How to generate random holes in a 2D surface?

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DINESH CHANDRA 2016-8-16

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https://ww2.mathworks.cn/matlabcentral/answers/299748-how-to-generate-random-holes-in-a-2d-surface

评论： DINESH CHANDRA 2016-8-16

1. Generation of a 2D surafce. 2. generation of random holes on 2D surface. 3. Extraction of co-ordinate of holes 4. Meshing of the 2D surface and extraction of node coordinates(if possible)

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Answer 1

KSSV 2016-8-16

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https://ww2.mathworks.cn/matlabcentral/answers/299748-how-to-generate-random-holes-in-a-2d-surface#answer_231886

for meshing you can refer following links:

http://in.mathworks.com/matlabcentral/fileexchange/34143-meshing-thin-shells-using-four-noded-elements

http://in.mathworks.com/matlabcentral/fileexchange/33731-meshing-a-plate-using-four-noded-elements

Coming about random holes....what shape the holes are in?

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DINESH CHANDRA 2016-8-16

Thanks for responding.......... Holes are in the shape of circles....

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Answer 2

Image Analyst 2016-8-16

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https://ww2.mathworks.cn/matlabcentral/answers/299748-how-to-generate-random-holes-in-a-2d-surface#answer_231895

在 MATLAB Online 中打开

Create your surface as a matrix. Then create a mask of a bunch of circles using rand() to get locations and/.or radii and the circle FAQ. Then zero out the areas in the surface like this:

yourSurface(circleMask) = 0;