[Mapserver-users] Can't seem to get the projection correct

[Juanse]

I didn´t start this thread from the beggining, nor I use projection for USA,
but as a heavy Mapinfo user, and a starter with mapserver I haven´t had any
trouble with projection except that the proj4 definitions weren't correct
for the ones I use in Chile (PSAD56)

If you check the file mapinfow.prj (usually located under program
folder/mapinfo/professional/) and check the projection number agains the
ones in proj4 lib you could check if the Nad27 is properly defined.

But for sure Mapinfo does reprojection on the fly and does not squiz"
anything.

Sincerely

Juanse
temuko-Chile

----- Original Message -----
From: Martin, Daniel <DMartin at erac.com>
To: 'Daniel Morissette' <morissette at dmsolutions.ca>
Cc: <mapserver-users at lists.gis.umn.edu>
Sent: Tuesday, February 18, 2003 2:26 PM
Subject: RE: [Mapserver-users] Can't seem to get the projection correct


> Daniel,
> Sorry to correct you, but that's not true - at least not since I've worked
> with MapInfo (version 5 through 7).  That may be an optional
configuration,
> but by default MapInfo doesn't change the aspect ratio of the data with
the
> window.  By default, the data's horizontal extent stays the same as the
> window is resized, but the vertical changes to maintain the projection.
>
> -Dan
>
>
> > -----Original Message-----
> > From: Daniel Morissette [mailto:morissette at dmsolutions.ca]
> > Sent: Tuesday, February 18, 2003 11:20 AM
> > To: Martin, Daniel
> > Cc: mapserver-users at lists.gis.umn.edu
> > Subject: Re: [Mapserver-users] Can't seem to get the
> > projection correct
> >
> >
> > "Martin, Daniel" wrote:
> > >
> > > Well, perhaps MapInfo is lying to me, but it says the
> > projection I am after
> > > *is* latlong.  It says:  "Latitude/Longitude (NAD 27 for
> > the Continental
> > > US)"
> > >
> >
> > If I remember well, in MapInfo, when you resize your map window, the
> > geographical extents are not changed, but instead the data is
> > stretched
> > to fit in the new width/height aspect ratio of the view
> > window...so you
> > can get any kind of vertical stretch or horizontal stretch in MapInfo
> > just by resizing the map window.  OTOH, MapServer will adjust the
> > geographical extent to produce square pixels, so as you
> > change your view
> > width and height the map always looks the same.
> >
> > --
> > ------------------------------------------------------------
> >  Daniel Morissette               morissette at dmsolutions.ca
> >  DM Solutions Group              http://www.dmsolutions.ca/
> > ------------------------------------------------------------
> >
> _______________________________________________
> Mapserver-users mailing list
> Mapserver-users at lists.gis.umn.edu
> http://lists.gis.umn.edu/mailman/listinfo/mapserver-users


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