Help in exploding and selecting all parallel curves

I am new to use Grasshopper, and I did not find the answer on the forum, I hope anyone can help :slight_smile:

I have Multiple curves, and I want to explode all and group all the parallel ones . What should I do ?
Thanks in advance.

If by curve you mean line, you can extract vector
Unitize them, orient them and use sets to group them or group points (vector indeed)

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If they’re all in one plane (xy), the following will do it. (7.5 KB)

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