Questions tagged [qgis-plugins]

Software plugins that add functionality to the QGIS package

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1answer
414 views

Error in calling interpolation plugin for IDW in QGIS python

I wanted to call the interpolation plugin for IDW from python plugin and displays its output on QGIS desktop. I am able to call the function but the output displayed on QGIS qgis desktop with NAN NAN ...
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45 views

Unable to install or use any plugin

My problem is that it's not possible to install any plugin in my QGIS 2.18. When I install it I get this error: Couldn't load plugin 'quick_map_services' ImportError: No module named ...
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90 views

How to use *.tf or *.tfi files in QGIS?

I have some data in a deprecated projection that might not have an EPSG code. I I have asked the provider to tell me which coordinate system is and the answer come with those file, probably to use FME....
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1answer
161 views

Grass toolbar for QGIS 2.14.18

The GRASS plugin toolbar appears incomplete in QGIS 2.14.18. I can open the mapset but I'm not finding how to load (open) an existing layer.
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126 views

Manipulating / modifying terrain data to model a new surface

Short question: How to (intuitively) modify/manipulate a terrain with QGIS or alternative Open Source Software? The details: In order to build a habitat (ponds and depressions) for amphibians, a ...
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122 views

How to overcome a map distortion when I am changing the angle in Qgis?

In this project I needed to change the map orientation in 90 degrees. I used a nice plugin "Dockable MirrorMap" that gives the opinion to change each layer separately. The problem is that the map ...
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103 views

Amending existing plugins to match Qgis 2.16+ fTools removal

Part-time development started about a year ago to create an add-on for Qgis. Many of this plugins capabilities are written with fTools commands. I am wondering if there is a recommended document to ...
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1answer
111 views

get path from where QGIS is loading the plugin dll

In my QGIS plugin I want to get the path of my plugin. As yet I done this so: QDir appDir=QDir(QCoreApplication::applicationDirPath()); appDir.cdUp(); QString sPluginFile=appDir.path()+"/apps/qgis/...
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88 views

Seeking marketplace intended to commercialize QGIS applications?

If we want to sell general application such as website theme, plugins, mobile app, game, etc, we can use envato marketplace, google play store, or other marketplaces for selling and buying application....
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224 views

How to export training area information?

I did a supervised classification of a whole Landsat 8 image with 700 Rois (training areas) with the Semi Automatic Classification Plugin. I want to export the class names, the coordinates and the ...
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79 views

Arrows plugin returning Python error

I'm trying to run the Arrows plugin on QGIS 2.10 (Win 8.1), but I'm getting an error message: Traceback (most recent call last): File "C:/.../.qgis2/python/plugins\arrows\arrows.py", line 79, ...
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382 views

How to split polygon with multiple points in QGIS?

I am working on spliting a polygon which includes multiple points. I tried it manually but due to the large dataset it is very time consuming. Are there any automated tools or plugins to do that? ...
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156 views

Error in my buffer plugin

In my buffer plugin, i tried the following code # Get buffer distance and selected city dist = float( myLineEdit.text() ) city = myComboBo.currentText() # Get the feature corresponding to the ...
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95 views

how to add different data frames in QGIS? [duplicate]

![enter image description here][1]how can i add different data frames in QGIS and show all data frames in single map like we add different data frames in ARCGIS and in single map we show these data ...
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57 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 ...
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122 views

compile QGIS-plugin for Windows: problem with gdal_i.lib version

While compiling my plugin for QGIS 2.2 there are no errors, but it ist still not loading in QGIS because of an dll error. (function not found) I think the problem is at the gdal version. The QGIS-...
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51 views

Couldn't load PyQGIS in QGIS 2.2 on Ubuntu 14.04 [duplicate]

This issue appears to be occurring with some frequency to folks in some shape or form. I upgraded from ubuntu 12.04 to 14.04, with loss of python functionality. My QGIS version is 2.2 from the ...
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1answer
201 views

