Is it possible to define an area to do the surface generation within? I see
there are options to define this with a simple box or drag on screen but if you
want to say use a country outline map as the boundary and do the interpolation
within this?
-Original Message-
From: Micha Silver
I have a map with lots of point data which I want to label. When switching on
labels lots of them end up on top of each other as some of the points are close
to each other. Is there a way of automatically spacing the labels out to avoid
overlap with a line going to the point from the label.
Doing what I want is easy in mapinfo as you just drag and drop the labels
individually and the line is automatically generated but I want to do it in
qgis.
From: Alister Hood [alister.h...@synergine.com]
Sent: Monday, October 01, 2012 10:18 PM
To:
The 'save as' command in qgis seems to strip out attribute data when creating
files of certain sorts such as .gpx and also gives problems with .kml where the
markers are not identified with any of the attributes. Are there any
workarounds for these problems?
More detail on the .gpx issue, it
I second this as a good idea as I have often wanted to draw lines of a
predetermined length. And even have tools like in drawing packages where you
can draw a line or other shape of set size and be able to duplicate and move
around and rotate to the location you want. Useful for designing
Slightly off topic but how do graph databases such as Neo4j work with spatial
data and can you connect to this kind of database with qgis or is the structure
completely different or have I completely misunderstood things? As someone who
knows nothing about graph databases it would seem they
Just tried to install qgis on Samsung galaxy s3. It seemed to install ok but
not sure how to get plugins and in particular the openlayers plugin, I see
there is an issue listed on openlayers on android qgis but its now closed so I
assume its fixed? Also not sure how to get gps tracking. Is
I have tried with plain .csv files of points or shapefiles and both give the
error in matching up OSGB and WGS84 coordinates for the same point. Basically
the points are shown several metres apart when you allow on the fly
transformation, error on all the same amount and in same direction.
Thanks for the suggestions.
First the 'save as' .csv is indeed broken, infact I have never got it to work
under windowsxp with any file of any size even though 'save as' works fine
saving to other formats. Error message Export to vector file failed. Error:
creation of data source failed (OGR
Thanks very much, I have tried this and it works fine.
-Original Message-
From: Bernd Vogelgesang [mailto:bernd.vogelges...@gmx.de]
Sent: 22 June 2012 13:30
To: qgis-user@lists.osgeo.org
Cc: m.e.d...@open.ac.uk
Subject: Re:any ideas how to get data from attribute table out of qgis
I can
When there are more than 65000 rows in the data? On windowsxp. Have tried
save as .csv but this is still broken, have tried plugins that are supposed to
save in excel format but they don't work with this size of data, have tried
selecting chunks of the attribute table but this does not seem
Not sure if this is part of Feature #3019 but I can't persuade qgis to display
any of the data e.g. name of the feature or point number when the data are
saved as a .kml file and opened in google earth. Is there a solution or work
around for this issue? All the .kml file shows in google earth
When designing field experiments having the ability to duplicate and rotate or
move around a set of points or other features would be very useful.
From: Micha Silver [mailto:mi...@arava.co.il]
Sent: 30 May 2012 08:41
To: giovanni.man...@faunalia.pt
Cc: agustin.l...@ictja.csic.es; qgis-user
Very simple question, how to add a column to a table showing the distance
between two sets of points in the table (they are both in lat long wgs84
coordinates). There are quite a number of calculations that can be done on a
column but distance does not seem to be one of them. There are
Is it possible to geocode a list of addresses? I have the geocoding plugin
loaded and it works (api key sorted out) but not sure how to get the list of
addresses into qgis as they have no x,y location info at the moment. Am sure
this question asked before but could not find the answer.
Dr
7m error often associated with the approx. transformation that consumer grade
gps units (or many of the coordinate conversion websites) carry out compared to
the full OSTN02 definitive transformation. If possible should always use the
OSTN02 transformation.
Below are a few examples of points
I would like to put some transect lines across a stream so would like to draw a
line a certain distance long e.g. 50m, preferably with markers at each 10m
along it then position the transect across the stream. There are many
transects to be positioned along the squiggly stream and they all
If you are interested in accuracy of 10m or better then just check how the data
are getting in, if its all coming from gps as wgs84 lat long then hopefully the
conversion and plotting will be ok but if you are relying on the gps's version
of the os grid then its liable to have errors often in
there is a very nice (C++) plugin from Gis-Lab
http://gis-lab.info/qa/qgis2google-eng.html
that need qgis-master to work. Unfortunately all my late tries to make it work
are resulting in a crash when activating it.
