This document provides a list of AutoLISP functions and their descriptions. It includes over 100 AutoLISP functions ranging from basic math functions like +, -, *, / to more complex functions for working with lists, dictionaries, commands and more. The document also lists some related technologies that can interact with AutoLISP like ActiveX, Visual Basic, Delphi and Windows.

1. ®
February 24, 1999

2. © 1999 Autodesk, Inc.
AUTODESK, INC.

3. !#$% '() *+,
-
./0(123456*789:8;=? AUTODESK, INC. @AB-CDEFGHI
JK AUTODESK, INC. LM#$ABNO PQR

4. STU%-
Autodesk, Inc., VWXYZ[ -

5. $] ^Z[_` abcZ[defg-
Autodesk hi
Pjkl Autodesk, Inc. mno( p qorsthiu3D Plan83D Props83D Studio83D Studio MAX83D Studio VIZ8
3DSurfer8ADE8ADI8Advanced Modeling Extension8AEC Authorityvwix 8AEC-X8AME8Animator Pro8Animator Studio8
ATC8AUGI8AutoCAD8AutoCAD Data Extension8AutoCAD Development System8AutoCAD LT8AutoCAD Map8Autodesk8
Autodeskvwix Autodesk Animator8
8 Autodesk MapGuide8 Autodesk University8Autodesk View8 Autodesk WalkThrough8 Autodesk
World8AutoLISP8AutoShade8AutoSketch8AutoSolid8AutoSurf8AutoVision8Biped8bringing information down to earth8CAD
Overlay8 Character Studio8Design Companion8 Drafix8 Education by Design8Generic8 Generic 3D Drafting8Generic CADD8 Generic
Software8 Geodyssey8 Heidi8HOOPS8 Hyperwire8 Inside Track8 Kinetix8MaterialSpec8 Mechanical Desktop8Multimedia Explorer8
NAAUG8Office Series8Opus8PeopleTracker8Physique8Planix8Rastation8Softdesk8Softdeskvwix 8Solution 30008Tech
Talk8Texture Universe8The AEC Authority8The Auto Architect8TinkerTech8WHIP!8WHIP!vwix 8Woodbourne8WorkCenter
( World-Creating Toolkit-
Pjkl Autodesk, Inc. mno( p qorhiu3D on the PC8ACAD8ActiveShapes8Actrix8Advanced User Interface8
AEC Office8 AME Link8 Animation Partner8Animation Player8 Animation Pro Player8 Studio in Every Computer8
A ATLAST8 Auto-
Architect8AutoCAD Architectural Desktop8AutoCAD Architectural Desktop Learning Assistance8AutoCAD Learning Assistance8
AutoCAD LT Learning Assistance8AutoCAD Simulator8AutoCAD SQL Extension8AutoCAD SQL Interface8AutoCDM8Autodesk
Animator Clips8Autodesk Animator Theatre8Autodesk Device Interface8Autodesk PhotoEDIT8Autodesk Software Developer’s Kit8
Autodesk View DwgX8AutoEDM8AutoFlix8AutoLathe8AutoSnap8Built with ObjectARXvwix 8ClearScale8Concept Studio8
Content Explorer8cornerStone Toolkit8Dancing Babyvyzx Design Your World8
8 Design Your Worldvwix DXF8 DWG Linking8
DWG Unplugged8DXF8Exegis8FLI8FLIC8GDX Driver8Generic 3D8Home Series8Kinetixvwix 8MAX DWG8ObjectARX8
ObjectDBX8 Ooga-Chaka8 Photo Landscape8 Photoscape8Plugs and Sockets8PolarSnap8 Powered with Autodesk Technology8 Powered
with Autodesk Technology wix ProConnect8 Landscape8
v 8 Pro QuickCAD8 RadioRay8 SchoolBox8 SketchTools8 Suddenly Everything
Clicks8Supportdesk8The Dancing Baby8Transforms Ideas Into Reality8Visual LISP ( VOLO!-
{|}Z[hi
Microsoft8Visual Basic ( Windows ~Microsoft Corporation sthi€ ActiveX8Windows NT8Windows 95 ( Windows 98
~Microsoft Corporation hi-Delphi ~ Borland International hi- qhi‚8Z[‚hi@ƒ „…†
‡-
GOVERNMENT USE
Use, duplication, or disclosure by the U. S. Government is subject to restrictions as set forth in FAR 12.212 (Commercial Computer
Software-Restricted Rights) and DFAR 267.7202 (Rights in Technical Data and Computer Software), as applicable.

6. AutoLISP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
+ ................................................................................. 17
– ................................................................................. 17
* ................................................................................. 18
/ .................................................................................. 18
= ................................................................................. 19
/= ................................................................................ 19
................................................................................. 20
= ................................................................................ 21
................................................................................. 21
= ............................................................................... 22
~ ................................................................................. 22
1+ ................................................................................ 23
1– ................................................................................ 23
abs ............................................................................... 23
acad_colordlg.............................................................. 24
acad_helpdlg ............................................................... 24
acad_strlsort ................................................................ 25
action_tile.................................................................... 25
add_list........................................................................ 26
alert ............................................................................. 27
alloc............................................................................. 28
and............................................................................... 28
angle............................................................................ 29
angtof .......................................................................... 29
angtos .......................................................................... 30
| iii

7. append ......................................................................... 32
apply............................................................................ 32
arx ............................................................................... 33
arxload ........................................................................ 33
arxunload .................................................................... 34
ascii ............................................................................. 34
assoc............................................................................ 35
atan.............................................................................. 35
atof .............................................................................. 36
atoi .............................................................................. 37
atom ............................................................................ 37
atoms-family ............................................................... 38
autoarxload.................................................................. 39
autoload....................................................................... 40
Boole ........................................................................... 40
boundp ........................................................................ 42
caddr............................................................................ 43
cadr.............................................................................. 43
car................................................................................ 44
cdr ............................................................................... 44
chr ............................................................................... 45
client_data_tile............................................................ 46
close ............................................................................ 46
command..................................................................... 47
cond............................................................................. 48
cons ............................................................................. 49
cos ............................................................................... 50
cvunit .......................................................................... 50
defun ........................................................................... 51
defun-q ........................................................................ 52
defun-q-list-ref ............................................................ 53
defun-q-list-set ............................................................ 54
dictadd ........................................................................ 55
dictnext ....................................................................... 56
dictremove ................................................................. 58
dictrename .................................................................. 58
dictsearch ................................................................... 59
iv |

8. dimx_tile ..................................................................... 60
dimy_tile ..................................................................... 61
distance ....................................................................... 61
distof ........................................................................... 62
done_dialog................................................................. 63
end_image ................................................................... 63
end_list........................................................................ 64
entdel........................................................................... 64
entget........................................................................... 65
entlast .......................................................................... 66
entmake ....................................................................... 67
entmakex .................................................................... 68
entmod ........................................................................ 68
entnext......................................................................... 71
entsel ........................................................................... 71
entupd.......................................................................... 72
eq................................................................................. 73
equal............................................................................ 74
*error*......................................................................... 76
eval.............................................................................. 76
exit .............................................................................. 77
exp............................................................................... 77
expand ......................................................................... 78
expt.............................................................................. 79
fill_image .................................................................... 79
findfile......................................................................... 80
fix ................................................................................ 81
float ............................................................................. 82
foreach ........................................................................ 82
function ....................................................................... 83
gc................................................................................. 84
gcd............................................................................... 84
get_attr ........................................................................ 85
get_tile ........................................................................ 85
getangle ....................................................................... 85
getcfg .......................................................................... 86
getcname .................................................................... 87
| v

9. getcorner ..................................................................... 88
getdist.......................................................................... 88
getenv.......................................................................... 89
getfiled ........................................................................ 90
getint ........................................................................... 92
getkword ..................................................................... 93
getorient ...................................................................... 94
getpoint ....................................................................... 95
getreal.......................................................................... 96
getstring ...................................................................... 97
getvar .......................................................................... 98
graphscr....................................................................... 98
grclear ......................................................................... 98
grdraw ......................................................................... 99
grread .......................................................................... 99
grtext ......................................................................... 102
grvecs ........................................................................ 103
handent...................................................................... 105
help ........................................................................... 105
if ................................................................................ 107
initdia ........................................................................ 107
initget ........................................................................ 108
inters.......................................................................... 111
itoa ............................................................................ 113
lambda....................................................................... 113
last ............................................................................. 114
layoutlist.................................................................... 114
length ........................................................................ 115
list.............................................................................. 115
listp............................................................................ 116
load............................................................................ 117
load_dialog................................................................ 118
log ............................................................................. 119
logand........................................................................ 119
logior ......................................................................... 120
lsh.............................................................................. 120
mapcar....................................................................... 121
vi |

