Version 2.0 of QGIS, is a user friendly Open Source Geographic Information System (GIS) desktop application licensed under the GNU General Public License.

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Mapfile generation from QGIS project

I am looking for a way to transform a QGIS project (.qgs) to a MapServer Mapfile (.map). I am using Quantum GIS 2.6 and MapServer 6. The layers are postgis tables. I would need something like this ...
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1answer
21 views

SQL-Like Inner Join on IDs in Two Layers in QGIS

Using QGIS v2.6.0-Brighton. This question is not about editing layers geographically in anyway. It is merely trying to find data from two layers as you would in an SQL Query and append an extra ID to ...
2
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1answer
33 views

QGIS Select overlapped feature

I have points that are not equal but the distance between them is so small that it can't be seen even at scale 200k:1. I calculated the distance between these points and add it as attribute. Now I ...
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0answers
19 views

QGIS Dimensioning during edit

Is there a plugin or tool providing following functionality: I select 2 points (or vertices) - it shows the length between this points When i edit the point (or move vertex) the length automatically ...
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1answer
35 views

QGIS Change file browser/chooser default location

Is there a way to change QGIS file browser default location? Currently it points to bin folder of QGIS installation C:\Program Files (x86)\QGIS Brighton\bin.
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0answers
43 views

QGIS Topology checker wrong results?

I am trying to understand topology checker results and frankly i dont get it - probably i am doing something wrong. Source - Point layer Target - Polygon layer Must be inside - that is working as ...
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1answer
31 views

QGIS 2.0 OpenLayers GoogleMap/Sattelite do not work

I have been using QGIS version 2.0 with Google Satellite layers for a few months. The last time I used was in mid Oct 2014. In mid Nov 2014, Google Satellite or Google Map suddenly does work any ...
3
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1answer
56 views

Save map in raster format from QGIS using compression

Is there a method to save a map in raster format from QGIS using compression? For exemple from "Export map" in ArcGIS there are many options to compress the images depending on the file type (tiff, ...
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1answer
33 views

Crop one shape file using another shape file in QGIS

In QGIS 2.0.1, is there a way to automatically slice up one shape file and export it as multiple files using polygons defined in another shape file? I have a detailed shape file that categorizes the ...
3
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1answer
29 views

How to get the length of each line segment in a line shape file in QGIS

Iam new to QGIS. I drew a line depicting a small length of road. But I drew it in segments and then atlast right clicked at the end point and gave id=1. I extratced the nodes, their geometry. But what ...
0
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1answer
25 views

With QGIS Plugins/PluginBuilder, how to prevent 2nd instance of Plugin from starting

I am using QGIS 2.6.0, with PluginBuilder 2.0.3 [checking the version, I just noticed that the 2.1.0 update is available] I am writing a plugin; it installs and runs. While running, I am able to ...
2
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0answers
30 views

Is there a way to change floating toolbar orientation?

Is there a way, within QGIS 2.*, to stop the interface from trying to snap in floating toolbars (as attached pic)? I want to maximise canvas space, but the interface keeps on wanting to grab my ...
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2answers
15 views

Error with layer.pendingAllAttributesList

While coding to obtain individual layers' attributes (field) list, I am stymied by the code. I can identify a specific layer: MyLayer = QgsMapLayerRegistry.instance().mapLayersByName("TestPoint") ...
4
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3answers
73 views

QGIS Composer thematic map : one (png, pdf, etc.) map per feature type

I've got a shapefile that contains thousands of features that can be group by categories. These features are sometime located in the same place so they overlap. An example of the content of my ...
1
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3answers
56 views

How to Count point in polygon + on boundary?

So I'm looking for suggestions in both ArcGIS 10.2 and QGIS on methods on how to count points within a polygon and points that fall on a polygon boundary without adjusting the data/points. The ...
2
votes
1answer
69 views

QGIS 2.6 - Point Sampling Tool plugin producing empty shapefile

I use a DEM file (*.tif) and a points layer. My need is basic : getting the Z value for each point by extracting them from the DEM. Both layers correctly opened with QGIS 2.6. The DEM returns a Z ...
2
votes
1answer
19 views

Mapping variation within multiple categories using QGIS?

