boundary.h

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$Log: not supported by cvs2svn $
Revision 1.1  2007/07/31 12:31:34  ganovelli
added


****************************************************************************/
#ifndef __VCG_TETRA_TRI_CONVERTER
#define __VCG_TETRA_TRI_CONVERTER
#include <map>
#include <vector>
#include <vcg/space/tetra3.h>
#include <vcg/complex/tetramesh/allocate.h>
namespace vcg {

class Boundary{
public:

template <class TetraContainer, class TriangleMeshType>
static void OfTetramesh(TetraContainer &tetra,TriangleMeshType &trim)
{
typedef typename TetraContainer::iterator TetraIterator;
typedef typename TetraContainer::value_type TetraVertexType;
typedef typename TriangleMeshType::FaceType FaceType;
typedef typename TriangleMeshType::VertexType TriangleVertexType;

TetraIterator ti;
TetraVertexType *v0;
TetraVertexType *v2;

trim.Clear();
for (ti=tetra.begin();ti<tetra.end();ti++)
{
if (!(ti->IsD()))
        {
                if ((ti->IsBorderF(0))||(ti->IsBorderF(1))||(ti->IsBorderF(2))||(ti->IsBorderF(3)))
                        for (int i=0;i<4;i++)
                                if (ti->IsBorderF(i))
                                        {
                                                FaceType f=FaceType();
                                                f.ClearFlags();
                                                f.V(0)=(TriangleVertexType*)ti->V(Tetra::VofF(i,0));
                                                f.V(1)=(TriangleVertexType*)ti->V(Tetra::VofF(i,1));
                                                f.V(2)=(TriangleVertexType*)ti->V(Tetra::VofF(i,2));
                                                trim.face.push_back(f);
                                        }
                }
        }
}

template <class TriVertexType >
struct InsertedV{

typedef typename TriVertexType::FaceType FaceType;
InsertedV( TriVertexType *_v, FaceType* _f,int _z):v(_v),f(_f),z(_z){}

TriVertexType *v;
FaceType* f;
int z;

const bool operator <(const InsertedV & o){
return (v<o.v);
}
const bool operator ==(const InsertedV & o){
return (v==o.v);
}
const bool operator !=(const InsertedV & o){
return (v!=o.v);
}
};


template <class TetraContainer, class TriangleMeshType>
static void OfTetrameshCopy(TetraContainer &tetra,TriangleMeshType &trim)
{
        typedef typename TetraContainer::iterator TetraIterator;
        typedef typename TetraContainer::value_type::VertexType TetraVertexType;
        typedef typename TriangleMeshType::FaceType FaceType;
        typedef typename TriangleMeshType::FaceIterator FaceIterator;
        typedef typename TriangleMeshType::VertexIterator TriVertexIterator;
        typedef typename TriangleMeshType::VertexType TriVertexType;

        vector<InsertedV<TriVertexType> > newVertices;
        typename vector<InsertedV<TriVertexType> >::iterator curr,next;
        TriVertexIterator vi;
        vector<TriVertexType*> redirect;

        OfTetramesh(tetra,trim);

        FaceIterator fi;

        for(fi = trim.face.begin(); fi != trim.face.end(); ++fi){
                newVertices.push_back(InsertedV<TriVertexType>( (*fi).V(0),&(*fi),0));
                newVertices.push_back(InsertedV<TriVertexType>( (*fi).V(1),&(*fi),1));
                newVertices.push_back(InsertedV<TriVertexType>( (*fi).V(2),&(*fi),2));
        }

sort(newVertices.begin(),newVertices.end());


int pos = 0;
curr = next = newVertices.begin();
while( next != newVertices.end()){
        if((*curr)!=(*next))
                pos++;
        (*next).f->V( (*next).z) = (TriVertexType*)pos;
        curr = next;
        next++;
}

typename vector<InsertedV<TriVertexType> >::iterator newE = unique(newVertices.begin(),newVertices.end());
for(curr = newVertices.begin();curr!= newE;++curr)
        trim.vert.push_back(*((*curr).v));

for(vi = trim.vert.begin(); vi != trim.vert.end(); ++vi)
        redirect.push_back(&(*vi));

for(fi = trim.face.begin(); fi != trim.face.end(); ++fi){
        (*fi).V(0) = redirect[(int)(*fi).V(0)];
        (*fi).V(1) = redirect[(int)(*fi).V(1)];
        (*fi).V(2) = redirect[(int)(*fi).V(2)];
        }
trim.vn = trim.vert.size();
trim.fn = trim.face.size();
}

};// End class
} // End namespace


#endif

---

vcglib
Author(s): Christian Bersch
autogenerated on Fri Jan 11 09:16:41 2013