Bounding Box in NXOpen

[claforet]

I'm trying to get the extreme X and Y coordinates of an assembly using NXOpen. Essentially, I'm rotating the assembly about the Z axis one degree at a time and each time I need to get the X and Y limits of the assembly (in the absolute CSYS). Right now I'm using UFModl.AskBoundingBox to do this, but it usually returns a larger than actual bounding box (plus I have to run it on each body in the assembly and then calculate the overall box. If there is a way to do this on a component level, please let me know). Does anyone know of a way I can get a more accurate measurement of the X and Y extremes when I rotate the part? I'm running NX7.5

Thanks.