[Freegis-list] .3cd and .3tx files info needed
bernhard at intevation.de
Thu Oct 20 15:03:32 CEST 2005
Am 7. Oct 2005 um 16:58:15 schrieb emo.da at jumpy.it:
> To do so, I'm using INM software
> ( http://www.faa.gov/about/office_org/headquarters_offices/aep/models/inm_model/
> I need digital elevation files for this model, the only problem is that it
> accepts ONLY .3cd (binary format by Micropath Corporation http://www.micropath.com/
> ) and .3tx (text format by Micropath Corporation) files, and I can't find
> support for them. I have an elevation .grd file (Golden Software Surfer)
> but I can't find a way to translate/convert it in a .3tx file
> containing terrain elevations covering a one-by-one degree area;
> below there's a description of the .3tx format.
[format description clipped]
> So, if anyone of you can help me telling me about a program, a tool or a
> software that can manage my Surfer .grd file and convert it into a .3tx or
> a .3cd one, I'll be very thankful!
The format seems simple enough and usually elevation data is not complicated.
I would suggest that you write a small script that does the conversion for you.
Try to export the .grd file into something simple where you have the
format specification for and then write a small script reading this
and writing out the other stuff in the language of your choice.
(I usually use python for such tasks.)
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