I would ask this on the GEotools-users list or the Geoserver-users. There are lots of SLD experts on both lists.
Jesse On Tue, Apr 7, 2009 at 11:51 AM, Wellmann, Harald < [email protected]> wrote: > How to style line features with an arrowhead at either end? Preferably > using SLD, other methods are welcome if SLD does not support that. > > I found this thread on the subject: > http://www.nabble.com/Directional-Symbology-td12231197.html > > ...but it does fully answer the question. > > Given a line feature type with a LineSymbolizer, if I define an > additional PointSymbolizer for that type, where do the point symbols get > placed? At the first vertex, the last, somewhere in the middle of the > line? > > Do I have to create an additional point feature just to position the > arrow icon on a line feature? > > And of course it is not enough to place an arrowhead icon at the > endpoint of a line, you want the arrowhead to be correctly oriented. > > I'm thinking of something like > > <sld:LineSymbolizer> > <sld:Stroke> > <sld:CssParameter name="arrow-direction"> > <ogc:Literal>backward</ogc:Literal> > </sld:CssParameter> > <sld:CssParameter name="arrow-head"> > <ogc:Literal>double</ogc:Literal> > </sld:CssParameter> > </sld:Stroke> > </sld:LineSymbolizer> > > > where > > arrow-direction = none|forward|backward|bothways > > arrow-head = simple|double|filled|... > > and maybe you want an additional tag for placing the arrows either at > the endpoint of the line or in the middle. > > > Regards, > > Harald > > ******************************************* > innovative systems GmbH Navigation-Multimedia > Geschaeftsfuehrung: Edwin Summers - Michael Juergen Mauser > Sitz der Gesellschaft: Hamburg - Registergericht: Hamburg HRB 59980 > > ******************************************* > Diese E-Mail enthaelt vertrauliche und/oder rechtlich geschuetzte > Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail > irrtuemlich erhalten haben, informieren Sie bitte sofort den Absender und > loeschen Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte > Weitergabe dieser Mail ist nicht gestattet. > This e-mail may contain confidential and/or privileged information. If you > are not the intended recipient (or have received this e-mail in error) > please notify the sender immediately and delete this e-mail. Any > unauthorized copying, disclosure or distribution of the contents in this > e-mail is strictly forbidden. > ******************************************* > _______________________________________________ > User-friendly Desktop Internet GIS (uDig) > http://udig.refractions.net > http://lists.refractions.net/mailman/listinfo/udig-devel >
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