How can i generate random distributed bar objects

Question

muhammad ahmad 2018-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/425545-how-can-i-generate-random-distributed-bar-objects

回答： muhammad ahmad 2018-10-23

I need to generate some random bar objects to test my collision avoidance algorithm hoe can I do that?

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Answer 1

KSSV 2018-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/425545-how-can-i-generate-random-distributed-bar-objects#answer_342861

在 MATLAB Online 中打开

S = [0 0 ; 1 0 ; 1 1 ; 0 1]/4 ;
figure
hold on
N = 5 ;
for i = 1:N
    C = rand(1,2) ;  % center of sqaure 
    x = S(:,1)+C(1) ; 
    y = S(:,2)+C(2) ;
    patch(x,y,'r')
end

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muhammad ahmad 2018-10-23

I need to this kind of job with cubes as well how ca i do it

KSSV 2018-10-23

在 MATLAB Online 中打开

N = 5 ;
alpha=0.5;           % transparency (max=1=opaque)
X = [0 0 0 0 0 1; 1 0 1 1 1 1; 1 0 1 1 1 1; 0 0 0 0 0 1];
Y = [0 0 0 0 1 0; 0 1 0 0 1 1; 0 1 1 1 1 1; 0 0 1 1 1 0];
Z = [0 0 1 0 0 0; 0 0 1 0 0 0; 1 1 1 0 1 1; 1 1 1 0 1 1];
X = X/4 ; Y = Y/4 ; Z = Z/4 ;
figure
hold on
for i = 1:N
    C = rand(1,3) ;
    x = X + C(1);
    y = Y + C(2);
    z = Z + C(3);
      fill3(x,y,z,C,'FaceAlpha',alpha);    % draw cube
  end

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Answer 2

muhammad ahmad 2018-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/425545-how-can-i-generate-random-distributed-bar-objects#answer_342874

Thank you for your contribution one more thing can we extend these cubes in z axixs from 0 to different heights?

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KSSV 2018-10-23

在 MATLAB Online 中打开

N = 5 ;
alpha=0.5;           % transparency (max=1=opaque)
X = [0 0 0 0 0 1; 1 0 1 1 1 1; 1 0 1 1 1 1; 0 0 0 0 0 1];
Y = [0 0 0 0 1 0; 0 1 0 0 1 1; 0 1 1 1 1 1; 0 0 1 1 1 0];
Z = [0 0 1 0 0 0; 0 0 1 0 0 0; 1 1 1 0 1 1; 1 1 1 0 1 1];
X = X/4 ; Y = Y/4 ; Z = Z/4 ;
figure
hold on
for i = 1:N
    C = rand(1,3) ;
    x = X  ;
    y = Y  ;
    z = Z + i;
    fill3(x,y,z,C,'FaceAlpha',alpha);    % draw cube
end

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Answer 3

muhammad ahmad 2018-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/425545-how-can-i-generate-random-distributed-bar-objects#answer_342930

well this code is stacking cubes along z-axis but I didn't mean that I was asking about the extension of individual cube simply i just want to do the same work as scattere3(x,y,z) does and generate the random dots instead of dots i want to plot bars or cubes