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Library used to control the Orbita actuator

Project description

Orbita python module

Actuator description

To control this actuator, a vector must be used to represent the orientation of the platform. An angle must also be identified to know the rotation of the platform on its own Z axis.

The orbita library allows the user to chose the orientation of the platform by typing a vector and an angle and to get the angles of the disks needed to do this rotation of the platform.

It also allows the user to use a quaternion (which can be provided by another system) to represent the rotation of the platform and get the angles of the disks.


Use the package manager pip to install the orbita library.

pip install orbita


from orbita import *
a = Actuator([0,0,85],[0,0,65],35) #Creates the actuator object
a.from_vector_get_new_frame(vector,angle) #returns new X,Y,Z vectors coordinates
a.from_vector_get_angles(vector,angle) #returns q11,q12 and q13 angles values
a.from_quaternion_get_new_frame(quaternion) #returns new X,Y,Z vectors coordinates
a.from_quaternion_get_angles(quaternion) #returns q11,q12 and q13 angles values

The last method needs the last angular position of the disks. These values need to be reset everytime the user reset the position of the disks.


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