8/14/13 AutoLisp Examples - Requested Programs

www.jefferypsanders.com/autolisp_examp.html#GetArea.lsp 1/11

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AutoLisp Example Programs

Most From Users Request

CopyC.lsp - Wendy Diffendall, the Senior CAD Drafter at Facilities Planners + Architects in Harrisburg,

PA. wanted a program to do multiple Copies with preset defaults.

GetArea.lsp - Jamey Westmoreland, a Civil Engineer E.I.T. for Toothman-Orton Engineering Co. in Boise

ID wanted a program to label the accumulated area of selected polyline entities.

GetAcre.lsp - Bruce Stanton wanted a program to label each polyline entity with the area in square feet

and acreage.

DLD.lsp - An anonymous visitor wanted a program to draw a vertical line next to multiple lines of text

during a Dim Leader command. Sounds easy right? Yeesh!

LTR.lsp - Jamey Westmoreland, a Civil Engineer E.I.T. for Toothman-Orton Engineering Co. in Boise ID

wanted a program to select a Line entity, a Text entity, then rotate the text entity based on the angle of theline.

TXTCNT.lsp - An anonymous visitor wanted a program to count how many times each text entity

appeared in a drawing and display the results sorted in a dialog box.

TEXTIN.lsp - A program to read from a text file and write to an AutoCAD drawing.

TEXTOUT.lsp - A program to read from an AutoCAD drawing and write to a text file.

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CopyC.lsp

Wendy Diffendall, the Senior CAD Drafter at Facilities Planners + Architects in Harrisburg, PA. wanted a

program to make the Copy command continuous. Ask for a distance, ask for an angle, set them asdefaults, then Copy Continuously.

[ The Copy, Array and Offset commands were not cutting it!]

;CopyC.lsp - Copy Continuous

(defun C:CC()

;turn off the system echo (setvar "cmdecho" 0)

;set the exit note to be successful(setq ernote "\n ...CC.lsp Complete!")

;get a selection set(if(setq eset(ssget)) (progn

;set the base point [bpt] to be the center of the screen ;and set some variables to nothing (setq bpt (getvar "viewctr") dis nil ang nil ans "" acuDis nil)

;if the get distance function returns something invalid... keeptrying (while(not(setq dis(getdist (getvar "viewctr") "\n Distance: "))))

;if the get angle function returns something invalid... keeptrying (while(not(setq ang(getangle (getvar "viewctr") "\n Angle: "))))

;set the accumulated distance variable to equal the distancevariable

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8/14/13 AutoLisp Examples - Requested Programs

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variable (setq acuDis dis)

;while the user does not want to exit (while(/= ans "X")

;print the current angle and distance to the command line (princ (strcat "\n Angle = " (angtos ang) " Distance = " (rtosdis)))

;find out what the user wants to do....return all answers inuppercase (setq ans

(strcase

(getstring "\n eXit/Angle/Distance/Enter to Copy:X/A/D <enter>: ")

)

)

;if the user presses enter then (if(= ans "") (progn

;copy the entities from the [bpt] to the accumlated distanceaway (command "copy" eset "" bpt (polar bpt ang acuDis))

;set the accumulated distance to be farther from base point ;in other words...if dis = 24" then the 1st copy should be24" from ;the original....the second copy should be 48" from theoriginal ;the [acuDis] variable holds this distance. It gets [dis]added to ;it each loop. (setq acuDis(+ acuDis dis))

) )

;if the user presses X to exit or types the word EXIT then setthe ;[ans] variable to equal "X". The program will exit. (if(= ans "EXIT")(setq ans "X"))

;if the user wants to change the angle. [ang] (if(or(= ans "ANGLE")(= ans "A")) (while(not(setq ang(getangle (getvar "viewctr") "\n Angle:")))) )

;if the user wants to change the distance [dis] ;don't forget to reset the accumulated distance [acuDis] (if(or(= ans "DISTANCE")(= ans "D")) (progn (while(not(setq dis(getdist (getvar "viewctr") "\n Distance:")))) (setq acuDis dis) ) ) ) )

;set the exit message to be unsuccessful if nothing was selected (setq ernote "\n Error - Nothing Selected. "))

;reset the system echo(setvar "cmdecho" 1)

;print the exit message to the command line(princ ernote)

;suppress the final echo(princ)

)

;end of program

Download this file: Click Here!

