parameters: (self, index, linkid, lcl_pos, world_pos)
docstring: Add constraint such that at index of the trajectory, the robot link linkid's local position at world is world_pos
docstring_summary: Add constraint such that at index of the trajectory, the robot link linkid's local position at world is world_pos
docstring_tokens: Add constraint such that at index of the trajectory the robot link linkid s local position at world is world_pos
function: def add_position_constraint(self, index, linkid, lcl_pos, world_pos):
          """Add constraint such that at index of the trajectory, the robot link linkid's local position at world is world_pos"""
          self.constrs.add_eq(index, PositionConstraint(self.robot, linkid, lcl_pos, world_pos))
function_tokens: def add_position_constraint ( self , index , linkid , lcl_pos , world_pos ) : self . constrs . add_eq ( index , PositionConstraint ( self . robot , linkid , lcl_pos , world_pos ) )