public static void DrawPath(ICanvas2D dc, Matrix3x2 xform, string path, OutlineFillStyle style)
{
var shapes = ParseShapes(path);
foreach (var shape in shapes)
{
var points = shape.AsSpan();
if (points[0].Equals(points[points.Length - 1]))
{
points = points.Slice(0, points.Length - 1);
dc.DrawPolygon(points, style);
continue;
}
if (style.HasFill)
{
dc.DrawPolygon(points, style.FillColor);
}
if (style.HasOutline)
{
dc.DrawLines(points, style.OutlineWidth, style.OutlineColor);
}
}
}
void IScene3D.DrawSurface(ReadOnlySpan <Point3> vertices, SurfaceStyle brush)
{
Span <XYZ> clippedVertices = stackalloc XYZ[vertices.Length * 2];
var cvertices = _FrustumNearPlane.ClipPolygonToPlane(clippedVertices, Point3.AsNumerics(vertices));
if (cvertices < 3)
{
return;
}
clippedVertices = clippedVertices.Slice(0, cvertices);
Span <Point2> points = stackalloc Point2[clippedVertices.Length];
var center = XYZ.Zero;
for (int i = 0; i < points.Length; ++i)
{
var v = clippedVertices[i];
center += v;
points[i] = _ProjectPoint(v).SelectXY();
}
center /= points.Length;
brush = brush.WithOutline(_ProjectRadius(center, brush.Style.OutlineWidth));
_RenderTarget.DrawPolygon(points, brush.Style);
}
