[Qgis-developer] Unexpected change in ESPG codes from shapefiles (in stable and dev)
kari.salovaara at pp1.inet.fi
Thu Dec 18 09:35:32 PST 2014
in Finland we have map datasets free of charge to download from The
National Land Survey of Finland (NLS). See
From Topographic Database You can download in ESRI shape format any
Finnish map area. In each area You'll get a number of shapefiles related
to category and each category has also a *.prj file.
The problem arises when You make a layer from any of these shapefiles in
1. set project CRS to Finnish ESPG:3067 ( which is on the list EPSG:3067
- ETRS89 / ETRS-TM35FIN)
2. make a layer from shapefile, as it has *.prj which starts like
You expect the layer CRS to be 3067 but when You look to layer
properties it shows 3047 (in the dialog list EPSG:3047 - ETRS89 /
(which means, I think,
small but nasty difference.
This problem can cause difficulties when creating scripts for automation
And very odd is that when You have created an empty project with CRS set
to 3067 and create a shapefile its *.prj file starts
but in this case the EPSG is 3067.
For my knowledge ETRS-TM35FIN is always and only EPSG:3067.
Could someone explain is this failure in QGIS or GDAL/OGR or PROJ.4?
This problem has been tested in 2.6.1 (latest update in OpenSuse12.3)
and 2.7.0 (nightly) versions and both linux and win 7 environments.
Finnish QGIS society are waiting this Christmas Question answer with
With warm and kind regards,
PS. This has been discussed here locally without any final
understanding. Some guess has been that program only looks and takes
first some nearly suitable code and uses it.
"Volunteers do not necessarily have the time; they just have the heart."
~ Elizabeth Andrew
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