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ASDF transform examples
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/add-1.2.0 | |
forward: | |
- !transform/shift-1.2.0 {offset: 1.0} | |
- !transform/scale-1.2.0 {factor: 2.0} | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/bonne_equal_area-1.2.0 {direction: pix2sky, theta1: 45.0} | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/compose-1.2.0 | |
forward: | |
- !transform/shift-1.2.0 {offset: 1.0} | |
- !transform/scale-1.2.0 {factor: 2.0} | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/compose-1.2.0 | |
forward: | |
- !transform/shift-1.2.0 | |
inverse: !transform/linear1d-1.0.0 {intercept: 2.0, slope: 1.0} | |
offset: 1.0 | |
- !transform/scale-1.2.0 {factor: 2.0} | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/compose-1.2.0 | |
forward: | |
- !transform/shift-1.2.0 | |
inverse: !transform/linear1d-1.0.0 {intercept: 2.0, slope: 1.0} | |
offset: 1.0 | |
- !transform/scale-1.2.0 {factor: 2.0} | |
inverse: !transform/ortho_polynomial-1.0.0 | |
coefficients: !core/ndarray-1.0.0 | |
data: | |
- [1.0, 1.8, 2.6] | |
- [1.4, 2.2, 3.0] | |
datatype: float64 | |
shape: [2, 3] | |
domain: | |
- [1, 5] | |
- [3, 6] | |
polynomial_type: chebyshev | |
window: | |
- [-1, 1] | |
- [-1, 1] | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/concatenate-1.2.0 | |
forward: | |
- !transform/scale-1.2.0 {factor: 2.0} | |
- !transform/shift-1.2.0 {offset: 1.0} | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/concatenate-1.2.0 | |
forward: | |
- !transform/concatenate-1.2.0 | |
forward: | |
- !transform/scale-1.2.0 {factor: 2.0} | |
- !transform/shift-1.2.0 {offset: 1.0} | |
- !transform/ortho_polynomial-1.0.0 | |
coefficients: !core/ndarray-1.0.0 | |
data: | |
- [1.0, 1.8, 2.6] | |
- [1.4, 2.2, 3.0] | |
datatype: float64 | |
shape: [2, 3] | |
domain: | |
- [1, 5] | |
- [3, 6] | |
polynomial_type: chebyshev | |
window: | |
- [-1, 1] | |
- [-1, 1] | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/concatenate-1.2.0 | |
forward: | |
- !transform/scale-1.2.0 {factor: 2.0} | |
- !transform/shift-1.2.0 {offset: 1.0} | |
inverse: !transform/ortho_polynomial-1.0.0 | |
coefficients: !core/ndarray-1.0.0 | |
data: | |
- [1.0, 1.8, 2.6] | |
- [1.4, 2.2, 3.0] | |
datatype: float64 | |
shape: [2, 3] | |
domain: | |
- [1, 5] | |
- [3, 6] | |
polynomial_type: chebyshev | |
window: | |
- [-1, 1] | |
- [-1, 1] | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/remap_axes-1.2.0 | |
mapping: [2, 1] | |
n_inputs: 4 | |
... |
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>>> from astropy.io import fits | |
>>> from asdf import fits_embed | |
>>> hdul = fits.open("example_imaging.fits") | |
>>> hdul.info() | |
Filename: example_imaging.fits | |
No. Name Ver Type Cards Dimensions Format | |
0 PRIMARY 1 PrimaryHDU 775 () | |
1 SCI 1 ImageHDU 71 (600, 550) float32 | |
>>> tree = {"sci": hdul[1].data, | |
... "wcs": wcsobj} | |
>>> fa = fits.embed.AsdfInFits(hdul, tree) | |
>>> fa.write_to("imaging_with_wcs_in_asdf.fits") | |
>>> fits.info("imaging_with_wcs_in_asdf.fits") | |
Filename: example_with_wcs.asdf | |
No. Name Ver Type Cards Dimensions Format | |
0 PRIMARY 1 PrimaryHDU 775 () | |
1 SCI 1 ImageHDU 71 (600, 550) float32 | |
2 ASDF 1 BinTableHDU 11 1R x 1C [5086B] |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/identity-1.2.0 {n_dims: 3} | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: gwcs.extension.GWCSExtension | |
software: !core/software-1.0.0 {name: gwcs, version: 0.13.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
wcs: !<tag:stsci.edu:gwcs/wcs-1.0.0> | |
name: '' | |
steps: | |
- !<tag:stsci.edu:gwcs/step-1.0.0> | |
frame: !<tag:stsci.edu:gwcs/frame2d-1.0.0> | |
axes_names: [x, y] | |
axes_order: [0, 1] | |
axis_physical_types: ['custom:x', 'custom:y'] | |
name: detector | |
unit: [!unit/unit-1.0.0 'pixel', !unit/unit-1.0.0 'pixel'] | |
transform: !transform/compose-1.2.0 | |
forward: | |
- !transform/compose-1.2.0 | |
forward: | |
