in this image the value of z is stroed in a variable called ‘Zrot’
after storing the rotation data in variable ,we can do the logic like this
And the question is? 
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Hello, Welcome to the Forums.
I’m also unsure what the problem/question is, but I do have a pro-tip that will protect you from banging your head against the keyboard trying to troubleshoot rotators/rotations.
It’s easier to think in terms of 1 to Zero (I’m looking directly at/away from something and all the area in between (use the ABS node to get rid of negative values))
In the screenshot, it’s based along the X axis (X==1) but you could change the “frame of reference” by feeding other vectors into the dot product.
Let us know if you have more info/questions!
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