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dc.contributor.authorFa, Mingxianen_US
dc.contributor.authorFernando, Terrenceen_US
dc.contributor.authorDew, Peter M.en_US
dc.date.accessioned2014-10-21T07:25:37Z
dc.date.available2014-10-21T07:25:37Z
dc.date.issued1993en_US
dc.identifier.issn1467-8659en_US
dc.identifier.urihttp://dx.doi.org/10.1111/1467-8659.1230237en_US
dc.description.abstractThis paper presents a novel constraint-based 3D manipulation approach to interactive constraint-based solid modelling. This approach employs a constraint recognition process to automatically recognise assembly relationships and geometric constraints between entities from 3D manipulation. A technique referred to as allowable motion is used to achieve accurate 3D positioning of a solid model by automatically constraining its 3D manipulation without menu interaction. A set of virtual design tools, which can be used to construct constraint-based solid models within a virtual environment, are also supported. These tools have been implemented as functional 3D objects associated with several pre-defined modelling functions to simulate physical tools such as a drilling tool and T-square. They can be directly manipulated by the user, and precisely positioned relative to other solid models through the constraint-based 3D manipulation approach. Their modelling functions can be automatically triggered, depending upon their associated constraints and the user s manipulation manner. A prototype system has been implemented to demonstrate the feasibility of these techniques for model construction and assembly operations.en_US
dc.publisherBlackwell Science Ltd and the Eurographics Associationen_US
dc.titleDirect 3D Manipulation Techniques for Interactive Constraint-based Solid Modellingen_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume12en_US
dc.description.number3en_US
dc.identifier.doi10.1111/1467-8659.1230237en_US
dc.identifier.pages237-248en_US


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