Class Terrain3DGeometry

地形几何体

Hierarchy

Geometry
- Terrain3DGeometry

Constructors

constructor

new Terrain3DGeometry(raw?: gPartial<Terrain3DGeometry>): Terrain3DGeometry
创建高度地形拥有segmentsW*segmentsH个顶点
Parameters
- Optional raw: gPartial<Terrain3DGeometry>
Returns Terrain3DGeometry
Overrides Geometry.constructor
- Defined in src/3d/terrain/Terrain3DGeometry.ts:86

Properties

`Private` _heightImageData

_heightImageData: ImageData

assetId

assetId: string

资源编号

assetType

assetType: AssetType = AssetType.geometry

attributes

attributes: {
[key: string]: AttributeBuffer;
} = {}

属性数据列表

Type declaration

[key: string]: AttributeBuffer

depth

depth: number = 10

地形深度

`Readonly` emitter

emitter: EventEmitter<GeometryEventMap> = ...

事件发射器。

height

height: number = 1

地形高度

heightMap

heightMap: Texture2D<Texture2DEventMap> = Texture2D.default

高度图路径

indexBuffer

indexBuffer: ElementBuffer

顶点索引缓冲

maxElevation

maxElevation: number = 255

最大地形高度

minElevation

minElevation: number = 0

最小地形高度

name

name: string

scaleU

scaleU: number = 1

纹理U缩放，默认为1。

scaleV

scaleV: number = 1

纹理V缩放，默认为1。

segmentsH

segmentsH: number = 30

纵向网格段数

segmentsW

segmentsW: number = 30

横向网格段数

width

width: number = 10

地形宽度

Accessors

bounding

get bounding(): Box3
Returns Box3
Inherited from Geometry.bounding
- Defined in src/3d/geometrys/Geometry.ts:250

geometryInfo

get geometryInfo(): string
几何体信息

Returns string
Inherited from Geometry.geometryInfo
- Defined in src/3d/geometrys/Geometry.ts:79

numTriangles

get numTriangles(): number
三角形数量

Returns number
Inherited from Geometry.numTriangles
- Defined in src/3d/geometrys/Geometry.ts:136

numVertex

get numVertex(): number
顶点数量

Returns number
Inherited from Geometry.numVertex
- Defined in src/3d/geometrys/Geometry.ts:124

Methods

`Private` _onHeightMapChanged

_onHeightMapChanged(): void
Returns void
- Defined in src/3d/terrain/Terrain3DGeometry.ts:102

addGeometry

addGeometry(geometry: Geometry, transform?: Matrix4x4): void
添加几何体
Parameters
- geometry: Geometry
  
  被添加的几何体
- Optional transform: Matrix4x4
  
  变换矩阵，把克隆被添加几何体的数据变换后再添加到该几何体中
Returns void
Inherited from Geometry.addGeometry
- Defined in src/3d/geometrys/Geometry.ts:148

applyTransformation

applyTransformation(transform: Matrix4x4): void
应用变换矩阵
Parameters
- transform: Matrix4x4
  
  变换矩阵
Returns void
Inherited from Geometry.applyTransformation
- Defined in src/3d/geometrys/Geometry.ts:212

beforeRender

beforeRender(renderAtomic: RenderAtomic): void
Parameters
- renderAtomic: RenderAtomic
Returns void
Inherited from Geometry.beforeRender
- Defined in src/3d/geometrys/Geometry.ts:348

`Protected` buildGeometry

buildGeometry(): void
创建顶点坐标

Returns void
Overrides Geometry.buildGeometry
- Defined in src/3d/terrain/Terrain3DGeometry.ts:126

`Private` buildUVs

buildUVs(): number[]
创建uv坐标

Returns number[]
- Defined in src/3d/terrain/Terrain3DGeometry.ts:199

clear

clear(): void
清理数据

Returns void
Inherited from Geometry.clear
- Defined in src/3d/geometrys/Geometry.ts:379

clone

clone(): Geometry
克隆一个几何体

Returns Geometry
Inherited from Geometry.clone
- Defined in src/3d/geometrys/Geometry.ts:314

cloneFrom

cloneFrom(geometry: Geometry): void
从一个几何体中克隆数据
Parameters
- geometry: Geometry
Returns void
Inherited from Geometry.cloneFrom
- Defined in src/3d/geometrys/Geometry.ts:326

getFaces

getFaces(result?: number[][]): number[][]
Parameters
- result: number[][] = []
Returns number[][]
Inherited from Geometry.getFaces
- Defined in src/3d/geometrys/Geometry.ts:300

getHeightAt

getHeightAt(x: number, z: number): number
获取位置在（x，z）处的高度y值

Returns
高度
Parameters
- x: number
  
  x坐标
- z: number
  
  z坐标
Returns number
- Defined in src/3d/terrain/Terrain3DGeometry.ts:224

`Private` getPixel

getPixel(imageData: ImageData, u: number, v: number): number
获取像素值
Parameters
- imageData: ImageData
- u: number
- v: number
Returns number
- Defined in src/3d/terrain/Terrain3DGeometry.ts:252

