Esempi in C++ (Cpp) per OGRGeometry::UnionCascaded

Esempio n. 1

File: gdalmergefaces.cpp Progetto: iut-ibk/DynaMind-ToolBox

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);
	}