vector symbols are ill-defined by nature in mapserver, especially if you are using negative values and single points like you are.
more precisely, you should *never* use -99 -99 x y -99 -99 as in that case you are drawing a line with a single point which will be rightfully discarded by cairo and agg, whereas gd will render a single pixel. A vector symbol that should work should be POINTS 0 0 1 0.5 0 1 END But I would strongly recommend that you use a truetype symbol for arrowheads: SYMBOL TYPE TRUETYPE FONT sans CHARACTER '>' NAME "to" END SYMBOL TYPE TRUETYPE FONT sans CHARACTER '<' NAME "from" END regards, thomas On Fri, May 6, 2011 at 06:59, Makoto Niwa <[email protected]> wrote: > Hi,list > > I tried new MapServer 6.0(rc2). > > I got diffrent images GD/PNG and CAIRO renderes for arrowhead symbols. > > Attached images are > ms6_gd.gif : render by GD/GIF > ms6_aggpng8.png : render by AGG/PNG > > CAIRO renderer image is as same as AGG. > CARIO/AGG renderer has incorrect ofsset for arrowhead symbols. > I used vcetor type symbols for arrowhead symbols. > > But I got same results both AGG and GD in MapSever 5.6 > > Is this behavior correct in MapServer 6 ? > > regards, > > makoto. > > --------------------------------------------------- > Symbol definition: > SYMBOL > NAME "from" > TYPE vector > POINTS > 0 10 > -20 0 > 0 -10 > -99 -99 > -40 10 > -99 -99 > -40 -10 > END > END > > SYMBOL > NAME "to" > TYPE vector > POINTS > 0 10 > 20 0 > 0 -10 > -99 -99 > 40 10 > -99 -99 > 40 -10 > END > END > > Style in the layer: > STYLE > ANGLE AUTO > GEOMTRANSFORM "start" > SYMBOL "from" > COLOR 255 20 20 > WIDTH 2 > END > STYLE > ANGLE AUTO > GEOMTRANSFORM "end" > SYMBOL "to" > COLOR 20 20 255 > WIDTH 2 > END > > --------------------------------------------------- > Makoto Niwa Orkney,Inc. > Queen's Tower C 12F > 2-3-5 Minatomirai, Nishi, Yokohama, Japan > TEL.81-45-228-3320 FAX.81-45-228-3321 > E-mail [email protected] http://www.orkney.co.jp > > _______________________________________________ > mapserver-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapserver-users > > _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
