internal static List <Vector2[]> TraceNodeHierarchyShapes(SceneNode root, TessellationOptions tessellationOptions)
{
var shapes = new List <Vector2[]>();
foreach (var nodeInfo in WorldTransformedSceneNodes(root, null))
{
var node = nodeInfo.Node;
// We process the drawables even though they are obsolete, until we remove the IDrawable interface entirely
if (node.Drawables != null)
{
foreach (var drawable in node.Drawables)
{
var vectorShape = drawable as Shape;
if (vectorShape != null)
{
foreach (var c in vectorShape.Contours)
{
var shape = ShapeUtils.TraceShape(c, vectorShape.PathProps.Stroke, tessellationOptions);
if (shape.Length > 0)
{
shapes.Add(shape.Select(v => nodeInfo.WorldTransform * v).ToArray());
}
}
continue;
}
var vectorPath = drawable as Path;
if (vectorPath != null)
{
var shape = ShapeUtils.TraceShape(vectorPath.Contour, vectorPath.PathProps.Stroke, tessellationOptions);
if (shape.Length > 0)
{
shapes.Add(shape.Select(v => nodeInfo.WorldTransform * v).ToArray());
}
continue;
}
var vectorRect = drawable as Rectangle;
if (vectorRect != null)
{
var shape = ShapeUtils.TraceRectangle(vectorRect, vectorRect.PathProps.Stroke, tessellationOptions);
if (shape.Length > 0)
{
shapes.Add(shape.Select(v => nodeInfo.WorldTransform * v).ToArray());
}
continue;
}
}
}
if (node.Shapes != null)
{
foreach (var shape in node.Shapes)
{
foreach (var c in shape.Contours)
{
var tracedShape = ShapeUtils.TraceShape(c, shape.PathProps.Stroke, tessellationOptions);
if (tracedShape.Length > 0)
{
shapes.Add(tracedShape.Select(v => nodeInfo.WorldTransform * v).ToArray());
}
}
}
}
}
return(shapes);
}