getVertices

getVertices(result?: Vector3[]): Vector3[]
获取顶点列表
Parameters
- result: Vector3[] = []
Returns Vector3[]
Inherited from Geometry.getVertices
- Defined in src/3d/geometrys/Geometry.ts:289

invalidateBounds

invalidateBounds(): void
包围盒失效

Returns void
Inherited from Geometry.invalidateBounds
- Defined in src/3d/geometrys/Geometry.ts:244

invalidateGeometry

invalidateGeometry(): void
标记需要更新几何体，在更改几何体数据后需要调用该函数。

Returns void
Inherited from Geometry.invalidateGeometry
- Defined in src/3d/geometrys/Geometry.ts:95

raycast

raycast(ray: Ray3, shortestCollisionDistance?: number, cullFace?: CullFace): {
    index: number;
    localNormal: Vector3;
    localPosition: Vector3;
    rayEntryDistance: number;
    uv: Vector2;
}
射线投影几何体
Parameters
- ray: Ray3
  
  射线
- shortestCollisionDistance: number = Number.MAX_VALUE
  
  当前最短碰撞距离
- cullFace: CullFace = 'NONE'
  
  裁剪面枚举
Returns {
    index: number;
    localNormal: Vector3;
    localPosition: Vector3;
    rayEntryDistance: number;
    uv: Vector2;
}
- index: number
- localNormal: Vector3
- localPosition: Vector3
- rayEntryDistance: number
- uv: Vector2
Inherited from Geometry.raycast
- Defined in src/3d/geometrys/Geometry.ts:273

updateGrometry

updateGrometry(): void
更新几何体

Returns void
Inherited from Geometry.updateGrometry
- Defined in src/3d/geometrys/Geometry.ts:105

`Static` create

create<K>(geometry: K, params?: gPartial<GeometryMap[K]>): GeometryMap[K]
构造几何体。

Returns
几何体实例。
Type Parameters
- K extends keyof GeometryMap
Parameters
- geometry: K
  
  几何体名称。
- Optional params: gPartial<GeometryMap[K]>
  
  几何体参数。
Returns GeometryMap[K]
Inherited from Geometry.create
- Defined in src/3d/geometrys/Geometry.ts:396

`Static` getDefault

getDefault<K>(name: K): DefaultGeometryMap[K]
获取默认几何体
Type Parameters
- K extends keyof DefaultGeometryMap
Parameters
- name: K
  
  默认几何体名称
Returns DefaultGeometryMap[K]
Inherited from Geometry.getDefault
- Defined in src/3d/geometrys/Geometry.ts:422

`Static` setDefault

setDefault<K>(name: K, geometry: DefaultGeometryMap[K], param?: gPartial<DefaultGeometryMap[K]>): void
设置默认几何体
Type Parameters
- K extends keyof DefaultGeometryMap
Parameters
- name: K
  
  默认几何体名称
- geometry: DefaultGeometryMap[K]
  
  默认几何体
- Optional param: gPartial<DefaultGeometryMap[K]>
Returns void
Inherited from Geometry.setDefault
- Defined in src/3d/geometrys/Geometry.ts:409

Class Terrain3DGeometry

Hierarchy

Index

Constructors

Properties

Accessors

Methods

Constructors

constructor

Parameters

Optional raw: gPartial<Terrain3DGeometry>

Returns Terrain3DGeometry

Properties

Private _heightImageData

assetId

assetType

attributes

Type declaration

[key: string]: AttributeBuffer

depth

Readonly emitter

height

heightMap

indexBuffer

maxElevation

minElevation

name

scaleU

scaleV

segmentsH

segmentsW

width

Accessors

bounding

Returns Box3

geometryInfo

Returns string

numTriangles

Returns number

numVertex

Returns number

Methods

Private _onHeightMapChanged

Returns void

addGeometry

Parameters

geometry: Geometry

Optional transform: Matrix4x4

Returns void

applyTransformation

Parameters

transform: Matrix4x4

Returns void

beforeRender

Parameters

renderAtomic: RenderAtomic

Returns void

Protected buildGeometry

Returns void

Private buildUVs

Returns number[]

clear

Returns void

clone

Returns Geometry

cloneFrom

Parameters

geometry: Geometry

Returns void

getFaces

Parameters

result: number[][] = []

Returns number[][]

getHeightAt

Returns

Parameters

x: number

z: number

Returns number

Private getPixel

`Optional` raw: gPartial<Terrain3DGeometry>

`Private` _heightImageData

`Readonly` emitter

`Private` _onHeightMapChanged

`Optional` transform: Matrix4x4

`Protected` buildGeometry

`Private` buildUVs

`Private` getPixel

Returns {
index: number;
localNormal: Vector3;
localPosition: Vector3;
rayEntryDistance: number;
uv: Vector2;
}

`Static` create

`Optional` params: gPartial<GeometryMap[K]>

`Static` getDefault

`Static` setDefault

`Optional` param: gPartial<DefaultGeometryMap[K]>