Software plugins that add functionality to the QGIS package

learn more… | top users | synonyms

1
vote
1answer
187 views

QStringList() error in plugin of QGIS 2.10

I have made a Dialog in PyQt for use it like a plugin under QGIS 2.10 The Dialog works fine like a standalone application, but if I try to call it like a QGIS plugin, I get this error: ...
4
votes
1answer
299 views

how to open second window in my plugin for QGIS?

I create a Mainwindow for my plugin, but if I want to open a second window from this Mainwindow, with click on push button. How can I do? I tried the following function in my Main Class: dialog = ...
0
votes
0answers
79 views

How can I upload CSV file in QGIS Desktop App?

Please see link : http://www.qgistutorials.com/en/docs/building_a_python_plugin.html I am using the same process for uploading a CSV file in a folder but it gives me an error. I am using this code: ...
1
vote
1answer
140 views

Using GDAL library in QGIS plugin?

i've been working on my project to create QGIS plugin for raster analysis purpose. It will be easier if we use gdal library. Are we able to use gdal library to develop QGIS plugin? If so, how do ...
1
vote
1answer
234 views

Unable to start modules in QGIS GRASS plugin (GNU/Linux Debian)

Recently, the Toolbox of QGIS GRASS plugin can't find modules in my GNU/Linux Debian. When I click on any module, the toolbox reports the message: Cannot find module x.xxx and, after, I have the ...
2
votes
0answers
126 views

How to create multiple polyline transects with a certain orientation?

I am attempting to create multiple polyline transects and use them as cross-section profiles to analyze snow drifts on a landscape. Is there a method of creating multiple transects in such a way that ...
1
vote
1answer
132 views

Creating input node file for V.net.salesman in GRASS?

I have imported line vector layer and point vector layer(12 points) to grass using v.in.ogr. Now i want to use v.in.salesman to find shortest path between these 12 points, but i couldnt input anything ...
2
votes
1answer
136 views

The QGIS atlas defined with pyqgis and a QPT template exports the same maps

I need to generate an atlas for each feature from a layer for reporting. There will be created a few maps. The centre of each map must be focused on each feature. In this task I use a predefined QPT ...
2
votes
0answers
45 views

XYToPoint PlugIn

Please is there any limited to the number of records (rows) and or attribute columns as I am trying to assign X & Y coordinates to a DB table but unfortunately it is not displaying anything on ...
0
votes
1answer
143 views

QGIS2WEB white screen on export/preview?

When I export my QGIS2WEB project it goes through, but when it loads up in my browser after the export is done all I see is a white background with the zoom/minus feature in the top left hand of the ...
2
votes
1answer
665 views

Display plugin icon [closed]

I'm unable to setup the display of the toolbar icon for a plugin in QGIS 2.0. I have compiled the "resources.qrc" with the correct path and filename, and checked possible spelling errors in the code. ...
2
votes
0answers
103 views

Data Upload Error for QGIS Cloud

I'm just taking a stab at QGIS Cloud to investigate it for a potential client, and I am pleased with the functionality of the web-viewer based on the sample maps. Although I cannot upload my own data. ...
2
votes
2answers
335 views

Add OpenLayers layer from QGIS's Python console?

On QGIS 2.4.0-Chugiak the Openlayers plugin is found under Web menu rather than the Plugins menu. How can you use the Python console to add a Openlayers Google Maps layer? The following code give us ...
1
vote
0answers
26 views

Shifted point in pdf export on QGIS [duplicate]

When I print as PDF a work done with a shape point and OpenLayer plugin I notice that the point are shifted In the dual screen image you can see the pdf exported image (left) and the QGIS woriking ...
0
votes
2answers
223 views

QGIS2WEB Error when exporting to Leaflet/OL3

I am having all kinds of problems with the QGIS plugins fr exporting my map to Leaflet or OL3. Whenever I try to preview my project I just get a white screen with nothing. Then when I try to Export to ...
2
votes
1answer
104 views

QGIS Plugins & Tools that replicate Select ArcPy Tools

I developed a complex python application for road generation from GPS Devices that uses a few Arcpy Tools. I want to try and replicate this Applications functionality using a freeware like PyQGIS ...
1
vote
0answers
192 views