8/14/13 AutoLisp Examples - Requested Programs

www.jefferypsanders.com/autolisp_examp.html#GetArea.lsp 3/11

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GetArea.lsp

Jamey Westmoreland, a Civil Engineer E.I.T. for Toothman-Orton Engineering Co. in Boise ID wanted aprogram to label the accumulated area of selected polyline entities.

;GetArea.lsp - Total the areas of selected polyline entities.;Warning....This will also return an area for an entity that is notenclosed.

(defun C:GetArea()

;turn off the system echo (setvar "cmdecho" 0)

;set up a variable to hold the accumulated areas (setq myArea 0)

;while the user keeps making a selection (while(setq ent(entsel))

;if an entity was selected and not a point in space (if(car ent) (progn

;let AutoCAD get the area of the object...cheap yet effectiveway out. ;Note: AutoCAD stores the area in the system variable "Area" (command "area" "Object" (car ent))

;print the area to the command line (princ

(strcat "\n Total Area for this Object = " (rtos (getvar"Area")))

)

;accumulate the area if it exist (if (getvar "Area")(setq myArea(+ myArea (getvar "Area")))) ) ) )

;ask for a text insertion point (setq pt1(getpoint "\n Insertion Point: "))

;print the area in the drawing (command "text" pt1 "" "" (strcat "Total Area: " (rtos myArea)))

;print the exit message to the command line (princ "\n ...GetArea.lsp Complete. \n ")

;suppress the last echo (princ)

)

;end of program

Download this file: Click Here!

GetAcre.lsp

Bruce Stanton wanted a program similar to the one above. Except, he wanted to label each polyline entitywith the area in square feet and acreage.

;GetAcre.lsp - Get the area of a selected polyline entity.;Warning....This will also return an area for an entity that is notenclosed.

(defun C:GA()

;turn the system echo off (setvar "cmdecho" 0)

;set up the exit message (setq ernote "\n ...GA.lsp Complete. ")

;set up a variable to hold the area (setq myArea 0)

;select one object (setq ent(entsel))

8/14/13 AutoLisp Examples - Requested Programs

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;if an object was selected and not some point in space (if (car ent) (progn

;get AutoCAD to find the area of the polyline, cheap yet effectiveway out ;Note: AutoCAD stores the information in the system variable"Area" (command "area" "Object" (car ent))

;get the area from the system variable "Area" and convert from ;square inches to square feet (setq myarea (/(getvar "Area")144.0))

;print the sq feet to the command line (princ "\n Total Square Feet : ")(princ (rtos myArea))

;print the acreage to the command line after converting (princ "\n Total Acreage : ")(princ (rtos (/ myArea 43560.0)))

;ask the user for an insertion point for the text ;if the user presses enter then by pass the insertion procedure (if(setq pt1(getpoint "\n Insertion Point: ")) (progn

;print the sq feet on the drawing (command "text" pt1 "" ""

(strcat "Total Square Feet : " (rtos myArea))

)

;move the text starting point and print the acreage on thedrawing (command "text" (polar pt1 (* pi 1.5) (* 1.5 (getvar "textsize"))) "" "" (strcat "Total Acreage : " (rtos (/ myArea 43560.0))) )

) ;close the if progn for point selection

) ;close the if

) ;close the if progn for object selection

;if nothing was selected then change the exit note to beunsuccessful (setq ernote "\n Error - Nothing Selected.")

) ;close the if statement

;print the exit note to the command line (princ ernote)

;reset the system echo variable (setvar "cmdecho" 1)

;suppress the last echo (princ)

)

; End of program

Download this file: Click Here!

DLD.lsp

Visitor wanted a program that would draw a vertical line next to multiple lines of text during a Dim Leader

command. Sounds simple right? Yeesh!

;DLD.lsp - Draw a vertical line next to multiple lines of; text during a dim leader command.

(defun C:DLD()

;turn system echo off(setvar "cmdecho" 0)

;get the start point of the leader line(setq pt1(getpoint "\n Start Point: "))

;setup some variables to be used later ;[tp1] is a temporary point ;[cntr] is a counter;[tht] holds the current text size

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;[tht] holds the current text size(setq tpt pt1 cntr 0 tht (getvar "textsize"))

;unremark the next line and replace YOUR_LAYER_NAME with your layername,;this would be the layer name for your leader lines and arrow head.;If you are using a version of autocad above 14 you might have toreplace;"layer" with "-layer" or perhaps "_layer". You could write a function;to check the version of autocad and decide which to use at that point.

