AW: Re: [Qgis-user] lines with arrowheads

Düster Horst Horst.Duester at bd.so.ch
Tue Jun 3 02:16:09 EDT 2008


+1

------------------------------------------------

Dr. Horst Düster
GIS-Koordinator, Stv. Amtschef

Kanton Solothurn
Bau- und Justizdepartement
Amt für Geoinformation
SO!GIS Koordination
Rötistrasse 4
CH-4501 Solothurn

Telefon ++41(0)32 627 25 32
Telefax ++41(0)32 627 22 14

mailto:horst.duester at bd.so.ch
http://www.agi.so.ch



-----Ursprüngliche Nachricht-----
Von: Andreas Neumann [mailto:a.neumann at carto.net]
Gesendet am: Montag, 2. Juni 2008 20:53
An: qgis-user at lists.osgeo.org
Betreff: Re: [Qgis-user] lines with arrowheads

Hi Mark and others,

I don't think this is currently possible in QGIS. But I think that there

is definitely a need for such a functionality. Directionality is 
important in GIS and QGIS should some day provide a way to display arrow

heads and other markers at vertices, similar to the concept SVG supports

markers.

Also, in conjunction with GRASS, such a functionality is quite
important.

Andreas

M S wrote:
> One of the outputs from r.flow in GRASS is downslope flow lines.  
> Without arrowheads (or some similar symbol like that) at the end of 
> lines pointing which way is downhill, the lines become ambiguous.
> 
> Is there a way to draw these lines with arrowheads?   Or some other 
> approach that might achieve this?
> 
> Mark
> 
> 
>
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-- 

--
Andreas Neumann
Böschacherstrasse 6
CH-8624 Grüt (Gossau ZH)
Switzerland
Phone: ++41-44-2736668
Email: a.neumann at carto.net

Web: http://www.carto.net/neumann/
SVG Examples: http://www.carto.net/papers/svg/samples/
SVG.Open: http://www.svgopen.org/
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