[mapserver-users] [EXTERNAL] RE: Multiple Styles for a LAYER/CLASS

Jörg Thomsen (WhereGroup) joerg.thomsen at wheregroup.com
Tue Sep 15 00:28:22 PDT 2020


Hi Matt,

this Mapfile

    CLASSITEM "POPYTYPE"
    CLASSGROUP 'grey'
	CLASS
	    GROUP 'grey'
		NAME "Grenze"
		EXPRESSION /./
		STYLE
			OUTLINECOLOR 128 128 128
			WIDTH 3						
		END
	END
	CLASS
	    GROUP 'red'
		NAME "Grenze"
		EXPRESSION /./
		STYLE
			OUTLINECOLOR 255 0 0
			WIDTH 3						
		END
	END	

results in this capabilities:

<Layer queryable="0" opaque="0" cascaded="0">
<Name>Staatsgrenze</Name>
<Title>Staatsgrenze</Title>
....
<Style>
<Name>grey</Name>
<Title>grey</Title>
<LegendURL width="59" height="20">
...
</LegendURL>
</Style>
<Style>
<Name>red</Name>
<Title>red</Title>
<LegendURL width="59" height="20">
...
</LegendURL>
</Style>
</Layer>

As in MapServer one symbol in the map can be the result of many combined
style-blocks in the mapfile, you cannot name the styles but you have to
use the claasgroup in the layer and the group-keyword within the the class.

You have to distinguish between the mapfile- and the capabilities-structure.

You only need the wms_style_default_ if you want other than the auto
genrated legend-symbols.


