LoD2 Building Derivation Bavaria
The Bavarian Office for Surveying and Spatial Information (LVG) set the goal of building an extensive 3D building database of the LoD2 for the more than 8 million buildings located in Bavaria confirmed in the land register. In this project, the LVG decided to use our BuildingReconstruction software system. The significant selection criteria for this project, were the possibility of being able to create a 3D building completely based on the floor plans, the high rate of initial recognition as well as the high efficiency when editing the building. In addition virtualcitySYSTEMS had already implemented a variety of client-specific customizations and workflow optimizations for the Bavarian LVG, e.g. the derivation of ALKIS-compliant components from LoD2 building models.
Berlin Business Location Center
Since May 2009, virtualcitySYSTEMS GmbH has been serving the business portal of the Berlin Business Location Center (BLC) at the request of Berlin Partner GmbH. As an information system for the Berlin business development, the BLC supports investors with the settlement process and advises Berlin companies with their external business activities. As an editorial and technical supporter of the BLC, we ensure a smooth flow of processes. This includes the administration, maintenance and care of the systems for the Internet introduction as well as integrated applications and their interfaces. Our programs and supports the web-based services of BLC: a database-supported real estate portal, the spatial information system „Wirtschaftsatlas Berlin“ as well as the extensive 3D city model of Berlin.
The Berlin Solaratlas shows the building-specific solar potential of the city in a 2D and in a 3D view. Real estate owners and investors can acquire information, through this database, as to whether or not the roof of a building is suitable for the use of solar energy and whether or not the investment is worth it. Possible power generation, CO2 savings and investment costs readily become available here.
3D data for the GDI-HH and INSPIRE
The city of Hamburg uses 3D data to solve various tasks. These basic and technical 3D geo data should be managed, provided, linked, and presented in a timely and interoperable manner within the spatial data infrastructure of Hamburg. Furthermore, the guideline for creating a spatial data infrastructure in the European Community (INSPIRE) which requires offering 3D data via certain standardized web services. Respective solutions were developed by virtualcitySYSTEMS for these requirements. An entire system comprising a database, web services, and web visualization portal was provided, which fully met the required services of the FHH in the intranet.
3D infrastructure for the GEOINFO
GEOINFO supplemented its previous GIS solution around a 3D portal and relies on virtualcitySUITE, our system solution for managing and distributing as well as web-based publication of 3D data. The core component is the virtualcityPUBLISHER, with which 3D web mapping applications can be created based on 3DCityDB. Another project component was the installation and configuration of the virtualcityDATABASE, a plug-in for the open source 3DCityDB for provisioning of basic management operations. Performance content was ultimately data provisioning services based on FME. The basis for the implemented infrastructure were scripts available at GEOINFO for the automated control, and execution of FME workbenches and the virtualcityWAREHOUSE solution, which enables data provisioning from the 3DCityDB based on FME.
3D infrastructure Vienna
Based on the development and experience from the 3D SDI pilot for the federal state of Hamburg, virtualcitySYSTEMS has developed and markets virtualcitySUITE, a GeoIT solution for managing and distributing CityGML data.
This solution has been successfully implemented for the city of Vienna. It enables the city to maintain their 3D City Model in a central CityGML database and publish it as 3D Web Mapping application.
3D SDI pilot for IDA, Singapore
Within a pilot project virtualcitySYSTEMS implemented the virtualcitySUITE at the clients office and did extensive training with the end-user about CityGML and urban information modelling in general. One major goal was also the conversion and integration of already existent high detailed 3D building models into the 3D SDI solution.
The Bavarian Surveying Authority currently concentrates on the creation of an extensive 3D building model in the level of detail 2 (LoD2). The building floor plans from the Digital Cadastral Map (DFK) and the data from Airborne Laserscanning serve as the basis for modeling. The buildings receive ALKIS®-compliant standard roof forms and described attributes. For the creation, management, and distribution of data, the Bavarian Surveying Authority relies on software solutions from virtualcitySYSTEMS.
The Berlin Partner for Economics and Technologies GmbH is a company for business development and local marketing in Berlin. It operates the Berlin Business Location Center (BLC) business portal on the Internet and in two presentation rooms. The BLC compiles important information about Berlin for companies and investors. Buildings, areas, and places are mapped by a virtual city model. As of May 2009, virtualcitySYSTEMS GmbH has been maintaining the Berlin Business Location Center business portal on behalf of Berlin Partner for Economics and Technologies GmbH.
