How To Divide an Object

[arika]

I would like to know how to to divide an object into 2 objects?

[rkmcswain]

What type of object?

 

With many simple objects like a line or arc, you can use the BREAK command.

 

If it's a more complex object, like a hatch object or a region, then something different may work.

[arika]

So Break, divides it, but it leaves only one side and deletes the other side. i need both sides. Just separated. in the attached pic i would like to divide in the middle of the circle and keep both sides.

[rkmcswain]

You just need to break the rectangle and the ellipse at two points each. Use the same point (the @ sign) for both points of the BREAK command. Some versions of AutoCAD and otherCAD may have a menu item that assists in Breaking At The Pick Point. An ellipse and circle are kind of unique. You will need to break the first time leaving a gap, then adjust for that afterwards. 

 

[eldon]

When you have one object, a simple copy will make two objects. Then you can break or trim to give you two half objects.

[arika]

If I make a Copy and Break both, I'm worried I might not break both of them at the same point.

[arika]

3 hours ago, rkmcswain said:

You just need to break the rectangle and the ellipse at two points each. Use the same point (the @ sign) for both points of the BREAK command. Some versions of AutoCAD and otherCAD may have a menu item that assists in Breaking At The Pick Point. An ellipse and circle are kind of unique. You will need to break the first time leaving a gap, then adjust for that afterwards. 

 

 

Are you saying to hit the "@" when selecting the break point?

[eldon]

Draw a line across your break point before you copy, and then trim the excess on each copy.

 

[arika]

2 hours ago, eldon said:

Draw a line across your break point before you copy, and then trim the excess on each copy.

 

hmm, i think that might work, thanks

[BIGAL]

Search forums/autodesk I think there is a "BREAK" lisp over there maybe kentcooper.

 

Re copy, just copy a fixed distance 50 trim both in half then move back 50.

[Dadgad]

Always so many different ways to go.  We all develop our personal favorite ways.  

After trimming across an added line (as suggested by eldon) you could also use the mirror command.

I tend to use the TRIM command, with the commandline ALL option much more than the BREAK command.

 

Yeah, that isn't really dividing an object into two pieces, but it certainly will bear a striking similarity to it.

 

Edited December 18, 2020 by Dadgad