[GRASS-user] how to draw line with arrow mark to line top (tip)

[SGW00412 at nifty.com]

Dear Vincent

Thank you for useful information and advices !

I didnot know it.

I wiil try it!

Best
Yasuo SHIMADA (japan weather associaton)
---

Vincent Bain <bain at toraval.fr>さん：
> Hello Yasuo,
> 
> If you just need to display line directions with an arrow head on
> end-node, you can use the "display=dir" option available for d.vect.
> 
> If you need to display a custom symbol, you cannot use "icon=" option,
> which is dedicated to point and centroid features (not lines).
> 
> Envethough the following case describes a method to compose a hardcopy
> map, this wiki entry can help you :
> http://grasswiki.osgeo.org/wiki/Tips_and_Tricks#Compensate_the_lack_of_line_ends_symbology_in_ps.map
> 
> The idea is to create a point vector where points are assigned a
> rotation angle value corresponding to the line last (or first) segment
> orientation. Then you just have to call d.vect whith "icon=" and
> "rot_column=" options.
> 
> Good luck!
> 
> Vincent
> 
> 
> Le vendredi 24 janvier 2014 à 14:12 +0900, sgw00412 at nifty.com a écrit :
> > Hollow grass users
> > 
> > I'm from Japan, and biggner.
> > 
> > I do not find how to draw line with arrow mark to line top (tip).
> > 
> > for exsample...
> > 
> > normally line;
> > --------
> > 
> > line with arrow mark to line top (tip);
> > -------->
> > or
> > <--------
> > 
> > I read online manual and tried to command 'd.vect layer_name icon=basic/
arrow1
> > ', however nothing happend....
> > 
> > Does anyone to know it?
> > 
> > Best
> > Yasuo SHIMADA (japan weather associaton)
> > 
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>