Go to AutoCAD startup screen and click ”File” and open New ‘’acad’’ template. Then click ‘’Tools’’ and click ‘’Load Application’. Now browse the.LSP file ‘’X-Section’’ and Load it to AutoCAD. (or use the short command ‘’ap’’ and press Enter to open app loader.) If appears any security massage click ‘’Always load’’. This is from my 'Sheet Metal Flat Development with AutoCAD' course. 5 k: 1998-09-10: DOS/ Win: R11-R14: This routine uses the k-factor method with the specified k-factor and metal thickness to calculate the developed length of a sheet metal part by selecting the lines and arcs from a cross-section of the part. The vertical alignment and Road Cross-sectional profile is defined using easy-to-use built-in functions. Volumes can be calculated between a ground Cross-Section group and the design profile or between any two ground Cross-Section groups. Final Cross-Section and long-Section drawings can be plotted directly to a plotter, plotfile.

1. Free Lisp Programs For Autocad Road Cross Sections
2. Free Autocad Lisp Routines
3. Free Download Lisp Autocad

Please feel free to be inspired, cut&paste or if you have any feedback, questions or looking for an AutoLISP programmer for small or large projects go here. If you want some customization or anything else that you can come up with that we might help you with you're welcome to contact us.

• acad.lsp Instruction on the usage of acad.lsp
• acaddoc.lsp Instruction on the usage of acaddoc.lsp
• accdist.lsp Accumulate distances
• AecExportToAutoCAD.lsp Read and write the settings that AecExportToAutoCAD and the like command uses
• AECObjectsExplodeOptions.lsp Read and write the settings in the 'Explode AEC Objects' dialog box when using command _AecObjExplode
• AreaM.lsp Calculates the total area of selected objects
• areaOfObject.lsp Returns the area of selected object
• AreaText.lsp Select a polyline and where to place the text for the area
• AttDefToMText.lsp Convert Attribute definitions to MText
• AttDefToText.lsp Convert Attribute definitions to Text
• axBlock.LSP Generic block and attribute AutoLISP functions
• axCreateVP.LSP Creation of viewports using AutoLISP
• axInsert.lsp Example of inserting a block with ActiveX in modelspace
• backgroundchanger.lsp Change the background color back and forth
• BlockToXref.lsp Convert Blocks to Xrefs
• BOMLengths.lsp Get the accumulated sum length of multiple objects
• CAO_Link_Templates.lsp Create/delete Link Templates using CAO
• ChangeNoPlottableLayers.LSP move all entities from layers that are not plottable to layer defpoints
• dimlinechange.lsp Changes selected line on a dimension to current layer
• DisplayColorProperties.lsp Miscellaneous commands related to Colors on the Display tab on the Options dialog
• DisplayProperties.lsp Miscellaneous commands related to the Display tab on the Options dialog
• DLF.lsp Delete AutoCAD layer filters
• GetPlotDevices.lsp Generic plot setting functions to get plot styles and plotters available
• getvpscale.lsp Get Viewport Scale in active viewport or in selected
• Hatch_Move.lsp Moves the startpoint/snapbase for selected hatches base points independently
• HATCHB.LSP Recreates hatch boundary by selecting a hatch
• HatchBase.lsp Change the hatch base point on one or many hatches
• historylines.lsp Change the number of command history lines
• insrot.lsp 2 versions of Insert block with attribute rotated to specified angle
• JTB_TitleBar.lsp Change the title bar of the AutoCAD application
• layer-list.LSP Layer list to file
• layer-lw-list.LSP Layer and lineweight list is created as a drawing
• layers-erase.LSP Erase all layers that are frozen or off
• layer-state.LSP List layers according to state
• layer-toggle-freeze.lsp toggle the freeze state of layer and regens only the objects on the layer
• LayoutsToDwgs.lsp Creates separate drawings of all layouts
• lengthOfObject.lsp Returns the length or the perimeter of selected object
• LengthText.lsp Select an object with a length and where to place the text for the length
• linetype.LSP Load linetype and check for existence of specified linetype
• mpt.lsp Midpoint of 2 or 3 points
• mstxt.lsp Select multiple different objects (text, mtext, multileaders, dimensions, attributes) with text and edit them one at a time
• osnapz reactor to change colors when osnapz changes
• pagesetup.lsp Miscellaneous routines related to Page Setup
• PersonalMtextSymbols.lsp Add personal mtext symbols in the right click menu in the mtext editor
• pljoinfuzz.lsp Joins lines, arcs and polylines using a fuzz distance
• PlotDevicesFunctions.lsp Miscellaneous Plot Devices Functions
• plotdialog.lsp Force Plot dialog by lisp
• profiles.lsp Miscellaneous profile commands
• ProjectPaths.lsp Project path functions including export to file
• Purge-Point.lsp Kills all POINT 5 vent-objects and V50-dictionaries
• purger.lsp Various purge functions with no command line echo
• PurgeReconciledLayers.LSP Purge all information about reconciled layers in the drawing
• Purge unreferenced images in AutoCAD with AutoLISP - can be used to purge unreferenced images from a drawing and delete and detach all images that are not found
• remicons.lsp Removes the icons Buzzsaw, RedSpark, Point A and FTP in Open dialog box
• SOpen.lsp Open command that works for all cases independent on SDI
• supportPaths.lsp Save and loads support paths to a text file
• TextFunctions.lsp Change all text styles on all objects to named text style
• TextHeight.lsp Text is resized based on the justification point
• tsh0.lsp Set all text style's height to 0
• txtRot.lsp Rotate selected text objects to specified angle
• viewportcenter.LSP Get the viewport center coordinates
• viewsIO.LSP Export and import views
• VPlayers.lsp Save, load and restore frozen viewport layers from file and match from one viewport to another
• vp-outline.LSP Creates a polyline in modelspace that has the outline of the selected viewport
• vpsel.lsp Select all visible objects in selected or active paperspace viewport
• XrefRename.lsp Rename xref and update path
• XrefRepath.lsp Repath xrefs to use relative paths instead of absolute paths.
• zoome.lsp Zoom extents in all viewports
• Download acetutil.zip Documentation for the Express acet functions
• wcmatch AutoCAD AutoLISP function
• Some Free AutoLISP code by Mark Beggs

