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[#817] Missing Legend Symbol indtead of exception

Date:
2008-11-06 08:43
Priority:
3
State:
Open
Submitted by:
Andreas Poth (apoth)
Assigned to:
Andreas Schmitz (aschmitz)
Operating System:
None
Component:
WMS
Summary:
Missing Legend Symbol indtead of exception

Detailed description
a) If a GetLegendGraphic request is performed against a WMS layer that set up on a raster datasource an exception will be thrown if no legend URL is defined targeting an image. It would be better to create/return a default legend symbol saying 'no legend available'



b) If no legend URL is defined in WMS configuration deegree generates a GetLegendGraphic request against itself as default. In case of a layer set up on a REMOTEWMS it should be checked if the REMOTEWMS supports GetLegendGraphic requests or offeres a legendURL for the cascaded layer (if just one layer will be requested). If so one of this URL should be used instead of GetLegendGraphic request generated by default.

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