- init();
- dimension_ = d.dimension_;
-
- offset_ = d.offset_;
- offset_callbacks_ = d.offset_callbacks_;
- offsets_left_ = d.offsets_left_;
- parent_l_ = d.parent_l_;
+ init ();
+ offset_ = d.offset_ ? new Real (*d.offset_) : 0;
+ parent_ = d.parent_;
+ extent_ = d.extent_ ? new Interval (*d.extent_) : 0;