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aabstrct.txt
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1989-10-09
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Date: Monday, 9 October 1989 18:05-MDT
From: Benjamin Olasov <olasov@heathcliff.cs.columbia.edu>
To: kpetersen@wsmr-simtel20.army.mil
Re: New PD1:<MSDOS.AUTOCAD> Uploads
I've uploaded the following files to SIMTEL20:
<msdos.autocad>
RECT.ARC AutoLISP: Rectangle drawing routines
SFILL.ARC AutoLISP: Fill between 2 Arcs, Lines, Plines
PDIST.ARC AutoLISP: Finds dist betwn two pts on pline
PARNCH.ARC AutoLISP parentheses checker/ pretty printer
DTL.ARC AutoLISP: Extracts detail section of drawing
ANSIMENU.ARC AutoLISP: ANSI menu system for developers
SV-ENV.ARC AutoLISP: Saves AutoLISP environment to file
DRAGON.ARC AutoLISP: Generates recursively defined dwgs
CHG.ARC AutoLISP: Low level entity access
DOOR.ARC AutoLISP: Two pick door program
These files replace the file ACADARC.ARC now in the <msdos.autocad>
directory. Most of these files are AutoLISP code, for use with
AutoCad's imbedded LISP interpreter. Although they're uploaded for
the MSDOS section, they should work with Unix AutoCad or MacIntosh
AutoCad as well. The one exception is MENU.LSP which uses the DOS
specific ANSI.SYS device.
I hope they're useful. Feedback is welcome.
Regards,
Ben olasov@cs.columbia.edu
Detailed descriptions of the uploads follow:
--------
RECT.ARC AutoLISP: Rectangle drawing routines
RECT.LSP
RECT draws a rectangle based on digitizing the lower left corner and
supplying X and Y dimensions. The widths and rounding radius can either
digitized or entered in dimension format from the keyboard.
REC draws a rectangle based on digitizing two corners and prompts for
the corner rounding radius. The rounding radius can be digitized.
The default rounding radius is always 0.
By Ben Olasov, Graphic Systems, Inc., Cambridge, MA
SFILL.ARC AutoLISP: Fill between 2 Arcs, Lines, Plines
SFILL.LSP
SFILL will construct an even division of SOLIDs between any 2 Arcs,
Lines or Polylines on any elevation plane.
This routine was once RULESURF.lsp and much of the code was designed
to collect and use 3dpoints for 3dfaces. It works well with the SOLID
entity and I think you will find it very useful. Please feel free
to modify and improve this code.
Note: the entities must "read" in the same direction, else you will
get a major bow tie effect.
By Jamie Clay, AutoDesk, Sausalito, CA [76703,4204]
PDIST.ARC AutoLISP: Finds dist betwn two pts on pline
PDIST.LSP is a AutoLISP 2.6-based user defined command that measures
the distance between two points along a polyline. This is accomplished
by BREAKING out the polyline segment to be measured, using the
AutoLISP 2.6 AREA command to report the length of the polyline,
and using the UNDO command to repair the break.
By Philip M. Kreiker, Looking Glass Microproducts
PARNCH.ARC AutoLISP parentheses checker/ pretty printer
Program for AutoCAD users who need to "clean-up" a Lisp source file
similiar to "Pretty-Type" and do Parentheses checking at the function
level.
This routine will not only check each function and report on missing open
and closed parentheses but it will also create a file, [filename.CNG], that is
indented at each parenthesis level. This file allows easy traceback of the
parentheses levels of the routine, it can also be the final source file.
Usage: Type PARNCH at the DOS command prompt.
By George Hartinger, P.O.Box 40812, Grand Junction, Colo. 81504
DTL.ARC AutoLISP: Extracts detail section of drawing
DTL.LSP
Extracts a section of a drawing for a detail.
Lines, Arcs, & Circles are trimmed to the box boundary.
P-LINES and equal scale blocks are exploded one level in the detail
before trimming.
By Robert McNeel & Assoc. 1310 Ward St., Seattle, WA, 98109
ANSIMENU.ARC AutoLISP: ANSI menu system for developers
MENU.LSP
The function MENU-OPERATION creates menus in text screen mode for AutoLISP.
It assumes an 80 column textscreen monitor and ANSI.SYS graphics device
MENU-OPERATION looks for and returns an integer.
In this version, the header, prompt and individual items in the item-list
MUST all be strings.
The syntax is:
(menu-operation "header" '("item-1" "item-2" ... "item-n") "prompt")
By Ben Olasov, Graphic Systems, Inc., Cambridge, MA
SV-ENV.ARC AutoLISP: Saves AutoLISP environment to file
Environment writing function for *Release 9*. Flaky in Release 10.
This function C:SV-ENV saves the current LISP environment into a file with
the name of the drawing and with the extension .LSP. For example, if the
name of the current drawing whose LISP environment you wish to save is
FOOBAR.DWG, then the name of the LISP file to which the environment is saved
will be FOOBAR.LSP.
For this function to work at all, you must have placed a marker in your
ATOMLIST (AutoLISP's record of all LISP variables, functions, etc.).
To do this, simply place the following line at the end of your ACAD.LSP file:
(setq MARK 'T)
Then the SV-ENV function will not attempt to record AutoLISP's primitive
functions, or the functions automatically loaded with your ACAD.LSP.
To restore your previous environment of variables and user functions, just
type (load "dwgname") at the command prompt, where "dwgname" is the name
of the drawing whose LISP environment you saved.
By Ben Olasov, Graphic Systems, Inc., Cambridge, MA
DRAGON.ARC AutoLISP: Generates recursively defined dwgs
DRAGON.LSP
From _LISP_ by Patrick H. Winston and B. K. P. Horn, published by
Addison/ Wesley. Contains command level functions C:DRAGON, C:C-CURVE
and C:DEMO.
By Ben Olasov, Graphic Systems, Inc., Cambridge, MA
CHG.ARC AutoLISP: low level entity access
CHG.LSP
CHG displays and modifies the properties of individual entities.
CHG creates a numbered menu of the selected entities properties, and
then prompts the user to select the number of the property to modify.
CHG then prompts for a new value for that property, which may be a
point (list), real, integer, or string.
Any changes made by CHG can be undone using AutoCad's 'U' command.
Doing so will return the drawing to its state before using CHG.
An example use of CHG:
In a drawing containing two valid blocks A and B, an individual
iteration of block A can be transformed to an iteration of block B by
giving B as its new name. All of its previous insertion parameters will
remain the same, but its identity will be changed to block B. If the
name of the layer in which the entity resides is changed to the name of
an existing layer, the entity will change its residence to that layer.
However, if the new layer name is the name of a non-existing layer, a
layer with that name will be created, and the entity will be transferred
to that layer.
By Ben Olasov, Graphic Systems, Inc., Cambridge, MA
DOOR.ARC AutoLISP: Two pick door program
DOOR.LSP contains the command level function C:DOOR which prompts for
the hinge point of the door, then the swing point, and proceeds to break
the wall, finish the door opening, and draw a door symbol scaled to the
size of the opening.
By Ben Olasov, Graphic Systems, Inc., Cambridge, MA
--------
EOF