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How to write a GDF (Geographic Data File)
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How to write a GDF (Geographic Data File) legacyofmarte 10-09-2006
Posted by legacyofmarte on October 9, 2006, 8:47 am
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 Hi all.

Currently i'm working on a project: i need to write a GDF File but i
have 3 problems:
1) the only available information on GDF is on Ertico Web Site,
http://www.ertico.com/en/links/links/gdf_-_geographic_data_files.htm
but the pdf's are old and there isn't any example on how to write a GDF
File
2) following the Ertico web page on GDF, i find that ISO create a
standard on GDF, so i watch for this paper. But it is not free to
download (a specification of a standard.. i don'nt understand why...)
3) i don't need ANY program to import/export with GDF, i need tecnical
information about this format. I mean with tecnical not a "beautiful
story" on GDF, but examples, counter-examples, etc..

Thanks to all :D


aL:


Posted by witek on October 13, 2006, 8:04 am
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 hello,
please visit www.tatukgis.com
our software supported GDF format

best regards
witek

legacyofmarte@gmail.com napisal(a):
> Hi all.
>
> Currently i'm working on a project: i need to write a GDF File but i
> have 3 problems:
> 1) the only available information on GDF is on Ertico Web Site,
> http://www.ertico.com/en/links/links/gdf_-_geographic_data_files.htm
> but the pdf's are old and there isn't any example on how to write a GDF
> File
> 2) following the Ertico web page on GDF, i find that ISO create a
> standard on GDF, so i watch for this paper. But it is not free to
> download (a specification of a standard.. i don'nt understand why...)
> 3) i don't need ANY program to import/export with GDF, i need tecnical
> information about this format. I mean with tecnical not a "beautiful
> story" on GDF, but examples, counter-examples, etc..
>
> Thanks to all :D
>
>
> aL:


Posted by AHN on November 17, 2006, 4:27 am
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Hi

That's makes two of us doing it.. I am also working on a project to create
GDF file from GIS data sources.. All search in the Internet lead to
Eritico where the specs are dating back to 1995.

I have come to knwo that TeleAtlas and Navtech has thier own variants
too.. Well, teh CERN variant, that I beleive is of GDF specs should work
as we are following a specification.

Look forward to collaborate and share any knowledge that is mutually
beneficial on this initiative.

Thank you

Anwar


Posted by legacyofmarte on November 21, 2006, 2:46 am
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Hi! :D
Finally someone that are working on this topic! :)
So, in the last month i worked on gdf, doing a lot of examples and if
you want i can send to you: many of them have italian comments, but i
think that are useful because are simple examples (a point, and edge, a
line, etc..).
My problems in this days are on segmentated attribute of level-1 entity
of gdf, because italian governement in 2001 decided to use gdf and
translate into italian the standard.. doing a new variant? I don't
know!
In Italy our company, Sinergis (Trento) are first that tries to work
with Gdf.


AHN ha scritto:

> Hi
>
> That's makes two of us doing it.. I am also working on a project to create
> GDF file from GIS data sources.. All search in the Internet lead to
> Eritico where the specs are dating back to 1995.
>
> I have come to knwo that TeleAtlas and Navtech has thier own variants
> too.. Well, teh CERN variant, that I beleive is of GDF specs should work
> as we are following a specification.
>
> Look forward to collaborate and share any knowledge that is mutually
> beneficial on this initiative.
>
> Thank you
>
> Anwar


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