旋转后获取线的新位置
我需要在一条线上使用 RotateTransform 方法找到旋转后线的新坐标。
例如，在此行之后：
line.RenderTransform = new RotateTransform(25, 0, 0);
line.X1 和其他三个属性不会更改。我找到了一些针对矩形等形状的解决方案，但它不适用于线条。 Line 有不同的处理方式。
编辑：感谢您的帮助HB第二种方法正是我一直在寻找的。
解决方案：
Line line = new Line();
line.X1 = 10;
line.Y1 = 10;
line.X2 = 20;
line.Y2 = 30;
RotateTransform rotation = new RotateTransform();
Point p1 = rotation.Transform(new Point(line.X1, line.Y1));
Point p2 = rotation.Transform(new Point(line.X2, line.Y2));
line.X1 = p1.X;
line.Y1 = p1.Y;
line.X2 = p2.X;
line.Y2 = p2.Y;
此代码旋转线并为该线的附加属性设置新的坐标值。
I need to find out new coordinates of line after rotation using RotateTransform method on a line.
For example, after this line:
line.RenderTransform = new RotateTransform(25, 0, 0);
line.X1 and the three other properties don't change. I have found some solution for shapes like rectangular, but it doesn't work for line. Line has different way how to treat with it.
EDIT: Thanks for your help H.B. The second way is exactly what I've been looking for.
SOLUTION:
Line line = new Line();
line.X1 = 10;
line.Y1 = 10;
line.X2 = 20;
line.Y2 = 30;
RotateTransform rotation = new RotateTransform();
Point p1 = rotation.Transform(new Point(line.X1, line.Y1));
Point p2 = rotation.Transform(new Point(line.X2, line.Y2));
line.X1 = p1.X;
line.Y1 = p1.Y;
line.X2 = p2.X;
line.Y2 = p2.Y;
This code rotates the line and sets a new values of coordinates to attached properties of this line.
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（1）
您可以自行转换点：
如果您想要永久变换，您可以变换起点和终点并将新值分配给相应的属性。
You can transform points on their own:
If you want a permanent transformation you can transform the start and end points and assign the new values to the respective properties.