QGIS Open Day – 26 March 2021




Input and Mergin: collect data, sync, and collaborate with ease

“Input app is a free and open-source mobile app for Android and iOS. Input app is based on QGIS with a simplified and intuitive interface for easy data collection in the field.

The app comes with a built-in synchronisation tool, called Mergin service, enabling users to collaboratively edit the same data. In addition, the Mergin service can:

1- be accessed in QGIS, through a plugin to sync data from your PC

2- linked to a Postgresql/PostGIS database for offline use

3- generate work-packages for efficient survey “team management”

Host: Open Day team

Using QGIS, Input app, Mergin, and Metabase to conduct a WASH survey in the Waterberg

A practical example of how QGIS, the Input app, Mergin, mergin-db-sync and Metabase were used to conduct a WASH (WAter, Sanitation and Hygiene) survey in the Waterberg district of Limpopo Province, South Africa. During 2020, Kartoza participated in a USAID Resilient Waters funded project to produce a Strategic Environmental Management Plan (SEMP) for the Waterberg Biosphere Reserve (WBR). Besides all the GIS analysis and map production we did with QGIS, PostGIS, GRASS and other FOSS tools, we were called into support the social component of the project. Biosphere Reserves are part of the UNESCO Mand and the Biosphere programme, which means human impacts and livelihoods are a critical component of Biosphere Reserve plans and objectives. The WBR supports a huge tourism industry and has many wealthy landowners yet many human settlements lack sufficient access to water and sanitation and still depend directly on natural resources for heating and cooking. We set up and managed a survey using these tools and trained three field workers. They spent three months in the field interviewing two thousand people in sixty settlements, with all survey data successfully synchronising so the project team could analyse and visualise it.

Using QGIS and a laser cutter to make 3D contour models

Saba 3D model in plywood

A bit of fun using QGIS to generate contour maps and other features and then converting the larger into a 3D model with the help of a laser cutter.

Seamless fieldwork with QField & QFieldCloud

QField is an application that focuses on efficiently getting GIS fieldwork done. QField combines a minimal design with sophisticated technology to get data from the field to the office in a comfortable and easy way. QField works with QGIS allowing users to set up maps and forms in QGIS on their workstation, and deploy those in the field. Leveraging QGIS’ data providers – OGR, GDAL, PostGIS, and more – QField supports a wide variety of vector and raster formats that can be locally stored or accessed remotely and synchronized with WiFi, USB cable or mobile network.