M3D / M3D / Render / IndexBuffer

Class: IndexBuffer

M3D.Render.IndexBuffer

Memberof

M3D.Render

Description

索引缓冲区

Hierarchy

• GPUObject

  ↳ IndexBuffer

Table of contents

Constructors

• constructor

Properties

• id
• count

Methods

• bind
• create
• deleteBuffer
• getBufferType
• getDynamic
• getEdgeData
• getEdgeLength
• getEdgeOffset
• getEvents
• getFaceData
• getFaceLength
• getFaceOffset
• getId
• getOffset
• getRenderContext
• getSize
• hasValue
• registerEvent
• removeEvent
• setDataRange
• setDynamic
• setEdgeData
• setEdgeLength
• setEdgeOffset
• setFaceData
• setFaceLength
• setFaceOffset
• setId
• setOffset
• setRenderContext
• setSize
• unbind
• writeBuffer

Constructors

constructor

• new IndexBuffer(renderContext): IndexBuffer

Parameters

Name	Type
renderContext	RenderContext

Returns

IndexBuffer

Description

构造函数

Overrides

GPUObject.constructor

Properties

id

• id: number

Inherited from

GPUObject.id

---

count

▪ Static count: number

Inherited from

GPUObject.count

Methods

bind

▸ bind(): void

Returns

void

Description

绑定buffer

---

create

▸ create(bufferSize): boolean

Parameters

Name	Type
bufferSize	number

Returns

boolean

Description

在GPU端申请空间：设置是否创建IBO对象，如果不创建，在绑定时默认绑定到0，不影响使用。

▸ create(buffer): boolean

Parameters

Name	Type
buffer	Uint32Array

Returns

boolean

Description

在GPU端申请空间

---

deleteBuffer

▸ deleteBuffer(): void

Returns

void

Description

删除Buffer

---

getBufferType

▸ getBufferType(): number

Returns

number

Description

获取buffer类型

---

getDynamic

▸ getDynamic(): boolean

Returns

boolean

Description

获取GPU申请空间是否为动态

---

getEdgeData

▸ getEdgeData(): any

Returns

any

Description

获取线索引的数据

---

getEdgeLength

▸ getEdgeLength(): number

Returns

number

Description

获取线索引的长度

---

getEdgeOffset

▸ getEdgeOffset(): number

Returns

number

Description

获取线索引的偏移量

---

getEvents

▸ getEvents(): M3DEvent[]

Returns

M3DEvent[]

Description

获得事件列表

Inherited from

GPUObject.getEvents

---

getFaceData

▸ getFaceData(): any

Returns

any

Description

获取面索引的数据

---

getFaceLength

▸ getFaceLength(): number

Returns

number

Description

获取面索引的长度

---

getFaceOffset

▸ getFaceOffset(): number

Returns

number

Description

获取面索引的偏移量

---

getId

▸ getId(): number

Returns

number

Description

获取id

Inherited from

GPUObject.getId

---

getOffset

▸ getOffset(): number

Returns

number

Description

获取数据相对于起点的偏移量

---

getRenderContext

▸ getRenderContext(): RenderContext

Returns

RenderContext

渲染上下文

Description

获取渲染上下文

Inherited from

GPUObject.getRenderContext

---

getSize

▸ getSize(): number

Returns

number

Description

获取buffer大小

---

hasValue

▸ hasValue(): boolean

Returns

boolean

Description

判断是否有值

---

registerEvent

▸ registerEvent(event): void

Parameters

Name	Type	Description
event	M3DEvent	M3D事件

Returns

void

Description

注册事件

Inherited from

GPUObject.registerEvent

---

removeEvent

▸ removeEvent(): void

Returns

void

Description

删除事件

Inherited from

GPUObject.removeEvent

---

setDataRange

▸ setDataRange(data, start): boolean

Parameters

Name	Type
data	number[] | Uint32Array
start	number

Returns

boolean

Description

分段将数据拷贝到GPU端

---

setDynamic

▸ setDynamic(dynamic): void

Parameters

Name	Type
dynamic	boolean

Returns

void

Description

设置GPU申请空间是否为动态

---

setEdgeData

▸ setEdgeData(value): void

Parameters

Name	Type
value	any

Returns

void

Description

设置线索引的数据

---

setEdgeLength

▸ setEdgeLength(value): void

Parameters

Name	Type
value	number

Returns

void

Description

设置线索引的长度

---

setEdgeOffset

▸ setEdgeOffset(offset): void

Parameters

Name	Type
offset	number

Returns

void

Description

设置线索引相对于起点的偏移量

---

setFaceData

▸ setFaceData(value): void

Parameters

Name	Type
value	any

Returns

void

Description

设置面索引的数据

---

setFaceLength

▸ setFaceLength(value): void

Parameters

Name	Type
value	number

Returns

void

Description

设置面索引的长度

---

setFaceOffset

▸ setFaceOffset(offset): void

Parameters

Name	Type
offset	number

Returns

void

Description

设置面索引相对于起点的偏移量

---

setId

▸ setId(v): void

Parameters

Name	Type	Description
v	number	ShapeId

Returns

void

Description

设置id

Inherited from

GPUObject.setId

---

setOffset

▸ setOffset(offset): void

Parameters

Name	Type
offset	number

Returns

void

Description

设置数据相对于起点的偏移量

---

setRenderContext

▸ setRenderContext(v): void

Parameters

Name	Type	Description
v	RenderContext	渲染上下文

Returns

void

Description

设置GL

Inherited from

GPUObject.setRenderContext

---

setSize

▸ setSize(bufferSize, dynamic): void

Parameters

Name	Type
bufferSize	number
dynamic	boolean

Returns

void

Description

设置在GPU端申请Indexbuffer所占字节数

---

unbind

▸ unbind(): void

Returns

void

Description

解绑buffer

---

writeBuffer

▸ writeBuffer(): void

Returns

void

Description

数据写到缓冲区中