lsst.afw.geom¶
Using lsst.afw.geom¶
Contributing¶
lsst.afw.geom is developed at https://github.com/lsst/afw.
You can find Jira issues for this module under the afw component.
Python API reference¶
lsst.afw.geom Package¶
Functions¶
calculateSipWcsHeader(wcs, order, bbox, spacing) |
Generate a SIP WCS header approximating a given SkyWcs |
computePixelToDistortedPixel(…) |
Compute the transform pixelToDistortedPixel, which applies optical distortion specified by focalPlaneToFieldAngle. |
createTrivialWcsMetadata(wcsName, xy0) |
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deleteBasicWcsMetadata(metadata, wcsName) |
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getCdMatrixFromMetadata(metadata) |
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getImageXY0FromMetadata(metadata, wcsName, strip) |
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getIntermediateWorldCoordsToSky(wcs, simplify) |
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getPixelToIntermediateWorldCoords(wcs, simplify) |
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getSipMatrixFromMetadata(metadata, name) |
Extract a SIP matrix from FITS TAN-SIP WCS metadata. |
hasSipMatrix(metadata, name) |
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linearizeTransform(original, point) |
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makeCdMatrix(scale, orientation, flipX) |
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makeFlippedWcs(wcs, flipLR, flipTB, center) |
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makeHpxWcs(hips_order, pixel[, shift_order]) |
Make a SkyWcs object with HEALPix grid projection (HPX). |
makeIdentityTransform() |
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makeModifiedWcs(pixelTransform, wcs, …) |
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makeRadialTransform(*args, **kwargs) |
Overloaded function. |
makeSimpleWcsMetadata(crpix, crval, …) |
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makeSipMatrixMetadata(matrix, n]], name) |
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makeSkyWcs(*args, **kwargs) |
Overloaded function. |
makeTanSipMetadata(*args, **kwargs) |
Overloaded function. |
makeTanSipWcs(*args, **kwargs) |
Overloaded function. |
makeTransform(affine) |
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makeWcsPairTransform(src, dst) |
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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. |
Classes¶
AffineTransformConfig |
A Config representing an affine Transform. |
Ellipse |
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GenericEndpoint |
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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 |
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Polygon |
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Quadrupole |
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RadialTransformConfig |
A Config representing a radially symmetric Transform. |
SipApproximation |
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SkyWcs |
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Span |
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SpanIterator |
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SpanSet |
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SpherePointEndpoint |
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Stencil |
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TransformConfig |
Config that identifies Transforms by keyword. |
TransformGenericToGeneric |
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TransformGenericToPoint2 |
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TransformGenericToSpherePoint |
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TransformPoint2ToGeneric |
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TransformPoint2ToPoint2 |
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TransformPoint2ToSpherePoint |
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TransformSpherePointToGeneric |
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TransformSpherePointToPoint2 |
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TransformSpherePointToSpherePoint |
Class Inheritance Diagram¶
lsst.afw.geom.testUtils Module¶
Functions¶
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 |