Module "generic/featurecollection"

Index

Type aliases

Variables

Functions

Type aliases

FromFeatureFn

FromFeatureFn: (feature: Feature, header: HeaderMeta) => IFeature

Type declaration

- (feature: Feature, header: HeaderMeta): IFeature
- Parameters
  - feature: Feature
  - header: HeaderMeta
  Returns IFeature

ReadFn

ReadFn: (size: number) => Promise<ArrayBuffer>

Type declaration

- (size: number): Promise<ArrayBuffer>
- Parameters
  - size: number
  Returns Promise<ArrayBuffer>

SeekFn

SeekFn: (offset: number) => Promise<void>

Type declaration

- (offset: number): Promise<void>
- Parameters
  - offset: number
  Returns Promise<void>

Variables

Const SIZE_PREFIX_LEN

SIZE_PREFIX_LEN: 4 = 4

Const magicbytes

magicbytes: Uint8Array = new Uint8Array([0x66, 0x67, 0x62, 0x03, 0x66, 0x67, 0x62, 0x00])

Functions

buildColumn

buildColumn(builder: Builder, column: ColumnMeta): number

- Defined in generic/featurecollection.ts:192
Parameters
- builder: Builder
- column: ColumnMeta
Returns number

buildHeader

buildHeader(header: HeaderMeta): Uint8Array

- Defined in generic/featurecollection.ts:200
Parameters
- header: HeaderMeta
Returns Uint8Array

deserialize

deserialize(bytes: Uint8Array, fromFeature: FromFeatureFn, headerMetaFn?: HeaderMetaFn): IFeature[]

- Defined in generic/featurecollection.ts:69
Parameters
- bytes: Uint8Array
- fromFeature: FromFeatureFn
- Optional headerMetaFn: HeaderMetaFn
Returns IFeature[]

deserializeFiltered

deserializeFiltered(url: string, rect: Rect, fromFeature: FromFeatureFn, headerMetaFn?: HeaderMetaFn): AsyncGenerator<IFeature>

- Defined in generic/featurecollection.ts:107
Parameters
- url: string
- rect: Rect
- fromFeature: FromFeatureFn
- Optional headerMetaFn: HeaderMetaFn
Returns AsyncGenerator<IFeature>

deserializeInternal

deserializeInternal(fromFeature: FromFeatureFn, read: ReadFn, seek?: SeekFn, rect?: Rect, headerMetaFn?: HeaderMetaFn): AsyncGenerator<IFeature>

- Defined in generic/featurecollection.ts:125
Parameters
- fromFeature: FromFeatureFn
- read: ReadFn
- Optional seek: SeekFn
- Optional rect: Rect
- Optional headerMetaFn: HeaderMetaFn
Returns AsyncGenerator<IFeature>

deserializeStream

deserializeStream(stream: ReadableStream, fromFeature: FromFeatureFn, headerMetaFn?: HeaderMetaFn): AsyncGenerator<IFeature>

- Defined in generic/featurecollection.ts:99
Parameters
- stream: ReadableStream
- fromFeature: FromFeatureFn
- Optional headerMetaFn: HeaderMetaFn
Returns AsyncGenerator<IFeature>

introspectHeaderMeta

introspectHeaderMeta(features: IFeature[]): HeaderMeta

- Defined in generic/featurecollection.ts:238
Parameters
- features: IFeature[]
Returns HeaderMeta

parseHeader

parseHeader(bb: ByteBuffer): HeaderMeta

- Defined in generic/featurecollection.ts:49
Parameters
- bb: ByteBuffer
Returns HeaderMeta

readFeature

readFeature(read: ReadFn, headerMeta: HeaderMeta, fromFeature: FromFeatureFn): Promise<IFeature | undefined>

- Defined in generic/featurecollection.ts:177
Parameters
- read: ReadFn
- headerMeta: HeaderMeta
- fromFeature: FromFeatureFn
Returns Promise<IFeature | undefined>

serialize

serialize(features: IFeature[]): Uint8Array

- Defined in generic/featurecollection.ts:24
Parameters
- features: IFeature[]
Returns Uint8Array

valueToType

valueToType(value: boolean | number | string): ColumnType

- Defined in generic/featurecollection.ts:222
Parameters
- value: boolean | number | string
Returns ColumnType

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