QGIS is a cross-platform GIS application licensed under the GNU General Public License.

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3
votes
1answer
112 views

WMS not viewing in QGIS

I am trying to import WMS from geoserver link to QGIS 2.8.4 & the latest 2.12.1: http://geoportal.asig.gov.al/Services/host/host.ashx?url=http://localhost:8080/geoserver/asig/wms& QGIS get ...
3
votes
2answers
4k views

How to fix “The entry point for the procedure sqlite3_open_v2 cannot be found in the dynamic link library sqlite3.dll”

Translation: Hello, I have a problem installing version 1.0.8. The following error message appears: The entry point for the procedure sqlite3_open_v2 cannot be found in the dynamic link library ...
3
votes
2answers
285 views

Combining MS Office with GIS

I would like to incorporate MS Office into my GIS program. I have been using QGIS and was wondering if this would be possible? I am trying to create a one stop shop for my staff to be able to ...
3
votes
2answers
6k views

How to export a raster layer for external processing?

Is there a way to export all values from a raster to for example a cvs or other textfile or dbf or xls and later import (changed) values from that file back into the raster? For vector-files this is ...
3
votes
1answer
178 views

QGIS 2.6 summarizing area (m²) for current atributes

If I have a code for each polygon and I have counted the area in m² for each of them (all this information is in single columns). How can I summarize these areas by codes (for example summarize all ...
3
votes
2answers
2k views

How to set the Identify Feature tool in QGIS 2.4?

The Identify Results window does not appear when using the identify feature tool in QGIS 2.4. I guess there's a check box somewhere I need to check/uncheck, but the settings of the tool changed ...
3
votes
2answers
14k views

How to fix python ImportError: DLL load failed: The specified module could not be found?

During import fiona, I am getting following error. Error is different from other user so I asked this question may be it is repeated. import fiona Traceback (most recent call last): File "D:/...
2
votes
1answer
1k views

Problems with Google layers plugins

I currently use Quantum GIS 1.7.4 at work and I have trouble to open Google layers extension. In fact, when I start QGIS 1.7.4 the following message appears and I cannot use Google layers extension. ...
2
votes
2answers
400 views

Why does the buffer take up whole screen?

I am trying to create buffers around the Hurricane Sandy path I created in QGIS (points are lat/long). I have both points from each day she was tracted and the line I created from it with Points2One....
2
votes
1answer
123 views

Merge multiple bus stops with same name

my question is similar to this one, but it's not answered sufficiently: How to merge points (bus stops) in QGIS manually or programmatically? I have OSM-transit data with bus stops. Some stops have ...
2
votes
1answer
108 views

Create points symbology with more than one parameter

In QGIS i would like to create symbology for points layer where the symbology will take into account more than one parameter (currently two). i.e.: My points layer has street names and house numbers ...
2
votes
1answer
1k views

How do I project a Azimuthal Equidistant global map into a circle in QGIS?

I'm fairly new to QGIS/GIS stuff in general, so I apologize if this is too simple of a question, and I'm just bad at finding my answer. I have a shapefile of all the countries in the globe I ...
2
votes
1answer
228 views

How to apply the same style to different columns?

For many of my datasets I have the same imported data duplicated numerous times, each iteration displaying the data values for a different column (in my case it's fish catch weight per gridded cell ...
2
votes
1answer
2k views

Does QGIS run on Windows Surface with Win RT OS?

I was wondering if anyone has had any success running QGIS on the Windows Surface tablet? Specifically with the Windows RT OS.
2
votes
1answer
417 views

How to fix “Couldn't load plugin …” and “ImportError: No module named …” in QGIS plugins?

After installation of Quantum GIS I tried to use Table Manager Module, but I can't do it. Here is the message: Nem tudom betölteni a 'tablemanager' modult innen: ['C:/PROGRA~1/Quantum GIS Wroclaw/...
2
votes
1answer
824 views

QGIS ->ArcGIS Server configuration possible?

Is it possible to connect a QGIS Desktop 1.8.0 to an ArcGIS Server 10.0 ? and of course publish services on it?. The configuration would be like this Quantum GIS-> ArcGIS Server 10.0 on Amazon EC2+ ...
2
votes
0answers
31 views

Unable to change band rendering style of rasters in QGIS 2.10.1 [duplicate]

Apologies, I am new to QGIS and there may exist a simple solution. I have multiple DEM raster files (.tif) added to my map. However, I am unable to alter any of the style options under the "Band ...
2
votes
1answer
931 views

Couldn't load SIP Module

After reinstalling QGIS, the desktop program runs but generates the python error "Couldn't load SIP Module Pythin support will be disabled" Because of this error, no plug-ins will load. I found a ...
2
votes
5answers
4k views

Where to find qgsaffine in the menu?

