Change the coordinate system of a Canvas in WPF

Question

I\'m writing a mapping app that uses a Canvas for positioning elements. For each element I have to programatically convert element\'s Lat/Long to the canvas\' coordinate, then

Answer 1

You can use transform to translate between the coordinate systems, maybe a TransformGroup with a TranslateTranform to move (0,0) to the center of the canvas and a ScaleTransform to get the coordinates to the right range.

With data binding and maybe a value converter or two you can get the transforms to update automatically based on the canvas size.

The advantage of this is that it will work for any element (including a PathGeometry), a possible disadvantage is that it will scale everything and not just points - so it will change the size of icons and text on the map.