< it's not a good practice for a good clean and proper model structure.
yes for construction of buildings but for grafic that is no importance :)

"+" = more :)

green start button was for make a difference with white buttons default who can be present on the same time on the screen ;)
So maybe your script can draw a green point ? :)

Hi Pilou,

> So maybe your script can draw a green point ?

You can do this already - set the style Green to be the "Active style" by right-clicking on its swatch in the Scene browser.

The active style is the one that has a ring around the outside of its swatch, and any newly drawn objects are assigned that style.

So if you set the active style to Green, then the points that are created by the MarkOpenCurveStart command will get assigned to Green.

You'll probably then want to set the active style back to Default when you are done.

- Michael

Hi Pilou, so the way you're talking about getting the twist is something that you're specifically doing to curves that you select after the sweep, right?

So you don't really need any script - you can mark the curves that you are going to flip in whatever way you want - assign them a name, draw a little x next to them, put your own point marker on the ones you are flipping, put them on a particular style, whatever you want...

Maybe assigning a name is an easy way, you must have them selected before you flip them, so you can assign a name right then as a way to keep track of them.

- Michael

< You can do this already - set the style Green to be the "Active style"
Works like a charm!

< So you don't really need any script
Name can be a solution but the script is more speedy as i can see all curves in one time
so I can select any as I want ;)
Here I have 3 different curves choosen randomly for flip, so no repetitive!
Combinaison are quasi infinite for a human time!

With the green point it's very easy to select any thing for flip them then obtain crazzy chains of objects! ;)
green point on the left, green point on the right are very cool infos!
Of course i must relaunch the script between each changement!

About the automatic sweep :)
I have an headache for modify verticaly just the extremities of a curve straight line with only 2 profils
before to see that I must enable the Twist "Flat" against "Freeform" !!!
I had obtain a mysterious twist as soon as move the second extremity! :)

And also that the click on the left path or the right path gives not the same result!
The inverse!

Flat Direction is also a funny option! :)

Now all seems clear for this crazzy function :)
I will made a little video about all that :)

Hi Pilou,

> And also that the click on the left path or the right
> path gives not the same result!
> The inverse!

Yup, that is how you control how the sweep will be done in auto-place mode.

Say for example you want to sweep these profiles along the other path curve:



There are 2 possible ways to create the sweep - which one is used can be controlled by which end you clicked nearest to when selecting the path curve.

For example if you select the path curve by clicking on it near this end, you will get this result:



But if you select the path curve by clicking on it near the other end, you will get this result instead:




So with auto-place mode there is an ordered list of profiles in left-to-right order, and the first one (the one that is all the way to the left) will be placed on to the end of the path closest to where you clicked on the rail path when selecting it.

- Michael