I’m working on a Grasshopper definition for positioning and orienting object on a spiral (helical) curve. The curve itself is nonplanar and 3D, and the object need to be placed at specific points along the curve. My goal is to have each object oriented in a “roadlike” orientation manner—aligned alon…

[ramp_2025Apr14a] ramp_2025Apr14a.gh (14.6 KB)

This method avoids the slider, though the result is very slightly different… :thinking: [ramp_2025Apr14b] ramp_2025Apr14b.gh (12.8 KB)

Thank you for all your help and insights @Joseph_Oster

By the way, you probably have good reasons for choosing these points (blue points below), but you could divide the ramp curve evenly (white points below). [ramp_2025Apr14d] [ramp_2025Apr14d2] ramp_2025Apr14d.gh (14.9 KB) P.S. Top views show good reasons for using the blue points, not the white …

Orienting object Along a 3D Helical Ramp

Grasshopper

Joseph_Oster April 14, 2025, 7:20pm 5

My pleasure. Thank you for observing the forum guidelines.

This simpler method using the start point of the ramp curve avoids the very slight difference.

ramp_2025Apr14c.gh (11.3 KB)

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Orienting object Along a 3D Helical Ramp

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