;(command "layer" "set" "YOUR_LAYER_NAME" "")

;loop until the user quits selecting points(while (/= nil(setq tpt(getpoint tpt "\n Next Point: ")))

;if it is the first point the user has selected (if(= cntr 0)

;start the leader command to get an arrow head and the first line ;then use the (command) function to exit the leader command (command "dim1" "lea" pt1 tpt (command))

;else just draw lines (command "line" oldpt tpt "") )

;increment the counter (setq cntr(+ cntr 1))

;get the angle of the last line drawn (setq angl(angle oldpt tpt))

;save the last point drawn (setq oldpt tpt)

)

;find the location for the text using the ;text size times 0.25(setq txpt(polar oldpt angl (* tht 0.25)))

;loop while the user types in something besides <enter>;the T allows spaces in the text string(while(/= "" (setq str(getstring T "\n Text: ")))

;unremark the next line and replace YOUR_LAYER_NAME with your layername. ;this would be the layer name for your text. If you are using aversion ;of autocad above 14 you might have to replace "layer" with or ;perhaps "_layer". You could write a function to check the versionof ;autocad and decide which to use at that point.

;(command "layer" "set" "YOUR_LAYER_NAME" "")

;check the last line angle to decide whether the text ;should be Left or Right Justified. (if(or(< angl (/ pi 0.5))(> angl (* pi 1.5)))

;left justified (command "text" "j" "ML" txpt "" 0 str)

;right justified (command "text" "j" "MR" txpt "" 0 str) )

;unremark the next line and replace YOUR_LAYER_NAME with your layername. ;this would be the layer name for the vertical line next to thetext. ;If you are using a version of autocad above 14 you might have toreplace ;"layer" with "-layer" or perhaps "_layer". You could write afunction ;to check the version of autocad and decide which to use at thatpoint.

;(command "layer" "set" "YOUR_LAYER_NAME" "")

;draw the vertical line (command "line" (polar oldpt (* pi 0.5) (/ tht 2.0)) (polar oldpt (* pi 1.5) (+ (/ tht 2.0)(* tht 0.25))) ""

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8/14/13 AutoLisp Examples - Requested Programs

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)

;reset the text starting location down a line (setq txpt (polar txpt (* pi 1.5) (+ tht(* tht 0.25))))

;reset the location of the next vertical line (setq oldpt(polar oldpt (* pi 1.5) (+ tht(* tht 0.25)))))

;reset the system echo(setvar "cmdecho" 1)

;suppress the last echo(princ)

)

;End of Program

Download this file: Click Here!

LTR.lsp

Jamey Westmoreland, a Civil Engineer E.I.T. for Toothman-Orton Engineering Co. in Boise ID wanted a

program to select a Line entity, a Text entity, then rotate the text entity based on the angle of the line.

;LTR.lsp - select a Line entity and a Text entity then rotate the entity based on line angle.

(defun C:LTR()

;turn off the system echo(setvar "cmdecho" 0)

;display a message on the command line(princ "\n Select LINE with Correct Angle.")

;let the user select one entity(if (setq eset(entsel)) (progn

;get the entity name from the entsel command (setq en(car eset))

;get the DXF group codes of the selected entity (setq enlist(entget en))

;check to see if a LINE was selected (if(= "LINE" (cdr(assoc 0 enlist))) (progn

;display a message on the command line (princ "\n Select TEXT to Match Line Angle.")

;let the user select one entity (if(setq eset2(entsel)) (progn

;get the starting point of the line (setq ept1(cdr(assoc 10 enlist))) ;get the end point of the line (setq ept2(cdr(assoc 11 enlist)))

;get the angle from the end points of the line (setq ang1(angle ept1 ept2))

;get the entity name from the entsel function (setq en2(car eset2))

;get the DXF Group Codes of the entity (setq enlist2(entget en2))

;change the angle in the text entities DXF group codes (setq enlist2(subst (cons 50 ang1)(assoc 50enlist2)enlist2))

;update the text entity (entmod enlist2) )

;if the second entity wasn't selected... (princ "\n Select Text Entity Please. Program Aborted.") )

8/14/13 AutoLisp Examples - Requested Programs

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) )

;if the first entity wasn't a line (princ "\n Enitity selected was not a LINE. Program Aborted.") ) )

;if the first entity wasn't selected (princ "\n Nothing selected. Program Aborted.")

