Creatng Array code using randperm function I’ve created the Array code using randperm function. I would like to improve some part. My question is how to add the additional conditions? There are 1000 elements (x=10 elements, y=10 elements, z=10 elements / cubic shape) I assigned that the 20% of elements are ‘2’ (Material number) I assigned that the 80% of elements are ‘1’ (Material number) Each position is the center of the elements When the position of x = 4~7, y=4~7 and z=7 (holes), the material number is ‘3’. The 20% of elements except for the holes is ‘2’ (Material number) The 80% of elements except for the holes is ‘1’ (Material number) clc; clear; close all n = 1000; p = randperm(n); array = zeros(n,1); Vf = 0.2; Num = Vf*n; %% Input Xlength = 0.5; Ylength = 0.5; Zlength = 0.5; XNum = 10; YNum = 10; ZNum = 10; Xmin = -0*Xlength/2; Ymin = -1*Ylength/2; Zmin = -1*Zlength/2; X = -0.25; Y = -0.25; Z = -0.25; for i=1:XNum Xnew = X+Xlength; X = Xnew; Xoriginal(i) = X; end for i=1:YNum Ynew = Y+Ylength; Y = Ynew; Yoriginal(i) = Y; end for i=1:ZNum Znew = Z+Zlength; Z = Znew; Zoriginal(i) = Z; end for i = 1:Num array(p(i)) = 10e9; end [X,Y,Z] = meshgrid(Xoriginal,Yoriginal,Zoriginal); X = X(:); Y = Y(:); Z = Z(:); POS = [X Y Z array]; SzPOS = size(POS);

Creatng Array code using randperm function

Jonghyun Kim

2022 9 22

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Creatng Array code using randperm function

I’ve created the Array code using randperm function.

I would like to improve some part.

My question is how to add the additional conditions?

There are 1000 elements (x=10 elements, y=10 elements, z=10 elements / cubic shape)
I assigned that the 20% of elements are ‘2’ (Material number)
I assigned that the 80% of elements are ‘1’ (Material number)
Each position is the center of the elements

<array>

When the position of x = 4~7, y=4~7 and z=7 (holes), the material number is ‘3’.
The 20% of elements except for the holes is ‘2’ (Material number)
The 80% of elements except for the holes is ‘1’ (Material number)

clc; clear; close all 
n = 1000; p = randperm(n); array = zeros(n,1);
Vf = 0.2;
Num = Vf*n;
%% Input
Xlength = 0.5;
Ylength = 0.5;
Zlength = 0.5;
XNum = 10;
YNum = 10;
ZNum = 10;
Xmin = -0*Xlength/2;
Ymin = -1*Ylength/2;
Zmin = -1*Zlength/2;
X = -0.25; Y = -0.25; Z = -0.25;
for i=1:XNum   
    Xnew = X+Xlength;
    X = Xnew;
    Xoriginal(i) = X;
end
for i=1:YNum   
    Ynew = Y+Ylength;
    Y = Ynew;
    Yoriginal(i) = Y;
end
for i=1:ZNum   
    Znew = Z+Zlength;
    Z = Znew;
    Zoriginal(i) = Z;
end
for i = 1:Num
    array(p(i)) = 10e9;    
end
[X,Y,Z] = meshgrid(Xoriginal,Yoriginal,Zoriginal);
X = X(:);
Y = Y(:);
Z = Z(:);
POS = [X Y Z array];
SzPOS = size(POS);