[mapguide-users] Introducing mapguide-rest

[Jackie Ng]

Hmmm, I was going to suggest a REST API URL that uses the existing
GETMAPIMAGE mapagent operation under the hood which would've looked like
this (using Sheboygan as an example)

http://servername/mapguide/rest/library/Samples/Sheboygan/Maps/Sheboygan.MapDefinition/image.png?x=<your
x coord>&y=<your y coord>&scale=<your scale>&width=<your img
width>&height=<your img height>&showlayers=<comma-separated list of layers
to show>&hidelayers=<comma-separated list of layers to hide>

But it turns out there's a bug in GETMAPIMAGE operation in that the
SHOWLAYERS, HIDELAYERS, SHOWGROUPS and HIDEGROUPS parameters do nothing.
They do nothing because they are comma-separated lists of object ids, and
not layer/group names. This works for GETDYNAMICMAPOVERLAYIMAGE because you
have knowledge of the MgMap, so you know what object ids you can pass. But
as you'd be rendering off of a map definition, you'd never know what these
object ids could ever be as you never see the MgMap that's created off of
the map definition.

So uh, theoretically this should've been possible. At least you exposed a
bug (http://trac.osgeo.org/mapguide/ticket/2402) in the process :)

- Jackie



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