How can I use a cube as the boundaries for a line ?

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Jonathan Salazar 2017-8-31

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https://ww2.mathworks.cn/matlabcentral/answers/354676-how-can-i-use-a-cube-as-the-boundaries-for-a-line

回答： KSSV 2017-8-31

I have x,y and z extremes which i need to use to create a box (xlo,xhi,ylo,yhi,zlo,zhi). I need to then draw a random line inside the box and figure out the length of this line. I was thinking about manually creating the equations for the planes describing the box and finding out when they intersect with the line but I am not entirely sure how to accomplish this on matlab. Thank you!

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Answer 1

KSSV 2017-8-31

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https://ww2.mathworks.cn/matlabcentral/answers/354676-how-can-i-use-a-cube-as-the-boundaries-for-a-line#answer_279791

在 MATLAB Online 中打开

To get (xlo,xhi,ylo,yhi,zlo,zhi):

[min(x) max(x) min(y) max(y) min(z) max(z)] ;

As you have (x,y,z) data, select any two points in random and plot line. You may select random point using randsample or randperm. Once you get two points, you can get length using norm. Or by calculating the distance between them.