Point Mass Body

Class PointMassBody()

PointMassBody(parent='MODEL', name='PointMassBody_n', 
label='PointMassBody_n', active=True, mass=0, use_vx=False, use_vy=False, 
use_vz=False, vx=0, vy=0, vz=0, usecm=False, cg=None)

Point mass body.

Keyword Arguments

Argument	Data Type	Description	Default
name	String	The variable name.	Body_n, for next available integer n.
label	String	The descriptive label.	Body_n, for next available integer n.
parent	Object	The parent.	MODEL
active	Boolean	Used to activate or deactivate this entity.	True
mass	Double	The mass.	0
use_vx	Bool	Use initial translation velocity in x direction when True.	False
use_vy	Bool	Use initial translation velocity in y direction when True.	False
use_vz	Bool	Use initial translation velocity in z direction when True.	False
vx	Double	The initial translation velocity in x direction.	0
vy	Double	The initial translation velocity in y direction.	0
vz	Double	The initial translation velocity in z direction.	0
usecm	Bool	Use center of mass coordinate system when True.	False
cg	Point	The origin for center of mass coordinate system.	None

Instances

cm (Marker) - The marker for center of mass coordinate system.

Notes

1. The parent parameter can only be initialized by the constructor and should not be modified directly.

2. Only parent can be used as a positional argument in the constructor.

3. Instance is a reference to an entity. You cannot modify an instance, but can modify its properties.

Point Mass Body Pair

Class PointMassBodyPair()

PointMassBodyPair(parent='MODEL', name='PointMassBodyPair_n', label='PointMassBodyPair_n', active=True, sym='NONE')

PointMassBody pair containing left and right instances of singles.

Keyword Arguments

Argument	Data Type	Description	Default
name	String	The variable name.	PointMassBodyPair_n, for next available integer n.
label	String	The descriptive label.	PointMassBodyPair_n, for next available integer n.
parent	Object	The parent.	MODEL
active	Bool	Defines if entity is activated when True or deactivated when False.	True
sym	Enum	The symmetry of pair entity. Takes values "LEFT" for left entity as leader, "RIGHT" for right entity as leader or "NONE" when it is not symmetric.	'NONE'

Instances

Instance	Type	Description
l	Point	The left point mass body.
r	Point	The right point mass body.

Notes

Instance is a reference to an entity. You cannot modify an instance, but can modify its properties.

Examples

========
Create PointMassBody and modify its attribute values.
>>> # Create a Pair of PointMassBody
>>> pmbp1 = mview.PointMassBodyPair(name="pmbp_1", label="PointMassBody Pair 1", sym="LEFT")
>>> pmbp1.mass = 10
>>> pmbp1.usecm = True
>>> pmbp1.cg = mview.PointPair(x=1, y=1, z=1, sym="LEFT")
>>> # You can also align cm with other methods. For example:
>>> pmbp1.cm.setValues(ornt_meth = "TWOAXES", ornt_dir1 = "Z", align_meth1 = "Point", align_meth2 = "Point")
>>> pmbp1.cm.setValues(origin=mview.PointPair(x=1, y=1, z=1, sym="LEFT"), align_pt1=mview.PointPair(x=2, y=1, z=1, sym="LEFT"), align_pt2=mview.PointPair(x=1, y=1, z=2, sym="LEFT"))
>>> pmbp1.l.setValues(use_vy = True, vy = 20, use_vz = True, vz = 30)
>>> pmbp1.r.setValues(use_vx = True, vx = 10)