Enum PathDirection

Namespace

Egami.Drawing

Assembly

Egami.Drawing.dll

The direction a shape's outline runs, on a y-down screen.

public enum PathDirection

Fields

Clockwise = 0

Clockwise on screen. The default for added shapes.

CounterClockwise = 1

Counterclockwise on screen: added inside a clockwise shape, it makes a hole under NonZero.

Examples

// A path is built once and never changes, so it can be drawn many times and from many threads.
Path heart = new PathBuilder()
    .MoveTo(150, 60)
    .CubicTo(150, 30, 100, 20, 90, 60)
    .CubicTo(80, 100, 130, 130, 150, 160)
    .CubicTo(170, 130, 220, 100, 210, 60)
    .CubicTo(200, 20, 150, 30, 150, 60)
    .Close()
    .ToPath();
canvas.FillPath(heart, Rgba8.Red);

// SVG's arc command, and the even-odd rule: an inner contour becomes a hole.
Path frame = new PathBuilder()
    .AddRect(new RectF(10, 10, 60, 60))
    .AddCircle(new Vector2(40, 40), 20)
    .MoveTo(10, 120)
    .ArcTo(radii: new Vector2(30, 20), rotationDegrees: 0, largeArc: false, clockwise: true, end: new Vector2(70, 120))
    .Close()
    .ToPath(FillRule.EvenOdd);
canvas.FillPath(frame, Rgba8.Black);

bool hit = heart.Contains(new Vector2(150, 100));   // hit testing on the curves themselves
RectF box = heart.TightBounds;                       // curves measured at their extremes