How to using slider bar to control joint?

Question

Yuttana Emyong 2021-3-3

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https://ww2.mathworks.cn/matlabcentral/answers/761651-how-to-using-slider-bar-to-control-joint

回答： Steve Miller 2021-6-7

Input sine wave, Boby move properly but when change to slider bar to control but body is not any move.

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Yifeng Tang 2021-4-29

I think it should work ... could you share a snaphost of using a slider bar in place of the sine wave?

The slider bar should be linked to a source, most likely a constant block. And you need to slow down the simulation, by pacing it, so you have time to move the slider.

Let me know how it works.

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Answer 1

Steve Miller 2021-6-7

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https://ww2.mathworks.cn/matlabcentral/answers/761651-how-to-using-slider-bar-to-control-joint#answer_719190

sm_four_bar_slider.slx

Hi Yuttana,

You can use a slider to control a joint. Attached to this answer is sm_four_bar_slider.slx where the crank angle is set by a slider dashboard block. The simulation pacing has been enabled and set to keep the simulation to roughly real time so that you can tune the slider interactively.

--Steve