Rebuild or Refit

Rhino Rhino for Windows
1

Would you please help me locate the correct answer due to the clarity of these two commands on Rhino?

REBUILD: To increase or decrease control points on curves or objects and deploy smoothness, curviness and sharpness.

REFIT: To decrease control points on curves or objects without deploying Tolerance for the slightest changes.

The questionnaire:

To reduce control points on a curve;

  1. Refit

  2. Point

  3. Count

  4. Rebuild

2

Hi Shane - if the goal is to point-edit the curve with a manageable number of points, generally Rebuild. Refit will not necessarily - generally not - give you a curve that has nice paramaterization for editing.

-Pascal

3

Hello Pascal; Appreciate your reply. Therefore would you believe Rebuild is the appropriate answer?!

4

Are you taking a multiple choice test?

5

Yes, I’m taking a quiz…would you please help me with the answer, It’s so complicated!

6

Is one of the questions “Where should you ask when you don’t know the answer?”

-Pascal

1 Like
7

You’re absolutely right, much appreciated!

8

In case you want to learn something useful…

Another approach is to start single span curves or surfaces with 3(x3) points and then increase or decrease the degree. increasing the degree won‘t change the shape, while rebuild will almost always modify the shape. In many scenarios (especially in matching situations) the deviation created by rebuild is contra-productive. The problem with refit is that you have less control over the output. When you start with very few points and only slightly adjust the cp count/degree on demand , then this will always simplify everything. However this is rather a single-span modeling technique, which I primarily used in Icem Surf, rather than in Rhino. But its universal, and also works in Rhino

1 Like
9

Great. Thank you so much for the approach!