* -------------------------------------------------------------------- */
OGRDataSource *poDstDS;
OGRLayer *poDstLayer = NULL;
poDstDS = OGRSFDriverRegistrar::Open( pszOutputName, TRUE );
/* -------------------------------------------------------------------- */
/* If that failed, find the driver so we can create the tile index.*/
/* -------------------------------------------------------------------- */
if( poDstDS == NULL )
{
OGRSFDriverRegistrar *poR = OGRSFDriverRegistrar::GetRegistrar();
OGRSFDriver *poDriver = NULL;
int iDriver;
for( iDriver = 0;
iDriver < poR->GetDriverCount() && poDriver == NULL;
iDriver++ )
{
if( EQUAL(poR->GetDriver(iDriver)->GetName(),pszFormat) )
{
poDriver = poR->GetDriver(iDriver);
}
}
if( poDriver == NULL )
{
fprintf( stderr, "Unable to find driver `%s'.\n", pszFormat );
fprintf( stderr, "The following drivers are available:\n" );
for( iDriver = 0; iDriver < poR->GetDriverCount(); iDriver++ )
{
fprintf( stderr, " -> `%s'\n", poR->GetDriver(iDriver)->GetName() );
}
exit( 1 );
}
if( !poDriver->TestCapability( ODrCCreateDataSource ) )
{
fprintf( stderr, "%s driver does not support data source creation.\n",
pszFormat );
exit( 1 );
}
/* -------------------------------------------------------------------- */
/* Now create it. */
/* -------------------------------------------------------------------- */
poDstDS = poDriver->CreateDataSource( pszOutputName, NULL );
if( poDstDS == NULL )
{
fprintf( stderr, "%s driver failed to create %s\n",
pszFormat, pszOutputName );
exit( 1 );
}
if( poDstDS->GetLayerCount() == 0 )
{
OGRFieldDefn oLocation( pszTileIndexField, OFTString );
oLocation.SetWidth( 200 );
if( nFirstSourceDataset < nArgc && papszArgv[nFirstSourceDataset][0] == '-' )
{
nFirstSourceDataset++;
}
OGRSpatialReference* poSrcSpatialRef = NULL;
/* Fetches the SRS of the first layer and use it when creating the tileindex layer */
if (nFirstSourceDataset < nArgc)
{
OGRDataSource* poDS = OGRSFDriverRegistrar::Open( papszArgv[nFirstSourceDataset],
FALSE );
if (poDS)
{
int iLayer;
for( iLayer = 0; iLayer < poDS->GetLayerCount(); iLayer++ )
{
int bRequested = bLayersWildcarded;
OGRLayer *poLayer = poDS->GetLayer(iLayer);
for( iArg = 1; iArg < nArgc && !bRequested; iArg++ )
{
if( EQUAL(papszArgv[iArg],"-lnum")
&& atoi(papszArgv[iArg+1]) == iLayer )
bRequested = TRUE;
else if( EQUAL(papszArgv[iArg],"-lname")
&& EQUAL(papszArgv[iArg+1],
poLayer->GetLayerDefn()->GetName()) )
bRequested = TRUE;
}
if( !bRequested )
continue;
if ( poLayer->GetSpatialRef() )
poSrcSpatialRef = poLayer->GetSpatialRef()->Clone();
break;
}
}
OGRDataSource::DestroyDataSource( poDS );
}
poDstLayer = poDstDS->CreateLayer( "tileindex", poSrcSpatialRef );
poDstLayer->CreateField( &oLocation, OFTString );
OGRSpatialReference::DestroySpatialReference( poSrcSpatialRef );
}
}
/* -------------------------------------------------------------------- */
/* Identify target layer and field. */
/* -------------------------------------------------------------------- */
int iTileIndexField;
poDstLayer = poDstDS->GetLayer(0);
if( poDstLayer == NULL )
{
fprintf( stderr, "Can't find any layer in output tileindex!\n" );
exit( 1 );
}
iTileIndexField =
poDstLayer->GetLayerDefn()->GetFieldIndex( pszTileIndexField );
if( iTileIndexField == -1 )
{
fprintf( stderr, "Can't find %s field in tile index dataset.\n",
pszTileIndexField );
exit( 1 );
}
OGRFeatureDefn* poFeatureDefn = NULL;
/* Load in memory existing file names in SHP */
int nExistingLayers = 0;
char** existingLayersTab = NULL;
OGRSpatialReference* alreadyExistingSpatialRef = NULL;
int alreadyExistingSpatialRefValid = FALSE;
nExistingLayers = poDstLayer->GetFeatureCount();
if (nExistingLayers)
{
int i;
existingLayersTab = (char**)CPLMalloc(nExistingLayers * sizeof(char*));
for(i=0;i<nExistingLayers;i++)
{
OGRFeature* feature = poDstLayer->GetNextFeature();
existingLayersTab[i] = CPLStrdup(feature->GetFieldAsString( iTileIndexField));
if (i == 0)
{
OGRDataSource *poDS;
char* filename = CPLStrdup(existingLayersTab[i]);
int j;
for(j=strlen(filename)-1;j>=0;j--)
{
if (filename[j] == ',')
break;
}
if (j >= 0)
{
int iLayer = atoi(filename + j + 1);
filename[j] = 0;
poDS = OGRSFDriverRegistrar::Open(filename,
FALSE );
if (poDS)
{
OGRLayer *poLayer = poDS->GetLayer(iLayer);
if (poLayer)
{
alreadyExistingSpatialRefValid = TRUE;
alreadyExistingSpatialRef =
(poLayer->GetSpatialRef()) ? poLayer->GetSpatialRef()->Clone() : NULL;
if (poFeatureDefn == NULL)
poFeatureDefn = poLayer->GetLayerDefn()->Clone();
}
OGRDataSource::DestroyDataSource( poDS );
}
}
}
}
}
if (write_absolute_path)
{
current_path = CPLGetCurrentDir();
if (current_path == NULL)
{
fprintf( stderr, "This system does not support the CPLGetCurrentDir call. "
"The option -write_absolute_path will have no effect\n");
write_absolute_path = FALSE;
}
}
/* ==================================================================== */
/* Process each input datasource in turn. */
/* ==================================================================== */
for(; nFirstSourceDataset < nArgc; nFirstSourceDataset++ )
{
int i;
OGRDataSource *poDS;
if( papszArgv[nFirstSourceDataset][0] == '-' )
{
nFirstSourceDataset++;
continue;
}
char* fileNameToWrite;
VSIStatBuf sStatBuf;
if (write_absolute_path && CPLIsFilenameRelative( papszArgv[nFirstSourceDataset] ) &&
VSIStat( papszArgv[nFirstSourceDataset], &sStatBuf ) == 0)
{
fileNameToWrite = CPLStrdup(CPLProjectRelativeFilename(current_path,papszArgv[nFirstSourceDataset]));
