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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 | *
* \ *
* All rights reserved. *
* *
* 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 *
* the Free Software Foundation; either version 2 of the License, or *
* (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. *
* *
****************************************************************************/
#include <vector>
#include <stdio.h>
#include <vcg/simplex/vertex/base.h>
#include <vcg/simplex/face/base.h>
#include <vcg/simplex/edge/base.h>
#include <vcg/complex/complex.h>
#include <vcg/complex/algorithms/create/zonohedron.h>
#include <vcg/complex/algorithms/polygon_support.h>
#include <wrap/io_trimesh/export_off.h>
class MyVertex;
class MyEdge;
class MyFace;
struct MyUsedTypes: public vcg::UsedTypes<vcg::Use<MyVertex>::AsVertexType,vcg::Use<MyEdge>::AsEdgeType,vcg::Use<MyFace>::AsFaceType>{};
class MyVertex : public vcg::Vertex< MyUsedTypes,vcg::vertex::Coord3f,vcg::vertex::BitFlags >{};
class MyEdge : public vcg::Edge< MyUsedTypes > {};
class MyFace : public vcg::Face< MyUsedTypes,
vcg::face::FFAdj,
vcg::face::VertexRef,
vcg::face::Normal3f,
vcg::face::BitFlags > {};
// the main mesh class
class MyMesh : public vcg::tri::TriMesh<std::vector<MyVertex>, std::vector<MyFace> > {};
// example 1: build a cube as a Zonohedron
void example1(){
vcg::tri::Zonohedron<float> z;
z.addVector( 0,0,1 );
z.addVector( 0,1,0 );
z.addVector( 1,0,0 );
MyMesh m;
z.createMesh(m); // this will be a cube
vcg::tri::UpdateTopology<MyMesh>::FaceFace(m); // needed by exporter
int savemask = vcg::tri::io::Mask::IOM_BITPOLYGONAL;
vcg::tri::io::ExporterOFF<MyMesh>::Save(m,"cube.off",savemask);
}
// example2: reads input file, builds zonohedra as described there
void example2(){
FILE* f = fopen("input.txt","rt");
if (!f) return;
while (1) {
// read mesh name
char meshFilename[1024], fullMeshFilename[1024];
if (fscanf(f,"%s",meshFilename)!=1) break;
sprintf(fullMeshFilename,"%s.off",meshFilename);
// build input vector
vcg::tri::Zonohedron<float> z;
while (1) {
float a,b,c;
if (fscanf(f,"%f %f %f",&a, &b, &c)!=3) break;
z.addVector(a,b,c);
}
printf("Building %s from %d vectors...\n",fullMeshFilename, z.vectors().size() );
MyMesh m;
z.createMesh(m);
vcg::tri::UpdateTopology<MyMesh>::FaceFace(m); // needed by exporter
// normally, faces with more than 4sides are split into parallelograms
// this merges them (optional, try removing it!)
vcg::tri::PolygonSupport<MyMesh,int>::MergeFlatFaces(m);
int savemask = vcg::tri::io::Mask::IOM_BITPOLYGONAL;
vcg::tri::io::ExporterOFF<MyMesh>::Save(m,fullMeshFilename,savemask);
}
}
int main(int argc, char *argv[]){
example1();
example2();
return 0;
}
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