329 lines
12 KiB
C++
329 lines
12 KiB
C++
/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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#ifndef __VCGLIB_APPEND
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#define __VCGLIB_APPEND
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#include <vcg/complex/allocate.h>
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#include <vcg/complex/algorithms/update/flag.h>
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namespace vcg {
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namespace tri {
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template<class MeshLeft, class MeshRight>
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class Append
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{
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public:
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typedef typename MeshLeft::ScalarType ScalarLeft;
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typedef typename MeshLeft::CoordType CoordLeft;
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typedef typename MeshLeft::VertexType VertexLeft;
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typedef typename MeshLeft::EdgeType EdgeLeft;
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typedef typename MeshLeft::FaceType FaceLeft;
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typedef typename MeshLeft::HEdgeType HEdgeLeft;
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typedef typename MeshLeft::VertexPointer VertexPointerLeft;
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typedef typename MeshLeft::VertexIterator VertexIteratorLeft;
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typedef typename MeshLeft::EdgeIterator EdgeIteratorLeft;
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typedef typename MeshLeft::HEdgeIterator HEdgeIteratorLeft;
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typedef typename MeshLeft::FaceIterator FaceIteratorLeft;
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typedef typename MeshRight::ScalarType ScalarRight;
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typedef typename MeshRight::CoordType CoordRight;
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typedef typename MeshRight::VertexType VertexRight;
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typedef typename MeshRight::EdgeType EdgeRight;
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typedef typename MeshRight::HEdgeType HEdgeRight;
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typedef typename MeshRight::FaceType FaceRight;
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typedef typename MeshRight::VertexPointer VertexPointerRight;
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typedef typename MeshRight::VertexIterator VertexIteratorRight;
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typedef typename MeshRight::EdgeIterator EdgeIteratorRight;
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typedef typename MeshRight::HEdgeIterator HEdgeIteratorRight;
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typedef typename MeshRight::FaceIterator FaceIteratorRight;
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typedef typename MeshRight::FacePointer FacePointerRight;
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struct Remap{
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std::vector<int> vert,face,edge, hedge;
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};
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static void ImportVertexAdj(MeshLeft &ml, MeshRight &mr, VertexLeft &vl, VertexRight &vr, Remap &remap, bool sel ){
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// Vertex to Edge Adj
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if(vcg::tri::HasVEAdjacency(ml) && vcg::tri::HasVEAdjacency(mr)){
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size_t i = Index(mr,vr.cVEp());
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vl.VEp() = (i>ml.edge.size())? 0 : &ml.edge[remap.edge[i]];
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vl.VEi() = vr.VEi();
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}
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if(!sel){
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// Vertex to Face Adj
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if(vcg::tri::HasPerVertexVFAdjacency(ml) && vcg::tri::HasPerVertexVFAdjacency(mr) &&
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vcg::tri::HasPerFaceVFAdjacency(ml) && vcg::tri::HasPerFaceVFAdjacency(mr)
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){
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size_t i = Index(mr,vr.cVFp());
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vl.VFp() = (i>ml.face.size())? 0 :&ml.face[remap.face[i]];
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vl.VFi() = vr.VFi();
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}
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// Vertex to HEdge Adj
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if(vcg::tri::HasVHAdjacency(ml) && vcg::tri::HasVHAdjacency(mr)){
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vl.VHp() = &ml.hedge[remap.hedge[Index(mr,vr.cVHp())]];
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vl.VHi() = vr.VHi();
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}
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}
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}
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static void ImportEdgeAdj(MeshLeft &ml, MeshRight &mr, EdgeLeft &el, const EdgeRight &er, Remap &remap, bool sel ){
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// Edge to Vertex Adj
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if(vcg::tri::HasEVAdjacency(ml) && vcg::tri::HasEVAdjacency(mr)){
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el.EVp(0) = &ml.vert[remap.vert[Index(mr,er.cEVp(0))]];
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el.EVp(1) = &ml.vert[remap.vert[Index(mr,er.cEVp(1))]];
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}
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if(!sel){
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// Edge to Edge Adj
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if(vcg::tri::HasEEAdjacency(ml) && vcg::tri::HasEEAdjacency(mr))
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for(unsigned int vi = 0; vi < 2; ++vi)
