Nom
A pointer in a hierarchical data structure that points to the node that is down from the current node.
- Exemples
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Except at level zero, the downpointer always points down.
[…] this data structure differs from the tree […] illustrated in Fig. 1, only by having downpointers replaced by downtrees.
Plus d’exemples (1)
By using the so-called functional approach to data structures Chazelle [1988] developed a compression scheme to encode the downpointers used by Willard [1985] to reduce further the space requirement.
An indicator that points toward the ground.
- Exemples
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Plus d’exemples (1)
During one session , the subject used a canopy-mounted downpointer to estimate position in space relative to the ground, and in the other session the subject used a joystick-controlled, inside-out, aircraft attitude indicator.