If you look for an app that can load AutoLISP files from your library take a look at our app JTB Lisp.

AutoLISP / Visual LISP

AutoLISP is based on the LISP programming language. Because AutoCAD has a built-in LISP interpreter, you can enter AutoLISP code at the command prompt or load AutoLISP code from external files. Visual LISP (VLISP) is a software tool designed to expedite AutoLISP program development. AutoLISP and Visual LISP is often used mutually but AutoLISP is only a subset of Visual LISP. Visual LISP was incorporated into AutoCAD 2000 released in March 1999, as a replacement for AutoLISP.

Visual LISP technology is a tool for code creation in the AutoCAD software application. It is a full-featured, interpretive programming language that you can use to call AutoCAD commands, system variables, and dialog boxes. Visual LISP offers a complete development environment, including

• Reduced development time using the integrated development environment (IDE), which makes it easier and faster for users and developers alike to create, debug, and deliver AutoLISP-based applications
• Access to Microsoft ActiveX objects and event reactors
• Source code protection against theft and alteration
• Operating system file-operation functions
• LISP function extensions for list processing

In February 2018, BricsCAD V18.2 came with BLADE, the BricsCAD LISP Advanced Development Environment. See this blog post.

LISP is used by CAD applications like AutoCAD, BricsCAD, DraftSight, GstarCAD, CADopia, IntelliCAD, progeCAD and ZWCAD.

