Software plugins that add functionality to the QGIS package

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3
votes
2answers
198 views

QGIS Plugin for PostGIS versioning

Does anyone of you know a QGIS-Plugin for Versioning PostGIS-Data? I know there was pgVersion of Horst Düster but as far as I know this was not updated for QGIS 2.x (at least not for the "normal" QGIS ...
1
vote
1answer
143 views

How to get a layer by name in PyQGIS?

I have a plugin which finds buffer for list of cities, provided the distance. The state and city names are taken from the attribute table and gets filtered accordingly. What I want is My plugin should ...
2
votes
1answer
391 views

QGIS moving the layer/all features using Vector Affine Transformation

I'm using QGIS to analyse some flight tracks which were produced using a different software. Now when they are on QGIS the reference point of everything is on 0,0 which is the aerodrome reference ...
-1
votes
1answer
142 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 ...
2
votes
5answers
316 views

How to export attribute table with start and end coordinates of lines to Excel?

I am working in QGIS. I have a georeferenced line layer and I want to export the attribute table and the coordinates of start and end points of my lines to Excel. Can I do this with QGIS?
1
vote
2answers
1k views

GEarthView plugin doesn't work

I'm trying to install the GEarthView plugin but without success. The following message pops up after installation: "No module named zope.interface" What is the problem? QGIS 2.6.0 Windows7 (64Bit)
0
votes
0answers
40 views

How to select the buffer region in map canvas in my plugin using python

I am developing a plugin which finds buffer by getting state name, city name and distance given by the user. The plugin works fine and writes the cities that matches the distance in a CSV file. What i ...
1
vote
1answer
31 views

Error while trying to replace a opened csv file with the newone in my plugin

My plugin does some basic geoprocessing functionalities and write the output as csv file. What i want is when i open some already writed output csv file in a writable mode and try to replace the same ...
1
vote
0answers
11 views

How do i select specific time and download quality MOD021KM data

I am trying to download MOD021KM for net primary production estimation, and am so stuck on how to download the data and selecting the best time of a day using LAADS website. Morever which values for ...
0
votes
0answers
26 views

Error in finding buffer

I am trying to find a buffer for city provided a state, distance and filepath to write as csv. What i am facing is that the name which i selected in the city combo box alone gets writed in the csv ...
1
vote
1answer
43 views

Removing the duplicate values in QCombo Box

In my plugin, there is a combo box which lists city names for a particular state. FOr example, if i chose a particular state and city will be some 20 names in the dropdown. But the first name alone ...
1
vote
1answer
96 views

How do I properly import python sklearn to QGIS PyQt plugin?

A bit of background: I'm somewhat new to python and QGIS plugin development. I've created a plugin structure for QGIS using the Plugin Builder on QGIS and I've added some controls to the gui and ...
2
votes
1answer
134 views

Layer properties dialog in my QGIS plugin

I am developing a plugin which should display some information like geometry of the layer, feature count etc. Now those are currently displayed in QMessageBox.information. I want it to be displayed ...
0
votes
1answer
138 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
vote
1answer
49 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
96 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 = ...
0
votes
0answers
39 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
vote
1answer
112 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
vote
1answer
96 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?
2
votes
2answers
93 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 ...
2
votes
2answers
2k 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?
0
votes
2answers
36 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 ...
25
votes
1answer
19k 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
votes
0answers
232 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
101 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 ...
1
vote
0answers
124 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
votes
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) ...
2
votes
1answer
84 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 ...
2
votes
1answer
143 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
88 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 ...
0
votes
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
131 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
vote
1answer
198 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
195 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
95 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
vote
1answer
132 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
554 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
votes
1answer
75 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
vote
1answer
177 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, ...
1
vote
0answers
41 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, ...
0
votes
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
vote
1answer
203 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
vote
2answers
143 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: ...
1
vote
3answers
191 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
vote
1answer
210 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
vote
1answer
163 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
116 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
116 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? ...
4
votes
1answer
530 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
vote
0answers
191 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 ...