[Proj] FW Tools 1.2.2 beginner

[Conor O'Donoghue]

Frank,
Thanks for the quick reply.

Based on your replies I should be able to get started
with using GDALwarp and am happy to do so. 

However, before I start I would like to be
clearer....... Could I run proj.4 from the command
line directly without GDALwarp and if so, why would I
need to use GDALwarp?

thanks again

Conor O'Donoghue

--- Frank Warmerdam <warmerdam at pobox.com> wrote:

> Conor O'Donoghue wrote:
> > I have just installed FW tools 1.2.2
> (successfully, I
> > believe)but I am do not know how to proceed.
> > 
> > Two Questions
> > 1) I need help with choosing the most appropriate
> > utilitiy (GDAL or Proj for example). My objective
> is
> > to forward re-project, or warp, tiff's (vector
> files
> > later). I have no need to use the functionality
> with
> > another program, so i think the command line
> should be
> > fine.
> 
> Conor,
> 
> Generally speaking you would use gdalwarp to warp a
> raster
> image.   For instance if you have a geotiff
> currently samples
> on a WGS84 grid, and you wanted to reproject it to
> UTM 11 WGS84
> you might do:
> 
> gdalwarp -s_srs '+proj=latlong +datum=WGS84' \
>    -t_srs '+proj=utm +zone=11 +datum=WGS84' in.tif
> out.tif
> 
> > 2) I need some guidance in getting started. I have
> > read much of Gerald L. Evenden's Proj.4 User's
> manuals
> > and i believe i can manage the command line
> syntax.
> > Since I have no programming knowledge and can only
> > limp around in DOS I am not sure how to get the
> > command line working in the dos shell. (For
> example,
> > when in the FWTools1.2.2 or proj_lib directories
> when
> > I type "$ proj" I get '$' is not recognized as an
> > internal or external command, operable program or
> > batch file.) in that case i am not invoking the
> > proj.exe. 
> 
> The "$" is the command prompt in some examples. 
> Don't actually
> type it in.  Likewise if you see commands prefixed
> by C:\> or
> % it is likely the same thing.
> 
> Good luck,
> -- 
>
---------------------------------------+--------------------------------------
> I set the clouds in motion - turn up   | Frank
> Warmerdam, warmerdam at pobox.com
> light and sound - activate the windows |
> http://pobox.com/~warmerdam
> and watch the world go round - Rush    | President
> OSGeo, http://osgeo.org
> 
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