January 16, 2019, 8:20am
I have gernerated tweened curves and positioned a profile on each curve which I would like to sweep along each curve.
Now I need some help:
I have 2 sections on each cuves, but I need just one.
When I use sweep, I generates a big mess of surfaces, because each profile i beeing used on each tween curve to sweep.
As I introduced, I would like to sweep each profile on its own curve. How can I set up grasshopper to do so?
I guess that’s an easy one, but I just do not know and would like to learn.
Thanks in advance!
TweenSweepEach_001.gh (9.4 KB)
January 16, 2019, 9:33am
Thanks you, but which curves? I tried out and internalized different components, but I always get multiple sweeps for each tweend curves
January 17, 2019, 7:11am
Can somebody help how to sweep each profile on its curves just once - I still dont get it
If you don’t internalise your curves we can’t see what’s happening in your file.
Have a look at this:
Asking questions and getting answers is what this forum is all about. Although people are generally very helpful, there are things you can do to improve your chances of getting good and quick answers. Below you will find some suggestions, but don’t think of them as rules and especially don’t think of them as guarantees.
1. Choose a descriptive title for your post
Don’t title your question Help! or I have a problem or Deadline tonight!, but actually describe the problem you are having.
2. Be s…
January 17, 2019, 7:24am
Well the the picture above is what happens when I do this.
This problem might be as well: I do not know exaclty where to internalize the curves. There are multiple possiblities.
January 17, 2019, 7:38am
When I internalize the curves, the connection gets lost and the result is static.
Yes that is correct. It makes it a lot easier for us to help if we have access to your rhino geometry. You can always re reference to fix the connection.
January 17, 2019, 1:14pm
Thanks for your answer - attached the gh and 3dm file.
TweenSweepEach_002.gh (69.8 KB)
CurvesToTweenAndSweep_001.3dm (211.9 KB)
January 17, 2019, 1:19pm
When I change the Sweep1 command to extrude along - it basically works. Every single section is extruded on its local curve. Unfortunately the profil is no 90° to the curve all the time.
January 17, 2019, 10:36pm
To get the sweep to work for each curve, you need to graft both inputs as below
Since the Sweep1 component will sweep a list of profiles along each curve, grafting will ensure only the first profile curve is swept alone the first rail curve, and the second along the second etc. the need to do this makes more sense when you consider this example:
January 18, 2019, 7:54am
Thank you very much - very helpful!
The other, more complex example is also nice to learn from - cool.
One small problem occurs all the time - even when I load your files: The first profile on the first rail is often rotated by 90°. How can I solve this? Sometimes I think it is related to the shape of the curves itself. All curves are the same Z-Plane, just XY-Curvature.
January 18, 2019, 7:59am
I rebuilt the curve with the same degree and count - worked. Coincidence ?
… well yes, depending on how I rebuild it, the profile starts to rotate to 90° or 180°. But why…