Yes it causes qgis to crash when I try it to
-Original Message-
Is it possible to produce a .kml file that will display on google earth in a
similar way to in qgis, for example keeping the style and labelling of the
points? I have exported .kml files from qgis and viewed them in google earth
on a mobile and this works fine but the points are just shown as
I would like to set the size of point marker in qgis to be controlled by its
data i.e. if the value is larger then the marker itself is larger. This
appears to be possible in e.g. new symbologyadvancedsize scale field, also
possible to get to this other ways. However its not clear how the
When looking at the attribute table I want the first column in numeric order
(they are the reference number of a set of features and I want to match by this
column in a spreadsheet to other data and if they are in order this is easier,
can do it without them being in order but more of a pain).
Thanks very much Ronnie, I have tried it again and now works so looks like a
bug with an easy work around, just use EPSG:3857 instead of 900913.
-Original Message-
From: Lassche, M.R. [mailto:m.r.lass...@vu.nl]
Sent: 02 March 2012 08:22
To: M.E.Dodd; 'Andreas Neumann'
Cc:
Some more details.
1. I have large 60mb .tiff (generated eventually from yesterdays .dxf file that
I was trying to geocode and have given up for moment but will return to). The
.tiff has transparency.
2. using:
QGIS version 1.9.90-Alpha QGIS code revision 9a9ab73 Compiled against Qt 4.7.1
I have a building and roads plan done in a cad package and want to accurately
georeference it and deal with it in qgis. I can choose fixed points on the
.dxf file and get accurate gps readings for these points but am wondering how
to do the conversion in qgis? If it were a raster image then
This looks exactly what I want:
You mean like this?:
http://underdark.wordpress.com/2012/02/25/light-styles-for-osm-layers-in-qgis/;
Have downloaded the .qml files but now not sure how to proceed. I have osm via
openlayers but that does not have properties so went to 'style manager' but
that
Thanks for the suggestion, I tried putting the opacity value here:
var osm = new OpenLayers.Layer.OSM(
OpenStreetMap,
http://tile.openstreetmap.org/${z}/${x}/${y}.png,opacity:0.5
{
In the openstreetmaps .html but that made the map vanish altogether so I
Excellent, works fine, just what I wanted, thanks.
-Original Message-
From: Richard Duivenvoorde [mailto:rdmaili...@duif.net]
Sent: 28 February 2012 10:24
To: qgis-user@lists.osgeo.org; M.E.Dodd
Subject: Re: [Qgis-user] RE: Qgis-user] openlayers layers without properties is
it possible
Is it possible to change the display of e.g. openstreetmap background layer, I
would like to plot data over this but its rather aggressive in the background
so I would like to grey it down.
--
The Open University is incorporated by Royal Charter (RC 000391), an exempt
charity in England
There are a number of posts about 64 bit windows 7 and qgis but I can't see
what the current situation is, some people seem to be using it fine. I have
just tried to install onto windows 7 64 bit machine and it refused when using
the OSGEO4W installer, is there another way of doing it?
--
Have just tried this a couple more times and now it works, it seems one error
was due to network and caching, other one was due to not having right bits
installed along with main program dependencies or something missing (I am doing
advanced install 1.9.9 not the standard version 1.7.3).
The features are already there in qgis and Giovanni Manghi was very helpful
yesterday in helping me to find where they are.
In version 1.9.9 they are slightly buried away, you have to go to the plugin
manager and specifically switch on the 'spatial query plugin'. This is loaded
by default in
Seems a very obvious thing to do but could not find it in qgis. I have a set
of points and want to identify (and eventually save as .csv) some of the points
using a polygon in a shape file i.e. not a hand drawn one which I know you can
use to select points.
--
The Open University is
When using the point sampling tool is it possible to get the label as well as
the category number for each point sampled on the underlying raster image? I
have the category numbers and could then match these to the labels in an
additional step outside the gis but it would be much easier to do
Is it possible to use qgis on smartphone with android 4? Phone such as galaxy
nexus2, seems ideal with the large high res screen and fast processor.
