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Topic: comp.geometry
Replies: 2   Last Post: Nov 21, 2012 10:31 AM

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 Posts: 822 Registered: 9/1/10
Re: comp.geometry
Posted: Nov 21, 2012 10:31 AM

fillmapfunction>,On Nov 21, 7:29 am, Musatov <marty.musa...@gmail.com>
wrote:
> ---------- Forwarded message ----------
> From: Martin Musatov <marty.musa...@gmail.com>
> Date: Nov 12, 1:39 am
> Subject: Fiuna function A * (start, goal) closedset:. = the empty
>
> set / / The set of nodes already evaluated openset: = {start} / / The
> set of tentative nodes to be evaluated, initially containing the start
> node came_from: = the empty . map / / The map o
> To: comp.theory
>
>   function A * (start, goal) closedset:. = the empty set / / The set
> of nodes already evaluated openset: = {start} / / The set of tentative
> nodes to be evaluated, initially containing the start node came_from:
> = the empty . map / / The map of navigated nodes g_score [start]:.. =
> 0 / / Cost from start along best known path / / Estimated total cost
> from start to goal through y f_score [start]: = g_score [start] +
> heuristic_cost_estimate (start, goal) while openset is not empty
> current: = the node in openset having the lowest f_score [] value if
> current = goal return reconstruct_path (came_from, goal) remove
> current from openset add current to closedset for each neighbor in
> neighbor_nodes (current ) if neighbor in closedset continue
> tentative_g_score: = g_score [current] + dist_between (current,
> neighbor) if neighbor not in openset or tentative_g_score <g_score
> [neighbor] add neighbor to openset came_from [neighbor]: = current
> g_score [neighbor]: = tentative_g_score f_score [neighbor]: = g_score
> [neighbor] + heuristic_cost_estimate (neighbor, goal) return failure
> function reconstruct_path (came_from, current_node) if came_from
> [current_node] is set p: = reconstruct_path (came_from, came_from
> [current_node]) return (p + current_node ) else return current_nodeOn
> Nov 21, 7:22 am, Musatov <marty.musa...@gmail.com> wrote:

> > If there is such a keyhttp://farm9.staticflickr.com/8070/8205189861_8e7dc01a47_b.jpg
>
> import function fns -k
> ket-t
> y
> ret

+a-2a

Date Subject Author
11/21/12
11/21/12
11/21/12