[postgis-users] Re: SRID for USA_Lambert_Conformal_Conic

[P Kishor]

On 8/19/06, Dylan Beaudette <dylan.beaudette at gmail.com> wrote:
> Do you have any of the parameters associated with the Lambert
> conformal conic projection? You will need these in order to add an
> entry to the spatial_ref_sys table, with a custom SRID.

Well, I do have the entire SRTEXT. Is that what you meant?


>
> you can get more information on your original file with a tool like ogrinfo .
>
> Cheers,
>
> On 8/19/06, P Kishor <punkish at eidesis.org> wrote:
> > Actually, I should explain this a bit further --
> >
> > (a) I had a Shapefile in USA_Lambert_Conformal_Conic that I imported
> > into PostGIS using the shp2pgsql, psql dance. Whatever I did, its SRID
> > is set to -1.
> >
> > (b) I created another dataset from lon/lat explicitly setting its SRID to 4326.
> >
> > Of course, now I can't do any geometrical analysis on these two
> > because they are in different spatial references. Ideally, I want to
> > convert my (b) dataset, the points that are in 4326, to the same srs
> > as (a) dataset, namely USA_Lambert_Conformal_Conic.
> >
> > Hence my question.
> >
> > Many thanks in advance.
> >
> > On 8/19/06, P Kishor <punkish at eidesis.org> wrote:
> > > This is a topic I know very little about. Where do I learn more about
> > > SRIDs, and more specifically,
> > >
> > > 1. how do I find SRID for USA_Lambert_Conformal_Conic; and
> > > 2. use that to change a dataset (project? is that the word wrt SRIDs?)
> > >
> >



-- 
Puneet Kishor http://punkish.eidesis.org/
Nelson Inst. for Env. Studies, UW-Madison http://www.ies.wisc.edu/
Open Source Geospatial Foundation https://edu.osgeo.org/