Closest coordinate points between 2 data sets

2 visualizaciones (últimos 30 días)
ha ha
ha ha el 24 de Feb. de 2019
Editada: ha ha el 24 de Feb. de 2019
Let's say: I have 2 dataset containning 3d points:
A=[1 1 1;1.5 1 1;2 1 1;2.5 1 1;3 1 1;1 2 1;3 2 1;1 3 1;1.5 3 1;2 3 1;2.5 3 1;3 3 1;1 1.5 1;1 2.5 1;3 1.5 1;3 2.5 1];
B=[2 1.1 1; 2 1.5 1;2 2 1; 2 2.5 1;2 2.9 1];%matrix contain 5 red points
How can we find the point belong to matrix B, that having the smallest distance to any point belong to matrix A?

Respuesta aceptada

ha ha
ha ha el 24 de Feb. de 2019
clear;clc;
A=[1 1 1;1.5 1 1;2 1 1;2.5 1 1;3 1 1;1 2 1;3 2 1;1 3 1;1.5 3 1;2 3 1;2.5 3 1;3 3 1;1 1.5 1;1 2.5 1;3 1.5 1;3 2.5 1];
B=[2 1.1 1; 2 1.5 1;2 2 1; 2 2.5 1;2 2.9 1];
scatter3(A(:,1),A(:,2),A(:,3),51,'k.');
hold on;scatter3(B(:,1),B(:,2),B(:,3),91,'r.');
xlim([0 5]) ;ylim([0 5]);
%%
distances = pdist2(A(:, 1:2), B(:, 1:2));%calculate the distance between 2 datasets
minDistance = min(distances(:));%find the minimum value of distance
[rowOfA, rowOfB] = find(distances == minDistance);
B_coord_closest=B(rowOfB,:);%the point belong to B having the nearest distance to dataset A
hold on;scatter3(B_coord_closest(:,1),B_coord_closest(:,2),B_coord_closest(:,3),'*');
legend('dataset A','dataset B','the result point');
2.JPG
3.png

Más respuestas (0)

Categorías

Más información sobre Assembly en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by