add comments

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Irlan 2018-04-06 16:32:19 -03:00
parent d657d649e3
commit 0395904079

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@ -198,9 +198,14 @@ public:
const b3Mat33& GetInertia() const; const b3Mat33& GetInertia() const;
// Get this body mass data. // Get this body mass data.
// However, the mass data returned by this function contains the mass of the body,
// the body local center of mass, and the rotational inertia about the body local center of mass.
void GetMassData(b3MassData* data) const; void GetMassData(b3MassData* data) const;
// Set this body mass data. // Set this body mass data.
// The supplied mass data must have the new mass of the body, local center of mass of the body,
// and rotational inertia of the body about the body origin. The last requirement must be fulfilled
// because the given inertia is shifted to the given local center of mass inside this function.
void SetMassData(const b3MassData* data); void SetMassData(const b3MassData* data);
// Recalculate this body mass data based on all of its shapes. // Recalculate this body mass data based on all of its shapes.