closest2d.h

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/****************************************************************************
* VCGLib                                                            o o     *
* Visual and Computer Graphics Library                            o     o   *
*                                                                _   O  _   *
* Copyright(C) 2004                                                \/)\/    *
* Visual Computing Lab                                            /\/|      *
* ISTI - Italian National Research Council                           |      *
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* This program is distributed in the hope that it will be useful,           *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
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* for more details.                                                         *
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****************************************************************************/


#ifndef __VCG_TRIMESH_CLOSEST_2D
#define __VCG_TRIMESH_CLOSEST_2D

#include <math.h>
#include <vcg/space/point2.h>
#include <vcg/space/segment2.h>
#include <vcg/space/box2.h>
#include <vcg/simplex/face/distance.h>

namespace vcg {
    namespace tri {

        //**MARKER CLASSES**//
        template <class MESH_TYPE,class OBJ_TYPE>
        class Tmark
        {
            MESH_TYPE *m;
        public:
            Tmark(){}
            Tmark(      MESH_TYPE *m) {SetMesh(m);}
            void UnMarkAll(){ vcg::tri::UnMarkAll(*m);}
            bool IsMarked(OBJ_TYPE* obj){return (vcg::tri::IsMarked(*m,obj));}
            void Mark(OBJ_TYPE* obj){ vcg::tri::Mark(*m,obj);}
            void SetMesh(MESH_TYPE *_m)
            {
              m=_m;
            }
        };

        template <class MESH, class GRID>
            typename MESH::FaceType * GetClosestEdgeBase( MESH & mesh,GRID & gr,const typename GRID::CoordType & _p,
                                                          const typename GRID::ScalarType _maxDist,typename GRID::ScalarType & _minDist,
                                                          typename GRID::CoordType &_closestPt)
        {
            typedef typename GRID::ScalarType ScalarType;
            typedef Point3<ScalarType> Point3x;
            typedef FaceTmark<MESH> MarkerFace;
            MarkerFace mf;
            mf.SetMesh(&mesh);
            vcg::PointSegment2DEPFunctor<ScalarType> PDistFunct;
            _minDist=_maxDist;
            return (gr.GetClosest(PDistFunct,mf,_p,_maxDist,_minDist,_closestPt));
        }

    }    // end namespace tri
}        // end namespace vcg

#endif