public override IBrush GetBrush(byte alpha)
{
if (_canvasRadialGradientBrush == null)
{
var center = new Vector2(_x0, _y0);
center = LocalMatrix.Transform(center);
//
// var properties = new RadialGradientBrushProperties
// {
// RadiusX = _r,
// RadiusY = _r,
// Center = center
// };
//
// var collection = new GradientStopCollection(renderTarget, _canvasGradientStopCollection, Gamma.Linear, ExtendMode.Clamp);
// //TODO: OID: property missed, Same for Linear
//
_canvasRadialGradientBrush = new RadialGradientBrush
{
Radius = _r,
Center = new RelativePoint(center.X, center.Y, RelativeUnit.Relative),
GradientStops = _canvasGradientStopCollection
};
}
_canvasRadialGradientBrush.Opacity = alpha / 255f;
return(_canvasRadialGradientBrush.ToImmutable());
}