Software plugins that add functionality to the QGIS package

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2
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1answer
426 views

'QgsVectorDataProvider' object has no attribute 'select'

I want to create a tool layer in QGIS 2.4 that will select any vector features that intersect with that point. In my script I tried the following function: def selectFeature(self, point, button): ...
0
votes
0answers
48 views

Define distances - merge multiple points from QChainage?

I´ve been searching for a tool where I can defineand set any given distance with a point at a line. Although this might not be the an easy way doint it, I use QChainage (Good job!) by adding 1 point ...
3
votes
1answer
189 views

Qtiles on QGIS + QGIS Server

I have just created some tiles on my project on QGIS with the plugin Qtiles; now I get several tiles in .png! My question is, how could put these tiles .png on QGIS Server? Is it possible?
1
vote
1answer
104 views

QMarxan plugin - is there an update for version 2.4?

Is there an update for the QMarxan plugin which at this stage only works on version 1.8.0. I did read on one forum that this was in the process of being developed. Any feedback much appreciated.
0
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0answers
67 views

PyQGIS: Coordinates to TextBrowser

I'm doing tutorial: http://www.qgisworkshop.org/html/workshop/plugins_tutorial.html#tie-qgspoint-output-to-the-gui Right now I at the "Tie QgsPoint Output to the GUI". I did everything similar to ...
1
vote
1answer
52 views

Flow mapper not working

Hi I am trying to run the test files for flow mapper plugin in QGIS but I run into an error message.
2
votes
1answer
92 views

Compiling custom plugins for QGIS on Windows

I've made my first plugin using plugin builder and I want to compile it. I read that I need two commands to do it under windows: pyuic4 and pyrcc4. But when I use any of these commands I get this: ...
4
votes
1answer
363 views

Question about ArcGIS vs. QGIS for kernel density estimations

It appears from the QGIS documentation that the Heatmap Plugin can generate a kernel density surface from a point map and make use of the attributes of the original points to influence this surface ...
0
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0answers
20 views

How to extract road centreline from delaunay triangulation using open source QGIS? [duplicate]

From some months I have been solving a problem but I cannot finish. My question is, "How can I extract a road centreline from delaunay triangulation using open-source QGIS?" Actually, I am using ...
2
votes
2answers
273 views

How to open the “File Browse” dialog in Windows from a PyQGIS plugin code?

I am in the process of developing a plugin for QGIS using Python. Note that this is my first plugin, so the query could be quite basic... I have used this Digital Geography link to create the basic ...
2
votes
1answer
62 views

Adding new Field and writing values for all features

I need to create new Field in Attribute table of vector layer, and afterwards to calculate values and store them in that Field for all features I have in that layer. I have solution which works, but ...
1
vote
0answers
51 views

How to periodically refresh QGIS display with updated shapefiles?

I'm creating updated shapefiles for a fixed set of layers in a project every 15 mins. If the user has that project open in QGIS on a Windows 7 PC, I can't overwrite those shapefiles, so I rename the ...
3
votes
1answer
377 views

How to install open layers plugin on QGIS 2.4? [duplicate]

I am a new user of QGIS, and I just downloaded the version 2.4 on Windows 7/32 bits. And I seem to encounter several problems: I cannot install openlayers plugin In the "Plugins" tab under "Manage ...
2
votes
1answer
61 views

Why doesn't QGIS automatically find the new plugin update during startup?

I have done a plugin for QGIS and I made a repository (xml) for the end users to install it. Then, I made a new version and update also my repository file with the new one but Qgis doesn't ...
2
votes
1answer
191 views

QGIS 2.4 Heatmap Plugin Generates a Solid Black Map

I'm trying to generate a heatmap of vehicle-pedestrian collisions in Los Angeles using data taken from UC Berekely TIMS. TIMS provides an exhaustive database of traffic accidents involving injury in ...
1
vote
2answers
68 views

Creating a plugin tutorial

I am looking for a tutorial of how to create a plugin for QGIS. I want a tutorial that: Explains about the latest version of QGIS Working in windows environment. adequate for absolute beginners and ...
3
votes
4answers
142 views

QGIS Plugin with save settings dialog

I am writing on an update of the qgis2leaf plugin. It would be great to store the settings of the plugin UI (like which checkboxes are checked, which strings are used) in a separate file (like xml or ...
1
vote
1answer
72 views

How to simplify a multiline geometry in QGIS?

