On Tue, Jan 19, 2010 at 15:12, Oliver Christen < oliver.chris...@camptocamp.com> wrote:
> 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<http://dev.camptocamp.com/%7Eochriste/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 ) > where the stars are put depends on the structure of your geometry, as stored in your database or shapefiles > http://dev.camptocamp.com/~ochriste/line_feature_extremities.png<http://dev.camptocamp.com/%7Eochriste/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<http://dev.camptocamp.com/%7Eochriste/line_feature_extremity_zoomed.png> > with multiple star symbols. > the red star in these two image are from the same line feature. > are you sure your class expression matches only one geometry ? > > 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 <thomas.bonf...@gmail.com> > *To:* Oliver Christen <oliver.chris...@camptocamp.com> > *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 <thomas.bonf...@gmail.com> >> *To:* Oliver Christen <oliver.chris...@camptocamp.com> >> *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 <thomas.bonf...@gmail.com> >>> *To:* Oliver Christen <oliver.chris...@camptocamp.com> >>> *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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