Software plugins that add functionality to the QGIS package

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0
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1answer
103 views

How to trigger a QGIS action when a plugin button is clicked?

I tried calling the select free hand tool by below snippet of code. iface.actionSelectFreehand().trigger() I dnt have any idea how to call this when i am pressing a button in GUI. my gui is ...
1
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1answer
47 views

How to compute buffers for certain features?

I used the following snippet of codes for finding buffer. def buffer(self): layer = self.iface.activeLayer() distance = float( self.dlg.DistancelineEdit.text() ) city = ...
3
votes
1answer
85 views

How to import fromUtf8 in QGIS?

# Declare instance attributes self.actions = [] self.menu = self.tr(u'&City_searcher_plugin') # TODO: We are going to let the user set this up in a future iteration self.toolbar = ...
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0answers
34 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 ...
1
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1answer
83 views

How to connect Excel file with QGIS?

I am working with QGIS and I want to connect with Excel. I have exported attribute tables to Excel. Now I want to connect Excel with QGIS in the way that if I change a line dimension, it will be ...
1
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1answer
90 views

How to call default tool in QGIS inside plugin using python script?

I want to create a plugin which can draw irregular polygons in QGIS. For that, I want to call the Select features by freehand default tool inside my plugin. How can I do this within a python script?
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2answers
69 views

Is it possible to set up a local QGIS Plugin repository?

I've developed a couple of custom QGIS Plugins for use by our office. I can't post them to the official QGIS Plugins repository as they reference/utilize sensitive data on our own servers. For ...
1
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2answers
955 views

How to export attribute table to Excel from QGIS?

I have seen all the questions for this question, and I try all the answer like copy paste, csv (in fact this I don't know where to find) but none of all is not the right answer. Can anyone help me?
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2answers
32 views

Is there a list of free application modules (or “Fachschalen”, in German) for QGIS somewhere?

I'm looking for application modules (in the form of plugins) that cover sets of related tasks like asset management, in a basic UI. A simple use case example: a water gauge (point feature with a 1:n ...
23
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1answer
18k views

How to install a QGIS plugin when offline?

Due to various IT policies at my workplace, QGIS is installed on a machine that is not connected to the internet. I wish to install a couple of QGIS plugins on this system. I have downloaded the ...
0
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0answers
166 views

Couldn't load plugin processing in QGIS: Access is denied for R

Couldn't load processing plugin due to flowing error. Any help? thanks. Couldn't load plugin processing due an error when calling its initGui() method Traceback (most recent call last): File ...
3
votes
1answer
97 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 ...
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0answers
93 views

QGIS 2.6 can't reload Python plugins

Im using QGIS 2.6 on Ubuntu 14.04. Suddenly a strange caching behaviour appeard in QGIS. When I change the plugin code and try to reload it with for example the Plugin Reloader plugin or when I reload ...
4
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1answer
1k views

Get a pixel value

How can i do this operation: I want to get a pixel value fro the satellite image (Landat, GeoTIFF, 7 bands) using qgis-python. What operators should i use? (for example in qgis's Python Console) ...
1
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2answers
547 views

How to copy attribute values of fields in selected features of one layer to another Qgis programmatically?

I am trying to get the values of attributes of the selected features of a layer field by field and copy to another layer that I created in qgis with pyqgis. Is here a example for this. Every example ...
1
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1answer
71 views

Getting values from Qt widgets and using them for a buffer

I am writing a simple plugin that finds buffer. My gui has 2 combo box and 1 Line edit. The first combo box will have a drop down of values from column 'States' and 2nd combo will have a drop down of ...
1
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1answer
86 views

Getting a number from QLineEdit and passing it to the buffer function

I am developing a plugin which finds buffer. In that i am using lineedit for getting distance from the user and pass it to the buffer function. My current code throws an error "'QLineEdit' object has ...
2
votes
1answer
83 views

How does QGIS know there is a plugin update?

