Hi,
I am using a polygon to extract part of a orthophoto, if I use coverage polygon or region as a mask-data, ExtractByMask Tools works perfect, but shape files give you a all-Nodata raster.
My orthophoto is a 8 bit tif, ExtractByMask Tools creates a 16 bit tif, where can I set this option?
I know I can use CopyRaster tools to do that.
I am using ArcGIS10 Pre-release in Windows XP.
Wentao
KKC, Tokyo, Japan
