DesignScript Question

Hi,

In the screenshot, please have a look at the different results at the two red arrows.
Why is the first code block returning a value and the second codeblock returning null?
Both seem to be executing the same line of code?
Is there a mistake in the definition code block?

definition code underneath

def check (X,Y,T){
return = [Imperative]{
	if(T){
			if(Y>0){
			return = Math.Atan(X/Y)+180;
			}
			else{
			return = Math.Atan(X/Y);
			};
		}
	else {
			if(Y>0){
			return = Math.Atan(X/Y)+90;
			}
			else{
			return = Math.Atan(X/Y)-90;
			};

		}
  }
};

Hello Jnoordzij,

I’ve copied your code through and it appears to be working for me with a test case. Is this still failing for you?

image

1 Like

what version of Dynamo is this @jnoordzij - you’re likely hitting a bug that was fixed with namespaced functions in imperative blocks.
I believe it was fixed in 2.1

you can use a workaround like
func = math.Atan;
[imperative]

then inside the imperative block
use func instead of math.Atan.

4 Likes

Thanks guys. I’ll give that a try.
Using Dynamo 2.0.3 by the way.

1 Like

I think this might help:

1 Like

Hello guys,

I tried defining a function outside the imperative block, as you suggested. But I’m still getting None.
I will try upgrading to 2.1.

*Edit: I see that there exists no Dynamo Revit version newer to the 2.0.3 that I’m using now.
So I guess upgrading is not a real option.

What version of Dynamo are you using @solamour?

Does upgrading Dynamo Core to 2.1 also fix this issue for Dynamo Revit 2.0.3?
I tried upgrading to 2.1 but I ran into another issue, posted here, maybe you can help me with that?

@Michael_Kirschner2 maybe you can have a look as well?

I’m using Dynamo Sandbox 2.2.0.4667 right now. You can read more about how to get this on the blog: https://dynamobim.org/a-new-way-to-get-dynamo-sandbox/ :slight_smile:

Mike’s suggestion was as follows - embedding func inside the Definition, but outside of the Imperative section. This is a workaround to a bug that exists and is on our radar:

def check (X,Y,T){
func = Math.Atan;
return = [Imperative]{
	if(T){
			if(Y>0){
			return = func(X/Y)+180;
			}
			else{
			return = func(X/Y);
			};
		}
	else {
			if(Y>0){
			return = func(X/Y)+90;
			}
			else{
			return = func(X/Y)-90;
			};

		}
  }
};