I've created a plugin and hosting the installation zip and xml file on a local network repository (for company use). Everything works fine but every time a user opens QGIS, it shows that the plugin ...
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0answers
17 views

editing and moving curved text labels (along lines)

does anyone knows how to edit curved text label previously placed along a line?; and after converting it using Easy Custom Labeling plugin "Created labeled layer" tool, I obtain a point feature and I ...
1
vote
1answer
109 views

Are there reference manual pages anywhere for QGIS built-in “buffer” and plugin “points2one”?

Perhaps I am missing some quick pop-up help mechanism, but as a relative newcomer to QGIS (having cut my teeth on ArcGIS 10.1), I am struggling to find reference manuals (i.e. explanations of all ...
1
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1answer
165 views

Adding field values to a QComboBox in PyQGIS

I have a layer say 'Cities'. There is a column called 'NAME_1' in the layer. My GUI has a QComboBox in which i want the values of column 'NAME_1' alone to be displayed in the drop down of the combo ...
4
votes
3answers
175 views

Separate a string value in two integers in QGIS

My problem is the following. I have a huge dataset of forest stands. All the information are separated but in many cases the stands have different age and this is marked in one attribute for example ...
1
vote
1answer
82 views

How to sum 10 raster bands instead of 9 from code?

I want to sum 10 raster bands but the problem is that the following code will only work for summing 9 bands, which means the output image consists of 9 bands. from qgis.core import * from qgis.gui ...
1
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1answer
103 views

How to deactivate my custom tool by pressing the Escape key using PyQGIS?

I'm developing a QGIS plugin and I have created a custom tool. Once the process is over, if the user presses the ESCAPE key, I want my custom tool not to trigger mouse events on the map anymore. How ...
3
votes
2answers
478 views

”No module named ogr” when installing QGIS plugins

In QGIS 2.6.1, when I try to install the FlowMapper and QGIS Cloud plugins, I get an error - "The plugin is broken. Python said: no module named ogr" - giving me the only option of removing them. ...
0
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1answer
65 views

Loading all the vector layers in plugin

I have a list of vector layers loaded in the canvas of qgis. `layers = self.iface.mapCanvas().layers() for layer in layers: if layer.type() == QgsMapLayer.VectorLayer: ...
1
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1answer
146 views

How to link my QGIS plugin main class to mouse events from a custom Tool?

I Have two files one is mouseevent.py and the other one main.py. class MouseClick(QgsMapTool): canvasDoubleClicked = QtCore.pyqtSignal(object, object) def __init__(self, ...
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0answers
36 views

“mapinfo qgis style converter” : error message

I would like convert a big point layer from .Tab toward .QML thanks to the plugin called "mapinfo qgis style converter" . The symbology of my layer is quite complexe (variables of coulours, shape, ...
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0answers
43 views

The result is not displayed after OK is pressed in my plugin

I am developing a plugin that checks for multipart geometry in a layer in qgis 2.6. After ok is pressed, nothing is displayed. My code snippet is attached. def run(self): """Run method that performs ...
1
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1answer
138 views

Attribute Error: “List” object has no attribute getFeatures

I am developing a plugin that checks for multipart geometry in a layer in qgis 2.6. I am geeting an error list object has no attribute getFeatures. My code snippet is attached below. def run(self): ...
1
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2answers
131 views

Flowmapper plugin will not load on QGIS Brighton

Iyi gunler Cem Bey, I have just installed QGIS 2.6 (Brighton) on my PC (Bootcamp) running Windows 7 and would like to try out FlowMapper. However after I have loaded it I received the following error: ...
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3answers
156 views

Using QGIS2Leaf plugin to export into leaflet but output results into browser crash?

Amateur GIS technician here, Just tried to export my converted cad cities pipelines into a shape files and then export it into leaflet using QGIS2Leaf but the browser crashes before the displaying the ...
1
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1answer
177 views

What is the purpose of some functions and files in QGIS Python plugins?