}
else
{
fileNameToWrite = CPLStrdup(papszArgv[nFirstSourceDataset]);
}
poDS = OGRSFDriverRegistrar::Open( papszArgv[nFirstSourceDataset],
FALSE );
if( poDS == NULL )
{
fprintf( stderr, "Failed to open dataset %s, skipping.\n",
papszArgv[nFirstSourceDataset] );
CPLFree(fileNameToWrite);
continue;
}
/* -------------------------------------------------------------------- */
/* Check all layers, and see if they match requests. */
/* -------------------------------------------------------------------- */
int iLayer;
for( iLayer = 0; iLayer < poDS->GetLayerCount(); iLayer++ )
{
int bRequested = bLayersWildcarded;
OGRLayer *poLayer = poDS->GetLayer(iLayer);
for( iArg = 1; iArg < nArgc && !bRequested; iArg++ )
{
if( EQUAL(papszArgv[iArg],"-lnum")
&& atoi(papszArgv[iArg+1]) == iLayer )
bRequested = TRUE;
else if( EQUAL(papszArgv[iArg],"-lname")
&& EQUAL(papszArgv[iArg+1],
poLayer->GetLayerDefn()->GetName()) )
bRequested = TRUE;
}
if( !bRequested )
continue;
/* Checks that the layer is not already in tileindex */
for(i=0;i<nExistingLayers;i++)
{
char szLocation[5000];
sprintf( szLocation, "%s,%d",
fileNameToWrite, iLayer );
if (EQUAL(szLocation, existingLayersTab[i]))
{
fprintf(stderr, "Layer %d of %s is already in tileindex. Skipping it.\n",
iLayer, papszArgv[nFirstSourceDataset]);
break;
}
}
if (i != nExistingLayers)
{
continue;
}
OGRSpatialReference* spatialRef = poLayer->GetSpatialRef();
if (alreadyExistingSpatialRefValid)
{
if ((spatialRef != NULL && alreadyExistingSpatialRef != NULL &&
spatialRef->IsSame(alreadyExistingSpatialRef) == FALSE) ||
((spatialRef != NULL) != (alreadyExistingSpatialRef != NULL)))
{
fprintf(stderr, "Warning : layer %d of %s is not using the same projection system as "
"other files in the tileindex. This may cause problems when "
"using it in MapServer for example.%s\n", iLayer, papszArgv[nFirstSourceDataset],
(skip_different_projection) ? " Skipping it" : "");
if (skip_different_projection)
{
continue;
}
}
}
else
{
alreadyExistingSpatialRefValid = TRUE;
alreadyExistingSpatialRef = (spatialRef) ? spatialRef->Clone() : NULL;
}
/* -------------------------------------------------------------------- */
/* Check if all layers in dataset have the same attributes schema. */
/* -------------------------------------------------------------------- */
if( poFeatureDefn == NULL )
{
poFeatureDefn = poLayer->GetLayerDefn()->Clone();
}
else if ( !accept_different_schemas )
{
OGRFeatureDefn* poFeatureDefnCur = poLayer->GetLayerDefn();
assert(NULL != poFeatureDefnCur);
int fieldCount = poFeatureDefnCur->GetFieldCount();
if( fieldCount != poFeatureDefn->GetFieldCount())
{
fprintf( stderr, "Number of attributes of layer %s of %s does not match ... skipping it.\n",
poLayer->GetLayerDefn()->GetName(), papszArgv[nFirstSourceDataset]);
if (bFirstWarningForNonMatchingAttributes)
{
fprintf( stderr, "Note : you can override this behaviour with -accept_different_schemas option\n"
"but this may result in a tileindex incompatible with MapServer\n");
bFirstWarningForNonMatchingAttributes = FALSE;
}
continue;
}
int bSkip = FALSE;
for( int fn = 0; fn < poFeatureDefnCur->GetFieldCount(); fn++ )
{
OGRFieldDefn* poField = poFeatureDefn->GetFieldDefn(fn);
OGRFieldDefn* poFieldCur = poFeatureDefnCur->GetFieldDefn(fn);
/* XXX - Should those pointers be checked against NULL? */
assert(NULL != poField);
assert(NULL != poFieldCur);
if( poField->GetType() != poFieldCur->GetType()
|| poField->GetWidth() != poFieldCur->GetWidth()
|| poField->GetPrecision() != poFieldCur->GetPrecision()
|| !EQUAL( poField->GetNameRef(), poFieldCur->GetNameRef() ) )
{
fprintf( stderr, "Schema of attributes of layer %s of %s does not match ... skipping it.\n",
poLayer->GetLayerDefn()->GetName(), papszArgv[nFirstSourceDataset]);
if (bFirstWarningForNonMatchingAttributes)
{
fprintf( stderr, "Note : you can override this behaviour with -accept_different_schemas option\n"
"but this may result in a tileindex incompatible with MapServer\n");
bFirstWarningForNonMatchingAttributes = FALSE;
}
bSkip = TRUE;
break;
}
}
if (bSkip)
continue;
}
/* -------------------------------------------------------------------- */
/* Get layer extents, and create a corresponding polygon */
/* geometry. */
/* -------------------------------------------------------------------- */
OGREnvelope sExtents;
OGRPolygon oRegion;
OGRLinearRing oRing;
if( poLayer->GetExtent( &sExtents, TRUE ) != OGRERR_NONE )
{
fprintf( stderr, "GetExtent() failed on layer %s of %s, skipping.\n",
poLayer->GetLayerDefn()->GetName(),
papszArgv[nFirstSourceDataset] );
continue;
}
oRing.addPoint( sExtents.MinX, sExtents.MinY );
oRing.addPoint( sExtents.MinX, sExtents.MaxY );
oRing.addPoint( sExtents.MaxX, sExtents.MaxY );
oRing.addPoint( sExtents.MaxX, sExtents.MinY );
oRing.addPoint( sExtents.MinX, sExtents.MinY );
oRegion.addRing( &oRing );
/* -------------------------------------------------------------------- */
/* Add layer to tileindex. */
/* -------------------------------------------------------------------- */
char szLocation[5000];
OGRFeature oTileFeat( poDstLayer->GetLayerDefn() );
sprintf( szLocation, "%s,%d",
fileNameToWrite, iLayer );
oTileFeat.SetGeometry( &oRegion );
oTileFeat.SetField( iTileIndexField, szLocation );
if( poDstLayer->CreateFeature( &oTileFeat ) != OGRERR_NONE )
{
fprintf( stderr, "Failed to create feature on tile index ... terminating." );
