Digital Geography

Donut Polygons in QGIS, ArcMap, ArcGIS Pro and geoJSON

Donut Polygons were the nightmare in first GIS courses. At the very moment I can’t remember why but the concept of an inner and an outer part makes total sense in the real world (house with a patio, lakes with islands, Rome with the Vatican City) yet the creation of those was never the covered in the basic “how to edit”-classes. So how can we create them with QGIS, ArcMap as well as ArcGIS Pro and geoJSON? In this tutorial I will cover this basic task.

Maps Marker – WordPress Map Plugin

What if you want to build your own webmap on your WordPress blog without any knowledge about javaScript, frontend web development and geojsons? You can use a plugin! In this article I’ll give you a short introduction about “Maps Marker”, a popular tool to create webmaps within seconds. First I’ll show you how to install Maps Marker, after that we create a first webmap with a test marker.

planlauf/TERRAIN – a lightweight 3D DEM viewer for daily usage

The visualization and interpolation of 3D terrain (point) data (DEM or DOM) could be a hard task for current GIS software and small to midsize hardware. One thing is the huge possible amount of points and their precision when it comes to airborne or terrestrial LIDAR data with point density < 5m and big areas of interest. Another thing is the rendering performance once the user started his exploration of such a huge dataset. There are several open source and proprietary software solutions and specialized software for several industries. In the following I’ll introduce you to planlauf/TERRAIN, a lightweight DEM…

Map your family tree with Gramps and QGIS – how to digitize and visualize genealogy data

As I realized that I have a really huge family I was keen to digitize the current family tree and get into contact to my relatives. For getting things done, I choose the open source genealogy software Gramps to record all offline information about my family members and create a database as base for further investigations, updates and of course spatial visualization. After that, I exported a database view and visualized it with QGIS.

Do you need open data? Ask for it.

The well-known Q/A-forum StackExchange has started a new “Open Data” section. Users can ask for needed datasets and get feedback from the great StackExchange community. Especially for our GIS and webmapping readers this is good news. Often the methodology isn’t the core problem of dealing with scientific or business issues. Often it’s more or less a lack of proper open datasets to run visualization and analyses.

Pokémon Go: 3 Maps to find Pokémon easily

Until now I tried to ignore the worldwide Pokémon Go hype. But as the mobile game consists more or less of a map and some geo-related content, we should mention it here on Produced by Niantic, Pokémon Go is an augmented reality game where the player can gather or breed Pokémon and fight against other players on real world map. Some functionalities are also just working when you are walking, so that it’s important to stay outside, which could have a positive impact on health of video gamers 🙂 Here you can download the Pokémon Go app for iOS…

Mapbox updated their mapstyles

Today I received the newsletter from Mapbox with interesting screenshots of their new mapstyles. The company convinced many users with nice basemap styles already in the past. Now they updated their background mapstyles for webmap usage. Just have a look: All pictures are from Mapbox. In my opinion the new styles fits good for modern map applications. If you’re interested in other background maps, check out this article – Map Compare. If you’re interested in getting more information about Mapbox styles, just visit this Mapbox article.

HERE maps: Free navigation apps for web and smartphones

Navigating from a to b is really easy today. Once you have a power connector in your car (bike, bicycle, scooter or whatever) and a mounting point, smartphones are absolutely comparable with common navigation units for vehicles. App sharing onto new car infotainment systems makes it easy to choose your preferred navigation software also in current car models, if you’re not satisfied with the build in software. Also on your desktop many applications will guide you to your preferred destination. It’s time to check out the current navigation solutions on the market.

Geospatial World: geospatial industry magazine for free

The geospatial media industry is really negligible. Some blogs here, some magazines there. Luckily their authors are very hard-working. This article will introduce a magazine called “Geospatial World” (formerly known as GIS Development magazine). Since 1997 the magazine investigates geo-related topics and writes about present viewpoints of experts, worldnews, case studies, reviews, upcoming technologies and more.

The QGIS survey needs input!

The free and open source gis QGIS started an user survey on its online webpage. The project needs your input to get the best necessary community information for prioritising future adjustments and developments.