A VR-CAD Data Model for Immersive Design

Investigating Collaborative Exploration of Design Alternatives on a Wall-Sized Display

“…Martin et al [36] presented a data pipeline which allows CAD data modification from a virtual reality platform. Based on this work, Okuya et al [39] proposed a shape-based interaction, which enables non-CAD experts to modify parameter values of CAD models by simply pushing and pulling their 3D shape.…”

“…Previous works explored 3D visualization to reduce time and costs for manufacturing physical mock-ups in product development process [29,49]. While many virtual reality systems can display CAD data [7,42,43,27,46], only a few can modify native data from commercial CAD systems [36,39]. Other works addressed remote collaboration: vehicle design reviews between remote CAVE [30], collaborative material/texture editions [11], or object manipulations [35].…”

ShapeGuide: Shape-Based 3D Interaction for Parameter Modification of Native CAD Data

“…It aimed to allow an implicit edition of the CHG when users interact with B-Rep of the objects in the virtual environment. Martin et al ( 2017 ) extended this model with an encapsulation technique to apply it on the CHG nodes and the B-Rep elements of most CAD systems used by industry. A proof of concept, named cRea-VR, has been implemented onto CATIA V5® (Dassault Systèmes), allowing the users to implicitly access parameter values of relevant CHG nodes from a surface selection in the virtual environment.…”

“…Effective co-located 3D interaction techniques have been studied for aesthetic design, and some research works attempted to apply it onto solid modeling. Yet, these interaction techniques have not been used to live modifications of native CAD data in an immersive environment despite some recent advances in VR-CAD integration (Martin et al, 2017 ). As the data structure of CAD objects can be complex and depends on CAD systems, it is difficult to determine the object deformation from a given parameter change.…”

“…A previous study enabled to import and directly change parameter values of native CAD data in an immersive environment using one dimensional scrolling (Martin et al, 2017 ). However, this interaction technique was not consistent with 3D shape deformation because the modifications were achieved in parametric space.…”