Small architecture surface

this surface was made by voronoi3D,but it could not to adjust size ,so l want to make a random polyline and adjustable that what methods can i try?every thanks!

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your question is not very clear. Please read that, it will help you to better formulate your question.

For Voronoi things there are many many scripts tutorials available on internet. Did you look at them ? Try to come back with a script and a drawing of what you want.