I have a polyline with z (3d) layer (buried pipes). In the silverlight app, the user needs to click somewhere on the line and a popup will appear giving the elevation of the pipe at that point.
If the click point is between two vertices, then the elevation returned will be calculated from the elevations of the two surrounding vertices.
It would be a bonus if the popup was an elevation profile of the line, with a dot showing the clicked-on part and labeled with the elevation.
If there is a Geoprocessing task that takes and objectid and coordinate, and returns an elevation of the object at that coordinate, I can work with that.
I was wondering if anyone has tackled this problem before and if there are any resources so I dont re-invent the wheel.
Thanks