Jörg





Am 14.09.20 um 22:35 schrieb Cechini, Matthew F. (GSFC-423.0)[Science
Systems & Applications, Inc.]:
> I don't think that is creating the desired behavior.  According the the WMS specification:
> 
> 	Zero or more Styles may be advertised for a Layer or collection of layers using <Style> elements, each of which shall have <Name> and <Title> elements. 
> 	The style's Name is used in the Map request STYLES parameter.
> 
> Which would look like the following in the Capabilities document for a layer that has two styles:
> 
>     <Layer queryable="0" opaque="0" cascaded="0">
>         <Name>VIIRS_NOAA20_Thermal_Anomalies_375m_All</Name>
>         <Title>Thermal Anomalies and Fires (375m, All, VIIRS, NOAA20)</Title>
>         ...
>         <Style>
>             <Name>default</Name>
>             <Title>default</Title>
>         </Style>
>         <Style>
>             <Name>blue</Name>
>             <Title>blue</Title>
>         </Style>
>     </Layer>
> 
> As far as I can tell/test, the CLASSGROUP configuration doesn't give me this desired behavior.  Note also that the LAYER/METADATA has the following information, which presumably would be duplicated for each supported style:
> 
>                 "wms_style"                                                    "default"
>                 "wms_style_default_legendurl_width"     "420"
>                 "wms_style_default_legendurl_height"    "95"
>                 "wms_style_default_legendurl_format"    "image/png"
>                 "wms_style_default_legendurl_href"      "https://..../legends/.....png"
> 
> Thanks,
> Matt
> .................................................................
> Matthew Cechini
> Contractor, Science Systems and Applications, Inc.
> NASA GIBS Systems/Software Engineer
> 410.205.6272
> 
> On 9/14/20, 11:05 AM, "mapserver-users on behalf of Jörg Thomsen (WhereGroup)" <mapserver-users-bounces at lists.osgeo.org on behalf of joerg.thomsen at wheregroup.com> wrote:
> 
>     I guess you are looking für classgroup:
>     
>     LAYER
>       ...
>       CLASSGROUP "group1"
>       ...
>       CLASS
>         NAME "name1"
>         GROUP "group1"
>         ...
>       END
>     
>     see https://urldefense.proofpoint.com/v2/url?u=https-3A__mapserver.org_mapfile_class.html&d=DwIGaQ&c=ApwzowJNAKKw3xye91w7BE1XMRKi2LN9kiMk5Csz9Zk&r=OipIn4BZYBcdlsutC4b_bGavezJwpYfx1lCdvhPIEUg&m=ugMtvhucImNS0kQeKIeO0NPhBwon8nGMIeDOOIfD5Y4&s=oclSQI0C1ThED5G6tbO2HojWNaYEeXUahlcUf1J3xr4&e= 
>     
>     Jörg
>     
>     Am 14.09.20 um 16:56 schrieb Cechini, Matthew F. (GSFC-423.0)[Science
>     Systems & Applications, Inc.]:
>     > Unfortunately, that’s not the functionality that I’m looking for…
>     > 
>     >  
>     > 
>     > What I want is to support “&STYLES=default” or “&STYLES=blue” query
>     > parameters resulting in different styling of the same underlying data.
>     > 
>     >  
>     > 
>     > Thanks,
>     > 
>     > Matt
>     > 
>     > .................................................................
>     > 
>     > Matthew Cechini
>     > 
>     > Contractor, Science Systems and Applications, Inc.
>     > 
>     > NASA GIBS Systems/Software Engineer
>     > 
>     > 410.205.6272
>     > 
>     >  
>     > 
>     > *From: *"Lime, Steve D (MNIT)" <steve.lime at state.mn.us>
>     > *Date: *Monday, September 14, 2020 at 10:49 AM
>     > *To: *Matthew Cechini <matthew.f.cechini at nasa.gov>,
>     > "mapserver-users at lists.osgeo.org" <mapserver-users at lists.osgeo.org>
>     > *Subject: *RE: [EXTERNAL] RE: Multiple Styles for a LAYER/CLASS
>     > 
>     >  
>     > 
>     > Names aren’t valid (or useful) at the style-level. If you remove those
>     > lines it should work and you’ll get stacked styles for each feature. --Steve
>     > 
>     >  
>     > 
>     > *From:*Cechini, Matthew F. (GSFC-423.0)[Science Systems & Applications,
>     > Inc.] <matthew.f.cechini at nasa.gov>
>     > *Sent:* Monday, September 14, 2020 7:27 AM
>     > *To:* Lime, Steve D (MNIT) <steve.lime at state.mn.us>;
>     > mapserver-users at lists.osgeo.org
>     > *Subject:* Re: [EXTERNAL] RE: Multiple Styles for a LAYER/CLASS
>     > 
>     >  
>     > 
>     > ------------------------------------------------------------------------
>     > 
>     > We’re using 7.0.1… admittedly a bit of an older version.  Mapserver
>     > balks on NAME in the STYLE element in that version.
>     > 
>     >  
>     > 
>     > Thanks,
>     > 
>     > Matt
>     > 
>     > .................................................................
>     > 
>     > Matthew Cechini
>     > 
>     > Contractor, Science Systems and Applications, Inc.
>     > 
>     > NASA GIBS Systems/Software Engineer
>     > 
>     > 410.205.6272
>     > 
>     >  
>     > 
>     > *From: *"Lime, Steve D (MNIT)" <steve.lime at state.mn.us
>     > <mailto:steve.lime at state.mn.us>>
>     > *Date: *Friday, September 11, 2020 at 5:17 PM
>     > *To: *Matthew Cechini <matthew.f.cechini at nasa.gov
>     > <mailto:matthew.f.cechini at nasa.gov>>, "mapserver-users at lists.osgeo.org
>     > <mailto:mapserver-users at lists.osgeo.org>"
>     > <mapserver-users at lists.osgeo.org <mailto:mapserver-users at lists.osgeo.org>>
>     > *Subject: *[EXTERNAL] RE: Multiple Styles for a LAYER/CLASS
>     > 
>     >  
>     > 
>     > Hi Matt: Actually that syntax is supported (except for the style NAME
>     > attribute) and you can have multiple styles inside a class. What version
>     > are you using? --Steve
>     > 
>     >  
>     > 
>     > *From:*mapserver-users <mapserver-users-bounces at lists.osgeo.org
>     > <mailto:mapserver-users-bounces at lists.osgeo.org>> *On Behalf Of
>     > *Cechini, Matthew F. (GSFC-423.0)[Science Systems & Applications, Inc.]
>     > *Sent:* Friday, September 11, 2020 2:37 PM
>     > *To:* mapserver-users at lists.osgeo.org
>     > <mailto:mapserver-users at lists.osgeo.org>
>     > *Subject:* [mapserver-users] Multiple Styles for a LAYER/CLASS
>     > 
>     >  
>     > 
>     > ------------------------------------------------------------------------
>     > 
>     > Greetings,
>     > 
>     >    I would like to provide multiple styles for the same LAYER/CLASS in
>     > our mapserver configuration.  Ideally that looks something like this,
>     > though of course this syntax isn’t currently supported.
>     > 
>     >  
>     > 
>     >     CLASS
>     > 
>     >   NAME "Thermal Anomalies"
>     > 
>     >          STYLE      
>     > 
>     >              NAME   'default'   
>     > 
>     >              SYMBOL 'circle'
>     > 
>     >              COLOR  240 40 40
>     > 
>     >              OUTLINECOLOR  240 40 40
>     > 
>     >              SIZE 3
>     > 
>     >          END
>     > 
>     >  
>     > 
>     >          STYLE        
>     > 
>     >              NAME   'blue'   
>     > 
>     >              SYMBOL 'circle'
>     > 
>     >              COLOR  0 0 255
>     > 
>     >              OUTLINECOLOR  0 0 255
>     > 
>     >              SIZE 3
>     > 
>     >          END
>     > 
>     >     END
>     > 
>     >  
>     > 
>     >    How would I accomplish this given existing functionality?
>     > 
>     >  
>     > 
>     > Thanks,
>     > 
>     > Matt
>     > 
>     > .................................................................
>     > 
>     > Matthew Cechini
>     > 
>     > Contractor, Science Systems and Applications, Inc.
>     > 
>     > NASA GIBS Systems/Software Engineer
>     > 
>     > 410.205.6272
>     > 
>     > 
>     > _______________________________________________
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>     > 
>     
>     
>     Viele Grüße,
>     Jörg Thomsen
>     
>     -- 
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>     ----------------------------------------------------------------------
>     
>     Jörg Thomsen
>     WhereGroup GmbH
>     Bundesallee 23
>     10717 Berlin
>     Germany
>     
>     Fon: +49 (0)30 / 5130 278 74
>     Fax: +49 (0)30 / 5130 278 11	
>     
>     joerg.thomsen at wheregroup.com
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>     
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> 


Viele Grüße,
Jörg Thomsen

-- 
----------------------------------------------------------------------
Aufwind durch Wissen!
Jetzt neu: Web-Seminare und Online-Schulungen
bei der www.foss-academy.com
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Jörg Thomsen
WhereGroup GmbH
Bundesallee 23
10717 Berlin
Germany

Fon: +49 (0)30 / 5130 278 74
Fax: +49 (0)30 / 5130 278 11	

joerg.thomsen at wheregroup.com
www.wheregroup.com

Geschäftsführer:
Olaf Knopp, Peter Stamm
Amtsgericht Bonn, HRB 9885

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