I'm trying to simplify my shapefile, which uses a lot of vertices to represent curvatures, by using the Generalizer plugin. But no matter what threshold I use for Douglas algorithm, it still includes ...
1
vote
0answers
50 views

Is there a QGIS plugin that allows users to interface with a PHP form page?

I've been looking for several days for a QGIS plugin that allows users to interface with a PHP form page. Does anyone know something that works in this way?
3
votes
1answer
94 views

Find Polygon in “Layer A” containing Polygon in “Layer B”

I haven't found yet someone with the same problem, so I'm posting a new question. The topic seems quite standard, so I'm sure there's a way to do it in QGIS. I have two layers: Region Layer Postcode ...
0
votes
1answer
99 views

Qgis crash with maptool plugin

I have a qgis plugin (c++) that adds a map tool inherits from QgsMapTool. My tool does nothing, juste I can activate my tool by triggering. I test my plugin in Qgis 2.4; when I activate my tool the I ...
2
votes
1answer
292 views

Import MySQL data to QGIS with a plugin

Does anyone know about a plugin that can import a MySQL database into QGIS?
0
votes
0answers
45 views

Importing Marxan results using Qmarxan in QGIS 1.8.0

I have used the Qmarxan plugin in QGIS 1.8.0 to create a planning grid for analysis in Marxan (I have used an older version of QGIS because the plugin Qmarxan has not been updated for the latest ...
1
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0answers
50 views

Pyqgis, Plugin development issues [closed]

I am new in the pyqgis world... I am trying to adapt the Geocoding Plugin developed by Alessandro Pasotti to a new plugin. I have been dealing with the following issues and I think you have the ...
2
votes
1answer
32 views

Broken Plugin: EOL while scanning string literal [closed]

I've written a python plugin, and it works perfectly on my pc (Windows 7). I've zipped the whole folder and sent it to the client. they report back with this (the name of plugin's folder is LTS): ...
2
votes
0answers
76 views

QGIS 2.2 - spectral profile for multilayer/time series

I am missing a spectral profile in QGIS which enables me to see the values for all bands of a given pixel. (absolutely necessary for multispectral and multitemporal/time series work) It seems, there ...
2
votes
0answers
81 views

Using Space Syntax Analysis plugin for QGIS?

I'm trying to run the Space Syntax Analysis plugin for QGIS. I've added the metadata file that was missing, but it does not appear in the Plugin toolbar when I click on it. Can someone help me to ...
1
vote
1answer
149 views

QGIS Metatools error

I haven't been able to successfully use the QGIS MetaTools plugin for describing metadata. Has anyone used it before? When I try to create metadata for a shapefile, the plugin creates the xml file but ...
4
votes
1answer
116 views

Problem with performance when loading PostGIS layer using pyQGIS

I'm having a question on loading a PostGIS layer into the project from my QGIS plugin. The code is like this: uri1 = qgis.core.QgsDataSourceURI() uri1.setConnection(str(host), str(port), ...
0
votes
3answers
283 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
vote
0answers
37 views

How to do LOS Analysis in QGIS?

I am not able to do LOS analysis in QGIS. I have point Features and Raster SRTM Data. I have installed the LOS Plugin in QGIS but not getting any results. Kindly suggest?
1
vote
1answer
78 views

How can I fix a broken gdal-tools plugin in QGIS?

I have QGIS installed on my 2011 macbook pro and I recently upgraded my OS to 10.9. After the upgrade, I noticed that QGIS gives me this error (see attachment 1) saying that the plugin is not ...
3
votes
1answer
39 views

How to store a password during one QGIS work session?

I'd like to get into qgis-plugin development, but am rather new to both python and QGIS development. I intend to write a plugin which connects data from a mysql database to shapefiles. As the data is ...
1
vote
0answers
50 views

Join/append multiple, identical polygon layers into a single layer whilst retaining all attributes?

