使用最短路径算法计算配送路径表 - Dijkstra 算法示例
为了方便计算,我们可以将表 1 中的坐标转换为对应的编号,如下所示:
o(配送中心):0 a:1 b:2 c:3 d:4 e:5 f:6 g:7 h:8 i:9 j:10 k:11 l:12 m:13 n:14 p:15 q:16 r:17 s:18 t:19 u:20 v:21
接下来,我们使用 Dijkstra 算法计算最短路径表:
| 起点/终点 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |----------|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----| | 0 | 0.0 | 5.8 | 3.1 | 2.8 | 4.0 | 4.0 | 3.0 | 2.9 | 1.4 | 5.1 | 5.3 | 4.5 | 3.3 | 3.5 | 5.7 | 5.8 | 3.0 | 5.0 | 3.8 | 3.4 | 4.7 | 5.1 | | 1 | | 0.0 | 3.7 | 4.1 | 8.7 | 8.7 | 7.4 | 7.3 | 6.9 | 1.2 | 1.0 | 8.2 | 7.8 | 8.1 | 0.7 | 1.0 | 7.9 | 2.1 | 8.2 | 7.9 | 2.0 | 7.2 | | 2 | | | 0.0 | 3.4 | 7.0 | 7.1 | 4.8 | 4.6 | 4.3 | 2.9 | 3.3 | 7.5 | 5.2 | 5.6 | 3.1 | 2.8 | 6.1 | 3.6 | 6.8 | 5.4 | 1.8 | 6.5 | | 3 | | | | 0.0 | 4.5 | 4.5 | 5.4 | 5.3 | 4.2 | 3.9 | 3.3 | 4.5 | 5.1 | 5.3 | 4.3 | 4.4 | 4.8 | 3.0 | 4.2 | 5.2 | 3.8 | 3.5 | | 4 | | | | | 0.0 | 0.0 | 4.8 | 4.7 | 3.2 | 7.5 | 6.9 | 1.2 | 4.1 | 3.7 | 7.9 | 8.1 | 1.7 | 6.0 | 0.3 | 3.9 | 7.5 | 1.8 | | 5 | | | | | | 0.0 | 4.8 | 4.7 | 3.2 | 7.5 | 6.9 | 1.2 | 4.1 | 3.7 | 7.9 | 8.1 | 1.7 | 6.0 | 0.3 | 3.9 | 7.5 | 1.8 | | 6 | | | | | | | 0.0 | 0.6 | 2.0 | 6.7 | 7.2 | 5.9 | 0.84| 1.1 | 7.3 | 7.4 | 3.8 | 7.3 | 5.0 | 1.0 | 5.9 | 6.6 | | 7 | | | | | | | | 0.0 | 2.2 | 6.8 | 7.3 | 6.1 | 1.4 | 1.7 | 7.4 | 7.5 | 4.0 | 7.5 | 5.2 | 1.5 | 6.1 | 6.8 | | 8 | | | | | | | | | 0.0 | 5.9 | 6.3 | 5.1 | 2.0 | 2.3 | 6.5 | 6.5 | 2.9 | 6.5 | 4.2 | 2.1 | 5.1 | 5.7 | | 9 | | | | | | | | | | 0.71| 0.71| 7.2 | 7.1 | 7.3 | 1.4 | 1.5 | 6.8 | 1.2 | 7.1 | 7.2 | 1.5 | 6.3 | | 10 | | | | | | | | | | | 0.0 | 7.0 | 7.5 | 7.6 | 1.4 | 1.6 | 7.2 | 0.9 | 6.8 | 7.6 | 1.9 | 6.0 | | 11 | | | | | | | | | | | | 0.0 | 4.7 | 4.3 | 8.0 | 8.1 | 2.2 | 6.1 | 0.6 | 4.5 | 7.4 | 1.3 | | 12 | | | | | | | | | | | | | 0.0 | 0.3 | 7.8 | 7.8 | 3.2 | 7.2 | 4.4 | 0.1 | 6.4 | 6.1 | | 13 | | | | | | | | | | | | | | 0.0 | 7.8 | 7.9 | 3.2 | 7.3 | 4.5 | 0.2 | 6.4 | 6.2 |
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