LSST Applications  21.0.0-172-gfb10e10a+18fedfabac,22.0.0+297cba6710,22.0.0+80564b0ff1,22.0.0+8d77f4f51a,22.0.0+a28f4c53b1,22.0.0+dcf3732eb2,22.0.1-1-g7d6de66+2a20fdde0d,22.0.1-1-g8e32f31+297cba6710,22.0.1-1-geca5380+7fa3b7d9b6,22.0.1-12-g44dc1dc+2a20fdde0d,22.0.1-15-g6a90155+515f58c32b,22.0.1-16-g9282f48+790f5f2caa,22.0.1-2-g92698f7+dcf3732eb2,22.0.1-2-ga9b0f51+7fa3b7d9b6,22.0.1-2-gd1925c9+bf4f0e694f,22.0.1-24-g1ad7a390+a9625a72a8,22.0.1-25-g5bf6245+3ad8ecd50b,22.0.1-25-gb120d7b+8b5510f75f,22.0.1-27-g97737f7+2a20fdde0d,22.0.1-32-gf62ce7b1+aa4237961e,22.0.1-4-g0b3f228+2a20fdde0d,22.0.1-4-g243d05b+871c1b8305,22.0.1-4-g3a563be+32dcf1063f,22.0.1-4-g44f2e3d+9e4ab0f4fa,22.0.1-42-gca6935d93+ba5e5ca3eb,22.0.1-5-g15c806e+85460ae5f3,22.0.1-5-g58711c4+611d128589,22.0.1-5-g75bb458+99c117b92f,22.0.1-6-g1c63a23+7fa3b7d9b6,22.0.1-6-g50866e6+84ff5a128b,22.0.1-6-g8d3140d+720564cf76,22.0.1-6-gd805d02+cc5644f571,22.0.1-8-ge5750ce+85460ae5f3,master-g6e05de7fdc+babf819c66,master-g99da0e417a+8d77f4f51a,w.2021.48
LSST Data Management Base Package
Public Member Functions | List of all members
lsst.obs.test.testCamera.TestCamera Class Reference
Inheritance diagram for lsst.obs.test.testCamera.TestCamera:

Public Member Functions

def __new__ (cls)
 
def __init__ (self)
 

Detailed Description

A simple test Camera.

Notes
-----
The camera has one ccd with name "0".
That CCD has four amplifiers with names "00", "01", "10", and "11".

The camera is modeled after a small portion of the LSST sim
Summer 2012 camera: a single detector with four amplifiers,
consisting of raft 2,2 sensor 0,0, half of channels 0,0 0,1 1,0 and 1,1
(the half closest to the Y centerline).

Note that the Summer 2012 camera has one very weird feature:
the bias region (rawHOverscanBbox) is actually a prescan
(it appears before the data pixels).

A raw image has the sky in the same orientation on all amplifier
subregions, so no amplifier subregions need their pixels to be flipped.

Standard keys are:

* ``amp``: amplifier number: one of 00, 01, 10, 11
* ``ccd``: ccd number: always 0
* ``visit``: exposure number; test data includes one exposure
    with visit=1

Definition at line 31 of file testCamera.py.

Constructor & Destructor Documentation

◆ __init__()

def lsst.obs.test.testCamera.TestCamera.__init__ (   self)

Definition at line 75 of file testCamera.py.

75  def __init__(self):
76  pass
77 

Member Function Documentation

◆ __new__()

def lsst.obs.test.testCamera.TestCamera.__new__ (   cls)

Definition at line 58 of file testCamera.py.

58  def __new__(cls):
59  plateScale = geom.Angle(20, geom.arcseconds) # plate scale, in angle on sky/mm
60  # Radial distortion is modeled as a radial polynomial that converts from focal plane (in mm)
61  # to field angle (in radians). Thus the coefficients are:
62  # C0: always 0, for continuity at the center of the focal plane; units are rad
63  # C1: 1/plateScale; units are rad/mm
64  # C2: usually 0; units are rad/mm^2
65  # C3: radial distortion; units are rad/mm^3
66  radialCoeff = np.array([0.0, 1.0, 0.0, 0.925]) / plateScale.asRadians()
67  fieldAngleToFocalPlane = afwGeom.makeRadialTransform(radialCoeff)
68  focalPlaneToFieldAngle = fieldAngleToFocalPlane.inverted()
69 
70  camera = cameraGeom.Camera.Builder("test")
71  cls._makeDetectors(camera, focalPlaneToFieldAngle)
72  camera.setTransformFromFocalPlaneTo(cameraGeom.FIELD_ANGLE, focalPlaneToFieldAngle)
73  return camera.finish()
74 
A class representing an angle.
Definition: Angle.h:127
std::shared_ptr< TransformPoint2ToPoint2 > makeRadialTransform(std::vector< double > const &coeffs)
A purely radial polynomial distortion.

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