2012
Table Of Contents
- Contents
- Commands
- 3D Commands
- A Commands
- B Commands
- C Commands
- CAL
- Understand Syntax of Expressions
- Format Feet and Inches
- Format Angles
- Use Points and Vectors
- Use System Variables in Calculations
- Convert Units of Measurement
- Use Standard Numeric Functions
- Calculate a Vector from Two Points
- Calculate the Length of a Vector
- Obtain a Point by Cursor
- Obtain the Last-Specified Point
- Use Snap Modes in Arithmetic Expressions
- Convert Points Between UCS and WCS
- Calculate a Point on a Line
- Rotate a Point About an Axis
- Obtain an Intersection Point
- Calculate a Distance
- Obtain a Radius
- Obtain an Angle
- Calculate a Normal Vector
- Use Shortcut Functions
- CHAMFER
- CHANGE
- CHPROP
- CHSPACE
- CIRCLE
- CLASSICIMAGE
- CLASSICLAYER
- CLASSICXREF
- CLEANSCREENON
- CLEANSCREENOFF
- CLIP
- CLOSE
- CLOSEALL
- COLOR
- COMMANDLINE
- COMMANDLINEHIDE
- CONSTRAINTBAR
- CONSTRAINTSETTINGS
- CONTENTEXPLORER
- CONTENTEXPLORERCLOSE
- CONVERT
- CONVERTCTB
- CONVERTPSTYLES
- COPY
- COPYBASE
- COPYCLIP
- COPYHIST
- COPYLINK
- COPYTOLAYER
- CUI
- CUIEXPORT
- CUIIMPORT
- CUILOAD
- CUIUNLOAD
- CUSTOMIZE
- CUTCLIP
- CAL
- D Commands
- DATALINK
- DATALINKUPDATE
- DCDISPLAY
- DDEDIT
- DDPTYPE
- DDVPOINT
- DELAY
- DELCONSTRAINT
- DETACHURL
- DGNADJUST
- DGNATTACH
- DGNBIND (-DGNBIND)
- DGNCLIP
- DGNEXPORT
- DGNIMPORT
- DGNLAYERS
- DGNMAPPING
- DIM and DIM1
- DIMALIGNED
- DIMANGULAR
- DIMARC
- DIMBASELINE
- DIMBREAK
- DIMCENTER
- DIMCONTINUE
- DIMDIAMETER
- DIMDISASSOCIATE
- DIMEDIT
- DIMINSPECT
- DIMJOGGED
- DIMJOGLINE
- DIMLINEAR
- DIMORDINATE
- DIMOVERRIDE
- DIMRADIUS
- DIMREASSOCIATE
- DIMREGEN
- DIMROTATED
- DIMSPACE
- DIMSTYLE
- DIMTEDIT
- DIST
- DIVIDE
- DLINE
- DONUT
- DOWNLOADMANAGER
- DRAGMODE
- DRAWINGRECOVERY
- DRAWINGRECOVERYHIDE
- DRAWORDER
- DSETTINGS
- DWFADJUST
- DWFATTACH
- DWFCLIP
- DWFFORMAT
- DWFLAYERS
- DWGCONVERT
- DWGPROPS
- E Commands
- F Commands
- G Commands
- H Commands
- I Commands
- J Commands
- L Commands
- M Commands
- N Commands
- O Commands
- OBJECTSCALE
- OFFSET
- OLELINKS
- OLESCALE
- ONLINEDRAWINGS
- OOPS
- OPEN
- OPENDWFMARKUP
- OPENONLINE
- OPENSHEETSET
- OPTIONS
- Options Dialog Box
- Alternate Font Dialog Box
- Drawing Window Colors Dialog Box
- Command Line Window Font Dialog Box
- Thumbnail Preview Settings Dialog Box
