[GRASS5] Re: [GRASSLIST:2717] How to get topology of area edges

Radim Blazek blazek at itc.it
Tue Feb 24 05:27:18 EST 2004


On Monday 23 February 2004 23:33, you wrote:
> >     I'm attempting to read GRASS's ascii vector output into a graphics
> > display program that I'm writing...  I produce this output (with
> > v.out.ascii) from a valid GRASS vector layer containing area polygons.
> > What appears in the resulting data file is a line that denote an area
> > and a number of points followed by these points... i.e.
> >
> > A 4
> > easting northing
> > ...
> > easting northing
> > ...
>
> note that should read
>
> A 4
>  northing easting
>  northing easting
>  northing easting
>  northing easting
>
> as long as the file format (and vectors in general) is changing for 5.7,
> is it too confusing to switch to x,y? maybe with an added header line
> "FORMAT: X,Y" or something? Now would be the time if we are ever going
> to fix that...

"FORMAT: X,Y" is good idea, but still could make much confusion, there
are many scripts working with ascii format.
Maybe another directory?

Radim




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