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Chapter6:CreatingDrawingswithDraw
3. Finally,defineacolourschemefrombottomtotop.Select,forexample,adarkeryellow
forthebeginningcolour(bottom)andalighteryellowcolourfortheendcolour(top).
4. ClickOKtocreatetheduplicates.
Cross­FadingBetweenTwoObjects
Thecross­fadingfunctionisonlyavailablefordrawingsinDrawandnotinImpress
documents.Toinsertintoapresentationanobjectthatwascreatedbycross­fadingtwo
objects,copyitfromthedrawingintothepresentationdocumentbywayoftheclipboard.
Intheprocessofcross­fadingatransitionbetweentwoobjectsiscalculatedandthe
incrementswillbepositionedonthepage.Intheincrements,theform,orientation,and
colouroftheobjects,aswellasotherattributes,areadjusteduniformly.
1. Forexample,inanemptydrawingdocument,drawanobjectatthebottomleftand
anotheroneattheupperright(usetwodifferentcolours).
2. Selectbothobjects.
3. SelectthecommandEdit>Cross­fading.Adialogueappearswherefurthersettingscan
bedefined.
4. ClickOK.
Drawcalculatestheincrementsanddisplaystheresults.
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Chapter6:CreatingDrawingswithDraw
Thisnewobjectisagroupwhichconsistsofthespecified
numberofindividualobjects.EnterthegroupbypressingF3
andthenedittheindividualobjects.TheModifymenuinDraw
containsallthenecessarycommandsforworkingwithgroups
andthesefunctionscanbealsofoundinImpressunderthe
Format>Groupmenucommandorinthecontextmenu.
FurtherinformationcanbefoundinHelp.
1. WorkingWithaGroupofObjects
Severalobjectsatonetimecanbeselected,grouped,combined,merged,subtractedand
intersected.
•
Selectingseveralobjectsatthesametimehasatemporaryeffect;i.e.wheneverthemouse
isclickedelsewhereonthepageorslide,thegroupedareaisdeselected.
•
Groupingandcombiningarevaliduntilthegrouporthecombinationisdeselectedusing
thecommandfromthecontextmenuortheModifymenu.
Thesecommandscanalsobeusedtogrouptogetherseveralgroups,addacombinationand
combinetheresultsasagrouporcombination.
GroupingObjects
Severalobjectscanbecombinedintoagroup.Todothis,selectthemtogether,right­clickto
bringupthecontextmenuandchooseGroup.Anyandallchangesmadetoagrouphavean
effectonallobjectsinthegroup.Inparticular,groupscanbemoved,rotated,etc.asasingle
object.
Forexample,indrawingabicycle,firstconstructawheel,composedofatire,rim,spokes,
andhub,andthengrouptheseobjectstogether.Thismakesiteasytorotatethewheel,
duplicateit,andmovethesecondwheeltotheappropriateposition.Finally,drawtheframe
andtherestofthebicycle,andformanewgroup.
Toeditanobjectthatispartofagroup,thereisnoneedtoredefinethegroup.Usethe
Entergroupcommandwhichallowseditinganyobjectinthegroup.Wheneditsare
completed,
EnteringGroups
Enteragroupbyfirstselectingit,eitherbyclickingitorbyusingthekeyboard.Once
selected,theusercandecidewhethertoemploythecontextmenucommand,theF3keyor
double­clickingthegrouptoenterit.
ExitingGroups
Exitingagroupmaybeaccomplishedinthesethreeways:usingamenucommand,thekey
combination
Ctrl+F3,ordouble­clickingoutsidealloftheobjectsinthegroup.Thegroupremains
selecteduponexit;thusmakingitpossibletoquicklyenterandexitagroupusingthe
keyboard.
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Chapter6:CreatingDrawingswithDraw
NavigatingBetweenObjectsofaGroup
UsingtheTabandShift+Tabkeystheusercanmoveforwardandbackwardalongthe
rowofobjectsinagroupeditedwithF3oronapage.Ifthekeysarepressedagainonafinal
objectwhilegoinginonedirection,thefirstobjectselectedwillappearnext.
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Chapter6:CreatingDrawingswithDraw
CombiningObjectsandConstructingShapes
InDrawandImpressgraphicobjectsmaybecombinedindifferentways.Severalsingle
objectscanbebroughttogethertocreatenewobjectsbyusingBooleansetoperatorsonthe
originalgeometry.
CombiningObjects
1. Selectseveralobjects.
2. ChooseCombinefromthecontextmenu.
Incontrasttogroups,whichconsistofsingleobjects,acombinationfusesthecomponent
objectsintoonesinglenewgeometricobjectwithitsownnewproperties.Thecombination
maybeundoneagainlater,buttheindividualobjectsmaynotberecoverable.