OGRDataSource::DestroyDataSource( poDstDS );
exit( 1 );
}
}
/* -------------------------------------------------------------------- */
/* Cleanup this data source. */
/* -------------------------------------------------------------------- */
CPLFree(fileNameToWrite);
OGRDataSource::DestroyDataSource( poDS );
}
/* -------------------------------------------------------------------- */
/* Close tile index and clear buffers. */
/* -------------------------------------------------------------------- */
OGRDataSource::DestroyDataSource( poDstDS );
OGRFeatureDefn::DestroyFeatureDefn( poFeatureDefn );
if (alreadyExistingSpatialRef != NULL)
OGRSpatialReference::DestroySpatialReference( alreadyExistingSpatialRef );
CPLFree(current_path);
if (nExistingLayers)
{
int i;
for(i=0;i<nExistingLayers;i++)
{
CPLFree(existingLayersTab[i]);
}
CPLFree(existingLayersTab);
}
return 0;
}
bool ShpReader::SetupVectorProjection(OGRDataSource* OGRDataset, StudyControllerPtr studyController, OGRLayer* poLayer, VectorMapControllerPtr vectorMapController)
{
//If there exists a map layer, the vector file will be projected based on the projection of the map layer
if ( App::Inst().GetLayerTreeController()->GetNumMapLayers() > 0 )
{
ProjectionToolPtr projTool = studyController->GetProjectionTool();
OGRSpatialReference* currentShpSR = poLayer->GetSpatialRef();
if (!studyController->IsProjectData() && !studyController->IsGeographic())
{
needProjection=false;
Log::Inst().Write("The projection information for this study is being ignored.");
}
else
{
if(currentShpSR != NULL)
{
if(currentShpSR->IsGeographic())
{
Log::Inst().Write("Loading vector map with geographic coordinates.");
studyController->SetProjectData(true);
studyController->SetGeographic(true);
needProjection=true;
poTransform = studyController->GetProjectionTool();
}
else if(currentShpSR->IsProjected())
{
studyController->SetProjectData(true);
studyController->SetGeographic(false);
needProjection=true;
Log::Inst().Write("Loading vector map with projected coordinates.");
ProjectionToolPtr projTool = studyController->GetProjectionTool();
//OGRSpatialReference* currentLatLong = currentShpSR->CloneGeogCS();
OGRSpatialReference *targetCS= projTool->GetTargetCS ();
if(targetCS != NULL && !currentShpSR->IsSame(targetCS))
poTransform.reset(OGRCreateCoordinateTransformation(currentShpSR, targetCS));
else
needProjection=false;
}
else
{
// The user should probably be made aware of this warning.
Log::Inst().Warning("(Warning) Unknown type of coordinate system.");
return false;
}
}
else
{
//studyController->SetProjectData(false);
//studyController->SetGeographic(false);
needProjection=false;
Log::Inst().Write("Coordinate system information is not available for this map.");
Log::Inst().Write("As a result, the projection information for this study is being ignored.");
Log::Inst().Write("");
}
return true;
}
}
// App::Inst().GetLayerTreeController()->GetNumMapLayers() ==0
else
{
OGRSpatialReference* currentShpSR = poLayer->GetSpatialRef();
//OGRSpatialReference oSource;
if(currentShpSR != NULL)
{
if(currentShpSR->IsGeographic())
{
// lat/lon coordinates are using the geographic projection (aka, plate carrée)
Log::Inst().Write("Loading vector map with lat/long coordinates.");
studyController->SetProjectData(true);
studyController->SetGeographic(true);
needProjection=true;
// determine centre of map
VectorMapModelPtr vectorMapModel = vectorMapController->GetVectorMapModel();
float vectorMinX= vectorMapModel->GetVectorBoundary_MinX();
float vectorMinY = vectorMapModel->GetVectorBoundary_MinY();
float vectorMaxX = vectorMapModel->GetVectorBoundary_MaxX();
float vectorMaxY = vectorMapModel->GetVectorBoundary_MaxY();
studyController->SetCentreLongitude(float(vectorMinX + fabs(vectorMinX - vectorMaxX) / 2.0));
studyController->SetCentreLatitude(float(vectorMinY + fabs(vectorMinY - vectorMaxY) / 2.0));
studyController->SetFirstStandardParallel(vectorMinY);
studyController->SetSecondStandardParallel(vectorMaxY);
studyController->CalculateProjectionTool(currentShpSR);
poTransform = studyController->GetProjectionTool();
}
else if(currentShpSR->IsProjected())
{
studyController->SetProjectData(true);
studyController->SetGeographic(false);
Log::Inst().Write("Loading vector map with projected coordinates.");
studyController->CalculateProjectionTool(currentShpSR);
poTransform = studyController->GetProjectionTool();
needProjection=false;
}
else
{
// The user should probably be made aware of this warning.
Log::Inst().Warning("(Warning) Unknown type of coordinate system.");
return false;
}
}
else
{
studyController->SetProjectData(false);
studyController->SetGeographic(false);
needProjection=false;
Log::Inst().Write("Coordinate system information is not available for this map.");
Log::Inst().Write("As a result, the projection information for this study is being ignored.");
Log::Inst().Write("To overlaid a Vector map on top of this map, the vector map must be specified in the same coordinate system as this map");
Log::Inst().Write("");
}
}
return true;
}
GDALTiler::GDALTiler(GDALDataset *poDataset, const Grid &grid, const TilerOptions &options):
mGrid(grid),
poDataset(poDataset),
options(options)
{
// Transformed bounds can give slightly different results on different threads unless mutexed
static std::mutex mutex;
std::lock_guard<std::mutex> lock(mutex);
// if the dataset is set we need to initialise the tile bounds and raster
// resolution from it.
