put foot_pts into a try/catch block, not all robot models have feet
put foot_pts into a try/catch block, not all robot models have feet

edowson/director,mithrandir123/director,patmarion/director,RussTedrake/director,mithrandir123/director,rdeits/director,patmarion/director,RobotLocomotion/director,RussTedrake/director,edowson/director,openhumanoids/director,mithrandir123/director,empireryan/director,empireryan/director,manuelli/director,gizatt/director,edowson/director,manuelli/director,openhumanoids/director,mitdrc/director,gizatt/director,empireryan/director,gizatt/director,RobotLocomotion/director,manuelli/director,empireryan/director,patmarion/director,mitdrc/director,rdeits/director,manuelli/director,empireryan/director,patmarion/director,openhumanoids/director,mithrandir123/director,rdeits/director,openhumanoids/director,RussTedrake/director,mitdrc/director,mitdrc/director,mithrandir123/director,RobotLocomotion/director,manuelli/director,patmarion/director,openhumanoids/director,RussTedrake/director,RussTedrake/director,edowson/director,RobotLocomotion/director,gizatt/director,mitdrc/director,rdeits/director,RobotLocomotion/director,edowson/director,gizatt/director,rdeits/director