vcglib/apps/sample/trimesh_optional/trimesh_optional.cpp

148 lines
6.2 KiB
C++

/****************************************************************************
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/*! \file trimesh_optional.cpp
\ingroup code_sample
\brief the minimal example of using the \ref optional_component "Optional Components".
This file shows how to dynamically allocate component that you do not need most of the time.
*/
#include<vcg/complex/complex.h>
#include<vcg/complex/algorithms/create/platonic.h>
#include<vcg/complex/algorithms/update/topology.h>
#include<vcg/complex/algorithms/update/flag.h>
#include<vcg/complex/algorithms/update/normal.h>
#include<vcg/complex/algorithms/update/bounding.h>
#include<vcg/complex/algorithms/update/curvature.h>
#include <vcg/complex/algorithms/refine_loop.h>
#include <wrap/io_trimesh/export_off.h>
class MyFace;
class MyVertex;
struct MyUsedTypes: public vcg::UsedTypes<
vcg::Use<MyVertex>::AsVertexType,
vcg::Use<MyFace >::AsFaceType>{};
class MyVertex : public vcg::Vertex< MyUsedTypes,
vcg::vertex::Coord3f, vcg::vertex::Qualityf,
vcg::vertex::Color4b, vcg::vertex::BitFlags,
vcg::vertex::Normal3f, vcg::vertex::VFAdj >{};
class MyFace : public vcg::Face< MyUsedTypes,
vcg::face::FFAdj, vcg::face::VFAdj,
vcg::face::Color4b, vcg::face::VertexRef,
vcg::face::BitFlags, vcg::face::Normal3f > {};
class MyMesh : public vcg::tri::TriMesh< std::vector<MyVertex >, std::vector<MyFace > > {};
class MyVertexOcf;
class MyFaceOcf;
struct MyUsedTypesOcf: public vcg::UsedTypes<
vcg::Use<MyVertexOcf>::AsVertexType,
vcg::Use<MyFaceOcf>::AsFaceType>{};
class MyVertexOcf : public vcg::Vertex< MyUsedTypesOcf,
vcg::vertex::InfoOcf, // <--- Note the use of the 'special' InfoOcf component
vcg::vertex::Coord3f, vcg::vertex::QualityfOcf,
vcg::vertex::Color4b, vcg::vertex::BitFlags,
vcg::vertex::Normal3f, vcg::vertex::VFAdjOcf >{};
class MyFaceOcf : public vcg::Face< MyUsedTypesOcf,
vcg::face::InfoOcf, // <--- Note the use of the 'special' InfoOcf component
vcg::face::FFAdjOcf, vcg::face::VFAdjOcf,
vcg::face::Color4bOcf, vcg::face::VertexRef,
vcg::face::BitFlags, vcg::face::Normal3fOcf > {};
// the mesh class must make use of the 'vector_ocf' containers instead of the classical std::vector
class MyMeshOcf : public vcg::tri::TriMesh< vcg::vertex::vector_ocf<MyVertexOcf>, vcg::face::vector_ocf<MyFaceOcf> > {};
using namespace vcg;
using namespace std;
int main(int , char **)
{
MyMesh cm;
MyMeshOcf cmof;
tri::Tetrahedron(cm);
tri::Tetrahedron(cmof);
printf("Generated mesh has %i vertices and %i triangular faces\n",cm.VN(),cm.FN());
assert(tri::HasFFAdjacency(cmof) == false);
cmof.face.EnableFFAdjacency();
assert(tri::HasFFAdjacency(cmof) == true);
assert(tri::HasVFAdjacency(cmof) == false);
cmof.vert.EnableVFAdjacency();
cmof.face.EnableVFAdjacency();
assert(tri::HasVFAdjacency(cmof) == true);
tri::UpdateTopology<MyMesh >::FaceFace(cm);
tri::UpdateTopology<MyMeshOcf>::FaceFace(cmof);
tri::UpdateFlags<MyMesh >::FaceBorderFromFF(cm);
tri::UpdateFlags<MyMeshOcf>::FaceBorderFromFF(cmof);
tri::UpdateNormal<MyMesh >::PerVertexPerFace(cm);
cmof.face.EnableNormal(); // remove this line and you will throw an exception for a missing 'normal' component
tri::UpdateNormal<MyMeshOcf>::PerVertexPerFace(cmof);
cmof.vert.EnableQuality();
tri::UpdateColor<MyMeshOcf>::PerVertexConstant(cmof,Color4b::LightGray);
printf("cmof IsColorEnabled() %s\n",cmof.face.back().IsColorEnabled()?"Yes":"No");
cmof.face.EnableColor();
tri::UpdateColor<MyMeshOcf>::PerFaceConstant(cmof,Color4b::LightGray);
cmof.vert[0].C()=Color4b::Red;
printf("cmof IsColorEnabled() %s\n",cmof.face.back().IsColorEnabled()?"Yes":"No");
printf("cm IsColorEnabled() %s\n",cm.face.back().IsColorEnabled()?"Yes":"No");
printf("cm IsColorEnabled() %s\n",cm.face.back().HasColor()?"Yes":"No");
printf("Normal of face 0 is %f %f %f\n\n",cm.face[0].N()[0],cm.face[0].N()[1],cm.face[0].N()[2]);
int t0=0,t1=0,t2=0;
while(float(t1-t0)/CLOCKS_PER_SEC < 0.1f)
{
t0=clock();
tri::RefineOddEven<MyMesh> (cm, tri::OddPointLoop<MyMesh>(cm), tri::EvenPointLoop<MyMesh>(), 0);
t1=clock();
tri::RefineOddEven<MyMeshOcf> (cmof, tri::OddPointLoop<MyMeshOcf>(cmof), tri::EvenPointLoop<MyMeshOcf>(), 0);
t2=clock();
}
printf("Last Iteration: Refined a tetra up to a mesh of %i faces in:\n"
"Standard Component %5.2f sec\n"
"OCF Component %5.2f sec\n",cm.FN(),float(t1-t0)/CLOCKS_PER_SEC,float(t2-t1)/CLOCKS_PER_SEC);
tri::io::ExporterOFF<MyMeshOcf>::Save(cmof,"test.off",tri::io::Mask::IOM_VERTCOLOR);
return 0;
}