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{
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size_t i = Index(mr,er.cEEp(vi));
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el.EEp(i) = (i>ml.edge.size())? 0 : &ml.edge[remap.edge[i]];
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el.EEi(i) = er.cEEi(i);
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}
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// Edge to Face Adj
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if(vcg::tri::HasEFAdjacency(ml) && vcg::tri::HasEFAdjacency(mr)){
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size_t i = Index(mr,er.cEFp());
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el.EFp() = (i>ml.face.size())? 0 :&ml.face[remap.face[i]];
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el.EFi() = er.cEFi();
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}
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// Edge to HEdge Adj
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if(vcg::tri::HasEHAdjacency(ml) && vcg::tri::HasEHAdjacency(mr))
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el.EHp() = &ml.hedge[remap.hedge[Index(mr,er.cEHp())]];
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}
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}
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static void ImportFaceAdj(MeshLeft &ml, MeshRight &mr, FaceLeft &fl, const FaceRight &fr, Remap &remap, bool sel ){
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// Face to Vertex Adj
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if(vcg::tri::HasFVAdjacency(ml) && vcg::tri::HasFVAdjacency(mr)){
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assert(fl.VN() == fr.VN());
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for( int i = 0; i < fl.VN(); ++i )
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fl.V(i) = &ml.vert[remap.vert[Index(mr,fr.V(i))]];
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}
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if(!sel){
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// Face to Edge Adj
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if(vcg::tri::HasFEAdjacency(ml) && vcg::tri::HasFEAdjacency(mr)){
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assert(fl.VN() == fr.VN());
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for( int vi = 0; vi < fl.VN(); ++vi ){
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size_t i = Index(mr,fr.cFEp(vi));
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fl.FEp(i) = (i>ml.edge.size())? 0 : &ml.edge[remap.edge[i]];
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}
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}
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// Face to Face Adj
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if(vcg::tri::HasFFAdjacency(ml) && vcg::tri::HasFFAdjacency(mr)){
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assert(fl.VN() == fr.VN());
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for( int vi = 0; vi < fl.VN(); ++vi ){
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size_t i = Index(mr,fr.cFFp(vi));
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fl.FFp(vi) = (i>ml.face.size()) ? 0 :&ml.face[remap.face[i]];
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fl.FFi(vi) = fr.cFFi(vi);
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}
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}
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// Face to HEedge Adj
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if(vcg::tri::HasFHAdjacency(ml) && vcg::tri::HasFHAdjacency(mr))
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fl.FHp() = &ml.hedge[remap.hedge[Index(mr,fr.cFHp())]];
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}
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}
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static void ImportHEdgeAdj(MeshLeft &ml, MeshRight &mr, HEdgeLeft &hl, const HEdgeRight &hr, Remap &remap, bool /*sel*/ ){
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// HEdge to Vertex Adj
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if(vcg::tri::HasHVAdjacency(ml) && vcg::tri::HasHVAdjacency(mr))
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hl.HVp() = &ml.vert[remap.vert[Index(mr,hr.cHVp())]];
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// HEdge to Edge Adj
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if(vcg::tri::HasHEAdjacency(ml) && vcg::tri::HasHEAdjacency(mr)){
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size_t i = Index(mr,hr.cHEp()) ;
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hl.HEp() = (i>ml.edge.size())? 0 : &ml.edge[remap.edge[i]];
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}
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// HEdge to Face Adj
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if(vcg::tri::HasHFAdjacency(ml) && vcg::tri::HasHFAdjacency(mr)){
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size_t i = Index(mr,hr.cHFp());
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hl.HFp() = (i>ml.face.size())? 0 :&ml.face[remap.face[i]];
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}
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// HEdge to Opposite HEdge Adj
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if(vcg::tri::HasHOppAdjacency(ml) && vcg::tri::HasHOppAdjacency(mr))
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hl.HOp() = &ml.hedge[remap.hedge[Index(mr,hr.cHOp())]];
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// HEdge to Next HEdge Adj
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if(vcg::tri::HasHNextAdjacency(ml) && vcg::tri::HasHNextAdjacency(mr))
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hl.HNp() = &ml.hedge[remap.hedge[Index(mr,hr.cHNp())]];
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// HEdge to Next HEdge Adj
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if(vcg::tri::HasHPrevAdjacency(ml) && vcg::tri::HasHPrevAdjacency(mr))
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hl.HPp() = &ml.hedge[remap.hedge[Index(mr,hr.cHPp())]];
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}
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// Append Right Mesh to the Left Mesh
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// Append::Mesh(ml, mr) is equivalent to ml += mr.
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// Note MeshRigth could be costant...