- Plot Style Table Settings Dialog Box
- Right-Click Customization Dialog Box
- Field Update Settings Dialog Box
- Visual Effect Settings Dialog Box
- Ribbon Contextual Tab State Options Dialog Box
- Advanced Preview Options Dialog Box
- Transparency Dialog Box
- Hidden Message Settings Dialog Box
- InfoCenter Settings Dialog Box
- Default Scale List Dialog Box
- ORTHO
- OSNAP
- OVERKILL
- P Commands
- Q Commands
- R Commands
- S Commands
- SAVE
- SAVEAS
- SCALE
- SCALELISTEDIT
- SCALETEXT
- SCRIPT
- SECURITYOPTIONS
- SEEK
- SELECT
- SELECTSIMILAR
- SETBYLAYER
- SETENV
- SETVAR
- SHADE
- SHADEMODE
- SHARE
- SHAREWITHSEEK
- SHEETSET
- Sheet Set Manager
- Subset Properties Dialog Box
- Publish Sheets Dialog Box
- Select Layout as Sheet Template Dialog Box
- New Sheet Dialog Box
- Rename & Renumber Sheet Dialog Box
- Rename & Renumber View Dialog Box
- Import Layouts as Sheets Dialog Box
- Insert Sheet List Table Dialog Box
- Edit Sheet List Table Settings Dialog Box
- Sheet Set Properties Dialog Box
- Sheet Set Custom Properties Dialog Box
- Add Custom Property Dialog Box
- Resource Drawing Locations Dialog Box
- Sheet Properties Dialog Box
- New Sheet Selection Dialog Box
- Sheet Selections Dialog Box
- View Category Dialog Box
- List of Blocks Dialog Box
- Select Block Dialog Box
- SHEETSETHIDE
- SHOWPALETTES
- SIGVALIDATE
- SKETCH
- SNAP
- SOLID
- SPACETRANS
- SPELL
- SPLINE
- SPLINEDIT
- STRETCH
- STYLE
- STYLESMANAGER
- SUBTRACT
- SYSWINDOWS
- T Commands
- U Commands
- V Commands
- W Commands
- X Commands
- Z Commands
- Command Modifiers
- System Variables
- 3D System Variables
- A System Variables
- B System Variables
- C System Variables
- CALCINPUT
- CANNOSCALE
- CANNOSCALEVALUE
- CBARTRANSPARENCY
- CDATE
- CECOLOR
- CELTSCALE
- CELTYPE
- CELWEIGHT
- CENTERMT
- CETRANSPARENCY
- CHAMFERA
- CHAMFERB
- CHAMFERC
- CHAMFERD
- CHAMMODE
- CIRCLERAD
- CLASSICKEYS
- CLAYER
- CLEANSCREENSTATE
- CLISTATE
- CLIPBOARD
- CMDACTIVE
- CMDDIA
- CMDINPUTHISTORYMAX
- CMDNAMES
- CMLEADERSTYLE
- CONSTRAINTBARMODE
- CONSTRAINTNAMEFORMAT
- CONSTRAINTRELAX
- CONSTRAINTSOLVEMODE
- CONTENTEXPLORERSTATE
- COORDS
- COPYMODE
- CPLOTSTYLE
- CROSSINGAREACOLOR
- CTAB
- CTABLESTYLE
- CURSORSIZE
- CVPORT
- D System Variables
- DATALINKNOTIFY
- DATE
- DBLCLKEDIT
- DBMOD
- DCTCUST
- DCTMAIN
- DEFLPLSTYLE
- DEFPLSTYLE
- DELOBJ
