- position[direction] = _position[direction] - disp;
- if(position[direction] < 0 || position[direction] >=_dims[direction]) {
- if(_periodic[direction]) {
- position[direction] %=_dims[direction];
+ position[direction] = position_[direction] - disp;
+ if(position[direction] < 0 || position[direction] >=dims_[direction]) {
+ if(periodic_[direction]) {
+ position[direction] %=dims_[direction];