How do I find the location of the closest point in a mesh?

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John Hart 2017-5-9

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https://ww2.mathworks.cn/matlabcentral/answers/339484-how-do-i-find-the-location-of-the-closest-point-in-a-mesh

评论： Stephen23 2017-5-11

I have a mesh with x,y and z data. I have a point of known reference that is within the coordinate range of the mesh, however it does not sit perfectly within it. I want to find the location of the closest point in the mesh to the reference point. I have found the minimum difference value in the x and y direction by using

GCP1xdiff=GCP1x-xi
GCP1xmin=min(abs(GCP1xdiff(ind,:)))

I now want to find the location of the nearest point within the mesh, I have tried something like

find(abs(min(GCP1x-xi))

But this does not work, any suggestions?

Many thanks!

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Stephen23 2017-5-11

Can you please clarify what _"the location of the nearest point within the mesh" is: do you want the nearest mesh intersection/node, or any point that lies along one of the x/y lines of the mesh?

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