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RE: Off topic, Moment of Inertia

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AFAIK, this feature is built into R14.

First you must change your object into a region.

Type "region" at the command line then select the objects you want to
convert into a region.

Once you have done this, type "massprop" at the command line and then select
the region object you just created.

Q.E.D.

Bill Allen, S.E.
ALLEN DESIGNS
Laguna Niguel, CA


||-----Original Message-----
||From: Fountain Conner [mailto:fconner(--nospam--at)pcola.gulf.net]
||Sent: Thursday, February 10, 2000 10:45 AM
||To: seaint(--nospam--at)seaint.org
||Subject: Off topic, Moment of Inertia
||
||
||
||Does anyone have an ACAD Lisp routine that will reliably calculate the
||moment of inertia of a shape once it's drawn?
||
||I tried one, but it wasn't too accurate -- even on a simple rectanguar
||section.  Build-up sections were worse.
||
||Thank you,
||
||Fountain E. Conner, P.E.
||1724 Beaver Pond Rd.
||Gulf Breeze, Fl. 32561
||   Phone 850-932-5547
||   Fax      850-934-1916
||
||