Hello,

I'm trying to manually reassemble the Rhino MatchSrf command in MOI. So far, I got this, by placing construction lines. First point close to edge, using on surface snap, next on edge, using perpendicular snap. Then I placed the first few points along construction line, starting from edge. Finally I used the network command.
But it seems this is only close to enough. By looking at blends created by MOI, I think the direction used for blend, is something like cross- product of surface normal at edge, and edge tangent. Method I've used actually does not 'guarantee' this cross - product, especially not on some very curved surface.
So question is, is there a way to place the construction line in the same direction, as one used for first (or last) two points for blend. Possibly in one session. I'd be also interested, is there another way to get something 'matchsrf' alike.

thanks

Hi anto, it's pretty difficult to replicate MatchSrf in this kind of manual way.

It tends to be easier to use Blend to do the whole job of generating the in between surface, I guess I'm not sure right now why you don't want to do it that way?

I guess the easiest way to get the same thing that Blend would do would be to make a blend and look at the blend surface's control points and snap on to those points if needed. If you need to get the shape at a particular spot use Construct > Curve > Iso to extract an isoparm of the blend surface at a particular spot and then look at that curve's control points.

- Michael

Or also it kind of seems like you may save a lot of work in your particular case here by just taking that into Rhino and using MatchSrf over there...

- Michael