Access class private data that is an array of clusters

[davidhi]

I have a class private data that has an array of clusters. I need to set the data in a class method. I tried to use the array bundle by name but that did not work. There is a step to access the array element that I must be missing. The class private data element is an array is Test, which is a cluster. 

This is a snippet from the block diagram. How do I access the Test cluster from the array? Any help appreciated. 

[Yamaeda]

It seems like you managed to set the data, now you need to get it back to the class, with Replace array subset and Bundle by name.

/Y

[davidhi]

I added 2 new VIs "VI for Data member access" to write and read the data. Still not able to write to the class member array cluster data. 

[Alexander_Sobolev · Accepted solution]

What do you have in write element of test.vi? 

It should be unbundle class, replace subset (make sure array has enough size, otherwise - build array), then bundle back into class.

Read is just unbundle - index array.

PS index better be blue to track rounding errors.

[billko]

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@Alexander_Sobolev wrote:

What do you have in write element of test.vi? 

It should be unbundle class, replace subset (make sure array has enough size, otherwise - build array), then bundle back into class.

Read is just unbundle - index array.

PS index better be blue to track rounding errors.

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Just to elaborate a bit here on Alex's sage advice:

It won't do to just add an explicit conversion or rounding function here.  Make sure that whatever is calculating this index makes the right integer choice when it comes to non-integer values.  (Which may, of course, turn out to be a simple rounding function - but then at least you've thought it through and decided it's okay to round.)