I am learning qgis and running into a problem. Here is what I want to do. I have county data. It falls into 4 types. Each type includes a discrete set of counties, that does not overlap with the ...
3
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0answers
64 views

How to submit user scripts for Processing Toolbox (QGIS 2.6)?

QGIS 2.6 change-log says that now there is some kind of repository where users can submit their scripts to make them available for everyone. Unfortunately I was unable to find any details about how to ...
1
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1answer
82 views

Use PyQGIS to import CSV and draw points using different color

A CSV file contains columns latitude, longitude and color. uri = "file:///C:/data/balls.csv?type=csv&xField=longitude&yField=latitude&spatialIndex=no&subsetIndex=no&watchFile=no" ...
3
votes
1answer
126 views

How to create a cluster of crashes?

I have a shapefile with 52K points of road accidents, between 2007 and 2012. Each accident has a severity index. I want show clusters of 5 accidents (at least), for each year, that have a severity ...
3
votes
1answer
67 views

Spatialite WITH clause issue

I've encountered an issue: when I try to execute in Spatialite_GUI query that contains WITH clause I get SQL error: near "with": syntax error. Also WITH unlike SELECT and other keywords is not ...
3
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1answer
52 views

Superimpose OTB application via Sextante cannot load parameter

I am trying to perform a pansharpening using OTB via sextante. According to the cookbook I first need to superimpose the Pan and XPS images: http://www.orfeo-toolbox.org/CookBook/CookBooksu36.html ...
9
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1answer
261 views

Can PostGIS and QGIS provide dependable multi-user editing?

After considering a few options, I'm trying to give my 15-20 QGIS 2.2 users the ability to concurrently view/edit one or two basic point PostGIS layers, largest one has just 16,000 records. I've ...
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0answers
20 views

Importing QGIS file in Eclipse for Android application?

Using ECLIPSE for android development, and also QGIS for customizing maps, I want to know if I can import the data in QGIS into my android application so that the data of my android applcation will be ...
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0answers
24 views

QGIS crash on logon screen : Python

When I run QGIS, it loads plugin and everything until starting python appears. I have python 3 installed. I need Python 3 and can't remove it from Python path. How do I use QGIS? Isn't QGIS bundled ...
4
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1answer
100 views

How do I plot points that have relative coordinates rather than total station coordinates on a map?

I have about +100 points of various descriptions from an archaeological survey. They are the backlog from years of excavations BEFORE systematically using Total Station at the site. For each artifact ...
2
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1answer
41 views

How do I programmatically automate “Random Points” in QGIS?

The random point tool in QGIS 2.4 works perfectly fine through the GUI, but I can't figure out how to automate this tool via Python and/or the modeller. Specifically, under the menu items: Vector | ...
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1answer
50 views

QGIS attributes pop-up window is empty

I have a problem with QGIS (2.2 and 2.4). Sometimes, when I'm going to insert some new features on a layer, the pop-up window that appears at the end is empty (all gray, no attributes are displayed). ...
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0answers
39 views

Editing attributes in a custom feature dialog box

Is there any special trick to getting a custom dialog into an editable state (setEditForm) I see there is an editable() method, but no corresponding setEditable(). Setting the layer as editable ...
2
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0answers
31 views

QGIS - is it possible to select the columns shown with “Identify features”?

In QGIS, I have created a join to an attribute table with some 60 entries. I am only interested in seeing 3 of the columns, specifically address data. I can see no way of excluding the unwanted ...
0
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3answers
152 views

Georeferencing window won't open QGIS 2.4

I had the georeferencer window open in QGIS 2.4 while project was running, I accidentally closed the Qgs document with the georeferencing window open (worked absolutely fine till then). When I opened ...
1
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1answer
31 views

Red x marks along lines after adding a length field?

I added a "length" field to a shapefile of lines called "roads". QGIS puts red x's along the length of the road afterward. Why is this, and can I make these go away?
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0answers
77 views

Formatting Google Places API GeoJSON and Import to QGIS?

