int main(int argc, char **argv)
{
// Get data from ogr
OGRRegisterAll();
std::cout << "Opening: " << argv[1] << std::endl;
OGRDataSource *shp = OGRSFDriverRegistrar::Open(argv[1], FALSE);
IsValid(shp, "Error opening file.");
std::cout << "Shape contains " << shp->GetLayerCount() << " layers." << std::endl;
OGRLayer *layer = shp->GetLayerByName(argv[2]);
IsValid(layer, "Couldn't grab layer");
OGRSpatialReference *srcSRS = NULL;
srcSRS = layer->GetSpatialRef();
// Set up writing
const char *kDriverName = "ESRI Shapefile";
OGRSFDriver *shpDriver = OGRSFDriverRegistrar::GetRegistrar()->GetDriverByName(kDriverName);
IsValid(shpDriver, "Couldn't grab the shapefile driver.");
IsValid(argv[3], "Please provide a output shp.");
std::cout << "Writing to: " << argv[3] << std::endl;
OGRDataSource *shpOut = shpDriver->CreateDataSource(argv[3], NULL);
IsValid(shpOut, "Couldn't open output file");
OGRLayer *outLayer = shpOut->CreateLayer(layer->GetName(), srcSRS, wkbMultiLineString, NULL);
IsValid(outLayer, "Couldn't create an output layer");
// copy over the fields from the source file
OGRFeatureDefn *source = layer->GetLayerDefn();
for(int i=0; i < source->GetFieldCount(); i++){
OGRFieldDefn *field = source->GetFieldDefn(i);
if(outLayer->CreateField(field) != OGRERR_NONE) {
std::cout << "Couldn't make layer" << std::endl; exit(1);
};
}
// Loop through features and grab the hull and put it into CGAL then
// skeletonize the points
OGRFeature *feature;
int count = 0;
while((feature = layer->GetNextFeature()) != NULL)
{
OGRMultiPolygon *geometry = dynamic_cast<OGRMultiPolygon *>(OGRGeometryFactory::forceToMultiPolygon(feature->GetGeometryRef()));
IsValid(geometry, "No geometry.");
OGRFeature *outFeature = OGRFeature::CreateFeature(outLayer->GetLayerDefn());
IsValid(outFeature, "Couldn't make a feature.");
for(int i=0; i < source->GetFieldCount(); i++){
OGRField *field = feature->GetRawFieldRef(i);
outFeature->SetField(i, field);
}
OGRGeometry* line = NULL;
for(int i=0; i < geometry->getNumGeometries(); i++){
OGRGeometry* segment = BuildMultiLine(geometry->getGeometryRef(i));
if(segment != NULL){
if(line == NULL) { line = new OGRLineString; }
OGRGeometry* tmp = line->Union(segment);
if(tmp != NULL){
delete line;
line = tmp;
}
delete segment;
}
}
outFeature->SetGeometry(line);
if(outLayer->CreateFeature(outFeature) != OGRERR_NONE){
std::cout << "Couldn't create feature." << std::endl;
exit(1);
}
// clean up
OGRFeature::DestroyFeature(outFeature);
std::cout << std::endl << ++count << std::endl;
}
// cleanup
OGRDataSource::DestroyDataSource(shp);
OGRDataSource::DestroyDataSource(shpOut);
return 0;
}
void GDALMergeFaces::run()
{
OGRGeometry * geo;
leadingView.resetReading();
OGRFeature * f;
std::set<int> indizes;
while (f = leadingView.getNextFeature()) {
indizes.insert(f->GetFieldAsInteger(this->attriubteName.c_str()));
}
//int cluster_id = 1;
int counter = 1;
foreach (int cluster_id, indizes) {
//while(geo = joinCluster(cluster_id)) {
//cluster_id++;
geo = joinCluster(cluster_id);
if (counter % 100 == 0) {
DM::Logger(DM::Standard) << "merged " << counter << "/" << indizes.size();
}
counter++;
if (!geo)
continue;
if (wkbMultiPolygon == geo->getGeometryType()){
geo = geo->UnionCascaded();
OGRMultiPolygon * mgeo = (OGRMultiPolygon*) geo;
if (mgeo->getNumGeometries() == 0) {
continue;
}
geo = mgeo->getGeometryRef(0);
int n = mgeo->getNumGeometries();
for (int i = 0; i < n; i++) {
OGRFeature * f = combinedView.createFeature();
f->SetGeometry(mgeo->getGeometryRef(i));
f->SetField("test_id", counter);
}
continue;
}
OGRFeature * f = combinedView.createFeature();
f->SetGeometry(geo);
}
std::vector<Polygon> Polygon::polygons() const
{
std::vector<Polygon> polys;
OGRwkbGeometryType t = m_geom->getGeometryType();
if (t == wkbPolygon || t == wkbPolygon25D)
polys.emplace_back(*this);
else if (t == wkbMultiPolygon || t == wkbMultiPolygon25D)
{
// Not until GDAL 2.3
/**
OGRMultiPolygon *mPoly = m_geom->toMultiPolygon();
for (auto it = mPoly->begin(); it != mPoly->end(); ++it)
{
Polygon p;
p.m_geom.reset((*it)->clone());
polys.push_back(p);
}
**/
OGRMultiPolygon *mPoly = static_cast<OGRMultiPolygon *>(m_geom.get());
for (int i = 0; i < mPoly->getNumGeometries(); ++i)
{
Polygon p;
p.m_geom.reset(mPoly->getGeometryRef(i)->clone());
polys.push_back(p);
}
}
return polys;
}
int main() {
// Read in raster data for night time lights
int band_number = 1; // only one band, starts with one
Raster* raster = import_raster("raster.tif", band_number);
// Read in shapefile data containing municipality administrative regions
int layer_number = 0; // only one layer, starts with zero
OGRLayer* shapelayer = import_shapefile("MEX_adm2.shp", layer_number);
shapelayer->SetAttributeFilter("ID_1 = 1834"); // Filter for Yucatan
const int idx_of_number_field = 5; // Column number of municipality number
const int idx_of_name_field = 6; // Column number of municipality name
OGRFeature* poFeature;
int feature_ctr = 0;
while( (poFeature = shapelayer->GetNextFeature()) != NULL ) {
cerr << "Feature: " << feature_ctr++ << "\t";
int feature_num = poFeature->GetFieldAsInteger(idx_of_number_field);
string feature_name = poFeature->GetFieldAsString(idx_of_name_field);
OGRFeatureDefn *poFDefn = shapelayer->GetLayerDefn();
for( int iField = 0; iField < poFDefn->GetFieldCount(); iField++ ) {
OGRFieldDefn *poFieldDefn = poFDefn->GetFieldDefn( iField );
if( poFieldDefn->GetType() == OFTString ) cerr << poFeature->GetFieldAsString(iField) << ",";
}
OGRGeometry* poGeometry = poFeature->GetGeometryRef();
if( poGeometry != NULL) {
// For contiguous regions
if ( wkbFlatten(poGeometry->getGeometryType()) == wkbPolygon ) {
cerr << " polygon" << endl;
report_raster_data_within_polygon(raster, (OGRPolygon *) poGeometry, feature_num, feature_name);
// For disjoint regions
} else if ( wkbFlatten(poGeometry->getGeometryType()) == wkbMultiPolygon ) {
cerr << " multipolygon" << endl;
OGRMultiPolygon *multipolygon = (OGRMultiPolygon *) poGeometry;
for (int i = 0; i<multipolygon->getNumGeometries(); i++) {
report_raster_data_within_polygon(raster, (OGRPolygon*) multipolygon->getGeometryRef(i), feature_num, feature_name);
}
// Is this really the right shapefile?
} else {
cerr << "No polygon or multipolygon geometry for this feature: " << poGeometry->getGeometryName() << endl;
}
} else {
cerr << "No geometry for this feature" << endl;
}
}
OGRFeature::DestroyFeature( poFeature );
}
void Polygon::simplify(double distance_tolerance, double area_tolerance)
{
throwNoGeos();
auto deleteSmallRings = [area_tolerance](OGRGeometry *geom)
{
// Missing until GDAL 2.3.
