/// <summary>
/// Compiles the stroke to the necessary triangles to draw it.
/// </summary>
/// <param name="path">The path to be compiled.</param>
/// <param name="width">The width of the stroke.</param>
/// <param name="lineCap">The line cap method for the stroke's ends.</param>
/// <param name="lineJoin">The line join method for the stroke's midpoints</param>
/// <param name="miterLimit">The miter limit value.</param>
public static CompiledDrawing CompileStroke(SvgPathSegmentList path, double width,
SvgStrokeLineCap lineCap = SvgStrokeLineCap.Butt,
SvgStrokeLineJoin lineJoin = SvgStrokeLineJoin.Bevel,
double miterLimit = double.PositiveInfinity)
{
// Return empty if stroke width == 0
if (width == 0)
{
return(CompiledDrawing.Empty);
}
// Divide the width by 2 to cope with the SVG documentation
var halfWidth = width / 2;
var curves = new List <Curve>();
// Convert each split path to a fill
foreach (var data in path.SplitCurves())
{
curves.AddRange(StrokeUtils.ConvertToFill(data, halfWidth, lineCap, lineJoin, miterLimit));
}
// And compile
return(CompileCurves(curves, SvgFillRule.NonZero));
}
/// <summary>
/// Determine the filled simple segments of a path, splitting lines and curves appropriately.
/// </summary>
/// <param name="path">The path that is supposed to be compiled.</param>
/// <param name="fillRule">The fill rule used to determine the filled components</param>
/// <returns>The set of simple path components.</returns>
public static CompiledDrawing CompileFill(SvgPathSegmentList path, SvgFillRule fillRule = SvgFillRule.EvenOdd)
{
var curveData = path.SplitCurves();
var curves = new List <Curve>();
foreach (var data in curveData)
{
// Add all open curves
curves.AddRange(data.Curves);
// Force close the open curves
var p0 = data.Curves[0].At(0);
var p1 = data.Curves[data.Curves.Length - 1].At(1);
if (!DoubleUtils.RoughlyEquals(p0, p1))
{
curves.Add(Curve.Line(p1, p0));
}
}
return(CompileCurves(curves, fillRule));
}
public static IEnumerable <Curve> Curves(this SvgPathSegmentList pathSegments) => pathSegments.SplitCurves().SelectMany(c => c.Curves);
