artemp/mapnik — Issue #540: Incorrect transparency using octree
Author: artemp
Created: 2011-10-11 16:24:40+00:00
State: open
Labels: Core_Library

When passing these options to render:

{{{png256:c=128:m=o}}}

In certain tiles pixels which should be transparent some out as gray. Attached are contiguous two tiles rendered using the same options, one shows the error the other one doesn't