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vcglib/apps/ptx2ply/ptx2ply.cpp

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#include <stdio.h>
#include <vector>
#include<vcg/math/base.h>
#include<vcg/space/point3.h>
#include<vcg/space/point4.h>
#include<vcg/space/color4.h>
#include<vcg/math/matrix44.h>
#include <vcg/simplex/vertexplus/base.h>
#include <vcg/simplex/vertexplus/component.h>
#include <vcg/simplex/faceplus/base.h>
#include <vcg/simplex/faceplus/component.h>
#include <vcg/simplex/faceplus/component_rt.h>
#include<vcg/complex/trimesh/base.h>
#include<vcg/complex/trimesh/create/platonic.h>
#include<vcg/complex/trimesh/update/flag.h>
#include<vcg/complex/trimesh/update/normal.h>
#include<vcg/complex/trimesh/update/color.h>
#include<vcg/complex/trimesh/clean.h>
#include<wrap/io_trimesh/import_ply.h>
#include<wrap/io_trimesh/export_ply.h>
using namespace vcg;
class MyEdge;
class MyFaceC;
class MyFace;
class MyVertexC : public VertexSimp2<MyVertexC,MyEdge,MyFaceC,vert::Coord3f,vert::Color4b,vert::Qualityf,vert::Normal3f,vert::BitFlags> {};
class MyFaceC : public FaceSimp2< MyVertexC,MyEdge,MyFaceC,face::VertexRef, face::Normal3f,face::BitFlags> {};
class MyMeshC : public tri::TriMesh< std::vector<MyVertexC>, std::vector<MyFaceC> > {};
class MyVertex : public VertexSimp2<MyVertex,MyEdge,MyFace,vert::Coord3f,vert::Normal3f,vert::BitFlags> {};
class MyFace : public FaceSimp2< MyVertex,MyEdge,MyFace,face::VertexRef, face::Normal3f,face::BitFlags> {};
class MyMesh : public tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> > {};
using namespace std;
using namespace tri;
/*
class MyEdge;
class MyFace;
class MyEdgeC;
class MyFaceC;
class MyVertexC:public VertexVCVN<float,MyEdgeC,MyFace>{};
class MyFaceC :public FaceFN<MyVertexC,MyEdgeC,MyFaceC>{};
class MyMeshC: public tri::TriMesh< std::vector<MyVertexC>, std::vector<MyFaceC > >{};
class MyVertex:public VertexVN<float,MyEdge,MyFace>{};
class MyFace :public FaceFN<MyVertex,MyEdge,MyFace>{};
class MyMesh: public tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace > >{};
*/
//-------------------------------------------------------
int nummeshes; // number of meshes extracted so far
MyMesh currentmesh; // current mesh, read from stream and saved one completed
MyMeshC currentmeshC; // current mesh, read from stream and saved one completed
Matrix44f currtrasf;
float angle; // angle treshold for face deletion
int singlemap; // single map mode, which map is to be saved. if -1 then all map are saved
int frommap; // skip all maps BEFORE this index
int tomap; // skip all maps AFTER this index
bool savecolor; // if has color, save it on 3dmesh
bool hascolor; // true if the current mesh has color
bool saveall; // all elements are keeped (even invalids)
bool flipfaces; // flip all faces
int todump;
bool dumpit;
bool unpack;
bool onlypoints; // store only points
bool switchside; // inverse triangulation order (swaping row->cols)
// read the current mesh from the stream
int readmesh(FILE* fp)
{
int colnum;
int rownum;
int trinum;
int numtokens;
int rit,cit;
char linebuf[256];
int ii;
float xx,yy,zz; // position
float rr,gg,bb; // color
float rf; // reflectance
MyMesh::FaceIterator fi;
MyMesh::VertexIterator vi;
MyMeshC::FaceIterator fiC;
MyMeshC::VertexIterator viC;
// cleaning mesh
currentmesh.Clear();
currentmeshC.Clear();
// getting mesh size;
fscanf(fp,"%i\n",&colnum);
fscanf(fp,"%i\n",&rownum);
// initial 4 lines [still don't know what is this :) :)]
fscanf(fp,"%f %f %f\n", &xx, &yy, &zz);
fscanf(fp,"%f %f %f\n", &xx, &yy, &zz);
fscanf(fp,"%f %f %f\n", &xx, &yy, &zz);
fscanf(fp,"%f %f %f\n", &xx, &yy, &zz);
// now the transformation matrix
fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(0,0)), &(currtrasf.ElementAt(0,1)), &(currtrasf.ElementAt(0,2)), &(currtrasf.ElementAt(0,3)));
fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(1,0)), &(currtrasf.ElementAt(1,1)), &(currtrasf.ElementAt(1,2)), &(currtrasf.ElementAt(1,3)));
fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(2,0)), &(currtrasf.ElementAt(2,1)), &(currtrasf.ElementAt(2,2)), &(currtrasf.ElementAt(2,3)));
fscanf(fp,"%f %f %f %f\n", &(currtrasf.ElementAt(3,0)), &(currtrasf.ElementAt(3,1)), &(currtrasf.ElementAt(3,2)), &(currtrasf.ElementAt(3,3)));
// now the real data begins
// first line, we should know if the format is
// XX YY ZZ RF
// or it is
// XX YY ZZ RF RR GG BB
// read the entire first line and then count the spaces. it's rude but it works :)
ii=0;
fread(&(linebuf[ii++]),1,1,fp);
while(linebuf[ii-1] != '\n')
fread(&(linebuf[ii++]),1,1,fp);
linebuf[ii-1] = '\0'; // terminate the string
numtokens=1;
for(ii=0; ii<strlen(linebuf); ii++)
{
if(linebuf[ii] == ' ')
numtokens++;
}
if(numtokens == 4)
hascolor = false;
else if(numtokens == 7)
hascolor = true;
else
return -1;
// allocate all points
printf("\n %i x %i \n", rownum, colnum);
printf(" expect V %i F %i",(rownum*colnum),((rownum-1)*(colnum-1)*2));
if(hascolor && savecolor)
{
viC = Allocator<MyMeshC>::AddVertices(currentmeshC,(rownum*colnum));
}
else
{
vi = Allocator<MyMesh>::AddVertices(currentmesh,(rownum*colnum));
}
// parse the first line....
if(hascolor)
{
printf("\n hascolor ");
sscanf(linebuf,"%f %f %f %f %f %f %f", &xx, &yy, &zz, &rf, &rr, &gg, &bb);
}
else
{
printf("\n no color ");
sscanf(linebuf,"%f %f %f %f", &xx, &yy, &zz, &rf);
}
//addthefirstpoint
if(hascolor && savecolor)
{
(*viC).P()[0]=xx;
(*viC).P()[1]=yy;
(*viC).P()[2]=zz;
(*viC).Q()=rf;
(*viC).C()[0]=rr;
(*viC).C()[1]=gg;
(*viC).C()[2]=bb;
viC++;
}
else
{
(*vi).P()[0]=xx;
(*vi).P()[1]=yy;
(*vi).P()[2]=zz;
vi++;
}
// now for each line until end of mesh (row*col)-1
for(ii=0; ii<((rownum*colnum)-1); ii++)
{
// read the stream
if(hascolor)
fscanf(fp,"%f %f %f %f %f %f %f", &xx, &yy, &zz, &rf, &rr, &gg, &bb);
else
fscanf(fp,"%f %f %f %f", &xx, &yy, &zz, &rf);
// add the point
if(hascolor && savecolor)
{
(*viC).P()[0]=xx;
(*viC).P()[1]=yy;
(*viC).P()[2]=zz;
(*viC).Q()=rf;
(*viC).C()[0]=rr;
