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

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qgis-bin.exe - System Error

I'm running QGIS 2.8 Wien on Windows 8.1. I got this error: "The program can't start because qgis_core.dll is missing from your computer. Try reinstalling the program to fix this problem." I got the ...
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0answers
9 views

QGIS distance matrix: wrong metric distance

I used the lineair distance matrix tool in QGIS 2.6 My coordination system is metric (national Dutch RD new) The results have the wrong decimals, as shown below. How can I fix this? (showing unique ...
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8 views

How to define layer in QGis like in AutoCad?

I have imported a dxf file into QGis. While the importing processes split my dxf file into three layers - Point, Linestring and Polygon, which are different from the layer in AutoCad. I found the ...
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1answer
41 views

How to create several maps showing different layers but the same area?

I know about the print composer's atlas generation tool, which allows users to create multiple maps that show the same layers/features but different geographical areas. What I am looking for is a ...
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0answers
7 views

QGIS Georefencer Failed to compute GCP transform

I am a new QGIS user. I am trying to georeference a scanned paper map. After uploading map to the georeferencing utility and assigning 12 ground control points to map and assigning a datum I get a ...
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1answer
12 views

Cost Distance Analyst In QGIS?

Are there any tools, plugins or methods in QGIS which allows for an analysis of the best path between two points using least cost path method? As shown below ArcGIS has several distance tools.
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8 views

convert .shp to .gpx with selected attributes

I need your help, I working with qgis 2.6/2.8 (1.8 is installed too) Right now I planning an inventory and want to convert a .shp file to a .gpx includind the Column "fid" from the attribute table. ...
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5answers
5k views

Workflow for DXF interchange with QGIS

What is the best method of importing/exporting dxf files with QGIS ? I work in an engineering field and we use CAD and specialist design programs, and often go through several iterations during a ...
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2answers
18 views

how to color polygons with random color in QGIS

I have a map with a large number of polygons that I want to colour individually for display purposes. There is not particular pattern required, only to present them as individual catchments in a ...
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2answers
21 views

Visualizing multitemporal rasters scenes, side-by-side in QGIS?

I have to classify land cover/change every 2 months. Every 2 months about 5000 random selected points are classified, using L7/L8 images. For this, images from 5 different dates are show, ...
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1answer
28 views

Why is QGIS map not sharp when Printing it?

This is my first project so please bear with me! I have downloaded the OS StreetView Map and loaded it in to QGIS, the map is 1:10000. I am running a 27" Mac, but when I view the map on screen at ...
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2answers
3k views

Does QGIS have the equivalent of ArcGIS's Layer (*.LYR) file?

Using ArcMap, it is possible to add a dataset (eg a shapefile) to the map, and configure the layer's properties (such as the symbology, table joins, switching some attributes off in the Identify ...
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0answers
19 views

Creating Mapbook with Hyperlink texts in PDF using QGIS Atlas?

I'm using QGIS 2.8.1 Atlas and creating a mapbook using a grid layer that has an attribute with a URL in it. I want to use the URL in the attribute to be a hyperlink in the PDF once its published. ...
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1answer
15 views

How do I remove the group name in the QGIS legend renderer

I am using QGIS 2.8.1 and the print composer to create a map for export. There is a lot of positive things to be said about the QGIS print composer. It gives the user good access to the rendering. I ...
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1answer
123 views

How to create cross sections from vector point layer in QGIS?