Hanseatic City of Hamburg
The Hanseatic city of Hamburg uses 3D data to solve various tasks. In the process, the state office for spatial information and surveying provides the 3D city model as the basis for any planning. The state office for spatial information and surveying is an establishment of the Hamburg Administration Department under the supervision of the Authority for City Development and Environment.
Magistrate of Vienna
The City Surveying Office in Vienna is the central service office for all technical surveying tasks that occur within the jurisdiction of the city administration. The spatial information created by them, provides essential planning for the entire city area of Vienna. Thus, a 3D city model is particularly an important pillar for modern city planning and the basis of many applications.
City of Zurich
Geomatik + Vermessung (GeoZ) is responsible for surveying the city of Zurich and ensures that the data of the official survey are presently available as the basis for all spatial information systems (SIS) of the city of Zurich and as a part of the real estate registry. In addition, GeoZ offers a comprehensive service plan for everything dealing with the 3D computer-aided virtual city model of Zurich. It contains the terrain, over 50,000 buildings in various levels of detail as well as walls and bridges and is available extensively across the entire district. For the storage of data, GeoZ is opted for CityGML and the virtualcityDATABASE.
Surveying Office Frankfurt am Main
The core tasks of the City Surveying Office are the creation and care of an official collection of maps and plans in analog and digital forms. Additionally, with the help of the Internet technology, a spatial information system is managed, which links the official basic spatial data with local specialist applications and allows their use with the help of modern spatial data portals. Moreover, the City Surveying Office has assumed the complex task of developing a digital, homogenous, and standardized 3D city model for the entire city of Frankfurt am Main due to its technical competence in the 2D spatial data area.
RHEINMETALL DEFENCE ELECTRONICS
Business Simulation and Training
Simulators protect the original devices from wear and tear and simultaneously enable training in extreme situations as they would be rarely possible even with common exercises. The competencies of Rheinmetall Defense in the area of military simulation technology comprise practically of all training tasks in conjunction with weapons and management systems. In addition, the group offers simulation systems for many civil applications, including driving simulators for trucks and trains.
IKT Linz GmbH
Spatial Data Management (GEO)
The GEO department is responsible for the collection, procurement, and provisioning of spatial data for the city of Linz. In this context, the emphasis has been on creation of the city plan, processing of spatial data in WebGIS and the modeling of the digital 3D city model of Linz. In addition to photogrammetric methods, IKT Linz GmbH also uses the BuildingReconstruction software from virtualcitySYSTEMS for the efficient collection of 3D building models made of dense point clouds. In this manner, implementation of data is being done in significantly less time.
Since 1998, RIWA GmbH provides services to administration offices, industrial parks, and energy providers in the area of spatial information. More than 400 clients trust us with their valuable spatial data and value the comprehensive services that we offer. The collection, visualization, updating, and management of spatial data are considered the specialties of our qualified team of engineers and technicians from the areas of surveying, cartography, geography, spatial information, construction, electrical engineering, IT, and business management.
City of Salzburg
Information and Communications Technology
Magistrate department 3 (IKT) is responsible for the planning, organization, provisioning, and operation of information and communications technology (IKT) in the city of Salzburg. In 2012, virtualcitySYSTEMS created an extensive 3D city model based on LiDAR data. As of 2013, IKT has been also operating with a system for using the 3D city model of Salzburg and, therefore, relies on software solutions from virtualcitySYSTEMS.
Automatic pre-processing for CAE
Common CAE tools for simulation have high requirements on data quality of 3D input data that virtual city models of the GIS world often do not match. This gap shall be closed within the scope of the project "Automatic pre-processing of virtual city models for flow simulation". virtualcitySYSTEMS will be responsible in developing a conversion process from CityGML into a format applicable for numeric simulation (e.g. ISO STEP). Project partners are the HTW Stuttgart and Beuth Hochschule Berlin.
Low Carbon City Lab
The climate-KIC funded programme initiative "Low Carbon City Lab" (LoCaL), strives to develop innovative new methods to monitor GHG emissions in cities, to provide decision making tools to city authorities based on the obtained data, and to verify implemented actions. The initiative ist a joint project of the GFZ German Research Centre for Geosciences, the South Pole Carbon Group (Zurich, Swiss), the National Physical Laboratory (London, UK), and the Laboratoire des Sciences du Climat et de l’Environnement (Gif-sur-Yvette Cedex, France). virtualcitySYSTEMS and its research partner GFZ are developing the geo-informatics tools for LoCal that will provide spatial monitoring data for use in planning tools for cities.