// OGRPolygon *poly = geom->toPolygon();
OGRPolygon *poly = static_cast<OGRPolygon *>(geom);
std::vector<int> deleteRings;
for (int i = 0; i < poly->getNumInteriorRings(); ++i)
{
OGRLinearRing *lr = poly->getInteriorRing(i);
if (lr->get_Area() < area_tolerance)
deleteRings.push_back(i + 1);
}
// Note that interior rings are in a list with the exterior ring,
// which is why the ring numbers are offset by one when used in
// this context (what a mess).
for (auto i : deleteRings)
// Missing until 2.3
// poly->removeRing(i, true);
OGR_G_RemoveGeometry(gdal::toHandle(poly), i, true);
};
OGRGeometry *g = m_geom->SimplifyPreserveTopology(distance_tolerance);
m_geom.reset(g);
OGRwkbGeometryType t = m_geom->getGeometryType();
if (t == wkbPolygon || t == wkbPolygon25D)
deleteSmallRings(m_geom.get());
else if (t == wkbMultiPolygon || t == wkbMultiPolygon25D)
{
// Missing until 2.3
/**
OGRMultiPolygon *mpoly = m_geom->toMultiPolygon();
for (auto it = mpoly->begin(); it != mpoly->end(); ++it)
deleteSmallRings(*it);
**/
OGRMultiPolygon *mpoly = static_cast<OGRMultiPolygon *>(m_geom.get());
for (int i = 0; i < mpoly->getNumGeometries(); ++i)
deleteSmallRings(mpoly->getGeometryRef(i));
}
}
bool ShpReader::Open(std::wstring fullPath, StudyControllerPtr studyController,
VectorMapControllerPtr vectorMapController, ProgressDlgPtr progressDlg)
{
// Registers all format drivers built into GDAL/OGR.
OGRRegisterAll();
OGRDataSource *OGRDataset;
// Open vector file path
std::string tempStr( fullPath.begin(), fullPath.end() );
OGRDataset = OGRSFDriverRegistrar::Open( tempStr.c_str(), FALSE );
// Return if no vector files are found
if( OGRDataset == NULL )
{
Log::Inst().Warning("(Warning) Failed to open file at " + tempStr + ".");
return false;
}
if ( App::Inst().GetLayerTreeController()->GetNumMapLayers() >0 )
MapControllerPtr mapController= App::Inst().GetLayerTreeController()->GetLayerTreeModel()->GetStudy(0)->GetMapLayer(0)->GetMapController();
// It appears that shapefiles (*.SHP) only support up to one layer per file
// This will need to be further investigated for other vector filetypes (e.g., KML)
// For now just grab layer at position 0
OGRLayer *poLayer = OGRDataset->GetLayer( 0 );
// Determine the XY boundaries for the entire vector dataset
OGREnvelope psEnvelope;
VectorMapModelPtr vectorMapModel = vectorMapController->GetVectorMapModel();
poLayer->GetExtent( &psEnvelope );
vectorMapModel->SetVectorBoundary(psEnvelope);
if(!SetupVectorProjection(OGRDataset,studyController,poLayer,vectorMapController ))
{
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
if(progressDlg)
{
if(!progressDlg->Update(0, _T("Reading Vector Map Information...")))
{
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
}
GLdouble minX, minY, maxX, maxY;
minX = minY = std::numeric_limits<float>::max();
maxX = maxY = -std::numeric_limits<float>::max();
// Retrieve features from the dataset
OGRFeature *poFeature;
poLayer->ResetReading();
int numFeatures = poLayer->GetFeatureCount();
int count=0;
//Log::Inst().Write("Loading shapefile with the following meta data:");
while ( ( poFeature = poLayer->GetNextFeature() ) != NULL )
{
/////////////////////////////////////////////////
// PHASE 1: Retrieve METADATA from the dataset //
/////////////////////////////////////////////////
OGRFeatureDefn *poFDefn = poLayer->GetLayerDefn();
int iField;
for( iField = 0; iField < poFDefn->GetFieldCount(); iField++ )
{
OGRFieldDefn *poFieldDefn = poFDefn->GetFieldDefn( iField );
//if( poFieldDefn->GetType() == OFTInteger )
// printf( "%d,", poFeature->GetFieldAsInteger( iField ) );
//else if( poFieldDefn->GetType() == OFTReal )
// printf( "%.3f,", poFeature->GetFieldAsDouble(iField) );
//else if( poFieldDefn->GetType() == OFTString )
// printf( "%s,", poFeature->GetFieldAsString(iField) );
//else
// printf( "%s,", poFeature->GetFieldAsString(iField) );
//ofs << poFeature->GetFieldAsString(iField) << ",";
std::string metaData = poFeature->GetFieldAsString(iField);
// do something with the meta data...
//Log::Inst().Write(metaData);
}
count++;
if(progressDlg)
{
if(!progressDlg->Update(int(50 + (float(count)/numFeatures)*50)))
return false;
}
///////////////////////////////////////////////////
// PHASE 2: Retrieve GEOMETRIES from the dataset //
///////////////////////////////////////////////////
OGRGeometry *poGeometry;
poGeometry = poFeature->GetGeometryRef();
// Move to the next feature in the set if no geometry present
if( poGeometry == NULL )
{
OGRFeature::DestroyFeature( poFeature );
continue;
}
OGRwkbGeometryType whatisit = poGeometry->getGeometryType();
// Handle POINTS
if ( wkbFlatten( poGeometry->getGeometryType() ) == wkbPoint )
{
GeoVector* geoVector = new GeoVector();
OGRPoint *poPoint = (OGRPoint *) poGeometry;
geoVector->SetGeometryType( wkbPoint );
geoVector->SetNumberOfPoints( 1 );
if(needProjection)
{
double x,y;
x= poPoint->getX();
y= poPoint->getY();
if(!poTransform->Transform(1, &x, &y))
{
Log::Inst().Warning("(Warning) Failed to project vector map.");
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
// project and store the points
geoVector->pointX[0] = x;
geoVector->pointY[0] = y;
if(x < minX) minX=x;
if(y < minY) minY=y;
if(x > maxX) maxX=x;
if(y > maxY) maxY=y;
}
else
{
geoVector->pointX[0] = poPoint->getX();
geoVector->pointY[0] = poPoint->getY();
}
vectorMapController->GetVectorMapModel()->AddGeoVector( geoVector );
}
//Handle MultiPoint
else if ( wkbFlatten( poGeometry->getGeometryType() ) == wkbMultiPoint )
{
OGRMultiPoint *poMultiPoint = (OGRMultiPoint *) poGeometry;
for ( int currGeometry = 0; currGeometry < poMultiPoint->getNumGeometries(); currGeometry++ )
{
GeoVector* geoVector = new GeoVector();
OGRPoint *poPoint = ( OGRPoint* )poMultiPoint->getGeometryRef( currGeometry );
geoVector->SetGeometryType( wkbPoint );
geoVector->SetNumberOfPoints( 1 );
if(needProjection)
{
double x,y;
x= poPoint->getX();
y= poPoint->getY();
if(!poTransform->Transform(1, &x, &y))
{
Log::Inst().Warning("(Warning) Failed to project vector map.");
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
// project and store the points
geoVector->pointX[0] = x;
geoVector->pointY[0] = y;
if(x < minX) minX=x;
if(y < minY) minY=y;
if(x > maxX) maxX=x;
if(y > maxY) maxY=y;
}
else
{
geoVector->pointX[0] = poPoint->getX();
geoVector->pointY[0] = poPoint->getY();
}
vectorMapController->GetVectorMapModel()->AddGeoVector( geoVector );
}
}
//Handle Polylines
else if ( wkbFlatten( poGeometry->getGeometryType() ) == wkbLineString )
{
GeoVector* geoVector = new GeoVector();
OGRLineString *poLine = (OGRLineString *) poGeometry;