I have a set of points (X,Y,Z) across a river. Is there a way to present them as a cross section? I'm attaching a cross section I made in Excel: The X axis are the longtitude and the Y axis, the Z ...
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0answers
9 views

Is it possible to host QGIS web application in Oracle weblogic server

I am new to QGIS and I want to know whether it possible to host QGIS through oracle web logic server instead of apache web server.
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1answer
16 views

View feature space for multi-band files

I am trying to plot a feature space (scatter plot) for some SPOT images in QGIS 2.8.1. I know a histogram is available in the file properties, but I want to plot eg. Band 1 vs Band 2 to see the ...
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1answer
183 views

Problem executing Mean Shift Segmentation

I have a problem executing the Mean Shift Segmentation in QGIS with Orfeo Toolbox. I put all the parameter to execute and then, nearly 5s after appear the message that SEXTANTE could not open the ...
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0answers
17 views

QGIS plugin saving layerstyle

I tried to use: Error = "" vLayer.saveStyleToDatabase ("styleName", "description", True, "", Error) in a python-plugin for QGIS 2.6 to save the data but no success. No error is written. First of ...
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1answer
331 views

Select polygons by attribute belonging to another layer

I'm a recent QGIS user. I have a shapefile A with a series of polygons indicating land use of an urban region (urbanised areas). Now I want to select them in relation to a second shapefile B with the ...
2
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0answers
15 views

Is it possible to edit qgis features in the web client by using Qgis server?

I am new to qgis and I am trying to build a application which runs on web by using qgis server Is it possible to edit features or adding feature on web by using Qgis server. Thanks in advance...
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2answers
70 views

Calculate distance between a set of points: lat and long in QGIS or R

I have shapefiles containing the location of several individuals along several months. Positions were documented with a 30 minutes interval. Tables contain the following data fields: collar (ID), ...
2
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1answer
123 views

Can you create a CRS of superseded NSW Datum

I want to use a superseded projection (NSW integrated survey datum - referred to as ISG) because my main client utilises it. The projection is based on AGD66. We regularly receive survey files in this ...
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1answer
21 views

Google+ photo in Qgis

I'm trying to use the kml file in qgis but only the html code is being stored in the attribute table. How to show the uploaded image(Google+) in qgis. It works fine in Google earth.
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2answers
178 views

How to delete empty fields from a Shapefile with QGIS or ogr2ogr?

I have a Shapefile with a lot of empty columns but many of them are empty. Using QGIS or ogr2ogr, how do I remove all attribute columns where everything is NULL?
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27 views

Converting DEM to Floating Point Raster (FLT) using QGIS?

I am looking to convert a DEM from AutoCad to a floating point raster file type in QGIS. I am relatively unfamiliar with the .FLT file.
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16 views

Getting all Google Earth Search Results into a KML for QGIS

This question has been asked by others before but there doesn't seem to have been a response, so maybe someone can help me here. I am using Google Earth to search for business premises in a UK city ...
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20 views

Clipping vector data (Point) with one class in symbolised raster

I have some .asc raster data I symbolised with ranges in two classes. Say 2.145 to 10.000 and 10.001 to 30.1254. Now I want to clip vector data with the area covered by 2.145 to 10.000. How can I ...
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13 views

Generating a plot by varying the buffer around each point

I want to create a plot like this: Basically, I have a bunch of points (properties), some of which have (and some of which don't) have Property X (e.g., a fence). I want to find out how the ...
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1answer
85 views

How to make maps out of imagery?

I am working for a client and we chose to use OpenGeoSuite as our system. Our client will be flying a plane over farm land capturing images that we need to put in our system. From my understanding ...
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1answer
41 views

Export GIS data to interactive report

Hopefully this is a GIS question although it crosses boundaries: I'm looking into the possibility of creating an all-in-one portable report derived from data compiled in GIS. This would contain a ...
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0answers
17 views

Running customized script qgis

I want to run a customized script in Qgis (namely that: Ortho Projection produces artifacts). With export PYTHONPATH=$PYTHONPATH:/PATH_TO_FOLDER I set the pythonpath in the folder where the script ...
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1answer
22 views

How to change the data type of columns of a vector layer in qgis?

Is it possible to change the data type and attributions of data in qgis? Almost all of the variables which contains numbers should be changed in all of my vectors. In ArcGis the data type is ...
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3answers
1k views

How to split lines on vertex?

