Hello. When 2 curves don’t touch each other how to choose the proper curve to snap to during apparent intersection snap? [image] It highlights both curves, but when snapped it snaps to one of them, so how do I choose which curve it snaps to? So, for example, I could add a point on each curve at …

Hi Vano - [image] V@no: It highlights both curves, but when snapped it snaps to one of them, so how do I choose which curve it snaps to? When you minimize the viewport so that you also see the perspective viewport, you will see that the line that the mouse pointer is closest to is getting sn…

Oh, yes, I see it. Thanks! But it is so finicky, very “twitchy” especially when there are more than 2 lines involved (feels like moving 1px is enough to effect which line is snapping to) Perhaps holding a Shift key would “freeze” the intersection point, so cursor could move away and click on the n…

what exactly is your workflow to rely on ( imprecise ) apparent intersection ? if you struggle with multiple stacked objects, organize your drawing with more layers. kind regards -tom

I’m working with scans from a Proliner. So, most of the time scans have some sort of loop or C-shaped objects, often symmetric. When they are perfectly rotated in the world and looked from the side, it’s practically impossible to tell which line is what side as they overlap. And when I need add a po…

if you have a predefined hierarchy, and it is a repetitive, daily workflow a macro or script might help. with hierachy i mean: “i always need points on black curves, that apparently intersect with blue curves in top view” a small script can generate those points, and they can be snapped to via “p…

[image] V@no: It highlights both curves, but when snapped it snaps to one of them, so how do I choose which curve it snaps to? So, for example, I could add a point on each curve at that apparent intersection. My method for selecting an apparent intersection point on the desired curve: Cursor…

If it only highlights snapping line, how do we know which intersection it belong to? (in case of 3+ involved lines)

[image] V@no: If it only highlights snapping line, how do we know which intersection it belong to? (in case of 3+ involved lines) The snap will be on the highlighted line at the apparent intersection which is at or near the cursor position.

I understand that, but when there are several apparent intersections at very close proximity, how would we know which of other lines the intersection belongs to? Or am I overthinking it?

Hi Vano - [image] V@no: Or am I overthinking it? It sounds like it, yes. The change is in a public version of the WIP. Please use that version and let us know if the scene you are imagining is not behaving as expected. -wim

Choose curve at apparent intersection?

Rhino

brian (Brian Gillespie) March 11, 2026, 12:23am 8

RH-93733 is fixed in Rhino WIP

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Choose curve at apparent intersection?

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