Hello All:

I have a set of cartographic images which I would like to compress.  The 
map tiles are bounded by Lat-Long lines and the ERS file is in UTM 
projection.  I have therefore added the neat line as a raster region and 
added a formula to make everything outside the neatline polygon null.  This 
works just fine when I view it in the algorithm, however the null cells 
outside the neat line are not carried through when I compress the algorithm 
to an ECW file.  Any suggestions how I can carry the null cells through to 
the ECW file?

Thanks

Dugald

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