Hi,
I am converting an open brep into a surface.
Extracted contours and points.
So far so good. My loft is looking very strange.
I need it to be mapped with a geometry.
I also tried surface from points and networked surface with no success.
Any hints?
Best regards,
SFS
1809_brep-surface.gh (22.4 KB)
1809_brep-surface.3dm (93.5 KB)
Baking the GH-curves and then lofting in Rhino makes a perfect shape.
In GH the curves are unsorted, the loft jumps from the 5th to 3rd… How do I make GH understand which curve is the first one?
You can avoid generating a polysurface frSweep1 by using Fit Curve.
hi,
First off, It is best to internalize your geometry so as not to have to post both .3dm and .gh file (have a read at this, it’s going to be very useful)
What I think the problem is, is that the result of your loft is not a surface as you might think. (if during a loft it is difficult to connect a series of curves, Grasshopper creates a brep -so as to give you something- but it is essentially a mesh and doesn’t have the properties of a surface.)
In the following definition I realigned the ‘ribs’ using orient and the result is indeed a surface.
surface.gh (19.3 KB)
EDIT:
Sorry, I missed the scaling part (I always miss something 
)
surface.gh (20.8 KB)
Fit Curve is the under appreciated hero of Grasshopper to be honest 
Awesome!
FitCurve is great, I haven’t used that component so often.
It solves everything!
Thanks for the fast reply HS_Kim.
This example is very useful for working with geometry that was created in other software!
Best regards,
SFS
Hi anikolo,
of course I know internlalize data. In this case it’s about getting geometry from the outside, so I use it for tests and import Iges-files.
Great solution, thanks!
The one you did is a different setup, which is also very nice.
I want to focus on imported geometry here though, but I could extract a central curve and do what you suggest, since it is very clean and nice. But the geometry can be assymetrical too, which makes everyhing different I assume. Gonna run some tests…
Thanks!
Best regards,
SFS
@Michael_Pryor you can add in Pufferfish a fit curve component with an angle input.
https://developer.rhino3d.com/api/RhinoCommon/html/M_Rhino_Geometry_Curve_Fit.htm
Sure I can toss it in. I have also a cool one in the next version that fits only certain segments of curves based on the degree you specify.
