Move a point on a curve/copy a curve along the other curve

Rhino Rhino for Windows
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1

soru
soru1189×840 171 KB

Hi,
I really want to start the curve’s points(blue) from the green curve but ı can not move them exactly where ı want want. Are there any options?
Or are there any chances to copy the vertival curce along the horizontal one?

2

you can use the option intersection and near, activated in the lower bar “Object snaps”
image

3

Yes that helped. Thank you so much.