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
