C++ (Cpp) PointList::swap Examples

Example #1

File: ShadowVolumeOccluder.cpp Project: BlitzMaxModules/osg.mod

// clip the convex hull 'in' to planeList to generate a clipped convex hull 'out'
// return true if points remain after clipping.
unsigned int clip(const Polytope::PlaneList& planeList,const VertexList& vin,PointList& out)
{
    PointList in;
    copyVertexListToPointList(vin,in);
    
    unsigned int planeMask = 0x1;
    for(Polytope::PlaneList::const_iterator itr=planeList.begin();
        itr!=planeList.end();
        ++itr)
    {
        if (!clip(*itr,in,out,planeMask)) return false;
        in.swap(out);
        planeMask <<= 1;
    }

    in.swap(out);

    return out.size();
}