internal static Matrix CreateTranslation(double offsetX, double offsetY)
{
Matrix result = new Matrix();
result.SetMatrix(1.0, 0.0, 0.0, 1.0, offsetX, offsetY, MatrixTypes.TRANSFORM_IS_TRANSLATION);
return(result);
}
internal static Matrix CreateScaling(double scaleX, double scaleY)
{
Matrix result = new Matrix();
result.SetMatrix(scaleX, 0.0, 0.0, scaleY, 0.0, 0.0, MatrixTypes.TRANSFORM_IS_SCALING);
return(result);
}
internal static Matrix CreateRotationRadians(double angle, double centerX, double centerY)
{
Matrix result = new Matrix();
double num = Math.Sin(angle);
double num2 = Math.Cos(angle);
double offsetX = centerX * (1.0 - num2) + centerY * num;
double offsetY = centerY * (1.0 - num2) - centerX * num;
result.SetMatrix(num2, num, 0.0 - num, num2, offsetX, offsetY, MatrixTypes.TRANSFORM_IS_UNKNOWN);
return(result);
}