--
The Open University is incorporated by Royal Charter (RC 000391), an exempt
charity in England Wales and a charity registered in Scotland
This is a general question about wms but I am using qgis. Have got the map
data via a url for the wms (via getCapabilities) but how to then also get the
legend saying what each of the categories(colours on the map) mean. In some
instances there are .qml files that the wms service has provided
I see there are various openstreetmap services such as nominatum/mapquest but
don't really understand how these might interact with qgis or if it would be a
separate operation outside of qgis. Would be much nicer inside qgis so you
could easily set up table to get the different bits of reverse
I would like to make point markers of varying sizes depending on their value
i.e. if it has a value of 10 then it would have a larger marker than if it had
a value of 1. This seems to be sort of possible via new
symbologyadvancedsize scale field. However it only allows the values
themselves
There are some plugins that will sort of do this but not found something that
allows easy click on a point to immediately see all the information about that
point, then click on another one to see info about that point. An example, a
map with thousands of points(each with a code number and lat
If you have a map and you want to plot dots on it, each dot representing some
quantity then what happens if you have several dots at exactly the same
location i.e. the coordinates are identical. Some possibilities are (a) just
show the 'last' dot assuming qgis plots the dots one after another
Just tried it on htc wildfire mobile phone but did not work, parse error (the
download worked but program did not run). Is there a limit on what its likely
to run on?
From: Duarte Carreira [mailto:dcarre...@edia.pt]
Sent: 24 August 2011 09:37
To: Marco Bernasocchi; qgis-developer; qgis-user
Does this mean it is likely to work on smartphones as well or only tablets?
From: Marco Bernasocchi [ma...@bernawebdesign.ch]
Sent: Wednesday, August 17, 2011 12:47 AM
To: qgis-develo...@lists.osgeo.org; qgis-user; OSGeo Summer of Code
Subject: [Qgis-user]
Want to label the grey (or colour) scale but can't see a way of doing it
reasonably.
--
The Open University is incorporated by Royal Charter (RC 000391), an exempt
charity in England Wales and a charity registered in Scotland (SC 038302).
___
I have the 1-band raster colour table plugin which has some very nice options
for colour maps however the greyscale raster I am using has very large negative
values to denote areas where there are no data compared to a normal range of
say 0-40 for the areas were there are data. Is there a way
I have various layers of points from various shapes of sampling (not a regular
rectangular grid) and want to interpolate each of them to produce a set of
raster images. In previous GIS I have used this was generally a matter of
making a boundary then telling the gis the points layer and extent
Never sure where to send in bugs.
Getting message Export to vector file failed. Error: creation of data source
failed (OGR error:) when trying to save as .csv from a shapefile layer.
Exporting to csv has worked before but just suddenly stopped working half way
through a session when it did
Have done this for a points layer but polygon layer does not seem to work.
The google satellite is via openlayers plugin and displays fine. The shapefile
displays fine in its own crs but when added to the project it does not show up
and refuses to 'zoom to layer extent'. when the shapefile is
I've had a whole range of similar problems with a large database of publically
entered records from many countries, it contains all sorts of strange
characters (in many languages) including most characters you'd think of as
possibilities for column separators. Rather a nightmare to tidy up and
I should have said half was entered via the web and the other half came in via
a range of different spreadsheets, some of which of course used commas instead
of decimal points in numeric fields. Only about 10,000 records by about 20
fields so was possible to look at by hand to some extent.
Noticed openlayers plugin stopped working some time ago but even after
reinstalling it still does not work in qgis1.6 or 1.7. Had used it quite
happily with previous versions of qgis and indeed these versions.
An error has occured while executing Python code:
Traceback (most recent call
Polygons created in qgis in osgb 1936 but want to display in google earth, how
best to go about this. With points its straightforward to convert from
osgb1936 to wgs84 using external converter then produce a kml in qgis but don't
know how to do it with shapefiles.
--
The Open University is
No this does not work, it simply gives all positions as lat 1 degree long 1
degree i.e. plots all the data in the middle of the ocean.
However if you convert from ordnance survey to lat long outside qgis then bring
the data back into qgis telling it that its wgs84 then create the kml then it
Is there any update on this, has the toolbox been produced for qgis or have
bits of it been incorporated anywhere?
-Original Message-
From: qgis-user-boun...@lists.osgeo.org
[mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of John C. Tull
Sent: 22 November 2009 02:54
To:
Thanks for this. I've tried a few different ways as suggested on that page but
not sure I am doing it right as nothing is obviously appearing, at the moment
am trying:
OTB module is available as a separate file , the installation is reduced to
the unpacking and transfer dll-library in the
When attempting to start qgis I get this error and some of the menu items are
obscured when qgis does eventually start. Have deleted the program and
downloaded and reinstalled from scratch but still get the error. Have been
using qgis for a couple of years, using windows xp and qgis 1.6.
That's fixed it, thanks.