10. max............................................................................ 122
mem .......................................................................... 122
member ..................................................................... 124
menucmd................................................................... 124
menugroup ................................................................ 126
min ............................................................................ 126
minusp....................................................................... 127
mode_tile .................................................................. 127
namedobjdict............................................................. 128
nentsel ....................................................................... 128
nentselp ..................................................................... 130
new_dialog................................................................ 132
not ............................................................................. 132
nth ............................................................................. 133
null ............................................................................ 134
numberp .................................................................... 134
open........................................................................... 135
or ............................................................................... 136
osnap ......................................................................... 137
polar .......................................................................... 138
prin1 .......................................................................... 138
princ .......................................................................... 140
print ........................................................................... 140
progn ......................................................................... 141
prompt ....................................................................... 141
quit ............................................................................ 142
quote.......................................................................... 142
read............................................................................ 143
read-char ................................................................... 144
read-line .................................................................... 145
redraw ....................................................................... 145
regapp........................................................................ 146
rem ............................................................................ 147
repeat......................................................................... 148
reverse ....................................................................... 149
rtos ............................................................................ 149
set .............................................................................. 151
| vii

11. set_tile ....................................................................... 152
setcfg ......................................................................... 152
setenv ........................................................................ 153
setfunhelp.................................................................. 153
setq ............................................................................ 155
setvar ......................................................................... 156
setview ..................................................................... 157
sin.............................................................................. 157
slide_image ............................................................... 158
snvalid ....................................................................... 159
sqrt ............................................................................ 161
ssadd.......................................................................... 161
ssdel .......................................................................... 163
ssget .......................................................................... 163
ssgetfirst ................................................................... 167
sslength ..................................................................... 167
ssmemb ..................................................................... 168
ssname....................................................................... 168
ssnamex .................................................................... 169
sssetfirst ................................................................... 172
startapp...................................................................... 174
start_dialog................................................................ 175
start_image................................................................ 175
start_list..................................................................... 176
strcase........................................................................ 176
strcat.......................................................................... 177
strlen.......................................................................... 178
subst .......................................................................... 178
substr ......................................................................... 179
tablet.......................................................................... 180
tblnext ....................................................................... 181
tblobjname ................................................................ 183
tblsearch .................................................................... 184
term_dialog ............................................................... 184
terpri.......................................................................... 185
textbox ...................................................................... 185
textpage ..................................................................... 186
viii |

12. textscr........................................................................ 186
trace........................................................................... 186
trans........................................................................... 188
type............................................................................ 190
unload_dialog............................................................ 192
untrace....................................................................... 192
vector_image............................................................. 193
ver ............................................................................. 194
vl-acad-defun ............................................................ 195
vl-acad-undefun ........................................................ 195
vl-arx-import ............................................................. 195
vl-bb-ref .................................................................... 197
vl-bb-set .................................................................... 197
vl-catch-all-apply ...................................................... 198
vl-catch-all-error-message ........................................ 199
vl-catch-all-error-p.................................................... 200
vl-cmdf...................................................................... 200
vl-consp..................................................................... 202
vl-directory-files ....................................................... 203
vl-doc-export............................................................. 203
vl-doc-import ............................................................ 204
vl-doc-ref .................................................................. 205
vl-doc-set .................................................................. 205
vl-every .................................................................... 206
vl-exit-with-error ...................................................... 207
vl-exit-with-value...................................................... 208
vl-file-copy ............................................................... 209
vl-file-delete.............................................................. 210
vl-file-directory-p...................................................... 210
vl-file-rename ........................................................... 211
vl-file-size ................................................................. 212
vl-file-systime ........................................................... 212
vl-filename-base ....................................................... 213
vl-filename-directory ............................................... 214
vl-filename-extension ............................................... 214
vl-filename-mktemp.................................................. 215
vl-get-resource .......................................................... 216
| ix

13. vl-list* ....................................................................... 217
vl-list-string ........................................................... 217
vl-list-exported-functions.......................................... 218
vl-list-length.............................................................. 219
vl-list-loaded-vlx....................................................... 219
vl-load-all.................................................................. 220
vl-load-com ............................................................... 221
vl-load-reactors ......................................................... 221
vl-member-if ............................................................. 222
vl-member-if-not....................................................... 223
vl-position ................................................................. 223
vl-prin1-to-string ...................................................... 224
vl-princ-to-string ...................................................... 225
vl-propagate .............................................................. 225
vl-registry-delete ....................................................... 226
vl-registry-descendents ............................................. 226
vl-registry-read.......................................................... 227
vl-registry-write ........................................................ 228
vl-remove ................................................................. 228
vl-remove-if ............................................................. 229
vl-remove-if-not........................................................ 230
vl-some ..................................................................... 230
vl-sort ........................................................................ 231
vl-sort-i...................................................................... 232
vl-string-list ........................................................... 233
vl-string-elt................................................................ 234
vl-string-left-trim ...................................................... 234
vl-string-mismatch .................................................... 235
vl-string-position....................................................... 236
vl-string-right-trim .................................................... 237
vl-string-search ......................................................... 237
vl-string-subst ........................................................... 238
vl-string-translate ...................................................... 239
vl-string-trim ............................................................. 239
vl-symbol-name ....................................................... 240
vl-symbol-value ....................................................... 241
vl-symbolp ................................................................ 241
x |

14. vl-unload-vlx............................................................. 242
vl-vbaload ................................................................. 243
vl-vbarun ................................................................... 243
vl-vlx-loaded-p.......................................................... 244
vlax-3D-point............................................................ 244
vlax-add-cmd ............................................................ 245
vlax-create-object...................................................... 247
vlax-curve-getArea ................................................... 247
vlax-curve-getDistAtParam ...................................... 248
vlax-curve-getDistAtPoint ........................................ 249
vlax-curve-getEndParam .......................................... 250
vlax-curve-getEndPoint ............................................ 251
vlax-curve-getParamAtDist ...................................... 251
vlax-curve-getParamAtPoint .................................... 252
vlax-curve-getPointAtDist ........................................ 252
vlax-curve-getPointAtParam .................................... 253
vlax-curve-getStartParam ......................................... 254
vlax-curve-getStartPoint ........................................... 254
vlax-curve-isClosed .................................................. 255
vlax-curve-isPeriodic ............................................... 255
vlax-curve-isPlanar ................................................... 256
vlax-curve-getClosestPointTo .................................. 257
vlax-curve-getClosestPointToProjection .................. 258
vlax-curve-getFirstDeriv........................................... 258
vlax-curve-getSecondDeriv ...................................... 259
vlax-dump-object ...................................................... 260
vlax-ename-vla-object ........................................... 261
vlax-erased-p............................................................. 261
vlax-for...................................................................... 262
vlax-get-acad-object.................................................. 262
vlax-get-object .......................................................... 263
vlax-get-or-create-object........................................... 263
vlax-get-property ...................................................... 264
vlax-import-type-library ........................................... 265
vlax-invoke-method .................................................. 267
vlax-ldata-delete........................................................ 268
vlax-ldata-get ............................................................ 268
| xi

15. vlax-ldata-list ............................................................ 271
vlax-ldata-put ............................................................ 271
vlax-ldata-test............................................................ 272
vlax-make-safearray.................................................. 273
vlax-make-variant ..................................................... 275
vlax-map-collection .................................................. 277
vlax-method-applicable-p ......................................... 278
vlax-object-released-p............................................... 279
vlax-product-key ....................................................... 280
vlax-property-available-p.......................................... 280
vlax-put-property ...................................................... 281
vlax-read-enabled-p .................................................. 282
vlax-release-object .................................................... 282
vlax-remove-cmd ..................................................... 282
vlax-safearray-fill...................................................... 283
vlax-safearray-get-dim.............................................. 285
vlax-safearray-get-element ....................................... 285
vlax-safearray-get-l-bound........................................ 286
vlax-safearray-get-u-bound....................................... 287
vlax-safearray-put-element ....................................... 288
vlax-safearray-type ................................................... 289
vlax-safearray-list ................................................... 290
vlax-tmatrix............................................................... 291
vlax-typeinfo-available-p.......................................... 292
vlax-variant-change-type .......................................... 293
vlax-variant-type ....................................................... 294
vlax-variant-value ..................................................... 296
vlax-vla-object-ename ............................................ 297
vlax-write-enabled-p ................................................. 297
vlisp-compile ............................................................ 297
vlr-acdb-reactor......................................................... 299
vlr-add ...................................................................... 300
vlr-added-p................................................................ 300
vlr-beep-reaction ....................................................... 301
vlr-command-reactor ............................................... 301
vlr-current-reaction-name ......................................... 302
vlr-data ...................................................................... 302
xii |

