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The WPF Canvas has a coordinate system starting at (0,0) at the top-left of the control.
For example, setting the following will make my control appear on the top-left:
<Control Canvas.Left="0" Canvas.Top="0">
How can I change it to the standard cartesian coordinates?
Basically:
I noticed this post is similar, but it does not talk about translating the coordinate system. I tried adding a TranslateTransform, but I can’t make it work.
The best thing is to write a custom Canvas, in which you can write ArrangeOverride in such a way that it takes 0,0 as the center.
Update : I had given another comment in the below answer (@decasteljau) I wont recommend deriving from Canvas, You can derive from Panel and add two Attached Dependancy properties Top and Left and put the same code you pasted above. Also doesnt need a constructor with LayoutTransform in it, And dont use any transform on the panel code use proper measure and arrange based on the DesiredSize of the panel So that you can get nice content resize behavior too. Canvas doesn’t dynamically position items when the Canvas size changes.