I have run some analysis (zonalstats) on different raster layers using the same analysis polygons. I want to concatenate all these different layers together, i.e. retain a single polygon and have a ...
0
votes
1answer
108 views

How to set image size with Image Map Plugin on QGIS 2.4?

I use QGIS 2.4, but I have noticed that the "Set Map/Image Size" feature on the HTML Image Map Plugin no longer seems to work. No matter what you set the "Set Map/Image Size" for, your image will ...
1
vote
1answer
39 views

gdaltools in qgis v2.4?

Where's the GDALTools plugin for QGIS 2.4? It's not listed in list of available plugins, and it's seemingly not installed out of the box. Is it just that it's not yet compatible?
1
vote
0answers
23 views

How to install the QGIS Raster Lang plugin?

I´m trying to install the rasterlang plugin for QGIS. I tried several things on this website but it seems to be quite complicated because I need to install binary files and other files. The idea ...
2
votes
1answer
46 views

QGIS Processing - Additional Creation Parameter for GdalWarp

I am having a hard time getting the "Additional Creation Parameters" to work when using GdalWarp through the processing toolbox. I am trying to set the nodata value to 0 for the output raster. ...
4
votes
1answer
89 views

How do you set the position of a plugin window when you start the plugin?

I'd like to set the position of a plugin's window or dialog relative to the map canvas frame. For example, if I start a plugin, I want it to appear somewhere in the left upper corner of the map ...
2
votes
1answer
215 views

Sorting layers in legend using python in QGIS 2.4

In QGIS 2.2 , I was able to sort in alphabetical order the layers simply using this: self.maplegendtree = iface.mainWindow().findChild(QTreeWidget, "theMapLegend") self.maplegendtree.sortItems(0, ...
1
vote
0answers
24 views

Export polygon to points (vertices) [duplicate]

This is the first time that I have worked with geospatial data and QGIS, so please be kind. I was given a shape file that contains house districts for the state of FL. This link provides ...
1
vote
0answers
122 views

QGIS Grass Processing toolbox

I'm trying to use some of the GRASS tools from the processing toolbox in QGIS. I get the following Python error: An error has occured while executing Python code: Traceback (most recent call last): ...
5
votes
1answer
248 views

QGIS Processing Progress

I have been developing a python plugin that uses Processing algorithm for raster calculations. I want to support the gui with progress bar. How can i connect Processing job to progress bar? I found ...
3
votes
1answer
53 views

Show a single value related to a whole layer in QGIS

I'm developing a maximum flow plugin for QGIS. I would like to show a calculation result (i.e., the maximum flow) on the map. The result is not a property of a single feature. It is a property of a ...
1
vote
1answer
31 views

Adding some background information to a layer

I have 2 Python Qgis plugins. The first plugin is creating a QgsVectorLayer via the ogr dataprovider. The second plugin is offering some services on the features in the layer. I need to pass some ...
3
votes
0answers
102 views

IS it possible to run GRASS commands in the QGIS graphical modeler?

I have a geoalgorithm set up in the graphical modeler and everything runs except for the GRASS commands. It is really frustrating because when I execute these commands on their own they work just fine ...
1
vote
1answer
98 views

Problem with batch mode Saga Raster Calculator

I have to do a couple of raster multiplications for which the batch mode would save me a lot of time. But the only thing I get are rasters that contain nothing but nan values. If I multiply the ...
1
vote
0answers
73 views

Easy way to extract raster cells OUTSIDE a vector (Mask) layer in QGIS?

I have a raster file but am only interested in the cells outside a certain polygon. This polygon is very iregular and scattered across the raster. Is there any easy way to extract only the cells ...
2
votes
0answers
156 views

Retrieve a point coordinates from map canvas using QGIS API

I'm trying to build a plugin that firstly captures the map coordinates. I have tried to adapt the map tool explained in this post: How to programatically check for a mouse click in QGIS The code I ...
1
vote
1answer
204 views

QGIS 2.4 plugin PyQT qWebview javascript interface problem

I have a QGIS plugin which contains a qtwebview and Javascript communication between the page and the plugin. It is working perfectly with QGIS 2.2 but not with 2.4 (both QGIS versions share the ...