if (poDataset != NULL) {
// Get the bounds of the dataset
double adfGeoTransform[6];
CRSBounds bounds;
if (poDataset->GetGeoTransform(adfGeoTransform) == CE_None) {
bounds = CRSBounds(adfGeoTransform[0],
adfGeoTransform[3] + (poDataset->GetRasterYSize() * adfGeoTransform[5]),
adfGeoTransform[0] + (poDataset->GetRasterXSize() * adfGeoTransform[1]),
adfGeoTransform[3]);
} else {
throw CTBException("Could not get transformation information from source dataset");
}
// Find out whether the dataset SRS matches that of the grid
const char *srcWKT = poDataset->GetProjectionRef();
if (!strlen(srcWKT))
throw CTBException("The source dataset does not have a spatial reference system assigned");
OGRSpatialReference srcSRS = OGRSpatialReference(srcWKT);
OGRSpatialReference gridSRS = mGrid.getSRS();
if (!srcSRS.IsSame(&gridSRS)) { // it doesn't match
// Check the srs is valid
switch(srcSRS.Validate()) {
case OGRERR_NONE:
break;
case OGRERR_CORRUPT_DATA:
throw CTBException("The source spatial reference system appears to be corrupted");
break;
case OGRERR_UNSUPPORTED_SRS:
throw CTBException("The source spatial reference system is not supported");
break;
default:
throw CTBException("There is an unhandled return value from `srcSRS.Validate()`");
}
// We need to transform the bounds to the grid SRS
double x[4] = { bounds.getMinX(), bounds.getMaxX(), bounds.getMaxX(), bounds.getMinX() };
double y[4] = { bounds.getMinY(), bounds.getMinY(), bounds.getMaxY(), bounds.getMaxY() };
OGRCoordinateTransformation *transformer = OGRCreateCoordinateTransformation(&srcSRS, &gridSRS);
if (transformer == NULL) {
throw CTBException("The source dataset to tile grid coordinate transformation could not be created");
} else if (transformer->Transform(4, x, y) != true) {
delete transformer;
throw CTBException("Could not transform dataset bounds to tile spatial reference system");
}
delete transformer;
// Get the min and max values of the transformed coordinates
double minX = std::min(std::min(x[0], x[1]), std::min(x[2], x[3])),
maxX = std::max(std::max(x[0], x[1]), std::max(x[2], x[3])),
minY = std::min(std::min(y[0], y[1]), std::min(y[2], y[3])),
maxY = std::max(std::max(y[0], y[1]), std::max(y[2], y[3]));
mBounds = CRSBounds(minX, minY, maxX, maxY); // set the bounds
mResolution = mBounds.getWidth() / poDataset->GetRasterXSize(); // set the resolution
// cache the SRS string for use in reprojections later
char *srsWKT = NULL;
if (gridSRS.exportToWkt(&srsWKT) != OGRERR_NONE) {
CPLFree(srsWKT);
throw CTBException("Could not create grid WKT string");
}
crsWKT = srsWKT;
CPLFree(srsWKT);
srsWKT = NULL;
} else { // no reprojection is necessary
mBounds = bounds; // use the existing dataset bounds
mResolution = std::abs(adfGeoTransform[1]); // use the existing dataset resolution
}
poDataset->Reference(); // increase the refcount of the dataset
}
}
OGRLayer* OGRVRTDataSource::InstanciateWarpedLayer(
CPLXMLNode *psLTree,
const char *pszVRTDirectory,
int bUpdate,
int nRecLevel)
{
if( !EQUAL(psLTree->pszValue,"OGRVRTWarpedLayer") )
return NULL;
CPLXMLNode *psSubNode;
OGRLayer* poSrcLayer = NULL;
for( psSubNode=psLTree->psChild;
psSubNode != NULL;
psSubNode=psSubNode->psNext )
{
if( psSubNode->eType != CXT_Element )
continue;
poSrcLayer = InstanciateLayer(psSubNode, pszVRTDirectory,
bUpdate, nRecLevel + 1);
if( poSrcLayer != NULL )
break;
}
if( poSrcLayer == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Cannot instanciate source layer" );
return NULL;
}
const char* pszTargetSRS = CPLGetXMLValue(psLTree, "TargetSRS", NULL);
if( pszTargetSRS == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Missing TargetSRS element within OGRVRTWarpedLayer" );
delete poSrcLayer;
return NULL;
}
const char* pszGeomFieldName = CPLGetXMLValue(psLTree, "WarpedGeomFieldName", NULL);
int iGeomField = 0;
if( pszGeomFieldName != NULL )
{
iGeomField = poSrcLayer->GetLayerDefn()->GetGeomFieldIndex(pszGeomFieldName);
if( iGeomField < 0 )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Cannot find source geometry field '%s'", pszGeomFieldName );
delete poSrcLayer;
return NULL;
}
}
OGRSpatialReference* poSrcSRS;
OGRSpatialReference* poTargetSRS;
const char* pszSourceSRS = CPLGetXMLValue(psLTree, "SrcSRS", NULL);
if( pszSourceSRS == NULL )
{
poSrcSRS = poSrcLayer->GetLayerDefn()->GetGeomFieldDefn(iGeomField)->GetSpatialRef();
if( poSrcSRS != NULL)
poSrcSRS = poSrcSRS->Clone();
}
else
{
poSrcSRS = new OGRSpatialReference();
if( poSrcSRS->SetFromUserInput(pszSourceSRS) != OGRERR_NONE )
{
delete poSrcSRS;
poSrcSRS = NULL;
}
}
if( poSrcSRS == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Failed to import source SRS" );
delete poSrcLayer;
return NULL;
}
poTargetSRS = new OGRSpatialReference();
if( poTargetSRS->SetFromUserInput(pszTargetSRS) != OGRERR_NONE )
{
delete poTargetSRS;
poTargetSRS = NULL;
}
if( poTargetSRS == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"Failed to import target SRS" );
delete poSrcSRS;
delete poSrcLayer;
return NULL;
}
if( pszSourceSRS == NULL && poSrcSRS->IsSame(poTargetSRS) )
{
delete poSrcSRS;
delete poTargetSRS;
return poSrcLayer;
}
OGRCoordinateTransformation* poCT =
OGRCreateCoordinateTransformation( poSrcSRS, poTargetSRS );
OGRCoordinateTransformation* poReversedCT = (poCT != NULL) ?
OGRCreateCoordinateTransformation( poTargetSRS, poSrcSRS ) : NULL;
delete poSrcSRS;
delete poTargetSRS;
if( poCT == NULL )
{
delete poSrcLayer;
return NULL;
}
/* -------------------------------------------------------------------- */
/* Build the OGRWarpedLayer. */
/* -------------------------------------------------------------------- */
OGRWarpedLayer* poLayer = new OGRWarpedLayer(poSrcLayer, iGeomField,
TRUE, poCT, poReversedCT);
