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Package csb :: Package bio :: Package structure :: Class TorsionAngles
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Class TorsionAngles

source code

object --+
         |
        TorsionAngles

Describes a collection of phi, psi and omega backbone torsion angles.

It is assumed that the supplied values are either None, or fitting into the range of [-180, +180] for AngleUnites.Degrees and [0, 2pi] for Radians.

Instance Methods
 
__bool__(self) source code
 
__init__(self, phi, psi, omega, units=Degrees)
x.__init__(...) initializes x; see help(type(x)) for signature		 source code
 
__nonzero__(self) source code
 
__repr__(self)
repr(x)		 source code
 
copy(self)
Returns: a deep copy of self		 source code
 
to_degrees(self)
Set angle measurement units to degrees.		 source code
 
to_radians(self)
Set angle measurement units to radians.		 source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __str__, __subclasshook__

Static Methods
 
check_angle(angle, units)
Check the value of a torsion angle expressed in the specified units.		 source code
 
deg(angle)
Convert a torsion angle value, expressed in radians, to degrees.		 source code
 
rad(angle)
Convert a torsion angle value, expressed in degrees, to radians.		 source code
Properties
  omega
  phi
  psi
enum item units
Current torsion angle units - a member of AngleUnits

Inherited from object: __class__

Method Details

__init__(self, phi, psi, omega, units=Degrees)
(Constructor)

source code 

x.__init__(...) initializes x; see help(type(x)) for signature

Parameters:
  • phi (float) - phi angle value in units
  • psi (float) - psi angle value in units
  • omega (float) - omega angle value in units
  • units (csb.core.EnumItem) - any of AngleUnits's enum members
Raises:
  • ValueError - on invalid/unknown units
Overrides: object.__init__
(inherited documentation)

__repr__(self)
(Representation operator)

source code 

repr(x)

Overrides: object.__repr__
(inherited documentation)

copy(self)

source code 
Returns:
a deep copy of self

deg(angle)
Static Method

source code 

Convert a torsion angle value, expressed in radians, to degrees. Negative angles are not accepted, it is assumed that negative torsion angles have been converted to their ang+2pi counterparts beforehand.

Return the calculated value in the range of [-180, +180] degrees.

rad(angle)
Static Method

source code 

Convert a torsion angle value, expressed in degrees, to radians. Negative angles are converted to their positive counterparts: rad(ang + 360deg).

Return the calculated value in the range of [0, 2pi] radians.

to_degrees(self)

source code 

Set angle measurement units to degrees. Convert the angles in this TorsionAngles instance to degrees.

to_radians(self)

source code 

Set angle measurement units to radians. Convert the angles in this TorsionAngles instance to radians.


Property Details

omega

Get Method:
unreachable.omega(self)
Set Method:
unreachable.omega(self, omega)

phi

Get Method:
unreachable.phi(self)
Set Method:
unreachable.phi(self, phi)

psi

Get Method:
unreachable.psi(self)
Set Method:
unreachable.psi(self, psi)

units

Current torsion angle units - a member of AngleUnits

Get Method:
unreachable.units(self) - Current torsion angle units - a member of AngleUnits
Type:
enum item

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