Google Summer of Code (GSoC) is a programme that has been set up by Google to introduce students to open source software development. It links students to open source organisations such as OSGeo.

We are very happy that we had two great students working on gvSIG-GSoC projects with us this summer. GSoC 2019 has just finished, so here you can find out about our students and their projects.

Creation of new topological rules in gvSIG desktop

The project consists of the creation of three new topological rules in the gvSIG desktop toolbox. These rules are ” Must be disjoint ”, “Must not have dangles” and “Must be larger than cluster tolerance” that will help to verify the integrity of the spatial information, validate the representations and correct possible errors of the point, linear and poligonal geometries. Definitely, ensure the quality of geographic data with open source software.

Student: Héctor Tundidor 

More info: https://github.com/hecnita/gvsig-gsoc2019-topology/wiki/Creation-of-new-topological-rules-in-gvSIG-desktop

Topological rules:

• Must be disjoint
• Must not have dangles
• Must be larger than cluster tolerance

Repository: https://github.com/hecnita/gvsig-gsoc2019-topology

New rules for the Topology Framework in gvSIG Desktop

A new topology toolbox. This tool provides a group of integrity rules that check the validation of the geometries relationship in the data. A new topology data model can be created for each project. This toolbox provides a new set of tools to navigate, find and fix validation errors different from each topology rule. This project analyzes, implement and optimize a new set of rules that will be incorporated into this framework. This tools can be created in Java or in Jython through the Scripting composer tool.

Student: Mauro Carlevaro

More info: https://github.com/Maureque/gvsig-gsoc2019-topology/wiki/1.-New-rules-for-the-Topology-Framework-in-gvSIG-Desktop

Topological rules:

• Must be coincident with
• Must be covered by endpoint of
• Points must be covered by line
• Must be properly inside polygons
• Contains point.

Repository: https://github.com/Maureque/gvsig-gsoc2019-topology