[Qgis-user] Fwd: gfx in WSG 84 added to another CRS (EPSG:3021)

[Johan Nilsson]

If I check for my layers are the gfx-file WSG84, and my gfx2rt90
transfomed  to RT90 in the layer over view.17, 60 and the other 1500000,
650000. the coordinates from degreed are rendered in the metric coordinate
1 500 000, 6 500 000. It doenent matter if I chance CRS in the fgx layer
are still off and don't move to right position.

/Cheers

---------- Forwarded message ----------
From: Bo Victor Thomsen <bo.victor.thomsen at gmail.com>
Date: 2012/9/21
Subject: Re: [Qgis-user] gfx in WSG 84 added to another CRS (EPSG:3021)
To: Johan Nilsson <joni8135 at gmail.com>



   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.leyan at 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: joni8135 at gmail.com
> To: qgis-user at 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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