[mapserver-users] label sizes not scaling
G'day all, using mapserver 5.4 as a WMS server (to an openlayers application) I don't seem to be able to get any scaling of labels. If I set SIZE 10, they are 10 pixel. If I don't set any size params, they are 4. If I set minsize, they are minsize (but the ALIGN is poor). if I set minsize 8 and size 10, they are size 10 and the ALIGN is pretty good. I'm actually projecting a network graph, so it would be good to be able to see the priority labels when zoomed out, and the others when zoomed in, but at a legible (and sensible) size. I'm not sure where to start - is it MapServer, WMS, OpenLayers, or a false sense I had that this was how it should work... cheers Ben (Mapfile layer (it's postgis): NAME "titles" DEBUG 2 GROUP "Nodes" SIZEUNITS PIXELS METADATA layer_title "titles" layer_order "1" "wms_title" "titles" "wms_srs" "EPSG:4326" "wms_group_title" "Nodes" END DATA "polys FROM ( SELECT n.id, n.title, n.description, colourhex, n.geom, n.rating, setsrid(n.polygeom, 4326) as polys FROM nodes n LEFT OUTER JOIN categories c ON n.category::int = c.id AND c.del = 0 WHERE n.del = 0 AND n.graphid = %GRAPHID% ) AS foo USING UNIQUE id USING srid=4326" TYPE ANNOTATION STATUS ON LABELITEM "title" LABELCACHE ON CLASS LABEL MAXLENGTH 7 WRAP " " ALIGN center BUFFER 5 MINSIZE 8 SIZE 10 MAXSIZE 24 COLOR 0 40 0 PRIORITY [rating] PARTIALSFALSE TYPETRUETYPE FONTlucida END END ) -- Ben Madin REMOTE INFORMATION t : +61 8 9192 5455 f : +61 8 9192 5535 m : 0448 887 220 Broome WA 6725 b...@remoteinformation.com.au Out here, it pays to know... ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] label sizes not scaling
You need to set a SYMBOLSCALE at the layer level. That's the scale denominator (e.g. 10) at which a label SIZE will be equal to what you set in the mapfile. As you move away from that value the labels will get larger or smaller. Steve >>> On 6/24/2009 at 3:44 AM, in message <8fd90a8c-99c0-4602-aad0-9d2c35584...@remoteinformation.com.au>, Ben Madin wrote: > G'day all, > > using mapserver 5.4 as a WMS server (to an openlayers application) I > don't seem to be able to get any scaling of labels. > > If I set SIZE 10, they are 10 pixel. If I don't set any size params, > they are 4. If I set minsize, they are minsize (but the ALIGN is > poor). if I set minsize 8 and size 10, they are size 10 and the ALIGN > is pretty good. > > I'm actually projecting a network graph, so it would be good to be > able to see the priority labels when zoomed out, and the others when > zoomed in, but at a legible (and sensible) size. > > I'm not sure where to start - is it MapServer, WMS, OpenLayers, or a > false sense I had that this was how it should work... > > cheers > > Ben > > (Mapfile layer (it's postgis): > > NAME "titles" > DEBUG 2 > GROUP "Nodes" > SIZEUNITS PIXELS > METADATA > layer_title "titles" > layer_order "1" > "wms_title" "titles" > "wms_srs" "EPSG:4326" > "wms_group_title" "Nodes" > END > DATA "polys FROM ( > SELECT n.id, n.title, n.description, colourhex, n.geom, > > n.rating, > setsrid(n.polygeom, 4326) as polys > FROM nodes n > LEFT OUTER JOIN categories c > ON n.category::int = c.id > AND c.del = 0 > WHERE n.del = 0 > AND n.graphid = %GRAPHID% > ) AS foo USING UNIQUE id USING srid=4326" > TYPE ANNOTATION > STATUS ON > LABELITEM "title" > LABELCACHE ON > CLASS > LABEL > MAXLENGTH 7 > WRAP " " > ALIGN center > BUFFER 5 > MINSIZE 8 > SIZE 10 > MAXSIZE 24 > COLOR0 40 0 > PRIORITY [rating] > PARTIALS FALSE > TYPE TRUETYPE > FONT lucida > END > END > ) ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] label sizes not scaling
Thanks Steve, I can now go back to about 20 different map files floating around the internet and get this working. For some reason after nearly five years of using MapServer I'd never worked this out! I might trac this for addition to the docs - cheers Ben On 25/06/2009, at 12:13 AM, Steve Lime wrote: You need to set a SYMBOLSCALE at the layer level. That's the scale denominator (e.g. 10) at which a label SIZE will be equal to what you set in the mapfile. As you move away from that value the labels will get larger or smaller. Steve On 6/24/2009 at 3:44 AM, in message <8fd90a8c-99c0-4602-aad0-9d2c35584...@remoteinformation.com.au>, Ben Madin wrote: using mapserver 5.4 as a WMS server (to an openlayers application) I don't seem to be able to get any scaling of labels. -- Ben Madin REMOTE INFORMATION t : +61 8 9192 5455 f : +61 8 9192 5535 m : 0448 887 220 Broome WA 6725 b...@remoteinformation.com.au Out here, it pays to know... ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
