Computer graphics variable transformation interface
US8379030B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2008 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Dec 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2200/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A transformation region is displayed around a selection of knots defining one or more computer graphics variable curves. The transformation region includes transformation handles enabling the modification of the transformation region shape. The transformation region defines an envelope of the curves. Modifying the shape of the transformation region defines a new envelope of the curves. The input and/or output values of knots are scaled to match the modified envelope so that the computer graphics variable remains a function of its input variables. Associated tangent handles of the knots are scaled proportional to the knot value. The transformation region can include a retiming curve specifying a remapping of input variable values. Points on the retiming curve below this diagonal remap associated knots to lower input values. Point on the retiming curve above the diagonal remap associated knots to higher input values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.