1. Choose a CRS for your _project_ using the menu "Settings" -->
"Project properties" --> Tab "Coordinate Reference System (CRS) and
choose the CRS from the dialog. Remember to enable "on the fly CRS
transformation"
2. Open your layer(s). Don't think about the projection here.
3. Right-click on each of your layer(s) in the "Layers" dialog and
choose "Set layer CRS". If necessary, choose the CRS for the
individual layer.
In some cases the CRS for a layer can't be inferred from the information
in the layer's datafile or QGIS can't read it correctly. Executing step
3 for each "problem" layer corrects this problem.
Regards
Bo Victor Thomsen
Aestas-GIS
Denmark
Den 21-09-2012 09:23, Johan Nilsson skrev:
When I click Layer-->'Add vector layer.....' I can browse for files,
shp, gpx, and so on, but never chose an CRS in that menu. My
Background map are in RT90 coordinate system in meters approx
1500000,6500000 m but gpx files come to 17 and 60 m (not degree), way
ot of the map...
/Cheers
2012/9/21 leyan ouyang <ouyang.le...@hotmail.com
<mailto:ouyang.le...@hotmail.com>>
Yes it is possible, the option "on-the-fly reprojection" does just
that. Choose the main CRS as the project CRS (it will be used for
distance calculations, etc.). Then when you add a layer you can
choose its CRS individually, QGIS will do the transformation.
Regards,
Leyan
------------------------------------------------------------------------
Date: Fri, 21 Sep 2012 09:08:05 +0200
From: joni8...@gmail.com <mailto:joni8...@gmail.com>
To: qgis-user@lists.osgeo.org <mailto:qgis-user@lists.osgeo.org>
Subject: [Qgis-user] gfx in WSG 84 added to another CRS (EPSG:3021)
Hi.
I can transform gpx file from a GPS (WSG84) to an old swedisch CSR
EPSG:3021 (RT90 2,5 gon V metric coordinate system)) shape file,
but I whant to let the program transform on the fly.
I know that year 1999 Silicon graphic had it on there 'super
coomputers' and GIS-softwate, and I also see that QGIS have under
menue:
*Settings-->Options-->CRS*-tab have an option to check 'on the fly
reprojection' in option.
Under options-->CRS can you define default project CRS and defaut
CRS to what your add in layers, but If you have a lot of old files
with diffenent CRS it could be errors. Now Sweden is in transition
from RT90 to SweRef99 (very near WSG84)
Is it possible to add vector files with other CRS, or even rasters
to a project without transform it?
/Cheers
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