16. vlr-data-set ................................................................ 303
vlr-deepclone-reactor ............................................... 304
vlr-docmanager-reactor ............................................ 305
vlr-dwg-reactor ........................................................ 307
vlr-dxf-reactor .......................................................... 309
vlr-editor-reactor ...................................................... 310
vlr-insert-reactor ...................................................... 313
vlr-linker-reactor ....................................................... 315
vlr-lisp-reactor ......................................................... 316
vlr-miscellaneous-reactor ......................................... 317
vlr-mouse-reactor ..................................................... 319
vlr-notification ......................................................... 320
vlr-object-reactor ..................................................... 320
vlr-owner-add............................................................ 323
vlr-owner-remove .................................................... 323
vlr-owners ................................................................. 324
vlr-pers ..................................................................... 324
vlr-pers-list ............................................................... 325
vlr-pers-p .................................................................. 325
vlr-pers-release ......................................................... 326
vlr-reaction-names ................................................... 326
vlr-reaction-set ......................................................... 327
vlr-reactions ............................................................. 328
vlr-reactors ................................................................ 328
vlr-remove ................................................................ 329
vlr-remove-all .......................................................... 330
vlr-set-notification ................................................... 331
vlr-sysvar-reactor ..................................................... 332
vlr-toolbar-reactor .................................................... 333
vlr-trace-reaction....................................................... 334
vlr-type ..................................................................... 335
vlr-types ................................................................... 336
vlr-undo-reactor ....................................................... 337
vlr-wblock-reactor ................................................... 339
vlr-window-reactor .................................................. 341
vlr-xref-reactor ......................................................... 343
vports ........................................................................ 349
| xiii

17. wcmatch .................................................................... 350
while.......................................................................... 353
write-char .................................................................. 353
write-line ................................................................... 354
xdroom ...................................................................... 355
xdsize ........................................................................ 355
zerop.......................................................................... 356
A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
3dsin.......................................................................... 360
3dsout........................................................................ 361
align .......................................................................... 362
cal.............................................................................. 362
fog ............................................................................. 363
light ........................................................................... 363
lsedit.......................................................................... 372
lslib............................................................................ 373
lsnew ......................................................................... 377
matlib ........................................................................ 377
mirror3d .................................................................... 378
psdrag........................................................................ 379
psfill .......................................................................... 379
psin............................................................................ 380
render ....................................................................... 381
renderupdate.............................................................. 386
replay ....................................................................... 386
rmat ........................................................................... 387
rotate3d ..................................................................... 402
rpref .......................................................................... 403
saveimg ..................................................................... 406
scene ......................................................................... 407
setuv .......................................................................... 410
showmat ................................................................... 412
solprof ....................................................................... 413
stats .......................................................................... 413
xiv |

18. AutoLISP

19. AutoCAD AutoLISP !T
'()*+ ,-.

20. /012
!#$%'()*+
,-.

21. /012
+345#65789:;=?@A
BCD!EFGH2IJ#K9LMN OP
QGRS
15

23. =
/

24. ?

25. @AB$
(foo string [number ...])
DB$
CB$ EF

26. GHI$ (...) J

27. number

28. !

29. #$%'()

30. *

31. + ,'-

32. %

33. ./)
01

34. ,'-

35. %
23
45678 9 Visual LISP
:AutoLISP

36. ;/%
16 | AutoLISP

37. +
34

38. (+ [number number] ...)
number

39. number
0

40. ! number # 0
$%
(+ 1 2) 3
(+ 1 2 3 4.5) 10.5
(+ 1 2 3 4.0) 10.0
–
345, -67

41. 8 2
(– [number number] ...)
number
'

42. number ()*# +,
-,. /01

43. 2 number 0
-

44. 2 -number # 0
+ | 17

45. (- 50 40) 10
(- 50 40.0) 10.0
(- 50 40.0 2.5) 7.5
(- 8) -8
*
45

46. 1
(* [number number] ...)
number

47. number
1
! number #
0
(* 2 3) 6
(* 2 3.0) 6.0
(* 2 3 4.0) 24.0
(* 3 -4.5) -13.5
(* 3) 3
/
4$56( $,78 19
3
(/ [number number] ...)
number
$ number %' ( )*+$
$,(- ./0 1
/02.3 number
$, 1
! number #
0
18 | AutoLISP

48. (/ 100 2) 50
(/ 100 2.0) 50.0
(/ 100 20.0 2) 2.5
(/ 100 20 2) 2
(/ 4) 4
=
!#$%
(= numstr [numstr] ...)
numstr

49. T

50. nil

51. T
(= 4 4.0) T
(= 20 388) nil
(= 2.4 2.4 2.4) T
(= 499 499 500) nil
(= me me) T
(= me you) nil
eq equal
/=
!'#$% '
(/= numstr [numstr] ...)
numstr
= | 19

53. T nil
T
/= !# LISP $%'()*+ , -./
012
3

54. 45 T6- AutoLISP 0,

55. /= 7 T 89:;=
=
(/= 10 20) T
(/= you you) nil
(/= 5.43 5.44) T
(/= 10 20 10 20 20) nil
(/= 10 20 10 20) T
-?@A=0BC./0

56. DEFGHI

57. J
K /= L M N T
XUGY T 3UGHVW T nil
( numstr [numstr] ...)
numstr OPQRSO
T 3UGHVW T nil
T
=
( 10 20) T
( b c) T
( 357 33.2) nil
( 2 3 88) T
( 2 3 4 4) nil
20 | AutoLISP

58. =
# $

59. T
nil
(= numstr [numstr] ...)
numstr

60. T
nil

61. =
T
!
(= 10 20) T
(= b b) T
(= 357 33.2) nil
(= 2 9 9) T
(= 2 9 4 5) nil
#$

62. T
nil
( numstr [numstr] ...)
numstr

63. T
nil

64. T
!
( 120 17) T
( c b) T
( 3.5 1792) nil
( 77 4 2) T
( 77 4 4) nil
= | 21

65. =
' +

66. T

67. nil
(= numstr [numstr] ...)
numstr

68. T

69. nil
=

70. T
!
(= 120 17) T
(= c c) T
(= 3.5 1792) nil
(= 77 4 4) T
(= 77 4 9) nil
~
'$%+

71. $%'( 1 )*+
(~ int)
int #

72. $%'( 1 )*+
!
(~ 3) -4
(~ 100) -101
(~ -4) 3
22 | AutoLISP

73. 1+
1
1
(1+ number)
number
1

74. (1+ 5) 6
(1+ -17.5) -16.5
1–
1 1
(1– number)
number
1

75. (1- 5) 4
(1- -17.5) -18.5
abs

76. (abs number)
1+ | 23

77. number

78. (abs 100) 100
(abs -100) 100
(abs -99.25) 99.25
acad_colordlg
NHOP AutoCAD !+A
#$
(acad_colordlg colornum [flag])
colornum
0–256 0 256 !
#$%!'(
flag )*+ flag ,- nil./012/032456
7 flag 89,-: nil
;*/012/032
45
colornum - 0 =' BYBLOCK- 256 =' BYLAYER
?@+A!'()B?CD
#$; nil
EF'(GH?+AIJ!)BK+; L-%!M
(acad_colordlg 3)
acad_helpdlg
QRSTUVWX
(acad_helpdlg helpfile topic)
24 | AutoLISP

80. help

81. AutoCAD
!

82. #$% help
acad_strlsort
n ASCII H*ST)[*+,-BC()
(acad _strlsort list)
list '()

83. *+,-
./0
()1

84. 23*+,-45 list 6789-:;=?