(*viC).C()[1]=gg;
(*viC).C()[2]=bb;
viC++;
}
else
{
(*vi).P()[0]=xx;
(*vi).P()[1]=yy;
(*vi).P()[2]=zz;
vi++;
}
}
currentmesh.vn = currentmesh.vert.size();
if(! onlypoints)
{
// now i can triangulate
trinum = (rownum-1) * (colnum-1) * 2;
if(hascolor && savecolor)
{
fiC= Allocator<MyMeshC>::AddFaces(currentmeshC,trinum);
}
else
{
fi= Allocator<MyMesh>::AddFaces(currentmesh,trinum);
}
currentmesh.fn = 0;
currentmeshC.fn = 0;
int v0i,v1i,v2i;
for(rit=0; rit<rownum-1; rit++)
for(cit=0; cit<colnum-1; cit++)
if(hascolor && savecolor)
{
if(!switchside)
{
v0i = (rit ) + ((cit ) * rownum);
v1i = (rit+1) + ((cit ) * rownum);
v2i = (rit ) + ((cit+1) * rownum);
}
else
{
v0i = (cit ) + ((rit ) * colnum);
v1i = (cit+1) + ((rit ) * colnum);
v2i = (cit ) + ((rit+1) * colnum);
}
// upper tri
(*fiC).V(2) = &(currentmeshC.vert[v0i]);
(*fiC).V(1) = &(currentmeshC.vert[v1i]);
(*fiC).V(0) = &(currentmeshC.vert[v2i]);
if(flipfaces)
{
(*fiC).V(2) = &(currentmeshC.vert[v1i]);
(*fiC).V(1) = &(currentmeshC.vert[v0i]);
}
currentmeshC.fn++;
fiC++;
if(!switchside)
{
v0i = (rit+1) + ((cit ) * rownum);
v1i = (rit+1) + ((cit+1) * rownum);
v2i = (rit ) + ((cit+1) * rownum);
}
else
{
v0i = (cit+1) + ((rit ) * colnum);
v1i = (cit+1) + ((rit+1) * colnum);
v2i = (cit ) + ((rit+1) * colnum);
}
// lower tri
(*fiC).V(2) = &(currentmeshC.vert[v0i]);
(*fiC).V(1) = &(currentmeshC.vert[v1i]);
(*fiC).V(0) = &(currentmeshC.vert[v2i]);
if(flipfaces)
{
(*fiC).V(2) = &(currentmeshC.vert[v1i]);
(*fiC).V(1) = &(currentmeshC.vert[v0i]);
}
currentmeshC.fn++;
fiC++;
}
else
{
// upper tri
if(!switchside)
{
v0i = (rit ) + ((cit ) * rownum);
v1i = (rit+1) + ((cit ) * rownum);
v2i = (rit ) + ((cit+1) * rownum);
}
else
{
v0i = (cit ) + ((rit ) * colnum);
v1i = (cit+1) + ((rit ) * colnum);
v2i = (cit ) + ((rit+1) * colnum);
}
(*fi).V(2) = &(currentmesh.vert[v0i]);
(*fi).V(1) = &(currentmesh.vert[v1i]);
(*fi).V(0) = &(currentmesh.vert[v2i]);
if(flipfaces)
{
(*fi).V(2) = &(currentmesh.vert[v1i]);
(*fi).V(1) = &(currentmesh.vert[v0i]);
}
currentmesh.fn++;
fi++;
// lower tri
if(!switchside)
{
v0i = (rit+1) + ((cit ) * rownum);
v1i = (rit+1) + ((cit+1) * rownum);
v2i = (rit ) + ((cit+1) * rownum);
}
else
{
v0i = (cit+1) + ((rit ) * colnum);
v1i = (cit+1) + ((rit+1) * colnum);
v2i = (cit ) + ((rit+1) * colnum);
}
(*fi).V(2) = &(currentmesh.vert[v0i]);
(*fi).V(1) = &(currentmesh.vert[v1i]);
(*fi).V(0) = &(currentmesh.vert[v2i]);
if(flipfaces)
{
(*fi).V(2) = &(currentmesh.vert[v1i]);
(*fi).V(1) = &(currentmesh.vert[v0i]);
}
currentmesh.fn++;
fi++;
}
if(hascolor && savecolor)
printf("\nV: %8i F: %8i \n", currentmeshC.vn, currentmeshC.fn);
else
printf("\nV: %8i F: %8i \n", currentmesh.vn, currentmesh.fn);
}
if(! saveall)
{
printf("deleting unsampled points \n");
// now i delete all points in (0,0,0) that are unsampled points
if(hascolor && savecolor)
for(viC = currentmeshC.vert.begin(); viC != currentmeshC.vert.end(); viC++)
{
if((*viC).P() == Point3f(0.0, 0.0, 0.0))
{
(*viC).SetD();
currentmeshC.vn--;
}
}
else
