Hallo Michael, is it possible to make isocurves to work on several faces simultaneously and follow one cuvrve?
For example I select faces than run script and and select place where to put isocurves.
Check the pic:

I would love to see such a tool, like a loop cut tool :)

Hi Andrei,

> Hallo Michael, is it possible to make isocurves to work on
> several faces simultaneously and follow one cuvrve?

It's difficult because there is no guarantee on any arbitrary joined set of surfaces that isocurves from each adjacent surface will make a closed loop like that. The U/V directions of each surface at joined edges are not necessarily aligned to one another.

What you show there looks like a planar section cut which you can do currently by drawing a line and using Construct > Curve > Project. Select the line, run Construct > Curve > Project, and then select your solid as the target object and you should get a result like that.

- Michael

Here's a kind of simple example, see the attached 3DM file. Generate an isocurve along the plane like this:



If you now generate an isocurve on the sphere at that same ending location, you'll get a result like this:




The plane isocurve follows the UV structure of the plane, the sphere isocurve follows the UV structure of the sphere, each of those surfaces has a fairly different control point grid structure to it, and so their isocurves do not follow a total straight path when done segment-by-segment like that.

If you want something that follows a straight cut path across surfaces, that's going to be a planar intersection curve which is a different type of generation process than an isocurve. You can get a planar intersection result by projecting a line onto the object though.

- Michael

Yes I know about project, but sometimems it produces a lot of points.