geoVector->SetGeometryType( wkbLineString );
geoVector->SetNumberOfPoints( poLine->getNumPoints() );
// Convert and store the points
for ( int currentPoint = 0; currentPoint < poLine->getNumPoints(); currentPoint++ )
{
// Convert and store the points
if(needProjection)
{
double x,y;
x= poLine->getX( currentPoint );
y= poLine->getY( currentPoint );
if(!poTransform->Transform(1, &x, &y))
{
Log::Inst().Warning("(Warning) Failed to project vector map.");
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
// project and store the points
geoVector->pointX[currentPoint] = x;
geoVector->pointY[currentPoint] = y;
if(x < minX) minX=x;
if(y < minY) minY=y;
if(x > maxX) maxX=x;
if(y > maxY) maxY=y;
}
else
{
geoVector->pointX[currentPoint] = poLine->getX( currentPoint );
geoVector->pointY[currentPoint] = poLine->getY( currentPoint );
}
}
vectorMapController->GetVectorMapModel()->AddGeoVector( geoVector );
}
// Handle MultiPolyLine
else if ( wkbFlatten( poGeometry->getGeometryType() ) == wkbMultiLineString )
{
OGRMultiLineString *poMultiLine = (OGRMultiLineString *) poGeometry;
for ( int currGeometry = 0; currGeometry < poMultiLine->getNumGeometries(); currGeometry++ )
{
GeoVector* geoVector = new GeoVector();
OGRLineString *poLine = ( OGRLineString* )poMultiLine->getGeometryRef( currGeometry );
geoVector->SetGeometryType( wkbLineString );
geoVector->SetNumberOfPoints( poLine->getNumPoints() );
for ( int currentPoint = 0; currentPoint < poLine ->getNumPoints(); currentPoint++ )
{
if(needProjection)
{
double x,y;
x= poLine->getX( currentPoint );
y= poLine->getY( currentPoint );
if(!poTransform->Transform(1, &x, &y))
{
Log::Inst().Warning("(Warning) Failed to project vector map.");
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
// project and store the points
geoVector->pointX[currentPoint] = x;
geoVector->pointY[currentPoint] = y;
if(x < minX) minX=x;
if(y < minY) minY=y;
if(x > maxX) maxX=x;
if(y > maxY) maxY=y;
}
else
{
geoVector->pointX[currentPoint] = poLine->getX( currentPoint );
geoVector->pointY[currentPoint] = poLine->getY( currentPoint );
}
}
vectorMapController->GetVectorMapModel()->AddGeoVector( geoVector );
}
}
// Handle POLYGONS
else if ( wkbFlatten( poGeometry->getGeometryType() ) == wkbPolygon )
{
GeoVector* geoVector = new GeoVector();
OGRPolygon *poPolygon = ( OGRPolygon* )poGeometry;
OGRLinearRing *poLinearRing = poPolygon->getExteriorRing();
geoVector->SetGeometryType( wkbLinearRing );
geoVector->SetNumberOfPoints( poLinearRing->getNumPoints() );
for ( int currentPoint = 0; currentPoint < poLinearRing->getNumPoints(); currentPoint++ )
{
if(needProjection)
{
double x,y;
x= poLinearRing->getX( currentPoint );
y= poLinearRing->getY( currentPoint );
if(!poTransform->Transform(1, &x, &y))
{
Log::Inst().Warning("(Warning) Failed to project vector map.");
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
// project and store the points
geoVector->pointX[currentPoint] = x;
geoVector->pointY[currentPoint] = y;
if(x < minX) minX=x;
if(y < minY) minY=y;
if(x > maxX) maxX=x;
if(y > maxY) maxY=y;
}
else
{
geoVector->pointX[currentPoint] = poLinearRing->getX( currentPoint );
geoVector->pointY[currentPoint] = poLinearRing->getY( currentPoint );
}
}
vectorMapController->GetVectorMapModel()->AddGeoVector( geoVector );
}
// Handle MULTIPOLYGONS
else if ( wkbFlatten( poGeometry->getGeometryType() ) == wkbMultiPolygon )
{
OGRMultiPolygon *poMultiPolygon = (OGRMultiPolygon *) poGeometry;
for ( int currGeometry = 0; currGeometry < poMultiPolygon->getNumGeometries(); currGeometry++ )
{
GeoVector* geoVector = new GeoVector();
// OGRPolygon http://www.gdal.org/ogr/classOGRPolygon.html
OGRPolygon *poPolygon = ( OGRPolygon* )poMultiPolygon->getGeometryRef( currGeometry );
// Retrieve the EXTERNAL ring of the multipolygon
OGRLinearRing *poLinearRing = poPolygon->getExteriorRing();
geoVector->SetGeometryType( wkbLinearRing );
geoVector->SetNumberOfPoints( poLinearRing->getNumPoints() );
for ( int currentPoint = 0; currentPoint < poLinearRing->getNumPoints(); currentPoint++ )
{
if(needProjection)
{
double x,y;
x= poLinearRing->getX( currentPoint );
y= poLinearRing->getY( currentPoint );
if(!poTransform->Transform(1, &x, &y))
{
Log::Inst().Warning("(Warning) Failed to project vector map.");
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
// project and store the points
geoVector->pointX[currentPoint] = x;
geoVector->pointY[currentPoint] = y;
if(x < minX) minX=x;
if(y < minY) minY=y;
if(x > maxX) maxX=x;
if(y > maxY) maxY=y;
}
else
{
geoVector->pointX[currentPoint] = poLinearRing->getX( currentPoint );
geoVector->pointY[currentPoint] = poLinearRing->getY( currentPoint );
}
}
vectorMapController->GetVectorMapModel()->AddGeoVector( geoVector );
// Retrieve all the INTERNAL rings of the multipolygon
for ( int currentRing = 0; currentRing < poPolygon->getNumInteriorRings(); currentRing++ )
{
GeoVector* geoVector2 = new GeoVector();
poLinearRing = poPolygon->getInteriorRing( currentRing );
geoVector2->SetGeometryType( wkbLinearRing );
geoVector2->SetNumberOfPoints( poLinearRing->getNumPoints() );
for ( int currentPoint = 0; currentPoint < poLinearRing->getNumPoints(); currentPoint++ )
{
if(needProjection)
{
double x,y;
x= poLinearRing->getX( currentPoint );
y= poLinearRing->getY( currentPoint );
if(!poTransform->Transform(1, &x, &y))
{
Log::Inst().Warning("(Warning) Failed to project vector map.");
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
// project and store the points
geoVector2->pointX[currentPoint] = x;
geoVector2->pointY[currentPoint] = y;
if(x < minX) minX=x;
if(y < minY) minY=y;
if(x > maxX) maxX=x;
if(y > maxY) maxY=y;
}
else
{
geoVector2->pointX[currentPoint] = poLinearRing->getX( currentPoint );
geoVector2->pointY[currentPoint] = poLinearRing->getY( currentPoint );
}
}
vectorMapController->GetVectorMapModel()->AddGeoVector( geoVector2 );
}
}
}
// Report a warning message for unhandled geometries
else
{
Log::Inst().Warning("(Warning) Could not load vector data: unsupported geometry.");
}
OGRFeature::DestroyFeature( poFeature );
}
if (float(minX) == float(maxX) && float(minY) == float(maxY))
{
Log::Inst().Warning("(Warning) Failed to project vector map.");
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
if(needProjection)
{
vectorMapModel->SetVectorBoundary_MinX(minX);
vectorMapModel->SetVectorBoundary_MaxX(maxX);
vectorMapModel->SetVectorBoundary_MinY(minY);
vectorMapModel->SetVectorBoundary_MaxY(maxY);
}
if(!SetupVectorScaling(vectorMapModel,progressDlg))
{
OGRDataset->DestroyDataSource(OGRDataset);
return false;
}
VectorMetaDataInfo(OGRDataset, studyController, vectorMapController);
