I've recently been playing around with Docker and QGIS and have installed a container following the instructions in this tutorial. Everything works great, although I am unable to connect to a loca...

I tried to create a polygon shapefile in QGIS and read it in python by shapely. An example code looks like this: import fiona from shapely.geometry import shape multipolys = fiona.open(somepath) ...

I have a map that I have digitised and converted to a vector layer (the rivers only). The problem is that the vectorisation has produced a large number of segments for each river, that show up as d...

I'm making a QGIS plugin in which I ask the for authentication object (with QgsProcessingParameterAuthConfig) for the PostgreSQL connection (which is already set in the connecions list of the user)...

I have a polygon shapefile of the U.S. made up of individual states as their attribute values. In addition, I have arrays storing latitude and longitude values of point events that I am also intere...

I would like to be able to draw some features on the map generated by the QGIS2web plugin. I found some Openlayers drawing plugin here: https://cdn.rawgit.com/HamHamFonFon/ol3-drawFeatures/82f29a3f...

I've installed QGIS 3.4 using the network installer (64 bit) and tried to use qgis with pycharm as described here: http://spatialgalaxy.net/2018/02/13/quick-guide-to-getting-started-with-pyqgis3-on...

I have a PNG image file.I want to convert it to GeoTiff. I installed QGIS software but i can not use it and i dont know how to Georeference the image. Please help me. is there any online software ?...

I have a CSV file with a data field which contains data like bellow POLYGON ((79.87749999947846 6.997500000409782, 79.88249999947845 6.997500000409782, 79.88249999947845 7.002500000409782, 79.8774...

I'm trying to get geometry data from a large quantity of shapefiles into a database (Google Datastore). The thing is, I don't need to work with maps, I just need the coordinates, so I would like ju...

I am using Qgis 3.4.9. How can i fix To fix the error: NameError: global name 'QgsMapLayerRegistry' is not defined. from qgis.core import QgsMapLayerRegistry Is not working in Qgis 3.4.9 QgsMapL...

I have hurricane track points which I converted to lines in QGIS: https://i.sstatic.net/Gtt61.png https://i.sstatic.net/6z8MO.png I have both saved as shapefiles and load them into R using the s...

What does Shape_area mean? I noticed that it is not the sum of Aland and Awater. What are the units of these three?

I was testing rendering of data via GitHub in geojson format, because I wanted to use it for INSPIRE data. INSPIRE data are in GML 3.2.1 format. I've downloaded one of datasets from http://services...

It seems like raster tiles have started to go out of fashion, but still, I need a solution to do it somehow for my QGIS Server's WMS. Up to this point I have tried TileCache, but I couldn't make i...

these vector or raster files being classic files without geocoordinates. They are lat/long projection, I want to import them into QGIS, scale them up/down, place them to their right place, and they...

I use pyenv to manage Python versions in Mac OSX High Sierra, works fine. A new version of an important piece of software for me, QGIS v3, requires that Python 3.6 exist on the system but looks for...

I'm trying to install QGIS 3.4.1 on Mac OS Mojave. QGIS install comes as a pkg file, specifically requires python 3.6 (will not work with 3.7), Mac ships with 2.7, and homebrew installs python3 wit...

Has anyone had any luck in importing data that has Geohash as a field into QGIS for any visualizations? Ultimately my data is - Name, Geohash, Value Bob, 9mu9ecy, 3 Nancy, 9mu9ecy, 8 Nancy, 9mu9...

Following the directions provided at this page and am getting the following errors. The following packages have unmet dependencies: python-qgis : Depends: python-qgis-common (= 1:2.8.8+20trusty)...

I have the following polygons in PostGIS Each polygon has field with "Data" value. I would like auto merge the polygons which touch each other : 1-2 and 3-4-5-6-7 Also , If possible I would li...

All, Can python read the value of a cell in a spreadsheet? From a mapping/GIS/analysis standpoint: the simplest example would be a script that ran a buffer (proximity) tool on a given shapefile (...

I'm writing a script that is dependent on knowing the geometry type of the loaded shapefile. but I've looked in the pyqgis cookbook and API and can't figure out how to call it. infact, I have tro...

I have been working on a project that pipes data back and forth between a QGIS plugin written in Python and some image processing code I have written in C++. After some community help via the follo...

I have an interesting problem in QGIS, I have a vector layer of points (shown in purple) and a layer of polygons (green) with a number of metadata attributes attached (i.e. date, id number etc). ...