CAD tip # 6103:

Question

CAD

% platform category

Arithmetic expressions in AutoCAD dynamic input fields.

Using AutoLISP, you can enter values computed as mathematical expressions - at almost any prompt in AutoCAD, including the fields of dynamic input interface.

E.g. when specifying a line length (direction given by cursor rubberline) you can enter not only a number (distance) but also a LISP function (equation) enclosed in round brackets - e.g.:

(- 264 39)
(* 6 7)
(/ 22.0 7.0)
(+ 1 2 3 4 5)

Please note that the LISP notation is different from common arithmetics - first comes the function, then its operands.

ACAD

*CAD

22.4.2008 11296×

Comments Tell a friend

this tip shared by ARKANCE experts applies to: AutoCAD ·

See also:
Tip 14861:	RegExpCnt - LISP string replace function with arithmetic/counter-extension
Tip 14459:	How to replace missing functions min() and max() in Revit expressions?
Tip 14417:	Quick calculator on an AutoCAD keyboard shortcut.
Tip 14363:	Yesterday's, tomorrow's, past or future date in the DWG drawing.
Tip 14223:	Arithmetic operations for renaming blocks, levels, layouts...

Selected tip: Command: MOVE, Error: internal error: !scandr.cpp@1117:eHadMultipleReaders

Back All CAD Tips

Locked layers displayed faded. « | » How to delete a named page setup?

Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above). You may also add a link to your web - like this "fan" link:

Text:

FAQ

Please use these tips at your own risk.
ARKANCE is not responsible for possible problems that may occur as a result of using any of these tips.

CADforum

Tips, tricks, utilities, help, how-tos and FAQ for AutoCAD, LT, Inventor, Revit, Map, Civil 3D, Fusion, Forma, 3ds Max and other Autodesk software (community support by ARKANCE). See About CADforum.

ARKANCE CZ - Autodesk Platinum Partner & Training Center & Consulting Services Partner

CONTACT:
webmaster.cz@arkance.world | tel. +420 910 970 111



Visitors now: 8926