/* -------------------------------------------------------------------- */
/* Set Extent if provided */
/* -------------------------------------------------------------------- */
const char* pszExtentXMin = CPLGetXMLValue( psLTree, "ExtentXMin", NULL );
const char* pszExtentYMin = CPLGetXMLValue( psLTree, "ExtentYMin", NULL );
const char* pszExtentXMax = CPLGetXMLValue( psLTree, "ExtentXMax", NULL );
const char* pszExtentYMax = CPLGetXMLValue( psLTree, "ExtentYMax", NULL );
if( pszExtentXMin != NULL && pszExtentYMin != NULL &&
pszExtentXMax != NULL && pszExtentYMax != NULL )
{
poLayer->SetExtent( CPLAtof(pszExtentXMin),
CPLAtof(pszExtentYMin),
CPLAtof(pszExtentXMax),
CPLAtof(pszExtentYMax) );
}
return poLayer;
}
int GDALRPCTransform( void *pTransformArg, int bDstToSrc,
int nPointCount,
double *padfX, double *padfY, double *padfZ,
int *panSuccess )
{
VALIDATE_POINTER1( pTransformArg, "GDALRPCTransform", 0 );
GDALRPCTransformInfo *psTransform = (GDALRPCTransformInfo *) pTransformArg;
GDALRPCInfo *psRPC = &(psTransform->sRPC);
int i;
if( psTransform->bReversed )
bDstToSrc = !bDstToSrc;
int bands[1] = {1};
int nRasterXSize = 0, nRasterYSize = 0;
/* -------------------------------------------------------------------- */
/* Lazy opening of the optionnal DEM file. */
/* -------------------------------------------------------------------- */
if(psTransform->pszDEMPath != NULL &&
psTransform->bHasTriedOpeningDS == FALSE)
{
int bIsValid = FALSE;
psTransform->bHasTriedOpeningDS = TRUE;
psTransform->poDS = (GDALDataset *)
GDALOpen( psTransform->pszDEMPath, GA_ReadOnly );
if(psTransform->poDS != NULL && psTransform->poDS->GetRasterCount() >= 1)
{
const char* pszSpatialRef = psTransform->poDS->GetProjectionRef();
if (pszSpatialRef != NULL && pszSpatialRef[0] != '\0')
{
OGRSpatialReference* poWGSSpaRef =
new OGRSpatialReference(SRS_WKT_WGS84);
OGRSpatialReference* poDSSpaRef =
new OGRSpatialReference(pszSpatialRef);
if(!poWGSSpaRef->IsSame(poDSSpaRef))
psTransform->poCT =OGRCreateCoordinateTransformation(
poWGSSpaRef, poDSSpaRef );
delete poWGSSpaRef;
delete poDSSpaRef;
}
if (psTransform->poDS->GetGeoTransform(
psTransform->adfGeoTransform) == CE_None &&
GDALInvGeoTransform( psTransform->adfGeoTransform,
psTransform->adfReverseGeoTransform ))
{
bIsValid = TRUE;
}
}
if (!bIsValid && psTransform->poDS != NULL)
{
GDALClose(psTransform->poDS);
psTransform->poDS = NULL;
}
}
if (psTransform->poDS)
{
nRasterXSize = psTransform->poDS->GetRasterXSize();
nRasterYSize = psTransform->poDS->GetRasterYSize();
}
/* -------------------------------------------------------------------- */
/* The simple case is transforming from lat/long to pixel/line. */
/* Just apply the equations directly. */
/* -------------------------------------------------------------------- */
if( bDstToSrc )
{
for( i = 0; i < nPointCount; i++ )
{
if(psTransform->poDS)
{
double dfX, dfY;
//check if dem is not in WGS84 and transform points padfX[i], padfY[i]
if(psTransform->poCT)
{
double dfXOrig = padfX[i];
double dfYOrig = padfY[i];
double dfZOrig = padfZ[i];
if (!psTransform->poCT->Transform(
1, &dfXOrig, &dfYOrig, &dfZOrig))
{
panSuccess[i] = FALSE;
continue;
}
GDALApplyGeoTransform( psTransform->adfReverseGeoTransform,
dfXOrig, dfYOrig, &dfX, &dfY );
}
else
GDALApplyGeoTransform( psTransform->adfReverseGeoTransform,
padfX[i], padfY[i], &dfX, &dfY );
int dX = int(dfX);
int dY = int(dfY);
if (!(dX >= 0 && dY >= 0 &&
dX+2 <= nRasterXSize && dY+2 <= nRasterYSize))
{
panSuccess[i] = FALSE;
continue;
}
double dfDEMH(0);
double dfDeltaX = dfX - dX;
double dfDeltaY = dfY - dY;
if(psTransform->eResampleAlg == DRA_Cubic)
{
int dXNew = dX - 1;
int dYNew = dY - 1;
if (!(dXNew >= 0 && dYNew >= 0 && dXNew + 4 <= nRasterXSize && dYNew + 4 <= nRasterYSize))
{
panSuccess[i] = FALSE;
continue;
}
//cubic interpolation
int adElevData[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
CPLErr eErr = psTransform->poDS->RasterIO(GF_Read, dXNew, dYNew, 4, 4,
&adElevData, 4, 4,
GDT_Int32, 1, bands, 0, 0, 0);
if(eErr != CE_None)
{
panSuccess[i] = FALSE;
continue;
}
double dfSumH(0);
for ( int i = 0; i < 5; i++ )
{
// Loop across the X axis
for ( int j = 0; j < 5; j++ )
{
// Calculate the weight for the specified pixel according
// to the bicubic b-spline kernel we're using for
// interpolation
int dKernIndX = j - 1;
int dKernIndY = i - 1;
double dfPixelWeight = BiCubicKernel(dKernIndX - dfDeltaX) * BiCubicKernel(dKernIndY - dfDeltaY);
// Create a sum of all values
// adjusted for the pixel's calculated weight
dfSumH += adElevData[j + i * 4] * dfPixelWeight;
}
}
dfDEMH = dfSumH;
}
else if(psTransform->eResampleAlg == DRA_Bilinear)
{
if (!(dX >= 0 && dY >= 0 && dX + 2 <= nRasterXSize && dY + 2 <= nRasterYSize))
{
panSuccess[i] = FALSE;
continue;
}
//bilinear interpolation
int anElevData[4] = {0,0,0,0};
CPLErr eErr = psTransform->poDS->RasterIO(GF_Read, dX, dY, 2, 2,
&anElevData, 2, 2,
GDT_Int32, 1, bands, 0, 0, 0);
if(eErr != CE_None)
{
panSuccess[i] = FALSE;
continue;
}
double dfDeltaX1 = 1.0 - dfDeltaX;
double dfDeltaY1 = 1.0 - dfDeltaY;
double dfXZ1 = anElevData[0] * dfDeltaX1 + anElevData[1] * dfDeltaX;
double dfXZ2 = anElevData[2] * dfDeltaX1 + anElevData[3] * dfDeltaX;
double dfYZ = dfXZ1 * dfDeltaY1 + dfXZ2 * dfDeltaY;
dfDEMH = dfYZ;
}
else
{
if (!(dX >= 0 && dY >= 0 && dX <= nRasterXSize && dY <= nRasterYSize))
{
panSuccess[i] = FALSE;
continue;
}
CPLErr eErr = psTransform->poDS->RasterIO(GF_Read, dX, dY, 1, 1,
&dfDEMH, 1, 1,
GDT_Int32, 1, bands, 0, 0, 0);
if(eErr != CE_None)
{
panSuccess[i] = FALSE;
continue;
}
}
RPCTransformPoint( psRPC, padfX[i], padfY[i],
padfZ[i] + (psTransform->dfHeightOffset + dfDEMH) *
psTransform->dfHeightScale,
padfX + i, padfY + i );
}
else
RPCTransformPoint( psRPC, padfX[i], padfY[i],
