Dynamically set array size

[jfcors]

Hi everybody!

I have an array of cluster (each cluster contains 4 values) and depending on user interactions, new clusters are added to the array. I'd like to implement a "Clear" button which deletes all the elements inside the array but I can't find a solution so far. The best I can do is to set all the cluster elements to 0 but the cluster itself is still in the array.

Does anybody know how to do that?

Many thanks,

Julien

[.aCe.]

I would assume delete array subset will do it.

Something like this:

[GerdW · Accepted solution]

Hi jfcors,

the cluster has to stay in the array as it defines the datatype of the array.

You also seem to mis-understand the term "empty array": an array is empty when there are no elements in it!

Snippet:

@aCe:

Your example only deletes one element in an array, but not the whole array! Sorry, it's correct...

[.aCe.]

@GerdW: It does delete everything.  See array length wired to the length input.

[jfcors]

Thanks a lot!

Indeed it wasn't clear. What I wanted is to remove all the elements of the array, except the first one so that the array type is still defined.

About your solution:  you show two ways to do it right? What are the names of the subvis you use? I couldn't find them in the Array palette.

Cheers,

Julien

[dan_u]

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@jfcors wrote:

Thanks a lot!

Indeed it wasn't clear. What I wanted is to remove all the elements of the array, except the first one so that the array type is still defined.

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The array type is also defined if the array is empty. No need to keep one element for that.

[GerdW]

Hi jfcors,

IndexArray, InitArray and ReshapeArray. All to be found on the Array functions palette...

And the picture is a snippet. You can download and put it in your block diagram.

There's a context help entry for snippets. Ever considered to read the help?

[jfcors]

Thanks for your help, it works perfectly.

I read the help all the time, but sometimes it is easier to ask for help directly.

Bests,

Julien