Another crossing post
See my anime above :)
You make many selections right to left ?
And yes the result is the result wanted!

There is not an "internal" selection loop ?
(from a left extremety of a "good" first segment at each intersection I go on the left for example ;)

Hi Pilou,

> But how do you select the outline in one pass ?
> seems i must make multiple precise clicks selection?

Yes you make one selection per corner area, but going starting from the left and going to the right. When you go in that direction it only captures things that are totally contained inside the window. The other direction (starting right and going towards the left) which you are showing above will capture anything that crosses the box at all, which you don't want in this particular case.

Here is a demonstration, especially notice the on which side I start each window, and see how quickly it goes:




- Michael

Yes That is I have under stood! A multiple selection! :)

What do think of my another crossing post of the pseudo code of an internal loop selection?

Hi Pilou,

> Another crossing post
> See my anime above :)
> You make many selections right to left ?
> And yes the result is the result wanted!

Sorry it looks like I said the wrong way above (I will edit it) - you want to start on the left and go towards the right for the "strictly contained inside" type of window selection.



> There is not an "internal" selection loop ? (at each intersection I go on the left for example ;)

Sorry no there isn't any automatic way to do the loop selection, you will need to do the 12 seconds of selecting things to get the final result.

- Michael

OK! That will be maybe for the V5! ;)

In any case very cool trick!

Hi Pilou,

> What do think of my another crossing post of the pseudo code of an internal loop selection?

Maybe someday, but as you can see in my example video it really goes quite quickly already - it would take me a lot longer time than 12 seconds to make a special internal loop selection mechanism. So for now just doing this type of selection should get the job done quite easily already.

- Michael

<< it would take me a lot longer time than 12 seconds to make a special internal loop selection mechanism.
Sure! :)
But possible in theory without time limit?

PS I made the "selection" in less than 6 seconds! ;)

Hi Pilou,

> But possible in theory without time limit?

Sure! But it's hard to come by that unlimited time in practice though! ;)

And actually it could be somewhat difficult to implement, selection code could probably separate things into different groups but it might have some difficulty deciding which of the groups are meant to be kept and which are meant to be discarded. The Offset command is able to do that better because it does extra work to keep track of where pieces originated from.

But at any rate, it would take me far longer to implement it than the amount of time that it would save you.

- Michael

In case of result of points angle jonction are too "hard" no possibility to automate this ?
Trim at equal distance then "Blend" them

Hi Pilou,

> In case of result of points angle jonction are too "hard" no possibility to automate this ?
> Trim at equal distance then "Blend" them

Try using the Fillet tool on the curve for rounding off the sharp corners.

First join the curve pieces together so you've got one long closed curve. Then select it and run Construct > Fillet. The Fillet command will show points at each sharp corner and will prompt you to select which corners you want to round off. You can just right-click or push "Done" to target all of them.

Then enter in your fillet radius, and you can choose whether you want a circular shape or a blend shape for the connecting pieces.

That will round off all the sharp corners in one step.

- Michael

Always forget the Fillet in 2D! :)