我在here有一个项目。我使用matrixtransform进行缩放和平移。他们按照我的预期工作。我跑的时候有两个麻烦。
代码隐藏:
- 这是我的平移功能代码:
private void canvas01_MouseMove(object sender, MouseEventArgs e)
{
if (e.MiddleButton == MouseButtonState.Pressed)
{
canvas01.Cursor = Cursors.SizeAll; //set mouse shape is panning type
var lsPoint = e.GetPosition(this);
var res = lsPoint - firstPoint;
foreach (UIElement element in canvas01.Children)
{
var transform = element.RenderTransform as MatrixTransform;
var matrix = transform.Matrix;
matrix.TranslatePrepend(res.X, res.Y);
transform.Matrix = matrix;
}
//udate first point
firstPoint = lsPoint;
}
}
- 这是我的放大/缩小功能代码:
private void canvas01_MouseWheel(object sender, MouseWheelEventArgs e)
{
foreach (UIElement element in canvas01.Children)
{
//var element = sender as UIElement;
var position = e.GetPosition(element);
var transform = element.RenderTransform as MatrixTransform;
var matrix = transform.Matrix;
var scale = e.Delta >= 0 ? 1.1 : (1.0 / 1.1); // choose appropriate scaling factor
matrix.ScaleAtPrepend(scale, scale, position.X, position.Y);
transform.Matrix = matrix;
}
}
请告知我这些情况并感谢您的建议!
答案 0 :(得分:-1)
我相信你需要的是布局转换或渲染转换。以下是两者的比较:
http://blog.scottlogic.com/2008/12/19/layouttransform-vs-rendertransform-whats-the-difference.html
他们的行为略有不同,但他们应该满足您的需求并在您的项目中解决。