stephen sefick wrote:
I have orthophotos that are in .sid format. I have converted them to
tif/tfw with the lizardtech software, but they have black borders. I
would like to remove these borders so that I can use the orthophotos
in a tiled mosaic of the whole area of interest. Any thoughts
I frankly don't get it: the data I downloaded is definitely sort of a
database, with each entry split among 4 differents files:
entry.freelist,.gdbindexes,.gdbtable and .gdbtablx. ogrinfo deosn't
seem to recognise any of the different files (but maybe I don't have
the right driver compiled into
Hamish wrote:
I may be dreaming, but I seem to remember writing a script to do that
some time ago (maybe March?) to crop the blank edges off the NOAA BSB
format nautical charts. try searching the archives and wiki.
see also the image classification modules, r.mask, and g.region zoom=.
Hi John,
I want to try your module with my srtm data, but I always get out of memory
messages. Maybe I am just to ambitious with my region settings :-) , but could
you provide some hints on general memory usage?
Or should I program a script for a moving window so I get smaller regions? Are
Hi Frank
Frank Broniewski wrote:
I want to try your module with my srtm data, but I always get out of memory
messages. Maybe I am just to ambitious with my region settings :-) ,
How big a region are you using? Have you had any luck testing it on a
smaller region?
I have only ever run out
Dear all,
I would need to calculate the resulting percentile map from a large number
of maps (1), obtaining the values for 5 and 95 percentile for each
pixel. Is there any function in GRASS?
I did not find anything in mapcalc. Other functions such r.quantile or
r.univar provide a summarising
Hi!
I've made a simple oldnewclass.csv table and then:
db.in.ogr --o oldnewclass.csv out=oldnewclass
db.select oldnewclass | more
old|new
1|1
2|2
3|274
4|274
...
g.copy vect=Montseny07,delme
v.db.join delme col=VALUE otable=oldnewclass ocol=old
ERROR: JOIN is not supported for tables stored
On Wednesday 16 September 2009 12:47:52 John A Stevenson wrote:
Hi Frank
Frank Broniewski wrote:
I want to try your module with my srtm data, but I always get out of
memory messages. Maybe I am just to ambitious with my region settings :-)
,
How big a region are you using? Have you had
Dear GRASS users,
I was wondering whether you could tell me if there is an
implementation of the command r.le.dist in the most recent versions of
GRASS (6.2,6.3,6.4) as it seems that this function has been suppressed
in the new suite of programs for landscape analysis (r.li).
thanks in advance!
Hello Alessandro,
I have some modules which analyse the distance between patches, however I
haven't written the man-pages yet, but will do it soon and add the modules to
the svn.
I can send you the source code offlist and would be happy if you can give it a
try and report any problems.
So, I found the odd crs that the orthophotos were in used gdalwarp to
reproject the tiffs then wrote a script to bring all of the
orthophotos in and reclassed 0 as NULL, and poof the black border
disappeared. Now I need to combine the red, blue, and green images
into one single orthophoto for
Did i.composite get replaced by something?
--
Stephen Sefick
Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted the
annoying little problems
On Wed, Sep 16, 2009 at 7:07 PM, stephen sefick ssef...@gmail.com wrote:
Did i.composite get replaced by something?
It was renamed to r.composite:
http://grass.osgeo.org/grass64/manuals/html64_user/r.composite.html
See also here:
http://grass.osgeo.org/wiki/GRASS_Module_Porting_List
Markus
Hi,
I'm using a grass script of my own (say script.sh) which is located in a
separate directory pointed by GRASS_ADDON_PATH.
However, the graphical interface provided by g.parser does not show the
corresponding manual page.
I have a script.sh.html in the same directory. ¿Should I put a copy in
Now I need to combine the red, blue, and green images into one single
orthophoto for display.
just use d.rgb or GUI equivalent.
If you must, use r.composite to combine them but it is recommended to not
do that if you can help it due to ...
What would you use the three color bands for
Hi,
I'm trying to simplify a vector map of areas describing countries.
I tried to use v.generalize with the various proposed simplification
method but the result is completely wrong as soon as I set a high
threshold value(actually, it works only with very low values) The
resulting map is
v.generalize does a great job with simplifying or smoothing lines, but
areas either disappear or attribute attachment changes. That's why I
would recommend not to use v.generalize for areas. v.clean tool=prune
behaves the other way around, areas are always preserved, with attribute
attachment,
Hi,
Vdigit doesn't work yet on my system.
When I launch vdigit, the Grass GIS display turn right in the vdigit
window. But when selecting a vector map, i get the message :
Traceback (most recent call last):
File /usr/local/grass-6.4.0RC5/etc/wxpython/gui_modules/t
oolbars.py, line 1071,
Hi,
It's my first post here. I am quite happy to join the powerful world of
GRASS. My first good impression is with the 'v.drape' process.
With the 'v.out.ogr' command, I get an issue with the dsn parameter.
I tried various syntax for dsn path filename but none works fine.
v.out.ogr -e
On Wed, Sep 16, 2009 at 9:40 PM, Markus Metz
markus.metz.gisw...@googlemail.com wrote:
v.generalize does a great job with simplifying or smoothing lines, but areas
either disappear or attribute attachment changes. That's why I would
recommend not to use v.generalize for areas. v.clean
afaik,
it should be:
v.out.ogr -e input=hidr...@permanent dsn=C:/tmp/hidro3D
On 9/17/09, Vincent Blanqué vincent.blan...@oriondata.cl wrote:
Hi,
It's my first post here. I am quite happy to join the powerful world of
GRASS. My first good impression is with the 'v.drape' process.
With the
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