[mapserver-users] How to get Layers By Group
Gregor at HostGIS
gregor at hostgis.com
Thu Feb 5 23:00:55 EST 2009
Venkat Rao Tammineni wrote:
> How can I retrieve layers by Group Name. And how to loop these
> layers based on group. Where I can able to switch on and swatch off the
> layers based on Group.
A group is just a "fake layer" with many layers. You request a group in
the same way as you would a layer; the only change is that you use the
group name and will get all the layers mixed together.
I would then request "layers=usamap" and magically get all three layers
merged into one request.
> I have Group property in my mapfile .but I don’t
> know how to get layers and populate some control
As to generating a control, that's the same as with layers as well
except that you would use getAllGroupNames() instead of
getAllLayerNames() But that depends on your own programming style and goals.
Gregor Mosheh / Greg Allensworth BS, A+, Network+, Security+, Server+
System Administrator, Lead Programmer
HostGIS development & hosting services, http://www.HostGIS.com/
"Remember that no one cares if you can back up,
only if you can restore." - AMANDA
More information about the mapserver-users