OGC CityGML Quality Interoparability Experiment
virtualcitySYSTEMS is taking part on the OGC CityGML QIE that has kicked off in summer 2014. Main goals in this experiment are the definition of data quality requirements for a general CityGML data specification, the development of recommanded implementation guidelines for 3D data and the provision of a suite of essential quality checking tools to carry out quality assurance on CityGML data
The 3D City Database is a result of a project called “Spatial Data Management in the Administrative Office of Berlin – Official 3D city model for Berlin” and was developed at the University of Bonn and at TU Berlin under the direction of Prof. Thomas H. Kolbe. virtualcitySYSTEMS has been supporting the this project for many years and has been actively involved in the development of the 3DCityDB since 2013.
The DETORBA project aims to simulate and analyze the effects of explosions in urban areas with a precision which previously was not possible. In the project, modern simulation techniques will be combined with the latest methods of discrete three-dimensional city modeling and provided by a user-friendly interface to achieve a greater practical relevance.
Possible scenarios are the prediction of effects of structural integrity and soundness of the urban infrastructure or safety preparations of rescue forces for evacuation in the case of bomb discoverys.
3D City Models
3D City Model of Berlin
With a mapped area of 900 square kilometers, the 3D city model of Berlin is the world largest urban spatial information database with unique contents and complexity. The approx. 550,000 fully textured buildings were achieved in automated processes from original spatial data and combined with spatial-related attribute data. Thus, the result of the 3D city model of Berlin was an efficient framework that can be integrated and visualized, as well as being used for demonstrating the multifaceted 2D and 3D information in a systematic form.
Frankfurt am Main
Within 8 weeks, virtualcitySYSTEMS had created 3D building models in LoD1 and LoD2 from LiDAR data for the City Surveying Office in Frankfurt. More than 200,000 individual buildings were processed for the 250 square kilometer city area. In order to provide the files in the format desired by the client, the integration of an automatic generation of CityGML files with flexible attribution in BuildingReconstruction was necessary. In addition, due to differences between the LiDAR data and DSGK floor plans, buildings that were not reconstructed had to be automatically documented with a coordinate reference and attributes created during the reconstruction process attached to the CityGML objects. With the developed CityGML process, it was possible to easily design the attribution desired by the clients with the respective values of the building from the DSGK.
By 2008, virtualcitySYSTEMS had created approx. 280,000 3D building models in LoD2 for the entire city of Cologne (415 square kilometers). The 3D city model aids the city of Cologne management in reaching a decision in the city planning processes and was a substantial basis for the visualization of the Cologne master plan. Through process and software optimizations, the amount of manual reworking of 20% was lowered to 15% during the 3 month project.
Approx. 170,000 3D building models in LoD1 and 2 were created for the city of Nürnberg for the Bavarian Office for Surveying. Elevation data from an aerial laser scanning with 1 point per square meter served as the basis. A great challenge in this process was creating a building model that could meet the demands for geometric precision and provide a good visual overall impression. Furthermore, functions were implemented to produce flat-roofed buildings with a standardized height in those cases that no elevation information was available in the LiDAR data. Within the scope of the project, the client confirmed that the excellent roof shape recognition of BuildingReconstruction met the requirements of the property register even with complex roofs capes. In addition, each building corresponds to its floor plan with the geometric precision of the official property register.
In 2011, virtualcitySYSTEMS conducted an extensive floor plan-orientated LoD2 modeling of all (approx.) 43,000 building, confirmed in the property register in the entire areas of the state capital of Potsdam. The delivery was made within 8 weeks as CityGML 1.0 and ESRI 3D shape with the 3D attributes ground point (x, y, z), height to eaves (z), ridge height, roof shape, as well as, with ALK object ID, ALK object name, roof pitch, and direction of ridge.
virtualcitySYSTEMS created approx. 28,000 3D building models in LoD2 for the entire city of Innsbruck. Eave heights were determined with respect to the sea level, ridge heights and roof shapes based on the given building floor plans and dense elevation data from an aerial laser scanning. A 3D structure was derived for each building object on the nature map and allocated to the respective ALK-ID. The 3D building models were delivered as ESRI 3D shapes with the attributes of ridge height, eave height, ALK-ID, roof pitch, and direction.