diff options
Diffstat (limited to 'UVtools.Core/Extensions/PointExtensions.cs')
-rw-r--r-- | UVtools.Core/Extensions/PointExtensions.cs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/UVtools.Core/Extensions/PointExtensions.cs b/UVtools.Core/Extensions/PointExtensions.cs index 077b869..9a0ee94 100644 --- a/UVtools.Core/Extensions/PointExtensions.cs +++ b/UVtools.Core/Extensions/PointExtensions.cs @@ -9,13 +9,14 @@ namespace UVtools.Core.Extensions public static Point Rotate(this Point point, double angleDegree, Point pivot = default) { + if (angleDegree == 0 || angleDegree == 360) return point; double angle = angleDegree * Math.PI / 180; double cos = Math.Cos(angle); double sin = Math.Sin(angle); int dx = point.X - pivot.X; int dy = point.Y - pivot.Y; double x = cos * dx - sin * dy + pivot.X; - double y = sin * dx + cos * dy + pivot.X; + double y = sin * dx + cos * dy + pivot.Y; Point rotated = new Point((int)Math.Round(x), (int)Math.Round(y)); return rotated; |