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projection.IDENTITY ​

projection.IDENTITY is a projection based on a Cartesian coordinate system, mixing in projection.Common and measurer.Identity. It maps x, y directly to planar coordinates without any projection transformation, useful for flat-surface maps such as indoor maps and game maps. It is an object mixin with no standalone constructor.

js
import { projection } from "maptalks";

const p = projection.IDENTITY.project([100, 200]);
console.log(p.x, p.y); // 100, 200

Properties / Static Methods ​

  • code: string — The projection code, 'IDENTITY'.

Methods ​

  • project(p, out?): Coordinate — Identity projection, copying x/y/z.
  • unproject(p, out?): Coordinate — Identity unprojection, copying x/y/z.
  • Additionally inherits projection / batch / sphere methods from projection.Common.