Grasshopper

algorithmic modeling for Rhino

Hi,

I am trying to create parametric steps for a stair section.

1- How can create the poly line shown in the attachment with hand drawing?

2-How can I make it stay the same even the U V count of the point grid changes?

(I think there should be a path with x variable which is connected to the UV count slider, but I am kind a new in this so need help) 

Thank you

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This could be a way.

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Thank you very much. This is exactly what I need!

Just one more thing; I need just the opposite direction, I mean the opposite diagonal. 

I tried but couldn't make it. :/

Check attached.

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Thank you , thank you, thank you :)

I also found out this way; 

May be you want more simple way?

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Thank you Igor, but I need it to work with a specific point grid which is parametrically bonded with other components of the rest of the model. 

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