Manual For Dia.docx

Manual For Dia.docx

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ManualForDia

DiaSoftwareManual

1.Introduction

Dia isanapplicationforcreatingtechnicaldiagrams.ItsinterfaceandfeaturesarelooselypatternedaftertheWindowsprogramVisio.FeaturesofDiaincludemultiple-pageprinting,exporttomanyformats（EPS,SVG,CGMandPNG）,andtheabilitytousecustomshapescreatedbytheuserassimpleXMLdescriptions. Dia isusefulfordrawingUMLdiagrams,networkmaps,andflowcharts.

Thisdocumentdescribesversion0.97of Dia.

Figure 1.1. SampleFlowchartDiagram

1.1Whatcanyoudo?

Dia isadiagrammingapplicationthatcanbeusedtomakealargevarietyofdiagrams. Dia iseasytolearnandflexibleenoughtoallowpoweruserstocreatehighlycustomizeddiagrams.Belowaretwosimpleexamplesofdiagramsthatcanquicklybecreatedusing Dia.

1.2StartingwithDia:

 Diatabbeddiagramming

1.3CreatingaCanvas:

Alldiagramsaredrawnintheirown canvas.WhenyoufirststartDia,ablankcanvasiscreatedautomatically.Atanytime,youcancreateanewcanvasbyselecting File->NewDiagram.Thecanvasmaybecustomizedinvariousways,suchaschangingthebackgroundcolororgridlines.

DiastartupshowingblankcanvasaboveandToolbox.

Figure 1.3. DiaStartup

1.4MakingaDiagram

1.Adiagramismadeupofobjects.Objectsareshapesorlinesthatcanbedifferentcolorsandsizes.Objectscanbesimplelinedrawings,text,orfull-colorpictures.Someobjectsallowtexttobeenteredinsidetheshape.

UsingDiatocreateadiagramiseasy.TheToolboxcontainsapaletteofpredefinedobjects,includingsimpleshapes,lines,andspecializedobjects.Toaddanobjecttothecanvas,simplyclickonthedesiredobject'siconontheToolboxandthenclickonthedesiredpointonthecanvas.Theobjectwillappearonthecanvaswhereyouclicked.

2.Anobjectcanbemovedbyclickingontheobjectanddraggingthemouse.Theobjectcanberesizedbyclickinganddraggingoneoftheobject'sgreenorred"handles".

Objectscanbeconnectedusinglines.Justdrageachendofalinetoanyconnectionpoint（smallblue"x"）onanobject.Onceobjectsareconnected,theycanbemovedandthelinestretchestokeepthemconnected.

3.IntheToolbox,youcandouble-clickonanyobject'sicontoviewandedittheobject'sdefaultproperties.Thisallowsyoutocustomizevariousdefaultpropertiesofeachobject.

Forobjectsthatincludetext,youcancustomizethetextalignmentandfontproperties.Forstandardshapes,youcancustomizethetransparency,thecornershape,andtheaspectratio

Diaincludesasetofstandardshapeandlineobjects.Diaincludesalargenumberofpredefinedobjectsforvarioususes.Theseincludeflowcharts,UMLdiagrams,networkdiagrams,andmanyothers.

4,ManycommontasksinDiarequireselectingoneormoreobjects.Diaincludesanumberofwaystoselectobjectsquickly.

Diacanbecustomizedinanumberofways.

Layerscreatemultiple-imagessotheyareoneimage.Bydoingthis,ausercaneditonelayerwithoutworryingaboutaffectinganyoftheotherlayers.

Diaisdesignedtomakeaddingnewuser-definedshapesveryeasy.

1.5.SavingandPrintingYourDiagram

Diaprovidesthenormalsaveandprintoptions,locatedontheFilemenu.Selectingthe File -> PageSetup allowsyoutosetthepapersize,orientation,andprintmargins.Thisalsoallowsyoutochoosewhethertoprintthediagramtoscale（enteredinpercent）ortofitthediagramtoaspecificsize（incentimeters）.

Diasupportsexportingtonumerousformatsforexcellentwebpublishing.Someoftheminclude:

∙ComputerGraphicsMetafile（.cgm）

∙EncapsulatedPostscript（.eps）

∙PortableDocumentFormat（.pdf）

∙PortableNetworkGraphics（.png）

∙ScalableVectorGraphics（.svg）

2.ObjectAndToolBox

Fig:

2.1Diatoolbox

When Dia isexecuted,twowindowsopen:

thecanvas,whichcontainsthediagram,andtheToolbox,whichcontainstheobjectpalettesandothercontrols.TheToolboxisdividedintothreeregions.Thetopregioncontains14buttons.Thefirstthreearecontrolsusedtoadjustthediagram.Thenext11aretheiconsforthebuilt-inbasicobjects.

ThemiddleportionoftheToolboxcontainstheselectedSpecialObjects.Thisisusedtoselectamongthemanybuilt-inobjectsheetssuppliedwithDia,suchasUML,Flowchart,Network,etc.

ThebottomportionoftheToolboxcontainsspecialcontrolsthatsetdefaultpropertiesforobjectsplacedonthecanvas.Theseincludeforegroundcolor,backgroundcolor,andlinewidth.Therearealsothreecontrolsthatsetthedefaultpropertiesforlineobjects.Thesearebeginningarrowstyle,endingarrowstyle,andlinestyle.