OGRDataSource::DestroyDataSource( OGRDataset );
return true;
}
void OGRILI1Layer::PolygonizeAreaLayer()
{
if (poAreaLineLayer == 0) return;
//add all lines from poAreaLineLayer to collection
OGRGeometryCollection *gc = new OGRGeometryCollection();
poAreaLineLayer->ResetReading();
while (OGRFeature *feature = poAreaLineLayer->GetNextFeatureRef())
gc->addGeometry(feature->GetGeometryRef());
//polygonize lines
CPLDebug( "OGR_ILI", "Polygonizing layer %s with %d multilines", poAreaLineLayer->GetLayerDefn()->GetName(), gc->getNumGeometries());
OGRMultiPolygon* polys = Polygonize( gc , false);
CPLDebug( "OGR_ILI", "Resulting polygons: %d", polys->getNumGeometries());
if (polys->getNumGeometries() != poAreaReferenceLayer->GetFeatureCount())
{
CPLDebug( "OGR_ILI", "Feature count of layer %s: %d", poAreaReferenceLayer->GetLayerDefn()->GetName(), GetFeatureCount());
CPLDebug( "OGR_ILI", "Polygonizing again with crossing line fix");
delete polys;
polys = Polygonize( gc, true ); //try again with crossing line fix
}
delete gc;
//associate polygon feature with data row according to centroid
#if defined(HAVE_GEOS)
int i;
OGRPolygon emptyPoly;
GEOSGeom *ahInGeoms = NULL;
CPLDebug( "OGR_ILI", "Associating layer %s with area polygons", GetLayerDefn()->GetName());
ahInGeoms = (GEOSGeom *) CPLCalloc(sizeof(void*),polys->getNumGeometries());
for( i = 0; i < polys->getNumGeometries(); i++ )
{
ahInGeoms[i] = polys->getGeometryRef(i)->exportToGEOS();
if (!GEOSisValid(ahInGeoms[i])) ahInGeoms[i] = NULL;
}
poAreaReferenceLayer->ResetReading();
while (OGRFeature *feature = poAreaReferenceLayer->GetNextFeatureRef())
{
GEOSGeom point = (GEOSGeom)feature->GetGeometryRef()->exportToGEOS();
for (i = 0; i < polys->getNumGeometries(); i++ )
{
if (ahInGeoms[i] && GEOSWithin(point, ahInGeoms[i]))
{
OGRFeature* areaFeature = feature->Clone();
areaFeature->SetGeometry( polys->getGeometryRef(i) );
AddFeature(areaFeature);
break;
}
}
if (i == polys->getNumGeometries())
{
CPLDebug( "OGR_ILI", "Association between area and point failed.");
feature->SetGeometry( &emptyPoly );
}
GEOSGeom_destroy( point );
}
for( i = 0; i < polys->getNumGeometries(); i++ )
GEOSGeom_destroy( ahInGeoms[i] );
CPLFree( ahInGeoms );
#endif
poAreaReferenceLayer = 0;
poAreaLineLayer = 0;
}
OGRErr OGRBNALayer::CreateFeature( OGRFeature *poFeature )
{
int i,j,k,n;
OGRGeometry *poGeom = poFeature->GetGeometryRef();
char eol[3];
const char* partialEol = (poDS->GetMultiLine()) ? eol : poDS->GetCoordinateSeparator();
if (poGeom == NULL || poGeom->IsEmpty() )
{
CPLError(CE_Failure, CPLE_AppDefined,
"OGR BNA driver cannot write features with empty geometries.");
return OGRERR_FAILURE;
}
if (poDS->GetUseCRLF())
{
eol[0] = 13;
eol[1] = 10;
eol[2] = 0;
}
else
{
eol[0] = 10;
eol[1] = 0;
}
if ( ! bWriter )
{
return OGRERR_FAILURE;
}
if( poFeature->GetFID() == OGRNullFID )
poFeature->SetFID( nFeatures++ );
VSILFILE* fp = poDS->GetOutputFP();
int nbPairPerLine = poDS->GetNbPairPerLine();
switch( poGeom->getGeometryType() )
{
case wkbPoint:
case wkbPoint25D:
{
OGRPoint* point = (OGRPoint*)poGeom;
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "1");
VSIFPrintfL( fp, "%s", partialEol);
WriteCoord(fp, point->getX(), point->getY());
VSIFPrintfL( fp, "%s", eol);
break;
}
case wkbPolygon:
case wkbPolygon25D:
{
OGRPolygon* polygon = (OGRPolygon*)poGeom;
OGRLinearRing* ring = polygon->getExteriorRing();
if (ring == NULL)
{
return OGRERR_FAILURE;
}
double firstX = ring->getX(0);
double firstY = ring->getY(0);
int nBNAPoints = ring->getNumPoints();
int is_ellipse = FALSE;
/* This code tries to detect an ellipse in a polygon geometry */
/* This will only work presumably on ellipses already read from a BNA file */
/* Mostly a BNA to BNA feature... */
if (poDS->GetEllipsesAsEllipses() &&
polygon->getNumInteriorRings() == 0 &&
nBNAPoints == 361)
{
double oppositeX = ring->getX(180);
double oppositeY = ring->getY(180);
double quarterX = ring->getX(90);
double quarterY = ring->getY(90);
double antiquarterX = ring->getX(270);
double antiquarterY = ring->getY(270);
double center1X = 0.5*(firstX + oppositeX);
double center1Y = 0.5*(firstY + oppositeY);
double center2X = 0.5*(quarterX + antiquarterX);
double center2Y = 0.5*(quarterY + antiquarterY);
if (fabs(center1X - center2X) < 1e-5 && fabs(center1Y - center2Y) < 1e-5 &&
fabs(oppositeY - firstY) < 1e-5 &&
fabs(quarterX - antiquarterX) < 1e-5)
{
double major_radius = fabs(firstX - center1X);
double minor_radius = fabs(quarterY - center1Y);
is_ellipse = TRUE;
for(i=0;i<360;i++)
{
if (!(fabs(center1X + major_radius * cos(i * (M_PI / 180)) - ring->getX(i)) < 1e-5 &&
fabs(center1Y + minor_radius * sin(i * (M_PI / 180)) - ring->getY(i)) < 1e-5))
{
is_ellipse = FALSE;
break;
}
}
if ( is_ellipse == TRUE )
{
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "2");
VSIFPrintfL( fp, "%s", partialEol);
WriteCoord(fp, center1X, center1Y);
VSIFPrintfL( fp, "%s", partialEol);
WriteCoord(fp, major_radius, minor_radius);
VSIFPrintfL( fp, "%s", eol);
}
}
}
if ( is_ellipse == FALSE)
{
int nInteriorRings = polygon->getNumInteriorRings();
for(i=0;i<nInteriorRings;i++)
{
nBNAPoints += polygon->getInteriorRing(i)->getNumPoints() + 1;
}
if (nBNAPoints <= 3)
{
CPLError( CE_Failure, CPLE_AppDefined, "Invalid geometry" );
return OGRERR_FAILURE;
}
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "%d", nBNAPoints);
n = ring->getNumPoints();
int nbPair = 0;
for(i=0;i<n;i++)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, ring->getX(i), ring->getY(i));
nbPair++;
}
for(i=0;i<nInteriorRings;i++)
{
ring = polygon->getInteriorRing(i);
n = ring->getNumPoints();
for(j=0;j<n;j++)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, ring->getX(j), ring->getY(j));
nbPair++;
}
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, firstX, firstY);
nbPair++;
}
VSIFPrintfL( fp, "%s", eol);
}
break;
}
case wkbMultiPolygon:
case wkbMultiPolygon25D:
{
OGRMultiPolygon* multipolygon = (OGRMultiPolygon*)poGeom;
int N = multipolygon->getNumGeometries();
int nBNAPoints = 0;
double firstX = 0, firstY = 0;
for(i=0;i<N;i++)
{
OGRPolygon* polygon = (OGRPolygon*)multipolygon->getGeometryRef(i);
OGRLinearRing* ring = polygon->getExteriorRing();
if (ring == NULL)
continue;
if (nBNAPoints)
nBNAPoints ++;
else
{
firstX = ring->getX(0);
firstY = ring->getY(0);
}
nBNAPoints += ring->getNumPoints();
int nInteriorRings = polygon->getNumInteriorRings();
for(j=0;j<nInteriorRings;j++)
{
nBNAPoints += polygon->getInteriorRing(j)->getNumPoints() + 1;
}
}
if (nBNAPoints <= 3)
{
CPLError( CE_Failure, CPLE_AppDefined, "Invalid geometry" );
return OGRERR_FAILURE;
}