Mike
-Original Message-
From: razmjoo...@faunalia.co.uk [mailto:razmjoo...@faunalia.co.uk]
Sent: 26 January 2011 16:18
To: M.E.Dodd
Cc: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] bug
Hi there
have you tried to delete this folder:
C:\Documents and
I can find their website and the full Monteverdi program but can't work out how
to install the qgis plugin, any suggestions?
--
The Open University is incorporated by Royal Charter (RC 000391), an exempt
charity in England Wales and a charity registered in Scotland (SC 038302).
installed 1.5 down the osgeo4w route and now can't find an uninstaller to get
rid of it before installing 1.6. On another machine i had installed 1.6
without removing 1.5 and things got all screwed up so had to manually remove
1.5 (just by deleting folders which is not a good thing to do since
Is it possible to put tick marks or similar round the edge of a map to indicate
lat long grid without actually having a grid on the map? I.e. just an
indication of where the major grid lines would go but not actually overlaying
them right across the map.
--
The Open University is
I have two raster layers which have same grid cell size but different extent
and want to carry out some calculations to produce a third layer e.g. with the
sum or difference of the other two layers. Is this possible in qgis?
--
The Open University is incorporated by Royal Charter (RC 000391),
Any ideas on when 1.6 will be released, planned date 7 Nov 2010? So within the
next couple of weeks?
-Original Message-
From: Marco Hugentobler [mailto:marco.hugentob...@sourcepole.ch]
Sent: 08 November 2010 10:38
To: qgis-user@lists.osgeo.org
Cc: M.E.Dodd
Subject: Re: [Qgis-user] how
Is it possible to get values from a WMS layer e.g. load WMS raster layer from
NASA or some other server then have your points overlayed and use the point
sampling tool? This would work if you have loaded your own raster layer but
with WMS layers it does not seem to work is this only possible
Anyone got this potentially very useful plugin tool to work without it crashing
qgis? Have tried under various versions of qgis 1.3-1.5 on various different
windows xp pc's and always causes qgis to crash just after seeing the profile.
--
The Open University is incorporated by Royal Charter
On qgis 1.4 windows 'point sampling tool' plugin used to work fine and I found
it very useful. However now it crashes and freezes the computer only way out
being to kill off the tool and qgis. Not sure if this is because I was using
smaller files previously or qgis 1.3 previously. Now I am
See replies to each point:
* Display the GRASS region - you should see the red rectangle - then
verify that the vector and raster layers are within that region (again
from their info tables).
Does the whole of each layer have to be within the red rectangle? It certainly
was not when I started
Came in this morning and was just about to post back to list saying how
everything was fixed and working. But then started up qgis, did a file, 'open
recent project' to load up yesterday's work and the raster layers did not show,
they were listed with a cross by them but nothing on screen even
http://www.amanita-photolibrary.co.uk/Untitled-1.jpg
I've stuck a screenshot at the above location on my personal website, I will
delete it eventually to stop things getting cluttered up, is there a more
suitable place for these screenshots?
Anyway, it shows the grass versions of the raster
http://www.amanita-photolibrary.co.uk/Untitled-2.png
humm, there does not seem to be any data there
-Original Message-
From: Micha Silver [mailto:mi...@arava.co.il]
Sent: 15 April 2010 12:05
To: M.E.Dodd
Cc: 'qgis-user@lists.osgeo.org'
Subject: Re: [Qgis-user] averaging raster grid
What
I have a raster digital elevation model and want to overlay a coarser grid
vector layer and average the very detailed raster to give the average values in
each of the grid squares specified by the vector grid, is this possible? The
existing vector and raster tools hint at doing some of it but
Is it possible to find the nearest point in one table compared to points in
another table BUT without using the same point in the second table more than
once.
I have one table of points and want to find the nearest point in another table,
the trouble is that some points in the second table are
Is it possible to use google maps or the MS equivalent in qgis, presumably not?
The Open University is incorporated by Royal Charter (RC 000391), an exempt
charity in England Wales and a charity registered in Scotland (SC 038302).
___
Qgis-user
Any chance that the color ramps could appear when you add a legend in print
composer, at the moment there is just a block that says legend without actually
giving the legend itself.
Also in print composer the black lines round each grid square on a vector grid
become much thicker than they are
How to achieve a nice gradient of colours in vector or raster images? This
seems to be quite a big difficulty in qgis whereas other programs have it built
in, am I just doing something wrong or do they (almost) not exist. E.g. you
have a digital elevation model and want to use suitable
Is there a way of comparing the data in two raster images (actually two DEM's)
that cover the same area but at different resolution?
