Hi everyone
>> Could you explain the differences between methods 2 - 3 - 4 and their respective interest?
I'm not sure I can explain them without making you more confused, But, Let me try! :)
All the methods you've seen can be reproduced manually with moi commands.
Here is an explanation for each method:
Method 1:
It'll extract borders and isocurves of the input surface, then network them to make a new surface.
It works only on untrimmed surfaces. And it's useful when smoothing or trimming surface.
Method 2:
Extracts only the surface borders and network them to make a new surface.
It's a fast method. But the results can be inaccurate on complex surfaces.
Method 3:
It is very similar to "method 2"
Except that It'll run "method 1" on the surface created by "method 2". (Sounds like overdoing, but in some situations it'll be useful)
Control points are more uniform with this method.
Method 4:
It'll run the "flow" command on the isocurves created by "method 3", with the surface created by "method 2" as base and the input surface as target.
Then it'll network the "flowed" isocurves and borders of input surface to make a new surface.
When rebuilding a complex trimmed surface, this method is your best chance.
Methods 2 and 3 also can rebuild trimmed/untrimmed revolved surfaces.
In the attached file, you can see the difference between the 4 methods with similar settings on a relatively complex surface.
Some methods may look similar, But the control points and isocurves are different.
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