public btHingeConstraint createHingeConstraint( btRigidBody rbA, Matrix4 rbAFrame, boolean useReferenceFrameA) { long cPtr = ExtrasJNI.btWorldImporter_createHingeConstraint__SWIG_2( swigCPtr, this, btRigidBody.getCPtr(rbA), rbA, rbAFrame, useReferenceFrameA); return (cPtr == 0) ? null : new btHingeConstraint(cPtr, false); }