Loading AutoLISP Files by Kenny Ramage Note: One of the most important things to remember about loading AutoLisp Routines is to ensure that your Lisp files and any support files (i.e DCL Files; DAT Files; etc) are in your AutoCad search path. (I dedicate a directory to all my Lisp files and relevant support files. There are numerous ways of loading AutoLisp Files: Command Line Loading The simplest is from the AutoCad command line. The syntax for loading AutoLisp files is: (load 'filename') The.lsp extension is not required. Menu Loading The following code samples are one way of loading AutoLisp files from a menu. Error The Product Definition File LostPull Down Menu's: ***POP12 T_Steel [Steel Menu] T_Beams [Drawing Setup]^C^C^P+ (cond ((null C:DDSTEEL) (prompt 'Please Wait.' )(load 'DDSTEEL'))) DDSTEEL Toolbars: ***TOOLBARS **STEEL TB_DDSTEEL [_Button('Steel', 'STEEL.bmp', 'STEEL32.bmp')]^C^C^P+ (cond ((null C:ddsteel) (prompt 'Please Wait.' )(load 'ddsteel'))) ddsteel This method of loading Lisp files first checks to see if the routine is already loaded. If it is, it runs the routine. If it is not, it first loads the routine, then runs it. Acad.Lsp File The Acad.Lsp file is a useful way of loading a library of AutoLisp routines. Each time you start a drawing AutoCad searches the library path for an Acad.Lsp file. Grouping multiple AutoLISP statements together under a single UNDO group allows you to rollback all the actions performed by using either the AutoCAD U or UNDO commands. Each command executed with the command and command-s functions explicitly creates its own UNDO group. Unit Definition File Reference (AutoLISP) The AutoCAD unit definition file, acad.unt, allows you to define the factors to convert data one set of units to another set of units. The acad.unt file is a plain ASCII text format file and is used by the unit-conversion function cvunit. Kent Cooper has done it again He made this great LISP routine that I like better than the one that is in AutoCAD. The ADDSELECTED command in AutoCAD is pretty cool. You select an object and whatever properties the object has (layer, color, linetype) and the command that created the object. I have been searching and searching with no answer. I would like to be able to use Lee Mac's lsp file 'A2F.lsp' but with the output being in SF. The output is coming out in SI and I would like to know how to modify it to come out in a rounded off SF number such as 25sf and not 25.5sf. Grouping multiple AutoLISP statements together under a single UNDO group allows you to rollback all the actions performed by using either the AutoCAD U or UNDO commands. Each command executed with the command and command-s functions explicitly creates its own UNDO group. If a user enters U (or UNDO) at the AutoCAD Command prompt after running an AutoLISP routine, only the last. If it finds one, it loads the file into memory. You could use the normal load function (load 'filename') in your Acad.Lsp file but if an error occurs whilst attempting to load one of your routines, the remainder of the file is ignored and is not loaded. Therefore, you must use the on failure argument with the load function: (load 'Lispfile1' ' nLispfile1 not loaded') (load 'Lispfile2' ' nLispfile2 not loaded') (load 'Lispfile3' ' nLispfile3 not loaded') The.MNL File The other type of file that AutoCad loads automatically is the.MNL file. If you have a partial menu file it can also have it's own.MNL file. Just remember that the.MNL file must have exactly the same name as your partial menu file. (except for the.MNL extension, of course.) You can load Lisp files from this file using the load function exactly the same as you did in the Acad.Lsp file. Symantec Antivirus Definition File Download![]() About The Unit Definition File Autolisp Autocad For Machine LearningCommand Autoloader When you automatically load a command from your Acad.Lsp file (or a.MNL file) the commands definition consumes your systems resources whether you actually use the command or not. The Autoload function makes a command available without loading the entire routine into memory. (Autoload 'Utils' '('Utils1' Utils2' 'Utils3')) (Autoload 'DDSteel' '('DDSteel')) This would automatically load the commands Utils1, Utils2 and Utils3 from the Utils.Lsp file and DDSteel from the DDSteel.Lsp file. Tiff Definition File FormatS::Startup Function If the user defined function S::Startup is included in the Acad.lsp or a.MNL file, it is called when you enter a new drawing or open an existing drawing. For example, say that you wanted to override the standard AutoCad LINE and COPY commands with versions of your own, your Acad.Lsp file would something like this: (defun C:LINE ().Your Definition. ) (defun C:COPY ().Your Definition. ) (defun S::Startup () (command 'Undefine' 'LINE') (command 'Undefine' 'COPY') ) Before the drawing is initialised, new definitions for LINE and COPY are defined. After the drawing is initialised, the S::Startup function is called and the standard definitions of LINE and COPY are undefined. The seed was planted that day and Mac's Place was born. We are the kind of diner that supports local farms, dairies and coffee roasting facilities. We support the people and businesses that support us! 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