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#include <vector>
#include <vcg/simplex/vertex/base.h>
#include <vcg/simplex/vertex/component_ocf.h>
#include <vcg/simplex/face/base.h>
#include <vcg/simplex/face/component_ocf.h>
#include <vcg/complex/complex.h>
#include <vcg/complex/algorithms/attribute_seam.h>
#include <wrap/io_trimesh/import_ply.h>
#include <wrap/io_trimesh/export_ply.h>
/*
this sample shows how to transfer per wedge attributes from wedges to vertices.
during the process new vertices could be created.
*/
using namespace vcg;
#define TEST_IN_PLACE_SPLIT
#ifdef TEST_IN_PLACE_SPLIT
class SrcVertex;
class SrcFace;
struct ScrUsedTypes : public UsedTypes< Use<SrcVertex>::AsVertexType,
Use<SrcFace>::AsFaceType>{};
class SrcVertex : public vcg::Vertex
< ScrUsedTypes,
vcg::vertex::InfoOcf,
vcg::vertex::Coord3f,
vcg::vertex::TexCoordfOcf,
vcg::vertex::BitFlags
> { };
class SrcFace : public vcg::Face
< ScrUsedTypes,
vcg::face::InfoOcf,
vcg::face::VertexRef,
vcg::face::WedgeTexCoordfOcf
> { };
class SrcMesh : public vcg::tri::TriMesh <vcg::vertex::vector_ocf<SrcVertex>, vcg::face::vector_ocf<SrcFace> > { };
typedef SrcVertex DstVertex;
typedef SrcFace DstFace;
typedef SrcMesh DstMesh;
#else
// source mesh type: per-wedge texture coordinates
class SrcVertex;
class SrcFace;
struct SrcUsedTypes : public UsedTypes< Use<SrcVertex>::AsVertexType,
Use<SrcFace>::AsFaceType>{};
class SrcVertex : public vcg::Vertex <SrcUsedTypes, vcg::vertex::Coord3f, vcg::vertex::TexCoord2f, vcg::vertex::BitFlags> { };
class SrcFace : public vcg::Face <SrcUsedTypes, vcg::face::VertexRef, vcg::face::WedgeTexCoord2f> { };
class SrcMesh : public vcg::tri::TriMesh <std::vector<SrcVertex>, std::vector<SrcFace> > { };
// destination mesh type: per-vertex texture coordinates
class DstVertex;
class DstFace;
struct DstUsedTypes : public UsedTypes< Use<SrcVertex>::AsVertexType,
Use<SrcFace>::AsFaceType>{};
class DstVertex : public vcg::Vertex <DstUsedTypes, vcg::vertex::Coord3f, vcg::vertex::TexCoord2f, vcg::vertex::BitFlags> { };
class DstFace : public vcg::Face <DstUsedTypes, vcg::face::VertexRef> { };
class DstMesh : public vcg::tri::TriMesh <std::vector<DstVertex>, std::vector<DstFace> > { };
#endif
// extract wedge attributes functor.
// given a source face and a wedge index, this functor extracts all the relevant attributes from the wedge
// and transfer them to the destination vertex.
// source and destination meshes are provided to allow for attribute presence checking (.Is*Enabled()).
inline void ExtractVertex(const SrcMesh & srcMesh, const SrcFace & f, int whichWedge, const DstMesh & dstMesh, DstVertex & v)
{
(void)srcMesh;
(void)dstMesh;
v.P() = f.cP(whichWedge);
v.T() = f.cWT(whichWedge);
}
// sample compare functor.
// given two destination vertices, this functor tells if they are identical in all relevan attributes.
// source and destination meshes are provided to allow for attribute presence checking (.Is*Enabled()).
inline bool CompareVertex(const DstMesh & m, const DstVertex & vA, const DstVertex & vB)
{
(void)m;
return (vA.cT() == vB.cT());
}
// sample copy functor.
// given two destination vertices, this functor is asked to copy all relevan attributes.
// source and destination meshes are provided to allow for attribute presence checking (.Is*Enabled()).
inline void CopyVertex(const DstMesh & m, const DstVertex & vSrc, DstVertex & vDst)
{
(void)m;
vDst.P() = vSrc.cP();
vDst.T() = vSrc.cT();
}
void usage(void)
{
printf("usage : trimesh_split_vertex <src_ply_file_name> <dst_ply_file_name>\n");
printf("where : <src_ply_file_name> : source PLY trimesh file name with texture coordinates per wedge\n");
printf(" <dst_ply_file_name> : destination PLY trimesh file name with texture coordinates per vertex\n");
printf("exit.\n");
}
int main(int argc, char ** argv)
{
if (argc != 3)
{
usage();
return -1;
}
SrcMesh srcMesh;
#ifdef TEST_IN_PLACE_SPLIT
srcMesh.face.EnableWedgeTex();
#endif
vcg::tri::io::ImporterPLY<SrcMesh>::Open(srcMesh, argv[1]);
if ((srcMesh.vn <= 0) || (srcMesh.fn <= 0))
{
printf("invalid source mesh file.\n");
return -1;
}
const int srcVN = srcMesh.vn;
const int srcFN = srcMesh.fn;
printf("source mesh succesfully loaded.\n");
#ifdef TEST_IN_PLACE_SPLIT
DstMesh & dstMesh = srcMesh;
dstMesh.vert.EnableTexCoord();
vcg::tri::AttributeSeam::SplitVertex(dstMesh, ExtractVertex, CompareVertex);
#else
DstMesh dstMesh;
vcg::tri::AttributeSeam::SplitVertex(srcMesh, dstMesh, ExtractVertex, CompareVertex, CopyVertex);
dstMesh.textures = srcMesh.textures;
#endif
if (vcg::tri::io::ExporterPLY<DstMesh>::Save(dstMesh, argv[2], vcg::tri::io::Mask::IOM_VERTCOORD | vcg::tri::io::Mask::IOM_VERTTEXCOORD) != 0)
{
printf("cannot save destination mesh file.\n");
return -1;
}
printf("destination mesh succesfully saved.\n");
const int dstVN = dstMesh.vn;
const int dstFN = dstMesh.fn;
printf("\n");
printf("statistics:\n");
printf(" input mesh vertices count : %d\n", srcVN);
printf(" input mesh faces count : %d\n", srcFN);
printf(" splitted mesh vertices count : %d\n", dstVN);
printf(" splitted mesh faces count : %d\n", dstFN);
printf("\n");
return 0;
}
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