85. @ABC
()acad_strlsort ./ nil
DE
FGHI6JKLM7N

86. NO

87. PQ*+,-R*ST)BC()U
VWU(setq mos ’(Jan Feb Mar Apr May Jun Jul Aug
Sep Oct Nov Dec))
(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec)
VWU(acad_strlsort mos)
(Apr Aug Dec Feb Jan Jul Jun Mar May Nov Oct Sep)
action_tile
‰6[]`aX 67YZ-kltŠe[]K‹Kf7`aŒŽC YZ-
kl
(action_tile key action-expression)
X

88. YZI[]

89. ^_YZ^_YZ new_dialog
action_tile
X : `a

90. action bcdeX fgbc

91. hiFj YZ-klm
nopqr $value st`a

92. uv0dwx

93. value bcj opqr $key st`
a

94. !y*opqr $data st`a

95. z {t |d}4~'fD

96. |m
n client_data_tile jopqr $reason st`a

97. /€‚45 `
aƒ„R…

98. †mnopqr $x $y st`a

99. ƒ„‡ˆ
acad_strlsort | 25

100. key

101. key
action- !
# $% '(
expression
)* + action_tile , -./01 AutoLISP Command ,
23%
T
45
67 edit1 89:;=1?@A:;BCDE action_tile , 01-
'(FG$%H
(action_tile edit1 (setq ns $value))
I J Visual LISP - KLM%N DCL O
add_list
+Rno Cp ]-qb89erst- 89
(add_list string)
+P1 add_list , QRSTU01 start_list , VWXYZ[] ^_
start_list , - operation .` string abcdR]-e
fg] Rh
string i
23%
67jk=23bcd]- lm=23 nil
26 | AutoLISP

102. DCL

103. longlist
!# llist $%'

104. (
(setq llist ’(first line second line third line))
(start_list longlist)
(mapcar ’add_list llist)
(end_list)
)*'+,'-./ 01234 2nd line(
(start_list longlist 1 0)
(add_list 2nd line)
(end_list)
567 start_list 8 end_list 9:(
alert
;?

105. ;C_?DE
(alert string)
6:
string ;=?

106. 012(
@AB
nil
=?

107. ;CDEF
(alert That function is not available.)
GH= string 6:

108. IJ4/1KL=?

109. ;M/01F
(alert That functionnis not available.)
NO ?

110. PQ; DE /:LRS/ TUVWXPIJ YZ[
8]^(
alert | 27

111. alloc
#$GHI!J expand ) KB
(alloc n-alloc)
n-alloc

112. usubr Cons

113. ! n-alloc

114. #$
%
_$ (alloc 100)
1000
' ( expand )
and
,-

115. LMN (AND) OP4/
(and [expr ...])
expr *+,-
./*012,-

116. 3 4/5 nil 6) 789:1;

117. 3 nil =
T./?@ AB and C T
%
DEF(setq a 103 b nil c string)
string
DEF(and 1.4 a c)
T
DEF(and 1.4 a b c)
nil
28 | AutoLISP

118. angle

119. q rst34 UCS u X rsv
(angle pt1 pt2)
pt1
pt2

120. X

121. ! #$
%'( )*+,-./012./34 X
56
789(angle ’(1.0 1.0) ’(1.0 4.0))
1.5708
789(angle ’(5.0 1.33) ’(2.4 1.33))
3.14159
: ; Visual LISP =?@
angtof
+wxEFG?

122. y z{ |}B
(angtof string [units])
string unit %ABCDEFG string HIJKL
M angtof N OP% unit QRSTUVWXEF
G string ABYZ 4 angtos N [$AB
]^Z J AutoCAD _`abcdAB
units ef%EFGAB
g h i4
AutoCAD jklm AUNITS _`h ni#$opg
angle | 29

123. AUNITS

124. units
0
1 //
2
3
4 !#
$%
' () * $%+,- ./
01$% nil
angtof 2 angtos 3+456 angtos 78
+,9:;
= angtof ?@ angtof ABC$%+,DE
FGHIJ
K unit LMN
OP
QR(angtof 45.0000)
0.785398
QR(angtof 45.0000 3)
1.0177
S T angtos
angtos
+,U#
X
YZ(9:;
(angtos angle [unit [precision]])
angle U#VWX
-
30 | AutoLISP

125. unit

126. unit
AUNITS
units
0 !#$
1 /%/
2 '%
3 (
4 )*
precision + ,-. /0 1

127. 2
AUPREC
angtos 34 mode5precision 6 AutoCAD UNITMODE 789:
; DIMZIN = angle ?@ABCDEF,-
angtos GHI angle JKLMNOP ?@QRSTA 0 U 2π
( QV W

128. XY)* unit 4$ UNITMODE Z[ ,-
]

129. BCD

130. UNITMODE 0]

131. BCD^Z_`ab c N 45d E$
def

132. UNITMODE 1]

133. BCD^ghZ_`ab c N45dE$
,-

134. iAjK,-klBCDmn,- nil
oc
pq(angtos 0.785398 0 4)
45.0000
pq(angtos -0.785398 0 4)
315.0000
pq(angtos -0.785398 4)
S 45d E
r angtos stuvr w ANGBASE hex $ yz
{y2|}6~ ANGBASE
€ angtof Visual LISP ^ ‚BCD?@ƒ
angtos | 31

135. append
01234

136. 4
(append [list ...])
list

137. nil
(append ’(a b) ’(c d))
(A B C D)
(append ’((a)(b)) ’((c)(d)))
((A) (B) (C) (D))
apply
0 5678
(apply ’function list)
’function ! defun # lambda $%'
list () *+ , nil
-./
(apply ’+ ’(1 2 3))
6
(apply ’strcat ’(a b c))
abc
32 | AutoLISP

138. arx
hdCD% ObjectARX
(arx)
ObjectARX

139. (arx)
(acadapp.arx acmted.arx oleaprot.arx)
arxload arxunload
arxload
CD ObjectARX
(arxload application [onfailure])
application !!#$%'()*+,-

140. %./+
012

141. %34 .arx
5678 ObjectARX +,-

142. %9 :;

143. =
AutoCAD ?@

144. AB
onfailure CDEFGH,-%
IJ
KLMNO KLMNP78Q onfailure
% RO S %TUVW
KLXYCDZ[]CD% ObjectARX arxload ^_`ZaTUV
Wb arxload CDZ[ cd +0e arx fgCD% ARX
arx | 33

145. AutoCAD

146. geomcal.arx
(arxload c:/program files/ACAD2000/geomcal.arx)
c:/program files/acad2000/geomcal.arx
arxunload
arxunload
1 ObjectARX ABC
(arxunload application [onfailure])
application

147. !# arxload

148. $%
'

149. ()$*+,
'-

150. .arx ./0
onfailure 1 2345%

151. 678
9:;
=?@9:ABC'=D?EFGHI onfailure E9:J

152. ;EK@9:LA

153. MNOP
QRDS1 TU

154. ObjectARX ABCVW+XYEObjectARX AB
CZTU

155. arxload
ascii
-

156. ]^_`ab ASCII c.9:
(ascii string)
string [
34 | AutoLISP

157. (ascii A)
65
(ascii a)
97
(ascii BIG)
66
assoc
#
$%!
(assoc element alist)

158. element
alist
! nil
(setq al ’((name box) (width 3) (size 4.7263) (depth 5)))
((NAME BOX) (WIDTH 3) (SIZE 4.7263) (DEPTH 5))
(assoc ’size al)
(SIZE 4.7263)
(assoc ’weight al)
nil
atan
$% '() *+,-./01
(atan num1 [num2])
assoc | 35

159. num1
num2

160. num1 num1

161. num1 num2 num1/num2
num2 0 ! 1.570796 #+90 ! -90 $%
'( num1 )*+, −π/2 - +π/2 #$
./
012(atan 1)
0.785398
012(atan 1.0)
0.785398
012(atan 0.5)
0.463648
012(atan 1.0)
0.785398
012(atan -1.0)
-0.785398
012(atan 2.0 3.0)
0.588003
012(atan 2.0 -3.0)
2.55359
012(atan 1.0 0.0)
1.5708
atof
:7894;6
(atof string)
string 3456 789
6
36 | AutoLISP

162. (atof 97.1)
97.1
(atof 3)
3.0
(atof 3.9)
3.9
atoi
789
:

163. (atoi string)
string

164. (atoi 97)
97
(atoi 3)
3
(atoi 3.9)
3
itoa
atom
;89==!
(atom item)
item AutoLISP
LISP atom !#
$%'()*+,-./0
1234
5+6
atoi | 37

165. item

166. nil

167. T

168. (setq a ’(x y z))
(X Y Z)
(setq b ’a)
A
(atom ’a)
T
(atom a)
nil
(atom ’b)
T
(atom b)
T
(atom ’(a b c))
nil
atoms-family
?78@'9)*ABCD
(atoms-family format [symlist])
format

169. 0 ! 1
#$%' atoms-family ( )*+
,-
0 . /- )*+
1 .0)1 /- )*+
symlist $%'$2345)*+0)1
)* '6 symlist
atoms-family 78'9')*
:;=
'9)* nil
38 | AutoLISP

170. (atoms-family 0)
(BNS_PRE_SEL FITSTR2LEN C:AI_SPHERE ALERT DEFUN C:BEXTEND REM_GROUP
B_RESTORE_SYSVARS BNS_CMD_EXIT LISPED FNSPLITL...

