The combination of technology and art is a special "trademark" of the city of Linz, where among other things the renowned Ars Electronica Center is also domiciled. The desire to present the city in a forward-looking and attractive form led in 2007 to the creation of the digital 3D city model. From the very beginning, the city model was developed, continued and visualized with the CityGRID® system. The city center is represented by a detailed, photogrammetric model, which is interactively textured with retouched hand-held images. In addition to this, there is an automatically generated, generalised model, which is based on sample roof shapes. The automatic texturing of this surface covering model was also carried out using the CityGRID® system.

Project Parameters

• Evaluation: Automated, photogrammetric in the core area
• Detail: roofing roofing and main roofing with roofing details in the core area
• Project start: 2007
• Number of buildings: ~30.000
• Roof overhang: Partial
• Cadastre-sharp: Partial