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[Graph Drawing] Route DL : 0: 实现 dijksta图形最短路径并且保存图形-dijksta graphics achieve the shortest path is well preserved graphics
Date : 2025-07-13 Size : 62kb User : JJCH
[Data structs] DIJKSTRA DL : 0: Suppose you want to find the shortest path between two intersections on a map, a starting point and a destination. To accomplish this, you could highlight the streets (tracing the streets with a marker) in a certain order, until you have a route highlighted from the starting point to the destination. The order is conceptually simple: at each iteration, create a set of intersections consisting of every unmarked intersection that is directly connected to a marked intersection, this will be your set of considered intersections. From that set of considered intersections, find the closest intersection to the destination (this is the "greedy" part, as described above) and highlight it and mark that street to that intersection, draw an arrow with the direction, then repeat. In each stage mark just one new intersection. When you get to the destination, follow the arrows backwards. There will be only one path back against the arrows, the shortest one.
Date : 2025-07-13 Size : 1kb User : synthia
[matlab] dijikstra DL : 0: For a given source vertex (node) in the graph, the algorithm finds the path with lowest cost (i.e. the shortest path) between that vertex and every other vertex. It can also be used for finding costs of shortest paths from a single vertex to a single destination vertex by stopping the algorithm once the shortest path to the destination vertex has been determined. For example, if the vertices of the graph represent cities and edge path costs represent driving distances between pairs of cities connected by a direct road, Dijkstra s algorithm can be used to find the shortest route between one city and all other cities. As a result, the shortest path first is widely used in network routing protocols, most notably IS-IS and OSPF (Open Shortest Path First).-For a given source vertex (node) in the graph, the algorithm finds the path with lowest cost (i.e. the shortest path) between that vertex and every other vertex. It can also be used for finding costs of shortest paths from a single vertex to a single destination vertex by stopping the algorithm once the shortest path to the destination vertex has been determined. For example, if the vertices of the graph represent cities and edge path costs represent driving distances between pairs of cities connected by a direct road, Dijkstra s algorithm can be used to find the shortest route between one city and all other cities. As a result, the shortest path first is widely used in network routing protocols, most notably IS-IS and OSPF (Open Shortest Path First).
Date : 2025-07-13 Size : 1kb User : yashika
[Algorithm] SPF DL : 1: Dijkstra s algorithm, named after its discoverer, Dutch computer scientist Edsger Dijkstra, is a greedy algorithm that solves the single-source shortest path problem for a directed graph with non negative edge weights. For example, if the vertices (nodes) of the graph represent cities and edge weights represent driving distances between pairs of cities connected by a direct road, Dijkstra s algorithm can be used to find the shortest route between two cities. Also, this algorithm can be used for shortest path to destination in traffic network.
Date : 2025-07-13 Size : 9kb User : williamsu82