calculate a cylindrical gradient
| Parameter | Type | Description |
|---|---|---|
| model | dojox.gfx3d.lighting.Model | color model |
| material | Object | defines visual properties |
| center | Object | center of the cylinder's bottom |
| radius | Number | radius of the cylinder |
| from | Number | from position in radians |
| to | Number | from position in radians |
| matrix | Object | the cumulative transformation matrix |
See the dojox/gfx3d/gradient reference documentation for more information.