Good morning list,
I installed Grass7 (WinGRASS-7.0.svn-r55270-516-Setup.exe ) on a winxp as i need to use i.histo.match (not present in 6). Installing from menu (gui) doesn't work (see att).
Tried manually and although it installs correctly this error message shows when executing it:
g.extension ext=i.histo.match
Downloading precompiled GRASS Addons <i.histo.match>...
Updating metadata file...
Installation of <i.histo.match> successfully finished
(Mon Mar 04 10:19:01 2013) Command finished (5 sec)
Traceback (most recent call last):
File
"C:\GRASSGIS70svn\etc\gui\wxpython\gui_core\prompt.py", line
271, in OnItemSelected
self.cmdDesc = gtask.parse_interface(GetRealCmd(cmd))
File "C:\GRASSGIS70svn\etc\python\grass\script\task.py",
line 484, in parse_interface
tree = etree.fromstring(get_interface_description(name))
File "C:\GRASSGIS70svn\etc\python\grass\script\task.py",
line 461, in get_interface_description
"\n\nDetails: %(det)s") % { 'cmd' : cmd, 'det' :
decode(cmderr) }
grass.script.core
.
ScriptError
:
Unable to fetch interface description for command
'i.histo.match.py'.
Details: C:\GRASSGIS70svn\extrabin\python.exe: can't open
file 'i.histo.match.py': [Errno 2] No such file or directory
Any thoughts?
Thanks in advance
luis
Luís Mário Ribeiro
ADAI | CEIF
www.adai.pt/ceif
Forest Fire Research Centre | Univ. of Coimbra
Rua Pedro Hispano n12 | 3030 - 289 Coimbra
Telf: +351 239 708580 | Fax: +351 239 708589
-----Mensagem original-----
De: grass-user-bounces@lists.osgeo.org [mailto:grass-user-bounces@lists.osgeo.org] Em nome de Vincent Bain
Enviada: segunda-feira, 4 de Março de 2013 06:34
Para: Hamish
Cc: GRASS user list
Assunto: Re: [GRASS-user] bypassing the "arrowhead" problem of ps.map
Hi Hamish,
Le dimanche 03 mars 2013 à 13:22 -0800, Hamish a écrit :
Vincent wrote:
> maybe among you some people deplore the absence of easy solution in
> ps.map for line-end symbology, e.g. adding arrow heads to lines.
my poor knowledge of C dissuaded me to investigate in this way...
another self-hack possibility is to extract the start/end nodes to a
points file, then, maybe with the help of v.generalize, find the trend
direction (azimuth) at those two ends, and use vpoints or point
instruction there with appropriate rotation angle.
in a way (except recourse to v.generalize), this is what is performed in my stack of commands.
You'll probably need to make your own symbol, but that's pretty easy.
Here again it points to the power of ps.map. With a couple of postscript lines you can do nearly whatever you want.
Yours,
Vincent
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