artemp/trac2github — Issue #245: Implement label_position_tolerance on ShieldSymbolizer with line placement
Author: artemp
Created: 2011-10-09 20:23:03+00:00
State: open
Labels: Symbolizers

Mapnik doesn't seem to put two interleaved ShieldSymbolizers on the same way.

A use case is when the ShieldSymbolizer is used for displaying repeated hiking symbols, it can happen that a certain length of a way needs two or more such symbols set.

(I tested the hypothesis above by setting spacing and min_distance for two ShieldSymbolizer to different values in order to make sure they are not consistently above each other - even with taking some collisions into account, I should see them interleaved at least *sometimes*, but I don't. What I'm seeing might still have a different cause though.)