Class Projection

Index

Constructors

Methods

addTransform getCode getUnits nullTransform transform

Constructors

constructor

new Projection(projCode: string, options?: any): Projection
This class offers several methods for interacting with a wrapped pro4js projection object.
Parameters
- projCode: string
- Optionaloptions: any
Returns Projection

Methods

addTransform

addTransform(from: string, to: string, method: () => void): void
Set a custom transform method between two projections. Use this method in cases where the proj4js lib is not available or where custom projections need to be handled.
Parameters
- from: string
- to: string
- method: () => void
Returns void

getCode

getCode(): string
Get the string SRS code.

Returns string

getUnits

getUnits(): string
Get the units string for the projection -- returns null if proj4js is not available.

Returns string

nullTransform

nullTransform(point: {}): Function
A null transformation useful for defining projection aliases when proj4js is not available:
Parameters
- point: {}
Returns Function

transform

transform(point: Point, source: Projection, dest: Projection): {}
Transform a point coordinate from one projection to another. Note that the input point is transformed in place.
Parameters
- point: Point
- source: Projection
- dest: Projection
Returns {}
transform(point: {}, source: Projection, dest: Projection): {}
Transform a point coordinate from one projection to another. Note that the input point is transformed in place.
Parameters
- point: {}
- source: Projection
- dest: Projection
Returns {}