Theusershouldrecognizethepropertythatstandsoutthemostinacombinationwhenthe
individualobjectsoverlap.Inthiscase,thecombinationistheresultoftheBoolean/logical
operatorXOR,andshapes,discussedlater,areotherlogicalcombinations.Theareasof
overlaparetheoneswhichstandoutthemostinacombination,astheywillbeconvertedinto
“holes”.
Intheillustration,severalobjectsareshowntotheleftastheyarebeforebeingcombined,
andattherightafterbeingcombined.Thecombinationisgiventheattributesoftheobject
farthesttotheback(i.e.undermostobject).
ConstructingShapes
ThecommandsShapes>Merge,SubtractandIntersectalsoformanewgeometricobject
outoftheoriginalobjects.Thenewobjectcomesintobeingthroughtheuseoflogical
amountoperators(booleanO)onthesourcegeometries.
1. Selectseveralobjects.
2. ChooseShapesfromthecontextmenu.Inthesubmenu,chooseMerge,Subtractor
Intersect.
Inthefollowingillustrationstheoriginalshapesareshownontheleftandtheresultonthe
right.
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Chapter6:CreatingDrawingswithDraw
Shapes­Merge
Theselectedpolygonsaremergedsothattheymakeoneobject,the
surfaceofwhichisthesumofalltheparts(BooleanOR).
Shapes­Subtract
Allotherpolygonsselectedaresubtractedfrom
theundermostpolygon.Thisentailstheother
polygonsfirstbeingmergedandthensubtracted
fromthepolygonpositionedunder/behindallthe
others.Holesaretakenintoaccount.Logically
thisoperationcorrespondstothefollowing
formula:A>(B1|...|Bn)
Shapes­Intersect
Theselectedpolygonsarejoinedintoonesinglepolygon
thatcorrespondstotheintersectionarea(BooleanAND).
Onlytheareawhereallpolygonsoverlapremains.
ChoosingShapes>SubtractandShapes>Intersectalsopermitscuttingpartsoutofa
bitmap.Theillustrationbelowshowsexamples.
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VB.NET PDF - View PDF with WPF PDF Viewer for VB.NET
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Chapter6:CreatingDrawingswithDraw
GraphicObjectsinDrawingsandPresentations
BothDrawandImpressuseavectorgraphicformat.However,pixelgraphicsorbitmap
graphicsmayalsobeinsertedintopresentationsordrawingsanddocumentsorcertain
sectionsofadocumentcanbeexportedinapixelgraphicformat.
InsertingBitmaps
BitmapimagescanbeinsertedinanyWriter,Calc,DraworImpressdocument.
1. ChooseInsert>Picture.
2. Selectthefile.WiththeFiletypefielduserscanlimittheselectiontocertainfiletypes.
3. ChecktheLinkboxtohyperlinktotheoriginalfilewhereembeddingisnotneeded.
IftheLinkboxischecked,wheneverthedocumentisupdatedandloadedthebitmap
imageisreloaded,andanyeditingsteps,thathavebeenappliedtothelocalcopyofthe
imageinthedocument,arere­appliedandtheimageisdisplayed.
IftheLinkboxisnotchecked,thecopycreatedwiththefirstinsertionisembeddedand
used.
4. ClickOpentoinserttheimage.
EditingBitmaps
Whenabitmapimageisselected,theobjectbaroffersthetoolsforeditingtheimage.Onlya
localcopyiseditedinthedocument,evenifanimageisinsertedasalink.
Theobjectbarmaylookslightlydifferentdependingtothemodulebeingused.The
illustrationshowstheobjectbarinDraw:
AnumberoffiltersarelocatedontheFilterfloatingtoolbar,thatthe
usercanopenwiththeicononthefarleftoftheobjectbar.
Someofthefiltersopenanotherdialoguewhenstarted,andtheusercan
usetheseoptions,forexample,toselecttheintensityofthefilter.
Textandgraphicscanbeaddedtothebitmapimagebyselectingtheseobjectstogetherand
exportingtheselectionasanewbitmapimage.
ApplyingTexttoBitmaps
ToapplytexttoapixelimageandsaveitinJPEGformat,forexample,followthesesteps:
1. Openanewdrawingdocument.
2. InsertthepixelimagebychoosingInsert>Picture.
3. Unselecttheimagebyclickingsomewhereelseinthedocument.
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C# Image: Select Document or Image Source to View in Web Viewer
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Chapter6:CreatingDrawingswithDraw
4. OpentheTextfloatingtoolbarfromtheMaintoolbarandselectanoption;forexample,
theFitTexttoFrameicon.
5. Drawaframearoundthepixelimageandentersometextinsidethisframe.
6. Ifdesired,selectthistextandassignanothercolourtoit.Thebackgroundofthetextis
automaticallytransparent.
