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How to fill a 3D logical matrix by a series of point coordinates?

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Mohammad 2019-5-27

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评论： Mohammad 2019-5-27

I am trying to develop an algorithm inwhich I need to demonstrate a 3D area by a logical matrix (1 inside a surface, 0 outside). I have a surface shown as a series of points which are floating point coordinates. How can I fill in a shape inside a logical 3D matrix annotated by this surface?

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KSSV 2019-5-27

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Multiple ways:

Use inpolygon, get indices, fill the logicals.
Use ineqalities and get logicals straight away.

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Mohammad 2019-5-27

编辑：Mohammad 2019-5-27

can you elucidate your answer by a few lines of code?

Mohammad 2019-5-27

I have a 3d array of floating positions. How can I fill by logical operations while positions are not inside a single layer?!

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