MATLAB Function Reference (Volume 2: Graphics)

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drawnowPurpose2drawnowComplete pending drawing eventsSyntaxDescriptionRemarksdrawnowdrawnow flushes the event queue and updates the figure window.Other events that cause <strong>MATLAB</strong> to flush the event queue and draw the figurewindows include:• Returning to the <strong>MATLAB</strong> prompt• A pause statement• A waitforbuttonpress statement• A waitfor statement• A getframe statement• A figure statementExamplesExecuting the statements,x = –pi:pi/20:pi;plot(x,cos(x))drawnowtitle('A Short Title')grid onas an M-file updates the current figure after executing the drawnow functionand after executing the final statement.See Alsowaitfor, pause, waitforbuttonpress2-128
errorbarPurpose2errorbarPlot error bars along a curveSyntaxDescriptionerrorbar(Y,E)errorbar(X,Y,E)errorbar(X,Y,L,U)errorbar(...,LineSpec)h = errorbar(...)Error bars show the confidence level of data or the deviation along a curve.errorbar(Y,E) plots Y and draws an error bar at each element of Y. The errorbar is a distance of E(i) above and below the curve so that each bar issymmetric and 2*E(i) long.errorbar(X,Y,E) plots X versus Y with symmetric error bars 2*E(i) long. X, Y,E must be the same size. When they are vectors, each error bar is a distance ofE(i) above and below the point defined by (X(i),Y(i)). When they arematrices, each error bar is a distance of E(i,j) above and below the pointdefined by (X(i,j),Y(i,j)).errorbar(X,Y,L,U) plots X versus Y with error bars L(i)+U(i) long specifyingthe lower and upper error bars. X, Y, L, and U must be the same size. When theyare vectors, each error bar is a distance of L(i) below and U(i) above the pointdefined by (X(i),Y(i)). When they are matrices, each error bar is a distanceof L(i,j) below and U(i,j) above the point defined by (X(i,j),Y(i,j)).errorbar(...,LineSpec) draws the error bars using the line type, markersymbol, and color specified by LineSpec.h = errorbar(...) returns a vector of handles to line graphics objects.RemarksWhen the arguments are all matrices, errorbar draws one line per matrixcolumn. If X and Y are vectors, they specify one curve.2-129
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MATLAB®The Language of Technical C
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Contents1Command SummaryGeneral Pur
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1Command SummaryThis chapter lists
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Controlling the Command Windowclcec
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evalinfevalfunctionglobalnargchkper
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InfInfinityinputname Input argument
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ealremroundsec, sechsignsin, sinhsq
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funmlogmsqrtmEvaluate functions of
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Polynomial and Interpolation Functi
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Sparse Systems of Linear Equationsb
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hex2dechex2numIEEE hexadecimal to d
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Multidimensional Array Functionscat
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stream3streamlinesurf2patchsubvolum
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colormapgraymonhsv2rgbrgb2hsvrgbplo
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Interactive User Inputginput Graphi
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2ReferenceThis chapter describes al
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areaExamplesPlot the values in Y as
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axesWhile the basic purpose of an a
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axesIn this example, the first plot
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axesProperty Name Property Descript
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Axes Propertiesgraphics object disp
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Axes PropertiesCameraViewAngleCamer
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Axes PropertiesCurrentPoint 2-by-3
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Axes Propertiesautomatically sets t
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Axes Propertiessetting the XLabel,
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Axes Propertiessets LineStyleOrder
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Axes Propertiesaxes are made as lar
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Axes PropertiesTypestring (read onl
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Axes PropertiesXLabel, YLabel, ZLab
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axisPurpose2axisAxis scaling and ap
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axisaxis normal automatically adjus
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axisThe right figure shows a more s
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ar, barhPurpose2bar, barhBar chartS
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ar, barhExamplesPlot a bell shaped
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ar3, bar3hPurpose2bar3, bar3hThree-
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ar3, bar3hsubplot(3,2,4)bar3(Y,0.5,
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oxPurpose2boxControl axes borderSyn
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camdollyPurpose2camdollyMove the ca
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camlightPurpose2camlightCreate or m
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camlookatPurpose2camlookatPosition
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camorbitPurpose2camorbitRotate the
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campanPurpose2campanRotate the came
