void PlaneExt::ConcaveHullJoinCurrent(pcl::PointCloud<pcl::PointXYZ>::Ptr &plane_hull, tVertices &polygon_indices)
{
// Join new polygon with current
ClipperLib::ExPolygons newPoly = PolygonizeConcaveHull(plane_hull, polygon_indices);
ClipperLib::Clipper clipper;
// insert all existing polygons
for (unsigned int i = 0; i < planePolygonsClipper.size(); ++i)
clipper.AddPolygon(planePolygonsClipper[i].outer, ClipperLib::ptSubject);
// insert all new polygons
for (unsigned int i = 0; i < newPoly.size(); ++i)
clipper.AddPolygon(newPoly[i].outer, ClipperLib::ptClip);
// execute join operation
clipper.Execute(ClipperLib::ctUnion, planePolygonsClipper);
}
void PolyMesh::chopPoly(const Polygon & rect, int pid,ClipperLib::ClipType ct)
{
ClipperLib::Clipper c;
c.AddPolygon(poly[pid][0],ClipperLib::ptSubject);
c.AddPolygon(rect,ClipperLib::ptClip);
Polygons solution;
bool ret = c.Execute(ct,solution);
if(solution.size()<1) {
std::cout<<"ret "<<ret<<" "<<pid<<" is completely clipped\n";
} else {
std::cout<<"plane "<<pid<<"\n";
std::cout<<"soln size "<<solution.size()<<"\n";
size_t maxsize=solution[0].size();
int maxidx=0;
for(size_t jj=1; jj<solution.size(); jj++) {
if(solution[jj].size()>maxsize) {
maxsize=solution[jj].size();
maxidx=jj;
}
}
poly[pid][0]=solution[maxidx];
}
}