padfZ[i] + psTransform->dfHeightOffset *
psTransform->dfHeightScale,
padfX + i, padfY + i );
panSuccess[i] = TRUE;
}
return TRUE;
}
/* -------------------------------------------------------------------- */
/* Compute the inverse (pixel/line/height to lat/long). This */
/* function uses an iterative method from an initial linear */
/* approximation. */
/* -------------------------------------------------------------------- */
for( i = 0; i < nPointCount; i++ )
{
double dfResultX, dfResultY;
if(psTransform->poDS)
{
RPCInverseTransformPoint( psTransform, padfX[i], padfY[i],
padfZ[i] + psTransform->dfHeightOffset *
psTransform->dfHeightScale,
&dfResultX, &dfResultY );
double dfX, dfY;
//check if dem is not in WGS84 and transform points padfX[i], padfY[i]
if(psTransform->poCT)
{
double dfZ = 0;
if (!psTransform->poCT->Transform(1, &dfResultX, &dfResultY, &dfZ))
{
panSuccess[i] = FALSE;
continue;
}
}
GDALApplyGeoTransform( psTransform->adfReverseGeoTransform,
dfResultX, dfResultY, &dfX, &dfY );
int dX = int(dfX);
int dY = int(dfY);
double dfDEMH(0);
double dfDeltaX = dfX - dX;
double dfDeltaY = dfY - dY;
if(psTransform->eResampleAlg == DRA_Cubic)
{
int dXNew = dX - 1;
int dYNew = dY - 1;
if (!(dXNew >= 0 && dYNew >= 0 && dXNew + 4 <= nRasterXSize && dYNew + 4 <= nRasterYSize))
{
panSuccess[i] = FALSE;
continue;
}
//cubic interpolation
int adElevData[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
CPLErr eErr = psTransform->poDS->RasterIO(GF_Read, dXNew, dYNew, 4, 4,
&adElevData, 4, 4,
GDT_Int32, 1, bands, 0, 0, 0);
if(eErr != CE_None)
{
panSuccess[i] = FALSE;
continue;
}
double dfSumH(0);
for ( int i = 0; i < 5; i++ )
{
// Loop across the X axis
for ( int j = 0; j < 5; j++ )
{
// Calculate the weight for the specified pixel according
// to the bicubic b-spline kernel we're using for
// interpolation
int dKernIndX = j - 1;
int dKernIndY = i - 1;
double dfPixelWeight = BiCubicKernel(dKernIndX - dfDeltaX) * BiCubicKernel(dKernIndY - dfDeltaY);
// Create a sum of all values
// adjusted for the pixel's calculated weight
dfSumH += adElevData[j + i * 4] * dfPixelWeight;
}
}
dfDEMH = dfSumH;
}
else if(psTransform->eResampleAlg == DRA_Bilinear)
{
if (!(dX >= 0 && dY >= 0 && dX + 2 <= nRasterXSize && dY + 2 <= nRasterYSize))
{
panSuccess[i] = FALSE;
continue;
}
//bilinear interpolation
int adElevData[4] = {0,0,0,0};
CPLErr eErr = psTransform->poDS->RasterIO(GF_Read, dX, dY, 2, 2,
&adElevData, 2, 2,
GDT_Int32, 1, bands, 0, 0, 0);
if(eErr != CE_None)
{
panSuccess[i] = FALSE;
continue;
}
double dfDeltaX1 = 1.0 - dfDeltaX;
double dfDeltaY1 = 1.0 - dfDeltaY;
double dfXZ1 = adElevData[0] * dfDeltaX1 + adElevData[1] * dfDeltaX;
double dfXZ2 = adElevData[2] * dfDeltaX1 + adElevData[3] * dfDeltaX;
double dfYZ = dfXZ1 * dfDeltaY1 + dfXZ2 * dfDeltaY;
dfDEMH = dfYZ;
}
else
{
if (!(dX >= 0 && dY >= 0 && dX <= nRasterXSize && dY <= nRasterYSize))
{
panSuccess[i] = FALSE;
continue;
}
CPLErr eErr = psTransform->poDS->RasterIO(GF_Read, dX, dY, 1, 1,
&dfDEMH, 1, 1,
GDT_Int32, 1, bands, 0, 0, 0);
if(eErr != CE_None)
{
panSuccess[i] = FALSE;
continue;
}
}
RPCInverseTransformPoint( psTransform, padfX[i], padfY[i],
padfZ[i] + (psTransform->dfHeightOffset + dfDEMH) *
psTransform->dfHeightScale,
&dfResultX, &dfResultY );
}
else
{
RPCInverseTransformPoint( psTransform, padfX[i], padfY[i],
padfZ[i] + psTransform->dfHeightOffset *
psTransform->dfHeightScale,
&dfResultX, &dfResultY );
}
padfX[i] = dfResultX;
padfY[i] = dfResultY;
panSuccess[i] = TRUE;
}
return TRUE;
}
void wxGISRasterRGBRenderer::Draw(wxGISDataset* pRasterDataset, wxGISEnumDrawPhase DrawPhase, IDisplay* pDisplay, ITrackCancel* pTrackCancel)
{
wxGISRasterDataset* pRaster = dynamic_cast<wxGISRasterDataset*>(pRasterDataset);
if(!pRaster)
return;
IDisplayTransformation* pDisplayTransformation = pDisplay->GetDisplayTransformation();
OGRSpatialReference* pDisplaySpatialReference = pDisplayTransformation->GetSpatialReference();
OGRSpatialReference* pRasterSpatialReference = pRaster->GetSpatialReference();
bool IsSpaRefSame(true);
if(pDisplaySpatialReference && pDisplaySpatialReference)
IsSpaRefSame = pDisplaySpatialReference->IsSame(pRasterSpatialReference);
OGREnvelope VisibleBounds = pDisplayTransformation->GetVisibleBounds();
OGREnvelope* pRasterExtent = pRaster->GetEnvelope();
OGREnvelope RasterEnvelope, DisplayEnvelope;
if(!IsSpaRefSame)
{
RasterEnvelope = TransformEnvelope(pRasterExtent, pRasterSpatialReference, pDisplaySpatialReference);
}
else
{
RasterEnvelope = *pRasterExtent;
}
bool IsZoomIn(false);
//IsZoomIn = RasterEnvelope.Contains(VisibleBounds);
IsZoomIn = RasterEnvelope.MaxX > VisibleBounds.MaxX || RasterEnvelope.MaxY > VisibleBounds.MaxY || RasterEnvelope.MinX < VisibleBounds.MinX || RasterEnvelope.MinY < VisibleBounds.MinY;
if(IsZoomIn)
{
//intersect bounds
OGREnvelope DrawBounds;
DrawBounds.MinX = MAX(RasterEnvelope.MinX, VisibleBounds.MinX);
DrawBounds.MinY = MAX(RasterEnvelope.MinY, VisibleBounds.MinY);
DrawBounds.MaxX = MIN(RasterEnvelope.MaxX, VisibleBounds.MaxX);
DrawBounds.MaxY = MIN(RasterEnvelope.MaxY, VisibleBounds.MaxY);
OGRRawPoint OGRRawPoints[2];
OGRRawPoints[0].x = DrawBounds.MinX;
OGRRawPoints[0].y = DrawBounds.MinY;
OGRRawPoints[1].x = DrawBounds.MaxX;
OGRRawPoints[1].y = DrawBounds.MaxY;
wxPoint* pDCPoints = pDisplayTransformation->TransformCoordWorld2DC(OGRRawPoints, 2);
if(!pDCPoints)
{
wxDELETEA(pDCPoints);
return;
}
int nDCXOrig = pDCPoints[0].x;
int nDCYOrig = pDCPoints[1].y;
int nWidth = pDCPoints[1].x - pDCPoints[0].x;
int nHeight = pDCPoints[0].y - pDCPoints[1].y;
wxDELETEA(pDCPoints);
if(nWidth <= 20 || nHeight <= 20)
return;
GDALDataset* pGDALDataset = pRaster->GetRaster();
int nBandCount = pGDALDataset->GetRasterCount();
//hack!
