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Objects
Usethetoolsonthemaintoolbartoaddshapestoyourdocuments.Youcantearoffthepalettesandplacethem
whereyouwantwithinyourdrawingwindow.Youcanrotateanobjectusingitsrotationhandleandscaleordistortan
objectbyusingtheresizeordistortionhandles.
Arrows
Youcanusearrowstoshowtheconversionofreactantstoproductsandtoindicateelectronflow.Youcancustomize
arrowsnotonlyforlengthandangle,butforarrowheadwidthandshape.Youcanalsodraganarrowfromitsmiddleto
createanarcofanylength.Whenyoucreateanarc,theangleofthearrowismodified.
Whenyoumouse-overanarrowwiththeLasso,Marquee,oranArrowtoolselected,theadjustmenthandlesappear,
forexample:
Dragtheadjustmenthandlestochangethearrowlength,angle,orshape.Whenchangingtheangleofanarrow,you
arerestrictedtomultiplesof15°ifFixedAnglesisenabled.Holddownthe<Alt>keytodragtoanyangle.Youcan
alsocreateanarrowbydrawinganarbitrarysplineusingthepentools,andaddinganarrowhead.
ArrowHeads
Therearethreearrowheadshapes:solid,hollow,andangled.Tochangetheshape,right-clickanarrowandchoose
theshapefromthecontextmenu.
Arrowheadsshapesare:A)Solidarrowhead;B)Hollowhead;andC)Angledhead.
ArrowTypes
ChemBioDrawoffersavarietyofarctypesandarrowtypes,suchas,crossed(no-go)arrows,equilibriumarrowsof
unequallengths,andellipticalarcs.
ArcArrows
Therearetwowaystocreateanarcarrow:
1. Clickanddragthearcadjustmenthandleofastraightarrow.
Figure6.5:A)Arcadjustmenthandle
2. SelectanarcarrowfromtheArrowspalette.
Youcancustomizearcarrowsaseasilyasstraightarrows.Someexamplesare:
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a. Toundoallchangesmadetoanarrowexceptforthechangeinlength,clickthearrowwiththesamearrowtool.
b. Clickanunmodifiedarrow,oronethathashadonlyitslengthchanged,toreverseitsdirection.
HollowArrows
Youcanrotatehollowarrowsandchangetheirlengthandwidth.Youcanalsomodifytheangleandcreatehollowarc
arrows,justaswithregulararrows.
Youcanmodifyarrowswithacontextmenucommand.SomeofthesecommandsarealsofoundontheCurves
menu.Usethecontextmenutocreatearrowsforwhichtherearenotools,suchasbold-dashedordipole.
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ConnectingArrows
Youcanconnectanewarrowtoanexistingarrowateitherendoratthemidpoint.
Note:Theterms“left”and“right”inthecontextmenuarerelative,andrefertothedirectionthearrowheadispoint-
ing.
Forexample,todrawanewarrowstartingatthemidpointofanexistingarrow:
1. SelectfromtheArrowspaletteanarrowtypeforthenewarrow.
2. Placeyourcursoroverthemidpointoftheexistingarrowandholddownthe<shift>key.  Theadjustmenthandle
changestoasmallhighlightedrectangleandthecursorchangestothe'+'symbol.
3. Whilepressingthe<shift>key,drawthenewarrowstartingfromtheexistingarrow’smidpoint.
Youcanalsodragexistingarrowsandconnectthem.Hereareafewexamples:
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Finally,arrowscanberotatedusingtheStructurePerspectivetool,aswellastheLasso,orMarquee.Formoreinform-
ationonusingtheStructurePerspectivetool,see"StructurePerspective"onpage125.Combiningthesemethods
letsyoudrawanunlimitednumberofarrows.
EquilibriumArrows
Withequilibriumarrows,changingthelengthchangesbotharrowsproportionately;changingtheshapeofthearrow-
headchangesbotharrowheadsidentically.
Tochangethelengthofonearrow,holddownthe<Alt>key.Twonewadjustmenthandlesappear.Whenadjusting
onearrowofanequilibriumarrow,thearrowcannotbeextendedbeyonditsoriginallength.
CurvedArrows
YoucancurvemostarrowsfoundontheArrowstoolbar.Afteryoupasteanarrowinyourdrawing,clickanddragthe
selectionpointinthemiddleofthearrow.
Asyoudragtheselectionpoint,theangleofthearcappears,measuredindegrees.
ColoredArrows
Tocoloranarrow:
1. Inthedrawingwindow,selectthearrowtocolor.
2. SelectacolorfromtheColormenu.
ColoringBlockArrows
Forblockarrows(thosethatarenotmadeofsimplelines),youcanapplycoloredeffectsusingthefilled,faded,and
shadedoptions.
