public GtkGL.TransformationMatrix ToTransMatrix()
{
if (transMatrix != null)
{
return(this.transMatrix);
}
double[] matrix = GtkGL.TransformationMatrix.Identity.Matrix;
// Convert to radians
double Xradians = x * 2 * Math.PI / 360.0;
double Yradians = y * 2 * Math.PI / 360.0;
double Zradians = z * 2 * Math.PI / 360.0;
double ch = Math.Cos(Xradians);
double sh = Math.Sin(Xradians);
double ca = Math.Cos(Yradians);
double sa = Math.Sin(Yradians);
double cb = Math.Cos(Zradians);
double sb = Math.Sin(Zradians);
matrix[0 * 4 + 0] = ch * ca;
matrix[0 * 4 + 1] = sh * sb - ch * sa * cb;
matrix[0 * 4 + 2] = ch * sa * sb + sh * cb;
matrix[1 * 4 + 0] = sa;
matrix[1 * 4 + 1] = ca * cb;
matrix[1 * 4 + 2] = -ca * sb;
matrix[2 * 4 + 0] = -sh * ca;
matrix[2 * 4 + 1] = sh * sa * cb + ch * sb;
matrix[2 * 4 + 2] = -sh * sa * sb + ch * cb;
transMatrix = new GtkGL.TransformationMatrix(matrix);
return(transMatrix);
}
void ClearCache(object o, EventArgs e)
{
// This should happen when the Updated handler fires
quat = null;
transMatrix = null;
}
public GtkGL.TransformationMatrix ToTransMatrix()
{
if(transMatrix != null)
return this.transMatrix;
double[] matrix = GtkGL.TransformationMatrix.Identity.Matrix;
// Convert to radians
double Xradians = x * 2 * Math.PI / 360.0;
double Yradians = y * 2 * Math.PI / 360.0;
double Zradians = z * 2 * Math.PI / 360.0;
double ch = Math.Cos(Xradians);
double sh = Math.Sin(Xradians);
double ca = Math.Cos(Yradians);
double sa = Math.Sin(Yradians);
double cb = Math.Cos(Zradians);
double sb = Math.Sin(Zradians);
matrix[0*4 + 0] = ch * ca;
matrix[0*4 + 1] = sh*sb - ch*sa*cb;
matrix[0*4 + 2] = ch*sa*sb + sh*cb;
matrix[1*4 + 0] = sa;
matrix[1*4 + 1] = ca*cb;
matrix[1*4 + 2] = -ca*sb;
matrix[2*4 + 0] = -sh*ca;
matrix[2*4 + 1] = sh*sa*cb + ch*sb;
matrix[2*4 + 2] = -sh*sa*sb + ch*cb;
transMatrix = new GtkGL.TransformationMatrix(matrix);
return transMatrix;
}
void ClearCache(object o, EventArgs e)
{
// This should happen when the Updated handler fires
quat = null;
transMatrix = null;
}
