Inheritance diagram for lsst.fgcmcal.focalPlaneProjector.FocalPlaneProjector:

Public Member Functions
def	__init__ (self, camera, defaultOrientation)

def	__call__ (self, orientation, nstep=50, use_cache=True)

Public Attributes
	camera

	boresight

	flipX

	defaultOrientation

Detailed Description

Class to project the focal plane onto the sky.

Parameters
----------
camera : `lsst.afw.cameraGeom.Camera`
    Camera from the butler.
defaultOrientation : `int`
    Default camera orientation in degrees.  This angle is the position
    angle of the focal plane +Y with respect to north.

Definition at line 37 of file focalPlaneProjector.py.

Constructor & Destructor Documentation

◆ init()

def lsst.fgcmcal.focalPlaneProjector.FocalPlaneProjector.__init__	(	self,
		camera,
		defaultOrientation
	)

Definition at line 49 of file focalPlaneProjector.py.

     def __init__(self, camera, defaultOrientation):
         self.camera = camera
  
         # Put the reference boresight at the equator to avoid cos(dec) problems.
         self.boresight = geom.SpherePoint(180.0*geom.degrees, 0.0*geom.degrees)
         self.flipX = False
         self.defaultOrientation = int(defaultOrientation) % 360
  

Member Function Documentation

◆ call()

def lsst.fgcmcal.focalPlaneProjector.FocalPlaneProjector.__call__	(	self,
		orientation,
		nstep = `50`,
		use_cache = `True`
	)

Make a focal plane projection mapping for use with fgcm.

Parameters
----------
orientation : `float` or `int`
    Camera orientation in degrees.  This angle is the position
    angle of the focal plane +Y with respect to north.
nstep : `int`
    Number of steps in x/y per detector for the mapping.
use_cache : `bool`, optional
    Use integerized cached lookup.

Returns
-------
projectionMapping : `np.ndarray`
    A projection mapping object with x, y, x_size, y_size,
    delta_ra_cent, delta_dec_cent, delta_ra, delta_dec for
    each detector id.

Definition at line 86 of file focalPlaneProjector.py.

     def __call__(self, orientation, nstep=50, use_cache=True):
         """
         Make a focal plane projection mapping for use with fgcm.
  
         Parameters
         ----------
         orientation : `float` or `int`
             Camera orientation in degrees.  This angle is the position
             angle of the focal plane +Y with respect to north.
         nstep : `int`
             Number of steps in x/y per detector for the mapping.
         use_cache : `bool`, optional
             Use integerized cached lookup.
  
         Returns
         -------
         projectionMapping : `np.ndarray`
             A projection mapping object with x, y, x_size, y_size,
             delta_ra_cent, delta_dec_cent, delta_ra, delta_dec for
             each detector id.
         """
         if not np.isfinite(orientation):
             warnings.warn('Encountered non-finite orientation; using default.')
             _orientation = self.defaultOrientation
         else:
             _orientation = orientation % 360
  
         if use_cache:
             _orientation = int(_orientation)
  
             return self._compute_cached_projection(int(_orientation), nstep=nstep)
         else:
             return self._compute_projection(_orientation, nstep=nstep)
  

Member Data Documentation

◆ boresight

lsst.fgcmcal.focalPlaneProjector.FocalPlaneProjector.boresight

Definition at line 53 of file focalPlaneProjector.py.

◆ camera

lsst.fgcmcal.focalPlaneProjector.FocalPlaneProjector.camera

Definition at line 50 of file focalPlaneProjector.py.

◆ defaultOrientation

lsst.fgcmcal.focalPlaneProjector.FocalPlaneProjector.defaultOrientation

Definition at line 55 of file focalPlaneProjector.py.

◆ flipX

lsst.fgcmcal.focalPlaneProjector.FocalPlaneProjector.flipX

Definition at line 54 of file focalPlaneProjector.py.

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

/j/snowflake/release/lsstsw/stack/lsst-scipipe-0.7.0/Linux64/fgcmcal/22.0.1-15-g6a90155+515f58c32b/python/lsst/fgcmcal/focalPlaneProjector.py

Public Member Functions

Public Attributes