%YAML 1.1
---
id: asdf://asdf-format.org/astronomy/gwcs/manifests/gwcs-1.3.0
extension_uri: asdf://asdf-format.org/astronomy/gwcs/extensions/gwcs-1.3.0
title: gwcs extension 1.3.0
description: |-
  A set of tags for serializing STScI gwcs models.
asdf_standard_requirement:
  gte: 1.6.0
tags:
- tag_uri: tag:stsci.edu:gwcs/celestial_frame-1.1.0
  schema_uri: http://stsci.edu/schemas/gwcs/celestial_frame-1.1.0
  title: A celestial frame
  description: |-
    Represents a celestial frame
- tag_uri: tag:stsci.edu:gwcs/composite_frame-1.0.0
  schema_uri: http://stsci.edu/schemas/gwcs/composite_frame-1.0.0
  title: A set of frames
  description: |-
    Represents a set of frames
- tag_uri: "tag:stsci.edu:gwcs/direction_cosines-1.2.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/direction_cosines-1.2.0"
  title: >
    Convert coordinates between vector and direction cosine form.
  description: |
    This schema is for transforms which convert to and from direction cosines.
- tag_uri: "tag:stsci.edu:gwcs/frame2d-1.1.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/frame2d-1.1.0"
  title: >
    Represents a 2D frame.
  description: |
    Represents a 2D frame.
- tag_uri: "tag:stsci.edu:gwcs/frame-1.1.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/frame-1.1.0"
  title: |
    The base class of all coordinate frames.
  description: |
    These objects are designed to be nested in arbitrary ways to build up
    transformation pipelines out of a number of low-level pieces.
- tag_uri: "tag:stsci.edu:gwcs/grating_equation-1.2.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/grating_equation-1.2.0"
  title: >
    A grating equation model.
  description: |
    Supports two models:
     - Given incident angle and wavelength compute the refraction/difraction angle.
     - Given an incident angle and a refraction angle compute the wavelength.
- tag_uri: "tag:stsci.edu:gwcs/label_mapper-1.2.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/label_mapper-1.2.0"
  title: >
    Represents a mapping from a coordinate value to a label.
  description: |
    A label mapper instance maps inputs to a label.  It is used together
    with
    [regions_selector](ref:regions_selector-1.2.0). The
    [label_mapper](ref:label_mapper-1.2.0)
    returns the label corresponding to given inputs. The
    [regions_selector](ref:regions_selector-1.2.0)
    returns the transform corresponding to this label. This maps inputs
    (e.g. pixels on a detector) to transforms uniquely.
- tag_uri: "tag:stsci.edu:gwcs/regions_selector-1.2.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/regions_selector-1.2.0"
  title: >
    Represents a discontinuous transform.
  description: |
    Maps regions to transgorms and evaluates the transforms with the corresponding inputs.
- tag_uri: "tag:stsci.edu:gwcs/sellmeier_glass-1.2.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/sellmeier_glass-1.2.0"
  title: >
    Sellmeier equation for glass
  description: |
    Sellmeier equation for glass.

    $$ n(\\lambda)^2 = 1 + \\frac{(B1 * \\lambda^2 )}{(\\lambda^2 - C1)} +
       \\frac{(B2 * \\lambda^2 )}{(\\lambda^2 - C2)} +
       \\frac{(B3 * \\lambda^2 )}{(\\lambda^2 - C3)} $$
- tag_uri: "tag:stsci.edu:gwcs/sellmeier_zemax-1.2.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/sellmeier_zemax-1.2.0"
  title: Sellmeier equation for glass used by Zemax
  description: |
    Sellmeier equation for glass used by Zemax
- tag_uri: "tag:stsci.edu:gwcs/snell3d-1.2.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/snell3d-1.2.0"
  title: Snell Law in 3D space
  description: |
    Snell Law in 3D.
    Inputs are index of refraction and direction cosines.
    Outputs are direction cosines.
- tag_uri: "tag:stsci.edu:gwcs/spectral_frame-1.1.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/spectral_frame-1.1.0"
  title: >
    Represents a spectral frame.
  description: >
- tag_uri: "tag:stsci.edu:gwcs/spherical_cartesian-1.2.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/spherical_cartesian-1.2.0"
  title: >
    Convert coordinates between spherical and Cartesian coordinates.
  description: |
    This schema is for transforms which convert between spherical coordinates
    (on the unit sphere) and Cartesian coordinates.
- tag_uri: "tag:stsci.edu:gwcs/step-1.2.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/step-1.2.0"
  title: >
    Describes a single step of a WCS transform pipeline.
  description: >
- tag_uri: "tag:stsci.edu:gwcs/stokes_frame-1.0.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/stokes_frame-1.0.0"
  title: >
    Represents a stokes frame
  description: >
- tag_uri: "tag:stsci.edu:gwcs/temporal_frame-1.1.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/temporal_frame-1.1.0"
  title: >
    Represents a temporal frame.
  description: >
- tag_uri: "tag:stsci.edu:gwcs/wcs-1.3.0"
  schema_uri: "http://stsci.edu/schemas/gwcs/wcs-1.3.0"
  title: >
    A system for describing generalized world coordinate transformations.
  description: >
    ASDF WCS is a way of specifying transformations (usually from
    detector space to world coordinate space and back) by using the
    transformations in the `transform-schema` module.
...