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static void Mesh(MeshLeft& ml, MeshRight& mr, const bool selected = false){
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// phase 1. allocate on ml vert,edge,face, hedge to accomodat those of mr
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// and build the remapping for all
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Remap remap;
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// vertex
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remap.vert.resize(mr.vert.size(),-1);
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VertexIteratorRight vi;
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for(vi=mr.vert.begin();vi!=mr.vert.end();++vi)
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if(!(*vi).IsD() && (!selected || (*vi).IsS())){
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int ind=Index(mr,*vi);
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assert(remap.vert[ind]==-1);
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VertexIteratorLeft vp;
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vp=Allocator<MeshLeft>::AddVertices(ml,1);
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(*vp).ImportData(*(vi));
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remap.vert[ind]=Index(ml,*vp);
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}
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// edge
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remap.edge.resize(mr.edge.size(),-1);
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EdgeIteratorRight ei;
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for(ei=mr.edge.begin(); ei!=mr.edge.end();++ei)
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if(!(*ei).IsD() && (!selected || (*ei).IsS())){
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int ind=Index(mr,*ei);
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assert(remap.edge[ind]==-1);
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EdgeIteratorLeft ep;
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ep=Allocator<MeshLeft>::AddEdges(ml,1);
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(*ep).ImportData(*(ei));
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remap.edge[ind]=Index(ml,*ep);
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}
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// face
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vcg::tri::Allocator<MeshRight>::CompactFaceVector(mr);
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remap.face.resize(mr.face.size(),-1);
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FaceIteratorRight fi;
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for(fi=mr.face.begin();fi!=mr.face.end();++fi)
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if(!(*fi).IsD() && (!selected || (*fi).IsS())){
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int ind=Index(mr,*fi);
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assert(remap.face[ind]==-1);
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FaceIteratorLeft fp;
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fp=Allocator<MeshLeft>::AddFaces(ml,1);
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(*fp).ImportData(*(fi));
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remap.face[ind]=Index(ml,*fp);
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}
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// hedge
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remap.hedge.resize(mr.hedge.size(),-1);
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HEdgeIteratorRight hi;
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for(hi=mr.hedge.begin();hi!=mr.hedge.end();++hi)
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if(!(*hi).IsD() && (!selected || (*hi).IsS())){
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int ind=Index(mr,*hi);
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assert(remap.hedge[ind]==-1);
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HEdgeIteratorLeft hp;
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hp=Allocator<MeshLeft>::AddHEdges(ml,1);
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(*hp).ImportData(*(hi));
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remap.hedge[ind]=Index(ml,*hp);
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}
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// phase 2.
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// copy data from ml to its corresponding elements in ml and adjacencies
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// vertex
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for(vi=mr.vert.begin();vi!=mr.vert.end();++vi)
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if( !(*vi).IsD() && (!selected || (*vi).IsS())){
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ml.vert[remap.vert[Index(mr,*vi)]].ImportData(*vi);
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ImportVertexAdj(ml,mr,ml.vert[remap.vert[Index(mr,*vi)]],*vi,remap,selected);
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}
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// edge
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for(ei=mr.edge.begin();ei!=mr.edge.end();++ei)
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if(!(*ei).IsD() && (!selected || (*ei).IsS())){
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ml.edge[remap.edge[Index(mr,*ei)]].ImportData(*ei);
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ImportEdgeAdj(ml,mr,ml.edge[remap.edge[Index(mr,*ei)]],*ei,remap,selected);
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}
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// face
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bool wedgetexcoord = vcg::tri::HasPerWedgeTexCoord(mr);
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for(fi=mr.face.begin();fi!=mr.face.end();++fi)
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if(!(*fi).IsD() && (!selected || (*fi).IsS())){
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if(wedgetexcoord)
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for(int i = 0; i < (*fi).VN(); ++i)
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(*fi).WT(i).n() += ml.textures.size();
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ml.face[remap.face[Index(mr,*fi)]].ImportData(*fi);
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ImportFaceAdj(ml,mr,ml.face[remap.face[Index(mr,*fi)]],*fi,remap,selected);
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}
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// hedge
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for(hi=mr.hedge.begin();hi!=mr.hedge.end();++hi)
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if(!(*hi).IsD() && (!selected || (*hi).IsS())){
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ml.hedge[remap.hedge[Index(mr,*hi)]].ImportData(*hi);
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ImportHEdgeAdj(ml,mr,ml.hedge[remap.hedge[Index(mr,*hi)]],*hi,remap,selected);
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}
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// phase 3.
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// take care of other per mesh data: textures, attributes
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// At the end concatenate the vector with texture names.
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ml.textures.insert(ml.textures.end(),mr.textures.begin(),mr.textures.end());
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// Attributes. Copy only those attributes that are present in both meshes
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// Two attributes in different meshes are considered the same if they have the same
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// name and the same type. This may be deceiving because they could in fact have
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// different semantic, but this is up to the developer.
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// If the left mesh has attributes that are not in the right mesh, their values for the elements
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// of the right mesh will be uninitialized
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// to be done.
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// note: we need to assign attribute values without knowing their type
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}
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static void Selected(MeshLeft& ml, MeshRight& mr)
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{
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Mesh(ml,mr,true);
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}
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}; // end of class Append
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} // End Namespace TriMesh
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} // End Namespace vcg
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#endif
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