2011
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 AutoLISP Variables
- 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
- CHAMFEREDGE
- CHANGE
- CHPROP
- CIRCLE
- CLEANSCREENON
- CLEANSCREENOFF
- CLOSE
- CLOSEALL
- COLOR
- COMMANDLINE
- COMMANDLINEHIDE
- COMPILE
- CONE
- CONSTRAINTBAR
- CONSTRAINTSETTINGS
- CONTENT
- CONTENTCLOSE
- CONVERT
- CONVTOMESH
- CONVTONURBS
- CONVTOSOLID
- CONVTOSURFACE
- COPY
- COPYBASE
- COPYCLIP
- COPYHIST
- CUI
- CUTCLIP
- CVADD
- CVHIDE
- CVREBUILD
- CVREMOVE
- CVSHOW
- CYLINDER
- CAL
- D Commands
- DBLIST
- DCALIGNED
- DCANGULAR
- DCCONVERT
- DCDIAMETER
- DCDISPLAY
- DCFORM
- DCHORIZONTAL
- DCLINEAR
- DCRADIUS
- DCVERTICAL
- DDEDIT
- DDPTYPE
- DELAY
- DELCONSTRAINT
- DIM and DIM1
- DIMALIGNED
- DIMANGULAR
- DIMARC
- DIMBASELINE
- DIMBREAK
- DIMCENTER
- DIMCONSTRAINT
- DIMCONTINUE
- DIMDIAMETER
- DIMDISASSOCIATE
- DIMEDIT
- DIMHORIZONTAL
- DIMINSPECT
- DIMJOGGED
- DIMJOGLINE
- DIMLINEAR
- DIMORDINATE
- DIMOVERRIDE
- DIMRADIUS
- DIMREASSOCIATE
- DIMREGEN
- DIMROTATED
- DIMSPACE
- DIMSTYLE
- DIMTEDIT
- DIMVERTICAL
- DIST
- DISTANTLIGHT
- DIVIDE
- DONUT
- DRAGMODE
- DRAWORDER
- DSETTINGS
- DVIEW
- DXBIN
- E Commands
- F Commands
- G Commands
- H Commands
- I Commands
- J Commands
- L Commands
- M Commands
- MASSPROP
- MATBROWSERCLOSE
- MATBROWSEROPEN
- MATCHCELL
- MATCHPROP
- MATERIALS
- MATERIALSCLOSE
- MEASURE
- MEASUREGEOM
- MESH
- MESHCAP
- MESHCOLLAPSE
- MESHCREASE
- MESHEXTRUDE
- MESHMERGE
- MESHREFINE
- MESHSMOOTH
- MESHSMOOTHLESS
- MESHSMOOTHMORE
- MESHSPIN
- MESHSPLIT
- MESHUNCREASE
- MINSERT
- MIRROR
- MIRROR3D
- MLEADER
- MLEADERALIGN
- MLEADERCOLLECT
- MLEADEREDIT
- MLEADERSTYLE
- MLINE
- MODEL
- MOVE
- MREDO
- MSPACE
- MTEDIT
- MTEXT
- MULTIPLE
- MVIEW
- MVSETUP
- N Commands
- O Commands
- OBJECTSCALE
- OFFSET
- OOPS
- OPEN
- OPTIONS
- Application Preferences Dialog Box
- General Tab (Application Preferences Dialog Box)
- Cursor & Selection Tab (Application Preferences Dialog Box)
- Units & Guides Tab (Application Preferences Dialog Box)
- Look & Feel Tab (Application Preferences Dialog Box)
- Application Tab (Application Preferences Dialog Box)
- Document Settings Tab (Application Preferences Dialog Box)
- Select Alternate Font Dialog Box
- Default Scale List Dialog Box
- Application Preferences Dialog Box
- ORTHO
- OSNAP
- P Commands
- Q Commands
- R Commands
- S Commands
- SAVE
- SAVEAS
- SAVEIMG
- SCALE
- SCALELISTEDIT
- SCRIPT
- SECTION
- SECTIONPLANE
- SECTIONPLANEJOG
