Have another problem with an OBJ model format converter I'm making. As a test, I want to read in data from an OBJ file, and write it out in a different format, and then the other way around.
The problem I currently have is that I want it to be able to recognise comment files and write them without any modification. I am using istream to open the file and read the lines, but I need a way of testing whether or not the line starts with a #.
Also, I need help with reading it into a string.
Bits and pieces of my code so far:
A line with vertices (ie. "v 0.165906 -0.073740 0.414549") will have the v and the first space removed (by removing the first 2 chars), and split at the spaces, with the following code:
Vert_Out SplitVerts(string data, int id)
{
//variable defs
string in_data = data;
string middle_data = "";
string array_data[3];
double out_data [3];
//remove 'v' and space
middle_data = in_data.erase(0, 2);
//split data
stringstream split(middle_data);
string token;
//i for loop
int i = 0;
//feed split into array
while(split>>token){
array_data[i] = token;
i++;
}
//use struct for output vertex
Vert_Out vert;
//vert order num, [x-val, y-val, z-val] [from array]
vert.id = id;
vert.x = array_data[0];
vert.y = array_data[1];
vert.z = array_data[2];
//return vert for use
return vert;
}The data is stored in the following struct:
struct Vert_Out
{
//Vert order number, x-val, y-val, z-val
int id;
string x;
string y;
string z;
};This is the code I have for reading the lines (I WANT THE "line" VARIABLE TO BE A STRING, NOT A CHAR ARRAY!!!)
//open infile
ifstream infile;
infile.open(in_path.c_str());
//open outfile
ifstream outfile;
outfile.open(out_path.c_str());
//read line
char line[35];
outfile.getline(line, 35);Now I just need to get the read line into a string, and check the first letter.
Thanks for your time :)