Recently, three-dimensional CAD systems based on feature-based solid modelling techniques have been widely used for product design. However, when part models associated with features are used in various downstream applications, simplified models at various levels of detail (LODs) are frequently more desirable than the full details of the parts. One challenge is to generate valid models at various LODs after an arbitrary rearrangement of features using to a certain LOD criterion, because composite Boolean operations consisting of union and subtraction are not commutative. This paper proposes an algorithm for feature-based multi-resolution modelling based on the effective volumes of features. This algorithm guarantees the same resulting shape and the reasonable intermediate LOD models for an arbitrary rearrangement of the features, regardless of whether feature types are additive or subtractive. This characteristic enables various LOD criteria to be used for a wide range of applications.
Recently, Lee, S. H. REF introduced the concept of the effective volume of a feature to provide valid solids for an arbitrary rearrangement of features, regardless of feature type.
Multi-Resolution Modelling for Feature-Based Solid Models Using the Effective Volumes of Features
Computer-aided Design and Applications
Computer Science