- !transform/concatenate-1.2.0 | |
forward: | |
- !transform/shift-1.2.0 {name: crpix1, offset: -541.0} | |
- !transform/shift-1.2.0 {name: crpix2, offset: -506.5} | |
- !transform/affine-1.2.0 | |
matrix: !core/ndarray-1.0.0 | |
source: 0 | |
datatype: float64 | |
byteorder: little | |
shape: [2, 2] | |
name: pc_matrix | |
translation: !core/ndarray-1.0.0 | |
source: 1 | |
datatype: float64 | |
byteorder: little | |
shape: [2] | |
- !transform/compose-1.2.0 | |
forward: | |
- !transform/gnomonic-1.2.0 {direction: pix2sky, name: TAN} | |
- !transform/rotate3d-1.2.0 {name: crval, phi: 274.692661867318, psi: 180.0, | |
theta: -13.83266841423055} | |
- !<tag:stsci.edu:gwcs/step-1.0.0> | |
frame: !<tag:stsci.edu:gwcs/celestial_frame-1.0.0> | |
axes_names: [lon, lat] | |
axes_order: [0, 1] | |
axis_physical_types: [pos.eq.ra, pos.eq.dec] | |
name: icrs | |
reference_frame: !<tag:astropy.org:astropy/coordinates/frames/icrs-1.1.0> | |
frame_attributes: {} | |
unit: [!unit/unit-1.0.0 'deg', !unit/unit-1.0.0 'deg'] | |
... | |
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?.????H | |
"?????ԭMl????ԭMl??#?H | |
"??>?BLK0J?6?K??y?u.#H?#ASDF BLOCK INDEX | |
%YAML 1.1 | |
--- | |
- 2580 | |
- 2666 | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev1151+g9f3858ed4.d20200427} | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
polynomial: !transform/polynomial-1.2.0 | |
coefficients: !core/ndarray-1.0.0 | |
data: | |
- [1.0, 1.7142857142857142, 1.8571428571428572, 2.0, 2.142857142857143] | |
- [1.1428571428571428, 2.2857142857142856, 2.4285714285714284, 2.571428571428571, | |
0.0] | |
- [1.2857142857142856, 2.7142857142857144, 2.8571428571428568, 0.0, 0.0] | |
- [1.4285714285714286, 3.0, 0.0, 0.0, 0.0] | |
- [1.5714285714285714, 0.0, 0.0, 0.0, 0.0] | |
datatype: float64 | |
shape: [5, 5] | |
domain: | |
- [-1, 1] | |
- [-1, 1] | |
inverse: !transform/polynomial-1.2.0 | |
coefficients: !core/ndarray-1.0.0 | |
data: | |
- [1.0, 3.0] | |
- [2.0, 0.0] | |
datatype: float64 | |
shape: [2, 2] | |
domain: | |
- [-1, 1] | |
- [-1, 1] | |
name: p2 | |
window: | |
- [-1, 1] | |
- [-1, 1] | |
name: p1 | |
window: | |
- [-1, 1] | |
- [-1, 1] | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/rotate2d-1.2.0 | |
angle: !unit/quantity-1.1.0 {unit: !unit/unit-1.0.0 'arcsec', value: 23.0} | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
scale: !transform/scale-1.2.0 {factor: 2.0} | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/shift-1.2.0 {offset: 1.0} | |
... |
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#ASDF 1.0.0 | |
#ASDF_STANDARD 1.5.0 | |
%YAML 1.1 | |
%TAG ! tag:stsci.edu:asdf/ | |
--- !core/asdf-1.1.0 | |
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf', | |
name: asdf, version: 2.6.0} | |
history: | |
extensions: | |
- !core/extension_metadata-1.0.0 | |
extension_class: asdf.extension.BuiltinExtension | |
software: !core/software-1.0.0 {name: asdf, version: 2.6.0} | |
- !core/extension_metadata-1.0.0 | |
extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension | |
software: !core/software-1.0.0 {name: astropy, version: 4.1.dev982+gfd8e47bee.d20200421} | |
transform: !transform/subtract-1.2.0 | |
forward: | |
- !transform/shift-1.2.0 {offset: 1.0} | |
- !transform/scale-1.2.0 {factor: 2.0} | |
... |
These are automatically created in alphabetical order. I think it helps to look at them n this order:
shift.asdf
scale.asdf
rotation_with_units.asdf
identity.asdf
drop_and_permite_axes.asdf
bon_projection.asdf
compose.asdf
compose_shift_with_custom_inverse.asdf
compose_with_custom_inverse.asdf
concatenate.asdf
concatenate_with_custom_inverse.asdf
concatenate_three_transforms.asdf
add_transforms.asdf
subtract_transforms.asdf
imaging_wcs.asdf
Example_writing_to_fits.py
Added polynomial_with_inverse
example
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All ASDF files were created in python by serializing the Python objects with code that looks like this:
All files have a header which helps with versioning and validation and looks like