How Can You Determine Roll, Pitch, and Yaw from an End-Effector's Position?

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SUMMARY

This discussion focuses on determining roll, pitch, and yaw angles from the end-effector's position of a robotic arm, specifically when given x, y, z coordinates. The user intends to utilize Inverse Kinematics (IK) to evaluate the feasibility of these angles. A key point raised is the requirement of three points to define a plane for calculating these angles, highlighting the need for additional reference points beyond the end-effector and the root of the arm.

PREREQUISITES
  • Understanding of Inverse Kinematics (IK)
  • Knowledge of 3D coordinate systems
  • Familiarity with roll, pitch, and yaw definitions
  • Basic concepts of robotic arm kinematics
NEXT STEPS
  • Research methods for calculating roll, pitch, and yaw from 3D coordinates
  • Explore advanced Inverse Kinematics algorithms
  • Learn about defining planes in 3D space using multiple points
  • Investigate tools for simulating robotic arm movements and orientations
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Robotics engineers, developers working with robotic arms, and anyone involved in motion planning and control systems for robotic applications.

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how to find roll, pitch yaw...

given an x,y,z position for the end of an robot arm(end effector), is there any way to find the roll, pitch and yaw for it...Given access to entire history of x-y-z positions. I'll be using IK then to evaluate whether these values are possible or not. All I need to find is just some 'correct' value for them...

any pointers for how to compute the roll-pitch-yaw values...
 
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Correct me if I'm wrong, but roll, pitch and yaw apply to a plane. You need 3 points to define a plane. You identify one, the end of the robot arm. A second point would be the root of the arm. Looks to me like you are one point short.
 

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