If the 2 Control Points are on the same x,y,z place
make an Edit /Join must make he trick!
So you must first put them by any functions on the same place! ;)
Maybe not the more speedy! But with more 40° i can't have more clear spirit! :)

Here draw a curve by 4 points
Click first, Helpers Lines, Tangents from the 2 extremities
Click second Point on intersection, click third Point on second intersection, Click last extremity
Edit Join
Show Points
KiIl that you don't want! )

Hi Avila, you can move those points together to make a closed curve by using the Transform > Move command.

Step 1 - select your curve and use Edit > Show pts to turn on control points.

Step 2 - select one of the open vertices.

Step 3 - run the Transform > Move command.

Step 4 - The command prompt in the upper right area of the window will say "pick base point". Make sure you have Object Snap turned on (on the bottom toolbar) and click on the selected vertex for the base point of the move.

Step 5 - The command prompt will now say "Pick target point". Click on the other vertex to be the target point of the move and then that will make a closed curve.


If these were separate curves instead of points on one curve then you could just drag one point to the other without needing to run the Transform > Move command. But currently when you drag points on a curve it will not snap to other points of the same curve because of awkward things like a point trying to snap to it's own previous location.

So another way you could do it is to use Edit > Separate to break it apart into separate objects, then turn on points and drag one to the other and then rejoin.

That is something that I want to fix up though to allow dragging to snap on to other points of the same curve, at least the other open end. But it doesn't do that currently.

- Michael

Or another way is to squish them flat using the edit frame. That can squish things flat in one direction at a time so you do it like this:



- Michael

Cool! Points are automatically collapsed merged ?

Hi Pilou, yes closed curves will automatically have the start and end control points represented by just one shared point.

- Michael

Excellent! (... for "closed curves!)
No closed curves here! )
Edit / Join must be done for collapse mutual points...(not made yet here)

I see michael, your explanation is very helpful, when scaling two vertices in both directions it works as a collapse command (in case it is the same shape, if they are two different shapes you have to use the join command at the end) and when using the move command works like a target weld.

Remember that the point thus created is a corner point! (edit/join or flat/flat)

- Zooen