Getting the minimum distance in a coordinates array

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Sabato De Gregorio
回答： Paolo 2018-6-9
Let's say I have this array of coordinates (values are (x,y)):
centers =
938 845
810 1012
147 875
1162 810
494 1039
383 897
203 1010
I need to pick 2 coordinates with the lowest difference on the X-axis (first column) because I need 2 points that are as closest as possible to each other. How can I do it?

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回答（1 个）

Paolo
Paolo 2018-6-9
Your input:
x = [938;810;147;1162;494;383;203];
y = [845;1012;875;810;1039;897;1010];
Sort x:
[tmpx,i] = sort(x);
%Order y according to sorting index for x.
tmpy = y(i);
Your two points are:
P1 = [tmpx(1),tmpy(1)]
P2 = [tmpx(2),tmpy(2)]
Output:
P1 = 147 875
P2 = 203 1010

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