ArcMap's Default FeatureExtent

Discussion created by ldonahue on Jun 10, 2013
When selecting a feature and clicking zoom to selected feature in ArcMap, does anyone know what the FeatureExtent expand ratio is that is being used?  I'm guessing ArcMap does more than just set this value when deciding how to zoom to selected features.

I'm programatically selecting features of random sizes and zooming to them and I'd rather not try to expand the envelope by adding a buffer offset to the xmin, xmax, etc.

I'm using a expand ratio of 1.3 currently.