Does anyone have a solution on how to add the legend from a raster catalog?
It does not show up, either in version 10.1 or 10.2.1. It only shows the name "Legend".
[GIS] Add legend from raster catalog? ArcGis 10.1
arcgis-10.1arcgis-desktoplegendraster-catalog
Related Solutions
If you publish your raster catalog as an ImageService (not MapService) using ArcGIS Server 10, then you can query the raster catalog using the same Query/QueryTask that is used to query a layer inside a Map Service. (Note that in the case of a Map Service, you would point the QueryTask url to a layer within a MapService, but for an Image Service you use the url to the service itself.)
There is a sample that shows how to query the raster catalog of an Image Service layer: http://help.arcgis.com/en/webapi/flex/samples/index.html?sample=QueryImageService
The REST documentation on ImageService might also be helpful - http://help.arcgis.com/en/arcgisserver/10.0/apis/rest/index.html?imageserver.html
It's a slight fudge but try setting Width and Height on the Override default patch size part of the Legend Item properties to be very small but not zero i.e. 0.001. In my test it looks like the patch is either not there at all, or is too small to see. If you set to 0 then patches return to original size.
Best Answer
I'm not entirely clear on what you are trying to do. Do you want a legend that lists the rasters in the catalog, one that just shows the raster catalog layer, or one that shows value ranges/classification that is common to all rasters in the catalog?
This ESRI Knowledge Base article covers getting the catalog layer to show in the legend.
To show the value ranges/classification in a legend, this ERSI forum post has a workaround that selects one example raster to create and show a legend that applies to all rasters in the catalog. It relies on all of those rasters having a common classification scale. There is also an ArcGIS Idea to add that functionality natively into the program for raster catalogs.