PROJ Operator

The PROJ operator exposes PROJ transformations directly within Transformo. It allows using any transformation available in the PROJ library.

Type

type: proj_operator

Options

PROJ String

The proj_string parameter accepts any valid PROJ pipeline string. For more information about PROJ strings, see the PROJ documentation.

Examples Transformations

Helmert Transformation

operators:
- name: Helmert via PROJ
  type: proj_operator
  proj_string: +proj=helmert +x=100 +y=50 +z=25

Coordinate Conversion

operators:
- name: UTM
  type: proj_operator
  proj_string: +proj=utm +zone=32

Pipeline Transformations

Multiple transformations can be chained using a pipeline:

operators:
- name: Complex transformation
  type: proj_operator
  proj_string: +proj=pipeline +step +proj=helmert +x=1000 +step +proj=utm +zone=32