Errors uploading plugin to QGIS python plugin repository

I'm trying to upload my first plugin to: http://plugins.qgis.org/plugins/add/ I keep getting the following error: There were errors reading plugin package (please check also your plugin's ...
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1answer
3k views

Replacement of QVariant and setAttributeMap in PyQGIS

I am updating a plugin for QGIS 1.8 to QGIS 2.x. I have the code below. The setAttributeMap does not exist anymore. I have replaced it with fet.setAttributes and it seems to work. When using fet....
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1answer
390 views

Changing CRS for basemap from OpenLayers plugin

I'm working on plotting data from NYC (Queens, specifically) and I would like to overlay my heatmap on a basemap from the OpenLayers plugin to show the location of streets, parks, etc. Because I'm ...
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0answers
730 views

Why does my QGIS plugin MainWindow start with some widgets not drawn?

I have a QGIS plugin written in Python which uses a MainWindow to hold a few other widgets. When the window first gets shown, some widgets are drawn and some are not. When I resize or minimise/restore ...
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2k views

QGIS 2.0 Plug Repository Connection Failed

I'm trying to connect to the QGIS Official Plugin Repository but the status within the Plugin Manager window is always"unavailable" for the URL - http://plugins.qgis.org/plugins/plugins.xml. I'm ...
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134 views

How to perform Visibility Analysis using QGIS? [duplicate]

How can I calculate Visibility using QGIS? I have not found any suitable plugins for QGIS to do this.
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0answers
306 views

Finding out why QGIS plugin is rejected

I have a selection of python plugins (one rather large one) that I have developed under Qgis 1.8 and that I am migrating to qgis 2.0. The error that the Plugin Manager gives me when I load these ...
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1answer
177 views

Install plugins for qgis in centos

I followed the instructions here: How to install QGIS on Centos 6? If I run: QgsVectorLayer * vpoly = new QgsVectorLayer("Polygon", "pointbuffer", "memory"); QgsVectorDataProvider * provider = ...
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0answers
305 views

QGis 2.0.1 cpp-plugin for Windows

my plugin, developed in VS2008 for Windows runs in my testenvironment, the startimage of QGIS shows the developermeeting in Essen with the version number 2.1 alpha. On a other system I have installed ...
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0answers
288 views

Why are my combo boxes not filled with a list of layers?

I am developing a Qgis plugin (layer_gui) and I am having a problem with populating the list of layers. When I first run the plugin my combo boxes are not filled with a list of layers, I have to ...
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0answers
313 views

Problem using addVectorLayer() in QGIS

I am confused a bit, using addVectorLayer() in QGIS plugin. I want to add and display a vector layer, directly when QGIS opens. Hence I am using addVectorLayer() in ____init____() function of my ...
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0answers
105 views

Set buffer radius in metric units in qGIS [duplicate]

Possible Duplicate: What is up with QGIS buffer tool units? A similar question to this one has already been asked How to change the unit of measure from degrees to meters in QGIS?, but none of ...
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0answers
107 views

How to turn off Google map data copyrighted window in Google Street layer (Qgis - Openlayers Plugin)? [duplicate]

Possible Duplicate: How to close watermarks in openlayers plugin After a few weeks not using Qgis, this morning I opened it up, accepted a request to update Openlayers Plugin. Right now, I found ...
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1answer
182 views

Prepare a QGIS plugin installation package (for windows)

I'm developing a plugin for QGIS that depends on python libs that are not default installed, hence could easily be installed by the network installation. When the plugin is a little bit more mature I ...
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2answers
457 views

Rendering polygons with Qgis2threejs?

