Or you could use v.distance from GRASS (either through Processing or the
QGIS-GRASS plugin):
http://grass.osgeo.org/grass64/manuals/v.distance.html
With the “output”-option it produces lines.
Cheers
Stefan
From: qgis-user-boun...@lists.osgeo.org
[mailto:qgis-user-boun...@lists.osgeo.org] On
You can use the Georeferencer to do this. You can load the georeferenced
image into QGIS and while taking control points take coordinates from map
canvas. You can check out this step by step guide to know the process.
http://www.qgistutorials.com/en/docs/advanced_georeferencing.html
-ujaval
On
Il 03/09/2015 10:38 AM, emmexx scrisse:
I'd like to know if it is possible to load non geographical data from a
remote source to use them for a join with another layer.
The documentation has reference to a SPIT plugin that I don't find in my
version of qgis (2.6 linux slackware). I'd prefer not
If your data is in a Spatialite or a Postgis database, it's quite easy to
achieve what you seek.
All you need to do is create a SQL query similar to this one in DB Manager:
SELECT
a.gid as dep_id,
b.gid as dest_id,
ST_Distance(a.geom, b.geom) as distance,
ST_MakeLine(a.geom,
Dear Q-GIS users, I want to work on image to image geo-referencing e.g.
ASTER to Topographical Sheet) for my research work, but I cant's get the
option for it. Actually, I have an ASTER DEM image and I want to register
it according to my base map. Please guide me for it. Thank You in advanced.
When the box has focus just press ESC it will close the panel.
- Nathan
On Tue, 10 Mar 2015 at 19:58 Frank Sokolic soko...@worldonline.co.za
wrote:
Hi all,
Does anyone know how to switch off the QGIS Commander? I can turn it on
using the Processing Menu or the Shift+Ctrl+M shortcut but
It allows GRASS to be activated in the Processing options, but gives the
dependency error if I actually try to run any of the tools.
The OS X console logs this when this failure happens:
10/03/15 16:42:05.779 QGIS[3835]: modalSession has been exited prematurely
- check for a reentrant call to
Does it allow you to turn on GRASS in Processing? If so, you can see what the
actual error is in the algorithm output when you try to run one if you turn on
the Processing option to leave windows open when done.
On Mar 9, 2015, at 11:47 PM, Howard Frederick simbama...@gmail.com wrote:
I mean the Processing log for the algorithm. Turn on that Processing option
for keeping algorithm windows open, then you should hopefully see the details
of the error in the algorithm window. You might not since I'm not sure the
dependency check shows up there.
Do Processing algorithms from
The permissions are correct - and don't forget the other part of this
mystery, that if I use QGIS with a different user, GRASS works just fine!
This implies there's something wrong with settings or prefs for my user.
I've deleted/reinstalled QGIS, removed ~/.qgis2, removed the preferences
.plist
Il 10/03/2015 21:36, Raymond Nijssen ha scritto:
It was just a python console script but I rewrote it to work as a
processing script. I also add the nifty idid check which I stole from
Alexander's sql example. :)
thanks!
--
Paolo Cavallini - www.faunalia.eu
QGIS PostGIS courses:
Hi Paolo,
It was just a python console script but I rewrote it to work as a
processing script. I also add the nifty idid check which I stole from
Alexander's sql example. :)
Regards,
Raymond
On 10-03-15 10:13, Paolo Cavallini wrote:
Il 10/03/2015 09:08, Raymond Nijssen ha scritto:
Hi
Processing algorithms for other providers work - tested R and SAGA at least.
The dependency error is thrown the moment I try to open any GRASS tool, and
the tool dialog never appears - so there is no opportunity to even try to
run any GRASS algorithm!
Error dialog:
Missing dependency. This
I need to generate the center location of a bunch of points.
Is there a tool in qgis similar to Mean center or Central feature function
in arcGis?
Central feature
http://resources.arcgis.com/en/help/main/10.1/index.html#//005p001500
Mean center
If the central feature is the nearest neighbour to the mean centre,
then distance matrix (vector- analysis tools- distance matrix)
could be used to find it. Distance matrix is exact for point
features. GRASS v.distance should be exact also for lines and
polygons.
On 10. mars 2015 20:30, Håvard
Mean center: What about
Vector- Analysis Tools- Mean coordinate(s)
On 10. mars 2015 20:07, steve.tout...@inspq.qc.ca wrote:
I need to generate the center location of a bunch of points.
Is there a tool in qgis similar to Mean center or Central feature
function in arcGis?
Central feature
One things that sometimes trips GRASS - executable permissions. The installer
is supposed to make sure GRASS is executable, because there were problems with
that in the past. Easy brute force method - delete QGIS and reinstall.
But it would be good to know if that is still a problem for some
Hi Joris,
I dont know about that plugin, but i would write a little script for
that like this:
# get active (point) layer as input
inputlayer = iface.activeLayer()
# create new memory layer for output
outputlayer = QgsVectorLayer(Linestring, distance_lines, memory)
outputprovider =
Il 10/03/2015 09:08, Raymond Nijssen ha scritto:
Hi Joris,
I dont know about that plugin, but i would write a little script for
that like this:
Hi Raymond,
would you mind adding this as a Processing sample script?
https://github.com/qgis/QGIS-Processing
All the best, and thanks.
--
Paolo
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