[Gvsig_english] About gvSIG - Unsuported CRS

Fri Oct 19 13:32:12 CEST 2007

Ok, I think the problem es de versión of gvSIG (1.0). In the last version 
these CRSs are already suported. 

On Friday 19 October 2007 12:21:43 Javier Carrasco wrote:
> Hi Diego,
> You are right, Carol don't need to make a datum transformation because both
> CRSs use the same datum so it's not useful to select a manual
> transformation. I was wrong. The problem is that we can't select the
> correct CRS of the layer beacase gvSIG say "CRS not supported" and
> "Finalize" button is disabled, so the coordinates conversion is not being
> done.
>
> Javi.
>
>
> -----Mensaje original-----
> De: gvsig_internacional-bounces at runas.cap.gva.es en nombre de Diego
> Guerrero Sevilla Enviado el: vie 19/10/2007 11:14
> Para: Users and Developers mailing list
> Asunto: Re: [Gvsig_english] About gvSIG - Unsuported CRS
>
> Hi.
>
> In this case it's not necesary to perform a transformation (only a
> conversion operation is performed automatly) because the view CRS and the
> layer CRS have the same Datum (29118,29195,29100,29101 are proyected CRS
> based on 4291). You only need to select CRS for the view  before adding the
> layers, and to select the layer CRS when adding it.
>
> Bests. Diego.
>
> On Friday 19 October 2007 08:36:12 Javier Carrasco wrote:
> > Not exactly.
> > When you select one CRS for your view and then add a layer in another
> > CRS, gvSIG reprojects the layer to the view CRS. The problem is that at
> > this moment transformations are not defined for the projected Brazil CRSs
> > and you have to know the transformation parameters to make a manual
> > transformation.
> >
> > Javi.
> >
> > -----Mensaje original-----
> > De: gvsig_internacional-bounces at runas.cap.gva.es en nombre de Carol
> > Enviado el: jue 18/10/2007 20:01
> > Para: Users and Developers mailing list
> > Asunto: Re: [Gvsig_english] About gvSIG - Unsuported CRS
> >
> > Ok, I understood.
> > So, the gvSIG don´t allow that the user CHANGE the projection system,
> > neither realize a transformation of coordinates, right?
> > At least, not now, ok?
> >
> > Thanks.
> >
> > 2007/10/18, Javier Carrasco <jcarrasco at prodevelop.es>:
> > > Your shapefiles are not in EPSG 4291 (SAD69 in Lat/Long) but in a
> > > projected system (SAD69/UTM or SAD69/Brazil Polyconic with EPSG codes
> > > 29118-29195,29100,29101).
> > >
> > > When you add a layer to a view you have to select (in the combo a the
> > > bottom of the form) the CRS of the shapefile. The problem is that at
> > > this moment those CRS are not suported. You can select "Manual
> > > transformation" in the "Choose reference system" dialog to select the
> > > apropiate parameters of transformation if you know those parameters.
> > >
> > > It will be possible to customize a CRS in the future. You will be able
> > > to create your own CRSs, save and use them.
> > >
> > > Javi
> > >
> > >
> > > -----Mensaje original-----
> > > De: gvsig_internacional-bounces at runas.cap.gva.es en nombre de Carol
> > > Enviado el: jue 18/10/2007 16:26
> > > Para: Users and Developers mailing list
> > > Asunto: Re: [Gvsig_english] About gvSIG
> > >
> > > Yes, I am using EPSG 4291 (SAD69 in Lat/Long).
> > > My shapefiles are in this System: SAD69, that is the Oficial System
> > > used in
> > > Brasil.
> > >
> > > Carol.
> > >
> > > 2007/10/18, Javier Carrasco <jcarrasco at prodevelop.es>:
> > > > Do you know exactly the EPSG code the shapefile is using?
> > > >
> > > >
> > > > -----Mensaje original-----
> > > > De: gvsig_internacional-bounces at runas.cap.gva.es en nombre de Carol
> > > > Enviado el: jue 18/10/2007 13:15
> > > > Para: Users and Developers mailing list
> > > > Asunto: Re: [Gvsig_english] About gvSIG
> > > >
> > > > Hi, Javi!
> > > >
> > > > Thanks very much!
> > > > I´ve just made this and now it seems that worked, but the
> > > > coordinates,
> > >
> > > in
> > >
> > > > the view, appear in format Lat/Long with the numbers in UTM.
> > > > For example:
> > > > Lon = 775298º 25´ 58"
> > > > Lat = 9024725º 33´ 21"
> > > >
> > > > Could you help me again??
> > > > Thanks,
> > > > Carol.
> > > >
> > > > 2007/10/18, Javier Carrasco <jcarrasco at prodevelop.es>:
> > > > >  I think you should change the projection system of the view before
> > > >
> > > > adding
> > > >
> > > > > the layers.
> > > > > When adding the layers get sure you select the projection system
> > > > > the shapefile is using.
> > > > >
> > > > > I hope it helps.
> > > > > Javi
> > > > >
> > > > >
> > > > > -----Mensaje original-----
> > > > > De: gvsig_internacional-bounces at runas.cap.gva.es en nombre de Carol
> > > > > Enviado el: mié 17/10/2007 14:29
> > > > > Para: gvsig_internacional at runas.cap.gva.es
> > > > > Asunto: [Gvsig_english] About gvSIG
> > > > >
> > > > >  Hi!
> > > > >
> > > > > I am working with gvSIG and I found some problems. Can you help me?
> > > > > I am sending you the files.
> > > > > The files that are in WORD show the problems when I open one table,
> > >
> > > for
> > >
> > > > > example, and when I change the projection system.4291
> > > > >
> > > > >  The last problem was:
> > > > > 1- I added the shapes to create a new view;
> > > > > 2- I changed the projection system to SAD69 (projection used in
> > >
> > > Brazil);
> > >
> > > > > 3- I got to work in this view normally until I close the project;
> > > > > 4- In the next day, when I open my project, the view appeared
> > >
> > > distorced
> > >
> > > > as
> > > >
> > > > > show on the attached file:
> > > > >
> > > > > I haven´t gotten to discover yet what is this and every time, I
> > > > > have
> > >
> > > to
> > >
> > > > > add
> > > > > the shapes again.
> > > > >
> > > > > I hope that you can help me.
> > > > >
> > > > > Thanks,
> > > > > Carol.
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > Gvsig_internacional mailing list
> > > > > Gvsig_internacional at runas.cap.gva.es
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> > > >
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> > > > Gvsig_internacional at runas.cap.gva.es
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> > >
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-- 
Diego Guerrero Sevilla.

Instituto de Desarrollo Regional.
Universidad de Castilla-La Mancha.