本文整理汇总了C++中OGRGeometry::UnionCascaded方法的典型用法代码示例。如果您正苦于以下问题：C++ OGRGeometry::UnionCascaded方法的具体用法？C++ OGRGeometry::UnionCascaded怎么用？C++ OGRGeometry::UnionCascaded使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类OGRGeometry的用法示例。
在下文中一共展示了OGRGeometry::UnionCascaded方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: run
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);
}