With AutoCAD 2021 improvements have been made to AutoLISP and DCL. These improvements include:

• Cross-platform development with Microsoft Visual Studio (VS) Code. See get started page and videos here.
• Unicode support
• DCL is now supported on Windows and Mac

Miscellaneous tips and trix for AutoCAD AutoLISP

; AutoLISP function to convert degrees to radians
(defun dtr (a)
(* pi (/ a 180.0))
)
; AutoLISP function to convert radians to degrees
(defun rtd (r)
(* 180.0 (/ r pi))
)
; Example on how to remove the last element or item in a list
(setq lst '(1 2 3 4))
(setq lst (reverse (cdr (reverse lst))))
; result is (1 2 3)
; Example on how to right rotate a list 1 step
(setq lst '(1 2 3 4))
(setq lst (append (list (last lst)) (reverse (cdr (reverse lst)))))
; result is (4 1 2 3)
; Example on how to left rotate a list 1 step
(setq lst '(1 2 3 4))
(setq lst (append (cdr lst) (list (car lst))))
; result is (2 3 4 1)

Visual LISP example how to delete all empty layouts (tabs). If the layout has been activated it will contain a viewport object and will not be deleted by this function.

In previous version (= nil (ssget 'x' (list (cons 410 (vla-get-name layout))))) was used but did not catch layouts where the viewport object has been deleted. vla-get-count will return 0 for non activated layouts and 1 for a layout with no objects.

Purge layer filters / delete layer filters in AutoCAD. You get it here at my blog or here.

or another approach because the above one is not working in newer versions of AutoCAD:

Using VBA where QnewPath is the Template File Name: ThisDrawing.Application.Preferences.Files.QNewTemplateFile = QnewPath

Using LISP: (vla-put-QNewTemplateFile (vla-Get-Files (vla-Get-Preferences (vlax-get-acad-object))) QnewPath)

AutoCAD Visual LISP / AutoLISP :: Use User-input As Block Name?

I just need the userinput to be incorporated in the insert command but don't know how to segregate the block name from the block path..
;;;PROMPT USER FOR BLOCK NAME HERE
(setq userinBLKNAME (getstring '
Please type in the block name shown in the allrevblocks - ex: IFCC4:'))
;;;INSERT BLOCK BASED ON BLOCK NAME PROVIDED HERE
(command '-insert' 'B:CADREVBLOCKSIFC'USERINBLKNAME PAUSE '1' ' ')

AutoCAD Visual LISP / AutoLISP :: Append To User Input

I've been trying to append a user input by adding this text 'ABC' to the front of it. How can I do that?
(setq NUMX (getstring '
Please specify NUMBER:')); INPUT NUMBER 123 HERE
(SETQ NUMXX (append '(ABC) NUMX))
So that NUMXX now equals ABC123.

AutoCAD Visual LISP / AutoLISP :: Pausing To Allow User Input?

I want to write a very simple AutoLISP program to scale selected objects by a factor of (1/25.4). How to I get the program to pause and allow the user to select the base point? I know that '~' will bring up a selection window, but what is the character that will allow point selection (in this context)? While we're at it, what is the operator that would trigger a pause and allow user command line input?

AutoCAD Visual LISP / AutoLISP :: Error - Extra Right Paren On Input

In my acaddoc.lsp I have it load an autoload.lsp file that contains many lisp routines (attached). I am getting the 'extra right paren on input' error. It appears to error after the third line in the autoload file 'san18'....I removed everything after the third line and no error, I put them back and it errors and only loads first three?
I am using Civil 3D 2014 and I have added all neccesary paths to the trusted locations.

AutoCAD Visual LISP / AutoLISP :: Automated Drawing Using Input Data?

I would like to automate drawing process for certain data. Using some LISP codes User will be asked to provide some data and using that data an automatic drawing needed to be developed at Drawing editor of AutoCAD. For example;
Enter the width of Sheet: 50 mm
enter the length of Sheet: 200 mm
Enter the sheet thickness: 5mm
Enter type of feed: Automatic
Are there holes in Strip: Yes/No
Specify nu of holes: 5
Position of holes Centre: 5,5
Distance between the holes: At an interval of 20mm each
I just need a LISP code for such program.