I'm just trying to understand the architecture of a QGIS Plugin created with the QGIS Plugin Builder, as well as the workflow and the linkage among generated files. If possible, I'd prefer a diagram. ...
1
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1answer
125 views

QGIS Semi-automatic classification plugin install error on OS X 10.10: matplotlib.backends.backend_qt4agg

I have tried repeatedly to install the QGIS Semi-automatic classification plugin via both (1) Plugins > Install & Manage Plugins and (2) manually based on other comments I found here, but I ...
3
votes
1answer
91 views

Making QGIS buttons and my Plugin button mutually exclusive

I've added a toolbar to the QGIS main window and I've added some checkable buttons to the toolbar. How can I make my checkable buttons untoggle QGIS default toolbars' checkable buttons? That is, ...
5
votes
2answers
96 views

Start QGIS with virtualenv Python

is there any means of telling QGIS to use a different Python installation than the default, system-wide one? E.g. use some virtualenv Python /myvirtualenv/bin/python instead of /usr/bin/python? ...
2
votes
2answers
451 views

How to customize the QGIS default GUI using Python?

Is it possible to hide/remove/customize the default UI of QGIS from a Python plugin? I want to add my own menus and toolbars and remove some included by default in QGIS. If it's possible, which ...
4
votes
1answer
418 views

Snap points to line and calculate chainage using Open source GIS

I have a line layer (representing a pipeline) and a points layer (representing valves) and I would like to calculate the chainage of the valves along the pipeline. I assume that I would first need ...
1
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0answers
171 views

Pyqgis 2.2 : How to allow editing on layer and features [closed]

I'm writing a pyqgis plugin with qgis 2.2 I succeeded in accessing and displaying vector data (geometries & attributes). Now I would like to allow editing for all my layers and all features ...
1
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1answer
67 views

PyQGIS: feature added signal throws an 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( ...
2
votes
1answer
158 views

How to display QGIS plugin panel “OSM place search”?

It is possible to hide the panel for the experimental QGIS plug-in 'OSM place search' - but the panel is not listed (to re-display) under the menu item View | Panels. How can it be re-displayed?
1
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2answers
178 views

Issue in the popdown box (QComboBox) in QGIS 2.6 Python plugin

I had developed a plugin that counts the number of features for a layer in Qgis2.6. When i load a layer say 'Airport' for first time and click the pop-down box in the plugin,it lists the airport ...
1
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2answers
199 views

Georeferencer plugin will not load in QGIS

I have downloaded and installed QGIS. I would like to georeference an image using the core georeference plugin. When loading it no toolbar appears and the 'update', 'reinstall' etc boxes in plugin ...
1
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0answers
29 views

Error while creating QGIS plugin

I tried developing a python plugin in QGIS2.6 following the instructions in the link http://anitagraser.com/2014/04/26/getting-started-writing-qgis-2-x-plugins/.When I launch the plugin in QGIS after ...
0
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2answers
169 views

Is there scripts of QGIS core plugins available anywhere?

Is there anywhere I can see the scripts of the Qgis core plugins.
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0answers
50 views

get the ogr_SDE.dll from the MapServer

can please some one give help to get the ogr_SDE.dll from http://www.maptools.org/ms4w/index.phtml?page=home.html I will connect the ArcSDE to my QGis, like that intruction ...
1
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1answer
392 views

Polygonizer plugin for QGIS halts in Windows?

I've had some success and some problems using the Polygonizer plugin in the past. I'm using Polygonizer 2.1 in QGIS 1.8 on Windows 7. I'm aware there are sometimes problems using Polygonizer in ...
1
vote
1answer
245 views

QGIS Linear Referencing

I'm not sure how to ask this. Essentially; I work for a survey company doing gas lines GIS. We use QGIS. We create hand drawn sketches of pipelines containing all sorts of information including: ...
3
votes
1answer
90 views

Calling canvas.saveAsImage from script in QGis -Qstring problem

I want to create a processing script that saves the QGIS MapCanvas exactly as it is seen on the screen and then Zip up the tifw and a created PRJ. The existing QgsMapCanvas.saveAsImage()-method does ...
1
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2answers
203 views

Problems with plugin/installer manager in QGIS 2.6.1 Debian

An error has occured while executing Python code: Traceback (most recent call last): File "/usr/share/qgis/python/pyplugin_installer/installer_data.py", line 460, in xmlDownloaded if ...