7. Selectthepixelimageandthetextbydrawingaframearoundboth.TheStatusbarwill
read“2drawobjectsselected”.
8. ChooseFile>Exportand,intheExportdialogue,
9. selectthefiletype“JPEG­JointPhotographicExpertsGroup”
10.Enteraname.
11.ChecktheSelectioncheckboxtoexportonlytheselectedobjects.
12.ClickSave.
AnotherdialoguepermitssettingoptionstodefinethequalityoftheJPEGimage.Remember
thatthehigherthequality,thelargerwillthefilebe.
Whenagraphicobject(forexample,aninsertedPixelimage)isselectedinImpressorDraw,
thegraphicobjectbarwillbeautomaticallybedisplayed.Thisbarenablesmodificationof
thecolourtone,brightnessandcontrastofthegraphicobject.
Changingthetransparencyvalueofgraphicobjectsisalsopossible.Atahighertransparency
valuesagraphicobjectbecomessee­through,andobjectslyingbehinditwillbevisible.
WhentheworkissavedasanOpenOffice.orgdocument,thetransparencyissavedtoo.
NOTE:Whenexportedasagraphicformat,transparencyisonlysavedwherethegraphicformatsupportsthe
transparencyandthisfunctionisenabledatthetimeofexport.
SavingBitmaps
Savingchangestoabitmapimageasanimagefile,forexampleinoneoftheGIF,JPEGor
TIFFfileformats,isonlypossibleinDraworImpressbyselectingandexportingthebitmap
image.Thefollowingprovidesastep­by­stepprocedure:
1. Selectthebitmapimage.
Alsoselectanyadditionalobjectsasnecessary.PressingtheShiftkeyforeachselection
orbyopenaframearoundallobjects,toinclude,say,textwiththebitmapimage.
2. ChooseFile>Exporttoopenthedialogue.
3. IntheFiletypefieldselectthefileformatdesired.ForexampleGIF,JPEGetcetera.
4. Toonlyexporttheselectedobjects,checktheSelectionbox.
IfSelectionisnotchecked,theentirepageofthedocumentisexported.
5. Enteranameforthefile.
6. ClickSave.
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Chapter6:CreatingDrawingswithDraw
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Chapter6:CreatingDrawingswithDraw
WorkingWithcolours
Theobjectbarhasalistboxfromwhichtochoosethecolourforaselectedobjectfroma
numberofpredefinedcolours.Thecolouroftheborderlinecanbechosenindependentlyof
thecolourofthefilling.
ThecolourBar
Ifwantedorneeded,thecolourbarcanbedisplayedontheedgeofadrawingor
presentation.Thecolourbaroffersachoiceofcolours.Selectedobjectscanbecolouredby
simplyclickingonacolour.Todisplaythecolourbar,selectView>Toolbars>colourBar.
Thecolourbardisplaysallpredefinedcolourswiththeirrespectivenamesinthesameorder
asinthelistboxoftheObjectbar.User­definedcoloursappearattheendofthecolourbar
andthebottomofthelistbox.
Thefieldattopleftofthecolourbarisforthecolour“Invisible”.
Changethesizeofthecolourbarusingthemouse.Alternatively,holddowntheCtrlkey
anddouble­clickinthegraypartofthecolourbartoobtainamovable,variable­sizewindow
thatcanbemanipulatedinthesamewayasmostotherwindows.Forexample,itcanbe
movedbydraggingthetitlebaranditssizechangedbydraggingtheedgesorcornersofthe
window.Todockthewindowagain,holddownCtrlanddouble­clickonagrayareaofthe
floatingcolourbar.
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Chapter6:CreatingDrawingswithDraw
DefiningCustomcolours
Anynumberofcolourscanbedefinedbytheuser,havenamesassignedandbesavedin
colourpalettefiles.
1. Inadrawingdocument,chooseFormat>Area...toopentheAreadialogue.
2. Inthedialogue,clickthecolourstab.
Thisprovideseverythingneededtomodifythecolourofaselectedobject.Here,theusercan
alsodefineandorganizenewcolours.
Toapplyacolourthatisnotyetinthecolourpalette,firstdefinethenewcolourandassigna
nametoit.
Note:Modificationstothestandardcolourpalettearepermanent.Thesearesavedautomatically,andare
irreversible.Thisshouldnotpresentproblemsifonlyaddinganewcolourtothepalette,butitcancreate
difficultiesifthestandardcoloursarechanged.
1. Todefineanewcolour,thebestthingtodoischooseacolourfromthecolourpalette
whichresemblesthenewcolour.Itwillbedisplayedintheupperofthetwopreview
boxes.
2. Thelistboxprovidestwosettings,RGBandCMYK,fordefiningthecolour.Selectthe
colourmodelinthelistboxthatcorrespondstowhatisneededforthiscolour.
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