AutoCAD Visual LISP / AutoLISP :: Alert Box That Takes User Input?

Is there a way to have an alert box pop up at a certain point in the code which gives the user a chance to cancel the LISP program and not proceed any further?

AutoCAD Visual LISP / AutoLISP :: Getstring Input Integer Or Distance?

I would like to eliminate a mouse click in my program. I use getstring to allow the user to either enter in an integer or a distance used for labeling in a drawing, but I could eliminate the need for the user to then click an option that completes the label if I only knew how to determine if the entry is an integer (such as 5 or 15) or a distance (such as 24' or 36').

AutoCAD Visual LISP / AutoLISP :: Invalid Or Incomplete DXF Input - Drawing Discarded

While opening a dxf file, i find the message:
Syntax error or premature end of file on line 943.Invalid or incomplete DXF input -- drawing discarded.
I have a approx. 10000 dxf files. Is it possible to know which files are invalid without opening them?

AutoCAD Visual LISP / AutoLISP :: How To Locate WDP File With Minimal User Input

I am trying to locate a .wdp file with minimal user input. this is what I have so far
;All file saved in this folder
(setq filedir 'I://PROJECTS//')
;User will put the following in, but there might be a small description after 915-01. That is why I have a wildcard
(setq filename (strcat '915-01*'))
; string together everything
(setq nextlevel (strcat filedir 'JOB ' filename '*' '//ACAD'))
;; the final path should look something like this:
I://Projects// JOB 915-01(something here... could be anything or nothing)//ACAD//915-01(something else could be here as well).wdp
;set file extension
(setq fileext '.wdp')
; search files
(setq wdp_file (vl-directory-files nextlevel (strcat filename '*' fileext)))
I am confused on where and when I can use wildcards for searching directories.

AutoCAD Visual LISP / AutoLISP :: Passing A List Of Points To Function Instead Of User Input

I have a list function that asks for the user to pick points when it is run. It looks something like this (foo arg1 arg2) When invoked it asks the user to pick points and press enter when done It.
Instead of getting the points from the user i want to pass it a list of pre-defined points. The code cannot be changed so I must use it as is.Is this possible, if so how can it be done?

AutoCAD Visual LISP / AutoLISP :: Pausing In A Program To Allow Printing?

Free Lisp Programs For Autocad Road Cross Sections

I have a lisp program which will create a cover sheet for my electrical drawings by extracting data from the title block. Once this is done, I manually print the cover sheet.
What I would like is to create the cover sheet, have the lisp program pause, print the cover sheet, then when printing is done, quit the drawing file so the cover sheet does not remain.
I tried several approaches, but the lisp program finishes before the cover sheet prints.

AutoCAD Visual LISP / AutoLISP :: Program Variable Names?

Is there anyway to program variable names?
What I was thinking of was in a loop some times I need multiple sets of similar variables but am not sure how many sets I am going to need. I would like to be able to increment the variable names each time the loop runs.

AutoCAD Visual LISP / AutoLISP :: Program Hangs Up For No Apparent Reason?

I have an AutoLISP program that hangs up for no apparent reason. I can run the program with an Alert in the loop. The program is a sheet generator, creating a border (insert with attributes), dimensions and MultiLeaders in Model Space, then a new Layout Tab is generated and the new elements are CHSPACEd into the new layout. An Alert temporarily halts the program once the task of a new Layout is created. In this form, the program works as designed. However, if I comment out the Alert, the program hangs up as if in an infinite loop. Also, hitting Escape does not cancel the AutoLISP, I must use Task Manager to end AutoCAD instead. My computer was recently upgraded to Win7 64-bit. I'm running 64-bit versions of software. (AutoCAD MAP 2011).

