06-02, 13:30–14:00 (Europe/Stockholm), Birollen
In 2019, the Portuguese national mapping agency updated the standards and technical specifications for topographic mapping to leverage recent technological advancements and better meet the evolving needs of geographical information users. This revision also strengthens alignment with the INSPIRE Directive, facilitating the harmonization of national geographic data.
As a result, all newly produced topographic maps must be represented as geographic features in a relational database. Since then, all topographic mapping submissions for approval have been delivered to the agency as PostGIS backups.
Storing this data in PostGIS unlocks new possibilities, including automated validation workflows. Continuous integration workflows can now check dozens of validation rules each time new cartographic data is added to the approval database.
In this presentation, we will demonstrate an automated workflow that transforms PostGIS-stored topographic data into high-quality web maps. This fully automated process ensures that as soon as new cartographic data is inserted into PostGIS, the following steps are triggered:
* Creating a new QGIS project with all layers organized into 10 thematic groups
* Assigning one or more styles to each feature class
* Generating printable reports
* Creating a 2D web interface for visualization
* Creating a 3D web interface for enhanced visualization of 3D features
* Configuring QGIS Server to serve all layers
* Setting up MapProxy to handle complex rendering tasks
The final output is an interactive web map that effectively visualizes topographic data. Comprehensive documentation will be provided to ensure reproducibility for other datasets. Additionally, a 90-minute workshop is being prepared to complement this presentation.
Jorge Gustavo has a PhD in Computer Science. He is Assistant Professor at the Computer Science Department at Minho University, where he teaches and researches on Geographic Information System and Science. Jorge has contributed to several open source projects, like QGIS and GDAL. With former PhD students he started Geomaster, a company that provides professional services on top of open source GIS software.