void CTiglTransformation::AddScaling(double sx, double sy, double sz)
{
// Matrix is:
//
// ( sx 0 0 0 )
// ( 0 sy 0 0 )
// ( 0 0 sz 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, sx);
trans.SetValue(1, 1, sy);
trans.SetValue(2, 2, sz);
PreMultiply(trans);
}
// Adds a translation to this transformation. Translation part
// is stored in the last column of the transformation matrix.
void CTiglTransformation::AddTranslation(double tx, double ty, double tz)
{
// Matrix is:
//
// ( 1 0 0 tx )
// ( 0 1 0 ty )
// ( 0 0 1 tz )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 3, tx);
trans.SetValue(1, 3, ty);
trans.SetValue(2, 3, tz);
PreMultiply(trans);
}
void CTiglTransformation::AddRotationZ(double degreeZ)
{
double radianZ = DegreeToRadian(degreeZ);
double sinVal = sin(radianZ);
double cosVal = cos(radianZ);
// Matrix is:
//
// ( cosVal -sinVal 0 0 )
// ( sinVal cosVal 0 0 )
// ( 0 0 1 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, cosVal);
trans.SetValue(0, 1, -sinVal);
trans.SetValue(1, 0, sinVal);
trans.SetValue(1, 1, cosVal);
PreMultiply(trans);
}
void CTiglTransformation::AddRotationY(double degreeY)
{
double radianY = DegreeToRadian(degreeY);
double sinVal = sin(radianY);
double cosVal = cos(radianY);
// Matrix is:
//
// ( cosVal 0 sinVal 0 )
// ( 0 1 0 0 )
// (-sinVal 0 cosVal 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, cosVal);
trans.SetValue(0, 2, sinVal);
trans.SetValue(2, 0, -sinVal);
trans.SetValue(2, 2, cosVal);
PreMultiply(trans);
}
void CTiglTransformation::AddRotationX(double degreeX)
{
double radianX = DegreeToRadian(degreeX);
double sinVal = sin(radianX);
double cosVal = cos(radianX);
// Matrix is:
//
// ( 1 0 0 0 )
// ( 0 cosVal -sinVal 0 )
// ( 0 sinVal cosVal 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(1, 1, cosVal);
trans.SetValue(1, 2, -sinVal);
trans.SetValue(2, 1, sinVal);
trans.SetValue(2, 2, cosVal);
PreMultiply(trans);
}
// Adds mirroring at yz plane
void CTiglTransformation::AddMirroringAtYZPlane(void)
{
// Matrix is:
//
// ( -1 0 0 0 )
// ( 0 1 0 0 )
// ( 0 0 1 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, -1.0);
PreMultiply(trans);
}
// Adds projection an yz plane by setting the x coordinate to 0
void CTiglTransformation::AddProjectionOnYZPlane(void)
{
// Matrix is:
//
// ( 0 0 0 0 )
// ( 0 1 0 0 )
// ( 0 0 1 0 )
// ( 0 0 0 1 )
CTiglTransformation trans;
trans.SetValue(0, 0, 0.0);
PreMultiply(trans);
}