WFS: Problems with multipolygons

Steve Lime Steve.Lime at DNR.STATE.MN.US
Mon May 21 11:31:31 PDT 2007


What version of MapServer are we talking about here? There were some problems with
certain multi-part features in older version of MapServer (I don't recall exact version numbers
but can check). I believe Bart identified a test case that the fix was based on. The problem
was in the GML encoder. 4.10.3 should be fine.

Steve

>>> On 5/20/2007 at 10:15 PM, in message <46510EBC.9030808 at univali.br>, Fernando
Simon <fsimon at UNIVALI.BR> wrote:
> Hi Teemu,
>     Sorry for the delay to reply you message.
>     About this error, did you already tried to draw a map in CGI mode, 
> just to test all the polygons? Dis you already try to restrict the 
> objects in the data definition. Like: "GEOLOC FROM (SELECT ID_X, GEOLOC 
> TABLE_X WHERE ID_X = XXXXX) USING UNIQUE ID_X". Where the XXXXX is the 
> id for the object that are not draw?
>     About the objects, all have the same attributes, like SRID, GTYPE 
> and ETYPE?
>     I'm a not WFS specialist, I believe that the Bart can help in this 
> way, I can help with the Oracle relate issues.
>     Best regards.
> 
> --------------------------------------------------
> Fernando Simon
> UMN Mapserver and Oracle Spatial developer
> --------------------------------------------------  
> 
> 
> Teemu Makela wrote:
>> More information related to this issues.
>>
>> I tested the same layer through WMS and WFS. Layer works fine through WMS
>> but WFS omits all execpt one part of the multipolygon. At below you will
>> also find the mapfiles.
>>
>> See attached image "MapServer_WMS" which contains a multipolygon (5 parts
>> with label 10404).
>>
>> See another attached image "MapServer_WFS_missing_polygons_labels_from_WMS".
>> On this image only one piece of the multipolygon is visible. Labels are from
>> WMS layer just to show that there should be more data (label is variable
>> ID_X from mapfiles).
>>
>> Is it so that MapServer's WFS just cannot handle multipolygons or am I doing
>> something wrong? 
>>
>> ---- Mapfiles ----
>> WMS layer drawing polygons:
>>
>> LAYER
>> 	  NAME XXXXXX
>> 	
>> 	  TYPE POLYGON
>> 	  STATUS ON
>> 		
>> 	  CONNECTIONTYPE oraclespatial
>> 	  CONNECTION "xxx/xxx at xxx.xxx.com"
>> 	  DATA "GEOLOC FROM TABLE_X USING UNIQUE ID_X"
>> 		
>> 	  PROJECTION
>> 	    "init=epsg:2393"
>> 	  END
>> 		
>> 	  CLASS
>> 	    NAME "GEOMETRIA"
>> 	    STYLE
>> 	      OUTLINECOLOR 200 200 200
>> 	      COLOR 255 0 0
>> 	    END
>> 	  END
>> END
>>
>> WFS layer trying to draw polygons:
>>
>> LAYER
>>   NAME XXXXXX
>>   METADATA
>>     "wfs_title"				"XXXXXXXX"				
>>     "wfs_extent"				"XXX XXX XXX XXX"	
>>     "gml_featureid"			"ID_X"
>>     "gml_include_items"			"all"
>>   END
>>   TYPE POLYGON
>>   STATUS ON
>> 	
>>   CONNECTIONTYPE oraclespatial
>>   CONNECTION "xxx/xxx at xxx.xxx.com"
>>   DATA "GEOLOC FROM TABLE_X USING UNIQUE ID_X"
>> 	
>>   PROJECTION
>>     "init=epsg:2393"
>>   END
>> 	
>>   DUMP TRUE
>>   CLASS
>>     NAME "GEOMETRIA"
>>     STYLE
>>       OUTLINECOLOR 200 200 200
>>     END
>>   END
>> END
>>
>> Teemu
>>   
>>
>> ------------------------------------------------------------------------
>>
>>
>> ------------------------------------------------------------------------
>>



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