Error: GRASS 7.0 and QGIS 2.8.1 in Linux Mint from the ubuntugis-unstable

I have installed GRASS 7 and QGIS 2.8.1 from the https://launchpad.net/~ubuntugis/+archive/ubuntu/ubuntugis-unstable (Trusty 14.04) in Linux Mint 17.1 64bit(sudo apt-get install postgis libgdal1h ...
1
vote
0answers
31 views

QGIS Wien 2.8. Openlayers plugin doesn't work [duplicate]

I have installed the latest version of QGIS wien 2.8. Windows 8.1 downloaded the stand alone version from official QGIS website. I had to uninstall the latest one I had because Openlayers plugin was ...
1
vote
0answers
272 views

Minidump on exit in QGIS (2.8.2- Wien) 64-bit version when using GDAL in plugin

I am working on a plugin for QGIS that is working fine on 32-bit versions but I am having some problems while using it on the 64-bit standalone installation package. I have tried on several machines ...
2
votes
2answers
468 views

Easy Custom Labeling tool: How do I remove label arrows?

I am labeling a lot of features and the Easy Custom Labeling tool is helping me to move every label to the desired position. I also like that the tool adds arrows for labels that I moved but sometimes ...
2
votes
0answers
52 views

Remove multiple fields from multiple shapefiles using a python script [duplicate]

I'm using the python console of QGIS 2.8.1-Wien. I have a shapefile with many fields in the table that I want to remove them. I tried to use this geoalgoritm as: processing.runalg('qgis:deletecolumn',...
1
vote
1answer
559 views

How to select and zoom in features from a QGIS Python Plugin

I'm very new to Python. I'm trying to find a way to select and zoom to the features from a QGIS layer. I've created a plugin and built a custom form. I have 3 values from the form which I need to ...
1
vote
1answer
61 views

Why does the Contour Plugin failt to load in QGIS Valmiera?

Whenever i try to load the contour plugin. I get the error as follows: The same happens to when i try to load Qgis2leaf plugin... An error has occured while executing Python code: Traceback (most ...
2
votes
0answers
101 views

How to edit the GUI of a QGIS plugin not made with the plugin builder?

I edited a python plugin's code and had to change the UI a bit as well. However, unlike in the plugins I made from scratch with the plugin builder, the UI doesn't automatically update in QGIS when I ...
2
votes
0answers
105 views

QGIS python originalName() does not return actual original layer name

I am writing a Python QGIS Plugin, using QGIS version 2.6 as the basis for development. When loading data into the canvas programmatically, I am trying to maintain the spatialite table name as the ...
2
votes
1answer
192 views

Compile pluging for qgis 2.8.2 with pb_tool or Makefile, in windows

I created my pluging with pluging builder, after compile the resources file, i test my pluging in Qgis. I modify the ui file in QtDesigner, but i don't know how to compile it in order to see the ...
3
votes
1answer
645 views

How to change default path for “.qgis2” folder on Windows?

I'm working with windows 8 32 bits OS and qgis 2.8.2. The qgis default installing path for ".qgis2" folder is C:\Users\image95.qgis2. This directory stores several usefull components like qgis ...
0
votes
0answers
37 views

Related Spation and non-spatial in QGIS

I am working with QGIS 2.6.1 by adding data from server using PostGIS. Now, I want to see the attribute information. So, how can relate the spatial with the information?
3
votes
2answers
3k views

How to use QGIS Photo import plugin?

I have a lot of Photos with lat, long, and altitude information. When I start the import, I get an error message. Do I need to prepare a blank point layer before importing? Is there another python ...
1
vote
1answer
60 views

Field calculater in Python console from QGIS

I have some doubts in syntax of processing.runalg(qgis:fieldcalculator) in python console of QGIS. I want to create a new field in a shapefile and calculate this formula: [D_PATRICIA]*1000. (...
2
votes
3answers
241 views

An Overpass query for OSM ways; both part of a relation and also a specific tag?

How do I construct an Overpass query to find data on Openstreetmap which is both part of a relation and has itself a specific attribute? Specifically: I'm wanting to find sections of cycle route (in ...
1
vote
0answers
56 views

Plugin SWAP vector direction doesn't work in QGIS

I've installed plugin Swap vector direction in QGIS. But it doesn't work. I click and nothing. I need to flip lines (22 000 000 lines). In ArcGIS takes many hours and still flipping. I thought ...
0
votes
1answer
98 views

How to solve the Qgis error when try to import a plugin created in lower version than 2.0?