I installed the plugin qgsaffine but cannot find the entry in the menu bar. Where do I find this. Can anyone here help me with this? best regards desputin
2
votes
3answers
1k views

Rasterize line shapefile

I'm trying to convert a line shapefile to a raster image at QGis, but my attempts have been unsuccessful. I've tried to use Raster/Conversion/Rasterize and SAGA/Grid - gridding/Shapes to grid, but to ...
2
votes
1answer
48 views

Displaying layer after using QgsGeometryAnalyser?

I have already discovered this class, but I am confused. If I am doing a analysis on the current layer, I don't know why it is not displaying on the map. lyr =iface.mapCanvas() layer = lyr....
2
votes
2answers
159 views

Generating new shp files according to attribute in QGIS

I know that it is possible to color a vector map by attribute. I separated a map into 4 colors based on an attribute and now I want to generate a new map for each color. Is there a way to do this in ...
2
votes
2answers
769 views

Automating the production of GPS-compatible map tiles from georeferenced raster maps

I have a set of TIFF maps that I want to load onto Garmin GPS 62s units. The maximum size for each tile on the GPS is 3Mb and less than 1 million pixels. I manually produced one tile, following this ...
2
votes
2answers
213 views

How do I count the matching 'many' entries in a one-to-many relationship?

I have a simple SHP line file - where each line has a unique reference. I have a related text csv file using the same reference, in a one-to-many situation. I need a map with the lines (in the 'one' ...
2
votes
0answers
89 views

QGIS does not display all Features of Layer and behaves weird instead

I have a weird problem with QGIS trying to load a Layer from a Postgis Database When I open the Layer from Postsgis I have two choices: Method one: Either, I use the Panel "Browser", where I can ...
2
votes
2answers
1k views

How to determine which polygons, if any, points fall within?

I am a amateur at GIS and need some help. I have a group of shapefiles of various areas and an Excel spreadsheet of addresses I have geocoded to points. I want to determine whether each point falls ...
2
votes
1answer
833 views

“Node tool: could not snap to a segment on the current layer” message

I have a strange issue. Editing a layer with node tool I get always the following message: "Node tool: could not snap to a segment on the current layer." This error happens to me even with a fresh ...
2
votes
3answers
2k views

Qgis Python code library documenation.

I'm looking for python documentation for specific operations in the Qgis python console. I know there is no suggestions simular to Arcpy but I would like a pure list of operation code lines as "layer....
2
votes
1answer
189 views

Move label in QGIS?

I cannot figure it out to move Labels in an QGis-Layer. I added two columns (x,y) and set these columns as Data-defined-Position in the layer-properties as descriped in some (older) threads (e.g. How ...
2
votes
1answer
939 views

How to develop c++ standalone QGIS C++ Application

I want to integrate QGIS in QT\C++ application. I try to write basic C++ apllication to render map and build it using MSVC 2010. class PostGisViewer: public QMainWindow { public: PostGisViewer(): ...
2
votes
1answer
1k views

How to create a QGIS action which copies features between layers?

i tried (i never tried before...) to write a simple python code like action in QGIS on my "XXX" vector layer that: open a layer "YYY" copy the selected feature on my "XXX"layer paste the selected ...
2
votes
1answer
428 views

How to link my QGIS plugin main class to mouse events from a custom Tool?

I Have two files one is mouseevent.py and the other one main.py. class MouseClick(QgsMapTool): canvasDoubleClicked = QtCore.pyqtSignal(object, object) def __init__(self, canvas,layer,...
2
votes
2answers
2k views

QGIS Raster Calculator: Need values to be set to 0 instead of no data

I have a landcover map with different values for the landuse options e.g. 190 for commercially used areas. Now I want to extract only these areas using the Raster Calculator with the expression "...
2
votes
1answer
4k views

Configure Orfeo Toolbox to work with QGIS v2 Windows 7 from standalone installer

I have asked this question on the QGIS mailing list, but have not yet had a satisfactory result. The QGIS manual at http://www.qgis.org/en/docs/user_manual/processing/3rdParty.html is confusing about ...
2
votes
1answer
436 views

How can I solve 'Handle bad layers' error when using OpenStreetMap in Qgis?

