topic Trouble with Hillshading in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/trouble-with-hillshading/m-p/478048#M6878 <HTML><HEAD></HEAD><BODY><SPAN>I am doing a project using the real elevation and azumith of the sun. Many of the elevations are negative, this seems to be a problem with hillshade. Is there a way to convert negative values to positive?</SPAN><BR /><BR /><SPAN>I got my data from the NOAA solar position calculator at:</SPAN><A href="http://www.srrb.noaa.gov/highlights/sunrise/azel.html">http://www.srrb.noaa.gov/highlights/sunrise/azel.html</A><SPAN> .</SPAN></BODY></HTML> Sun, 06 Feb 2011 22:45:22 GMT RobertBlomquist 2011-02-06T22:45:22Z Trouble with Hillshading https://community.esri.com/t5/arcgis-spatial-analyst-questions/trouble-with-hillshading/m-p/478048#M6878 <HTML><HEAD></HEAD><BODY><SPAN>I am doing a project using the real elevation and azumith of the sun. Many of the elevations are negative, this seems to be a problem with hillshade. Is there a way to convert negative values to positive?</SPAN><BR /><BR /><SPAN>I got my data from the NOAA solar position calculator at:</SPAN><A href="http://www.srrb.noaa.gov/highlights/sunrise/azel.html">http://www.srrb.noaa.gov/highlights/sunrise/azel.html</A><SPAN> .</SPAN></BODY></HTML> Sun, 06 Feb 2011 22:45:22 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/trouble-with-hillshading/m-p/478048#M6878 RobertBlomquist 2011-02-06T22:45:22Z