[mapserver-users] WMS Layer Ordering

[Paul Ramsey]

What is the algorithm which determines the relationship between layer
ordering in the map file and the layer ordering in the WMS capabilities?
They do not appear to match up 1:1. This is not an unimportant problem,
since the layer order passed in the GetMap request seems to be respected
by the renderer (so if I say LAYERS=roads,lakes my water features will
be rendered on top of my roads features). So if I read my layers out of
GetCapabilities, and then apply those layers in a GetMap in exactly the
same order I get them, the result may be quite different from the result
if I did the same query using the mapserver interface instead of the WMS
interface.

Thanks,
Paul

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     | Paul Ramsey
     | Refractions Research
     | Email: pramsey at refractions.net
     | Phone: (250) 885-0632
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