How to use function "setBlockParameter" to set the parameter of Simulink block "prismatic joint"?

"Prismatic joint" is a block in the Simscape Multibody library. Function "setBlockParameter" is used to set parameter of a block. But it seem unable to set the parameter of such block. Here is the code and display.

But there is indeed a parameter called as above.

So .....

Answer 1

[Clayton Gotberg]

I believe the issue is that the parameter name is simpler than the path you've typed. For ease of reading, a lot of the parameter names seem to be shortened and nested like in your third image. However, there is a property called 'PositionTargetValue' that I can write to in the little test sim I made. Give this a try:

in = setBlockParameter(in,'chair_exp2/PJ_ground_rail','PositionTargetValue',0.2)

[Clayton Gotberg]

You are able to get a full list of all block parameters with the command

BlockParameterNames = fieldnames(get_param('<block path/name>','ObjectParameters'))
%                                                  ^
%                                  Insert your own block path/name here

[Yunhai Gao]

I see, thank so much for your help!

[Clayton Gotberg]

I'm glad I could help! Thank you for an interesting question.