Vector

Class Vector()

Vector(parent='MODEL', name='Vector_n', label='Vector_n', 
active=True, x=1, y=0, z=0)

3D Vector.

angle, normalize

Keyword Arguments

Argument	Data Type	Description	Default
name	String	The variable name.	Vector_n, for next available integer n.
label	String	The descriptive label.	Vector_n, for next available integer n.
parent	Object	The parent.	MODEL
active	Bool	Used to activate or deactivate this entity.	True
x	Double	The x component.	1
y	Double	The y component.	0
z	Double	The z component.	0

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.

Methods

angle(other, degrees=False)

Calculates angle between two vectors.


other	str	Name of the second vector. Can also be a python object.
degrees	Bool	If True returns the angle in degrees.	False

Returns:

Angle between self and other.

Return type:

Double

normalize()

Normalize the vector.

Returns:

Normalized vector.

Return type:

Vector

Vector Pair

Class VectorPair()

VectorPair(parent='MODEL', name='VectorPair_n', label='VectorPair_n', active=True, sym='NONE')

3D vector pair.

Keyword Arguments

Argument	Data Type	Description	Default
name	String	The variable name.	VectorPair_n, for next available integer n.
label	String	The descriptive label.	VectorPair_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.
r	Point	The right point.

Notes

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

Examples

========
Create a vector, modify its properties and perform different operations on the vector
>>> #Create a Vector and set its x, y and z component
>>> v1 = Vector(name='v_1', label='Vector_1', x=1, y=2, z=3)
>>> v2 = Vector(name='v_2', label='Vector_2', x=-3, y=0, z=1)
>>> #Unary minus
>>> v3 = -v1
>>> v3.x
-1
>>> v3.y
-2
>>> v3.z
-3
>>> #Addition
>>> v4 = v1 + v2
>>> v4.x
-2
>>> v4.y
2
>>> v4.z
4
>>> #Subtraction
>>> v5 = v1 - v2
>>> v5.x
4
>>> v5.y
4
>>> v5.z
2
>>> #Dot product of 2 vectors
>>> v1%v2
0
>>> #Cross product of 2 vectors
>>> v6 = v1*v2
>>> v6.x
0.169030850946
>>> v6.y
-0.845154254729
>>> v6.z
0.507092552837
>>> #Calculate angles between vectors
>>> v1.angle(v2)
1.5707963267948966
>>> v1.angle(v2, degrees=True)
90.0
>>> #Calculate magnitude of the vector
>>> v1.magnitude()
3.7416573867739413
>>> #Create a unit vector
>>> v7 = v1.normalize()
>>> v7.x
0.267261241912
>>> v7.y
0.534522483825
>>> v7.z
0.801783725737
>>> #Scale a vector with a factor
>>> v8 = v1*10
>>> v8.x
10
>>> v8.y
20
>>> v8.z
30