如何以編程方式更改畫布的比例？

Question

給定一個畫布對象：

MainCanvas = new Canvas();
MainCanvas.Name = "myCanvas";
MainCanvas.Height = 100;
MainCanvas.Width = 100;

如何通過代碼設置其比例（ x和y ）？

Answer 1

嘗試這個：

ScaleTransform scale = new ScaleTransform(MainCanvas.LayoutTransform.Value.M11 * ScaleRate, MainCanvas.LayoutTransform.Value.M22 * ScaleRate);
MainCanvas.LayoutTransform = scale;
MainCanvas.UpdateLayout();