Hi Andreas,
Am 22.10.2013 14:44, schrieb Andreas Neumann:
Hi all,
I think the dpi parameter is a useful extension and should be added by
the QGIS client (given that the dpi are really correctly detected).
Correct, therefore QGIS adds this parameter in different flavours for
the most common WMS servers (I assume because this parameter is not
defined in the WMS standard as has already been pointed out in this thread).
If a WMS server chokes on additional paramters it is not very well
designed. They can just ignore these extra parameters if they do not
know how to deal with it.
My problem is not that geoserver chokes on the additional parameters but
that for _some_ layers the geoserver-specific parameter
"format_options=dpi:96" makes it throw an error.
I know that these layers are poorly configured but cannot do anything
against it (because other software depends on them). My users currently
cannot access these layers. Miguel Ángel Castro (who started this
thread) described that he cannot access layers from
http://idecan2.grafcan.es/ServicioWMS/EspNat
Therefore I opt for a configuration option to switch off the dpi
parameter because public servers may be misconfigured and still people
want to display their layers in QGIS.
Bernhard
Just my opinion.
Andreas
Am 22.10.2013 10:30, schrieb Bernhard Ströbl:
Hi all,
I have a similar issue with geoserver.
QGIS2 request is:
http://my_internal_server/geoserver/ows?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&BBOX=my_bbox&CRS=my_crs&WIDTH=242&HEIGHT=278&LAYERS=my_layer&STYLES=&FORMAT=image/png&DPI=96&MAP_RESOLUTION=96&FORMAT_OPTIONS=dpi:96&TRANSPARENT=TRUE
entering this URL in the browser results in a geoserver error message.
However if I leave out FORMAT_OPTIONS=dpi:96 (which, according to the
geoserver docs [1] should be supported) the map image is returned.
Two more remarks
1) not all layers fail with this request
2) QGIS 1.8 did not add this dpi-96 stuff, so all my layers worked in 1.8
What was the reason to intoduce the dpi96 stuff and could we probably
change that to a configurable option (yes/no) of the WMS connection?
Bernhard
[1] http://docs.geoserver.org/latest/en/user/services/wms/vendor.html
Am 22.10.2013 10:12, schrieb Miguel Ángel Castro:
Hi Richard,
I can see what you show to me.
But, this problem not takes place in QGIS 1.8.0 with this WMS data
source (
http://idecan2.grafcan.es/ServicioWMS/EspNat) and similar others.
Something in wmsprovider.dll of QGIS 2.0.1?
Thanks in advance
Miguel Ángel Castro
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