Getting index of multidimensional array passed to mex function

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Kamran 2020-6-19

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https://ww2.mathworks.cn/matlabcentral/answers/551374-getting-index-of-multidimensional-array-passed-to-mex-function

评论： Kamran 2020-6-22

Hi,

I have an 4D array of size 31*229*374*80 (id, y, x, z) which I pass as input to a mex function. This is read as a 1D array in the mex function and is repoted as being a 229* 11594*80 (11594 = 31*374). I am confused about how to get the value of a given index in the function now. Suppose I want to get the value of array number 10 and inexes 50, 100, 40 in the 1D array in the mex function. How do I get to the correct address in the array ?

Thanks in advance,

Kamran

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James Tursa 2020-6-19

编辑：James Tursa 2020-6-19

Please give more details and show your code. All variables retain their sizes (dimensions) when passed into a mex routine. If you are seeing a different size then you are not coding properly, or the variable is not the size you think it is.

Kamran 2020-6-22