I can easy download Portion of maps from OpenStreetMap, save them etc. Once I reopen the same map I get a message that says "Handle bad layers" for all the OSM files. What I am doing wrong?
2
votes
2answers
202 views

One-to-many join in QGIS

I am looking for a possibility to make a one-to-many table-join in QGIS. I have a shapefile with postal codes and would like to join them with survey results (more than one). In other words, there ...
2
votes
2answers
2k views

How to install OpenLayers plugin in QGIS1.8

I am using QGIS 1.8.0 on Windows 7 (32-bit) but am unable to install the OpenLayers plugin. The Python plugins menu does not include OpenLayers on the plugin list. Can it be somehow added manually?
2
votes
1answer
2k views

Getting polygon shapefile node coordinates and point order

I am trying to get the coordinates of each node of a polygon in QGIS. What I basically did is use the following tools: Vector -> Geometry tools -> Extract nodes Vector -> Geometry tools -> Export ...
2
votes
1answer
102 views

QGIS Print Composer - Display Symbols for Empty Classes?

I am working on a map of mortality rates for several racial/ethnic groups and I have created custom classes to encompass the rates instead of the QGIS classes created through its various modes. This ...
2
votes
2answers
599 views

How to use OS Terrain 50 in QGIS

I am new to GIS and I wish to perform view shed analysis of wind turbines from a DEM. I have downloaded OS Terrain 50 and the data is contained within numerous zipped folders. I am using a Mac with ...
2
votes
0answers
42 views

Set Snap Mode with PyQGIS

I am trying to set snap mode within QGIS plugin. So far, I have tried: QgsSnappingUtils().setSnapToMapMode(QgsSnappingUtils.SnapAdvanced) and QgsSnappingUtils().setSnapToMapMode(2) without ...
2
votes
2answers
3k views

QGis 2.0.1 mapserver extension missing

I tried to export my Qgis projects to mapserver, using RT mapserver extension, because there is not any other extension in my version of QGis.(QGis 2.0.1 Dufour on ubuntu 12.04 LTS). After installing ...
2
votes
1answer
1k views

How to make GRASS and SAGA tools capable to use in QGIS?

I installed QGIS, GRASS and GDAL by OSGeo4w package, and as I finish the installation, I want to use GRASS tool, I face this problem: But I already installed GRASS and SAGA, how to make those tools ...
2
votes
2answers
259 views

How to display multiple attributes in a QGIS Composer legend?

I have a polygon layer which has a number attribute and a text attribute. When I make a legend in the composer, it automatically chooses the number to display while I would like to have both the ...
2
votes
1answer
765 views

Delete duplicate geometry in postgis tables

After - I dont know what happend - all my entry's in my postgis tables are doubled! I tryed that to delete them but it does not delete any/all duplicates: DELETE FROM planet_osm_point WHERE ...
2
votes
2answers
350 views

how to extract overlap from non-dissolved buffer zones in qgis 1.7.4

I have a shapefile with the inventory of all limetree in a region. I made a buffer around each tree. So, the place where buffers overlap each other is the best place to put beehives. Is there a way ...
2
votes
2answers
719 views

How do I fix an error starting QGIS 1.8.0 on Windows XP?

I note that the installation of qgis completed successfully. However, the log procedure returns this message: "...... Estrazione: wvhpgn.gsb Estrazione: wyhpgn.gsb Cartella di destinazione: C:\...
2
votes
0answers
504 views

How to use QGIS Accuracy Assessment plugin? [closed]

I am new user and i want perform accuracy assessment in qgis. I have 1 classified map and another for validation. I have installed the plugin. what am i doing after? Plugin: http://plugins.qgis.org/...
2
votes
1answer
88 views

Identify geographic location to points

I am quite new in QGIS and I really need your help. I have a map of Kenya divided into 68 districts and I have coordinates of 30.000 schools. The points have one variable besides the latitude and ...
2
votes
1answer
817 views

QGIS Python script for creating project file

Is there a way to create QGIS project file(.qgs) using only Python script outside QGIS Python console.I am trying to publish a map using QGIS Web Client using python. For this, I am trying to do below ...