geos::geom::Polygon* GeoJSONReader::getPolygon(Handle<Value> coords) {
if (coords->IsArray()) {
Handle<Array> array = Handle<Array>::Cast(coords);
if (array->Length() == 0)
throw "The number of the linear rings must be >= 1";
geos::geom::LinearRing* shell = getLinearRing(array->Get(0));
uint32_t length = array->Length();
std::vector<geos::geom::Geometry*>* holes = new std::vector<geos::geom::Geometry*>();
try {
for (uint32_t i = 1; i < length; i++) {
geos::geom::LinearRing* g = getLinearRing(array->Get(i));
holes->push_back(g);
}
}
catch (...) {
delete shell;
unsigned size = holes->size();
for (unsigned int i = 0; i < size; i++)
delete (*holes)[i];
delete holes;
throw;
}
return geometryFactory->createPolygon(shell, holes);
}
return geometryFactory->createPolygon();
}
/*public*/
Polygon*
EdgeRing::toPolygon(const GeometryFactory* geometryFactory)
{
testInvariant();
size_t nholes=holes.size();
vector<Geometry *> *holeLR=new vector<Geometry *>(nholes);
for (size_t i=0; i<nholes; ++i)
{
Geometry *hole=holes[i]->getLinearRing()->clone();
(*holeLR)[i]=hole;
}
// We don't use "clone" here because
// GeometryFactory::createPolygon really
// wants a LinearRing
//
LinearRing *shellLR=new LinearRing(*(getLinearRing()));
return geometryFactory->createPolygon(shellLR, holeLR);
}