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "%d", nBNAPoints);
int nbPair = 0;
for(i=0;i<N;i++)
{
OGRPolygon* polygon = (OGRPolygon*)multipolygon->getGeometryRef(i);
OGRLinearRing* ring = polygon->getExteriorRing();
if (ring == NULL)
continue;
n = ring->getNumPoints();
int nInteriorRings = polygon->getNumInteriorRings();
for(j=0;j<n;j++)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, ring->getX(j), ring->getY(j));
nbPair++;
}
if (i != 0)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, firstX, firstY);
nbPair++;
}
for(j=0;j<nInteriorRings;j++)
{
ring = polygon->getInteriorRing(j);
n = ring->getNumPoints();
for(k=0;k<n;k++)
{
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, ring->getX(k), ring->getY(k));
nbPair++;
}
VSIFPrintfL( fp, "%s", ((nbPair % nbPairPerLine) == 0) ? partialEol : " ");
WriteCoord(fp, firstX, firstY);
nbPair++;
}
}
VSIFPrintfL( fp, "%s", eol);
break;
}
case wkbLineString:
case wkbLineString25D:
{
OGRLineString* line = (OGRLineString*)poGeom;
int n = line->getNumPoints();
int i;
if (n < 2)
{
CPLError( CE_Failure, CPLE_AppDefined, "Invalid geometry" );
return OGRERR_FAILURE;
}
WriteFeatureAttributes(fp, poFeature);
VSIFPrintfL( fp, "-%d", n);
int nbPair = 0;
for(i=0;i<n;i++)
{
VSIFPrintfL( fp, "%s", partialEol);
WriteCoord(fp, line->getX(i), line->getY(i));
nbPair++;
}
VSIFPrintfL( fp, "%s", eol);
break;
}
default:
{
CPLError( CE_Failure, CPLE_AppDefined,
"Unsupported geometry type : %s.",
poGeom->getGeometryName() );
return OGRERR_UNSUPPORTED_GEOMETRY_TYPE;
}
}
return OGRERR_NONE;
}
void
PCLoaderArcView::load(const std::string& file, OptionsCont& oc, PCPolyContainer& toFill,
PCTypeMap&) {
#ifdef HAVE_GDAL
GeoConvHelper& geoConvHelper = GeoConvHelper::getProcessing();
// get defaults
std::string prefix = oc.getString("prefix");
std::string type = oc.getString("type");
RGBColor color = RGBColor::parseColor(oc.getString("color"));
int layer = oc.getInt("layer");
std::string idField = oc.getString("shapefile.id-column");
bool useRunningID = oc.getBool("shapefile.use-running-id");
// start parsing
std::string shpName = file + ".shp";
OGRRegisterAll();
OGRDataSource* poDS = OGRSFDriverRegistrar::Open(shpName.c_str(), FALSE);
if (poDS == NULL) {
throw ProcessError("Could not open shape description '" + shpName + "'.");
}
// begin file parsing
OGRLayer* poLayer = poDS->GetLayer(0);
poLayer->ResetReading();
// build coordinate transformation
OGRSpatialReference* origTransf = poLayer->GetSpatialRef();
OGRSpatialReference destTransf;
// use wgs84 as destination
destTransf.SetWellKnownGeogCS("WGS84");
OGRCoordinateTransformation* poCT = OGRCreateCoordinateTransformation(origTransf, &destTransf);
if (poCT == NULL) {
if (oc.isSet("shapefile.guess-projection")) {
OGRSpatialReference origTransf2;
origTransf2.SetWellKnownGeogCS("WGS84");
poCT = OGRCreateCoordinateTransformation(&origTransf2, &destTransf);
}
if (poCT == 0) {
WRITE_WARNING("Could not create geocoordinates converter; check whether proj.4 is installed.");
}
}
OGRFeature* poFeature;
poLayer->ResetReading();
unsigned int runningID = 0;
while ((poFeature = poLayer->GetNextFeature()) != NULL) {
// read in edge attributes
std::string id = useRunningID ? toString(runningID) : poFeature->GetFieldAsString(idField.c_str());
++runningID;
id = StringUtils::prune(id);
if (id == "") {
throw ProcessError("Missing id under '" + idField + "'");
}
id = prefix + id;
// read in the geometry
OGRGeometry* poGeometry = poFeature->GetGeometryRef();
if (poGeometry == 0) {
OGRFeature::DestroyFeature(poFeature);
continue;
}
// try transform to wgs84
poGeometry->transform(poCT);
OGRwkbGeometryType gtype = poGeometry->getGeometryType();
switch (gtype) {
case wkbPoint: {
OGRPoint* cgeom = (OGRPoint*) poGeometry;
Position pos((SUMOReal) cgeom->getX(), (SUMOReal) cgeom->getY());
if (!geoConvHelper.x2cartesian(pos)) {
WRITE_ERROR("Unable to project coordinates for POI '" + id + "'.");
}
PointOfInterest* poi = new PointOfInterest(id, type, color, pos, (SUMOReal)layer);
if (!toFill.insert(id, poi, layer)) {
WRITE_ERROR("POI '" + id + "' could not be added.");
delete poi;
}
}
break;
case wkbLineString: {
OGRLineString* cgeom = (OGRLineString*) poGeometry;
PositionVector shape;
for (int j = 0; j < cgeom->getNumPoints(); j++) {
Position pos((SUMOReal) cgeom->getX(j), (SUMOReal) cgeom->getY(j));
if (!geoConvHelper.x2cartesian(pos)) {
WRITE_ERROR("Unable to project coordinates for polygon '" + id + "'.");
}
shape.push_back_noDoublePos(pos);
}
Polygon* poly = new Polygon(id, type, color, shape, false, (SUMOReal)layer);
if (!toFill.insert(id, poly, layer)) {
WRITE_ERROR("Polygon '" + id + "' could not be added.");
delete poly;
}
}
break;
case wkbPolygon: {
OGRLinearRing* cgeom = ((OGRPolygon*) poGeometry)->getExteriorRing();
PositionVector shape;
for (int j = 0; j < cgeom->getNumPoints(); j++) {
Position pos((SUMOReal) cgeom->getX(j), (SUMOReal) cgeom->getY(j));
if (!geoConvHelper.x2cartesian(pos)) {
WRITE_ERROR("Unable to project coordinates for polygon '" + id + "'.");
}
shape.push_back_noDoublePos(pos);
}
Polygon* poly = new Polygon(id, type, color, shape, true, (SUMOReal)layer);
if (!toFill.insert(id, poly, layer)) {
WRITE_ERROR("Polygon '" + id + "' could not be added.");
delete poly;
}
}
break;
case wkbMultiPoint: {
OGRMultiPoint* cgeom = (OGRMultiPoint*) poGeometry;
for (int i = 0; i < cgeom->getNumGeometries(); ++i) {
OGRPoint* cgeom2 = (OGRPoint*) cgeom->getGeometryRef(i);
Position pos((SUMOReal) cgeom2->getX(), (SUMOReal) cgeom2->getY());
std::string tid = id + "#" + toString(i);
if (!geoConvHelper.x2cartesian(pos)) {
WRITE_ERROR("Unable to project coordinates for POI '" + tid + "'.");
}
PointOfInterest* poi = new PointOfInterest(tid, type, color, pos, (SUMOReal)layer);
if (!toFill.insert(tid, poi, layer)) {
WRITE_ERROR("POI '" + tid + "' could not be added.");
delete poi;
}
}
}
break;
case wkbMultiLineString: {
OGRMultiLineString* cgeom = (OGRMultiLineString*) poGeometry;
for (int i = 0; i < cgeom->getNumGeometries(); ++i) {
OGRLineString* cgeom2 = (OGRLineString*) cgeom->getGeometryRef(i);
PositionVector shape;
std::string tid = id + "#" + toString(i);
for (int j = 0; j < cgeom2->getNumPoints(); j++) {
Position pos((SUMOReal) cgeom2->getX(j), (SUMOReal) cgeom2->getY(j));
if (!geoConvHelper.x2cartesian(pos)) {
WRITE_ERROR("Unable to project coordinates for polygon '" + tid + "'.");
}
shape.push_back_noDoublePos(pos);
}
Polygon* poly = new Polygon(tid, type, color, shape, false, (SUMOReal)layer);
if (!toFill.insert(tid, poly, layer)) {
WRITE_ERROR("Polygon '" + tid + "' could not be added.");
delete poly;
}
}
}
break;
case wkbMultiPolygon: {
