How to create a graph with X:Y coordinates and values and then find the shortest path?

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Vlad Bibikov 2021-5-14

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https://ww2.mathworks.cn/matlabcentral/answers/829538-how-to-create-a-graph-with-x-y-coordinates-and-values-and-then-find-the-shortest-path

评论： Chad Greene 2021-5-19

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I have array with X:Y coordinates(400k), and i have another array of values for each pair of X:Y. Then i plotted points on the map with their values(in attach). I need to create graph with these points and find the shortest path from one random point to another point. Are there any ways to solve this problem without using adjacency matrix? Or how can i get this matrix?

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Vlad Bibikov 2021-5-16

I have 416609x1 var for Y coordinate and i have 416609x1 var for Y coordinate. I plotted these points. Also i have 416609x1 var with values for each. Points colored according to their values. Min value 0, max 20. For example, points with 0 are blue on the map, red ones with 20. I need to find a shortest way from one point to other point on the map. I attached example of x,y and values arrays

Chad Greene 2021-5-19

There is some confusion because this looks like gridded data. It is unclear why you would want to find the shortest path between gridded data.

Regardless of whether or not the data are gridded, the text of your question suggests that you are talking about a traveling salesman problem. Google that phrase and you may be able to find the solution you're looking for. I know several solutions exist for it on the File Exchange.

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