- DGNFRAME
- DGNIMPORTMAX
- DGNIMPORTMODE
- DGNMAPPINGPATH
- DGNOSNAP
- DIASTAT
- DIGITIZER
- DIMADEC
- DIMALT
- DIMALTD
- DIMALTF
- DIMALTRND
- DIMALTTD
- DIMALTTZ
- DIMALTU
- DIMALTZ
- DIMANNO
- DIMAPOST
- DIMARCSYM
- DIMASSOC
- DIMASZ
- DIMATFIT
- DIMAUNIT
- DIMAZIN
- DIMBLK
- DIMBLK1
- DIMBLK2
- DIMCEN
- DIMCLRD
- DIMCLRE
- DIMCLRT
- DIMCONSTRAINTICON
- DIMDEC
- DIMDLE
- DIMDLI
- DIMDSEP
- DIMEXE
- DIMEXO
- DIMFRAC
- DIMFXL
- DIMFXLON
- DIMGAP
- DIMJOGANG
- DIMJUST
- DIMLDRBLK
- DIMLFAC
- DIMLIM
- DIMLTEX1
- DIMLTEX2
- DIMLTYPE
- DIMLUNIT
- DIMLWD
- DIMLWE
- DIMPOST
- DIMRND
- DIMSAH
- DIMSCALE
- DIMSD1
- DIMSD2
- DIMSE1
- DIMSE2
- DIMSOXD
- DIMSTYLE
- DIMTAD
- DIMTDEC
- DIMTFAC
- DIMTFILL
- DIMTFILLCLR
- DIMTIH
- DIMTIX
- DIMTM
- DIMTMOVE
- DIMTOFL
- DIMTOH
- DIMTOL
- DIMTOLJ
- DIMTP
- DIMTSZ
- DIMTVP
- DIMTXSTY
- DIMTXT
- DIMTXTDIRECTION
- DIMTZIN
- DIMUPT
- DIMZIN
- DISPSILH
- DISTANCE
- DONUTID
- DONUTOD
- DRAGMODE
- DRAGP1
- DRAGP2
- DRAWORDERCTL
- DRSTATE
- DTEXTED
- DWFFRAME
- DWFOSNAP
- DWGCHECK
- DWGCODEPAGE
- DWGNAME
- DWGPREFIX
- DWGTITLED
- DYNCONSTRAINTMODE
- DYNDIGRIP
- DYNDIVIS
- DYNINFOTIPS
- DYNMODE
- DYNPICOORDS
- DYNPIFORMAT
- DYNPIVIS
- DYNPROMPT
- DYNTOOLTIPS
- E System Variables
- F System Variables
- G System Variables
- H System Variables
- HALOGAP
- HANDLES
- HELPPREFIX
- HIDEPRECISION
- HIDETEXT
- HIGHLIGHT
- HPANG
- HPANNOTATIVE
- HPASSOC
- HPBACKGROUNDCOLOR
- HPBOUND
- HPBOUNDRETAIN
- HPCOLOR
- HPDLGMODE
- HPDOUBLE
- HPDRAWORDER
- HPGAPTOL
- HPINHERIT
- HPISLANDDETECTION
- HPISLANDDETECTIONMODE
- HPLAYER
- HPMAXAREAS
- HPMAXLINES
- HPNAME
- HPOBJWARNING
- HPORIGIN
- HPORIGINMODE
- HPQUICKPREVIEW
- HPQUICKPREVTIMEOUT
- HPSCALE
- HPSEPARATE
- HPSPACE
- HPTRANSPARENCY
- HYPERLINKBASE
- I System Variables
- L System Variables
- M System Variables
- N System Variables
- O System Variables
- P System Variables
- PALETTEOPAQUE
- PAPERUPDATE
- PDFFRAME
- PDFOSNAP
- PDMODE
- PDSIZE
- PEDITACCEPT
- PELLIPSE
- PERIMETER
- PERSPECTIVE
- PERSPECTIVECLIP
- PICKADD
- PICKAUTO
- PICKBOX
- PICKDRAG
- PICKFIRST
- PICKSTYLE
- PLATFORM
- PLINECONVERTMODE
- PLINEGEN
- PLINETYPE
- PLINEWID
- PLOTOFFSET
- PLOTROTMODE
- PLOTTRANSPARENCYOVERRIDE
- POINTCLOUDDENSITY
- POLARADDANG
- POLARANG
- POLARDIST
- POLARMODE
- POLYSIDES
- PREVIEWEFFECT
- PREVIEWFACEEFFECT
- PREVIEWFILTER
- PROJMODE