Hi Stackexchange I'm trying to export JSON or XML data to my desktop and import it to QGIS. This is the URL I'm using but it appears to be incorrectly formatted: ...
0
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1answer
61 views

QGIS Python console - save image from bounding box

I want to save an image from QGIS but the save image functionality feels limited. My question is if it's possible to use the python command line to save an image at a specific zoomed in scale and to ...
4
votes
1answer
66 views

Adding super/sub script in QGIS text annotation?

How can I add a super/sub script in a QGIS text annotation? For example, 44.95 mi^2.
1
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1answer
124 views

Why is feature.geometry() None in my user-defined expression function?

I'm trying the user-defined expression functions for QGIS, as listed on Nathans blog: http://nathanw.net/2012/11/10/user-defined-expression-functions-for-qgis/ I always get the feature.geometry() as ...
1
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0answers
26 views

Labels on the QGIS WMS layers are not drawn according to the style definition

I have an issue regarding the styling of labels of WMS layers using QGIS server. I can't seem to get them to display how I want. What I did: create a QGIS project (2.2 on Mac) with a layer from a ...
2
votes
1answer
60 views

Filtering MSSQL layers in QGIS doesnt work

In my QGIS Plugin I am filtering layers with this Python code: FeatureIterator = layer.getFeatures( QgsFeatureRequest().setFilterExpression ("Fieldname='SomeValue'") ) for feature in FeatureIterator ...
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0answers
40 views

Is it possible in QGIS print composer to include a numeric scale in an html box?

For work I always have to create a table with my name, project name, date etc. into my map layouts. I also need to include the scale like "1:150000" in that table. So far I am solving that by ...
1
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1answer
34 views

Deleting vector lines beyond image extents using QGIS?

I am using QGIS 2.2 I have one vector line layer (roads) that stretches beyond my base image (see below). I wish to have the roads "clipped/trimmed or deleted" right at the edge of the image's ...
3
votes
0answers
94 views

How to export data from sql server into shapefile in the decimal format in QGIS 2.4?

The last couple of days, I have been working on exporting data from SQL to a shapefile in QGIS 2.4. While converting into a shapefile, the data type changes automatically from Float to Integer in the ...
2
votes
1answer
74 views

Creating a graduated buffer in QGIS

I'm attempting to map cell phone towers and their range in QGIS. I'm wondering if it's possible to create buffers which change color intensity according to their distance from a central point. The ...
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0answers
16 views

Pyqgis 2.2 : get signal on feature added : error message

For my pyqgis plugin 2.2, I try to: def logFeatureAdded(self,layerId,addfeatures): message = str(layerId) + " has features added: " for feature in addedFeatures: message += str( ...
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2answers
132 views

Pyqgis 2.2 : zoom to layer extent?

Regarding my plugin pyqgis 2.2, i can load a vector layer succesfully. But when i try to zoom to the layer extent it does not work. How to do in order to zoom to the layer extent? Thank you very ...
0
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0answers
56 views

Get signal on edited feature?

Regarding my pyqgis plugin 2.2 , I've implemented signal on a vector layer event successfully. For instance, whenever i create a new feature, i can read a new basic message appeared via QGIS logging ...
4
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2answers
376 views

Best Landsat-5 TM band combination for detecting fire scars

I am looking for the best band combination with Landsat 5 imagery to detect fire scars.
3
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1answer
102 views

Qgis - Labels automatically resize to fit within the polygon

The question of my problem is simple, I want to make labels automatically reduce to fit within the polignos. Type the biggest size is 12 and goat decrease the size to be restricted to the limits of ...
1
vote
2answers
94 views

How to export a high-res world map image?

I'm trying to get some (very) large world map images (think 10k x 10k pixels etc), but can't seem to do it with QGIS, and would appreciate any help. Manually adding smaller images to a larger one ...
0
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1answer
46 views

Update OSM data already imported in qGIS

qGIS makes it really straightforward to import data from Open Street Map (there's a good tutorial here). However, despite this process is relatively straightforward, it takes some time to download the ...
1
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1answer
178 views

QGIS 2.4 (and 2.0.1): How to uninstall/reinstall a plugin where uninstall is disabled?

Plugin Raster->TerrainAnalysis->slope which had initially worked, started showing what another questioner referred to as a "crazy histogram": qgis2 slope analysis from NED data gives crazy histogram ...