Centre of Polyline + Scale 1

[aesoton]

Is it possible to draw a polyline then find out its centre. The polylines will mainly make up 2D boxes but they could be any shape. What I want to do is draw the line and scale it using its centre point.
It would also be great if I could do this in a lisp so that I can do it over again quickly.
Is this possible?
Thanks
Andrew

 

[borgunit]

If I remember: if the polyline is closed, type in REGION, make it a region and then do a MASSPROP on the region. It should spit out the info.

"Everybody is ignorant, only on different subjects." — Will Rogers

 

[aesoton]

Thanks for that - It gives me excatly what I want. Have a star! I now need to work out how to get this into a macro.
Andrew

 

[Exxit]

andrew299,
You can look in the

http://www for

a lisp:

http://www.resourcecad.com/programs/

You have to register, an then You can download the "cent"-tool. It makes a point on the centroid of Your polyline. But I didn't test it by myself.

Lothar

ADT 2004
ACAD 2002