[Qgis-developer] 125 meters error

[Bartek Wol]

Hello

I am a user of QGIS 1.7.4 on 11.04 ubuntu natty and am experiencing
some issues while trying to transform shp or raster files from Pulkovo
1942(58) EPSG:3120 polish coordinate system to ETRS89 EPSG:2180 (also
a polish coordinate system). Process runs smoothly itself but produces
a placement error causing dislocation between original true placement
and transformation result (about 125 m distance between identical
points). Problem occures allso when trying to transform to ETRS89
EPSG:2179 or ETRS89 EPSG:2178. Allso trying thesame operation on QGIS
1.7.4 installed on windows 7 provides no errors at all. Seraching QGIS
forums led to simple conclusion - different gdal transformation tools
implemented in ubuntu and windows QGIS installation files (or sth like
that). Question is - will it be fixed in the nearest hackfest? This is
a serious issue which prevents companies using open source software
(like the one i work for) to grow. Allso a question refering postgis
database and raster management - rasters stored in database via
PostGIS Raster with created pyramids load slowly in QGIS cause there
is no support for pyramids. Can this support be established by a
plugin or other means to make QGIS and PostgreSQL database compatible
in this mater? If it is possible will it be implemented in one of next
QGIS releases or by plugin?

Best regards

Bartosz