I have a polygon shapefile cotegorised according to a specific field. I want to present that 3D with the help of Qgis2three.js (sth like that). I have installed the plugin and have chosen the polygon ...
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1answer
396 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 ...
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2answers
550 views

Delete Rows in Qgis using Field Calculator [closed]

I tried to delete all rows where Field "Width" has value 2?
-1
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1answer
2k views

Global name canvas is not defined

I am just trying to print the layer name using python in my QGIS plugin by following code. allLayers = canvas.layers() for i in allLayers: print i.name() It is saying an error: Global name canvas ...
-1
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1answer
688 views

why Semi-Automatic Classification plugin installation failled repeatedly?

I successfully downloaded Semi-Automatic Classification plugin installer OSGEO from http://download.osgeo.org/osgeo4w/osgeo4w-setup.exe. But it respond that it couldn't the installation. Again I ...
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1answer
35 views

EasyCustomLabeling-2.0 plugin installation

I've downloaded EasyCustomLabeling-2.0 but I don't know how to activate the plugin or where files should be placed.
-1
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1answer
55 views

What do you use your QGIS plugins for? [duplicate]

I would like to know about QGIS plugins from a user point of view, because some plugin lack some user case, and one doesn't know what to do with it. I guess a lot of great plugin are under-used ...
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1answer
442 views

Qgis2threejs error after changes in qgis-ltr-bin

I have installed QGIS 2.8.9 in C:\OSGeo4W folder and change qgis-ltr-bin.bat last line with start "QGIS" /B "%OSGEO4W_ROOT%"\bin\surveykshak.exe --configpath "%OSGEO4W_ROOT%"\qgisini%*. I changed ...
-1
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1answer
373 views

How to capture the event whenever the items inside the listview is enabled or disabled and get the number of enabled checkboxes inside the listview [closed]

I have a function "openBrowse" which will allow the user to select SQL files from a local path and display the file names as with dynamic checkboxes created based on the number of files selected ...
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1answer
408 views

The reason why dataset does not create layer

I have a plugin written in Python, and two versions of the QGIS, assembly there are differences, but the main suspect, that the version of GDAL==2.0.0dev (1) another 1.11.3 (2) for first >>>...
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1answer
58 views

List printing same values as a buffer output instead printing unique values

I have a list of features selected in the mapcanvas and for those selected features I am doing a buffer and printing the feature names that are inside the buffer. While printing, all values in the ...
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2answers
762 views

How can I project a power line net in QGIS?

I am working with power lines net using the software QGIS. I would like to know which plugins or tools do I need to be able drawing (projecting) them.
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2answers
246 views

Is it possible to intall the opengeostack and QGIS nightly?

Did someone managed to get the opengeostack running alongside qgis so the plugin suite-qgis-plugin can be used? I am trying it on ubuntu1304, installing opengeostack works ok, but then when installing ...
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1answer
151 views

OSM route in QGIS 2.16 can not activate

I tried to install the OSM route plugin with QGIS version 2.16.3 for 64-bit Windows, through Manage and Install Plugins but I get an error Plugin installation failed. What could be going wrong?
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1answer
1k views

How to show the zip code boundaries in QGIS?

I want to know how to show the ZIP code boundaries in QGIS. For example when I type the zip code the screen need to be zoomed to that zip code area with boundaries, just like its working in google ...
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1answer
94 views

point feature duplicate in Qgis

please how can I duplicate point feature in qgis.I have done copy and paste as directed by Qgis tips but it does not work.
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3answers
2k views

Traffic Simulation in QGIS

I have several line layers in QGIS 2.8.3. I want to simulate traffic flow in this. Is there a plugin or any possibilty to run a traffic simulation on it.
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1answer
246 views

Warning message needed when there is no specific layer instead of python error

In my plugin, when I click a button it will call the findTheCityNames function which is attached below and get features if there is a particular layer. What I want is if there is no specific layer in ...
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2answers
1k views

QGIS 1.8 python refresh maps

i have developed this plugin .. everything works fine but the map wont get refreshed . here is the code: vectorCount =0 mpointCount=0 mlineCount=0 mpolygonCount=0 mrasterCount=0 mlegnd = self....