- SECTIONPLANESETTINGS
- SECTIONPLANETOBLOCK
- SELECT
- SELECTSIMILAR
- SETVAR
- SHADEMODE
- SHAPE
- SHELL
- SHOWPALETTES
- SKETCH
- SLICE
- SNAP
- SOLDRAW
- SOLID
- SOLIDEDIT
- SOLPROF
- SOLVIEW
- SPELL
- SPHERE
- SPLINE
- SPLINEDIT
- SPOTLIGHT
- STATUS
- STLOUT
- STRETCH
- STYLE
- SUBTRACT
- SURFBLEND
- SURFEXTEND
- SURFFILLET
- SURFNETWORK
- SURFOFFSET
- SURFPATCH
- SURFSCULPT
- SURFTRIM
- SURFUNTRIM
- SWEEP
- 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
- CAMERADISPLAY
- CANNOSCALE
- CANNOSCALEVALUE
- CCONSTRAINTFORM
- CDATE
- CECOLOR
- CELTSCALE
- CELTYPE
- CELWEIGHT
- CENTERMT
- CETRANSPARENCY
- CHAMFERA
- CHAMFERB
- CHAMFERC
- CHAMFERD
- CHAMMODE
- CIRCLERAD
- CLASSICKEYS
- CLAYER
- CLEANSCREENSTATE
- CLISTATE
- CMATERIAL
- CMDACTIVE
- CMDDIA
- CMDECHO
- CMDINPUTHISTORYMAX
- CMDNAMES
- CMLEADERSTYLE
- CMLJUST
- CMLSCALE
- CMLSTYLE
- COLORSCHEME
- COMPASS
- CONSTRAINTBARDISPLAY
- CONSTRAINTBARMODE
- CONSTRAINTINFER
- CONSTRAINTNAMEFORMAT
- CONSTRAINTRELAX
- CONSTRAINTSOLVEMODE
- CONTENTSTATE
- COPYMODE
- CPLOTSTYLE
- CPROFILE
- CROSSINGAREACOLOR
- CSHADOW
- CTAB
- CTABLESTYLE
- CULLINGOBJ
- CULLINGOBJSELECTION
- CURSORSIZE
- CVPORT
- D System Variables
- DATE
- DBLCLKEDIT
- DBMOD
- DEFAULTGIZMO
- DEFAULTLIGHTING
- DEFAULTLIGHTINGTYPE
- DEFLPLSTYLE
- DEFPLSTYLE
- DELOBJ
- DEMANDLOAD
- DIASTAT
- 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
- DISPLAYVIEWCUBEIN2D
- DISPLAYVIEWCUBEIN3D
- DISPSILH
- DISTANCE
- DIVMESHBOXHEIGHT
- DIVMESHBOXLENGTH
- DIVMESHBOXWIDTH
- DIVMESHCONEAXIS
- DIVMESHCONEBASE
- DIVMESHCONEHEIGHT
- DIVMESHCYLAXIS
- DIVMESHCYLBASE
- DIVMESHCYLHEIGHT
- DIVMESHPYRBASE
- DIVMESHPYRHEIGHT
- DIVMESHPYRLENGTH
- DIVMESHSPHEREAXIS
- DIVMESHSPHEREHEIGHT
- DIVMESHTORUSPATH
- DIVMESHTORUSSECTION
- DIVMESHWEDGEBASE
- DIVMESHWEDGEHEIGHT
- DIVMESHWEDGELENGTH
- DIVMESHWEDGESLOPE
- DIVMESHWEDGEWIDTH
- DONUTID
- DONUTOD
- DRAGMODE
- DRAGP1
- DRAGP2
- DRAGVS
- DRAWORDERCTL
- DTEXTED
- DWGCHECK
- DWGCODEPAGE
- DWGNAME
- DWGPREFIX
- DWGTITLED
- DYNCONSTRAINTMODE
- DYNDIGRIP
- DYNDIVIS
- 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
- HPMAXLINES
- HPNAME
- HPOBJWARNING
- HPORIGIN
- HPORIGINMODE
- HPQUICKPREVIEW
- HPQUICKPREVTIMEOUT
- HPSCALE
- HPSEPARATE
- HPSPACE
- HPTRANSPARENCY
- I System Variables
- L System Variables
- LARGEOBJECTSUPPORT
- LASTANGLE
- LASTPOINT
- LASTPROMPT
- LATITUDE
- LAYEREVAL
- LAYEREVALCTL
- LAYERMANAGERSTATE
- LAYERNOTIFY
- LAYLOCKFADECTL
- LAYOUTCREATEVIEWPORT
