Difficult working with bezier curves... "inference" nightmare


#1

I installed the official bezier curve extension… and have been having some extreme difficult making it behave. It makes two-dimension curves beautifully, excellently, in fact.

The problem is that as soon as i try to make the curve three-dimensional… SU “infers” that i must want the point i am working with either snapped (excuse me, “inferred”) onto the planar surface of the axis behind it, or onto the reference image (a technical drawing) I am working off of.

This has just become sufficiently problematic that it has brought me to a dead halt with my current project, and has me positively seething with frustration. i wish i had spent money on this tool so i could demand it back, but, alas, all i can do is come here and gripe.

How do i make it stop this behavior? I wish only to move points in a two-dimensional plane without them jumping onto whatever happens to lie behind them.


#2

Generally when I want a 3D Bezier curve, I start with a box or other 3D shape to use as a guide for placing control points. I also use Fredo’s Bezier curve tool because the curve can be easily edited after placing it and additional control points can be added if needed.


#3

If I’m going to go through that much trouble, I’m better off dragging out my old student copy of Maya 8.

Seriously, though, why can i not use the arrow keys to constrain bezier handle movement to an axis like i can with literally everything else?


#4

If that’s too much trouble for you, maybe you should.

The plugin you are using just isn’t set up for that. Maybe ask the author.


#5

The author appears to be the sketchup team… short of buying a pro license, i can’t think of any better way to contact the sketchup team than the sketchup official forums…


#6

I just tried the SketchUp team extension. It’s good fun.

For making a curve that was not tied to any axis, and was changing in more than one axis at the same time, I made a couple of boxes that had corners where I wanted the curve to pass through. That made it very easy to get the curve in the right place.


#7

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