ffbops.blogg.se

1. #AUTOCAD LISP GREATER OR EQUAL THEN ARCHIVE#
2. #AUTOCAD LISP GREATER OR EQUAL THEN CODE#
3. #AUTOCAD LISP GREATER OR EQUAL THEN MAC#

When using an if form you must use a progn in branches where you need to put more than a single form. Otherwise use either when or unless depending on what is more readable for your test.

#AUTOCAD LISP GREATER OR EQUAL THEN CODE#

To recap you should use if only when you need to write code for both branches (the true and the false one).

The default value is the smallest number contained in all selected texts and found by the 'Search from' option. in other words it's equivalent to (if (not (< x 0)) Only numbers equal or greater than the figure definied in 'Start from' will be affected. The unless form has the very same meaning but with the condition reversed. The when form above is equivalent to (if (< x 0) Because IF only accepts one statement for a then clause, you must artificially wrap the three statements into a grouped statement by use of PROGN.

If you want to put more expressions in one of the two cases you must wrap them in a progn form (if (< x 0) You can also omit the last expression and in this case it's assumed to be NIL. (print "x is greater or equal than zero")) Pixel Graphics Inc.In lisp the if operator accepts three expressions that are the condition, value in case the condition is true and value when the condition is false.

#AUTOCAD LISP GREATER OR EQUAL THEN MAC#

Lee Mac - AutoLISP Tutorials and Programmes.

#AUTOCAD LISP GREATER OR EQUAL THEN ARCHIVE#

However, if there's something you can't find, the AfraLISP Archive contains a full copy of the original site as originally created by Kenny Ramage. We're currently revamping the entire site to bring you updated tutorials and a better user experience. ‘ Hey, what's happened to AfraLISP?’ If you've visited our site before, you'll notice some big changes. The (cond) function takes any number of lists as it's arguments.Įach argument must be a list containing a test followed by any number of a numeric value is less than or equal to another. ((= a "M10") (prompt "\nYou have choosen M10")) AutoLISP offers two conditional functions that allow you to build-in some decision making capabilities. Another way is to load it using the Command Line. One way is to go to Tools, Load Application, then browse for the file and load it from there. Statements associated with that condition. LOADING AND RUNNING LISP PROGRAMS There are a number of ways to load a LISP program into AutoCAD. Once (cond) finds the first condition that is true, it processes the Like (if), except (cond) can evaluate any number of test conditions. Specify the maximum amount by which both expressions can differ and still If you drag the size too large and the arrowhead disappears, simply repeat the process. Remember that the maximum allowed arrowhead size is a function of the length of the first leg of the leader.

Select an mleader, then watch as your cursor defines the arrowhead size. You can use the optional numeric argument, fuzz, to Start by loading the LISP file, then type in the command name ArrowheadScale. The (equal) function determines whether two expressions evaluate to the (eq c b) would return true, b and c are exactly the same list. (eq a c) would return nil, a and c are not the same list. The (eq) function determines whether two expressions are bound to the same Let's look a bit closer at the (eq) and the (equal) functions. NOT returns true if it's argument is false and returns false if it'sĪrgument is true. OR returns true if any of the arguments are true. The available logicalĪND returns true if all arguments are true. That determine how two or more items are compared. You can also use (if) along with logical operators. You can use as many statements as you like within the (progn) function.

Statement, you must use the (progn) function. If you need to evaluate more than one then, or else Unlike other languages though, you can match only one (if) statement withĪ then statement. an entity definition list (association list) with autolisp in AutoCAD. (If) is probably the most important and widely use condition An asymmetric chamfer has an angle greater or lower 45 which results in.