How to best implement vertex snapping

FredyDi_Sano — Mon, 17 Oct 2016 17:43:30 GMT

I'm building a specialised app that allows for polygons to be drawn and part of the requirements state that when drawing a new polygon, the user should be allowed to snap points to existing polygonal regions that are with a certain range.

I found this posts which helps solve how to find a point to snap to:

.NET SDK snap function for feature geometry editing

But I've hit a glass wall when trying to modify points as they are being created. I'm currently using a Progress delegate to

catch each new vertex that has been drawn but I can't seem to do anything them. MapPoint.MoveTo does NOTHING and I can't touch the X,Y members of MapPoint either.

I also tried over-riding the editor as per this post:
https://community.esri.com/message/559163

But I run into the same issue with MapPoints there as well.

It's like you guys don't want us to touch the geometry at all but I need to be able to solve this problem. The only soloution I see at this point is either setting the mouse cursor manually through a low-level call or writing my own editor.

Any ideas would be greatly appreciated!

Cheers

topic How to best implement vertex snapping in .NET Maps SDK Questions

How to best implement vertex snapping