171. CARCDR XYZ

172. (atoms-family 1 ’(CAR CDR XYZ))
(CAR CDR nil)
! #

173. $

174. XYZ %'
autoarxload
fg45670FG ObjectARX 9:;#
(autoarxload filename cmdlist)
()*+,- cmdlist ./#0* 1234567 filename ./8
# ObjectARX 9:;=?,- '
@A*%(8BCD# E filename FGH3AutoCAD (IJ
K LMN*OPQRST:U'
./
filename 8( VN IJ cmdlist ./D#0 LW6
7# .arx BC#

175. '@AXYZ[3AutoCAD (]
^BC_`Z[DabKBC'
cmdlist

176. '
c
nil
d C:APP1C:APP2 C:APP3 e/67 bonusapp.arx BC
(autoarxload BONUSAPP ’(APP1 APP2 APP3))
autoarxload | 39

177. autoload
c
[
DE AutoLISP

178. 5
(autoload filename cmdlist)
cmdlist

179. filename

180. AutoLISP !
filename
#$% cmdlist '

181. ()

182. .lsp *+

183. ,-.!/012345AutoCAD 6
7*+8934':;*+!
cmdlist ,-.=!
?@
nil
/0 AB
*+'

184. C filename DEFAutoCAD %
(G# HIJKLMNO!
PQ
#$% APP1RAPP2 S APP3 (T AutoLISP
bounsapp.lspU
(autoload BONUSAPP ’(APP1 APP2 APP3))
Boole
d e

185. fghijkb
(Boole operator int1 [int2 ...])
operator 0 V 15 W

186. X Y= 16 Z[

187. ]^_`ab !
40 | AutoLISP

188. int1, int2...
Boole

189. !#$%'()*+

190. ,-
UV !
Int1 Int2 EF#
0 0 8
0 1 4
1 0 2
1 1 1
int1 .

191. #/
int2 01#23456 !78

192. 9 :;
# = 0 ? 1@ABC !7@

193. 9D01EF#GHIJ
21EF# !

194. KL#M 1 NOL#M 0 operator
8PA QRCSTUV:; AND$/( OR$?( XOR$X?( NOT
W W
$Y(
Boole #
:; :; #M 1 ]^
1 AND _`ab#cM 1
6 XOR _`ab#de

195. `M 1
7 OR e

196. `?_`ab#M 1
8 NOR _`ab#cM 0$1fg(
Z[
Boole | 41

197. 12

198. 5
(AND)
(Boole 1 12 5)
4
6

199. 5
(XOR)
(Boole 6 6 5)
3
operator
!
#$%
'() *+*,
operator - 4+./0#1 int2
23 1+4 int1
5623 0 7+8,293
1+:;
(Boole 4 3 14)
12
boundp
]^=-WABC3_J
(boundp sym)
sym =)
?
*, sym @ABC3D nil +EF? T)*,#BC sym GABC
3 nil+HF? nil)*, sym -IJKLM
=+NOPQRG+STB
3 nil)
(setq a 2 b nil)
nil
(boundp ’a)
T
(boundp ’b)
nil
U atoms-family F VLIJ=
-WX1+YGZOPQRE=)
[ atoms-family F)
42 | AutoLISP

200. caddr
!
(caddr list)
AutoLISP caddr

201. Z
list
!
list
#$%' ()
* ! nil
+,
-./(setq pt3 ’(5.25 1.0 3.0))
(5.25 1.0 3.0)
-./(caddr pt3)
3.0
-./(caddr ’(5.25 1.0))
nil
01 Visual LISP 23
cadr
!4
(cadr list)
AutoLISP cadr

202. 4'
Y 5'
4
list
!
list 4#$%' 678* ! nil
caddr | 43

203. (setq pt2 ’(5.25 1.0))
(5.25 1.0)
(cadr pt2)
1.0
(cadr ’(4.0))
nil
(cadr ’(5.25 1.0 3.0))
1.0
Visual LISP

204. car
(car list)
list
list
nil
(car ’(a b c))
A
(car ’((a b) c))
(A B)
(car ’())
nil
Visual LISP

205. cdr
!
(cdr list)
44 | AutoLISP

206. list
list

207. ! # $%
' nil
( list )*+ ,cdr *+
-

208. ./)0 12
3
4
567(cdr ’(a b c))
(B C)
567(cdr ’((a b) c))
(C)
567(cdr ’())
nil
567(cdr ’(a . b))
B
567(cdr ’(1 . Text))
Text
Visual LISP 8*
chr
IJ ? ASCII =9 KLM;NOP??@
(chr integer)
list 9 :
; ASCII =$ integer ??@ #9 /A 1-255 BCD
E#/FGH
4
567(chr 65)
A
chr | 45

209. (chr 66)
B
(chr 97)
a
client_data_tile
dh iBCjkl
mHn
(client_data_tile key clientdata)
key

210. clientdata key
!

211. #$%'(
)*+, $data -./
01
nil
close
HIBCP345
(close file-desc)
file-desc 2 open ( 345
6785
9:
01
; file-desc =close ( 0 nil ?@A0BCDEFG
close ( HI5
JK5
9:LM=N-OPQR=2SHI
5
TUVWXP345
LM=YZ[5
]^
_`ab)785
somefile.tx c Lde1fg-. ct
46 | AutoLISP

212. (setq fil SOMEFILE.TXT)
(setq x (open fil r) ct 0)
(while (read-line x)
(setq ct (1+ ct))
)
(close x)
command
† AutoCAD
(command [arguments] ...)
arguments AutoCAD

213. command
! #

214. $ () %'
(') ENTER '

215. *+ ,- command ./0') ESC
'123456 AutoCAD

216. command
789 :;= AutoCAD ?@%

217. AB@
C DE FG9 HI B@CJKFL9 HI
B@CLK

218. MNO @%P AutoCAD QRST D

219. UVWX Visual LISP YZ- command
[]*^_`a
AutoCAD Y

220. WX b-cd)eO[fghYiajklX
(nil) AutoCAD 7mnd)opqr AutoCAD ]?@%

221. O12s
tuvwx y^z{

222. jk|
nil
2}
P}~7€ pt1 E pt2 T‚ƒ (1,1) E (1,5)„w,- command
LINE ]71G9|= AutoCAD

223. …(setq pt1 ’(1 1) pt2 ’(1 5))
(1 5)
command | 47

224. (command line pt1 pt2 )
nil

225. AutoCAD SKETCH !# AutoLISP
command $%'()* +,-#$%' SCRIPT ./0123
#4 AutoLISP 5678+
9:,-# acad.lsp ; MNL =%' command $?# defun @AB
%C'+D' S::STARTUP $ E#FGHIJKLMNOPQRSK
+
TUQRVNW *TX AutoCAD Y, BREAK TRIM Z
[]
^ *' entsel $_`@abcdefLgW *TXhVN
(
ijkl[ m Visual LISP %nop
qr AutoCAD
s+
,-tuvw CMDECHO Y[xy setvar getvar $zZ{|g 0xy
command $OP o!}# P%~+
€ m  % vl-cmdf $ Visual LISP %n ]cs+
cond
—˜=™—’“‘-$
(cond [(test result ...) ...])
cond $ [gH‚@+.ƒ„6T… *@ †‡ˆ
‰%Š ‹Œ‡!1 nil g+4$ŽT48‰@AB†‡+
‹Œ‡
{OP‘-’“@AB%78 *@AB‡+,-l@%?” *@AB
Y• result !z#Z‹Œ test ‡+,-– cond ‹Œ nil+
48 | AutoLISP

226. cond

227. (cond
((minusp a) (- a))
(t a)
)
–10 10
cond case ! #$% T '(#)*+,-
test ./01 2#)34 5 s 567 8 9:; =
? @AB?= s 8 Y C y DE 1 s 8 N C n DE 0F
DE nil
(cond
((= s Y) 1)
((= s y) 1)
((= s N) 0)
((= s n) 0)
(t nil)
)
cons
_. `aIJ#)NOCbc#)
(cons new-first-element list-or-atom)
G
new-first- HIJK.LM NO?NOPQC.
element
list-or-atom .CPQ
DE
DER list-or-atom S!TU list-or-atom . cons DE.V
@ new-first-element DE.5 W#X list-or-atom PQ cons D
EYZ new-first-element [ list-or-atom
]^(cons ’a ’(b c d))
(A B C D)
]^(cons ’(a) ’(b c d))
((A) B C D)
cons | 49

