Daniel Goetz wrote:
...
What stands the PORJECTION-object in the MAP-object for (not in case of
WMS)? In my understanding it defines the projetion of the output image that
mapserver generates. Is this true?
Yes
> And if so can I choose every procetion
in the PROJECTION-object of the MAP-object regardless of the projection of
the single layers?
Yes
What stands the PROJECTION-object in the LAYER-object for (not in the case
of a WMS)? In my understanding this should be the projection in which the
input data are recorded. Is this true?
Yes
> So for each LAYER there is
definitively only one type of projection possible in fact the one in which
the original input data are recorded.
Yes
Pretty easy so far!
And now the case of a WMS-Server:
What stands the PROJECTION-object in the MAP-object of a WMS-service for in
contrast to the WMS_SRS parameter of the METADATA in the MAP-object? Is
this the same as in "normal" mapserver applications and the
PROJECTION-object gives the projection mapserver shall project its
output-images? What is the difference between PROJECTION-object and WMS_SRS
parameters in the MAP-object?
I suspect the projection on the map object in a WMS situation is what would
be used if no SRS is selected in the WMS request. I believe the wms_srs
metadata is used in building the list of supported projections in the
capabilities document and may be used to validated selected SRS values.
And what about the PROCETION-object and the WMS_SRS-metadata in the
LAYER-objects? should this be the declaration of the "real" PROCETION/SRS
the input-data are in? And what is the difference between PROJECTION and
WMS_SRS in this case?
The PROJECTION block definately still needs to be the real projection of
the underlying data. I believe normally the wms_srs metadata would be the
list of supported projections the layer can be returned in. I'm not
sure why you would use a different list for the wms_srs values for layers
and the map as a whole.
I'm sorry my answers with regard to wms_srs are a bit vaguer than my
earlier answers.
Best regards,
--
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I set the clouds in motion - turn up | Frank Warmerdam, [EMAIL PROTECTED]
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