lsst.afw.geom¶

Using lsst.afw.geom¶

lsst.afw.geom is developed at https://github.com/lsst/afw. You can find Jira issues for this module under the afw component.

`getIntermediateWorldCoordsToSky`(wcs, simplify)
`getPixelToIntermediateWorldCoords`(wcs, simplify)
`linearizeTransform`(original, point)
`makeCdMatrix`(scale, orientation, flipX)
`makeFlippedWcs`(wcs, flipLR, flipTB, center)
`makeIdentityTransform`()
`makeModifiedWcs`(pixelTransform, wcs, …)
`makeRadialTransform`(args, *kwargs)	Overloaded function.
`makeSkyWcs`(args, *kwargs)	Overloaded function.
`makeTanSipWcs`(args, *kwargs)	Overloaded function.
`makeTransform`(affine)
`makeWcsPairTransform`(src, dst)
`transformFromString`(data)	Read a Transform from a string that was saved using `Transform.writeString`
`wcsAlmostEqualOverBBox`(wcs0, wcs1, bbox[, …])	Test if two `WCS` are almost equal over a grid of pixel positions.

`AffineTransformConfig`	A Config representing an affine `Transform`.
`Ellipse`
`GenericEndpoint`
`IdentityTransformConfig`	A Config representing a `Transform` that does nothing.
`MultiTransformConfig`	A Config representing a chain of consecutive `Transforms`.
`OneTransformConfig`	A Config representing a single `Transform` in a compound `Transform`.
`Point2Endpoint`
`Polygon`
`Quadrupole`
`RadialTransformConfig`	A Config representing a radially symmetric `Transform`.
`SipApproximation`
`SkyWcs`
`Span`
`SpanIterator`
`SpanSet`
`SpherePointEndpoint`
`Stencil`
`TransformConfig`	Config that identifies `Transforms` by keyword.
`TransformGenericToGeneric`
`TransformGenericToPoint2`
`TransformGenericToSpherePoint`
`TransformPoint2ToGeneric`
`TransformPoint2ToPoint2`
`TransformPoint2ToSpherePoint`
`TransformSpherePointToGeneric`
`TransformSpherePointToPoint2`
`TransformSpherePointToSpherePoint`

`makeSipIwcToPixel`(metadata)	Make an IWC to pixel transform with SIP distortion from FITS-WCS metadata
`makeSipPixelToIwc`(metadata)	Make a pixel to IWC transform with SIP distortion from FITS-WCS metadata

BoxGrid(box, numColRow)

Divide a box into nx by ny sub-boxes that tile the region