OpenGL Texture Mapping [Equirectangular 2 Azimuthal Equidistant]

[Redrobes]

Yeah a stack overflow is exactly that but there is a site (part of google I believe) called stack overflow where you can get help on coding.

http://stackoverflow.com/

But if you do get a table of values printed out then post the table as well and I'll glance my eye at it. There's quite a few good programmers around here as well making maps. someone will be able to see it if not I.

[felixrulz]

if you do get a table of values printed out then post the table as well and I'll glance my eye at it. There's quite a few good programmers around here as well making maps. someone will be able to see it if not I.

I created some tables and analysed them in MATLAB... and i'm glad I did. it led to quite an embarrassing bug in my code:

* sorry about indenting couldn't get it to work

for (i=0; i<4; i++) { // FOR THE FOUR VERTICES OF QUAD.

// disk coordinates
p_d[n].x = b2[i] * cos(a2[i]) + x0;
p_d[n].y = b2[i] * sin(a2[i]) + y0;

// calcuate texture coordinates
AziCalc (lat_p, long_p, b2[i], a2[i], p_d[n].x, R);
p_d[n].u = 0.5 - longitude/PI2;
p_d[n].v = latitude/PI;

// I HAD THE TEXTURE WRAPPING CODE HERE!

n++;
}

// THE CODE SHOULD HAVE BEEN HERE!
// Wrap bad texture coordinates
getmax2(n-4, n-1, &max, &index); //get max value for last quad
getmin2(n-4, n-1, &min, &index); //get min value for last quad
while (max - min > 0.5){ // if texture coordinates too far apart
p_d[index].u += 1; //wrap coordinates
getmax2(n-4, n-1, &min, &index); //get max value for last quad
getmin2(n-4, n-1, &min, &index); //get min value for last quad
}
}

The program now works well. Here is the fixed version: Fixed version
(I compiled this version as 'Release' as this should hopfully get rid of some dll dependencies - not sure though)

Thank you very much Redrobes, you were very helpfull. I also have been reading some of your thread on bitmaps and am enjoying it

I have uploaded some of the code here if anyone wants to look. I

was also wndering if there was a way to add '[SOLVED]' to thread title?