228. (cons ’a 2)
(A . 2)
Visual LISP

229. cos
(cos ang)
ang
ang
(cos 0.0)
1.0
(cos pi)
-1.0
cvunit
89:;+,=?@ !
(cvunit value from-unit to-unit)
value ! #$%%#
from-unit value '()* +,
to-unit value -)* +,
from-unit . to-unit /01 acad.unt 23 45+,67
50 | AutoLISP

231. acad.unt
!
#$
nil
%!
'((cvunit 1 minute second)
60.0
'((cvunit 1 gallon furlong)
nil
'((cvunit 1.0 inch cm)
2.54
'((cvunit 1.0 acre sq yard)
4840.0
'((cvunit ’(1.0 2.5) ft in)
(12.0 30.0)
'((cvunit ’(1 2 3) ft in)
(12.0 24.0 36.0)
)* +,-%
./ 01
2,3 4 1.0
5

232. 67 89
:4;
=?!@A
BCDEFGHI.JKLMNO
PQRS
TUQF
@9MN
+VW0XYZ
[] Visual LISP
^ _
defun
ST:4
(defun sym ([arguments] [/ variables...]) expr...)
4
sym :4`
arguments :4a+
b/4`
/ variables :4cd
0efghZ`
fghZ`ij
kl#m0fg`ino
,Wpkl
#q

233. 04
rno
Ustuvwx0
yz
{|
defun | 51

234. expr

235. AutoLISP
!#$%'(
)*+,- !AutoLISP %./012 !3456
7 !
89:
;=
:
?@ A BCD EF sym :GHIJKL *MNOC
D PQ% RSCD TU*M V
W% atoms-
family
HX
(defun myfunc (x y) ...)
(defun myfunc (/ a b) ...)

236. (defun myfunc (x / temp) ...)

237. (defun myfunc () ...)

238. W Y Visual LISP Z [T ]^
defun-q
B *MF
(defun-q sym ([arguments] [/ variables...]) expr...)
_``1abcdef AutoLISP ghi j3kD AlE
defun-q
67mn op*MF
qr st% defun-qGu%v
bcdwxy AutoLISP efZ defun z2v/O
sym a{
arguments Zn |
52 | AutoLISP

239. / variables

240. !# $%'()*+,
-. /0
expr 12 3412 56 7 AutoLISP 89:
!;=5?
@AB# '( -CA
!DEFGH @AAutoLISP IJ KLMN
O
PQR
ST 89: R
UV
_$ (defun-q my-startup (x) (print (list x)))
MY-STARTUP
_$ (my-startup 5)
(5) (5)
defun-q-list-ref WX my-startup 8YZ[
_$ (defun-q-list-ref ’my-startup)
((X) (PRINT (LIST X)))
] defun-q-list-ref defun-q-list-set
defun-q-list-ref
PQ defun-q E` 8YZ
(defun-q-list-ref ’function )
function ^_ @A
PQR
8E`a: ! bcE`d8BPQ nil
UV
defun-q E` [
defun-q-list-ref | 53

241. _$ (defun-q my-startup (x) (print (list x)))
MY-STARTUP
defun-q-list-ref my-startup

242. _$ (defun-q-list-ref ’my-startup)
((X) (PRINT (LIST X)))
defun-q defun-q-list-set
defun-q-list-set
@CD3E F$%
(defun-q-list-set ’sym list)
sym
list
!
#$% sym
'
_$ (defun-q-list-set ’foo ’((x) x))
FOO
_$ (foo 3)
3
() '*+,- defun-q-list-set ./012340567
8
Visual LISP 9:;= defun-q $%/0

243. _$ (defun-q s::startup (x) (print x))
S::STARTUP
$ (defun-q my-startup (x) (print (list x)))
MY-STARTUP
? defun-q-list-set @AB12340

244. _$ (defun-q-list-set ’s::startup (append
(defun-q-list-ref ’s::startup)
(cdr (defun-q-list-ref ’my-startup))))
S::STARTUP
54 | AutoLISP

246. defun-q-list-set
_$ (defun-q foo (x) (print (list ’foo x)))
FOO
_$ (foo 1)
(FOO 1) (FOO 1)
_$ (defun-q bar (x) (print (list ’bar x)))
BAR
_$ (bar 2)
(BAR 2) (BAR 2)
_$ (defun-q-list-set
’foo
(append (defun-q-list-ref ’foo)
(cdr (defun-q-list-ref ’bar))
))
FOO
_$ (foo 3)
(FOO 3)
(BAR 3) (BAR 3)
defun-q defun-q-list-ref
dictadd
D[%]!;=#$
(dictadd ename symbol newobj)
ename !#$%'(
symbol !)%*#$+,-symbol ./012'(3
456%*78+,%9:
newobj !)%*;=#$
2?@AB!)%*#$C./ 12DEF%!F#$
GHIJ KL BMN4O+,-P!O2F#$QRSF'
(9: dictnext TUV
WXY
!)%*#$Z'
dictadd | 55

248. (setq dictionary
(list ’(0 . DICTIONARY) ’(100 . AcDbDictionary)))
((0 . DICTIONARY) (100 . AcDbDictionary))
! entmakex #
(setq xname (entmakex dictionary))
$%1d98950
(setq newdict
(dictadd (namedobjdict) MY_WAY_COOL_DICTIONARY xname))
$%1d98950
Xrecord
(setq datalist (append (list ’(0 . XRECORD)
’(100 . AcDbXrecord))
’((1 . This is my data) (10 1. 2. 3.) (70 . 33))))
((0 . XRECORD) (100 . AcDbXrecord) (1 . This is my data) (10 1.0 2.0 3.0) (70 . 33))
'( Xrecord
(setq xname (entmakex datalist))
$%1d98958
Xrecord
(dictadd newdict DATA_RECORD_1 xname)
$%1d98958
) * dictnext+dictremove+dictrename+dictsearch , namedobjdict #
dictnext
./0 12
(dictnext ename [rewind])
#
ename -
56 | AutoLISP

249. rewind nil

250. !

251. #$%

252. '(
nil) DXF
*+,-./012 #34

253. dictsearch !56
78 namedobjdict 9:;=

254. ?@A
BC DE6F

255. GH
IJKL dictnext MNOP

256. @
QRSTU6

257. VWXYZ[
]^_`abcd
ef
ghi dictadd efjklm

258. .
nolmp Xrecord 0qr
str(setq xname (entmakex datalist))
?@r1b62d60
I Xrecord 0qu

259. vwxyz%

260. r
str(dictadd newdict DATA_RECORD_2 xname)
?@r1b62d60

261. ?@r
str(cdr (car (dictnext newdict)))
?@r1bac958
dictnext yz%

262. ?@A

263. ?@r
str(cdr (car (dictnext newdict)))
?@r1bac960
dictnext yz%

264. v?@A

265. ?@r
str(cdr (car (dictnext newdict)))
nil

266. {|}~
j) dictnext nil
dictnext | 57

268. (cdr (car (dictnext newdict T)))
1bac958
T rewind dictnext

269. !
# dictadd$dictremove$dictrename$dictsearch % namedobjdict !
dictremove
, -.

270. (dictremove ename symbol)
'()*+, -./

271. 012,34 -.!2,34
-.567 entdel !89:; =?@A%BCDE!FGHIJK
LMNO34% PQRS HDTKFGUV7 dictremove W,
-./

272. XYZ,34 -.

273. !
ename [] ^!
symbol N, ename -.

274. !
9
BCDE_[34
BC`7Xdictremove 0K2,B
CDE -.!
a-

275. !bc ename defghij symboldictremove nil!
D=
+k D=-.U dictadd D= lm
(dictremove (namedobjdict) my_way_cool_dictionary)
1d98950
# dictadd$dictnext$dictrename$dictsearch % namedobjdict !
dictrename
n

276. (dictrename ename oldsym newsym)
58 | AutoLISP

277. ename
oldsym

278. newsym

279. newsym oldname !#ename $%
newname $% '( newnamedictrename ) * nil
+,
-. +, dictadd +, /0 1
21(dictrename (namedobjdict) my_way_cool_dictionary
An even cooler dictionary)
An even cooler dictionary
3 4 dictadd#dictnext#dictremove#dictsearch 5 namedobjdict )
dictsearch
67=
(dictsearch ename symbol [setnext])
ename 67
symbol 89:; 67

280. dictsearch | 59

281. setnext nil

282. dictnext
dictnext dictsearch
!
#
$%
'()*+
nil
+,
-+,./ 0 dictsearch 12 dictadd +,345678
9:8(setq newdictlist
(dictsearch (namedobjdict) my_way_cool_dictionary))
((-1 . ;=81d98950) (0 . DICTIONARY) (5 . 52) (102 . {ACAD_REACTORS) (330
. ;=81d98860) (102 . }) (330 . ;=81d98860) (100 . AcDbDictionary) (280 .
0) (281 . 1) (3 . DATA_RECORD_1) (350 . ;=81d98958))
? dictadd@dictnext@dictremove A namedobjdict
dimx_tile
HIQR
(dimx_tile key)
key BCD $%EFGHIJK= key LMNOP
!
HIQR
ST!U$%HIVWXYN! Z[HIST!U 0 ]^_
V `a X UbQR
ST!cdN[ X-1 dimx_tile A
dimy_tile ef vector_image@fill_image A slide_image gh iE$
%HINOjkST
+,
(setq tile_width (dimx_tile my_tile))
60 | AutoLISP

283. dimy_tile

284. (dimy_tile key)
key

285. key

286. !

