how to compute a geopoint

Question

I have some code that captures a geopoint when the user clicks on the map.  I use the geopoint to place map objects when the user clicks the map.  So far I've just placed the object precisely where the user clicks, but now I'd like to place the object a certain number of feet away - like 10 feet to the left or right.  How would I add 10 feet to the X or Y coordinate, since those coordinates aren't in feet?

RobertScheitlin__GISP · Accepted Answer

Dave,

If you are using the standard esri basemaps then the WKID is 102100 Web Mercator and thus a projection based on meters. So to add 10 feet just add 3.048006 (simple feet to meters math).