bool read_objfile(NonDestructiveTriMesh &mesh, std::vector<Vec3d> &x, const char *filename_format, ...)
{
#ifdef _MSC_VER
va_list ap;
va_start(ap, filename_format);
int len=_vscprintf(filename_format, ap) // _vscprintf doesn't count
+1; // terminating '\0'
char *filename=new char[len];
vsprintf(filename, filename_format, ap);
std::ifstream input(filename, std::ifstream::binary);
delete[] filename;
va_end(ap);
#else
va_list ap;
va_start(ap, filename_format);
char *filename;
vasprintf(&filename, filename_format, ap);
std::ifstream input(filename, std::ifstream::binary);
std::free(filename);
va_end(ap);
#endif
if(!input.good()) return false;
x.clear();
mesh.clear();
char line[LINESIZE];
std::vector<int> vertex_list;
while(input.good()){
input.getline(line, LINESIZE);
switch(line[0]){
case 'v': // vertex data
if(line[1]==' '){
Vec3d new_vertex;
std::sscanf(line+2, "%lf %lf %lf", &new_vertex[0], &new_vertex[1], &new_vertex[2]);
x.push_back(new_vertex);
}
break;
case 'f': // face data
if(line[1]==' '){
read_face_list(line+2, vertex_list);
for(int j=0; j<(int)vertex_list.size()-2; ++j)
mesh.add_triangle( Vec3st(vertex_list[0], vertex_list[j+1], vertex_list[j+2]) );
}
break;
}
}
return true;
}
bool
read_objfile(std::vector<Vector>& verts,
std::vector< std::vector<int> >& tris,
const char* filename)
{
std::ifstream input(filename, std::ifstream::binary);
if(!input.good()) return false;
verts.clear();
tris.clear();
char line[LINESIZE];
std::vector<int> vertex_list;
while(input.good()){
input.getline(line, LINESIZE);
switch(line[0]){
case 'v': // vertex data
if(line[1]==' '){
Vector new_vertex;
std::sscanf(line+2, "%f %f %f", &new_vertex[0],
&new_vertex[1],
&new_vertex[2]);
verts.push_back(new_vertex);
}
break;
case 'f': // face data
if(line[1]==' '){
read_face_list(line+2, vertex_list);
for(int j=0; j<(int)vertex_list.size()-2; ++j){
std::vector<int> face;
face.push_back(vertex_list[j]);
face.push_back(vertex_list[j+1]);
face.push_back(vertex_list[j+2]);
tris.push_back(face);
}
}
break;
}
}
return true;
}