I've searched a lot but didn't find an answer: When editing lines with QGIS, I often need to split a linestring exactly on one of his existing internal vertices, but I can't find a way; I've tried the ...
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10 views

Add QGIS raster layer to Google Maps API

Is it possible to add a hosted QGIS Raster layer into a Google Map? Thanks.
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0answers
13 views

Problem with QGIS raster interpolation from a point shapefile after duplicating the shapefile

Let me explain a problem I had with QGIS to see if somebody else has experience it. I created a raster from a point shapefile through the Raster-> Interpolation menu with no problems. After that, I ...
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2answers
2k views

How to fix missing ippj-5.3.dll error in QGIS?

I try to install OSGeo4W but when I tried to run it appeared an error message about ippj-5.3.dll is missing... does anyone know what happen?
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9 views

qgis (WIN): change settings from registry to INI

I have built qgis on windows 7, and need to stop the settings from being written to the registry. Is there a way to have an ini file created and used instead? (Having trouble finding that code)
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2answers
225 views

Rasterizing polyline data with QGIS/GDAL: custom line width

I need to make a raster from a polyline shapefile. However, when I use gdal_rasterize (either directly or through QGIS), all my lines are drawn one pixel wide, while I need them to be drawn with the ...
3
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2answers
54 views

Loading Grass 7.0 vectors in QGIS broken?

Running QGis 2.8.1 in Win7 (64bits), installed through OSGEO4W. When trying to load a Grass 7.0 vector file in QGis, the program will simply crash without any notice. I can load old Grass vectors ...
2
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1answer
25 views

Coloring multilinestringzm M values in QGIS

I have output from a geophysical technique that produces X,Y,Z and scalar value for millions of points, which have been stitched together appropriately (by networkx if it matters) into ...
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1answer
23 views

Sampling one shapefile with polygons of another using R?

I have two shapefiles that partially overlap. One (the bigger one) consists of several polygons which represent fields I am interested in. The second, is a rectangular shape that overlaps about 30% of ...
4
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8answers
4k views

How to get OS Mastermap data into QGIS?

I have been tasked with getting OS Mastermap topography data into QGIS system to compliment our other map layers. The data comes in .gz format. Which I am told needs to be decompressed before I can do ...
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0answers
39 views

Qgis 2.6 and 2.8. Custom form and Init function

I try to apply the good tutorial written by Nathan "Custom feature forms with Python logic". I try his sample on qgis 2.6 and 2.8. I altered the sample to allow field initialization by setting ...
4
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1answer
1k views

How to open a ESRI geodatabase in QGIS (Ubuntu)?

So far I have found instructions on stack exchange but they are for windows. And so far the information I have found is for windows. I currently have Ubuntu 13.04 Raring tail. I am using qgis 1.8. I ...
3
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1answer
53 views

Is it possible to mix italic and normal font in a label?

I have concatenate the values of two field like "BYKV_BTYP" || '/' || "FFH" Is it possible to draw the value of the column "FFH" in italic if it is not empty and the value of "BYKV_BTYP" ...
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23 views

QGIS 2.8 Export Atlas as PDF

I'm having an interesting problem: when I go to export the Atlas to PDF, the window to save the PDF on my hard-drive flashes very quickly and then disappears. The net result is that I cannot export as ...
2
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1answer
126 views

How to get a GML overlay on Google Maps?

Anyone know how to get a GML file to show as an overlay on Google Maps? To be honest I don't know my GML from my KML, or my ETRS89 from my WGS84, as this topic is completely new to me. A bit of ...
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0answers
39 views

Is there Data Loader for QGIS or Spatialite?

Is there a tool that works like the data loader of ArcGIS for QGIS (or via Spatialite )? To integrate data in a database or a shapefile without having the same structure (and the tool allows to ...
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0answers
28 views

Python Plugin not Working when I degrade the QGIS version from 2.8.1 to 2.0.1

I removed QGIS 2.8.1 from my system with Ubuntu 14.04 OS, as I was not satisfied with this version because it was crashing when I loaded data from my local server. Now I again installed QGIS 2.0.1 but ...