Viewing posts for the category QGIS
QGIS Road to Nerdvana Episode 11: Aggregate dashboards
Tim Sutton decided to change things up a bit, he was joined by Charles and Seabilwe from Kartoza and the three made aggregate dashboards in QGIS. It is just the first steps and a lot of bumbling around, but hey maybe you will learn something!
QGIS Road To Nerdvana Episode 10: Speed Map Making (part 2)
Why make just one map in the quickest time possible? Make more! In this video Tim Sutton will again try to go from Zero to a Nice Looking Map as quick as he can.
QGIS Road to Nerdvana Episode 10: Speed Map Making (part 1)
In this video Tim Sutton will be trying to go from Zero to Nice Looking Map as quick as he can. See how he goes about creating the map and see if you can't make a nice looking map in 30 minutes.
QGIS Road to Nerdvana Episode 9: Building a 3D scene from scratch
In this episode Tim Sutton will show you how to make a simple 3D scene in QGIS.
QGIS Road To Nerdvana Episode 8: It's all a big meshunderstanding
In this episode watch along as Tim Sutton explores some of the new mesh capabilities coming in QGIS 3.16!
Finding and fixing topology and geometry errors in QGIS
Google Maps, Google Earth, Uber are examples leading software/apps that are driven by GIS. They have allowed the ordinary person inadvertently to use GIS and appreciate its power without needing an understanding of the basics of GIS. Many people have taken the leap to using GIS by using some of the GIS capabilities in Google Earth.
QGIS Road to Nerdvana Episode 7: Logging Postgres Calls
In this episode, Tim Sutton will show you how to enable PostgreSQL logging and what underlying queries are generated by QGIS or any other PostgreSQL client.
QGIS Road to Nerdvana Episode 6 - Responding to feedback on Episode 5 Pull Request
This episode is a follow-up from Episode 5, responding to the feedback received.
Enjoy Episode 6 of our Road to Nerdvana!!
QGIS Road to Nerdvana Episode 5: Tweaking the first run dialog
In this episode, Tim Sutton takes you along for the ride as he picks a long-time irritation in QGIS: The first run dialog. He tweaks it to make it look nice to submit it as a pull request to QGIS.
QGIS Road to Nerdvana Episode 4: Dealing with Issues
In this episode of QGIS road to Nerdvana, Tim Sutton will be showing you a workflow that will aid in dealing with issues encountered with a QGIS that compiles, so you won’t have to compile or debug.
QGIS Road to Nerdvana Episode 3: QGIS QA using astyle and pre-commit hooks
We are back with another episode of our roads to Nerdvana. On today’s episode Tim Sutton and world-renowned QGIS developer Matthias Kuhn walk you through the setup process for using 'astyle precommit hooks' - basically clever tools that will make sure your code looks smart and neat automatically so that nobody rejects it for not being standard compliant when you make a pull request.
QGIS Road to Nerdvana Episode 2: QGIS QtCreator Build on Pop_OS! 20.04
In today’s video blog, Tim Sutton shows you how to use QtCreator to build QGIS in a graphical development environment. The key entries used when setting up 3D support and here are the commands used to install QtCreator:
QGIS Road to Nerdvana Episode 1: QGIS Console Build
QGIS Road to Nerdvana is an exciting series of videos blogs that walk you through building QGIS environments to installing and using QTCreator all running on Ubuntu 20.04.
School GIS task: create a 5km COVID-19 lockdown exercise buffer around your house
If you are doing some teaching in the classroom and some online and you are finding "blended teaching" overwhelming, this task is designed for asynchronous self study.
Consuming cloud optimised GeoTIFFs in QGIS Server
QGIS has been able to consume cloud optimised GeoTIFFs (COGs) since v3.2, through the data source manager. This article does not aim to explain what a COG is as various other articles have done so extensively.
Create a custom reference grid in qgis composer part 2
This is a follow-up post on https://kartoza.com/en/blog/create-a-custom-reference-grid-in-qgis-composer/.
Calculating intersects for map layers and map extent dynamically in QGIS
Recently we have been working on a project that involves simulating the 1 in 50k topographic maps in South Africa. Since we are using QGIS Server to print the map all the logic is set up in print composer. All maps generated are dynamic (users can select a specific area within South Africa to print) and QGIS Server will use the map template to generate the map.
The Longest River in the World
Every now and then there might be a dispute about which is really the longest river in the world. As is shown in this National Geographic article. Even Wikipedia indicates that the fact that the Nile river is accepted as the longest river in the world as "disputed".
FOSS4G 2019 and QGIS in Bucharest
Open source GIS is alive and well and continues to grow in leaps and bounds around the world. Why so many Government entities in South Africa continue paying a fortune of tax-payers money for privative GIS and database software beats me, when wealthy, developed countries (as in most of Europe, for example) saw the light years ago and enthusiastically embrace FOSS.
Show only features within current Atlas feature - QGIS 3
In our endless endeavour to spread QGIS, I was invited to conduct QGIS training at the Surveyor General Department in Swaziland.