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TrajectoryGeneration

This is created for the 2021 FRC challenge in which our robot were required to follow specific trajectories

Given robot parameters such as mass, moment_of_inertia, motor_constants, gear_ratio, etc. it can develop a drivetrain model that uses linear approximations to accurately display the behaviour of the robot.

Using this information, it then, given a list of waypoints develops a path that currently optimizes torque and curvature. torque is the torque the motors apply, which prevents the robot from stressing its motors and curvature is just to make the path smoother. More optimizers can be added, but this was all that was needed for the challenge.

It solves the problem using drake and utilizes the non linear solver, which is a stochastic gradient descent algorithm. It outputs several useful graphs such as: velocity, angle, angular velocity, position, and left_motor voltage and right_motor voltage.

Eventually, this can be used with a state space algorithm using LQR to develop a gain matrix K, but this has not been implemented.