Code Won't Animate in 2-D Path Tracing With Inverse Kinematics

I am looking at the following example:

https://www.mathworks.com/help/robotics/ug/2d-inverse-kinematics-example.html

The code after this line doesn't animate. I just see an image of the previos figure's rendering. How do I get it to animate?

Set up a rateControl object to display the robot trajectory at a fixed rate of 15 frames per second. Show the robot in each configuration from the inverse kinematic solver. Watch as the arm traces the circular trajectory shown. -------> THIS DIESN'T HAPPEN; NOTHING IS DISPLAYED.

I ran the script file, and only the first image on the page is displayed.

Answer 1

[Cris LaPierre]

Did you try opening the example file itself?

openExample('robotics/TwoDInverseKinematicsExampleExample')

[N]

Yes, I ran this: openExample('robotics/TwoDInverseKinematicsExampleExample')

[N]

To clarify, i did run exactly that, but it doesn't work (the animation or the second show command).

[Cris LaPierre]

What version of MATLAB are you using?

[N]

I am using the online version. this is the URL: Matlab Online 2020b

https://matlab.mathworks.com/?s_v1=33935&elqem=3214714_EM1_WW_NUR_20-09_CWL-STUDENT-ACTIVATION

And this is what I am trying to run: /MATLAB Drive/Examples/R2020b/robotics/TwoDInverseKinematicsExampleExample

[Cris LaPierre]

I see the same thing in MATLAB Online. I think the animation is running, but it's not able to display it in the figure window until it finishes. I don't know the exact reason why, but show is part of the Robotics System Toolbox, which is not yet supported in MATLAB Online. See here for a list of limitations.

[N]

Ok, thanks for letting me know. Can you please tell me how I can install the Robot System Tollbox package to my desktop version?

[Cris LaPierre]

Use the Add Ons Explorer.

[N]

It suddenly seems to be working online now.