Python bindings for QuantumGIS (QGIS)
6
votes
1answer
118 views
How to address the new “Task-Completed” QgsMessageBar in Python?
I am really amazed what huge steps the QGIS development has taken in the last months. The new iconset, the improved Print composer and many more changes to be seen in QGIS 2.0 are really awesome!
...
3
votes
1answer
393 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)
...
6
votes
1answer
902 views
How to create a new empty vector layer programmatically?
I am new to python and QGIS. I have looked at a few tutorials of python scripts for QGIS. All of them create new vector and raster layers with some existing data source. eg. shapefile or geotiff or ...
6
votes
1answer
508 views
When iterating over a vector layer with pyqgis, how do I check whether a feature is selected?
While iterating over a vector layer using the following code (summerized from the example in the pyqgis cookbook), is there a way to check whether a feature is selected?
provider = ...
2
votes
1answer
398 views
qgis.core import error
I would want to use the Qgis api for custom desktop application. When I imported the qgis.core module, I get the following error
>>> import qgis.core
Traceback (most recent call last):
...
1
vote
1answer
130 views
How can i include program form (created in Designer ) to my QGIS plugin?
How can I include a form created in Designer in my QGIS plugin?
And how to get controls values (textbox,label,etc)?
6
votes
1answer
438 views
Is there a way to access QGIS plugins in Python?
Is there a way to access QGIS plugins in Python? I'd like to write a script to do some geoprocessing, and I'd like to use the clip, regular points and convex hull tools in fTools, as well as the Road ...
5
votes
1answer
635 views
Why can't I import my script from the python console?
i am working with the qgis python console.
I usually store all my python scripts into ~/Scripts/python
I do have set the PYTHONPATH to ~/Scripts/python in my .bashrc
However, I can not manage to ...
4
votes
1answer
127 views
Personal shell launcher for PyQGIS
I have changed a shell launcher found at http://inasafe.linfiniti.com/html/id/developer-docs/platform_windows.html as to fit my wish: setting the system environment variables to be able to use PyQGIS ...
3
votes
1answer
386 views
How can I Setup Python to recognize QGIS
I want to use QGIS and work with Python out of the console, but I'm having troubles letting the system recognize the paths of some DLLs.
Since I couldn't find a good answer on the web, I wonder if I ...
3
votes
1answer
66 views
Button to add a new line in a non-spatial table without opening the table itself using QGIS?
While using QGIS and having loaded a non spatial table (from PostGIS), is it possible to add a new row to its table attributes without having to open the attribute table first as in here Is it ...
9
votes
4answers
464 views
How to buffer in pyQGIS?
I'm looking for some examples to do simple python scripts in QGIS. How would I do a buffer analysis on a dataset?
I can't seem to find much in the manual and QGIS python that quite matches the Esri ...
3
votes
1answer
131 views
Why are the features in my memory layer not displayed?
I am trying to create a memory layer, I followed the directions from the page below but no points appeared on my map. First I tried typing each line into the python console and I also create a plugin ...
2
votes
2answers
69 views
How to determine the coordinates of the corners of the raster layer
How can we determine the coordinates of the corners of the raster layer? The image opens function QgsRasterLayer.
2
votes
1answer
621 views
TIN Interpolation using a vector layer
I'm writing a plugin in QGIS and I'd like to generate a TIN surface using a vector layer with x,y and z (interpolation attribute).
The idea is to visualize the same result like in the Interpolation ...
2
votes
2answers
791 views
How to access attribute data type in QGIS?
I've been developing a plugin on QGIS platform using PyQGIS. So far plugin does the following: You can select any feature of the already loaded vector layer in QGIS. After selection, plugin displays ...
1
vote
2answers
523 views
How to fix QGIS PyQGIS package?
I have a broken package that is preventing QGIS from loading python plugins, updating itself, or even un-installing.
The main symptom of this problem is the following message that appears when QGIS ...
0
votes
2answers
69 views
How to make line with arrow head in QgsVectorLayer using python?
I need to draw line with arrow head or after drawn the line i need to make it as arrow head line by using python. or can we set any arrow head symbol for line features by using python?
Kindly help me ...
0
votes
1answer
326 views
pyqgis: How to get features of selected geometries
I wonder if anybody could provide an example how to get the attributes of selected Features?
I tried the folowing Code in the python Console - but I'm stuck at the point where I'd like to get the ...
