Noob question about recursion and refresh in GH

Hello everyone

I have a noobinsh question about recursion in GH - C# component

If I declare a list inside the C# component of say values like int or Point3d or whatever How can I update the contents of that list recursively on each refresh of the definition (with a timer or manually with F5) and avoid clearing the list by re-declaring it anew with

List<int> myList = new List<int>(); ??

I have a bool toggle and two if branches inside the component the first for clearing the list (reset) and the second for doing some operations on the list like doubling the values on every refresh.

I would like to resolve this internally inside the component (so no hoopsnake) if possible without needing to write data to the disk

I attached the .gh file with a simple def illustrating my question. There are no errors but once the list is initialized on the first branch the values inside are cleared and list voided when the component is refreshed for use of the data inside the second if branch.

I want to use this approach to be able to control and visualize the updated solution in the viewport (of course using actual geometry not ints :))

Any help would be appreciated.

Thanks

Attachments:

noob-c#.gh, 1 KB

Replies to This Discussion

Permalink Reply by michael sprinzl on February 14, 2013 at 4:52am

you can define a static field. And attach a timer to the script... so it will count und reset when bool false

define a field in //<Custom additional code> ....

public static int counter = -1;

and in your runscript to this....

private void RunScript(bool start, List<object> x, ref object A)
{
    if(counter != -1)
    {
      A = counter;
      counter++;
    }
    if(start == false){counter = -1;}
    if(start == true && counter == -1){counter = 0;}
}

hope this helps

Permalink Reply by David Stasiuk on February 14, 2013 at 5:04am

Hey Andrei-

I've just started getting into timers myself...the key is to declare the variables you'd like to keep persistent outside of the scope of the sub, in the additional code area. Then also you don't need to call any additional loops...the timer simply re-executes the script.

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