Sunday, 23 August 2020


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Our first tutorial in the QGIS Actions series focuses on how to consume services with your point data. You will learn how to generate random points in your polygon and send their coordinates to the HERE Maps Reverse Geocoder API.
Thursday, 16 April 2020


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Entering the world of projections can be slightly overwhelming. Basically every projection has advantages and disadvantages. Some may preserve elements of direction, distance or area better or worse than others which is why a careful selection of a suitable projection is so crucial.
Friday, 21 February 2020


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Hosting your own QGIS plugin repository can be very beneficial to serve plugins to a limited user base and provide them the comfort of installing and updating your plugins through QGIS. Learn in this tutorial how easy it is to create your own QGIS plugin repository.
Saturday, 25 January 2020


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In this tutorial you will learn how to build a powerful elevation API serving a Digital Elevation Model using PostgreSQL, PostGIS and PostgREST.
Friday, 20 December 2019


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In this tutorial you will learn how to build a spatial REST API with the powerful PostgREST library utilizing PostGIS under its hood – in mere minutes!
Sunday, 08 December 2019


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Learn in this tutorial how to build a simple but powerful and scalable Geo API from scratch with FLASK and FLASK-RESTPlus, that is able to handle and process basic spatial data like a charm.
Friday, 25 October 2019


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In this tutorial you will learn how to build a spatial REST API with the powerful PostgREST library utilizing PostGIS under its hood – in mere minutes!
Tuesday, 22 October 2019


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This tutorial will give an introduction into enabling WordPress with spatial capabilities via a custom Wordpress plugin and expose those functionalities via the built-in REST API.
Wednesday, 14 August 2019


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Learn how to build a simple web-map application with react, redux, turfjs and leaflet which is able to compute DBScan clusters with places provided by HERE Maps.
Friday, 21 June 2019


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A short roundup of Qt Designer, which ships with QGIS and is the recommended program to design Graphical User Interfaces for QGIS Plugins. This post is complementary to our plugin tutorials or just a refresher. It also explains resources.qrc files in more detail, a usual pain point.
Thursday, 13 June 2019


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In this reference guide, you'll learn more about the intricacies of the signal & slot concept in PyQt. This concept is very important when dealing with GUI development and while it's beautifully solved by Qt, it can be a little confusing in the beginning.
Thursday, 13 June 2019


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Our second tutorial in the QGIS plugin development series focuses on QGIS and user interaction. You will learn how capture a point clicked on the map canvas by the user, a few practical examples of the concept of signals & slots in PyQt, and then some more.
Wednesday, 29 May 2019


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If you want to know how to setup Valhalla on your Ubuntu with elevation support, then go ahead with this tutorial. By the end you will have had to prepare your Valhalla setup with all necessary packages and dependencies to finally be able to use Valhalla with elevation support.
Tuesday, 21 May 2019


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In this tutorial you will learn how to use ReactJS, Redux and Leaflet to create a simple but powerful map application which is capable of consuming the HERE isochrones API.
Sunday, 28 April 2019


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If you simply want to run Valhalla within a docker container, then feel free to dive into this tutorial. However, to understand the individual steps being called in the provided Dockerfile please refer to part 1 and 2 of this Valhalla Routing series of tutorials.
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