for(vi = currentmesh.vert.begin(); vi != currentmesh.vert.end(); vi++)
{
if((*vi).P() == Point3f(0.0, 0.0, 0.0))
{
(*vi).SetD();
currentmesh.vn--;
}
}
}
if(! onlypoints)
{
if(! saveall)
{
printf("deleting invalid faces \n");
// and then i delete all faces with null vertices
if(hascolor && savecolor)
for(fiC = currentmeshC.face.begin(); fiC != currentmeshC.face.end(); fiC++)
{
if( ((*fiC).V(0)->IsD()) || ((*fiC).V(1)->IsD()) || ((*fiC).V(2)->IsD()) )
{
(*fiC).SetD();
currentmeshC.fn--;
}
}
else
for(fi = currentmesh.face.begin(); fi != currentmesh.face.end(); fi++)
{
if( ((*fi).V(0)->IsD()) || ((*fi).V(1)->IsD()) || ((*fi).V(2)->IsD()) )
{
(*fi).SetD();
currentmesh.fn--;
}
}
}
if(hascolor && savecolor)
printf("V: %8i F: %8i \n", currentmeshC.vn, currentmeshC.fn);
else
printf("V: %8i F: %8i \n", currentmesh.vn, currentmesh.fn);
// eliminate high angle triangles
if((angle != 90)&&(!saveall))
{
printf(" culling by angle \n");
float limit = cos( angle*3.14159265358979323846/180.0 );
Point3f raggio;
if(hascolor && savecolor)
{
tri::UpdateNormals<MyMeshC>::PerFaceNormalized(currentmeshC);
for(fiC = currentmeshC.face.begin(); fiC != currentmeshC.face.end(); fiC++)
if(!(*fiC).IsD())
{
raggio = -((*fiC).V(0)->P() + (*fiC).V(1)->P() + (*fiC).V(2)->P()) / 3.0;
raggio.Normalize();
if(((*fiC).N() * raggio) < limit)
{
(*fiC).SetD();
currentmeshC.fn--;
}
}
}
else
{
vcg::tri::UpdateNormals<MyMesh>::PerFaceNormalized(currentmesh);
for(fi = currentmesh.face.begin(); fi != currentmesh.face.end(); fi++)
if(!(*fi).IsD())
{
raggio = -((*fi).V(0)->P() + (*fi).V(1)->P() + (*fi).V(2)->P()) / 3.0;
raggio.Normalize();
if((raggio * (*fi).N()) < limit)
{
(*fi).SetD();
currentmesh.fn--;
}
}
}
}
}
Transpose(currtrasf);
// apply tranformation
if(hascolor && savecolor)
{
for(viC = currentmeshC.vert.begin(); viC != currentmeshC.vert.end(); viC++)
if(!(*viC).IsD())
{
(*viC).P() = currtrasf * (*viC).P();
}
}
else
{
for(vi = currentmesh.vert.begin(); vi != currentmesh.vert.end(); vi++)
if(!(*vi).IsD())
{
(*vi).P() = currtrasf * (*vi).P();
}
}
if(hascolor && savecolor)
{
int dup = tri::Clean<MyMeshC>::RemoveDuplicateVertex(currentmeshC);
if(! onlypoints)
int unref = tri::Clean<MyMeshC>::RemoveUnreferencedVertex(currentmeshC);
}
else
{
int dup = tri::Clean<MyMesh>::RemoveDuplicateVertex(currentmesh);
if(! onlypoints)
int unref = tri::Clean<MyMesh>::RemoveUnreferencedVertex(currentmesh);
}
return 0;
}
// save each mesh in a separate file
void dounpack(FILE* fp)
{
FILE* outf;
char namef[128];
int rnum;
char linebuf[256];
int ii;
bool trovato;
rnum=1;
trovato = false;
// search for the first integer
while(!trovato)
{
// read the entire first line and then count the spaces. it's rude but it works :)
ii=0;
fread(&(linebuf[ii++]),1,1,fp);
while(linebuf[ii-1] != '\n')
fread(&(linebuf[ii++]),1,1,fp);
linebuf[ii-1] = '\0'; // terminate the string
//check the string
if(strchr(linebuf,' ') == NULL)
trovato = true;
}
while(!feof(fp))
{
sprintf(namef,"range%03i.ptx",rnum++);
