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Subtracting two unknown values from each other

Forum|Forum|8 years ago
July 20, 2017
3 replies
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robbie_botha

Hello there,

I'm having a difficult time with subtracting two unknown measurements of line features with each other.

In short, I'm calculating the lengths of two overlaying features (lay1 and Lay2), and I want to check for all values that when subtracted from each other, is smaller than 5.

Everything is working perfectly, except where I'm stuck, is in a tester transformer where I added the following (seemingly incorrect) info in:

@Value(Lay1_Length)-@Value(Lay2-Length) > 5

Is there a different way I should create this expression?

Kind Regards,

Best answer by ebygomm

Make sure you are in the Arithmetic editor not the text editor. Your left value in the tester should look something like this

@Evaluate(@Value(lay1_length)-@Value(lay2_length))

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