287. #$%

288. 0 '()*

289. + ,- Y . /0

290. 12% Y-1dimx_tile 3
dimy_tile 0 456 vector_image7fill_image 3 slide_image 0 89:; =
?@A0 BC D

291. EF
GH
(setq tile_height (dimy_tile my_tile))
distance
VUMij

292. OP
(distance pt1 pt2)
pt1 IJKLJMN
pt1 IJKLJMN
OP
QRBC

293. ST4UKVUIJM distance 0 2WX BC

294. YZLJM

295. Z [@AM]^_`abcdefg h

296. Mij

297. IJOP
dimy_tile | 61

298. (distance ’(1.0 2.5 3.0) ’(7.7 2.5 3.0))
6.7
(distance ’(1.0 2.0 0.5) ’(3.0 4.0 0.5))
2.82843
Visual LISP

299. distof
'de.‚ƒ378956q'
(distof string [mode])
distof rtos rtos ! #$
distof%distof '() %*+,-./0 mode 123
string 456789: ;= mode 0?@A distof
BCDEFGHIJKLMNO rtos 789P(
12QR%SMN AutoCAD TUVWXYZR
mode 789[ZR?@%K O AutoCAD ]^_`
LUNITS TUa
1%ba cd[e
1 fg
2 h
3 ij.klhkm3
4 no.klIkm3
5 I
p!qr%s%ts nil
uv distof wRxy 3 wRxy 4 2z{|% mode 3 .i
j3} 4 .no3?@%~ string €ZR+%s distof BC
62 | AutoLISP

300. done_dialog
#p9:;
(done_dialog [status])
status start_dialog

301. start_dialog
OK 1 Cancel 0
1
status !# $%
'()*+,-. / #/ done_dialog 0 1 action_tile
234+54+6789:;59:; =? (X,Y)
@ AB
CDEFGHEIacceptJ.IcancelJ KLMN6IOJPIQJKL
RSTUV /
5 / '(W-/ done_dialog

302. $X
YZ789:;
CD[E]KLRSW- /@ T?^ 78KL
AutoCAD X_)`abc
deEIacceptJKLRS W- / '(X
status %E 1. ! fg

303. start_dialog h ij
0 0 klm $QT59:;
end_image
qrstuv 9:;wxyz {*
(end_image)
5 6 start_image no
done_dialog | 63

304. nil
start_image
end_list
fghi
jklm
no
(end_list)

305. start_image
nil
add_list start_list
entdel
=pqA*+r
=
(entdel ename)
ename
!#$%
'( entdel )*+
,-./#$01
2(
345678
entdel 9:; =
:; ?=
ename @ A*+
BC
B
DEFG
entdel HIJKL
MNOP
QRSITUVWX
YZ(
:;[]E command ^_ ATTEDIT A PEDIT `abcde
64 | AutoLISP

307. entmake

308. !
#
$ %
'()*+ ,-. e1/
01/(setq e1 (entnext))
/2c90520
2 e1
/
01/(entdel e1)
/2c90520
342 e1
/
01/(entdel e1)
/2c90520
entget
ˆEF‰
Š G
(entget ename [applist])
5
ename 67
'

309. ename 2
$89
$

310. applist :; =

311. ?@A
BCD ename EF G HIJKLMN
$EFO9
$EF

312. P
Q+ DR5 applistentget ST?@UJVWH XYG

313. Z
HI []^+ D AutoCAD DXF _`ab
G c
def

314. g:h AutoLISP i DXF _`U DXF jk _`lm K

315. HN
AutoLISP DXF _` nopqg5r DXF Reference

316. !
st
$ uvwx EFyz{| (1,2) }| (6,5) ~

317. € !‚`
ƒ entlast „…uvEF
()Z'†‡, entget/
entget | 65

318. (entget (entlast))
((-1 . 1bbd1d0) (0 . LINE) (330 . 1bbd0c8) (5 . 6A) (100 .
AcDbEntity) (67 . 0) (410 . Model) (8 . 0) (100 . AcDbLine) (10 1.0 2.0 0.0) (11 6.0 5.0 0.0)
(210 0.0 0.0 1.0))
entdelentlastentmodentmakeentnext

319. entupd
Visual LISP
entlast
56 JKQLRSTV89U Y :
(entlast)
entlast
command
!
# $%'()*+,-./$%'01234
567
89 :;= ?@89.A56 nil
BC
DEF e1 GHI JK%L :
(setq e1 (entlast))
2c90538
;MNOP'JKQLRST UV WX Y.Z[
]^
entlast
(defun lastent (/ a b)
(if (setq a (entlast))

320. (while (setq b (entnext a))
(setq a b)

321. )
)
a

322. )
entdelentgetentmodentnext

323. entsel
66 | AutoLISP

324. entmake
I B!-.O
(entmake [elist])
entmake

325. elist entget
elist
! #$%
'()*+
,-. / 01 nil 234!/
'()*56 7 89 entmake :;
(=
?7 CIRCLE LINE9@ elist AB
C-D CED
'@CEDFGC-D@ H
IJKLMNentmake !O P1Q) H
' elist B * RS/RST1UQ)
=
'VWX entmake
' entmake YZ! X
nil
[ V]7 endblk :; entmake9[H^_@`a
bc [defghi Visual LISP Bj!kl m
no
Npqr!-.stu (color 62)uvw (4,4)xyw 1
56 8z
{?6D|U()*}~€w(=
‚ƒ(entmake ’((0 . CIRCLE) (62 . 1) (10 4.0 4.0 0.0)
(40 . 1.0)))
((0 . CIRCLE) (62 . 1) (10 4.0 4.0 0.0) (40 . 1.0))
entmake :;„…
_ :; entmake !†‡

326. ˆ‰Š‹ ŒŽ 66 r‘’“”
•–{ 66 rU—˜’™šw
1 ›œ“”ž /r(=w 0
Ÿ”•–{ ]ˆ @
œ
; entmake P¡¢ r 27[H$£9@56
'I
B()*[HAutoCAD ¤!-.O[¥¦X§;¨©[H!¡
¢
entmake | 67

327. entdel entget entmod Visual LISP

328. !
entmake #$ %%
entmakex
DEsab+‚ƒDE„… YM†cv)1_`OI23sY‡
(entmakex [elist])
entmakex '()*+,
elist )* -./0 entget 123-./45
6789:;6 =?@AB
elist
CDE67)* F GH23 nil IJKF
=?@A'L)* M=NO entmakex #$P
?Q
23Q
=RST entmakex 23)* - = entmakex UVT
23 nil
WX
$ (entmakex ’((0 . CIRCLE) (62 . 1) (10 4.0 3.0 0.0) (40 . 1.0)))
YZ1d45558
[] ^_1_`ab cdef .dwg + .dxf gh ij#$
entmakex klm1_` X='(#$ dictadd lmnopq_Fab
entmake
entmod
€abMO)*
(entmod elist)
rst elist -1 u
v)Y w AutoLISP rs
entmod
wxyzV{|$ entget }~)* €)*-
68 | AutoLISP

329. entmod

330. entmod
elist entget !#

331. $%' ()*

332. +,-./0 entmod
1
23 456789() :;$' 3

333. +,-=?@0-ABC

334. D() entmod E
FG6H IJ567893
*
-A9KL entmod elist-A entmod MNOP
L nil
QR
STUVWX

335. YZ
5[ en1

336. *]^_

337. `a

338. bcd
UVd(setq en1 (entnext))
bd2c90520
5
en1

339. efg[ ed d
entmod | 69

340. (setq ed (entget en1))
((-1 . 2c90520) (0 . CIRCLE) (5 . 4C) (100 . AcDbEntity) (67 . 0) (8 . 0) (100
. AcDbCircle) (10 3.45373 6.21635 0.0) (40 . 2.94827) (210 0.0 0.0 1.0))
ed

