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expose btMultiBodyConstraint applied impulse (force) on its degree of freedom(s),

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only tested for btMultiBodyJointMotor for now.
See also MultiBody/MultiBodyConstraintFeedback example
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=
2015-07-06 23:00:46 -07:00
parent 33b0d429ba
commit 3431773800
10 changed files with 50 additions and 11 deletions
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14
src/BulletDynamics/Featherstone/btMultiBodyConstraint.h
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@@ -58,6 +58,7 @@ protected:
btScalar m_maxAppliedImpulse;
// warning: the data block lay out is not consistent for all constraints
// data block laid out as follows:
// cached impulses. (one per row.)
// jacobians. (interleaved, row1 body1 then row1 body2 then row2 body 1 etc)
@@ -108,6 +109,19 @@ public:
return m_bodyB;
}
void internalSetAppliedImpulse(int dof, btScalar appliedImpulse)
{
btAssert(dof>=0);
btAssert(dof < getNumRows());
m_data[dof] = appliedImpulse;
}
btScalar getAppliedImpulse(int dof)
{
btAssert(dof>=0);
btAssert(dof < getNumRows());
return m_data[dof];
}
// current constraint position
// constraint is pos >= 0 for unilateral, or pos = 0 for bilateral
// NOTE: ignored position for friction rows.