Introducing blending operations in feature models

We describe the implementation of a blending facility in the context of a feature modelling system where solid and feature‐based modelling operations can be utilized in parallel during the design process of a part. The definition of blends can be done in a graphical user interface by selecting edges to be blended. Feature recognition of blends facilitates the definition process of blends. Alternatively, a special feature editor can be used to add blends to the feature model. The particular implementation style chosen gives rise to aflexible and easy‐to‐use modelling tool.

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