vcglib/apps/sample/trimesh_remeshing/trimesh_remeshing.cpp

98 lines
4.3 KiB
C++

/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2012 \/)\/ *
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* ISTI - Italian National Research Council | *
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* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
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* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
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****************************************************************************/
/*! \file trimesh_normal.cpp
\ingroup code_sample
\brief An example of all the methods for computing normals over a mesh.
*/
#include<vcg/complex/complex.h>
#include<wrap/io_trimesh/import.h>
#include<wrap/io_trimesh/export.h>
#include<vcg/complex/algorithms/clean.h>
#include<vcg/complex/algorithms/isotropic_remeshing.h>
using namespace vcg;
using namespace std;
class MyEdge;
class MyFace;
class MyVertex;
struct MyUsedTypes : public UsedTypes< Use<MyVertex> ::AsVertexType,
Use<MyEdge> ::AsEdgeType,
Use<MyFace> ::AsFaceType>{};
class MyVertex : public Vertex<MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::VFAdj, vertex::Qualityf, vertex::BitFlags >{};
class MyFace : public Face< MyUsedTypes, face::Mark, face::VertexRef, face::VFAdj, face::FFAdj, face::Normal3f, face::BitFlags > {};
class MyEdge : public Edge<MyUsedTypes>{};
class MyMesh : public tri::TriMesh< vector<MyVertex>, vector<MyFace> , vector<MyEdge> > {};
int main( int argc, char **argv )
{
MyMesh original,toremesh;
if(argc<2)
{
printf("Usage: trimesh_remesh <filename> [targetLen [iterNum] ]");
exit(0);
}
if(tri::io::Importer<MyMesh>::Open(original,argv[1])!=0)
{
printf("Error reading file %s\n",argv[1]);
exit(0);
}
float targetLenPerc=.2f;
int iterNum=20;
if(argc>=3) targetLenPerc = atof(argv[2]);
if(argc>=4) iterNum = atoi(argv[3]);
// Mesh cleaning
tri::Clean<MyMesh>::RemoveDuplicateVertex(original);
tri::Clean<MyMesh>::RemoveUnreferencedVertex(original);
Allocator<MyMesh>::CompactEveryVector(original);
tri::UpdateNormal<MyMesh>::PerVertexNormalizedPerFaceNormalized(original);
tri::UpdateBounding<MyMesh>::Box(original);
vcg::tri::Append<MyMesh,MyMesh>::MeshCopy(toremesh,original);
tri::UpdateNormal<MyMesh>::PerVertexNormalizedPerFaceNormalized(toremesh);
tri::UpdateBounding<MyMesh>::Box(toremesh);
tri::UpdateTopology<MyMesh>::FaceFace(toremesh);
tri::MeshAssert<MyMesh>::FFTwoManifoldEdge(toremesh);
float lengthThr = targetLenPerc*(original.bbox.Diag()/100.f);
printf("Length Thr: %8.3f ~ %4.2f %% on %5.3f\n",lengthThr,targetLenPerc,original.bbox.Diag());
IsotropicRemeshing<MyMesh>::Params params;
params.SetTargetLen(lengthThr);
params.SetFeatureAngleDeg(10);
params.iter=iterNum;
printf(" Input mesh %8i v %8i f\n",toremesh.VN(),toremesh.FN());
IsotropicRemeshing<MyMesh>::Do(toremesh, original, params);
vcg::tri::io::ExporterPLY<MyMesh>::Save(toremesh, "remesh.ply");
printf("Output mesh %8i v %8i f\n",toremesh.VN(),toremesh.FN());
return 0;
}