int bands[3];
if(nBandCount < 3)
{
bands[0] = 1;
bands[1] = 1;
bands[2] = 1;
}
else
{
bands[0] = 1;
bands[1] = 2;
bands[2] = 3;
}
double adfGeoTransform[6] = { 0, 0, 0, 0, 0, 0 };
double adfReverseGeoTransform[6] = { 0, 0, 0, 0, 0, 0 };
CPLErr err = pGDALDataset->GetGeoTransform(adfGeoTransform);
bool bNoTransform(false);
if(err != CE_None)
{
bNoTransform = true;
}
else
{
int nRes = GDALInvGeoTransform( adfGeoTransform, adfReverseGeoTransform );
}
//2. get image data from raster - draw part of the raster
if(IsSpaRefSame)
{
double rMinX, rMinY, rMaxX, rMaxY;
int nXSize = pGDALDataset->GetRasterXSize();
int nYSize = pGDALDataset->GetRasterYSize();
if(bNoTransform)
{
rMinX = DrawBounds.MinX;
rMaxX = DrawBounds.MaxX;
rMaxY = nYSize - DrawBounds.MinY;
rMinY = nYSize - DrawBounds.MaxY;
}
else
{
GDALApplyGeoTransform( adfReverseGeoTransform, DrawBounds.MinX, DrawBounds.MinY, &rMinX, &rMaxY );
GDALApplyGeoTransform( adfReverseGeoTransform, DrawBounds.MaxX, DrawBounds.MaxY, &rMaxX, &rMinY );
}
//double rRealMinX, rRealMinY, rRealMaxX, rRealMaxY;
//rRealMinX = MIN(rMinX, rMaxX);
//rRealMinY = MIN(rMinY, rMaxY);
//rRealMaxX = MAX(rMinX, rMaxX);
//rRealMaxY = MAX(rMinY, rMaxY);
double rImgWidth = rMaxX - rMinX;
double rImgHeight = rMaxY - rMinY;
int nImgWidth = ceil(rImgWidth) + 1;
int nImgHeight = ceil(rImgHeight) + 1;
//read in buffer
int nMinX = floor(rMinX);
int nMinY = floor(rMinY);
if(nMinX < 0) nMinX = 0;
if(nMinY < 0) nMinY = 0;
if(nImgWidth > nXSize - nMinX) nImgWidth -= 1;
if(nImgHeight > nYSize - nMinY) nImgHeight -= 1;
//create buffer
int nWidthOut = nWidth > nImgWidth ? nImgWidth : (double)nWidth + 1.0 /*/ 1.2 / 2 * 2/ 1.5 + 1) / 2*/;
int nHeightOut = nHeight > nImgHeight ? nImgHeight : (double)nHeight + 1.0 /*/ 1.2 / 2 * 2 / 1.5 + 1) / 2*/;
double rImgWidthOut = nWidth > nImgWidth ? rImgWidth : (double)nWidthOut * rImgWidth / nImgWidth;
double rImgHeightOut = nHeight > nImgHeight ? rImgHeight : (double)nHeightOut * rImgHeight / nImgHeight;
unsigned char* data = new unsigned char[nWidthOut * nHeightOut * 3];
err = pGDALDataset->AdviseRead(nMinX, nMinY, nImgWidth, nImgHeight, nWidthOut/*nImgWidth*/, nHeightOut/*nImgHeight*/, GDT_Byte, 3, bands, NULL);
if(err != CE_None)
{
wxDELETEA(data);//delete[](data);
return;
}
err = pGDALDataset->RasterIO(GF_Read, nMinX, nMinY, nImgWidth, nImgHeight, data, nWidthOut/*nImgWidth*/, nHeightOut/*nImgHeight*/, GDT_Byte, 3, bands, sizeof(unsigned char) * 3, 0, sizeof(unsigned char));
if(err != CE_None)
{
wxDELETEA(data);//delete[](data);
return;
}
//scale pTempData to data using interpolation methods
pDisplay->DrawBitmap(Scale(data, nWidthOut/*nImgWidth*/, nHeightOut/*nImgHeight*/, rImgWidthOut/*rImgWidth*/, rImgHeightOut/*rImgHeight*/, nWidth + 1 , nHeight + 1, rMinX - nMinX, rMinY - nMinY, /*enumGISQualityNearest*/enumGISQualityBilinear, pTrackCancel), nDCXOrig, nDCYOrig);
wxDELETEA(data);
}
else
{
//void *hTransformArg = GDALCreateGenImgProjTransformer( hSrcDS, pszSrcWKT, NULL, pszDstWKT, FALSE, 0, 1 );
//GDALDestroyGenImgProjTransformer( hTransformArg );
//// //get new envelope - it may rotate
//// OGRCoordinateTransformation *poCT = OGRCreateCoordinateTransformation( pDisplaySpatialReference, pRasterSpatialReference);
////// get real envelope
////// poCT->Transform(1, &pRasterExtent->MaxX, &pRasterExtent->MaxY);
////// poCT->Transform(1, &pRasterExtent->MinX, &pRasterExtent->MinY);
////// poCT->Transform(1, &pRasterExtent->MaxX, &pRasterExtent->MinY);
////// poCT->Transform(1, &pRasterExtent->MinX, &pRasterExtent->MaxY);
//// OCTDestroyCoordinateTransformation(poCT);
}
}
else
{
//1. convert newrasterenvelope to DC
OGRRawPoint OGRRawPoints[2];
OGRRawPoints[0].x = RasterEnvelope.MinX;
OGRRawPoints[0].y = RasterEnvelope.MinY;
OGRRawPoints[1].x = RasterEnvelope.MaxX;
OGRRawPoints[1].y = RasterEnvelope.MaxY;
wxPoint* pDCPoints = pDisplayTransformation->TransformCoordWorld2DC(OGRRawPoints, 2);
//2. get image data from raster - buffer size = DC_X and DC_Y - draw full raster
if(!pDCPoints)
{
wxDELETEA(pDCPoints);
return;
}
int nDCXOrig = pDCPoints[0].x;
int nDCYOrig = pDCPoints[1].y;
int nWidth = pDCPoints[1].x - pDCPoints[0].x;
int nHeight = pDCPoints[0].y - pDCPoints[1].y;
delete[](pDCPoints);
GDALDataset* pGDALDataset = pRaster->GetRaster();
int nImgWidth = pGDALDataset->GetRasterXSize();
int nImgHeight = pGDALDataset->GetRasterYSize();
int nBandCount = pGDALDataset->GetRasterCount();
//hack!
