Question

我正在使用Matrix进行缩放。代码如下：

void Zoom_MouseWheel(object sender, MouseWheelEventArgs e)
{
        Point p = e.MouseDevice.GetPosition(clipBorder);

        Matrix m = CanvasPanel.RenderTransform.Value;
        if (e.Delta > 0)
            m.ScaleAtPrepend(1.1, 1.1, p.X, p.Y);
        else
            m.ScaleAtPrepend(1 / 1.1, 1 / 1.1, p.X, p.Y);

        CanvasPanel.RenderTransform = new MatrixTransform(m);
       // CanvasPanel.RenderTransformOrigin = new Point(0.5, 0.5);
}

我想在主窗口中单击按钮时调整画布大小。任何人都可以帮助我。

此致

Viswa

Answer 1

private void btn_Original_Click(object sender, RoutedEventArgs e)//---------------------------------------> Event for getting Original size of canvas
    {
        Matrix m = CanvasPanel.RenderTransform.Value;
        m.SetIdentity();                 
        CanvasPanel.RenderTransform = new MatrixTransform(m);
    }

这使得画布设置它的原始大小并返回到它的原始位置

缩放后调整画布大小

1 个答案: