I use the Slope Tool (Spatial Analyst Tool – Surface) of ArcGIS10 by ASTER GDEM (that was exported to UTM projection). The program produce new raster (with slope value), but the resulting raster doesn’t have the attribute table (it has it in inactive form). But it’s possible to create a map from this raster by slope value, it’s possible to represent each pixel of the secondary raster in its unique value, but impossible to open the attribute table.
The same problem has the Aspect Tool (Spatial Analyst Tool – Surface), maybe some others. Also I can’t convert this raster to a polygon, because Raster to Polygon Tool doesn’t see it as a raster.
How I can make the attribute table of the resulting raster active?