Cesium JS API
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HeadingPitchRoll

HeadingPitchRoll 是一个表示方向、俯仰和横滚角度的类,它用于在三维场景中定义物体的朝向。

构造函数

HeadingPitchRoll(heading, pitch, roll)

  • heading : {Number}, 从正北方向开始的方向(单位:弧度)
  • pitch : {Number}, 水平面上向下的角度(单位:弧度)
  • roll : {Number}, 沿着朝向轴旋转的角度(单位:弧度)

属性

heading : {Number}

从正北方向开始的方向(单位:弧度)

pitch : {Number}

水平面上向下的角度(单位:弧度)

roll : {Number}

沿着朝向轴旋转的角度(单位:弧度)

方法

clone(headingPitchRoll) : HeadingPitchRoll

返回当前实例的拷贝

  • headingPitchRoll : {HeadingPitchRoll} 可选,用于存储结果的 HeadingPitchRoll 实例。如果提供该参数,则结果将存储在该实例中。

equals(other) : Boolean

比较两个 HeadingPitchRoll 实例是否相等。如果两个实例的 headingpitchroll 属性都相等,则返回 true

  • other : {HeadingPitchRoll}

要比较的另一个 HeadingPitchRoll 实例。

toString() : String

返回一个字符串,表示该 HeadingPitchRoll 实例的属性值。

示例

var hpRoll = new Cesium.HeadingPitchRoll(Math.PI, Cesium.Math.toRadians(-45), 0);
var hpRollCopy = hpRoll.clone();
console.log(hpRoll.equals(hpRollCopy)); //输出 true
console.log(hpRoll.toString()); //输出 "HeadingPitchRoll(3.141592653589793, -0.7853981633974483, 0)"