LSSTApplications  17.0+50,17.0+84,17.0+9,18.0.0+14,18.0.0+2,18.0.0+30,18.0.0+4,18.0.0+9,18.0.0-2-ge43143a+4,18.1.0-1-g0001055,18.1.0-1-g0896a44+6,18.1.0-1-g1349e88+4,18.1.0-1-g2505f39+3,18.1.0-1-g380d4d4+4,18.1.0-1-g5e4b7ea,18.1.0-1-g85f8cd4+3,18.1.0-1-g9a6769a+2,18.1.0-1-ga1a4c1a+2,18.1.0-1-gc037db8,18.1.0-1-gd55f500+1,18.1.0-1-ge10677a+3,18.1.0-10-g73b8679e+7,18.1.0-11-g311e899+3,18.1.0-12-g0d73a3591,18.1.0-12-gc95f69a+3,18.1.0-2-g000ad9a+3,18.1.0-2-g31c43f9+3,18.1.0-2-g9c63283+4,18.1.0-2-gdf0b915+4,18.1.0-2-gf03bb23,18.1.0-3-g2e29e3d+6,18.1.0-3-g52aa583+2,18.1.0-3-g9cb968e+3,18.1.0-4-gd2e8982+6,18.1.0-5-g510c42a+3,18.1.0-5-gaeab27e+4,18.1.0-6-gdda7f3e+6,18.1.0-7-g89824ecc+4,w.2019.32
LSSTDataManagementBasePackage
Functions | Variables
lsst.afw.geom.python.transform Namespace Reference

Functions

def getJacobian (self, x)
 
def then (self, next, simplify=True)
 
def unpickleTransform (cls, state)
 
def reduceTransform (transform)
 
def addTransformMethods (cls)
 

Variables

dictionary transformRegistry = {}
 
 toEndpoint
 
 getJacobian
 
 then
 

Function Documentation

◆ addTransformMethods()

def lsst.afw.geom.python.transform.addTransformMethods (   cls)
Add pure python methods to the specified Transform class, and register
the class in `transformRegistry`

All :ref:`_pybind11_transform_classes` must call this function.

Parameters
----------
cls : :ref:`_pybind11_transform_classes`
A Transform class or subclass, e.g.
`lsst.afw.geom.TransformPoint2ToSpherePoint`

Definition at line 94 of file transform.py.

94 def addTransformMethods(cls):
95  """Add pure python methods to the specified Transform class, and register
96  the class in `transformRegistry`
97 
98  All :ref:`_pybind11_transform_classes` must call this function.
99 
100  Parameters
101  ----------
102  cls : :ref:`_pybind11_transform_classes`
103  A Transform class or subclass, e.g.
104  `lsst.afw.geom.TransformPoint2ToSpherePoint`
105  """
106  global transformRegistry
107  className = cls.__name__
108  if className in transformRegistry:
109  raise RuntimeError("Class %r=%s already registered; cannot register class %s" %
110  (className, transformRegistry[className], cls))
111  transformRegistry[cls.__name__] = cls
112  cls.getJacobian = getJacobian
113  cls.then = then
114  cls.__reduce__ = reduceTransform
115 

◆ getJacobian()

def lsst.afw.geom.python.transform.getJacobian (   self,
  x 
)

Definition at line 47 of file transform.py.

47 def getJacobian(self, x):
48  # Force 2D matrix over numpy's protests
49  matrix = self._getJacobian(x)
50  matrix.shape = (self.toEndpoint.nAxes,
51  self.fromEndpoint.nAxes)
52  return matrix
53 
54 

◆ reduceTransform()

def lsst.afw.geom.python.transform.reduceTransform (   transform)
Pickle a Transform object

This provides the `__reduce__` implementation for a Transform.

Definition at line 86 of file transform.py.

86 def reduceTransform(transform):
87  """Pickle a Transform object
88 
89  This provides the `__reduce__` implementation for a Transform.
90  """
91  return unpickleTransform, (type(transform), transform.writeString())
92 
93 
def reduceTransform(transform)
Definition: transform.py:86
table::Key< int > type
Definition: Detector.cc:167

◆ then()

def lsst.afw.geom.python.transform.then (   self,
  next,
  simplify = True 
)
Concatenate two transforms

The result of A.then(B) is is C(x) = B(A(x))

Definition at line 55 of file transform.py.

55 def then(self, next, simplify=True):
56  """Concatenate two transforms
57 
58  The result of A.then(B) is is C(x) = B(A(x))
59  """
60  if self.toEndpoint == next.fromEndpoint:
61  return self._then(next, simplify=simplify)
62  else:
64  "Cannot concatenate %r and %r: endpoints do not match."
65  % (self, next))
66 
67 
Reports invalid arguments.
Definition: Runtime.h:66
def then(self, next, simplify=True)
Definition: transform.py:55

◆ unpickleTransform()

def lsst.afw.geom.python.transform.unpickleTransform (   cls,
  state 
)
Unpickle a Transform object

Parameters
----------
cls : `type`
    A `Transform` class.
state : `str`
    Pickled state.

Returns
-------
transform : `cls`
    The unpickled Transform.

Definition at line 68 of file transform.py.

68 def unpickleTransform(cls, state):
69  """Unpickle a Transform object
70 
71  Parameters
72  ----------
73  cls : `type`
74  A `Transform` class.
75  state : `str`
76  Pickled state.
77 
78  Returns
79  -------
80  transform : `cls`
81  The unpickled Transform.
82  """
83  return cls.readString(state)
84 
85 
def unpickleTransform(cls, state)
Definition: transform.py:68

Variable Documentation

◆ getJacobian

lsst.afw.geom.python.transform.getJacobian

Definition at line 112 of file transform.py.

◆ then

lsst.afw.geom.python.transform.then

Definition at line 113 of file transform.py.

◆ toEndpoint

lsst.afw.geom.python.transform.toEndpoint

Definition at line 60 of file transform.py.

◆ transformRegistry

dictionary lsst.afw.geom.python.transform.transformRegistry = {}

Definition at line 44 of file transform.py.