- PROPOBJLIMIT
- PROXYGRAPHICS
- PROXYNOTICE
- PROXYSHOW
- PROXYWEBSEARCH
- PSLTSCALE
- PSTYLEMODE
- PSTYLEPOLICY
- PUBLISHALLSHEETS
- PUBLISHCOLLATE
- PUBLISHHATCH
- PUCSBASE
- Q System Variables
- R System Variables
- S System Variables
- SAVEFIDELITY
- SAVEFILE
- SAVEFILEPATH
- SAVENAME
- SAVETIME
- SCREENSIZE
- SELECTIONANNODISPLAY
- SELECTIONAREA
- SELECTIONAREAOPACITY
- SELECTIONCYCLING
- SELECTIONPREVIEW
- SELECTSIMILARMODE
- SETBYLAYERMODE
- SHADEDGE
- SHADEDIF
- SHORTCUTMENU
- SHORTCUTMENUDURATION
- SHOWLAYERUSAGE
- SHOWPAGESETUPFORNEWLAYOUTS
- SIGWARN
- SKETCHINC
- SKPOLY
- SKTOLERANCE
- SNAPANG
- SNAPBASE
- SNAPISOPAIR
- SNAPMODE
- SNAPSTYL
- SNAPTYPE
- SNAPUNIT
- SORTENTS
- SPLDEGREE
- SPLFRAME
- SPLINESEGS
- SPLINETYPE
- SPLKNOTS
- SPLMETHOD
- SPLPERIODIC
- SSFOUND
- SSLOCATE
- SSMAUTOOPEN
- SSMPOLLTIME
- SSMSHEETSTATUS
- SSMSTATE
- STARTUP
- STATUSBAR
- SYSCODEPAGE
- T System Variables
- TABLEINDICATOR
- TABLETOOLBAR
- TABMODE
- TARGET
- TBSHOWSHORTCUTS
- TDCREATE
- TDINDWG
- TDUCREATE
- TDUPDATE
- TDUSRTIMER
- TDUUPDATE
- TEMPOVERRIDES
- TEXTED
- TEXTFILL
- TEXTOUTPUTFILEFORMAT
- TEXTQLTY
- TEXTSIZE
- TEXTSTYLE
- THICKNESS
- TILEMODE
- TIMEZONE
- TOOLTIPMERGE
- TOOLTIPS
- TOOLTIPSIZE
- TOOLTIPTRANSPARENCY
- TPSTATE
- TRACEWID
- TRACKPATH
- TRANSPARENCYDISPLAY
- TRAYICONS
- TRAYNOTIFY
- TRAYTIMEOUT
- TREEDEPTH
- TREEMAX
- TRIMMODE
- TSPACEFAC
- TSPACETYPE
- TSTACKALIGN
- TSTACKSIZE
- U System Variables
- V System Variables
- W System Variables
- X System Variables
- Z System Variables
- Utilities
- Index
Turns the selected layers on and off. When a layer is on it is visible and
available for plotting. When a layer is off, it is invisible and not plotted, even
if Plot is on.
Name
Displays the name of the layer.
UNDO
Quick Reference
See also:
■ Correct Mistakes
Reverses the effect of commands.
Access Methods
Button
Toolbar: Standard
Summary
UNDO displays the command or system variable name at the Command
prompt to indicate that you have stepped past the point where the command
was used.
NOTE UNDO has no effect on some commands and system variables, including
those that open, close, or save a window or a drawing, display information, change
the graphics display, regenerate the drawing, or export the drawing in a different
format.
List of Prompts
The following prompts are displayed.
UNDO | 1283