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Module "proj/bd09"

BD09 Coordinate Reference System. This crs is applied to web map and apps of baidu co. It is secondly encrypted crs based on GCJ02 crs.

author:

wkgreat

date:

2020/08/08

Index

Classes

Variables

Functions

Variables

Const CODE

CODE: "BD09" = "BD09"

Const EXTENT

EXTENT: Extent = [73.62, 18.11, 134.77, 53.56]

extent of gcj02

const

Const METERS_PER_UNIT

METERS_PER_UNIT: number = (Math.PI * RADIUS) / 180

coefficient between degree and radian

const

Const PROJECTIONS

PROJECTIONS: BD09Projection[] = [new BD09Projection(CODE),new BD09Projection('BD:09'),new BD09Projection('baidu')]

all codes of bd09 reference system

const

Const RADIUS

RADIUS: number = 6378137

radius of WGS84 ellipsoid

const

Functions

Const adBD09

  • adBD09(): void

bd09toGcj02

  • bd09toGcj02(coord: number[]): number[]

  • transform bd09 coordinate to gcj02

    Parameters

    • coord: number[]

      coordinate of bd09

    Returns number[]

    coordinate of gcj02

fromGcj02

  • fromGcj02(input: number[], opt_output: number[], opt_dimension: number): number[]

  • transform coordinate from GCJ02 to BD09

    function

    Parameters

    • input: number[]

      input coordinate

    • opt_output: number[]

      output coordinate

    • opt_dimension: number

      dimension of coordinate

    Returns number[]

    tranformed coordinate

gcj02toBd09

  • gcj02toBd09(coord: number[]): number[]

  • transform gcj02 coordinate to bd09

    Parameters

    • coord: number[]

      coordinate of gcf02

    Returns number[]

    coordinate of bd09

toGCJ02

  • toGCJ02(input: number[], opt_output: number[], opt_dimension: number): number[]

  • transform coordinate from BD09 to gcj02

    function

    Parameters

    • input: number[]

      input coordinate

    • opt_output: number[]

      output coordinate

    • opt_dimension: number

      dimension of coordinate

    Returns number[]

    tranformed coordinate

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