Abstract
A new approach to feature modeling is presented. It supports multiple feature views of a product, each with its own feature model. Consistency between the views is maintained by performing multiple-way feature conversion. A product model has been defined that contains the different views and their feature models. The feature models of the different views are linked by the product geometry, which is represented by a cellular model.
For supporting multiple views, two types of operations are available that correspond with two types of feature conversions. Firstly, it is possible to open a view. The opened view is made geometrically consistent with the other views. Secondly, in line with the design by features approach, it is possible to edit a view. Changes made in one view are reflected in the other views. This paper focuses on opening a view. The proposed method provides a way to generically support different views.
A view is opened, i.e. a new feature model is built automatically, using the central cellular model, the feature classes available in the view, and the so-called strategy of a view. Each view has its own strategy that prescribes the feature model structure. It thus ensures that the feature model built is a good feature interpretation for the view.
A strategy prescribes feature classes in a certain order; instances of these classes are sought in the cellular model. Topological characteristics of a feature shape are used to generate the largest feature shape that satisfies the feature’s validity conditions. The method can deal with feature intersections.
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© 1997 IFIP International Federation for Information Processing
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Jan de Kraker, K., Dohmen, M., Bronsvoort, W.F. (1997). Multiple-way feature conversion - opening a view. In: Pratt, M.J., Sriram, R.D., Wozny, M.J. (eds) Product Modeling for Computer Integrated Design and Manufacture. IFIP Advances in Information and Communication Technology. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35187-2_17
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DOI: https://doi.org/10.1007/978-0-387-35187-2_17
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