private void Render(Graphics graphics, IViewport viewport, IEnumerable <ILayer> layers)
{
Graphics = graphics;
VisibleFeatureIterator.IterateLayers(graphics, viewport, layers, RenderFeature);
}
private void Render(Graphics graphics, IViewport viewport, IEnumerable <ILayer> layers, Styles.Color background = null)
{
VisibleFeatureIterator.IterateLayers(graphics, viewport, layers, RenderFeature);
}