OGRMultiPolygon* cgeom = (OGRMultiPolygon*) poGeometry;
for (int i = 0; i < cgeom->getNumGeometries(); ++i) {
OGRLinearRing* cgeom2 = ((OGRPolygon*) cgeom->getGeometryRef(i))->getExteriorRing();
PositionVector shape;
std::string tid = id + "#" + toString(i);
for (int j = 0; j < cgeom2->getNumPoints(); j++) {
Position pos((SUMOReal) cgeom2->getX(j), (SUMOReal) cgeom2->getY(j));
if (!geoConvHelper.x2cartesian(pos)) {
WRITE_ERROR("Unable to project coordinates for polygon '" + tid + "'.");
}
shape.push_back_noDoublePos(pos);
}
Polygon* poly = new Polygon(tid, type, color, shape, true, (SUMOReal)layer);
if (!toFill.insert(tid, poly, layer)) {
WRITE_ERROR("Polygon '" + tid + "' could not be added.");
delete poly;
}
}
}
break;
default:
WRITE_WARNING("Unsupported shape type occured (id='" + id + "').");
break;
}
OGRFeature::DestroyFeature(poFeature);
}
PROGRESS_DONE_MESSAGE();
#else
WRITE_ERROR("SUMO was compiled without GDAL support.");
#endif
}
static CPLErr OGRPolygonContourWriter( double dfLevelMin, double dfLevelMax,
const OGRMultiPolygon& multipoly,
void *pInfo )
{
OGRContourWriterInfo *poInfo = static_cast<OGRContourWriterInfo *>(pInfo);
OGRFeatureDefnH hFDefn =
OGR_L_GetLayerDefn( static_cast<OGRLayerH>(poInfo->hLayer) );
OGRFeatureH hFeat = OGR_F_Create( hFDefn );
if( poInfo->nIDField != -1 )
OGR_F_SetFieldInteger( hFeat, poInfo->nIDField, poInfo->nNextID++ );
if( poInfo->nElevFieldMin != -1 )
OGR_F_SetFieldDouble( hFeat, poInfo->nElevFieldMin, dfLevelMin );
if( poInfo->nElevFieldMax != -1 )
OGR_F_SetFieldDouble( hFeat, poInfo->nElevFieldMax, dfLevelMax );
const bool bHasZ = wkbHasZ(OGR_FD_GetGeomType(hFDefn));
OGRGeometryH hGeom = OGR_G_CreateGeometry(
bHasZ ? wkbMultiPolygon25D : wkbMultiPolygon );
for ( int iPart = 0; iPart < multipoly.getNumGeometries(); iPart++ )
{
OGRPolygon* poNewPoly = new OGRPolygon();
const OGRPolygon* poPolygon = static_cast<const OGRPolygon*>(multipoly.getGeometryRef(iPart));
for ( int iRing = 0; iRing < poPolygon->getNumInteriorRings() + 1; iRing++ )
{
const OGRLinearRing* poRing = iRing == 0 ?
poPolygon->getExteriorRing()
: poPolygon->getInteriorRing(iRing - 1);
OGRLinearRing* poNewRing = new OGRLinearRing();
for ( int iPoint = 0; iPoint < poRing->getNumPoints(); iPoint++ )
{
const double dfX = poInfo->adfGeoTransform[0]
+ poInfo->adfGeoTransform[1] * poRing->getX(iPoint)
+ poInfo->adfGeoTransform[2] * poRing->getY(iPoint);
const double dfY = poInfo->adfGeoTransform[3]
+ poInfo->adfGeoTransform[4] * poRing->getX(iPoint)
+ poInfo->adfGeoTransform[5] * poRing->getY(iPoint);
if( bHasZ )
OGR_G_SetPoint( OGRGeometry::ToHandle( poNewRing ), iPoint, dfX, dfY, dfLevelMax );
else
OGR_G_SetPoint_2D( OGRGeometry::ToHandle( poNewRing ), iPoint, dfX, dfY );
}
poNewPoly->addRingDirectly( poNewRing );
}
OGR_G_AddGeometryDirectly( hGeom, OGRGeometry::ToHandle( poNewPoly ) );
}
OGR_F_SetGeometryDirectly( hFeat, hGeom );
const OGRErr eErr =
OGR_L_CreateFeature(static_cast<OGRLayerH>(poInfo->hLayer), hFeat);
OGR_F_Destroy( hFeat );
return eErr == OGRERR_NONE ? CE_None : CE_Failure;
}
void OGRILI1Layer::PolygonizeAreaLayer( OGRILI1Layer* poAreaLineLayer, int nAreaFieldIndex, int nPointFieldIndex )
{
//add all lines from poAreaLineLayer to collection
OGRGeometryCollection *gc = new OGRGeometryCollection();
poAreaLineLayer->ResetReading();
while (OGRFeature *feature = poAreaLineLayer->GetNextFeatureRef())
gc->addGeometry(feature->GetGeometryRef());
//polygonize lines
CPLDebug( "OGR_ILI", "Polygonizing layer %s with %d multilines", poAreaLineLayer->GetLayerDefn()->GetName(), gc->getNumGeometries());
poAreaLineLayer = 0;
OGRMultiPolygon* polys = Polygonize( gc , false);
CPLDebug( "OGR_ILI", "Resulting polygons: %d", polys->getNumGeometries());
if (polys->getNumGeometries() != GetFeatureCount())
{
CPLDebug( "OGR_ILI", "Feature count of layer %s: " CPL_FRMT_GIB, GetLayerDefn()->GetName(), GetFeatureCount());
CPLDebug( "OGR_ILI", "Polygonizing again with crossing line fix");
delete polys;
polys = Polygonize( gc, true ); //try again with crossing line fix
CPLDebug( "OGR_ILI", "Resulting polygons: %d", polys->getNumGeometries());
}
delete gc;
//associate polygon feature with data row according to centroid
#if defined(HAVE_GEOS)
int i;
OGRPolygon emptyPoly;
GEOSGeom *ahInGeoms = NULL;
CPLDebug( "OGR_ILI", "Associating layer %s with area polygons", GetLayerDefn()->GetName());
ahInGeoms = (GEOSGeom *) CPLCalloc(sizeof(void*), polys->getNumGeometries());
GEOSContextHandle_t hGEOSCtxt = OGRGeometry::createGEOSContext();
for( i = 0; i < polys->getNumGeometries(); i++ )
{
ahInGeoms[i] = polys->getGeometryRef(i)->exportToGEOS(hGEOSCtxt);
if (!GEOSisValid_r(hGEOSCtxt, ahInGeoms[i])) ahInGeoms[i] = NULL;
}
for ( int nFidx = 0; nFidx < nFeatures; nFidx++)
{
OGRFeature *feature = papoFeatures[nFidx];
OGRGeometry* geomRef = feature->GetGeomFieldRef(nPointFieldIndex);
if( !geomRef )
{
continue;
}
GEOSGeom point = (GEOSGeom)(geomRef->exportToGEOS(hGEOSCtxt));
for (i = 0; i < polys->getNumGeometries(); i++ )
{
if (ahInGeoms[i] && GEOSWithin_r(hGEOSCtxt, point, ahInGeoms[i]))
{
feature->SetGeomField(nAreaFieldIndex, polys->getGeometryRef(i));
break;
}
}
if (i == polys->getNumGeometries())
{
CPLDebug( "OGR_ILI", "Association between area and point failed.");
feature->SetGeometry( &emptyPoly );
}
GEOSGeom_destroy_r( hGEOSCtxt, point );
}
for( i = 0; i < polys->getNumGeometries(); i++ )
GEOSGeom_destroy_r( hGEOSCtxt, ahInGeoms[i] );
CPLFree( ahInGeoms );
OGRGeometry::freeGEOSContext( hGEOSCtxt );
#endif
poAreaLineLayer = 0;
delete polys;
}
void DrawShape::paintMap(WPaintDevice *paintDevice)
{
WPainter painter(paintDevice);
painter.setRenderHint(WPainter::LowQualityShadows);
painter.save();
if(!sfile.empty()) {
vector<LABELS> label_list;
OGRDataSource *poDS,*PointDS;
string dfile = sfile + ".shp";
string shp = "g_4326/" + sfile + ".shp";
poDS = OGRSFDriverRegistrar::Open(shp.c_str(), FALSE ); //comment till here
if(poDS==NULL)
{
printf( "Open failed.\n" );
exit( 1 );
}
OGRLayer *poLayer;
poLayer = poDS->GetLayerByName( sfile.c_str() ); // comment here
OGRFeature *poFeature;
OGREnvelope * psExtent = new OGREnvelope();
poLayer->GetExtent(psExtent);
double xMin = psExtent->MinX;
double yMin = psExtent->MinY;
double xMax = psExtent->MaxX;
double yMax = psExtent->MaxY;
stringstream strm;
strm << xMin;
string exp;
double scaleFactor;
string bound_string = strm.str();
int size = bound_string.size();
size_t found=bound_string.find("+");
if (found!=string::npos) {
exp = bound_string.substr(found+1,size);
}
if(exp.empty()) {
stringstream strExtent;
strExtent << yMin;
bound_string = strExtent.str();
