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Measure pressure when using MouseJoint

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josemarin2

Post subject: Measure pressure when using MouseJoint

Posted: Thu Jul 12, 2012 7:26 am

Joined: Fri May 02, 2008 6:23 am
Posts: 28

Hi!

When using the MouseJoint, I must measure the pressure from body A (being dragged by the joint) to body B.

Is this possible?

Thanks.

Jose

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irresistible force

Post subject: Re: Measure pressure when using MouseJoint

Posted: Thu Jul 12, 2012 7:50 am

Joined: Tue Jun 24, 2008 8:25 pm
Posts: 1515
Location: Tokyo

I have never tried them myself, but the mouse joint has these functions which look like they would be useful:

Code:

b2Vec2 GetReactionForce(float32 inv_dt) const;
float32 GetReactionTorque(float32 inv_dt) const;

I think the inv_dt value should be the inverse of your time step length, eg. if you are running the simulation at 60fps, inv_dt would be 60.

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josemarin2

Post subject: Re: Measure pressure when using MouseJoint

Posted: Wed Aug 08, 2012 12:26 pm

Joined: Fri May 02, 2008 6:23 am
Posts: 28

I will check that, thanks!

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