Geomaat is designing a virtual representation of Ten Post in collaboration with Eyefly.

Commissioned by the municipality of Groningen, Geomaat, together with sister company Eyefly created a Digital Twin in including a mesh of the current situation of Ten Post. The project is set up as a pilot, this so that the municipality can get acquainted with 3D Geomaterial and its possibilities.

As part of the Interreg North Sea Region European Fund, Like! Innovation Project, start Groningen municipality established the project: 3D Rebuilding Ten Post. The goal of the project is to create a 3D-Digital Twin (virtual representation) of the village of Ten Post. This 3D model can be used for the benefit of citizen participation, communication, planning and policy making of the municipality.

Digital Twin

Using an acquired pointcloud and the 100 Megapixel photos taken, Geomaat and Eyefly created a Digital Twin of the village of Ten Post. This Digital Twin consists of: a mesh, pointcloud with buildings in LOD 2.0 and a Grid of the ground level.

Based on the photos taken, Eyefly created the mesh, they did this using the technique of photogrammetry. About 3000 photos were used for the model. Geomaat further processed the collected data into an accurate pointcloud, in which the buildings in LOD 2.0 were worked out. Geomaat also created the ground level in Grid.

A Digital Twin is very useful for the municipality because all kinds of calculations can be performed on it regarding building processes and other insertions. Many different things can be done with a Digital Twin of a town or village.

View here the animation of the mesh delivered to the municipality of Groningen

Implementation

Geomaat made its own measurements to place the survey data flown in by an aircraft at the correct horizontal position (RD) and vertical position (NAP). These self-collected data were also used as a check for the aircraft data.

The aircraft captured a 3D point cloud (point cloud) through a so-called 'Lidar' system. In addition, the aircraft was equipped with 5, 100 megapixel cameras placed at different angles to capture as much detail as possible.

Lots of knowledge in house

Geomaat has extensive knowledge about pointclouds and the various end products. This allows them to test pointclouds for accuracy and reliability. They can do this for both recently acquired data and open data. Their sister company Eyefly complements them nicely and has a lot of knowledge about photogrammetry and meshing. This made it a nice collaboration between Eyefly and Geomaat.

Innovative

The whole project can be seen as one big innovation, this because not many cities have a 3D model yet. There are parties who work with 'open data' (from sites such as: Pdok.nl), a disadvantage is that this data is never as dense, current and recent as self-collected data. The Digital Twin created of the village of Ten Post is completely current.Within a month, Geomaat delivered the entire project to the municipality of Groningen.

More information about Geomaat can be found at www.geomaat.nl