Interaction with a three-dimensional computer model

Details Interaction with a three-dimensional computer model Interaction with a three-dimensional computer model

G - Physics

06

F

G06F 3/00 (2006.01) G06F 3/033 (2006.01) G06F 17/50 (2006.01) G06T 17/40 (2006.01)

Patent

CA 2496773

A system is presented permitting a user to interact a three-dimensional model. The system displays an image of the model in a workspace. A processor of the system defines (i) a virtual plane intersecting with the displayed model and (ii) a correspondence between the virtual plane and a surface. The user positions a tool on the surface to select a point on that surface, and the corresponding position on the virtual plane defines a position in the model in which a change to the model should be made. Since the user moves the tool on the surface, the positioning of the tool is accurate. In particular, the tool is not liable to be jogged away from its desired location if the user operates a control device (such as a button) on the tool.

L'invention concerne un système permettant à un utilisateur d'interagir avec un modèle tridimensionnel. Ledit système affiche une image du modèle dans un espace de travail. Un processeur du système définit (i) un plan virtuel coupant le modèle affiché et (ii) une correspondance entre le plan virtuel et une surface. L'utilisateur positionne un outil sur la surface pour sélectionner un point sur celle-ci, et la position correspondante sur ledit plan virtuel définit une position dans le modèle à modifier. Etant donné que l'utilisateur déplace l'outil sur la surface, le positionnement de l'outil est précis. En particulier, l'outil ne peut être délogé de son emplacement voulu si l'utilisateur actionne un dispositif de commande (tel qu'un bouton) sur l'outil.

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