August 2008

  • Exploring the autolisp SSGET function - part 2

    Submitted by rkmcswain on Wed, 08/20/2008 - 22:00

    Ok, getting back to the last (ssget) call in part 1...

    (ssget "_W" 
 (list 5.0 5.0)(list 8.0 8.0)
 '((0 . "CIRCLE")(-4 . "<")(40 . 1.0))
)
 Read more »

  • Exploring the autolisp SSGET function - part 1

    Submitted by rkmcswain on Wed, 08/20/2008 - 07:30

    If you have written routines with Autolisp, then you have probably used the (ssget) function to select entities on the screen, either automatically or by prompting the user.

    (ssget) is a powerful function that can do more than you probably realize. Let's look at a simple example.

    (ssget '((0 . "TEXT")))
 Read more »

  • S::STARTUP Function

    Submitted by rkmcswain on Mon, 08/18/2008 - 21:10

    In the previous post about Startup Lisp Functions, the special (S::STARTUP) function was mentioned. Startup lisp code is loaded before the drawing is initialized, but you cannot call the (COMMAND) function until after the drawing is initialized. The solution is to place your (COMMAND) calls inside the (S::STARTUP) function. Read more »

  • Startup Lisp Functions

    Submitted by rkmcswain on Mon, 08/11/2008 - 14:01

    If you have lisp routines that you want to make available in each drawing session, forget the "Startup Suite" and load them using the "acaddoc.lsp" file. "acaddoc.lsp" is not included with AutoCAD, you create it yourself. But it is nothing more than a plain lisp file, except that the first one found at drawing startup (just put it in your support file search path), is loaded automatically each time a drawing is opened. Read more »

 

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