Hello all,

I'm using toArray to move data from a TreeSet to an array for ease of access in building an interface. When I use toArray in the function which uses the array theres no bother, i.e.

1. void someFunction(){
2.       Float myArray[] = new Float[mySet.size()];
3.       myArray = (Float[]) mySet.toArray(myArray);
4.      
   
5.       // Can access individual elements of the array easily.
   
6.       println(myArray[3]);
7. }

However, I think I'll be utilising the array in other places within the code, so I thought I could move the toArray code to setup(), however, when I do this, for some reason other functions can't see the Array i.e.

1. void setup() {
2.       Float myArray[] = new Float[mySet.size()];
3.       myArray = (Float[]) mySet.toArray(myArray);
4. }
5.      
   
6. void someFunction() {
7.       // This will throw an error, couldn't find anything named myArray
   
8.       println(myArray[3]);
9. }

I'm new to processing beyond the basics, but I'm intregued as to why this happens? I had a look at the docs for toArray and saw this:
    

The returned array will be "safe" in that no references to it are maintained by this collection 

And wondered if this is related to my problem?

Thanks in advance.