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Rev 586 Rev 587
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        VertexAttributeVector<int> vmap(m.allocated_vertices());
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        VertexAttributeVector<int> vmap(m.allocated_vertices());
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        int k = 0;
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        int k = 0;
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        for(VertexIDIterator v = m.vertices_begin(); v != m.vertices_end(); ++v){
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        for(VertexIDIterator v = m.vertices_begin(); v != m.vertices_end(); ++v){
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            Vec3f p = m.pos(*v);
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            Vec3d p = m.pos(*v);
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            os << p[0] << " " << p[1] << " " << p[2] << "\n";
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            os << p[0] << " " << p[1] << " " << p[2] << "\n";
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            vmap[*v] = k++;
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            vmap[*v] = k++;
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        }
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        }
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        os << "\"/>" << "\n";
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        os << "\"/>" << "\n";
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        os << "<IndexedFaceSet coordIndex=\"" << endl;
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        os << "<IndexedFaceSet coordIndex=\"" << endl;
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        for(FaceIDIterator f =  m.faces_begin(); f != m.faces_end(); ++f){
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        for(FaceIDIterator f =  m.faces_begin(); f != m.faces_end(); ++f){
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            vector<int> verts;
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            vector<int> verts;
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            for(HalfEdgeWalker w = m.halfedgewalker(*f); !w.full_circle(); w = w.circulate_face_ccw()){
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            for(Walker w = m.walker(*f); !w.full_circle(); w = w.circulate_face_ccw()){
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                int idx = vmap[w.vertex()];
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                int idx = vmap[w.vertex()];
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                assert(static_cast<size_t>(idx) < m.no_vertices());
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                assert(static_cast<size_t>(idx) < m.no_vertices());
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                verts.push_back(idx);
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                verts.push_back(idx);
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            }
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            }
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            //assert(verts.size()==3);
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            //assert(verts.size()==3);