Traceback (most recent call last): File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 219, in startPlugin plugins[packageName] = package.classFactory(iface) File "C:/Users/Drisya/.qgis2/...
2
votes
1answer
134 views

QGis draw over simple jpeg image

I'm pretty new to GIS, and since 2 months ago QGIS is a great tool to achieve very simple tasks, such open some shapefiles I find in the web and load that data on my website geoJSON formatted. Now I'...
1
vote
0answers
99 views

Issue loading fortran dll from QGIS 2.8 python plugin on Windows

I need help to call a Fortran shared library (DLL) from a QGIS python plugin. For this purpose I created a simple fortran dll with the function to add two integers. Also I create a simple python ...
1
vote
1answer
145 views

How to remove group filter applied via Python-console (setSubsetString) of QGIS?

I need to quickly applie (and then change/remove) the same filter for about 100 layers in my QGis project (all put together in one group). Since there is no implemented solution right now (a feature ...
1
vote
0answers
72 views

Why is QGIS 2.8.1 crashing when enabling Grass Plugin?

I am running Linux Mint 13 "Maya" (Ubuntu 12.04 Precise). I installed Grass via the software center. Than I installed Qgis 2.81 following this procedure: Add the lines for one of the repositories to ...
0
votes
1answer
50 views

Installing Rectangle, Ovals, Diamonds plugin?

I'm using QGIS 2.6 on Mac and unable to find the Rectangle, Ovals, Diamonds plug ?
1
vote
0answers
53 views

How to run the QGIS viewshed plugin from the console?

I want to run the viewshed plugin from the console/ in a script in QGIS. Do you know if this is possible?
1
vote
0answers
10 views

Plugin c++ - QGIS [duplicate]

I'd like to know how can i create extension in c++ by using QtCreator, for QGis 2.8 ? Thank you for helping me.
1
vote
0answers
36 views

Digitising - Separate fill and line opacities (or remove fill)

I have a client who specialises in aerial photograph interpretation and is in the process of moving from AutoCAD to QGIS. They find the auto 'fill' when digitising polygons really disruptive and ...
1
vote
1answer
446 views

Excel XLSX data with coordinates displayed as points

I am preparing a course for QGIS newbies, which includes handling Excel spreadsheet data in QGIS. It's so easy: Just drag an XLS, XSLX or CSV from Windows Explorer to QGIS! For data with no ...
1
vote
1answer
69 views

Handling save event in QGIS

I have managed to load QgsVectorLayer from PostgreSQL and add it on the map. Is possible to trap save event after editing, do my own saving, call layer refresh and in this way prevent from default ...
3
votes
1answer
89 views

fTool in pyqgis: Is it possible?

I am doing a work which I need to sample random points for many layers (classification of land use). Then, I'm trying to do a loop with my several layers and applied a functions of random pointos. I ...
1
vote
1answer
159 views

Plugin Red layer can not active in QGIS ver.2.8.1

I am trying to use the new plugin Red Layer, I have installed it in QGIS ver. 2.81. I can open the menu but it is not active. How do I enable it?
0
votes
1answer
152 views

Debug QGIS crash on Windows 7 - how?

I'm developing a QGIS plugin, and under certain circumstances, it causes QGIS itself to crash. How can I debug this, given that I am on Windows 7? I've tried using the QGIS nightly dev build (which ...
2
votes
1answer
312 views

Unable to compile using make test in Linux

While trying to compile my test plugin I encounter this error, for the moment I can't figure out why, last week I had some issues on windows but eventually solved them via OSGeo Shell but this time ...
3
votes
2answers
1k views

How to debug 'Layer is not valid error' from Python plugin?

I'm trying to understand what goes wrong with a QGIS python plugin. Basically I'm trying to render a series of POINT. The query works fine, at least giving it by hand from inside PostGIS DB: "SELECT ...
2
votes
1answer
131 views

Load buffer by percentage plugin python error

I couldn't install the buffer by percentage plugin on the QGIS 2.6 (I have Windows 8.1 on my pc), and gives a error message - the plugin is broken. Then when I start the QGIS it gives the following ...