[GeoNode-users] GeoNode Layer Style Weather Symbols and Web Links

[Toni Schönbuchner]

Hey Julierme,

am I correct that you´re using the geoserver css extension?
Can you supply the generated sld?

Further the output of:

$ ll ./geoserver/data/styles/sunny.svg

Further I think the mime type in sld for svg is
<Format>image/svg+xml" </Format>

your could try
	mark-mime: "image/svg+xml"
(unsure about this just a shot in the dark)

Cheers, 
Toni

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> Am 21.01.2019 um 16:51 schrieb Julierme Pinheiro <juliermeopensourcedeveloper at gmail.com>:
> 
> Dear Jorge and Toni,
> 
> Thank you very much for your reply.  
> 
> I have a table (db_brasilia_weather) in postgis. The table db_brasilia_weather has two attributes: weather and url_image. weather attribute has integer values of weather status and url_image attribute: the path for the weather images cloudy.svg, thunder.svg, sunny.svg, rainy.svg.
> 
> db_brasilia_weather
> 
> id     weather      url_image
> 1          0             sunny.svg
> 2          5             thunder.svg
> 3          1             rainy.svg
> 
> *.svg images are stored in  /webapps/geoserver/data/styles
> 
> Based on the information, Creating Point Styles in [1] and Item 3.4.2 about Graphic in [2], I created the following CSS (geonode.css) file:
> 
> * {
>   mark: symbol('circle');
>   mark-size: 5;
> }
> 
> :mark {
>   fill: cyan;
>   stroke: darkblue;
> }
> 
> [weather = 0] {
>   mark: url(./geoserver/data/styles/sunny.svg);
>   mark-mime: "image/svg";
>   mark-size: 100;
> }
> I have tried mark: url(sunny.svg), url("./geoserver/data/styles/sunny.svg"), but none of these configuration have been successful.
> 
> Any additional comment on this matter will be very appreciated.
> 
> Thank you very much for your time in advance.
> 
> Kind Regards
> 
> Julierme
> 
> 
> [1] http://docs.geonode.org/en/master/tutorials/advanced/adv_data_mgmt/pretty_maps/css.html#creating-point-styles <http://docs.geonode.org/en/master/tutorials/advanced/adv_data_mgmt/pretty_maps/css.html#creating-point-styles>
> [2] https://docs.geoserver.org/stable/en/user/styling/workshop/css/point.html <https://docs.geoserver.org/stable/en/user/styling/workshop/css/point.html>
> 
> 
> 
> 
> 
> On Sun, Jan 20, 2019 at 5:53 AM Toni Schönbuchner <toni.schoenbuchner at csgis.de <mailto:toni.schoenbuchner at csgis.de>> wrote:
> Hi Julierme,
> 
> I don´t think you can access a postgis entity  directly from SLD.
> The Point Symbolizer allows external graphics as mark or ressource.
>         https://docs.geoserver.org/stable/en/user/styling/sld/reference/pointsymbolizer.html#externalgraphic <https://docs.geoserver.org/stable/en/user/styling/sld/reference/pointsymbolizer.html#externalgraphic>
> Where an external ressource could also be identified as URL.
> 
> Means you could add the SVG to your static root or in some other public
> directory or even dropbox and use it as symbol. As alternative it should work
> to specific a relative path outside of the data dir where tomcat is allowed to read 
> from. With second linking to the file gets harder. 
> 
> May I ask you why the svg should be stored in the database? – unsure if there
> is some better way but for sure you could just create a django view to output
> the svg from postgres and use it like this in your sld. 
> 
> Cheers,
> 
> Toni
> 
> > Today's Topics:
> > 
> >   1. Re: GeoNode Layer Style Weather Symbols and Web  Links
> >      (Julierme Pinheiro)
> > 
> > 
> > ----------------------------------------------------------------------
> > 
> > Message: 1
> > Date: Fri, 18 Jan 2019 18:59:40 -0200
> > From: Julierme Pinheiro <juliermeopensourcedeveloper at gmail.com <mailto:juliermeopensourcedeveloper at gmail.com>>
> > To: geonode-users <geonode-users at lists.osgeo.org <mailto:geonode-users at lists.osgeo.org>>
> > Subject: Re: [GeoNode-users] GeoNode Layer Style Weather Symbols and
> >       Web     Links
> > Message-ID:
> >       <CAKTKyJK9dtC9MX_QHHH+bJvswgBzcC=BPOwodR840KZLPoZ0aA at mail.gmail.com <mailto:BPOwodR840KZLPoZ0aA at mail.gmail.com>>
> > Content-Type: text/plain; charset="utf-8"
> > 
> > Hi GeoNode users,
> > 
> > Regarding my previous email, looking at GeoServer documentation
> > <https://docs.geoserver.org/stable/en/user/styling/sld/extensions/pointsymbols.html#external-graphics <https://docs.geoserver.org/stable/en/user/styling/sld/extensions/pointsymbols.html#external-graphics>>,
> > I got the piece of SLD bellow, but burg02.svg is being retrieved from
> > $GEOSERVER_DATA_DIR/styles.
> > 
> > I would like to have:
> > 1 - burg02.svg being retrieved from a postgres table;
> > 2 - make a webpage link on burg02.svg through the  SLD file
> > 
> > 
> > <PointSymbolizer>
> >   <Graphic>
> >     <ExternalGraphic>
> >       <OnlineResource xlink:type="simple" xlink:href="burg02.svg" />
> >       <Format>image/svg+xml</Format>
> >     </ExternalGraphic>
> >     <Size>20</Size>
> >   </Graphic>
> > </PointSymbolizer>
> > 
> > 
> > Any hint on that will be very appreciated.
> > 
> > Kind regards
> > 
> > Julierme
> 

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