AutoCAD Visual LISP / AutoLISP :: Blocks Not Inserting Properly Through Program

Have an AutoLisp program that inserts a block with attributes. Been using it forever. Yesterday I ran the program and somehow when the block is inserted, it skips the Y scaling factor. The program should insert a block at a point with a X scale of 19.2, Y scale of 19.2, Rotation at 0 and then four attribute values.
What is happening is the block is inserted at the correct point and X scaling factor, but the Y scaling factor goes in for the Rotation angle (19.2 degrees), the Rotation angle goes in as the first attribute and the remaining attributes are shifted over and the last attribute is missing.Line of code is:
(command 'INSERT' 'CNVTAG' inspt scl scl 0 text1 text2 text3 text4)
The command prompt displays:
Command: (command 'INSERT' 'CNVTAG' inspt scl scl 0 text1 text2 text3 text4)
INSERT Enter block name or [?] <NEWWHDBORD>: CNVTAG
Units: Inches Conversion: 1.0000
Specify insertion point or [Basepoint/Scale/Rotate]: Specify scale factor <1>:
19.20000000000000
Specify rotation angle <0>: 19.20000000000000
Enter attribute values
Conveyor number: 0 Conveyor Speed: 5315-BCS Motor Horsepower: 1.5hp Release
Mode: 45/90fpm
I looked at the system variables INSUNITS, INSUNITSDEFTARGET and INSUNITSDEFSOURCE AND THEY ARE ALL SET AT 0..Currently using AutoCAD 2010.

AutoCAD Visual LISP / AutoLISP :: Simple Program That Changes Color Of M-leader Lines?

have a simple lisp (no v.b.) program that changes the color of m-leader lines in acad 2010?
IV 2010 Suite
Digital Storm PC:
EVGA & Intel components
Win 7 Pro 64 bit

AutoCAD Visual LISP / AutoLISP :: Get Output From MEASUREGEOM Command Back Into VL Program

Is it possible to get the output from the MEASUREGEOM command back into an VL program?If I use:(setq angle (command 'MEASUREGEOM' 'a' line1 line2 'x'),
the value of the angle is displayed on the screen but is not passed back into the program and the variable 'angle' is not set.Is there a way that I can set this variable?

AutoCAD Visual LISP / AutoLISP :: Program To Evenly Space Objects Across Given Distance

Free Autocad Lisp Routines

I would like to write some sort of AutoLISP program to evenly space objects across a given distance. I have attached a .pdf file showing what exactly I mean.
I would like the program to enable me to either enter or measure (via the selection of two points) the 'z' distance, to enter or measure the 'y' distance, and to enter the number of objects, 'n'. I would then like the program to evenly space 'n' objects across the 'z' distance.
A program like this is, I have to be honest and say, way beyond my current capabilities.
Perhaps some initial guidance to get me going?

AutoCAD Visual LISP / AutoLISP :: Program Loop To Draw Lines With Rubberband

i am writing something that will draw consecutive lines with a rubberband to be used as a leader from a block's insertion point. this:
(WHILE
(SETQ LN (GETPOINT '
Select Next Point (ENTER to Finish) : '))
(COMMAND 'LINE' (GETVAR 'LASTPOINT') LN ')
)
works, but does not include the rubber band. i tried:
(WHILE
(SETQ LP (GETVAR 'LASTPOINT'))
(SETQ LN (GETPOINT LP '
Select Next Point (ENTER to Finish) : '))
(COMMAND 'LINE' LP LN ')
)
which includes the rubberband, but will not exit the loop. The last break source in VLIDE shows that
(GETPOINT LP '
Select Next Point (ENTER to Finish) : ') is casuing an error. Placing
(SETQ LP (GETVAR 'LASTPOINT'))
outside the loop causes all lines to be drawn from the same point rather than the endpoint of the previous line.

AutoCAD Visual LISP / AutoLISP :: Macro To Open Third Party Program From Toolbar Button

I'm trying to create a macro for a toolbar button to open a third party program. Basically we want to open a custom .exe application from a button on the ACAD toolbar.

AutoCAD Visual LISP / AutoLISP :: Open Excel Program And Count Cells Based On Colour?

