I want to add WPF Path to InkCanvas
and use selection to select WPF Path.
So, I use this code.
System.Windows.Shapes.Path path = drawCanvas.Children[i] as System.Windows.Shapes.Path;
drawCanvas.Children.RemoveAt(i);
inkCanvas.Children.Add(path);
This is the output. I have to select WPF Path from 0,0 because Actualwidth
and ActualHeight
start from 0,0.
How do I select absolute WPF Path?
Thanks
Edit:
Now, I can select it absolutely by using this code.
System.Windows.Shapes.Path path = drawCanvas.Children[i] as System.Windows.Shapes.Path;
drawCanvas.Children.RemoveAt(i);
path.Margin = new Thickness(-getMinX(path), -getMinY(path), 0, 0);
containPath.Children.Add(path);
containPath.Width = getMaxX(path) - getMinX(path);
containPath.Height = getMaxY(path) - getMinY(path);
containPath.Margin = new Thickness(getMinX(path), getMinY(path), 0, 0);
inkCanvas.Children.Add(containPath);
You can use the UIElement.UpdateLayout Method on the
InkCanvas
to update the FrameworkElement.ActualWidth Property andActualHeight
. See theActualWidth
link for background information on why this is needed.Edit:
I misunderstood the question. It wasn't that
ActualWidth
andActualHeight
were zero but that their values were relative to(0, 0)
on theInkCanvas
. A pretty good solution to the problem is to wrap thePath
in aCanvas
and position it usingMargin
like this:which behaves like:
The disadvantage of this approach is the user has to lasso the
Canvas
which is a rectangle, not an arbitrary shape. Nevertheless, it's a lot better than having to lasso the object and the origin.