ModifyControl:

Figure 2.2 ModifyControl

TheModifycontrolisthedefaultsettingwhenusingDia.Thiscontrolallowsyoutoselectoneormoreobjectsonthecanvas.Afteranobjectisaddedtothediagram,theModifycontrolisautomaticallyselectedforyou.ThismakesiteasytoaddanobjectandthencontinueworkingwithouthavingtoreselecttheModifycontrol.

TexteditingControl:

Figure 2.3. TexteditControl

TheTexteditcontrolisnewwithDiafromversion0.97-itindicatesbeingintexteditmode.Togetherwithanappropriateobjectselectionitisonewaytostarttextmodification.

Anobjectsupportingin-canvastexteditingcanbeintwodifferentselectionmodes.Thenormalselectionisthesameforallobjects,itallowstomanipulatetheobjectsposition,groupingetc..Someobjectcanenterasecondselectionmode,whichallowstoedittheirtextfromthecanvas.

ScrollControl:

Figure 2.4. ScrollControl

TheScrollcontrolisusedtomovearoundthediagram.Whenthiscontrolisactive,themousepointerchangestoahand.WhentheScrollcontrolisactive,youcanscrollaroundthediagrambyclickinganywhereonthecanvasanddraggingthemouse.Thediagramscrollswithinthecanvaswindow.TheScrollcontrolstaysactiveuntilyoupressoneoftheothercontrols.

SpecialObjects:

OntheToolbox,justbelowthebasicobjecticons,isadrop-downlistboxthatallowsyoutoselectasheetofspecialobjectstobeincludedinthediagram.Asyoucanseefromthescreenshotabove, Dia providesalargenumberofspecialobjects.Touseaspecialobject,firstselectthedesiredsheetusingthisdrop-downlistbox.Then,justclickonthedesiredobjectandclickonthecanvastoinserttheobject. 

DefaultColor,LineWidth,andLineStyle

Belowthespecialobjectspalettearecontrolsforsettingthedefaultforegroundandbackgroundcolor,linewidth,andlinestyle.Thesecontrolsallsetdefaultpropertiesfornewobjectsbeingaddedtothecanvas.Theydonotaffectthepropertiesofexistingobjectsalreadyonthepalette.Thesesettingsstayineffectforallfuture Dia sessions,untiltheyarechanged.

Thetwosquaresontheleftallowyoutosetthedefaultforegroundandbackgroundcolorsforallnewobjectsbeingaddedtothediagram.Ifyoudouble-clickontheuppersquare（i.e.,theblackoneinthescreenshotabove）,youcansetthedefaultforegroundcolorforallnewobjects.Double-clickingonthelowersquare（whiteinthescreenshot）allowsyoutoselectthedefaultbackgroundcolor

-RestoreDefaultColorsButton

-ReverseColorsButton

-DefaultLineWidth

-ArrowandLinkStyle

AtthebottomoftheToolboxarethreebuttons.Theleftbuttonallowsyoutoselectthedefaultarrowshapeforthebeginningofaline.Inthescreenshotthisisdefaultingto"noarrow".Therightbuttonallowsyoutoselectthedefaultarrowshapefortheendofaline.Sinceonlylineshavearrows,thesebuttonsonlyaffectlineobjectsandhavenoeffectonothershapes.Themiddlebuttonallowsyoutoselectthedefaultlinestyle（solid,dashed,etc.）.

3.WorkingWithDia

3.1AddingObjects

Addingobjectstothe Dia canvasisdonebyclickingonthedesiredobject'siconbuttoninthe Toolbox andthenclickingonthecanvasatthedesiredinsertionpoint.Theselectedobjectwillbeinsertedatthatpoint.

3.2MovingObjects

Whenanobjectisinsertedintothecanvas,thedesiredobjectwillappearwithsmallgreenboxes（knownashandles）aroundtheborder.

Figure 4.12. ObjectHandles

Tomoveanobject,clickanywhereinsidetheobject（orsomewhereonalineotherthanahandle）anddrag

themousetothedesiredlocationonthecanvas.Forlineobjects,youneedtoclickontheline.

3.3 ResizingObjects

Handlesareusedtochangethesizeoftheobject.Toexpandanobject,justclickahandleanddragitawayfromthecenteroftheobject.Toshrinkanobject,dragahandletowarditscenter.Theobject'ssizewillchangeasyoudragthemouse.Ifanobjecthasafixedaspectratio,changingonedimensionautomaticallychangestheother.Ifanobjecthasafreeaspectratio,youcanchangeonedimension（e.g.,height）withoutaffectingtheother（e.g.,width）.Someobjectshaveapropertysettingthatdetermineswhethertheaspectratioisfixedorfree.

3.4 DeletingObjects

Todeleteanobject,clickontheobjecttoselectit.Thehandleswilldisplay,whichindicatesthattheobjectisselected.ThenpresstheDeletekeyorselect Edit->Delete fromthemenu.

3.5ConnectingObjectsWithLines

Inmanydiagrams,shapesareconnectedtoeachotherusingoneofthebasiclineobjects.Whenashapeisnotselected,anumberofconnectionpointsaredisplayedonitsbordersassmall"x"figures.Thereisalsoaconnectionpointinthemiddleofeachshape.Linesalsohaveconnectionpointswhereotherlinescanconnect.

Lineshavehandlesoneachendthatareusedtoconnectthemtootherobjects.Thesehandlesaregreenifthelineisnotconnectedandredifitisconnected.Linesalsohaveorang