On Dec 5, 2009, at 5:11 PM, Philip Stubbs wrote: > Ok. Before I get too deep into sql I have thought of an alternative > solution. If I use point placment, many more labels appear. > Unfortunatly, it looks a mess. So, is it possible to ammend the layer > definition for the text layer to only pick up roads within a certain > length range? > > Looking at the postgis docs looks like there is an ST_Length function. > Can I use this in my layer definition?
Yes, you can put an awful lot of complicated SQL into the "table" parameter. Here's one we used not long ago: http://dpaste.com/129815/ -mike. ---------------------------------------------------------------- michal migurski- [email protected] 415.558.1610 _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
