SkyWcs¶

class lsst.afw.geom.SkyWcs¶

Bases: Storable

Attributes Summary

`isFits`
`isFlipped`

Methods Summary

`copyAtShiftedPixelOrigin`(self, shift)
`getCdMatrix`(args, *kwargs)	Overloaded function.
`getFitsMetadata`(self[, precise])
`getFrameDict`(self)
`getPixelOrigin`(self)
`getPixelScale`(args, *kwargs)	Overloaded function.
`getSkyOrigin`(self)
`getTanWcs`(self, pixel)
`getTransform`(self)
`isPersistable`(self)
`linearizePixelToSky`(args, *kwargs)	Overloaded function.
`linearizeSkyToPixel`(args, *kwargs)	Overloaded function.
`pixelToSky`(args, *kwargs)	Overloaded function.
`pixelToSkyArray`(x, y[, degrees])	Convert numpy array pixels (x, y) to numpy array sky (ra, dec) positions.
`readFits`(args, *kwargs)	Overloaded function.
`readString`(arg0)
`skyToPixel`(args, *kwargs)	Overloaded function.
`skyToPixelArray`(ra, dec[, degrees])	Convert numpy array sky (ra, dec) positions to numpy array pixels (x, y).
`writeFits`(args, *kwargs)	Overloaded function.
`writeString`(self)

Attributes Documentation

isFits¶

isFlipped¶

Methods Documentation

copyAtShiftedPixelOrigin(self: lsst.afw.geom.SkyWcs, shift: lsst.geom.Extent2D) → lsst.afw.geom.SkyWcs¶

getCdMatrix(*args, **kwargs)¶

Overloaded function.

getCdMatrix(self: lsst.afw.geom.SkyWcs, pixel: lsst.geom.Point2D) -> numpy.ndarray[numpy.float64[2, 2]]
getCdMatrix(self: lsst.afw.geom.SkyWcs) -> numpy.ndarray[numpy.float64[2, 2]]

getFitsMetadata(self: lsst.afw.geom.SkyWcs, precise: bool = False) → lsst.daf.base.propertyContainer.propertyList.PropertyList¶

getFrameDict(self: lsst.afw.geom.SkyWcs) → astshim.frameDict.FrameDict¶

getPixelOrigin(self: lsst.afw.geom.SkyWcs) → lsst.geom.Point2D¶

getPixelScale(*args, **kwargs)¶

Overloaded function.

getPixelScale(self: lsst.afw.geom.SkyWcs, pixel: lsst.geom.Point2D) -> lsst.geom.Angle
getPixelScale(self: lsst.afw.geom.SkyWcs) -> lsst.geom.Angle

getSkyOrigin(self: lsst.afw.geom.SkyWcs) → lsst.geom.SpherePoint¶

getTanWcs(self: lsst.afw.geom.SkyWcs, pixel: lsst.geom.Point2D) → lsst.afw.geom.SkyWcs¶

getTransform(self: lsst.afw.geom.SkyWcs) → lsst.afw.geom.TransformPoint2ToSpherePoint¶

isPersistable(self: lsst.afw.geom.SkyWcs) → bool¶

linearizePixelToSky(*args, **kwargs)¶

Overloaded function.

linearizePixelToSky(self: lsst.afw.geom.SkyWcs, coord: lsst.geom.SpherePoint, skyUnit: lsst.geom.AngleUnit) -> lsst.geom.AffineTransform
linearizePixelToSky(self: lsst.afw.geom.SkyWcs, coord: lsst.geom.Point2D, skyUnit: lsst.geom.AngleUnit) -> lsst.geom.AffineTransform

linearizeSkyToPixel(*args, **kwargs)¶

Overloaded function.

linearizeSkyToPixel(self: lsst.afw.geom.SkyWcs, coord: lsst.geom.SpherePoint, skyUnit: lsst.geom.AngleUnit) -> lsst.geom.AffineTransform
linearizeSkyToPixel(self: lsst.afw.geom.SkyWcs, coord: lsst.geom.Point2D, skyUnit: lsst.geom.AngleUnit) -> lsst.geom.AffineTransform

pixelToSky(*args, **kwargs)¶

Overloaded function.

pixelToSky(self: lsst.afw.geom.SkyWcs, pixel: lsst.geom.Point2D) -> lsst.geom.SpherePoint
pixelToSky(self: lsst.afw.geom.SkyWcs, x: float, y: float) -> lsst.geom.SpherePoint
pixelToSky(self: lsst.afw.geom.SkyWcs, pixel: List[lsst.geom.Point2D]) -> List[lsst.geom.SpherePoint]

pixelToSkyArray(x, y, degrees=False)¶

Convert numpy array pixels (x, y) to numpy array sky (ra, dec) positions.

Parameters:

xnp.ndarray: Array of x values.
ynp.ndarray: Array of y values.
degreesbool, optional: Return ra, dec arrays in degrees if True.

Returns:

ranp.ndarray: Array of Right Ascension. Units are radians unless degrees=True.
decnp.ndarray: Array of Declination. Units are radians unless degrees=True.

static readFits(*args, **kwargs)¶

Overloaded function.

readFits(fileName: str, hdu: int = -2147483648) -> lsst.afw.geom.SkyWcs
readFits(manager: lsst::afw::fits::MemFileManager, hdu: int = -2147483648) -> lsst.afw.geom.SkyWcs

static readString(arg0: str) → lsst.afw.geom.SkyWcs¶

skyToPixel(*args, **kwargs)¶

Overloaded function.

skyToPixel(self: lsst.afw.geom.SkyWcs, sky: lsst.geom.SpherePoint) -> lsst.geom.Point2D
skyToPixel(self: lsst.afw.geom.SkyWcs, sky: List[lsst.geom.SpherePoint]) -> List[lsst.geom.Point2D]

skyToPixelArray(ra, dec, degrees=False)¶

Convert numpy array sky (ra, dec) positions to numpy array pixels (x, y).

Parameters:

ranp.ndarray: Array of Right Ascension. Units are radians unless degrees=True.
decnp.ndarray: Array of Declination. Units are radians unless degrees=True.
degreesbool, optional: Input ra, dec arrays are degrees if True.

Returns:

xnp.ndarray: Array of x values.
ynp.ndarray: Array of y values.

writeFits(*args, **kwargs)¶

Overloaded function.

writeFits(self: lsst.afw.geom.SkyWcs, fileName: str, mode: str = ‘w’) -> None
writeFits(self: lsst.afw.geom.SkyWcs, manager: lsst::afw::fits::MemFileManager, mode: str = ‘w’) -> None

writeString(self: lsst.afw.geom.SkyWcs) → str¶

Navigation

SkyWcs¶