FW: [Qgis-user] problems with layers from one source

Caroline Rendon caroline.t.rendon at gmail.com
Mon Dec 19 07:29:31 PST 2011


Okay, per all of your suggestions I have tried these things:

   - Manually setting the CRS for each layer in properties --> general
   - I tried projecting all layers with on the fly transformation enabled
   AND disabled
   - I reprojected all layers after adding them
   - I tried saving as for layers that weren't matching up (the ones in the
   millions) and setting the CRS for the saved as layer.
   - I made sure the settings were for decimal degrees and not meters or
   feet
   - I refreshed the page after every addition
   - My document is set to "prompt for CRS" rather than use project CRS or
   use default CRS

I am still having the same problem after trying all these things. In the
properties menu, everything looks like it's in the same CRS and I've tried
two different CRSs, but the layers still do not show up correctly on the
map.

The layers are all vector layers for Chicago, USA and I've been using WGS
83 and NAD 83 for the CRS.

Any other ideas? Thanks so much for the help!

Caroline

On Sun, Dec 18, 2011 at 5:31 AM, Alister Hood <alister.hood at synergine.com>wrote:

> Two things to keep in mind:
>
> - When the option "Settings>Options>CRS>Coordinate reference system for
> new layers" is set to "Use project CRS" or "Use default CRS...", any layers
> you add which don't come with CRS information will _look in QGIS_ like they
> have the same CRS... except that they won't all show up in the same place
> on the map.
>
> - In at least some recent versions of QGIS (and perhaps depending on the
> render caching setting or something), when you change the CRS of a layer
> the map is not automatically refreshed.  You need to do something to force
> it to be refreshed - zoom or pan slightly, or add a layer or something.
>  (And of course the layers will stay in the same location if you do not
> have 'on the fly' reprojection enabled in the project properties... which
> is different from enabling it by default for new projects).
>
> Alister
>
>
> > Date: Sat, 17 Dec 2011 12:53:48 -0600
> > From: Caroline Rendon <caroline.t.rendon at gmail.com>
> > Subject: Re: FW: [Qgis-user] problems with layers from one source
> > To: Gerardo Jimenez <gejst5 at hotmail.com>
> > Cc: qgis-user at lists.osgeo.org
> > Message-ID:
> >       <CAK6gUprZ-N5t6rn4boCUUHsR276Rorsz7Yy5Oxu=U7U0W-
> > HBKQ at mail.gmail.com>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Okay, I'll take another look. I thought I'd adjusted the CRS for all
> > layers
> > but I must be missing something. Thanks for your help!
> >
> > Caroline
> >
> > On Sat, Dec 17, 2011 at 11:31 AM, Gerardo Jimenez
> > <gejst5 at hotmail.com>wrote:
> >
> > >
> > >
> > > Gerardo Jiménez Delgado
> > > Instituto de Investigaciones Antropológicas
> > > Universidad Nacional Autónoma de México
> > > Ciudad Universitaria s/n
> > > Coyoacan 04510 Mexico City
> > > Mexico 56 22 95 16
> > >
> > > ------------------------------
> > > From: gejst5 at hotmail.com
> > > To: caroline.t.rendon at gmail.com
> > > Subject: RE: [Qgis-user] problems with layers from one source
> > > Date: Sat, 17 Dec 2011 12:30:49 -0500
> > >
> > >
> > >  I am sorry to differ. They can not be in the same CRS.
> > > ...
>
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