|
public static Multiply ( |
||
| left | left matrix | |
| right | right matrix | |
| return | ||
/// <summary>
/// calculate the matrix used to transform 3D to 2D
/// </summary>
/// <returns>maxtrix is use to transform 3d points to 2d</returns>
public Matrix4 Get3DTo2DMatrix()
{
Matrix4 result = Matrix4.Multiply(
m_to2DMatrix.Inverse(), m_moveToCenterMatrix.Inverse());
result = Matrix4.Multiply(result, m_scaleMatrix);
return(Matrix4.Multiply(result, m_MoveToPictureBoxCenter));
}
/// <summary>
/// calculate the matrix used to transform 2D to 3D
/// </summary>
/// <returns>maxtrix is use to transform 2d points to 3d</returns>
public Matrix4 Get2DTo3DMatrix()
{
Matrix4 matrix = Matrix4.Multiply(
m_MoveToPictureBoxCenter.Inverse(), m_scaleMatrix.Inverse());
matrix = Matrix4.Multiply(
matrix, m_moveToCenterMatrix);
return(Matrix4.Multiply(matrix, m_to2DMatrix));
}
/// <summary>
/// rotate slab with specific angle
/// </summary>
/// <param name="xAngle">rotate angle in X direction</param>
/// <param name="yAngle">rotate angle in Y direction</param>
public void RotateFloor(double xAngle, double yAngle)
{
if (0 == xAngle && 0 == yAngle)
{
return;
}
m_rotateAngleX += xAngle;
m_rotateAngleY += yAngle;
Matrix4 rotateX = Matrix4.RotateX(m_rotateAngleX);
Matrix4 rotateY = Matrix4.RotateY(m_rotateAngleY);
Matrix4 rotateMatrix = Matrix4.Multiply(rotateX, rotateY);
m_rotateMatrix = Matrix4.Multiply(m_MoveToPictureBoxCenter.Inverse(), rotateMatrix);
m_rotateMatrix = Matrix4.Multiply(m_rotateMatrix, m_MoveToPictureBoxCenter);
}
