Skip to content

QGIS

QGIS – Open Source Geographic Information System

https://qgis.org/en/site/
contra : interface werd gemaakt door autistische nerds, niets wijst zichzelf uit

install

  • 1° install : 3.21 via instructions for debian (instructions deleted)
  • [UPDATE] : uninstalled & reinstall via synatic,
    deze versie is echter 3.1, en loopt zoals gebruikelijk achter op latest stable
  • 3 install ; mogelijks zijn issues met 3.1 , zou best 3.26 zijn 
# install some tools you will need 
sudo apt install gnupg software-properties-common

# install the QGIS Signing Key, so QGIS software from the QGIS repo will be trusted and installed
sudo mkdir -m755 -p /etc/apt/keyrings  # not needed since apt version 2.4.0 like Debian 12 and Ubuntu 22 or newer
wget -qO - https://qgis.org/downloads/qgis-2021.gpg.key | sudo gpg --no-default-keyring --keyring gnupg-ring:/etc/apt/trusted.gpg.d/qgis-archive.gpg --import

Add the QGIS repo for the latest stable QGIS (3.26. Buenos Aires) to 
xed /etc/apt/sources.list.d/qgis.sources & disown:

  Types: deb deb-src
        URIs: https://qgis.org/debian
        Suites:    ~~bullseye~~
        Architectures: amd64
        Components: main
        Signed-By: /etc/apt/keyrings/qgis-archive-keyring.gpg

Suites in above lines depends on your distribution. lsb_release -cs will show your distribution name.
In some distributions (like Linux Mint), . /etc/os-release; echo "$UBUNTU_CODENAME" will show the correct distibution name.

sudo apt update
# install QGIS
sudo apt install qgis qgis-plugin-grass

getting started

Making a Map Using QGIS https://www.youtube.com/watch?v=zR7r84qbGgQ

plugins

the QuickMapServices (QMS) plugin is the most used QGIS plugin , for good reason
het voegt in enkele klikken map services / layers toe in een project , zonder alle conection info etc in te moeten geven

usage example :
- add a layer from OMS into the QGIS project
menu > web > QuickMapServices > OSM (open street map)
- select the area you want to work on
- add a data set to the project :
menu > web > QuickMapServices > Search QMS => pops a panel at the right side

default service : only OSM
to add several useful extra map services : QSM > settings > more services > clicq on the “Get contributed pack” button

maps-for-free map service

1 adding as XYZ tiles :
1. right click XYZ Tiles
2. New Connection
3. connection url :  https://maps-for-free.com/layer/relief/z{z}/row{y}/{z}_{x}-{y}.jpg
4. click OK.
2. You can then add it to QGIS from the browser pane whenever you want.
I recommend setting the Max Zoom Level to 11 just like in their site.