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camposSee Alsoaxis, camproj, camtar
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camrollPurpose2camrollRotate the ca
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camtargetExamplesThis example moves
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camupSee Alsoaxis, camproj, campos,
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camvaSetting a camera view angle or
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capturePurpose2captureis obsolete i
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caxismap them to an entry in the co
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caxisThe blue color of the ocean is
Page 107 and 108: clabelPurpose2clabelContour plot el
Page 109 and 110: clfPurpose2clfClear current figure
Page 111 and 112: closemust specify the hidden option
Page 113 and 114: colorbarExamplesDisplay a colorbar
Page 115 and 116: colormapPurpose2colormapSet and get
Page 117 and 118: colormapExamplesThe images and colo
Page 119 and 120: ColorSpecPurpose2ColorSpecspecifica
Page 121 and 122: cometPurpose2cometTwo-dimensional c
Page 123 and 124: compassPurpose2compassPlot arrows e
Page 125 and 126: coneplotPurpose2coneplotPlot veloci
Page 127 and 128: coneplot• Draw the cones, setting
Page 129 and 130: coneplotSee Alsoisosurface, patch,
Page 131 and 132: contourRemarksExamplesIf you do not
Page 133 and 134: contour4512104010358830810258201510
Page 135 and 136: contour3RemarksExamplesIf you do no
Page 137 and 138: contourccontours using a regularly
Page 139 and 140: contourfExamplesCreate a filled con
Page 141 and 142: contoursliceExamplesThis example us
Page 143 and 144: contrastPurpose2contrastGrayscale c
Page 145 and 146: copyobjExamplesCopy a surface to a
Page 147 and 148: cylinderExamplesCreate a cylinder w
Page 149 and 150: daspectPurpose2daspectSet or query
Page 151 and 152: daspectSetting the data aspect rati
Page 153 and 154: datetickDateform Format Example12 m
Page 155 and 156: default4Purpose2default4MATLAB Vers
Page 157: dragrectPurpose2dragrectDrag rectan
Page 161 and 162: errordlgPurpose2errordlgCreate and
Page 163 and 164: ezcontourPurpose2ezcontourEasy to u
Page 165 and 166: ezcontourSee Alsocontour, ezcontour
Page 167 and 168: ezcontourff( x,y) 31 ( - x) 2 e- x2
Page 169 and 170: ezmeshPurpose2ezmeshEasy to use 3-D
Page 171 and 172: ezmeshSee Alsoezcontour, ezcontourf
Page 173 and 174: ezmeshcArray multiplication, divisi
Page 175 and 176: ezplotPurpose2ezplotEasy to use fun
Page 177 and 178: ezplot3Purpose2ezplot3Easy to use 3
Page 179 and 180: ezpolarPurpose2ezpolarEasy to use p
Page 181 and 182: ezsurfArray multiplication, divisio
Page 183 and 184: ezsurfcPurpose2ezsurfcEasy to use c
Page 185 and 186: ezsurfcy/(1 + x 2 + y 2 )0.505−0.
Page 187 and 188: feather21.510.50−0.5−1−1.5−
Page 189 and 190: figurePurpose2figureCreate a figure
Page 191 and 192: figureProperty Name Property Descri
Page 197 and 198: Figure PropertiesFigureProperties2F
Page 199 and 200: Figure PropertiesThis close request
Page 201 and 202: Figure PropertiesIf a figure contai
Page 203 and 204: Figure Propertiescontains colors th
Page 205 and 206: Figure PropertiesYou can set the ro
Page 207 and 208: Figure PropertiesTo ensure MATLAB u
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Figure PropertiesProperty ValueA4A5
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Figure PropertiesPointerShapeHotSpo
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Figure PropertiesThere is also a Si
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Figure PropertiesResize{on} | offWi
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Figure Propertiesclick. See uicontr
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Figure PropertiesWindowButtonDownFc
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Figure PropertiesThe information re
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fillIf C is a row vector, fill gene
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fill3If you specify color using C,
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findfigsPurpose2findfigsFind visibl
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findobjSee Alsocopyobj, gcf, gca, g
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fplotExamples Plot the hyperbolic t
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frame2imPurpose2frame2imConvert mov
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gcboPurpose2gcboReturn the handle o
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gcoPurpose2gcoReturn handle of curr
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geta = get(h,'Default') returns all
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getframeMATLAB and that can take ad
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ginputPurpose2ginputInput data usin
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gplotExamplesTo draw half of a Buck
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gridPurpose2gridGrid lines for two-
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helpdlgPurpose2helpdlgCreate a help
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hiddenPurpose2hiddenRemove hidden l
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histExamplesGenerate a bell-curve h
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holdPurpose2holdHold current graph
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im2framePurpose2im2frameConvert ind
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imageimage(x,y,C,'PropertyName',Pro
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imageWhen you write an indexed imag
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imageProperty Name Property Descrip
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Image PropertiesImageProperties2Ima
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Image Propertiesproduces:0.511.522.