outf = fopen(namef,"w");
// write first integer
fprintf(outf,"%s\n",linebuf);
// read and write next int
ii=0;
fread(&(linebuf[ii++]),1,1,fp);
while(linebuf[ii-1] != '\n')
fread(&(linebuf[ii++]),1,1,fp);
linebuf[ii-1] = '\0'; // terminate the string
fprintf(outf,"%s\n",linebuf);
// search for the next integer
while(!trovato)
{
// read the entire first line and then count the spaces. it's rude but it works :)
ii=0;
fread(&(linebuf[ii++]),1,1,fp);
while(linebuf[ii-1] != '\n')
fread(&(linebuf[ii++]),1,1,fp);
linebuf[ii-1] = '\0'; // terminate the string
//if not an integer then write it, otherwise close and remember for next step
if(strchr(linebuf,' ') == NULL)
trovato = true;
else
fprintf(outf,"%s\n",linebuf);
}
fclose(outf);
}
}
// skip a mesh
int skipmesh(FILE* fp)
{
int colnum;
int rownum;
int skiplines;
char linebuf;
if(feof(fp))
return -1;
// getting mesh size;
fscanf(fp,"%i\n",&colnum);
fscanf(fp,"%i\n",&rownum);
printf("\n %i x %i \n", rownum, colnum);
printf(" expect V %i F %i\n",(rownum*colnum),((rownum-1)*(colnum-1)*2));
if(feof(fp))
return -1;
skiplines = (colnum * rownum) + 8; // have to skip (col * row) lines plus 8 lines for the header
for(int ii=0; ii<skiplines; ii++)
{
fread(&linebuf,1,1,fp);
while(linebuf != '\n')
fread(&linebuf,1,1,fp);
}
return 0;
}
void parseparams(int argn, char** argvect)
{
int pit;
for(pit = 2; pit<argn; pit++)
{
if(argvect[pit][0] != '-') // invalid param
{
printf("invalid parameter\n");
}
else // valid param
{
if(argvect[pit][1] == 'a') // angle
{
angle = atof(&(argvect[pit][2]));
printf("cutoff angle = %f \n",angle);
}
if(argvect[pit][1] == 'm') // single map
{
singlemap = atoi(&(argvect[pit][2]));
frommap = 0;
tomap = singlemap;
printf("single map # %i \n",singlemap);
}
if(argvect[pit][1] == 'f') // from map
{
frommap = atoi(&(argvect[pit][2]));
singlemap = -1;
printf("start from map # %i \n",frommap);
}
if(argvect[pit][1] == 't') // from map
{
tomap = atoi(&(argvect[pit][2]));
singlemap = -1;
printf("end with map # %i \n",tomap);
}
if(argvect[pit][1] == 'd') // dump to file
{
todump = atoi(&(argvect[pit][2]));
dumpit = true;
printf("dumping # %i chars\n",todump);
}
if(argvect[pit][1] == 'u') // unpack the file in different
{
unpack = true;
printf("UNPACKING \n");
}
if(argvect[pit][1] == 'c') // save color if present
{
savecolor = true;
printf("saving color \n");
}
if(argvect[pit][1] == 'k') // keep all
{
saveall = true;
printf("keeping all elements \n");
}
if(argvect[pit][1] == 'f') // flip all tris
{
flipfaces = true;
printf("keeping all elements \n");
}
if(argvect[pit][1] == 'p') // points only, do not triangulate
{
onlypoints = true;
printf("points only, do not triangulate \n");
}
if(argvect[pit][1] == 'r') // points only, do not triangulate
{
switchside = true;
printf("swapped triangulation \n");
}
}
}
}
void printhelp()
{
printf("-------------------------------------------------------------\n");
printf("multiple PLY files will be extracted from the PTX \n");
printf("\n");
