swf_polarview
(PHP 4)
swf_polarview — Define the viewer's position with polar coordinates
说明
void swf_polarview
( float $dist
, float $azimuth
, float $incidence
, float $twist
)
The swf_polarview() function defines the viewer's position in polar coordinates.
参数
- dist
-
The distance between the viewpoint to the world space origin.
- azimuth
-
Defines the azimuthal angle in the x,y coordinate plane, measured in distance from the y axis.
- incidence
-
Defines the angle of incidence in the y,z plane, measured in distance from the z axis. The incidence angle is defined as the angle of the viewport relative to the z axis.
- twist
-
Specifies the amount that the viewpoint is to be rotated about the line of sight using the right hand rule.
返回值
无返回值。
