Hey, I'm building a function for ENVI to collect values of a raster at a larger number of points. I'm thinking my best option is to set up a point ROI for each and collect the value with ENVI_GET_ROI_DATA. It seems to be working well, EXCEPT: all my points are in geographic coordinates (latitude-longitude), while ROIs work with file coordinates. How do I convert between the two? Thanks! -Eric