public void Scale(double xScale, double yScale)
{
Matrix2D iMat = new Matrix2D();
iMat.mMat[0,0] = xScale;
iMat.mMat[1,1] = yScale;
Multiply(iMat);
}
public void Translate(double x, double y)
{
Matrix2D iMat = new Matrix2D();
iMat.mMat[2,0] = x;
iMat.mMat[2,1] = y;
Multiply(iMat);
}
public void Rotate(double radian)
{
double sin = Math.Sin(radian);
double cos = Math.Cos(radian);
Matrix2D iMat = new Matrix2D();
iMat.mMat[0,0] = cos;
iMat.mMat[0,1] = sin;
iMat.mMat[1,0] = -sin;
iMat.mMat[1,1] = cos;
Multiply(iMat);
}
private void Multiply(Matrix2D iMat)
{
double[,] newMat = new double[3,3]{ {0,0,0}, {0,0,0}, {0,0,0}};
for(int i=0;i<3;i++)
for(int j=0; j<3; j++)
for(int k=0; k<3; k++)
newMat[i,j] += mMat[i,k] * iMat.mMat[k,j];
mMat = newMat;
}