- LAYOUTREGENCTL
- LEGACYCTRLPICK
- LENSLENGTH
- LIGHTGLYPHDISPLAY
- LIGHTINGUNITS
- LIGHTSINBLOCKS
- LIMCHECK
- LIMMAX
- LIMMIN
- LINEARBRIGHTNESS
- LINEARCONTRAST
- LOCALE
- LOCALROOTPREFIX
- LOFTANG1
- LOFTANG2
- LOFTMAG1
- LOFTMAG2
- LOFTNORMALS
- LOFTPARAM
- LOGEXPBRIGHTNESS
- LOGEXPCONTRAST
- LOGEXPDAYLIGHT
- LOGEXPMIDTONES
- LOGEXPPHYSICALSCALE
- LOGFILEMODE
- LOGFILENAME
- LOGFILEPATH
- LOGINNAME
- LONGITUDE
- LTSCALE
- LUNITS
- LUPREC
- LWDEFAULT
- LWDISPLAY
- LWUNITS
- M System Variables
- N System Variables
- O System Variables
- P System Variables
- PALETTEICONSTATE
- PAPERUPDATE
- PARAMETERCOPYMODE
- PDMODE
- PDSIZE
- PEDITACCEPT
- PELLIPSE
- PERIMETER
- PERSPECTIVE
- PERSPECTIVECLIP
- PFACEVMAX
- PICKADD
- PICKAUTO
- PICKBOX
- PICKDRAG
- PICKFIRST
- PICKSTYLE
- PLATFORM
- PLINECONVERTMODE
- PLINEGEN
- PLINETYPE
- PLINEWID
- PLOTOFFSET
- PLOTROTMODE
- PLOTTRANSPARENCYOVERRIDE
- PLQUIET
- POLARADDANG
- POLARANG
- POLARDIST
- POLARMODE
- POLYSIDES
- POPUPS
- PREVIEWEFFECT
- PREVIEWFACEEFFECT
- PREVIEWFILTER
- PRODUCT
- PROGRAM
- PROJMODE
- PROXYGRAPHICS
- PROXYNOTICE
- PROXYSHOW
- PROXYWEBSEARCH
- PSLTSCALE
- PSOLHEIGHT
- PSOLWIDTH
- PSTYLEMODE
- PSTYLEPOLICY
- PSVPSCALE
- PUCSBASE
- Q System Variables
- R System Variables
- S System Variables
- SAVEFIDELITY
- SAVEFILE
- SAVEFILEPATH
- SAVENAME
- SAVETIME
- SCREENSIZE
- SELECTIONANNODISPLAY
- SELECTIONAREA
- SELECTIONAREAOPACITY
- SELECTIONCYCLING
- SELECTIONPREVIEW
- SELECTSIMILARMODE
- SHADEDGE
- SHADEDIF
- SHADOWPLANELOCATION
- SHORTCUTMENU
- SHORTCUTMENUDURATION
- SHOWHIST
- SHOWPAGESETUPFORNEWLAYOUTS
- SHOWPALETTESTATE
- SHPNAME
- SKETCHINC
- SKPOLY
- SKTOLERANCE
- SKYSTATUS
- SMOOTHMESHCONVERT
- SMOOTHMESHGRID
- SMOOTHMESHMAXFACE
- SMOOTHMESHMAXLEV
- SNAPANG
- SNAPBASE
- SNAPISOPAIR
- SNAPMODE
- SNAPSTYL
- SNAPTYPE
- SNAPUNIT
- SOLIDCHECK
- SOLIDHIST
- SORTENTS
- SPACEPAN
- SPACEPANTIMEOUT
- SPLDEGREE
- SPLFRAME
- SPLINESEGS
- SPLINETYPE
- SPLKNOTS
- SPLMETHOD
- SPLPERIODIC
- STARTUP
- STATUSBAR
- SUBOBJSELECTIONMODE
- SUNSTATUS
- SURFACEASSOCIATIVITY
- SURFACEASSOCIATIVITYDRAG
- SURFACEAUTOTRIM
- SURFACEMODELINGMODE
- SURFTAB1
- SURFTAB2
- SURFTYPE
- SURFU
- SURFV
- SYSCODEPAGE
- T System Variables
- TABLEINDICATOR
- TARGET
- TBEXTENDAFTERSECONDS
- TBSHOWSHORTCUTS
- TDCREATE
- TDINDWG
- TDUCREATE
- TDUPDATE
- TDUSRTIMER
- TDUUPDATE
- TEMPOVERRIDES
- TEMPPREFIX
- TEXTED
- TEXTEVAL
- TEXTFILL
- TEXTOUTPUTFILEFORMAT
- TEXTQLTY
- TEXTSIZE
- TEXTSTYLE
- THICKNESS
