[GRASS5] GRASS and ESRI: ASCII format

[Markus Neteler]

Rich,

On Wed, Feb 07, 2001 at 07:27:20AM -0800, Rich Shepard wrote:
> On Wed, 7 Feb 2001, Markus Neteler wrote:
> 
> > maybe a stupid question, but I don't fully understand how to interprete
> > the ASCII GRID header of ESRI maps. I am currently writing a script to
> > generate locations directly from GIS files.
> 
> Markus,
> 
>   A few years ago, I wrote a small C program to translate the ESRI exported
> .grd file format to something usable. I'll send you the source and
> executable (it translated to linux perfectly, of course <g>) this weekend.
> I'm on my way out the door for a business trip and I won't be back until
> Friday evening.

Thanks for the software (other mail). GRASS already has r.in.arc. :-)

>   The only guess was where ESRI puts the cell location: center, southwest
> corner, or some place else. IMO, for most natural system data any error this
> induces doesn't matter at all.

My question is more related to *translate* the corner-oriented ESRI
manner to cell center oriented GRASS manner without getting a shift
of cells.

Anyway, I'll take a look into your program.

Enjoy your trip,
thanks

 Markus

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