Jukka<br><br>Thank you for the code I will give it a go. I guess I will dust off the field calculator in ArcMap and see if that improves things somewhat, I guess that is a similar overhead when classifying a raster by pixel value (not sure how to fix that). So if I understand you right then I would just use a number per class (1-15 say) in the new attribute field and then code something like:<br>
<br> CLASSITEM "MEAN_SP_PC"<br> CLASS<br> EXPRESSION "1" <br> NAME "> 4.00 (m/s)"<br> STYLE<br> COLOR 135 99 64<br> END<br> END<br><br>Thanks again for the insight.<br>
Chris<br><br>