[GRASS5] Re: [Fwd: ArcInfo ungenerate]

[Markus Neteler]

Hi developers,

Seppo Kaitala has found some ungenerate/v.in.arc problems related
to the famous "coastline extractor":
http://rimmer.ngdc.noaa.gov/coast/

Question is if we should modify v.in.arc a bit to accept comma delimited
coordinate pairs in ungen format. Of course the sed trick is feasible,
but not to be expected from the average user. Myself, I am not sure if
comma delimiter are allowed in ungenerate format.

See details below.

Regards

 Markus

On Tue, Apr 24, 2001 at 09:14:23AM +0300, Seppo Kaitala wrote:
> Hi Markus
> That is what I got.
> 
> Best Regards
> Seppo

> Travis Stevens wrote:
> > 
> > Hello Seppo Kaitala,
> > 
> > Although my knowledge of ArcInfo is not great, my sources tell me that the
> > comma delimeter is the proper format for ArcInfo ungenerate file format;
> > therefor I will keep the ArcInfo format the way it is.  However, if you
> > work on a unix type operating system, here is a simple command to make the
> > comma delimter a space delimeter:
> > 
> > cat oldfile.dat | sed -e ' s/,/ /g ' > newfile.dat
> > 
> > oldfile.dat is the downloaded file from the coastline extracter and
> > newfile.dat is a newfile that has the commas replaced with spaces.
> > 
> > If you use Microsoft Windows or a Mac, then I suggest some kind of text
> > editor that has search and replace functionality.
> > 
> > If you use any other type of operating system, then I am sorry that I
> > cannot help you.
> > 
> > If you have any more questions, please feel free to contact me.
> > -Travis
> > 
> > > Dear Travis Stevens
> > >
> > > I am happy to have the possibility to use your  excellent coastline
> > > extractor service.
> > >
> > > However, when I am extracting the data in ArcInfo ungenerate file format
> > > I get the data in format
> > >
> > > > >
> > > > > 1
> > > > >  20.899230,50.000000
> > > > >  20.899447,50.001083
> > > > >  20.899154,50.004016
> > > > >  20.899740,50.006950
> > > > >  20.900327,50.009883
> > > > >  20.900327,50.012817
> > > > >
> > >
> > > I was informed, that actually comma separator should not be there but
> > > space.
> > > That causes some trouble, when I am loading data into GRASS GIS
> > > software.
> > >
> > > If that is a mistake, could you please correct it.
> > >
> > > Best Regards
> > >
> > > Seppo Kaitala
> > >
> > > Merentutkimuslaitos, PL 33 (Lyypekinkuja 3), 00931 Helsinki
> > > Institute of Marine Research, PO Box 33, FIN-00931 Helsinki, Finland
> > > tel. +358-9-613941    fax +358-9-6857 638

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