Autocad Lisp Greater Or Equal Then Code Is A
For the Lisp efficiency point, given two options of equivalent complexity, pick the. This type of filtering works great for locating entities on a certain layer, or that have a certain color or linetype. There are codes for equal, not equal, less than, less than or equal, greater than, greater than or equal, and two bitwise operators. The -4 group code is a special code that lets you perform relational testing.
In all instances where CMP is aware of a trademark claim, the product name appears in initial capital letters, in all capital letters, or in accordance with the vendor’s capitalization preference. Eq (eq exp1 exp2)CMP Books CMP Media LLC 1601 West 23rd Street, Suite 200 Lawrence, Kansas 66046 USA Designations used by companies to distinguish their products are often claimed as trademarks. Returns true if each atom is numerically greater than or equal to the atom on its right. Determines if a list of atoms is numerically greater than or equal to each other. > (> atom atom) (> 3 2) Returns T (> 2 3) Returns nil (> 3 3) Returns T.
The programs in this book are presented for instructional value. No part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher with the exception that the program listings may be entered, stored, and executed in a computer system, but they may not be reproduced for publication. Printed in the United States of America. Published by CMP Books, CMP Media LLC. Copyright © 2002 by CMP Books, except where noted otherwise. All trademarks and registered trademarks in this book are the property of their respective holders.
(greater than or equal to comparison. The ActiveX Automation equivalents are indicated by 'AutoCAD.Application.'. Acquisitions Editor: Editor: Managing Editor: Layout Production: Cover art:Comparison between the AutoLISP functions. The publisher assumes no liability for damages resulting from the use of the information in this book or for any infringement of the intellectual property rights of third parties that would result from the use of this information. The publisher does not offer any warranties and does not guarantee the accuracy, adequacy, or completeness of any information herein and is not responsible for any errors or omissions.
10 Exiting and reentering the IDE. 9Finding Your Way Around the IDE.9 Starting the IDE. 3 Programming Choices in AutoCAD.4 Blocks and menus. 1 LISP versus other languages. 1The History of Visual LISP. And Canada by: Publishers Group West 1700 Fourth Street Berkeley, CA 94710 1-80 ISBN 0-57820-089-XTable of Contents Introduction.
Assigning values to symbols. 23 IIIThe Essence of Visual LISP. 21 Using breakpoints and the Watch window. 20 Using the IDE to Debug Programs.21 Finding parentheses imbalance. 20 Loading a Program into AutoCAD. 12 Navigating the text editor.
Defining symbols with SET. All expressions return an answer. Reserved functions in LISP.
Finding the length of a string. 25 26 28 29 29 30 30 30 32 32 33 34 35 36 40 40 41 42 45 50Working with Strings. Example: Returning Current AutoCAD Settings.
53 54 55 56 56 56 57 57 57 58 60 62 63 63 65 68Working with Numbers.
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