Mapsui.Rendering.Xaml.PointRenderer.CreatePointSymbolMatrix C# (CSharp) Method

        private static XamlMedia.Matrix CreatePointSymbolMatrix(double resolution, SymbolStyle symbolStyle)
        {
            var matrix = XamlMedia.Matrix.Identity;
            MatrixHelper.InvertY(ref matrix);
            var centerX = symbolStyle.SymbolOffset.X;
            var centerY = symbolStyle.SymbolOffset.Y;

            var scale = symbolStyle.SymbolScale;
            MatrixHelper.Translate(ref matrix, centerX, centerY);
            MatrixHelper.ScaleAt(ref matrix, scale, scale);

            //for point symbols we want the size to be independent from the resolution. We do this by counter scaling first.
            if (symbolStyle.UnitType != UnitType.WorldUnit)
                MatrixHelper.ScaleAt(ref matrix, resolution, resolution);
            MatrixHelper.RotateAt(ref matrix, -symbolStyle.SymbolRotation);

            return matrix;
        }