Toapplycoloreffectsonblockarrows:
1. SelectablockarrowfromtheArrowspaletteandright-clicktheblockarrow.
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2. SelectacolorfromtheColormenu.
3. Fromthecontextmenu,chooseeitherFilled,Faded,orShaded.
DrawingElements
Drawingelementsaresimpleshapes,suchas,circlesandrectangles.
1. Togroupdrawingelementswithastructure,navigatetoObject>Group.See"GroupingObjects"onpage85.
2. Tomoveanobject,selectit,andclickanddragitwithaSelectiontool.See"MovingObjects"onpage83.
CirclesandOvals
Todrawacircleoranoval:
1. SelectoneoftheCircleorOvaltools.
2. Pointwhereyouwantthecenterofthecircleoroval.
3. Dragoutwardfromthecenter.
ResizingandRotating
Youcanresizeandreshapeovalsandrectanglesforbothlengthandwidth.Circleshaveonlyaradiusadjustment.
Rectanglesalsohavecornerhandlesthatproportionatelyadjustlengthandwidth.
Figure6.6:A)rectanglecornerhandles
1. Pointtoashapewithitsdrawingtool,oraselectiontool,todisplayadjustmenthandles.
2. Clickanddragtomodifytheshape.
Lines
Lineslooksimilartobonds,butbehavedifferently:
Linesarenotincludedinchemicalinterpretation.
Linesthatcrossappearsolid,bondsdonot.
Todrawaline:
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1. IntheDrawingElementstoolbar,selectalinetool.
2. Clickanddraginthedrawingwindowwhereyouwanttheline.
Arcs
Youcandrawsolidordashedarcsofdifferentangles:90°,120°,180°,and270°.
Todrawanarc:
1. Dooneofthefollowing:
InChemDrawStandard,pointtoanArctoolanddraginthepalettetoselecttheangle.
InotherChemBioDrawapplications,pointtotheDrawingElementstoolanddraginthetoolpalettetoselectthe
angle.
2. Dragfromlefttoright(foraconvexarc),orfromrighttoleft(foraconcavearc).
EditingArcs
Toresizeorrotateanarc:
1. PositiontheArctooloverthearc.Dragpointsappearontheendsandinthemiddle.
2. Drageitherendofthearctochangeitslength.
3. Dragthecenterpointtochangethecurvature.
4. Useaselectiontooltochangeitssizeororientation.
NavigatetoView>ShowInfoWindowtodisplaytheinfowindow.TheInfowindowindicatesthedistancebetween
theendsofthearcandtheangletheclockwiseendmakeswiththeX-axis.
Whenyoudragtheresizehandle,theInfowindowindicatesthepercentageasenlargedorreduced.Whenyoudrag
theRotationhandle,theInfowindowindicatesthedegreerotated.FormoreinformationaboutInfowindow,see"The
InfoWindow"onpage84.
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Brackets
Bracketsincludesbraces{ },brackets[ ],andparentheses( ).Bracketsarecommonlyusedtoillustratepolymers.For
moreinformationonpolymers,see"Polymers"onpage243.
Singlebrackets
Youcandrawasinglebracketinanyorientation.SelectasinglebrackettoolfromtheBracketspalette.
1. Pointwhereyouwantthebrackettostart.
2. Dragfromoneendofthebrackettotheotherend.
PairedBrackets
Pairedbracketscanbeplacedonlyinaverticalorientation.Arectangleorboxdefinestheirposition.
Todrawpairedbrackets:
1. SelectapairedbrackettoolfromtheBracketspalette.
2. Pointwhereyouwantacornerofthebracket.
3. Dragdiagonallyfromonecorneroftheboxtotheoppositecorner.
Daggers
Todrawadagger:
1. SelectadaggertoolfromtheBracketspalette.
2. Clickinthedrawingwindow.
Note:Toresizeadagger,selectthedaggerandclickanddragoneofitsresizehandles.
FramingObjects
Youcanencloseyourdrawingsorgroupstructureswitharectangle,brackets,parentheses,orbraces.
Toencloseyourobject:
1. Selectthedrawingtoenclose.
2. NavigatetoObject>AddFrameandselectaframetype.
PenTools
Thepentoolsareusefulfordrawingfreehandcurvesandshapes.
Todrawacurve,dooneofthefollowing:
SelecttheDrawCurvetoolfromthePenToolspaletteontheMaintoolbarandclickanddragyourcursoracross
thedrawingwindow.
NavigatetoView>OtherToolbars>PenTools.SelecttheDrawCurvetool,andclickanddragyourcursor
acrossthedrawingwindow.