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Image Properties• xor - Draw and
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Image Propertiesdefine the ButtonDo
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imagescPurpose2imagescScale data an
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imagescSee Alsoimage, colorbar2-245
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inputdlgPurpose2inputdlgCreate inpu
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ishandlePurpose2ishandleDetermines
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isocapsPurpose2isocapsCompute isosu
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isonormalsPurpose2isonormalsCompute
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isosurfacePurpose2isosurfaceExtract
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isosurfaceSee Alsoisonormals, isoca
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legendlegend_handle = legend return
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lightPurpose2lightCreate a light ob
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lightProperty Name Property Descrip
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Light PropertiesLightProperties2Lig
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Light PropertiesWhen a handle’s v
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lightanglePurpose2lightangleCreate
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linePurpose2lineCreate line objectS
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lineFinally, pop the first line to
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lineProperty Name Property Descript
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lineProperty Name Property Descript
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Line PropertiesCreateFcnstringCallb
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Line PropertiesSetting HandleVisibi
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Line PropertiesMarker Specifierphno
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Line PropertiesZDatavector of coord
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LineSpecLine Style SpecifiersSpecif
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LineSpec• LineWidth - specifies t
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LineSpec10.80.60.40.20−0.2−0.4
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listdlgExampleThis example displays
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loglogExamplesCreate a simple loglo
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materialproperties of all surface a
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mesh, meshc, meshzwireframe with hi
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mesh, meshc, meshzmeshc calls mesh,
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movieExamples Animate the peaks fun
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msgboxPurpose2msgboxDisplay message
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newplotNextPlotreplaceWhat HappensR
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orientPurpose2orientSet paper orien
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pagedlgPurpose2pagedlgDisplay page
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patchPurpose2patchCreate patch grap
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patchColor Data InterpretationYou c
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patch2V2 V31.91.8V51.71.61.51.41.31
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patchRootFigureAxesUicontrolUimenuU
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patchProperty Name Property Descrip
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patchProperty Name Property Descrip
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Patch PropertiesButtonDownFcn strin
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Patch PropertiesThe second diagram
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Patch PropertiesYou can also set th
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Patch PropertiesFaceColor{ColorSpec
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Patch Properties• An n-by-1 matri
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Patch Propertiesprotect GUIs from c
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Patch PropertiesMarker Specifierd^v
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Patch PropertiesYou can also set th
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pbaspectPurpose2pbaspectSet or quer
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pbaspectIt is also interesting to l
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pbaspect0.50−0.520−2−2020.50
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pcolorExamplesA Hadamard matrix has
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peaksPurpose2peaksA sample function
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pieExamplesEmphasize the second sli
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plotPurpose2plotLinear 2-D plotSynt
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plotproduce this graph.3210−1−2
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plot1Plot of sin(Θ)0.80.60.40.2sin
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plot33530252015105010.510−0.5−1
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plotmatrix50−51050−51050−5−
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plotyy10.500−10 1 2 3 4 5 6 7 −
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polarSee Alsocart2pol, compass, Lin
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print, printoptpcmd and dev are pla
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print, printoptDevice-dcdj550-dpain
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print, printoptOption-rnumber-adobe
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print, printoptTroubleshooting MS-W
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print, printoptNotes on Printing In
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printdlgPurpose2printdlgDisplay pri
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questdlgExampleCreate a question di
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quiverExamples Plot the gradient fi
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quiver3Examples Plot the surface no
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ox• For box definition, initialRe
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ectanglevertical curvature can be d
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ectangleThis example creates an ell
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ectangleProperty Name Property Desc
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ectangle propertiesRectanglePropert
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ectangle propertiesEraseMode{normal
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ectangle propertiesHitTest{on} | of
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ectangle propertiesVisible{on} | of
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educepatchThe number of output tria
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educevolumePurpose2reducevolumeRedu
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educevolumeSee Alsoisosurface, isoc
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esetPurpose2resetReset graphics obj
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gbplotPurpose2rgbplotPlot colormapS
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ibbonExamplesCreate a ribbon plot o
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oot objectProperty Name Property De
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oot objectProperty Name Property De
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Root Propertieswhich does not resta
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Root PropertiesLanguagestringSystem
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Root PropertiesShowHiddenHandleson
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osePurpose2roseAngle histogramSynta
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otatePurpose2rotateRotate object ab
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otate3dPurpose2rotate3dRotate axes
