First, I'm reading the manual page for ENVIImageIntersectionTask. There are a few options: one is RESAMPLING, and another is WARPING. Both are optional. My question is: when is warping performed? Is it always performed?

Second, in ENVIBuildLayerStackTask, there is no ability to choose the intersection, as with the (old) ENVI Classic version. The only option here is RESAMPLING.

It seems to me that the ENVIImageIntersectionTask may do (except for the actual stacking) something very similar to ENVIBuildLayerStackTask, especially if one only wants the intersection. I'm curious about the options, in particular, since *ImageIntersection* seems to have an option for warping, whereas *BuildLayerStack* does not.

Is there a recommendation when to use vs. the other?