How can I use a polygon (which is made up of smaller polygons) to create individual DEMs from a large DEM using the polygons as the mask/extent? I am trying to do this in ModelBuilder and it isn't working. I have a shapefile made up of lots of smaller polygons (each with their own attribute/number that looks like this:
I tried to use this in ModelBuilder by: Insert-Iterator-Feature selection. Then I used the shapefile 'poly' as the 'input features' and I grouped by field (station number). I then added the 'extract by mask' tool and choose my large DEM as the 'input raster'. Then I have to choose the feature mask data:Do I input the same polygon file that has the station number (below poly_Station number)? Finally I'm really not sure how to specify the naming convention OR the file type: eg. In the extract by mask output raster option, I am putting: C:\User\Documents\ArcGIS\Default.gdb\Extract_%value%.
Is %value% right here? Should I be including a file type also?
Here are the errors I am getting:
ERROR 999999: Error executing function. FDO error: -2147024894 FDO error: -2147024894 [GDB_SystemCatalog] No spatial reference exists. ERROR 010302: Unable to create the output raster: C:\Users\Documents\ArcGIS\Default.gdb\Extract_10002 ERROR 010067: Error in executing grid expression. Failed to execute (Extract by Mask). Failed at Mon Jun 13 16:51:00 2016 (Elapsed Time: 2.63 seconds)