lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga Class Reference

Inheritance diagram for lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga:

Public Member Functions
	__init__ (self, wcs)
	pixtoradec (self, idxs, coords='data')
	pixtosystem (self, idxs, system=None, coords='data')
	radectopix (self, ra_deg, dec_deg, coords='data', naxispath=None)
	all_pix2world (self, *args, **kwargs)
	datapt_to_wcspt (self, *args)
	wcspt_to_datapt (self, *args)

Protected Attributes
	_wcs

Detailed Description

A class to adapt the LSST Wcs class for Ginga.

This was taken largely from the afw.display.ginga package.

Parameters
----------
wcs : `ginga.util.wcsmod.wcs_astropy`
    WCS to adapt for Ginga.

Definition at line 501 of file astrowidgets.py.

Constructor & Destructor Documentation

__init__()

lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga.__init__	(		self,
			wcs )

Definition at line 511 of file astrowidgets.py.

    def __init__(self, wcs):
        self._wcs = wcs
 

Member Function Documentation

all_pix2world()

lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga.all_pix2world	(		self,
		*	args,
		**	kwargs )

Definition at line 576 of file astrowidgets.py.

    def all_pix2world(self, *args, **kwargs):
        out = []
        print(f"{args}")
        for pos in args[0]:
            r, d = self.pixtoradec(pos)
            out.append([r, d])
            return tuple(out)
 

datapt_to_wcspt()

lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga.datapt_to_wcspt	(		self,
		*	args )

Definition at line 584 of file astrowidgets.py.

    def datapt_to_wcspt(self, *args):
        return (0.0, 0.0)
 

pixtoradec()

lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga.pixtoradec	(		self,
			idxs,
			coords = 'data' )

Return (ra, dec) in degrees given a position in pixels.

Parameters
----------
idxs : `list` [`tuple` [`float`, `float`]]
    Pixel locations to convert.
coords  : `str`, optional
    This parameter is ignored.
Returns
-------
ra : `list`
    RA position in degrees.
dec : `list`
    DEC position in degrees.

Definition at line 514 of file astrowidgets.py.

    def pixtoradec(self, idxs, coords='data'):
        """Return (ra, dec) in degrees given a position in pixels.
 
        Parameters
        ----------
        idxs : `list` [`tuple` [`float`, `float`]]
            Pixel locations to convert.
        coords  : `str`, optional
            This parameter is ignored.
        Returns
        -------
        ra : `list`
            RA position in degrees.
        dec : `list`
            DEC position in degrees.
        """
        ra, dec = self._wcs.pixelToSky(*idxs)
 
        return ra.asDegrees(), dec.asDegrees()
 

pixtosystem()

lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga.pixtosystem	(		self,
			idxs,
			system = None,
			coords = 'data' )

Return (ra, dec) in degrees given a position in pixels.

Parameters
----------
idxs : `list` [`tuple` [`float`, `float`]]
    Pixel locations to convert.
system : `str`, optional
    This parameter is ignored.
coords : `str`, optional
    This parameter is ignored.

Returns
-------
ra : `list`
    RA position in degrees.
dec : `list`
    DEC position in degrees.

Definition at line 534 of file astrowidgets.py.

    def pixtosystem(self, idxs, system=None, coords='data'):
        """Return (ra, dec) in degrees given a position in pixels.
 
        Parameters
        ----------
        idxs : `list` [`tuple` [`float`, `float`]]
            Pixel locations to convert.
        system : `str`, optional
            This parameter is ignored.
        coords : `str`, optional
            This parameter is ignored.
 
        Returns
        -------
        ra : `list`
            RA position in degrees.
        dec : `list`
            DEC position in degrees.
        """
        return self.pixtoradec(idxs, coords=coords)
 

radectopix()

lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga.radectopix	(		self,
			ra_deg,
			dec_deg,
			coords = 'data',
			naxispath = None )

Return (x, y) in pixels given (ra, dec) in degrees

Parameters
----------
ra_deg : `list` [`float`]
    RA position in degrees.
dec_deg : `list` [`float`]
    DEC position in degrees.
coords : `str`, optional
    This parameter is ignored.
naxispath : `str`, optional
    This parameter is ignored.

Returns
-------
out : `tuple` [`list` [`float, `float`]]
    Image coordates for input positions.

Definition at line 555 of file astrowidgets.py.

    def radectopix(self, ra_deg, dec_deg, coords='data', naxispath=None):
        """Return (x, y) in pixels given (ra, dec) in degrees
 
        Parameters
        ----------
        ra_deg : `list` [`float`]
            RA position in degrees.
        dec_deg : `list` [`float`]
            DEC position in degrees.
        coords : `str`, optional
            This parameter is ignored.
        naxispath : `str`, optional
            This parameter is ignored.
 
        Returns
        -------
        out : `tuple` [`list` [`float, `float`]]
            Image coordates for input positions.
        """
        return self._wcs.skyToPixel(ra_deg*afwGeom.degrees, dec_deg*afwGeom.degrees)
 

wcspt_to_datapt()

lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga.wcspt_to_datapt	(		self,
		*	args )

Definition at line 587 of file astrowidgets.py.

    def wcspt_to_datapt(self, *args):
        return (0.0, 0.0)

Member Data Documentation

_wcs

lsst.display.astrowidgets.astrowidgets.WcsAdaptorForGinga._wcs

protected

Definition at line 512 of file astrowidgets.py.

---

The documentation for this class was generated from the following file:

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-8.0.0/Linux64/display_astrowidgets/g2bbee38e9b+0e5473021a/python/lsst/display/astrowidgets/astrowidgets.py