private static void OutputClippedRectangle()
{
var rect1 = new RectangularePolygon(10, 10, 40, 40);
var rect2 = new RectangularePolygon(20, 0, 20, 20);
var paths = rect1.Clip(rect2);
paths.SaveImage("Clipping", "RectangleWithTopClipped.png");
}
public static IPathCollection BuildCorners(int imageWidth, int imageHeight, float cornerRadius)
{
var rect = new RectangularePolygon(-0.5f, -0.5f, cornerRadius, cornerRadius);
IPath cornerToptLeft = rect.Clip(new EllipsePolygon(cornerRadius - 0.5f, cornerRadius - 0.5f, cornerRadius));
var center = new Vector2(imageWidth / 2F, imageHeight / 2F);
float rightPos = imageWidth - cornerToptLeft.Bounds.Width + 1;
float bottomPos = imageHeight - cornerToptLeft.Bounds.Height + 1;
IPath cornerTopRight = cornerToptLeft.RotateDegree(90).Translate(rightPos, 0);
IPath cornerBottomLeft = cornerToptLeft.RotateDegree(-90).Translate(0, bottomPos);
IPath cornerBottomRight = cornerToptLeft.RotateDegree(180).Translate(rightPos, bottomPos);
return(new PathCollection(cornerToptLeft, cornerBottomLeft, cornerTopRight, cornerBottomRight));
}
public static IPathCollection BuildCorners(int imageWidth, int imageHeight, float cornerRadius)
{
// first create a square
var rect = new RectangularePolygon(-0.5f, -0.5f, cornerRadius, cornerRadius);
// then cut out of the square a circle so we are left with a corner
var cornerToptLeft = rect.Clip(new EllipsePolygon(cornerRadius - 0.5f, cornerRadius - 0.5f, cornerRadius));
// corner is now a corner shape positions top left
//lets make 3 more positioned correctly, we can do that by translating the orgional around the center of the image
var center = new Vector2(imageWidth / 2, imageHeight / 2);
float rightPos = imageWidth - cornerToptLeft.Bounds.Width + 1;
float bottomPos = imageHeight - cornerToptLeft.Bounds.Height + 1;
// move it across the width of the image - the width of the shape
var cornerTopRight = cornerToptLeft.RotateDegree(90).Translate(rightPos, 0);
var cornerBottomLeft = cornerToptLeft.RotateDegree(-90).Translate(0, bottomPos);
var cornerBottomRight = cornerToptLeft.RotateDegree(180).Translate(rightPos, bottomPos);
return(new PathCollection(cornerToptLeft, cornerBottomLeft, cornerTopRight, cornerBottomRight));
}
private static IPath GetClippedRect(int imageWidth, int imageHeight, float cornerRadius)
{
var rect = new RectangularePolygon(-0.5f, -0.5f, imageWidth + 0.5f, imageHeight + 0.5f);
return(rect.Clip(new EllipsePolygon(imageWidth * 0.5f, imageHeight * 0.5f, cornerRadius)));
}
