[GRASS-dev] [grass-code R][510] v.to.db option=length: please report line's 3d length

[Martin Landa]

Hi,

should be fixed in CVS.

Martin

2007/10/12, grass-dev at grass.itc.it <grass-dev at grass.itc.it>:
> code R item #510, was opened at 2007-10-12 15:40
> Status: Open
> Priority: 3
> Submitted By: Maciej Sieczka (msieczka)
> Assigned to: Nobody (None)
> Summary: v.to.db option=length: please report line's 3d length
> Issue status: None
> GRASS component: vector
> Operating system: all
> Operating system version:
>
>
> Initial Comment:
> Currently v.to.db always assumes input vector is flat. Condider two vector lines:
>
> $ v.out.ascii line_3d form=standard
> L  2
>  571600       5722275.5    1
>  571610       5722275.5    4
>
> $ v.out.ascii line_flat form=standard
> L  2
>  571600       5722275.5
>  571610       5722275.5
>
>
> Although line_3d's length is 10.440307 and line_flat's is 10, v.to.db will report 10 for both:
>
> $ v.to.db -p opt=length map=line_3d col=dummy
> cat|length
> -1|10
>
> v.to.db's options coor, start, end already support Z attribute. Please implement it for length too.
>
>
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>
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-- 
Martin Landa <landa.martin at gmail.com> * http://gama.fsv.cvut.cz/~landa *