At first I thought I had some oddity with the data I used for my testing ( see http://dev.camptocamp.com/~ochriste/line_with_style.png with the star symbol on every vertex of one line feature)
but after trying with some other set of data, I only have the star symbol on start and end of the whole line feature ( and, strangely, also on cross-section if the line separate in two at some point ) http://dev.camptocamp.com/~ochriste/line_feature_extremities.png so I thought the problem was solved, but upon zooming on the extrmities of the line feature, im again having strange behavior: http://dev.camptocamp.com/~ochriste/line_feature_extremity_zoomed.png with multiple star symbols. the red star in these two image are from the same line feature. why is there more than 2 stars ? does the geomtransform 'end' only work for line features consisting of only 2 points ? ----- Original Message ----- From: thomas bonfort To: Oliver Christen Cc: mapserver-users@lists.osgeo.org Sent: Tuesday, January 19, 2010 2:10 PM Subject: Re: [mapserver-users] symbol at start and end of polyline ? if you're using postgis, you can use a unique key from your table (i.e. gid) if you have a shapefile, you'll have to find an or a combination of attributes in the dbf that's unique to identify that particular feature. -- thomas On Tue, Jan 19, 2010 at 11:59, Oliver Christen <oliver.chris...@camptocamp.com> wrote: it makes sens, but how do I do that ? do line segment get automaticaly an id ? or how to get (or set) the id of the line segment? ----- Original Message ----- From: thomas bonfort To: Oliver Christen Cc: mapserver-users@lists.osgeo.org Sent: Tuesday, January 19, 2010 10:50 AM Subject: Re: [mapserver-users] symbol at start and end of polyline ? well, if you want only one line segment to have start markers, you must tell mapserver which segment that is. On Tue, Jan 19, 2010 at 10:48, Oliver Christen <oliver.chris...@camptocamp.com> wrote: thx Thomas, but im not sure I understand what you are telling me here. do line segments have id ? ----- Original Message ----- From: thomas bonfort To: Oliver Christen Cc: mapserver-users@lists.osgeo.org Sent: Tuesday, January 19, 2010 10:30 AM Subject: Re: [mapserver-users] symbol at start and end of polyline ? hi, class expression ([id]=321) style geomtransform end ... end end class style ... #all the others end end On Tue, Jan 19, 2010 at 10:14, Oliver Christen <oliver.chris...@camptocamp.com> wrote: hello I would like to add a symbol at the start and end of a polyline. I tried using GEOMTRANSFORM with "start" and "end" in a style block in the layer but sadely this will add a symbol to all start and end of every vertex of the polyline, which is not the result wanted :/ is there any way to do that, beside creating a new point layer ? thanks in advance Oliver _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
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