EditingCurves
YoucaneditacurvebyselectingitandmanipulatingitwithEditCurvetool.
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Toselectanexistingcurveforediting:
1. SelecttheEditCurvetoolfromthePenToolspaletteontheMaintoolbar.
2. Pointatthecurve.Thecursorwillchangefroma“+”toanarrowwhenyouarepositionedcorrectly.
3. Clicktoselectthecurve.Thecurveisselectedandadjustmenthandlesappearalongthecurve,asshownbelow:
Thecursorappearsasahandwitha“+”signinside
.However,whenthecursorispositionedexactlyoverthe
pointsonthecurve,the'+'symboldisappearsandthecursorappearsasahand.
ChangingtheShapeofaCurve.Usethesquarehandlesattheendofthecurvetoincreaseordecreasethelength
ofthecurve.Usetheendpointsofthedirectionlinestochangethedirectionofthecurve.
Tochangetheshapeofacurve:
Dragthedirectionlinestocreatetheshapeyouwant.
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AddingaSegment.YoucanaddasegmenttoanexistingcurvebyselectingthecurvewithEditCurvetool,and
clickinginthedocumentwindowwiththeEditCurvetoolselected.Asegmentisaddedtotheendofthecurve.
FreehandShapes
Tocreateaclosedfreehandshape,drawacurveandnavigatetoCurves>Closed.Toaddcurveproperties,select
Filled,Faded,orShadedundertheCurvemenuorintheCurvetoolbar.Curvescanalsohavearrowheads,which
letsyoucreatearbitrarily-shapedarrows.Toaddcolor,selectacolorintheColormenu.
Figure6.7:Afreehandcurvewithdifferentproperties;A)Asimplecurve;B)enclosed;C)filled;D)faded;andE)
shaded.
SelectingObjects
UsetheLassoforfreehandselectionsandtheMarqueetoselectrectangularregions.
Whenyouselectastructureorobject,theselectiondisplayswithacoloredframearoundit.Theframeincludes
handlesforrotating,distorting,andresizingyourselection.
TheLassoTool
UsetheLassotooltomakeafreehandselectionofirregularareas.
ToselectobjectsusingtheLassotool:
1. SelecttheLassotool.
2. Pressthemousebuttonwhilethepointerisnotoveranyobject.
3. Dragaroundpartofastructureorotherobject.
Asyoudrag,alineappearsthatdefinestheselectionarea.Bonds,structures,orotherobjectsareselectedonlyif
theyareentirelywithinthisarea.
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TheMarqueeTool
UsetheMarqueetooltoselectobjectsandstructureswithinarectangulararea.
1. SelecttheMarqueetool.
2. Clickanddragdiagonallyoverthestructuresorotherobject.
Asyoudrag,arectangleappearsthatdefinestheselectionarea.Objectsareselectedonlyiftheircenter,oramajor
portionoftheobject,ortheobjectisentirelywithinselectionrectangle.
Tosetoneselectiontooltobehaveliketheother,clickeitheroneofthetoolswhilepressing<Alt>.
Totoggleaselectiontoolandthelastdrawingtoolused,press<Control>+<Alt>+<Tab>.
SelectingEntireStructures
Toselectanentirechemicalstructure,double-clickabondoratominthestructureusingaselectiontool.
Ifthechemicalstructureorotherobjectispartofagroup,thegroupisselected.
SelectingObjectsbyClicking
1. SelecttheLassoorMarqueetool.
2. Pointtoanobjectinadocumentwindow.
Ahighlightboxappearsoverthepointedobject.
3. Clicktheobject.
Theselectedobjectsappearwithintheselectionrectangleandthecursorchangestoahand.
Note:Youcanalsoselecttheindividualobjectsinagroup.See"GroupingObjects"onpage85.
SelectingMultipleObjects
Whenyouselectmultipleobjects,eachobjectdisplaysaselectionbox.
Toaddmoreobjectstotheselection,press<shift>andselecttheotherobjects.
Toselectallobjects,navigatetoEdit>SelectAll.
DeselectingAllObjects
Todeselectallobjects,dooneofthefollowing:
Clickanemptyareaoutsidetheselectionrectangle.
Press<esc>.
Selectadifferenttool.
Selectanotherobjectwithoutholdingdownthe<shift>key.
DeselectingOneObject
Todeselectoneofseveralselectedobjects,holddownthe<shift>keyandclicktheobjectwithaselectiontool.
Note:Asshowninthefigurebelow,objectsmayappearwithinthebordersoftheselectionrectangle,butnotbe
selected.Notethatthecentralringintheexamplebelowisnotselected.
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