Is this something that is possible? Basically I have an excel file with sample data that comes coded (red background for fail, Green for pass) Then we transfer that into halos on a DWG. got a routine to count the halos in a DWG. Now I was thinking it would be nice if it compared the number to the excel file to make sure no mistakes were made when placing the halos.
So as I mentioned I've seen rountines to read data in cells but none to count cells based on colour.

AutoCAD Civil 3D :: Input To VB Program From LISP

I want to use the 'Profile Sample' program supplied with C3D to create an alignment and profile. I am creating the stations and elevations in LISP and want to send them to the 'Profile' program. I have seen in a C# program the use of an Array to send the data. I would like to do the same. eg.
LISP - (profile_sample sta1 elev1 sta2 elev2 sta3 elev3 ...etc)
VB - What is the code to pass this data to the Profile Sample program?
I am VERY new to VB programming. I have trouble giving up LISP.

AutoCad 2D :: Cross-section / Elevation And Detail Cross Reference Labels

I am trying to annotate a floor plan to show the location/orientation of section, elevation and detail drawings. The labels must also indicate the appropriate drawing cross reference. (basically a circle with a arrow, text inside circle showing drawing cross reference). My question is - is there an automated way/library to insert such labels or do I have to create each of them from individual elements and make a block?

AutoCAD Visual LISP / AutoLISP :: Continuous Dimension Lisp That Alternate Its Position

Is there a lisp that will allow me to do a continuous dimension, but will alternate the dimension position from low, high, low and high? If there is no lisp already created, how to create one?
See Continuous dimension attachment for example.
I work at a glass and glazing company and this is how we dimension mullion width and DLO. See typical window dimensioning attachment for window elevation with dimensions.

AutoCAD Visual LISP / AutoLISP :: Add String To Each Item In List Using Lisp

Free Download Lisp Autocad

I have a list ('temp.dwg' 'temp2.dwg') and would like to add the string 'insert text here' into each item in the list resulting in ('insert text heretemp.dwg' 'insert textheretemp2.dwg'). how would i go about doing that using LISP?

AutoCAD Visual LISP / AutoLISP :: Opening Drawings With Default Visual Style Set To 2D Wireframe

Is there a way to programatically set a visual style before a drawing actually opens?
We have some huge models and people seem to forget to change their visual styles back to 2D wireframe before saving and exiting drawings. Some models will crash on some workstations when trying to open in a rendered mode.
I found a lisp with a function that looked to set viewport visual styles. But it does not seem to be supported anymore. --> (vla-put-VisualStyle vport 1)

AutoCAD Visual LISP / AutoLISP :: Write A Lisp Routine That Invoke The Mleader Command

I'm trying to write a lisp routine that, when I invoke the mleader command, osmode is set to 'nearest' & orthomode is set off. I then would like the original settings to be returned.
attached is what I have written so far:-

AutoCAD Visual LISP / AutoLISP :: Visual Effect Settings?

Lisp that switches back on Selection Preview i.e. thickens and highlights lines when you hover over them?I don't know why, but they are always unticking the boxes.

AutoCAD Inventor :: Calculate Section Modulus On Certain Cross Section Of Solid Part?

I am trying to verify the bending strength of a solid part. Need to calculate the section modulus on certain cross section. Don't know how to do it using inventor.

AutoCAD Civil 3D :: Adding Cross Section To Section View Group?

Is it possible to add additional cross sections (sample lines added after views were created) to an existing Section View Group?
C3D 2012 SP3 & C3D 2014 SP1
Win 7 Professional 64 Bit

AutoCad 3D :: Creating Section Plane To Get Cross Section

I am using AutoCAD 2013
My solid model is imported from IGES file format. I'd like to make a plane at specified location (perpendicular from the surface), and I'd like to have a cross sectional geometry cut by that plane. (attached pic.)
1. How can I make a plane following perpendicular line from the surface?
2. How can I export the cross sectional geometry?