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scatter−47.95−48−48.05−48.1
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scatter3Examples[x,y,z] = sphere(16
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semilogx, semilogyPurpose2semilogx,
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setPurpose2setSet object properties
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setparticular figure. When this fig
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shadingAlgorithmshading sets the Ed
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shrinkfacesPurpose2shrinkfacesReduc
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shrinkfacesAfter Shrinking210−1
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sliceRemarks The color drawn at eac
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sliceThe following picture illustra
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slice21.510.50−0.5−1−1.5−22
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spherePurpose2sphereGenerate sphere
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spinmapPurpose2spinmapSpin colormap
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stairs10.80.60.40.20−0.2−0.4−
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stemExamplesCreate a stem plot of 1
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stem3:21.510.500.50.40.30.20.1000.2
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stream3Purpose2stream3Compute 3-D s
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streamlineor[stepsize, max_number_v
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subplothandle, so it is an error to
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subvolume• A 100-element grayscal
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surf, surfcAlgorithmAbstractly, a p
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surf, surfcColor a sphere with the
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surf2patchAlso, because patch is a
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surfaceRemarksUnlike high-level are
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surfaceObjectHierarchyRootFigureAxe
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surfaceProperty Name Property Descr
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surfaceProperty Name Property Descr
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Surface PropertiesButtonDownFcn str
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Surface PropertiesEdgeColor{ColorSp
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Surface PropertiesFaceColorColorSpe
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Surface Propertiesgetframe, or paus
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Surface PropertiesMarkerSize size i
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Surface PropertiesVertexNormals vec
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surfllight source, use surfl(X',Y',
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surfnormPurpose2surfnormCompute and
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terminalPurpose2terminalSet graphic
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texlabelPurpose2texlabelProduce TeX
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textPurpose2textCreate text object
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textannotate the point at (pi,0) wi
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textProperty Name Property Descript
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textProperty Name Property Descript
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Text PropertiesCreateFcnstringCallb
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Text PropertiesExtentposition recta
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Text PropertiesWhen a handle is not
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Text PropertiesPosition[x,y,[z]]Loc
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Text PropertiesCharacterSequenceSym
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Text PropertiesVerticalAlignment to
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titlePurpose2titleAdd title to curr
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trimeshPurpose2trimeshTriangular me
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uicontextmenuPurpose2uicontextmenuC
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uicontextmenuWhen the user extend-c
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uicontextmenu Propertiesdefines a d
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uicontextmenu Propertieswhere vecto
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uicontrolString property (even thou
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uicontrolProperty Name Property Des
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uicontrolProperty Name Property Des
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uicontrolObjectHierarchyRootFigureA
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uicontrol Propertiesinterrupting ca
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uicontrol Properties• on - The ui
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uicontrol PropertiesFixedWidthFontN
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uicontrol Propertiesdefined, that c
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uicontrol Properties• Toggle butt
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uicontrol PropertiesFor multiple li
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uicontrol PropertiesSet the Value p
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uigetfileSee Alsouiputfile2-557
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uimenuYou can set and query propert
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uimenuExamplesThis example creates
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uimenu Propertiescallbacks; see the
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uimenu PropertiesForegroundColor Co
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uimenu Propertiescharacter while th
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uiputfilePurpose2uiputfileInteracti
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uiresume, uiwaitPurpose2uiresume, u
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uisetfontPurpose2uisetfontModify fo
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viewPurpose2viewViewpoint specifica
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viewaxes graphics object properties
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viewmtxT = viewmtx(az,el,phi,xc) re
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viewmtxTransform the cube vectors t
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waitforPurpose2waitforWait for cond
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warndlgPurpose2warndlgDisplay warni
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waterfallExamplesProduce a waterfal
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xlabel, ylabel, zlabelPurpose2xlabe
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xlim, ylim, zlimExamplesThis exampl
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zoomzoom(factor) zooms in or out by
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List of CommandsAList of Commands
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List of CommandsFunction Namesprint
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IndexAAcceleratorUimenu property 2-
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IndexLight property 2-265Line prope
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IndexSurface property 2-486Text pro
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IndexImage property 2-239Light prop
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Indexmesh 2-298meshc 2-298MeshStyle
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Indexwith non-normal EraseMode 2-23
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Indexcreating 2-474defining default
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IndexView, Axes property (obsolete)
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MATLAB Function Reference (Volume 2: Graphics)

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