bool ObjIO::ReadData(std::istream & is){
std::string lineBuf;
int c;
int i=0;
while(!is.eof()){
c = is.peek();
switch (c) {
case 'V':
case 'v':{
std::string startBuf;
is >> startBuf; // get the start of the line
getline(is, lineBuf); // get the rest of the line
if(startBuf == "v"){
loadData.verts.push_back(Vector3<float>(lineBuf));
}
}
break;
case 'F':
case 'f':
{
std::stringstream buf;
is.get(*buf.rdbuf(), '\n'); // read a line into buf
is.get(); // read the not extracted \n
buf << "\n"; // and add it to the string stream
std::string tmp;
buf >> tmp; // get the first f or F (+ whitespace)
// count the number of faces, delimited by whitespace
int count = 0;
while (buf >> tmp){
count++;
}
// reset stream
buf.clear();
buf.seekg(0, std::ios::beg);
// Determine wheter we have a triangle or a quad
if (count == 3){
loadData.tris.push_back(ReadTri(buf));
}
else {
std::cerr << "Encountered polygon with " << count << " faces. Bailing out.\n";
return false;
}
}
break;
default:
// otherwise just skip the row
getline(is, lineBuf);
// output it so we see what we miss :)
// std::cerr << "\"" << lineBuf << "\"\n";
break;
}
i++;
}
return true;
}
int main(int argc, char* argv[])
{
if(argc <2)
{
printf("need: exe,inputfile\n");
}
ReadTri(argv[1]);
return 0;
}
