topic Local raster math-- in Data Management Questions https://community.esri.com/t5/data-management-questions/local-raster-math/m-p/560095#M31723 <HTML><HEAD></HEAD><BODY><SPAN>Likely a very basic question, but I've been having issues performing local scale raster functions. I have a raster map with vegetation variables covering multiple counties. However, to this map I want to add values that relate to variables like the distance from paved roads (i.e., &lt;500 m = adding 2 to the matrix, 500-1000 m = adding 4, 1000-1500 = adding 6, and 1500+ = adding 8). However, when I perform the raster math function, it's taking the data value of the specified distance (e.g. a vector buffer of 500m converted to raster format) and applying it to the whole of the map instead of adding it strictly where the overlay occurred. Is there a way to only add the specified value on the local scale of interest? </SPAN><BR /><BR /><SPAN>Any information would be welcome. This has been an issue of frustration.</SPAN></BODY></HTML> Sun, 06 Feb 2011 18:04:01 GMT TorBertin 2011-02-06T18:04:01Z Local raster math-- https://community.esri.com/t5/data-management-questions/local-raster-math/m-p/560095#M31723 <HTML><HEAD></HEAD><BODY><SPAN>Likely a very basic question, but I've been having issues performing local scale raster functions. I have a raster map with vegetation variables covering multiple counties. However, to this map I want to add values that relate to variables like the distance from paved roads (i.e., &lt;500 m = adding 2 to the matrix, 500-1000 m = adding 4, 1000-1500 = adding 6, and 1500+ = adding 8). However, when I perform the raster math function, it's taking the data value of the specified distance (e.g. a vector buffer of 500m converted to raster format) and applying it to the whole of the map instead of adding it strictly where the overlay occurred. Is there a way to only add the specified value on the local scale of interest? </SPAN><BR /><BR /><SPAN>Any information would be welcome. This has been an issue of frustration.</SPAN></BODY></HTML> Sun, 06 Feb 2011 18:04:01 GMT https://community.esri.com/t5/data-management-questions/local-raster-math/m-p/560095#M31723 TorBertin 2011-02-06T18:04:01Z