artemp/mapnik — Issue #799: Raster rendering bug and 'Segmentation fault' error
Author: artemp
Created: 2011-10-11 16:37:12+00:00
State: open
Labels: Core_Library

Large semi-transparent paletted PNG images (hillshade layer for the whole world, see attached test data) rendering bug. PNG part of XML used (for example):
{{{

zl04

gdal
/home/mapnik/raster/zl04.png

}}}
Using Mapnik2 r3009 and GDAL 1.8.0-1 under Debian.

Without additional vector data:[[BR]]
1. At the 2nd zoom level get an error: 'Segmentation fault'.[[BR]]
2. 1st zoom level - OK.

With additional vector data:[[BR]]
1. At the 3rd zoom level get an error: 'Segmentation fault'.[[BR]]
2. At 2nd zoom level get dark tiles without hillshade (not whole world, but 3/4 part of it).[[BR]]
3. 1st zoom level - OK.