How to get outside contour from a cloased polyline?

[Anonymous]

Hi,

I need some help, i have a closed polyline (with self-intersection inside if it matters), so i need to get only contour from the outside(i meen the shell). Does such a command or function exist? Thanks and  Excuse my grammer.

[Anonymous]

Hi,

I need some help, i have a closed polyline (with self-intersection inside if it matters), so i need to get only contour from the outside(i meen the shell). Does such a command or function exist? Thanks and  Excuse my grammer.

[pendean]

Show us what that looks like please, thanks.

[pendean]

Show us what that looks like please, thanks.

[Alfred.NESWADBA · Accepted solution]

Hi,

draw a rectangle that is bigger then  all your existing objects (which are then all inside that rectangle), then use command _BOUNDARY with picking a point inside the rectangle, but outside your original objects (make sure island detection is on)

You can then delete the rectangle with the polyline created from the _BOUNDARY command, and you should have gotten a second polyline that goes around your existing objects.

Create a new layer before starting the command, this will give you a better chance to select the polyline(s).

- alfred -

[Alfred.NESWADBA · Accepted solution]

Hi,

draw a rectangle that is bigger then  all your existing objects (which are then all inside that rectangle), then use command _BOUNDARY with picking a point inside the rectangle, but outside your original objects (make sure island detection is on)

You can then delete the rectangle with the polyline created from the _BOUNDARY command, and you should have gotten a second polyline that goes around your existing objects.

Create a new layer before starting the command, this will give you a better chance to select the polyline(s).

- alfred -

[Anonymous]

Thank you so much! 😃 It works! :confetti_ball::party_popper::party_popper:

[Anonymous]

Thank you so much! 😃 It works! :confetti_ball::party_popper::party_popper: