Product Information
- Author
- Herausgeber FKM
- EAN
- 4250697512539
- Edition
- 1999
- Delivery time
- next business day
Nennmaßgetreue Synthese von 3D-Volumenmodellen aus 2D-Daten technischer Zeichnungen
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Description
Nennmaßgetreue Synthese von 3D-Volumenmodellen aus 2D-Daten technischer Zeichnungen
FKM 1999
Issue No. 242
Project No. 215
Abstract:
In mechanical engineering, there is a large number of conventionally created drawings whose conversion to CAD systems is a prerequisite for the future standardized management and use of engineering data in industry. Such electronic archiving is desirable in terms of liability and patent law, as there are no signs of ageing as with conventional archiving on paper. At the same time, a considerable percentage of drawings are still created using first-generation CAD systems. These CAD systems are not able to provide a parametric CAD model and only offer very limited options for reflecting semantic information. However, these modeling options are required, for example, for the efficient integration of design and calculation or for variant design. The object of the research project is the development of methods which, starting from purely geometric information and using dimension entries, automatically interpret and semantically store computer-internal data models so that 3D CAD models are generated as a result of the transformation. After transformation of the vectorized data into the internal database of the developed recognition system, the contour geometry is segmented. The drawing can be parameterized by interpreting dimension entries. An adaptive text recognition module enables the information from the title block to be made available for the management of the drawings on the one hand, and the dimensional data required for geometry correction to be interpreted directly on the other. The interpreted views and sections of the technical drawing are fed into a reconstruction algorithm that generates a 3D model. The model is exported in STEP format and can subsequently be further processed with various CAx systems. The objective of the research project was achieved. Scope of report:
30 p., 15 fig., 1 tab., 10 lit. Start of work:
01.08.1996 End of work:
31.12.1998 Funding body:
BMWi / AIF-Nr. 10783 B Research Unit I:
Institute for Machine Elements and Machine Design Dresden University of Technology Supervisor:
Prof. Dr.-Ing. habil. J. Klose Dipl.-Ing. S. Römer, Dipl.-Phys. E. Hahn Dr.-Ing. J. Haufe Research Center II:
Institute for Computer Applications in Planning and Design University of Karlsruhe (TH) Supervisor: Prof. Dr.-Ing. H. Grabowski Dipl.-Ing. C. Liu Chairman of the working group:
Dipl.-Math. D. Schulte Friedrich Krupp AG Chairman of the advisory board:
Prof. Dr.-Ing. Kipphan, Heidelberger Druckmaschinen AG, Heidelberg
Issue No. 242
Project No. 215
Abstract:
In mechanical engineering, there is a large number of conventionally created drawings whose conversion to CAD systems is a prerequisite for the future standardized management and use of engineering data in industry. Such electronic archiving is desirable in terms of liability and patent law, as there are no signs of ageing as with conventional archiving on paper. At the same time, a considerable percentage of drawings are still created using first-generation CAD systems. These CAD systems are not able to provide a parametric CAD model and only offer very limited options for reflecting semantic information. However, these modeling options are required, for example, for the efficient integration of design and calculation or for variant design. The object of the research project is the development of methods which, starting from purely geometric information and using dimension entries, automatically interpret and semantically store computer-internal data models so that 3D CAD models are generated as a result of the transformation. After transformation of the vectorized data into the internal database of the developed recognition system, the contour geometry is segmented. The drawing can be parameterized by interpreting dimension entries. An adaptive text recognition module enables the information from the title block to be made available for the management of the drawings on the one hand, and the dimensional data required for geometry correction to be interpreted directly on the other. The interpreted views and sections of the technical drawing are fed into a reconstruction algorithm that generates a 3D model. The model is exported in STEP format and can subsequently be further processed with various CAx systems. The objective of the research project was achieved. Scope of report:
30 p., 15 fig., 1 tab., 10 lit. Start of work:
01.08.1996 End of work:
31.12.1998 Funding body:
BMWi / AIF-Nr. 10783 B Research Unit I:
Institute for Machine Elements and Machine Design Dresden University of Technology Supervisor:
Prof. Dr.-Ing. habil. J. Klose Dipl.-Ing. S. Römer, Dipl.-Phys. E. Hahn Dr.-Ing. J. Haufe Research Center II:
Institute for Computer Applications in Planning and Design University of Karlsruhe (TH) Supervisor: Prof. Dr.-Ing. H. Grabowski Dipl.-Ing. C. Liu Chairman of the working group:
Dipl.-Math. D. Schulte Friedrich Krupp AG Chairman of the advisory board:
Prof. Dr.-Ing. Kipphan, Heidelberger Druckmaschinen AG, Heidelberg
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