Title:
VIRTUAL ENVIRONMENT DATA BROWSER
Document Type and Number:
WIPO Patent Application WO1998054636
Kind Code:
A3
Abstract:
A data browser is described for accessing data defining virtual environments via the Internet/World Wide Web. Where the data defining objects to appear within the virtual environment is in the form of discrete geometrical components, with each object being arranged as a hierarchy linking the components and with transformations (T0, T1, T2, T3) specifying the translation of vertex locations for a child component to the coordinate system of its parent, the browser maintains a record of previously calculated transformation products (T0. T1). Each time the browser updates its generated representation of the virtual environment it checks which components have moved, and hence which transformation multiplications must be updated, and otherwise recalls the result of the previous calculation.
Inventors:
GALLERY RICHARD DAVID (GB)
HERON DALE ROBERT (GB)
VERHAGEN MICHAEL KONSTANTIJN (GB)
THORNE CHRISTOPHER (GB)
HERON DALE ROBERT (GB)
VERHAGEN MICHAEL KONSTANTIJN (GB)
THORNE CHRISTOPHER (GB)
Application Number:
PCT/IB1998/000835
Publication Date:
March 25, 1999
Filing Date:
May 29, 1998
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
PHILIPS SVENSKA AB (SE)
GALLERY RICHARD DAVID (GB)
HERON DALE ROBERT (GB)
VERHAGEN MICHAEL KONSTANTIJN (GB)
THORNE CHRISTOPHER (GB)
PHILIPS SVENSKA AB (SE)
GALLERY RICHARD DAVID (GB)
HERON DALE ROBERT (GB)
VERHAGEN MICHAEL KONSTANTIJN (GB)
THORNE CHRISTOPHER (GB)
International Classes:
G06F3/00; G06F17/30; G06T17/00; (IPC1-7): G06F3/00; G06F17/30
Foreign References:
| US5588104A | 1996-12-24 | |||
| EP0697613A2 | 1996-02-21 |
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