How to fit the grid to a mesh with voids?

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Ceren GURKAN 2014-7-19

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编辑： Neha Talnikar 2014-7-23

Hello everybody,

I have a mesh that includes some voids in. I would like to create a grid to represent that mesh but when I use mesh grid with X and Y coordinates given; the grid created goes through the voids as well :( Any ideas how to create a grid that fits to my mesh and leave blank the voids I have in the original mesh??

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Answer 1

Neha Talnikar 2014-7-23

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编辑：Neha Talnikar 2014-7-23

When working with “meshgrid” or “griddata”, it is required that it is a full grid. Any voids would have to be replaced by a NaN.

You could use “scatteredInterpolant” class for your question and replace the voids with a value, example, NaN. The interpolation method depends on the problem you are trying to solve and you can set properties of the class object to achieve this.

Documentation for scatteredInterpolant: http://www.mathworks.com/help/matlab/ref/scatteredinterpolant-class.html

You can look at the Replacement of Sample Values in the examples section of the documentation for help on replacing values.