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Generate Buffers Until it intersects a specific layer

Question asked by rborchert on Oct 12, 2016
Latest reply on Oct 24, 2016 by rborchert

What I want to do is to be able to place a point feature.  The point feature has a known elevation on top of a pole derived from LIDAR data.  I also have contours derived from LIDAR.  I want to create a buffer around that point to an extent of 2 miles.  However where it intersects a contour that is equal in elevation or greater than the point the buffer will stop and adjust to the outline of the specific contour.  This is a project to help determine where to put line of site routers for a cooperative.

I have all extensions available to me.  

The end result would be similar to the image below. the Orange Dot is the point, the yellow polygon is the buffer and the black lines are contours.  If the buffer was all the way out to 2 miles it would be the full circle but I want it to stop at the designated contour line.