size = bound_string.size();
found = bound_string.find("+");
if(found!=string::npos) {
exp = bound_string.substr(found+1,size);
}
}
if(exp.empty()) {
stringstream strExtent;
strExtent << xMax;
bound_string = strExtent.str();
size = bound_string.size();
found = bound_string.find("+");
if(found!=string::npos) {
exp = bound_string.substr(found+1,size);
}
}
if(exp.empty()) {
stringstream strExtent;
strExtent << yMax;
bound_string = strExtent.str();
size = bound_string.size();
found = bound_string.find("+");
if(found!=string::npos) {
exp = bound_string.substr(found+1,size);
}
}
//cout << "EXXP: " << exp << endl;
if(!exp.empty()) {
int exponent = boost::lexical_cast<int>(exp);
exponent-=3;
scaleFactor = pow (10,exponent);
}
else
{
//cout << "EXXP is empty " << exp << endl;
scaleFactor = 1;
}
xMin/=scaleFactor;
xMax/=scaleFactor;
yMin/=scaleFactor;
yMax/=scaleFactor;
double gWidth = xMax - xMin;
double gHeight = yMax - yMin;
double widthFactor = 1;
double pwidth = abs(gWidth-gHeight);
double s = gWidth - gHeight;
if(s<0.16)
gWidth = gHeight + 0.16;
double ratio=gWidth/gHeight;
//for zoom n pan
if(increase_width<100 && increase_height<100){
painter.setWindow(xMin +(-x_pos_shift+increase_width/2)/100*gWidth* widthFactor, yMax+(y_pos_shift-increase_height/2)/100*gHeight * widthFactor, gWidth* widthFactor*(100-increase_width)/100, gHeight * widthFactor*(-1+increase_height/100));
brush.setStyle(SolidPattern);
brush.setColor(backcolor);
painter.setBrush(brush);
painter.drawRect(xMin +(-x_pos_shift+increase_width/2)/100*gWidth* widthFactor, yMax+(y_pos_shift-increase_height/2)/100*gHeight * widthFactor, gWidth* widthFactor*(100-increase_width)/100, gHeight * widthFactor*(-1+increase_height/100));
}
else{
painter.setWindow(xMin +x_pos_shift, yMax-y_pos_shift, 0, 0);
}
// for normal picture
//painter.setWindow(xMin , yMax, gWidth* widthFactor, -gHeight * widthFactor);
pwidth/=480;
pwidth*=4;
//if(iwidth<0.06)
// iwidth=0.06;
if(iwidth == 0.0015){
pen.setWidth(pwidth);
}
else
{
pen.setWidth(iwidth);
}
//std::cerr<<pwidth<<" "<<iwidth<<"\n";
pen.setColor(bordercolor);
brush.setStyle(SolidPattern);
brush.setColor(fillcolor);
font= new WFont();
font->setSize(WLength(labelpercentage*gWidth*widthFactor));
painter.setFont(*font);
painter.setPen(pen);
painter.setBrush(brush);
WPainterPath path;
poLayer->ResetReading();
OGRPoint *centroid = new OGRPoint();
char label[100];
while( (poFeature = poLayer->GetNextFeature()) != NULL )
{
centroid->empty();
label[0]=0;
if(labelindex>0)
{
OGRFeatureDefn *PointFDefn = poLayer->GetLayerDefn();
OGRFieldDefn *PointFieldDefn = PointFDefn->GetFieldDefn(labelindex-1);
if( PointFieldDefn->GetType() == OFTInteger )
sprintf(label, "%d", poFeature->GetFieldAsInteger(labelindex-1) );
else if( PointFieldDefn->GetType() == OFTReal )
sprintf(label, "%.3f", poFeature->GetFieldAsDouble(labelindex-1) );
else if( PointFieldDefn->GetType() == OFTString )
sprintf(label, "%s", poFeature->GetFieldAsString(labelindex-1) );
else
sprintf(label, "%s", poFeature->GetFieldAsString(labelindex-1) );
}
OGRGeometry *poGeometry;
poGeometry = poFeature->GetGeometryRef();
if( poGeometry != NULL && wkbFlatten(poGeometry->getGeometryType()) == wkbPoint )
{
OGRPoint *poPoint = (OGRPoint *) poGeometry;
double x = poPoint->getX();
double y = poPoint->getY();
//painter.drawPoint(x/scaleFactor,y/scaleFactor);
painter.drawEllipse(x/scaleFactor-0.005*gWidth*widthFactor,y/scaleFactor-0.005*gWidth*widthFactor,0.01*gWidth*widthFactor,0.01*gWidth*widthFactor);
poGeometry->Centroid(centroid);
} //end wkbpoint
else if( poGeometry != NULL && wkbFlatten(poGeometry->getGeometryType()) == wkbLineString )
{
OGRLineString *poPoint = (OGRLineString *) poGeometry;
for(int i=0;i<poPoint->getNumPoints();i++)
{
double x=poPoint->getX(i) ;
double y = poPoint->getY(i);
x/=scaleFactor; y/=scaleFactor;
if(i==0)
path = WPainterPath( WPointF(x, y));
else
path.lineTo( x , y);
}
painter.drawPath(path);
poGeometry->Centroid(centroid);
}
else if( (poGeometry != NULL) && wkbFlatten(poGeometry->getGeometryType()) == wkbPolygon)
{
OGRPolygon *poPoint = (OGRPolygon *) poGeometry;
OGRLinearRing *extring = poPoint->getExteriorRing();
int n = extring->getNumPoints();
double x, y;
for(int i=0;i<n;i++)
{
x = extring->getX(i); y = extring->getY(i);
x/=scaleFactor; y/=scaleFactor;
if(i==0)
path = WPainterPath( WPointF(x , y));
else
path.lineTo( x , y);
}
painter.drawPath(path);
poGeometry->Centroid(centroid);
}
else if( (poGeometry != NULL) && wkbFlatten(poGeometry->getGeometryType()) == wkbMultiPolygon)
{
double x, y;
OGRMultiPolygon *poPoint = (OGRMultiPolygon *) poGeometry;
int p = poPoint->getNumGeometries();
for(int k=0;k<p;k++) {
OGRGeometry* geom = poPoint->getGeometryRef(k);
OGRPolygon *poly = (OGRPolygon *) geom;
OGRLinearRing *ring = poly->getExteriorRing();
for(int i=0;i<ring->getNumPoints();i++)
{
x = ring->getX(i); y = ring->getY(i);
x/=scaleFactor; y/=scaleFactor;
if(i==0)
path = WPainterPath( WPointF(x , y));
else
path.lineTo( x , y);
}
painter.drawPath(path);
poGeometry->Centroid(centroid);
}
}
if(labelindex>0 && !centroid->IsEmpty()){
LABELS l={centroid->getX(),centroid->getY(),label};
label_list.push_back(l);
}
}
painter.restore();
//labelling the contents
if(increase_width<100 && increase_height<100){
painter.setWindow(0.0, 0.0, (paintDevice->width()).value(),(paintDevice->height()).value());
font= new WFont(WFont::SansSerif);
font->setSize(WLength(10*labelpercentage));
painter.setFont(*font);
pen.setColor(labelcolor);
painter.setPen(pen);
std::vector<LABELS>::iterator the_iterator = label_list.begin();
double x, y, minx=(xMin+(-x_pos_shift+increase_width/2)/100*gWidth* widthFactor),miny=(yMax+(y_pos_shift-increase_height/2)/100*gHeight*widthFactor);
double multx=(paintDevice->width().value())/(gWidth* widthFactor*(100-increase_width)/100);
double multy=(paintDevice->height().value())/(gHeight*widthFactor*(-1+increase_height/100));
while( the_iterator != label_list.end() ) {
x=((*the_iterator).x/scaleFactor-minx)*multx;
y=((*the_iterator).y/scaleFactor-miny)*multy;
painter.drawText(WRectF( x-(*the_iterator).label.size()*5*labelpercentage, y-5*labelpercentage, (*the_iterator).label.size() *10*labelpercentage,10*labelpercentage),AlignCenter,(*the_iterator).label);
++the_iterator;
}
pen.setColor(red);
painter.setPen(pen);
painter.setFont(*font);
//painter.drawText(WRectF(paintDevice->width().value()-dfile.size()*10*labelpercentage,paintDevice->height().value()-10*labelpercentage*(paintDevice->height()).value(), dfile.size()*10*labelpercentage,10*labelpercentage ),AlignCenter,dfile); //this text is not seen in the picture when painted.
