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For example, entering pts.J will set the point style to the shape of an X. Once it is loaded, you can use any of the macros contained within it lust by entering the macro name. 1sp file the first time you want to use one of the macros, and they’re all available for the rest of the session. Then, whenever you want to these macros, you don’t have to load each one individually. Instead, you load the Keycad. 1sp, and be sure you save it as an ASCll file.
#LISP TUTORIAL AUTOCAD WINDOWS#
Use the Windows Notepad application and copy the listing in Figure 19.17.Give this file the name Keycad.
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Table 19.1 shows the command abbreviations and what they do. For example, the third item, defun c: corner, would cause AutoCAD to start the Fillet command, enter an R to issue the Radius option, and finally enter a 0 for the fillet radius.
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The other macros are commands that include optional responses. This file contains the macro you used previously, along with several others. example, where the Breakat macro is saved, along with some other macros I use often.įigure 19.17 shows the contents of a file named Keycad.1sp. lsp extension, as shown in the following. Unless you want to recreate this macro the next time you use AutoCAD, you can save it by copying it into an ASCII text file with a. When you create a program at the command prompt, such as you did-with the Breakat macro, AutoCAD remembers it only until you exit the current file. All parentheses in an AutoLISP program must be in balanced pairs, so these two parentheses close the opening parenthesis at the start of the command function as well as the opening parenthesis back at-the beginning of the defun function. The pause function, on the other hand, does not require quotation marks because it is a proper function, one that AutoUSP can recognize.įinally, the program closes with two closing parentheses. Literal keyboard input must be enclosed in quotation marks in this way. Notice that most of the items in the macro are enclosed in quotation marks. In this particular macro, AutoLISP pauses to let you pick an object to break. Pause is an AutoLISP function that tells AutoLISP to pause for input. Only one item in the Breakat macro-the word pause-is not part of the keyboard input series.
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Conmand is an AutoLISP function that tells AutoLISP that whatever follows should be entered just like regular keyboard input. The details aren’t important just be aware that these parentheses must follow the command name.įinally, a list of words follows, enclosed by another set of parentheses. This encloses what is called the argument list. You will see that it has been split into two lines, as shown in Figure 19.15.Īfter the command name is a set of open and closing parentheses.