So far I have created a grid of points and used the point sampling tool to get
the value from the two rasters but this is a long way round, is there a direct
way
Interesting that someone says contour plugin works via windows standalone as on
my xp machine via windows standalone it won't work with this error:
The process failed to start. Either the invoked program is missing, or you may
have insufficient permissions to invoke the program.
-Original
Is it possible to export (or save) data from qgis as a simple text file, for
example I deal with a lot of point data and after doing various things such as
finding the attributes of each point on a raster image within the gis I then
want to then get this data out as a simple text file so it can
Thanks, yes I had not thought about opening the .dbf file doing that makes it
easy to use with all the other programs
From: qgis-user-boun...@lists.osgeo.org [qgis-user-boun...@lists.osgeo.org] On
Behalf Of Alex Mandel [tech_...@wildintellect.com]
Sent:
Thanks, I've tried what you suggest and get the same further bugs - it
complains about applying the style to vector layors even though you have not
told it to apply it to vector layors. But the biggest issue is that it does
not actually apply the change to the map itself so its not working at
Is it possible to group together raster tiles so that you can set the
properties of all of them together rather than laboriously having to go through
to each one individually to set the properties?
The Open University is incorporated by Royal Charter (RC 000391), an exempt
charity in England
I have not tried this, will do (will also look at earlier suggestion of
combining them in Grass), however it will still be very slow if you have 50
raster tiles as I have, would have thought it a very obvious thing to want to
have all tiles treated the same easily.
For example the tiles are
Thanks for the suggestion it would seem to be just what I want looking at their
video, but I can't seem to get it to apply the style that I have created to all
the layers, the apply style button is greyed out so I can't actually select a
style to apply. I wonder if there is a difference here
I've now been able to open the data in VCDAT (Xterm on mac) and it is the
correct way up, so possibly a bug in the way qgis/gdal (on windowsXP pc)
handles .nc files. The files are quite large 1gb+ if this makes a difference.
On Tue, Jan 12, 2010 at 11:04 AM, M.E.Dodd m.e.d...@open.ac.uk
Thanks for the replies on this one.
I am indeed looking at other tools to open netCDF files.
However I just noticed that in qgis 1.4 there is a .nc option (well two
actually presumably different formats) when opening a raster image. So I tried
it, unfortunately the file opened upside down and
Is it possible to open .nc files and manipulate them in qgis? If so, how?
It seems GDAL can deal with this format and qgis uses GDAL but I don't really
understand how it all interacts.
I would like to open some large gridded met data files, produce means of the
values for each grid square
I have been trying for months to find a way of selecting the records of a land
based species that have accidentally been recorded in the sea i.e. not on one
of the land polygons. I've tried qgis and mapinfo and not been able to find a
way of selecting records that are NOT on the land. Have
I have some maps surveyed in non-earth coordinates, local small scale area but
accurate within that area. Now want to convert whole survey to a real earth
map. Can accurately survey a few points from the map to get lat long or
ordnance survey locations but don't know how to then convert all
Any suggestions as to how to operate the 'raster properties' dialogue to get
reasonable colours from digital elevation model tiles? They display fine as
greyscale images, they are in the correct place, you can adjust min/max values
and stretch contrast etc to get them looking ok but when it
Thanks very much for this.
I have now managed to get all of this working. Firstly I did the manual
download of the plugin, it did not work initially but then after restarting
qgis it did work and the plugin did just what I wanted.
Then later I got the proxies all sorted out, not particularly
Where is 'point sampling tool' as its not listed in the plug ins. I am using
qgis 1.3 mimas on windowsxp.
-Original Message-
From: qgis-user-boun...@lists.osgeo.org
[mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Marco Lechner - FOSSGIS
e.V.
Sent: 01 December 2009 18:44
To:
Thanks for the responses on how to match to points, however they raised a
second problem which might be a bug in qgis or at least need a work around.
That is, when I tried to find 'point sampling tool' it was not there and when I
tried to install it the repository was unavailable and when I
I have the GTOPO30 digital elevation model as a georeferenced raster in qgis
and a file of lat long coordinates I want to get the elevation of, how do I do
it?
The points plot out fine over the DEM, they are clearly matched up correctly
but how to get the value of the height out of the raster
Three questions from someone newish to qgis:
1. how do you put point data on a map in qgis. This seems to be the simplest
thing to do in most other gis systems but the most difficult in qgis or have I
completely missed something. E.g. I have a file of lat long coordinates or
ordnance
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