int bands[3];
if(nBandCount < 3)
{
bands[0] = 1;
bands[1] = 1;
bands[2] = 1;
}
else
{
bands[0] = 1;
bands[1] = 2;
bands[2] = 3;
}
//create buffer
unsigned char* data = new unsigned char[nWidth * nHeight * 3];
if(IsSpaRefSame)
{
//read in buffer
CPLErr err = pGDALDataset->RasterIO(GF_Read, 0, 0, nImgWidth, nImgHeight, data, nWidth, nHeight, GDT_Byte, 3, bands, sizeof(unsigned char) * 3, 0, sizeof(unsigned char));
if(err != CE_None)
{
wxDELETEA(data);
return;
}
}
else
{
//1. calc Width & Height of TempData with same aspect ratio of raster
//2. create pTempData buffer
unsigned char* pTempData;
//3. fill data
//4. for each pixel of data buffer get pixel from pTempData using OGRCreateCoordinateTransformation
//delete[](data);
}
//3. draw //think about transparancy!
wxImage ResultImage(nWidth, nHeight, data);
pDisplay->DrawBitmap(ResultImage, nDCXOrig, nDCYOrig);
//delete[](data);
}
}
int GDALRPCTransform( void *pTransformArg, int bDstToSrc,
int nPointCount,
double *padfX, double *padfY, double *padfZ,
int *panSuccess )
{
VALIDATE_POINTER1( pTransformArg, "GDALRPCTransform", 0 );
GDALRPCTransformInfo *psTransform = (GDALRPCTransformInfo *) pTransformArg;
GDALRPCInfo *psRPC = &(psTransform->sRPC);
int i;
if( psTransform->bReversed )
bDstToSrc = !bDstToSrc;
/* -------------------------------------------------------------------- */
/* Lazy opening of the optionnal DEM file. */
/* -------------------------------------------------------------------- */
if(psTransform->pszDEMPath != NULL &&
psTransform->bHasTriedOpeningDS == FALSE)
{
int bIsValid = FALSE;
psTransform->bHasTriedOpeningDS = TRUE;
psTransform->poDS = (GDALDataset *)
GDALOpen( psTransform->pszDEMPath, GA_ReadOnly );
if(psTransform->poDS != NULL && psTransform->poDS->GetRasterCount() >= 1)
{
const char* pszSpatialRef = psTransform->poDS->GetProjectionRef();
if (pszSpatialRef != NULL && pszSpatialRef[0] != '\0')
{
OGRSpatialReference* poWGSSpaRef =
new OGRSpatialReference(SRS_WKT_WGS84);
OGRSpatialReference* poDSSpaRef =
new OGRSpatialReference(pszSpatialRef);
if(!poWGSSpaRef->IsSame(poDSSpaRef))
psTransform->poCT =OGRCreateCoordinateTransformation(
poWGSSpaRef, poDSSpaRef );
delete poWGSSpaRef;
delete poDSSpaRef;
}
if (psTransform->poDS->GetGeoTransform(
psTransform->adfGeoTransform) == CE_None &&
GDALInvGeoTransform( psTransform->adfGeoTransform,
psTransform->adfReverseGeoTransform ))
{
bIsValid = TRUE;
}
}
if (!bIsValid && psTransform->poDS != NULL)
{
GDALClose(psTransform->poDS);
psTransform->poDS = NULL;
}
}
/* -------------------------------------------------------------------- */
/* The simple case is transforming from lat/long to pixel/line. */
/* Just apply the equations directly. */
/* -------------------------------------------------------------------- */
if( bDstToSrc )
{
for( i = 0; i < nPointCount; i++ )
{
if(psTransform->poDS)
{
double dfX, dfY;
//check if dem is not in WGS84 and transform points padfX[i], padfY[i]
if(psTransform->poCT)
{
double dfXOrig = padfX[i];
double dfYOrig = padfY[i];
double dfZOrig = padfZ[i];
if (!psTransform->poCT->Transform(
1, &dfXOrig, &dfYOrig, &dfZOrig))
{
panSuccess[i] = FALSE;
continue;
}
GDALApplyGeoTransform( psTransform->adfReverseGeoTransform,
dfXOrig, dfYOrig, &dfX, &dfY );
}
else
GDALApplyGeoTransform( psTransform->adfReverseGeoTransform,
padfX[i], padfY[i], &dfX, &dfY );
double dfDEMH(0);
if( !GDALRPCGetDEMHeight( psTransform, dfX, dfY, &dfDEMH) )
{
if( psTransform->bHasDEMMissingValue )
dfDEMH = psTransform->dfDEMMissingValue;
else
{
panSuccess[i] = FALSE;
continue;
}
}
RPCTransformPoint( psRPC, padfX[i], padfY[i],
padfZ[i] + (psTransform->dfHeightOffset + dfDEMH) *
psTransform->dfHeightScale,
padfX + i, padfY + i );
}
else
RPCTransformPoint( psRPC, padfX[i], padfY[i],
padfZ[i] + psTransform->dfHeightOffset *
psTransform->dfHeightScale,
padfX + i, padfY + i );
panSuccess[i] = TRUE;
}
return TRUE;
}
/* -------------------------------------------------------------------- */
/* Compute the inverse (pixel/line/height to lat/long). This */
/* function uses an iterative method from an initial linear */
/* approximation. */
/* -------------------------------------------------------------------- */
for( i = 0; i < nPointCount; i++ )
{
double dfResultX, dfResultY;
if(psTransform->poDS)
{
RPCInverseTransformPoint( psTransform, padfX[i], padfY[i],
padfZ[i] + psTransform->dfHeightOffset *
psTransform->dfHeightScale,
&dfResultX, &dfResultY );
double dfX, dfY;
//check if dem is not in WGS84 and transform points padfX[i], padfY[i]
if(psTransform->poCT)
{
double dfZ = 0;
if (!psTransform->poCT->Transform(1, &dfResultX, &dfResultY, &dfZ))
{
panSuccess[i] = FALSE;
continue;
}
}
GDALApplyGeoTransform( psTransform->adfReverseGeoTransform,
dfResultX, dfResultY, &dfX, &dfY );
double dfDEMH(0);
if( !GDALRPCGetDEMHeight( psTransform, dfX, dfY, &dfDEMH) )
{
if( psTransform->bHasDEMMissingValue )
dfDEMH = psTransform->dfDEMMissingValue;
else
{
panSuccess[i] = FALSE;
continue;
}
}
RPCInverseTransformPoint( psTransform, padfX[i], padfY[i],
padfZ[i] + (psTransform->dfHeightOffset + dfDEMH) *
psTransform->dfHeightScale,
&dfResultX, &dfResultY );
}
else
{
RPCInverseTransformPoint( psTransform, padfX[i], padfY[i],
padfZ[i] + psTransform->dfHeightOffset *
psTransform->dfHeightScale,
&dfResultX, &dfResultY );
}
padfX[i] = dfResultX;
padfY[i] = dfResultY;
panSuccess[i] = TRUE;
}
return TRUE;
}