Curl Class Reference

Inheritance diagram for Curl:

Public Member Functions
	__init__ (self, scale, scale2=0.)
	__call__ (self, xyz)

Public Attributes
	scale2 = scale2
	second scale for 1/r member
	scale = scale
	scaling parameter of the deformation

Protected Member Functions
	_transform (self, r, phi, z)
	_xyz_to_rphiz (self, xyz)
	_rphiz_to_xyz (self, rphiz)

Detailed Description

 Curl 

Definition at line 83 of file misalignment.py.

Constructor & Destructor Documentation

__init__()

__init__	(		self,
			scale,
			scale2 = 0. )

 init with scale, optionally scale2 for 1/r dependency 

Definition at line 86 of file misalignment.py.

    def __init__(self, scale, scale2=0.):
        """ init with scale, optionally scale2 for 1/r dependency """
 
        
        self.scale2 = scale2
        super().__init__(scale)
 

Member Function Documentation

__call__()

__call__ ( self, xyz )

inherited

 Return TVector3 with difference in global position induced by the deformation,
given the original x,y,z position as TVector3 or a list with length of 3.

Definition at line 30 of file misalignment.py.

    def __call__(self, xyz):
        """ Return TVector3 with difference in global position induced by the deformation,
        given the original x,y,z position as TVector3 or a list with length of 3.
        """
 
        rphiz = self._xyz_to_rphiz(xyz)
        d_rphiz = self._transform(rphiz[0], rphiz[1], rphiz[2])
 
        rphiz[0] += d_rphiz[0]
        rphiz[1] += d_rphiz[1]
        rphiz[2] += d_rphiz[2]
 
        new_xyz = self._rphiz_to_xyz(rphiz)
 
        d_xyz = ROOT.TVector3(new_xyz[0] - xyz[0], new_xyz[1] - xyz[1], new_xyz[2] - xyz[2])
 
        return d_xyz
 

_rphiz_to_xyz()

_rphiz_to_xyz ( self, rphiz )

protectedinherited

 Convert (r,phi,z) to (x,y,z) 

Definition at line 62 of file misalignment.py.

    def _rphiz_to_xyz(self, rphiz):
        """ Convert (r,phi,z) to (x,y,z) """
        import math
        z = rphiz[2]
        y = rphiz[0] * math.sin(rphiz[1])
        x = rphiz[0] * math.cos(rphiz[1])
        return [x, y, z]
 
 

_transform()

_transform ( self, r, phi, z )

protected

 the transformation 

Reimplemented from GlobalDeformation.

Definition at line 93 of file misalignment.py.

    def _transform(self, r, phi, z):
        """ the transformation """
        return [0., self.scale * r + self.scale2 / r, 0.]
 
 

_xyz_to_rphiz()

_xyz_to_rphiz ( self, xyz )

protectedinherited

 Convert (x,y,z) to (r,phi,z) 

Definition at line 51 of file misalignment.py.

    def _xyz_to_rphiz(self, xyz):
        """ Convert (x,y,z) to (r,phi,z) """
        import math
        x = xyz[0]
        y = xyz[1]
        z = xyz[2]
        r = math.sqrt(x * x + y * y)
        phi = math.atan2(y, x)
        rphiz = [r, phi, z]
        return rphiz
 

Member Data Documentation

scale

scale = scale

inherited

scaling parameter of the deformation

Definition at line 28 of file misalignment.py.

scale2

scale2 = scale2

second scale for 1/r member

Definition at line 90 of file misalignment.py.

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

• alignment/scripts/alignment/misalignment.py