PolygonPatternSymbolizer broken with Cairo

[jburgess777]

I had a report that the landuse=forest are not being shown in the PDF output of the OSM export tab. I tried some local rendering and it seems that even PNGs rendered using Cairo are missing any rendering of forests. The same area rendered with Agg is fine.

e.g. this forest on the IOW http://www.openstreetmap.org/?lat=50.66261&lon=-1.38956&zoom=15&layers=B000FFF

It seems that perhaps the PolygonPatternSymbolizer is not working correctly with Cairo.

[tomh]

Well it certainly was working when I wrote it, so if isn't working now then somebody broke it.

[tomh]

Cemetries are working, so it must be something more complex than just all patterned polygons failing.

[jburgess777]

I notice forest.png is only RGB, whereas the graveyard is RGBA I'll try adding some alpha to the forest.png

[jburgess777]

This patch seems to fix the forest rendering

[artem]

Applied in r821.

[tomh]

Um... Why exactly does that patch work? Specifically, why were graveyards already working?

[jburgess777]

The graveyard / cemetery here does not appear in the PDF output: http://www.openstreetmap.org/?lat=55.88669&lon=-5.26222&zoom=16&layers=B000FTFT

We seem to have overlapping zoom ranges for the plain and patterned grave_yard styles. Perhaps you are seeing the plain polygon symbolizer?