)

;reset the system echo(setvar "cmdecho" 1)

;suppress the last echo(princ)

)

;End of Program

Download this file: Click Here!

TXTCNT.lsp

Visitor wanted a program to count how many times each text entity appeared in a drawing and display the

results sorted in a dialog box.

;TXTCNT.lsp - Count how many times each text entity appears.; Display the results sorted in a dialog box.

(defun C:TXTCNT()

;define a sort routine - Usage: (srt list) - Let's not go into this yet! It works.(defun srt(alist / n)(setq lcup nil rcup nil) (defun cts(a b)(cond((> a b)t)((= a b )t)(t nil))) (foreach n alist (while (and rcup(cts n(car rcup)))(setq lcup(cons(car rcup)lcup)rcup(cdr rcup))) (while (and lcup(cts(car lcup)n))(setq rcup(cons(car lcup)rcup)lcup(cdr lcup))) (setq rcup(cons n rcup)) ) (append(reverse lcup)rcup))

;turn the command echo off(setvar "cmdecho" 0)

;setup a variable to hold the data(setq datalist(list))

;select objects(if (setq eset(ssget)) (progn

;set a counter to the first item in the selection set (setq cntr 0)

;loop through each selected entity (while (< cntr (sslength eset))

;grab the entity's name (setq en(ssname eset cntr))

;grab the DXF group codes of the entity (setq enlist(entget en))

;ignore the entity if it is not a TEXT entity (if(= "TEXT" (cdr(assoc 0 enlist))) (progn

;get the text value from the DXF Group Code (setq str(cdr(assoc 1 enlist)))

;setup a variable to check if the entity exist in the datalist list (setq existing 0)

;loop through the datalist to find out if it is a new entity that needs ;to be added to the list or if it already exist and it's counter needs ;to be incremented (foreach a datalist (if (= (car a) str)(setq existing 1)) )

8/14/13 AutoLisp Examples - Requested Programs

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;if the entity is new then (if (= existing 0)

;do this - Add the item to the datalist along with a counter that starts at 1 (setq datalist(append datalist (list (cons str 1))))

;else it's cntr needs to be incremented (setq datalist (subst (cons str (+ 1 (cdr(assoc str datalist)))) (assoc str datalist) datalist ) ) ) ) ) ;increment the entity counter (setq cntr(+ cntr 1)) ) ))

;setup a variable to hold the data again, this time in a different fashion(setq newList(list))

;rearrange the list(foreach a datalist (setq newList (append newList (list (strcat (substr (strcat (car a) " . . . . . . . . . . . . . . . . . . . . . . . . . . ") 1 50 ) " - " (itoa(cdr a)) ) ) ) ))

;sort the list(setq newList(srt newList))

;put up the dialog box(setq dcl_id (load_dialog "TXTCNT.dcl"))

;see if it is already loaded(if (not (new_dialog "TXTCNT" dcl_id) ) (exit))

;add the data to the list in the dialog box (start_list "datalist")(mapcar ' add_list newList)(end_list)

;if an action event occurs, do this function(action_tile "cancel" "(setq ddiag 1)(done_dialog)")

;display the dialog box(start_dialog)

;if the cancel button was pressed - display message(if (= ddiag 1) (princ "\n \n ...TXTCNT Cancelled. \n ") )

;unload the dialog box(unload_dialog dcl_id)

;turn the command echo back on(setvar "cmdecho" 1)

;supress the last echo(princ)

)

;End of AutoLisp Program

DCL File:

TXTCNT : dialog {label = "TXTCNT - Text Counter By: JefferyPSanders.com"; : row { : list_box { key = "datalist"; multiple_select = "FALSE"; width = 60; } } : boxed_row {

8/14/13 AutoLisp Examples - Requested Programs

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: boxed_row { : button { key = "cancel"; label = " Cancel "; is_default = false; is_cancel = true; } }}

End of DCL File

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Download this DCL file: Click Here!

