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Questions tagged [qgis]

QGIS is an open source program used to process and visualize geospatial data. It is available for most desktop and mobile operating systems.

QGIS (formerly Quantum GIS) is a user-friendly, cross-platform Geographic Information System (GIS) application with support for Linux, Unix, MacOS X and Windows. News updates are available from the QGIS blog.

QGIS supports numerous vector, raster, and database formats and provides numerous features for exploring, creating, analyzing, converting and exporting geospatial data. The core functions can also be extended through external plugins written in .

QGIS is an official project of the Open Source Geospatial Foundation (OSGeo) and is licensed under the GNU General Public License.

The gis.stackexchange.com site covers QGIS use cases in detail.

1691 questions
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LASTools doesn't run in QGIS 3.2 on WIN because of encoding

I have a problem with LASTools in QGIS 3.2. I installed plugin, activated it in processing menu with correct path. I tried to run lasview (I did the same process a day ago on ubuntu with WINE and everything was good), but I got only errormessage…
betka
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Creating an XML file using a Mapbox TMS

I'm looking for a way to display a Mapbox map in QGis in so it's recognized as a raster layer. I've already tried this, and I succeeded adding the TMS layer via TileLayer Plugin, using my mapbox url like…
Etherlind
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How to use color-ramps from cpt-city catalog with PyQGIS

In QGIS (as you know), there are 31 predefined color ramps, and also there are more in cpt-city catalog. And I want access one color ramp which is in cpt-city catalog (name: visspec). This is my code for a predifined color ramps which is…
Neven
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qgis ModuleNotFoundError: No module named 'PyQt5.pyqtconfig'

Traceback (most recent call last): File "D:/Study/qgis3/QGIS/cmake/FindPyQt5.py", line 34, in import PyQt5.pyqtconfig ModuleNotFoundError: No module named 'PyQt5.pyqtconfig' During handling of the above exception, another exception…
shunshi
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Uninstall Kyngchaos' frameworks

I'm trying to uninstall the Kyngchaos' gdal framework but still haven't been able to find a way to do it. It seems there is no info at Kyngchaos website so any help will be highly appreciated.
Guillermo.D
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Minimual DOM - set an attribute on the root node

Minimal DOM (minidom) is not allowing for the setting of attributes on the root element. Here is my code: # -*- coding: utf-8 -*- from xml.dom import minidom import os root = minidom.Document() xml =…
Scott Bing
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Buffer within QGIS not working properly

I'm an R Programmer but I found that Qgis is better for some geo projects. I'm having a tough time with something and I've searched. Basically, I want to create a buffer around 5 points so that I can then sum the population for the buffer area. …
astronomerforfun
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Extract Images from Bing Maps using QGIS

I have extracted shape files with polygon coordinates in geojson format for a particular area. Now I want to use this shapefile in qgis to extract individual images from Bing Maps corresponding to Polygon coordinates. How to do that?
Shubhrita Tiwari
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PyQt - Opening new window which closes immediately after opening

I'm trying to figure out why the window is closing after opening. I looked at examples of why this has happened for others but my application is set up a little differently (possibly a newer version of pyqt than the ones I was looking at or because…
InsertDisplayName
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How can i create holo effect around coordinates text in qgis grid?

I am creating some maps in QGIS 2.18 composer manager. I can easily create grid for my map item, but latitude and longitude lines are going straight through the coordinates labels. Is there some kind of solution, that allows me to create halo effect…
Simon
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How to extract polygons from raster?

The goal is to get the vector polygons from raster areas accordingly to their gray scale. For example: Dark pixels to dark_relief.shp Gray pixels to gray_relief.shp Light pixels to light_relief.shp First I got GeoTIFF from SRTM file using…
MapUser
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PyQt4 - convert list to QVector

How can I derive a QVector from a python list? I tried from PyQt4.QtCore import * #... is QVector herein? [...] v=QVector() for l in list: v.append(l) The key problem is, that I want to use a method that expects QVector as input where passing…
Jochen Schwarze
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How to Reset Python libraries modified by a software on Mac OS X El Capitan to original versions

I am facing problems in python after installing QGIS. While installing QGIS, it mentioned that it would override my matplotlib and numpy python libraries. I am facing trouble with executing python programs through these overrided libraries. I have…
tg89
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QGIS composer export to grayscale

Is there a possibility to create output (export) pdf (or svg) in grayscale using Print Composer in QGIS without changing color schemes in main map window?
vladimir mazoch
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import QGIS modules into Python (Anaconda)

control QGIS from within Anaconda's Spyder. I set PAYTHONPATH to C:\Program Files\QGIS Pisa\apps\qgis\bin, but it still gives this error while import qgis.core module: import qgis.core ImportError: No module named qgis.core How can I import the…
user1949719
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