BufferGeometry
Object3D
Raycaster
Camera
CubeCamera
PerspectiveCamera
OrthographicCamera
StereoCamera
Clock
Curve
CurvePath
Path
Shape
ShapePath
ArrowHelper
AxesHelper
BoxHelper
Box3Helper
CameraHelper
DirectionalLightHelper
GridHelper
PolarGridHelper
HemisphereLightHelper
PlaneHelper
PointLightHelper
SkeletonHelper
SpotLightHelper
Light
PointLight
RectAreaLight
SpotLight
DirectionalLight
HemisphereLight
LightShadow
PointLightShadow
AnimationLoader
AudioLoader
BufferGeometryLoader
CompressedTextureLoader
CubeTextureLoader
DataTextureLoader
FileLoader
ImageBitmapLoader
ImageLoader
Loader
LoaderUtils
MaterialLoader
ObjectLoader
TextureLoader
LoadingManager
Material
Box2
Box3
Color
Cylindrical
Euler
Frustum
Interpolant
Line3
MathUtils
Matrix3
Matrix4
Plane
Quaternion
AnimationAction
AnimationClip
AnimationMixer
AnimationObjectGroup
AnimationUtils
keyframeTrack
PropertyBinding
PropertyMixer
BooleanKeyframeTrack
QuaternionKeyframeTrack
StringKeyframeTrack
Audio
AudioAnalyser
AudioContext
AudioListener
PositionalAudio

Box3.union()

在three.js中,Box3.union()方法用于计算两个盒子对象的并集,返回一个新的盒子对象。该方法的语法如下所示:

union(box: Box3): Box3

其中,参数box表示需要计算并集的另一个盒子对象。

该方法会将两个盒子对象合并成一个新的盒子对象,该新盒子对象的范围将包括之前两个盒子对象的范围。该方法对应于数学上的并集运算。

示例

// 创建两个盒子对象
var box1 = new THREE.Box3(new THREE.Vector3(-1, -1, -1), new THREE.Vector3(1, 1, 1));
var box2 = new THREE.Box3(new THREE.Vector3(0, 0, 0), new THREE.Vector3(2, 2, 2));

// 计算两个盒子对象的并集
var resultBox = box1.union(box2);

// 打印结果
console.log("盒子1:", box1);
console.log("盒子2:", box2);
console.log("并集盒子:", resultBox);

// 输出结果:
// 盒子1: THREE.Box3 { min: THREE.Vector3 { x: -1, y: -1, z: -1 }, max: THREE.Vector3 { x: 1, y: 1, z: 1 } }
// 盒子2: THREE.Box3 { min: THREE.Vector3 { x: 0, y: 0, z: 0 }, max: THREE.Vector3 { x: 2, y: 2, z: 2 } }
// 并集盒子: THREE.Box3 { min: THREE.Vector3 { x: -1, y: -1, z: -1 }, max: THREE.Vector3 { x: 2, y: 2, z: 2 } }

注意事项

  • Box3.union()方法是一个静态方法,不需要实例化就可以直接调用。
  • 该方法不会修改原始的盒子对象,而是返回一个新的盒子对象。