TextIn.lsp

Read Text From a File, Write Text in the AutoCAD Drawing

;TEXTIN.LSP By: Jeffery P. Sanders ;This program takes any text file and prints it in AutoCAD.

;define program - listing your variable names here ; resets them to nil after the program finishes(defun C:TEXTIN(/ lts ernote inspt filen fil lineone)

;turn echo off

(setvar "cmdecho" 0)

;get ltscale (Note: ltscale should always equal dimscale) (setq lts(getvar "ltscale"))

;set the exit note to display successful (setq ernote "\n....TextIn Complete.")

;get the text insertion point (setq inspt(getpoint "\nInsertion Point: "))

;use dialog box to get file name / the 4 allows ;the user to type in a new file extension ;the "txt" sets the default to be "*.txt" (setq filen (getfiled "Select Text File" "" "txt" 4) )

;if file exist, open file to read (if (setq fil(open filen "r"))

;progn necessary for multiple statements inside if statement (progn

;while the line from text file does not equal nil (while (setq lineone(read-line fil))

;print the text in AutoCAD drawing (command "text" inspt(* lts(getvar "textsize"))0.0 lineone)

;move down one line each loop by resetting the insertion point (setq inspt

;start the polar function i.e. [polar pt angle distance] (polar

;from the insertion point inspt

;set the angle to go down i.e. (270 deg OR pi + pi/2 radians) (* pi 1.5)

;distance down to the next line is (textsize x 1.5) x ltscale (* lts (* 1.5(getvar "textsize")))

) ; close the polar function

) ; close the setq

) ; close the while loop

;close the text file (close fil)

) ; close the if progn statement

;else set the exiting remark as an error (setq ernote (strcat "\nCannot Find File: " filen))

) ; close the if statement

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) ; close the if statement

;turn echo on (setvar "cmdecho" 1)

;print the exiting remark (princ ernote)

(princ "\n ") ; clear command line (princ) ; no echo

) ; close the program

TextOut.lsp

Read Text From an AutoCAD Drawing, Write the Text To a File

;TEXTOUT.LSP By: Jeffery P. Sanders;This program gets text from an AutoCAD drawing and writes it to a text file.

;define program - listing your variable names here ; resets them to nil after the program finishes (defun C:TEXTOUT(/ lts ernote filen fil eset en enlist cntr)

;turn echo off (setvar "cmdecho" 0)

;get ltscale (Note: ltscale should always equal dimscale) (setq lts(getvar "ltscale"))

;set the exit note to successful (setq ernote "\n....TextOut Complete.")

;use dialog box to set file name / the 1 allows ;the user to type in a new file name ;the "txt" sets the default to be "*.txt" (setq filen (getfiled "Type or Select Text File Name" "" "txt" 1) )

;open file to write (if (setq fil(open filen "w"))

;progn necessary for multiple statements inside an if statement (progn

;if ssget returns a valid selection set (if (setq eset(ssget))

;progn necessary for multiple statements inside an if statement (progn

;set the entity counter to zero [the first entity in a set is zero] (setq cntr 0)

;step through each entity in the selection set (while (< cntr (sslength eset))

;get the entity name indexed by cntr (setq en(ssname eset cntr))

;get the DXF group codes for the entity (setq enlist(entget en))

;check the group code 0 to see if entity type = TEXT (if(= "TEXT" (cdr(assoc 0 enlist)))

;progn necessary for multiple statements inside an if statement (progn

;get the text string from the entity's DXF Group Code 1 (setq str(cdr(assoc 1 enlist)))

;print the string to the command line (princ (strcat "\nOutput To File: " str))

;print the string to the file (princ (strcat "\n" str) fil)

) ;close the if progn

) ;close the if statement

;increment the counter to get the next entity (setq cntr(+ cntr 1))

) ;close the while loop

;close the text file (close fil)

) ;close the if progn

;set the exit note as an error

8/14/13 AutoLisp Examples - Requested Programs

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;set the exit note as an error

(setq ernote "\nError - No Entities Selected.")

) ; close the if statement

) ;close the if progn

;set the exit note to be an error (setq ernote (strcat "\nError - Could not create File: " filen))

) ;close the if statement

;turn the command echo back on (setvar "cmdecho" 1)

;print the exit note to the command line (princ ernote)

;clear the command line (princ "\n ")

;supress last echo (princ)

) ;close the program

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