public static PointF FromD3toScreenCoords(Vec3 vec3, int resolutionX, int resolutionY)
{
if (resolutionY == 0)
return new PointF(0, 0);
double aspectChange = (resolutionX/resolutionY)/(800/600); // 800/600 = default aspect ratio
Vec3 currentLoc = Data.GetCurrentPos();
double xd = vec3.x - currentLoc.x;
double yd = vec3.y - currentLoc.y;
double zd = vec3.z - currentLoc.z;
double w = -0.515 * xd + -0.514 * yd + -0.686 * zd + 97.985;
double X = (-1.682 * xd + 1.683 * yd + 0 * zd + 7.045e-3) / w;
double Y = (-1.54 * xd + -1.539 * yd + 2.307 * zd + 6.161) / w;
double Z = (-0.515 * xd + -0.514 * yd + -0.686 * zd + 97.002) / w;
X /= aspectChange;
//if (Math.Abs(X) >= 1 || Math.Abs(Y) >= 1 || Z <= 0) // clipping bounds if not on screen
// return new PointF(0, 0);
float rX = (float)((X + 1) / 2 * resolutionX);
float rY = (float)((1 - Y) / 2 * resolutionY);
return new PointF(rX, rY);
}
public static double Distance(Vec3 a, Vec3 b)
{
float xd = a.x - b.x;
float yd = a.y - b.y;
float zd = a.z - b.z;
return Math.Sqrt(xd * xd + yd * yd + zd * zd);
}
// thanks to http://www.blizzhackers.cc/viewtopic.php?p=4584495#p4584495 and Opkllhibus
public static PointF FromD3toScreenCoords(Vec3 vec3)
{
RECT rect;
WC.GetClientRect(Globals.winHandle, out rect);
int resolutionX = rect.Width;
int resolutionY = rect.Height;
return FromD3toScreenCoords(vec3, resolutionX, resolutionY);
}