private IEnumerable<PointF> ConvertToPoints(SvgPathSegment arg)
{
if (arg is SvgMoveToSegment)
{
// Ignore this, as Svg library converts everything to absolute coords
}
else if (arg is SvgCubicCurveSegment)
{
var curve = arg as SvgCubicCurveSegment;
for (int i = 0; i < SegmentCount; i++)
{
// Cubic bezier yo
var t = i / (double)(SegmentCount - 1);
var c1 = Math.Pow(1 - t, 3);
var c2 = 3 * Math.Pow(1 - t, 2) * t;
var c3 = 3 * (1 - t) * Math.Pow(t, 2);
var c4 = Math.Pow(t, 3);
yield return new PointF((float)(
c1 * curve.Start.X +
c2 * curve.FirstControlPoint.X +
c3 * curve.SecondControlPoint.X +
c4 * curve.End.X), (float)(
c1 * curve.Start.Y +
c2 * curve.FirstControlPoint.Y +
c3 * curve.SecondControlPoint.Y +
c4 * curve.End.Y)
);
}
}
else
throw new NotImplementedException();
}
