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球坐标(Spherical)

一个点的spherical coordinates(球坐标)。

构造函数

Spherical( radius : Float, phi : Float, theta : Float )

radius - 半径值,或者说从该点到原点的 Euclidean distance(欧几里得距离,即直线距离)。默认值为1.0
phi - polar angle from the y (up) axis. Default is 0.
theta - equator angle around the y (up) axis. Default is 0.

The poles (phi) are at the positive and negative y axis. The equator (theta) starts at positive z.

属性

# .radius : Float

# .phi : Float

# .theta : Float

方法

# .clone () : Spherical

返回一个新的球坐标,新的球坐标与该球坐标具有相同的 radius、phi和theta。

# .copy ( s : Spherical ) : Spherical

复制所传入的球坐标的radius、 phi 和theta属性到该球坐标中。

# .makeSafe () : Spherical

将极角 phi 的值限制在0.000001 和 pi - 0.000001 之间。

# .set ( radius : Float, phi : Float, theta : Float ) : Spherical

设置球坐标中radius、phi 和 theta 属性的值。

# .setFromVector3 ( vec3 : Vector3 ) : Spherical

从Vector3中设置球坐标的radius、phi和theta值。

# .setFromCartesianCoords ( x : Float, y : Float, z : Float ) : Spherical

从笛卡尔坐标系中设置球坐标的radius、phi和theta值。

源代码

src/math/Spherical.js