}
}
}
OGRFeature *OGRGmtLayer::GetNextRawFeature()
{
#if 0
int bMultiVertex =
poFeatureDefn->GetGeomType() != wkbPoint
&& poFeatureDefn->GetGeomType() != wkbUnknown;
#endif
CPLString osFieldData;
OGRGeometry *poGeom = NULL;
/* -------------------------------------------------------------------- */
/* Read lines associated with this feature. */
/* -------------------------------------------------------------------- */
for( ; true; ReadLine() )
{
if( osLine.length() == 0 )
break;
if( osLine[0] == '>' )
{
if( poGeom != NULL
&& wkbFlatten(poGeom->getGeometryType()) == wkbMultiPolygon )
{
OGRMultiPolygon *poMP = (OGRMultiPolygon *) poGeom;
if( ScanAheadForHole() )
{
// Add a hole to the current polygon.
((OGRPolygon *) poMP->getGeometryRef(
poMP->getNumGeometries()-1 ))->
addRingDirectly( new OGRLinearRing() );
}
else if( !NextIsFeature() )
{
OGRPolygon *poPoly = new OGRPolygon();
poPoly->addRingDirectly( new OGRLinearRing() );
poMP->addGeometryDirectly( poPoly );
}
else
break; /* done geometry */
}
else if( poGeom != NULL
&& wkbFlatten(poGeom->getGeometryType()) == wkbPolygon)
{
if( ScanAheadForHole() )
((OGRPolygon *)poGeom)->
addRingDirectly( new OGRLinearRing() );
else
break; /* done geometry */
}
else if( poGeom != NULL
&& (wkbFlatten(poGeom->getGeometryType())
== wkbMultiLineString)
&& !NextIsFeature() )
{
((OGRMultiLineString *) poGeom)->
addGeometryDirectly( new OGRLineString() );
}
else if( poGeom != NULL )
{
break;
}
else if( poFeatureDefn->GetGeomType() == wkbUnknown )
{
poFeatureDefn->SetGeomType( wkbLineString );
/* bMultiVertex = TRUE; */
}
}
else if( osLine[0] == '#' )
{
for( int i = 0;
papszKeyedValues != NULL && papszKeyedValues[i] != NULL;
i++ )
{
if( papszKeyedValues[i][0] == 'D' )
osFieldData = papszKeyedValues[i] + 1;
}
}
else
{
// Parse point line.
double dfX;
double dfY;
double dfZ = 0.0;
const int nDim
= CPLsscanf( osLine, "%lf %lf %lf", &dfX, &dfY, &dfZ );
if( nDim >= 2 )
{
if( poGeom == NULL )
{
switch( poFeatureDefn->GetGeomType() )
{
case wkbLineString:
poGeom = new OGRLineString();
break;
case wkbPolygon:
poGeom = new OGRPolygon();
reinterpret_cast<OGRPolygon *>(poGeom)->addRingDirectly(
new OGRLinearRing() );
break;
case wkbMultiPolygon:
{
OGRPolygon *poPoly = new OGRPolygon();
poPoly->addRingDirectly( new OGRLinearRing() );
poGeom = new OGRMultiPolygon();
reinterpret_cast<OGRMultiPolygon *>(poGeom)->
addGeometryDirectly( poPoly );
}
break;
case wkbMultiPoint:
poGeom = new OGRMultiPoint();
break;
case wkbMultiLineString:
poGeom = new OGRMultiLineString();
reinterpret_cast<OGRMultiLineString *>(poGeom)->
addGeometryDirectly(new OGRLineString() );
break;
case wkbPoint:
case wkbUnknown:
default:
poGeom = new OGRPoint();
break;
}
}
switch( wkbFlatten(poGeom->getGeometryType()) )
{
case wkbPoint:
reinterpret_cast<OGRPoint *>(poGeom)->setX( dfX );
reinterpret_cast<OGRPoint *>(poGeom)->setY( dfY );
if( nDim == 3 )
reinterpret_cast<OGRPoint *>(poGeom)->setZ( dfZ );
break;
case wkbLineString:
if( nDim == 3 )
reinterpret_cast<OGRLineString *>(poGeom)->
addPoint( dfX, dfY, dfZ);
else
reinterpret_cast<OGRLineString *>(poGeom)->
addPoint( dfX, dfY );
break;
case wkbPolygon:
case wkbMultiPolygon:
{
OGRPolygon *poPoly = NULL;
if( wkbFlatten(poGeom->getGeometryType())
== wkbMultiPolygon )
{
OGRMultiPolygon *poMP = (OGRMultiPolygon *) poGeom;
poPoly = (OGRPolygon*) poMP->getGeometryRef(
poMP->getNumGeometries() - 1 );
}
else
poPoly = reinterpret_cast<OGRPolygon *>(poGeom);
OGRLinearRing *poRing = NULL;
if( poPoly->getNumInteriorRings() == 0 )
poRing = poPoly->getExteriorRing();
else
poRing = poPoly->getInteriorRing(
poPoly->getNumInteriorRings()-1 );
if( nDim == 3 )
poRing->addPoint( dfX, dfY, dfZ );
else
poRing->addPoint( dfX, dfY );
}
break;
case wkbMultiLineString:
{
OGRMultiLineString *poML = (OGRMultiLineString *) poGeom;
OGRLineString *poLine = reinterpret_cast<OGRLineString *>(
poML->getGeometryRef( poML->getNumGeometries() -1 ) );
if( nDim == 3 )
poLine->addPoint( dfX, dfY, dfZ );
else
poLine->addPoint( dfX, dfY );
}
break;
default:
CPLAssert( FALSE );
}
}
}
if( poGeom && wkbFlatten(poGeom->getGeometryType()) == wkbPoint )
{
ReadLine();
break;
}
}
if( poGeom == NULL )
return NULL;
/* -------------------------------------------------------------------- */
/* Create feature. */
/* -------------------------------------------------------------------- */
OGRFeature *poFeature = new OGRFeature( poFeatureDefn );
poGeom->assignSpatialReference(poSRS);
poFeature->SetGeometryDirectly( poGeom );
poFeature->SetFID( iNextFID++ );
/* -------------------------------------------------------------------- */
/* Process field values. */
/* -------------------------------------------------------------------- */
char **papszFD = CSLTokenizeStringComplex( osFieldData, "|", TRUE, TRUE );
for( int iField = 0; papszFD != NULL && papszFD[iField] != NULL; iField++ )
{
if( iField >= poFeatureDefn->GetFieldCount() )
break;
poFeature->SetField( iField, papszFD[iField] );
}
CSLDestroy( papszFD );
m_nFeaturesRead++;
return poFeature;
}