- TILEMODE
- TIMEZONE
- TOOLSETSSTATE
- TOOLTIPMERGE
- TOOLTIPSIZE
- TOOLTIPTRANSPARENCY
- TRACEWID
- TRACKPATH
- TRANSPARENCYDISPLAY
- TREEDEPTH
- TREEMAX
- TRIMMODE
- TSPACEFAC
- TSPACETYPE
- TSTACKALIGN
- TSTACKSIZE
- U System Variables
- V System Variables
- VIEWCTR
- VIEWDIR
- VIEWMODE
- VIEWSIZE
- VIEWTWIST
- VISRETAIN
- VPCONTROL
- VPCOORDDISPLAY
- VPLAYEROVERRIDES
- VPLAYEROVERRIDESMODE
- VPMAXIMIZEDSTATE
- VPROTATEASSOC
- VSACURVATUREHIGH
- VSACURVATURELOW
- VSACURVATURETYPE
- VSADRAFTANGLEHIGH
- VSADRAFTANGLELOW
- VSAZEBRACOLOR1
- VSAZEBRACOLOR2
- VSAZEBRADIRECTION
- VSAZEBRASIZE
- VSAZEBRATYPE
- VSEDGECOLOR
- VSEDGEJITTER
- VSEDGELEX
- VSEDGEOVERHANG
- VSEDGES
- VSEDGESMOOTH
- VSFACECOLORMODE
- VSFACEHIGHLIGHT
- VSFACEOPACITY
- VSFACESTYLE
- VSHALOGAP
- VSHIDEPRECISION
- VSINTERSECTIONCOLOR
- VSINTERSECTIONEDGES
- VSINTERSECTIONLTYPE
- VSISOONTOP
- VSLIGHTINGQUALITY
- VSMATERIALMODE
- VSMAX
- VSMIN
- VSMONOCOLOR
- VSOBSCUREDCOLOR
- VSOBSCUREDEDGES
- VSOBSCUREDLTYPE
- VSOCCLUDEDCOLOR
- VSOCCLUDEDEDGES
- VSOCCLUDEDLTYPE
- VSSHADOWS
- VSSILHEDGES
- VSSILHWIDTH
- W System Variables
- X System Variables
- Z System Variables
- Index
Calculate a Vector from Two Points
Quick Reference
See also:
■ Use the Command Prompt Calculator
The functions vec and vec1 calculate a vector from two points.
vec(p1,p2) Provides the vector from point p1 to point p2.
vec1(p1,p2) Provides the unit vector from point p1 to point p2.
The following example uses CAL to move selected objects 3 units in the
direction from the center of one selected circle to the center of another selected
circle:
Command: move
Select objects
Specify base point or displacement: 'cal
>> Expression: 3*vec1(cen,cen)
Select entity for CEN snap: Specify a circle or an arc
Specify second point of displacement or <use first point as displacement>:
Specify a point or press Enter
The following examples illustrate the meaning of vector and point calculations.
Examples of vector and point calculations
MeaningExpression
Determines vector translation from point a to point b.vec(a,b)
Determines unit vector direction from point a to point b.vec1(a,b)
Determines vector of length L in the direction from point a
to point b.
L*vec1(a,b)
Determines point b, which is a translation of the point a
through vector v.
a+v
Determines point b located 5 units away from point a at an
angle of 20 degrees. Note that [5<20] is a vector in polar co-
ordinates.
a+[5<20]
160 | Chapter 4 C Commands