How to define new styles in TDS5/ncWMS2?

[David-Gil]

I'm using v5.0.0-alpha3.

I'm trying to add new styles to TDS5, but I haven't been able to do so.

The styles and the palettes used in TDS5 are contained in edal-graphics-1.2.7.jar. How can new styles be added without touching that jar file?

Thank you!!

[David-Gil]

Related to Unidata/thredds#967

[David-Gil]

I've tried to configure ncWMS2 to add new styles in TDS as per https://reading-escience-centre.gitbooks.io/ncwms-user-guide/content/02-installation.html#servlet with no success.

What I have done:

• Added configuration file $CATALINA_BASE/conf/Catalina/localhost/ncWMS2.xml with the following content:

  <?xml version='1.0' encoding='utf-8'?>
  <Context>
  <Parameter name="configDir" value="/opt/tomcat/ncWMS2" override="false"/>
  <Parameter name="paletteDirs" value="/opt/tomcat/ncWMS2/palettes" override="false"/>
  <Parameter name="styleDirs" value="/opt/tomcat/ncWMS2/styles" override="false"/>
  </Context>

• Added style style.xml in /opt/tomcat/ncWMS2/styles.

The new style doesn't appear in the request=GetMetadata&item=layerDetails URL nor in the GetCapabilities URL.

[cofinoa]

@David-Gil,

I don't have experience with the ncWMS2, but I think it should add the parameters to $CATALINA_BASE/conf/Catalina/localhost/thredds.xml which is the actual webapp where the ncwms servlet is contained.

But it could be better if instead of adding the parameters to the above context description, try to add it directly into the webapp deployment config into the $CATALINA_BASE/webapps/thredds/WEB-INF/web.xml once the TDS is been deployed.

<!-- edal-wms servlet -->
<context-param>
    <param-name>configDir</param-name>
    <param-value>/opt/tomcat/ncWMS2</param-value>
</context-param>
<context-param>
    <param-name>paletteDirs</param-name>
    <param-value>/opt/tomcat/ncWMS2/palettes</param-value>
</context-param>
<context-param>
    <param-name>styleDirs</param-name>
    <param-value>/opt/tomcat/ncWMS2/styles</param-value>
</context-param>
.......
<!-- end edal-wms servlet -->

More details at: https://tomcat.apache.org/tomcat-8.0-doc/config/context.html#Context_Parameters

[David-Gil]

@cofinoa

I tried both $CATALINA_BASE/conf/Catalina/localhost/thredds.xml and $CATALINA_BASE/webapps/thredds/WEB-INF/web.xml and none of them got the style added...

[cofinoa]

@David-Gil

Sorry to hear that. As I have mentioned I'm not experienced on the ncWMS2 service in the TDS.

BTW, there is any relevant info on the Tomcat or TDS logs that could be related to that issue?

[lesserwhirls]

Greetings @David-Gil - the TDS does not use ncWMS2 exactly, rather we use the edal-wms artifact (ncWMS2 is built on top of edal-wms as well). We still need to hook up the config options to be exposed through the TDS.

[David-Gil]

Thank you, @lesserwhirls

[gajowi]

I'm also seeking this functionality.

[gajowi]

I see info here: https://docs.unidata.ucar.edu/tds/5.0/userguide/adding_ogc_iso_services.html but I think it only applies to the old setup (not 5.0) at least for ncWMS

[tdrwenski]

I just came across this old issue. We do have a way to configure custom palettes and styles in the latest TDS 5.5-SNAPSHOT, see documentation here for more information. We have an open issue for configuring other options such as Godiva basemaps here: https://github.com/Unidata/tds/issues/469.