341. 0

342. 1
(setq ed (subst (cons 8 1) (assoc 8 ed) ed ))
((-1 . 2c90520) (0 . CIRCLE) (5 . 4C) (100 . AcDbEntity) (67 . 0) (8 . 1) (100
. AcDbCircle) (10 3.45373 6.21635 0.0) (40 . 2.94827) (210 0.0 0.0 1.0))
en1

343. (entmod ed)
((-1 . 2c90520) (0 . CIRCLE) (5 . 4C) (100 . AcDbEntity) (67 . 0) (8 . 1) (100
. AcDbCircle) (10 3.45373 6.21635 0.0) (40 . 2.94827) (210 0.0 0.0 1.0))
entmod
entmod
!# $%'()*+,-./012!34 entdel
5671894 command : entmake ;= )
entmod !?@1* SEQEND -2
1*+A
./1 BCDEFG)
! entmod HI )
JK LMJNO 0 : 1PHIQR6ST)*+ entmod U
V,W
1XBYZ
XV[)
] entmod ^_ `1a3bc:defghi?)*+jklm
fgh nX^_]fgh1J!BopqrstP40 41
T)
uvw JK entmod V,W
1x./0J!Byz{|}
V1~ AutoCAD DE€)
‚ N entdelƒentgetƒentmake entnext )Visual LISP
„ …„ † ‡ˆ… )
70 | AutoLISP

344. entnext

345. 1 #sQu v
(entnext [ename])
ename

346. entnext

347. ename !

348. ename #
$%#

349. nil
entnext '(

350. )
*'(

351. +
,-
(setq e1 (entnext)) ; e1

352. (setq e2 (entnext e1)) ; e2 e1

353. ./
ssget
012 345678) 789:;=?@A
'(B
C entnext DEFG + HIJFG KLMN
OP+
'(QRSTU ,RS+
OP+ V'((#
WXYZ ) [ entnext ]YZ SEQEND ! -2 ^
_78` )
a b entdelcentgetcentmake d entnext
entsel
fghBCwxAH34ysQu v
(entsel [msg])
msg efgh ijk
lm! nfgopq
r34sQt
entnext | 71

355. ! #$% UCS '(
entsel )* +,- . /01
23( 456789:;=4$%?@AB(
CB
DE AutoCAD FGHIJ entsel )*KLMN O
FGO line
P O 1,1
D O 6,6
D O ENTER
FGO (setq e (entsel Q

356. O))
Q

357. O 3,3
(
O60000014 (3.0 3.0 0.0))
RS,TU

358. +VWX

359. YZWX[ (
B], AutoCAD Object Snap ^N BREAK_TRIM 4 EXTEND FG `a
C(entsel Kb AutoLISP cde^fgahTU(.ij Lklm

360. (no,)* UpqrI st initget )*uvw$% Osnap x3(
entsel )*yz.%Eij{ initget )*x37|0(
Q } entget_entmake 4 entnext )*
entupd
~#
'‚ƒ
(entupd ename)
*
ename WX~
€(
72 | AutoLISP

361. (ename)

362. nil
!#$%' ()
*+
,-. /0!#1
(setq e1 (entnext)) ; e1
(setq e2 (entnext e1)) ; e2

363. (setq ed (entget e2)) ; ed
(setq ed
(subst ’(10 1.0 2.0)
(assoc 10 ed) ; ed
ed ; (1,2)
)
)
(entmod ed) ;
(entupd e1) ; e1
!#23
45 entmod +,6 789:;!#83=?@ABC
D EF entupd GH
*?@AB +,I !#83 *!#
83 JFK LMNHO
*P5QGH entupd R5S32T=
!#JU O
*P5QGH QGH.VW@AB Q 7XY
Z[
]
^_` 73a 8XY_` 345 entupd GH
b
cCc.VW defghiW.VWjklmP5 REGEN no
pNq entgetrentmod 2 entnext GH
eq
ezst;u{|x }~€
(eq expr1 expr2)
eq GHest; expr1 2 expr2 uvwMx^y7
5 setq GHvw
eq | 73

364. expr1

365. expr2
expr1

366. T nil

367. !
(setq f1 ’(a b c))
(setq f2 ’(a b c))
(setq f3 f2)
f1 f3!
# !(eq f1 f3)
nil
$% f1 f3 '()*+, -. eq nil

368. f3 f2!
# !(eq f3 f2)
T
$% f3 f2 *+, -. eq T

369. / 0 = equal 1

370. equal
eH,
RF
(equal expr1 expr2 [fuzz])
expr1

371. expr2
expr1

372. fuzz 2 3 expr1 expr2 45 6789:;

373. :;=
?@AB'C%DEF

374. G H,2 IJK2 LM N OAPQRSF H,
T ) UVWXYZ[]^[;_

375. . fuzz .`aK U
VWX)bcd :;

376. 74 | AutoLISP

379. T, nil
(setq f1 ’(a b c))
(setq f2 ’(a b c))
(setq f3 f2)
(setq a 1.123456)
(setq b 1.123457)
f1 f3 !
(equal f1 f3)
T
f3 f2 !
(equal f3 f2)
T
ab !
(equal a b)
nil
a # b $%'() * .000001
ab !+,- fuzz ./* .000001
(equal a b 0.000001)
T
0 a # b $%'()

380. ( fuzz +12 equal 3* $%

381. ! eq # equal 4
eq 43*

382. ( 567+equal 483*9:

383. equal 3*

384. ( 67+eq 83*9:

385. ; equal 3*

386. (
eq 3*9:

387. =. = # eq 4
equal | 75

388. *error*
.+,

389. IJ-)
(*error* string)
*error* nil AutoLISP

390. AutoCAD !

391. #$
%'( )*
+, *error* -)./ 0 )1+ command -)2 (command)3*45./67
89 command -)
AutoCAD :;*
=
?@+ vl-exit-with-value A B-)C=*
5D
E-)FGH AutoLISP IJKL
MN OPQ

392. RST

393. #
$R
(defun *error* (msg)
(princ

394. R)
(princ msg)
(princ)
)
U V vl-exit-with-errorWvl-exit-with-valueWvl-catch-all-applyWvl-catch-all-error-
message T vl-catch-all-error-p -)*
eval
= AutoLISP []
_c
(eval expr)
)
expr XYZ
[]*
=
^[]_`ab
c *
76 | AutoLISP

396. (setq a 123)
123

397. (setq b ’a)
A

398. (eval 4.0)
4.0

399. (eval (abs -10))
10

400. (eval a)
123

401. (eval b)
123
exit
0123456789
(exit)
exit ! quit/exit abort#$ AutoCAD %

402. '(
)*+ quit (
exp
: e (2.718282...) %;=?-./@
(exp num)
*
num ,(
, (num) %-./(
exit | 77

403. (exp 1.0)
2.71828
(exp 2.2)
9.02501
(exp -0.4)
0.67032
expand
% AutoLISP IJ
(expand n-expand)
n-expand

404. n-alloc
n-alloc
n-alloc usubr
n-alloc
n-alloc * n-expand cons !
#$ n-alloc %'()*
+,-
./ n-alloc ( 0
1()*23% 100
_$ (alloc 100)
1000
%45(
_$ (expand 2)
82
# 6789 AutoLISP :;=? 200 5@@usubrs A
BC 8200 5 cons DE
F G alloc H
78 | AutoLISP

405. expt
AW X YZ[
(expt number power)
number
power number

406. (expt 2 4)
16
(expt 3.0 2.0)
9.0
fill_image
L]^_ 4`a=?bc% !#
(fill_image x1 y1 width height color)
(x1,y1) !#$%'()* +,- !# $.
'/0*12$% 3456 (width,height) 7 89 (0,0) :;=?
()@ABC dimx_tile D dimy_tile E FGHI/0
fill_image E JKL start_image D end_image
E BCMNBC
x1 #() X JKO
y1 #() Y JKO
width # !PQ34R x1 ST'A=UV+*
expt | 79

407. height
y1

408. color AutoCAD

409. !#$%
TUVW

410. XY:S
ADI Z[X ]
–2 BGLCOLOR AutoCAD ^ ./

411. _J
–15 DBGLCOLOR _J
`a,-
–16 DFGLCOLOR _J
`a4b

412. J-
–18 LINELCOLOR _J
`ac

413. '(#

414. )
*+
(setq color -2) ;; AutoCAD ,-./