Open-source projects

Here you can find various software projects that were created by our group members and are available under open-source licenses. Before using the software, make sure that the license of a project suits your use case.

All of projects are available on our GitHub group page.

A publication is added where applicable. If you use our code for a scientific project, please cite the corresponding article.

3D Mesh Annotator

3D mesh annotation tool for labelling semantics of urban scenes.

3DBM

Elevating geometric analysis for urban morphology, solar potential, CFD etc to the next level.

3dfier

Takes 2D GIS datasets and "3dfies" them by lifting each polygon to its height (obtained with LiDAR)

AdTree

Reconstructing accurate and detailed 3D tree models from point clouds

azul

A fast 3D city model viewer for macOS

Carriageway Creator

Create carriageways from centerlines using OSM and areal datasets.

City3D

Large-scale building reconstruction from airborne lidar point clouds

City4CFD

Automatic reconstruction of 3D city geometries tailored for microscale urban flow simulations

CityGML2OBJs

A robust semantic-aware utility to convert CityGML data to OBJ, featuring decoupling of objects and conversion of attributes to colours.

cjio

Python CLI to process and manipulate CityJSON files

Easy3D

A lightweight, easy-to-use, and efficient C++ library for processing and rendering 3D data

Geoflow (3DBAG)

Large-scale automatic building reconstruction tool used to generate 3DBAG

lod2plus

Automatic generation of simple interiors for CityGML LOD2

masbcpp

C++ implementation of the shrinking ball algorithm to estimate the 3D Medial Axis from pointclouds.

MVStudio

An integrated SfM (Structure from Motion) and MVS (Multi-View Stereo) solution

ninja

A browser viewer and editor for CityJSON files

PolyFit

Piecewise planar object (e.g., buildings) reconstruction from point clouds. Also available in CGAL

pprepair

Planar partition repair. It ensures that a set of polygons form a valid planar partition, made of valid polygons and having no gaps or overlaps.

prepair

Automatic repair of GIS polygons according to the OGC Simple Features and ISO 19107 rules.

Random3Dcity

A procedural modelling engine natively supporting CityGML, and capable of generating 392 representations of a single building.

Solar3Dcity

A simple utility to estimate the yearly solar irradiation of buildings in CityGML

val3dity

Geometric validation of 3D primitives according to ISO 19107.