printf("USAGE: ptx2ply filename.ptx [options]");
printf("\n");
printf("each map contained in the file will be saved in a PLY \n");
printf("\n");
printf("-aAA angle threshold for face elimination, glazing faces with\n");
printf(" angle between normal and viewdirection > AA are removed \n");
printf(" default is no cut. \n");
printf(" beware! this only works for range maps that still need \n");
printf(" to be tranformed in the final reference system \n");
printf(" (in this case the viewpoint is the origin) \n");
printf("\n");
printf("-c save color if present \n");
printf("\n");
printf("-mNN extract just the map NN, skip all the rest of the file \n");
printf("\n");
printf("-fNN extract maps starting FROM index NN \n");
printf("\n");
printf("-tNN extract maps UP TO index NN \n");
printf("\n");
printf("-u unpack the file generating a ptx for each map \n");
printf("\n");
printf("-k keep all elements (no points/tris discarded) \n");
printf(" only useful for debug \n");
printf("\n");
printf("-f flip all faces \n");
printf("\n");
printf("-p store points only \n");
printf("\n");
printf("-r during triangulation, swap rows->columns \n");
printf("\n");
printf("MESH INDICES STARTS FROM 1 \n");
printf("parameters -f and -t can be used together to specify an index\n");
printf("range to be processed. \n");
printf("-------------------------------------------------------------\n");
exit(0);
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
int main(int argc, char *argv[])
{
FILE *fp;
char filename[256];
char modelname[128];
//---------------------------------------------------------------
printf("PTX to PLY conversion\n");
//---------------------------------------------------------------
//-- init params
nummeshes = 1;
currentmesh.Clear();
angle = 90.0;
singlemap = -1;
frommap = 0;
tomap = 99999;
todump = 1024;
dumpit = false;
unpack = false;
savecolor = false;
saveall = false;
flipfaces = false;
onlypoints = false;
switchside = false;
if(argc < 2)
printhelp();
//--
parseparams(argc, argv);
strcpy(modelname,argv[1]);
modelname[strlen(argv[1])-4] = '\0';
fp = fopen(argv[1],"r");
if(unpack)
dounpack(fp);
while((!feof(fp)) && (nummeshes <= tomap))
{
printf("mesh %3i ",nummeshes);
if((nummeshes >= frommap) && (nummeshes <= tomap) && ((singlemap == -1) || (singlemap == nummeshes)))
{
if(dumpit)
{
FILE* outf;
char cbuf;
outf = fopen("dump.txt","w");
for(int dit=0; dit<todump; dit++)
{
fread(&cbuf,1,1,fp);
fwrite(&cbuf,1,1,outf);
}
fclose(outf);
fclose(fp);
exit(0);
}
printf("reading ");
readmesh(fp);
sprintf(filename,"%s_%03i.ply",modelname,nummeshes);
if(!feof(fp))
{
if(hascolor && savecolor)
{
int plyMask=tri::io::Mask::IOM_VERTCOLOR | tri::io::Mask::IOM_VERTQUALITY;
tri::io::ExporterPLY<MyMeshC>::Save(currentmeshC,filename, plyMask);
}
else
tri::io::ExporterPLY<MyMesh>::Save(currentmesh,filename);
}
printf("ok! \n");
}
else
{
printf("skipping ");
skipmesh(fp);
printf("ok! \n");
}
nummeshes++;
}
fclose(fp);
return 0;
}
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