Hi guys,

Im struggle to do a sweep. Its extremly easy but something is going horribly wrong! Its so annoying.. .please help.
Here are the attachments. So insted of having ONE sweep I'm getting TWO. and in a wrong way..

Im sure that points are correct and welded why this is happening?

Adam

Im ataching moi file too
THANK YOU for the help




???

moi file
attached

You have an abrupt bend! Not natural!

And if you ask Show points you will see that are some many!

So select your curv, Press TAB and Type rebuild and choose 12 points

For this sort of thing better use 2 rails and put some other profils along start and end bend!

And incease the scale it's not very good to draw in so little size of thing! :)

So i redraw your curve, Scale 100

Only few control points and "rounder" your abrupt angle curve!

As it's painful to draw circles along the curve with a good orientation better to make

only one circle out of the curve (no need to place it on the curve - must be out of the "box" of the curve for the automatic sweep!

But as you can see your original angle is always not too natural even rounded ! There is always a sort of folding! (second is better - more fluent)

Ahh!! Thank you so much it was so frustrating :( !!! KUDOS! Now its perfect! cheeers

Hi Adam, it sounds like Pilou has it all worked out for you but just to make sure you know the reason for the initial result, that was because of having a sharp corner in your sweep path.

At sharp corners the sweep segments on either side of the corner will be extended and intersected with each other to make a mitered corner. But if your path is swooping around in 3D rather than planar it is not always possible for them to be intersected so you will get the extended parts in that case.

- Michael

Hey Michael,

Thanks that's a better explanation! Is there any option to convert a sharp corners into soft?

cheers

Hi Adam,

> Is there any option to convert a sharp corners into soft?

There are a few different ways, which one is best kind of depends on the structure of your curves.

If you've drawn the curve with control points you can turn on edit points and delete the sharp control point.

If the curves have dense control points like they were a result of an intersection or something, then you might try trimming away some space between them and using Construct > Blend to put in a blend curve between them.

If your curve is planar you can use Construct > Fillet to round off corners.

- Michael

<< Thanks that's a better explanation!
Sure! :)

yeah I get that thanks.

I was thinking about something more sophisticated (sorry) :) like bezier curves with nodes? as we do have in the 2d software like illustrator and so on. I think that also 3dsmax use 3d beziers with nodes.

I'm asking because im just curious its not a feature request :) or anything like that

Hi Adam, currently there isn't any way to switch a corner point into a smooth point but it is something I want to add in.

Right now you can delete the corner point and add in a new smooth point if you want though.

Looking at your sweep.3dm file, changing the node type would probably not be suitable for your particular case as-is because one of the curves has dense control points. Switching a point type could make it smooth but there would be a really tight bend in a small area.

- Michael

Hey Micheal,

Thanks! Yes now I understand how it works. Mucho Kudos for that. And now I want more :) hehe. yes conversion would be great. You could also add a double click option. I will provide a mock-up :)
So the idea is: when I double click on the curve it goes automatically into - point edit mode -> show points - I can then select, move points and now if I double click on the point again it will convert it automatically into smooth or corner. When you double click again outisde the curve it will deselect it and hide your points - Sleek :D
This proved to be the fastest way to edit points software like Sketch-app and others use that recently. As I can see you don’t use a double click on the target right now.
Adam

Hi Adam, switching between a sharp vs smooth point isn't really something that needs to be done very frequently so it would not be a good target to try and optimize for a gesture-type quick access.

Points on/off is also similar, usually when you have points on you have them on for a while, it's not very common to want to turn on control points for just one second and then off again. So it's also not really a good target for a shortcut action either.

It tends to be bad overall to try and optimize actions that are not actually needed very frequently.

I'm still not sure what to do with double clicks though, I kind of like to stay away from them. Maybe if I can't figure it out at some point I could set it up so you could customize it. But they might be needed for some groups or instance editing functions though.

- Michael