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Thanks, info published here: http://cad-community.ning.com/groups/autocad/forum/autocad-platform-customization-autolisp

Thomas Stansell

Since Sybex sold out to Wiley and took down the support page for this book I have no where to go to ask about this...so I am doing it here. I hope someone is looking. First things first, I am a newb when it comes to lisp, but have been working with ACAD for 20 years and am a Autodesk Certified Professional.

This code on page 7

(command "change" (entlast) " " "p" "c" cnt " ")

this bit of code seems to to break, or maybe I am just doing something wrong. But if you can help, I surely would appreciate it. this is the error code I get at the command line when I try to run this bit of code...

Specify center point for circle or [3P/2P/Ttr (tan tan radius)]:
Specify radius of circle or [Diameter] : 1.500000000000000
Command: change
Select objects: 1 found
Select objects:
*Invalid selection*
Expects a point or Window/Last/Crossing/BOX/ALL/Fence/WPolygon/CPolygon/Group/Add/Remove/Multiple/Previous/Undo/AUto/SIngle
; error: Function cancelled

Lee Ambrosius

Hello Thomas,

I will have to check, but the support page for the book should still be up. The problem with your code exists in two places, " " should simply be "" which represents an Enter.

Here is your original code:
(command "change" (entlast) " " "p" "c" cnt " ")

Here is what the code should be:
(command "change" (entlast) "" "p" "c" cnt "")

Let me know if you have any further questions.


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