/// <summary>
/// Rotates a rectangle around a coordinate
/// </summary>
/// <param name="rectangle">The rectangle to apply the rotation</param>
/// <param name="angle">The clockwise angle of the rotation</param>
/// <returns>The minimum bounding rectangle (MBR) of the rotated rectangle</returns>
public static RectangleF RotateAt(RectangleF rectangle, float angle, PointF center)
{
// The graphics transform method only accepts arrays :P
PointF[] points = new PointF[4]
{
new PointF(rectangle.Left, rectangle.Top),
new PointF(rectangle.Right, rectangle.Top),
new PointF(rectangle.Right, rectangle.Bottom),
new PointF(rectangle.Left, rectangle.Bottom)
};
Matrix rotationMatrix = new Matrix();
rotationMatrix.RotateAt((float)angle, center);
rotationMatrix.TransformPoints(points);
rotationMatrix.Dispose();
// Return the result
return(RectangleFHelper.ComputeBoundingBox(points));
}
public RectangleF TransformRectangle(RectangleF rectangle)
{
PointF[] points = RectangleFHelper.Corners(rectangle);
TransformPoints(points);
return(RectangleFHelper.ComputeBoundingBox(points));
}
