trimesh_isosurface.cpp

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* Visual and Computer Graphics Library                            o     o   *
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* Copyright(C) 2004-2012                                           \/)\/    *
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#include <vcg/complex/complex.h>
#include <vcg/math/perlin_noise.h>
#include <vcg/complex/algorithms/create/marching_cubes.h>
#include <vcg/complex/algorithms/create/extended_marching_cubes.h>
#include <vcg/complex/algorithms/create/mc_trivial_walker.h>
#include <wrap/io_trimesh/export_ply.h>

using namespace std;
using namespace vcg;

typedef float ScalarType;

class MyFace;
class MyVertex;

struct MyUsedTypes : public UsedTypes<  Use<MyVertex>           ::AsVertexType,
                                                                                Use<MyFace>                     ::AsFaceType>{};

class MyVertex     : public Vertex< MyUsedTypes, vertex::Coord3f, vertex::Normal3f, vertex::BitFlags>{};
class MyFace       : public Face< MyUsedTypes, face::VertexRef, face::BitFlags> {};

class MyMesh            : public vcg::tri::TriMesh< std::vector< MyVertex>, std::vector< MyFace > > {};



typedef SimpleVolume<SimpleVoxel<float> > MyVolume;

int main(int /*argc*/ , char **/*argv*/)
{
    MyVolume    volume;

  typedef vcg::tri::TrivialWalker<MyMesh,MyVolume>      MyWalker;
  typedef vcg::tri::MarchingCubes<MyMesh, MyWalker>     MyMarchingCubes;
  MyWalker walker;


  // Simple initialization of the volume with some cool perlin noise
  vcg::Box3f bb(vcg::Point3f(-1,-1,-1),vcg::Point3f(1,1,1));
  volume.Init(Point3i(64,64,64),bb);
  for(int i=0;i<64;i++)
    for(int j=0;j<64;j++)
      for(int k=0;k<64;k++)
        volume.Val(i,j,k)=(j-32)*(j-32)+(k-32)*(k-32)  + i*10*(float)math::Perlin::Noise(i*.2,j*.2,k*.2);


        // MARCHING CUBES
        MyMesh          mc_mesh;
        printf("[MARCHING CUBES] Building mesh...");
        MyMarchingCubes                                 mc(mc_mesh, walker);
        walker.BuildMesh<MyMarchingCubes>(mc_mesh, volume, mc, 20*20);
        vcg::tri::io::ExporterPLY<MyMesh>::Save( mc_mesh, "marching_cubes.ply");

        printf("OK!\n");
};