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Embedding MapInfo Pro Maps
MapInfoProbringsitspowerofmapdisplay,creationandeditingrightintoyourfavoriteapplication
sothatyoumaybuildamapwhereyouneedit.ThischaptercoversthebasicsofOLEandthe
MapInfoProfeaturesthatyoumayuseinotherapplicationstocreatedynamicmaps.
MapInfoPro'sOLEembeddingcapabilityturnsyourapplicationssuchaswordprocessorsand
spreadsheetsinto"mini-MapInfo"programswhereyoucancreate,displayandeditamapfor
presentation,reportingorpublishing.OLEisaprocessknownasObjectLinkingandEmbedding
wherebyaserverapplication(suchasMapInfoPro)providesinformationthatisstoredinaclient
applicationthatcanacceptOLEinformation(suchasawordprocessor).MapInfoPro'sOLE
embeddingfunctionalityallowsyoutoembedaMapwindowinanyapplicationthatacceptsOLE
objectsandusesomeofMapInfoPro'sfeaturestocreate,displayandeditthemapdirectlyinthat
application.
WithMapInfoProOLEEmbeddingyoucanbuildthemapdirectlyinyourOLEcontainerapplication,
oryoucancreateitinMapInfoProanddragtheMapwindowintoyourapplicationforadditional
editingoroutput.BecausetheMapInfoMapObjectisaliveOLEobject,youareinfactrunning
MapInfoProinthebackground.WhentheMapwindowisactiveinthecontainer,themenuand
toolbarofyourapplicationchangetoreflecttheMapInfoProfeaturesthatbecomeavailable.This
subsetoffeaturesiscalledMapInfoMap.(SomeOLEcontainerswillcreateaseparatewindowfor
theobject.)Withtheclickofabuttonorbychoosingamenucommand,youhaveMapInfoPro
functionalityinyourapplicationwhereyouneedit.
•FormoreinformationaboutOLEfeaturesandrequirementinMapInfoPro,seetheMapInfoPro
HelpSystem.
WhatYouShouldKnowFirst
Beforeyougetstarted,itisgoodtoreviewthesystemrequirementsandtheregistrationstatement
toensurethatyouunderstandwheretolookforyourMapInfoMapObjects.
SystemRequirements
MapInfoMapisanOLEserverapplicationthatrunsunder32-bitMapInfoPro.Youmustinstall
MapInfoPro32-bittoengageMapInfoMap.Ontheclientside,onlycontainerapplicationsthat
supportOLEembeddedobjectscanrunMapInfoMap.
RegisteringOLEObjectswithContainers
OnceMapInfoProhasbeeninstalledonyoursystem,theMapInfoMapObjectwillberegistered
automaticallyandlistedasachoiceintheObjectdialogboxofanycontainerapplicationthataccepts
OLEobjects.
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MenusandCommandsAvailableWhileUsingtheMapInfoMap
MapInfoMapreplacesallcontainermenusexceptFileandWindowwithfiveMapInfoPromenus:
Edit,View,Table,MapandHelp.Undereachmenu,selectedMapInfoProfeatureshavebeen
included,asoutlinedinthissection.ThissectioncontainssummariesofMapInfoMap'smenu
commandsandtools.BesuretorefertootherchaptersinthisGuideandtherestoftheMapInfo
Prodocumentationsetformorecompletediscussions.
•FormoreaboutthespecificcommandsavailablewhenworkingwithMapwindows,seetheHelp
System.
LimitationsofOLE
AlthoughMapInfoMapenablesyoutobuildamapveryeasilyinyourcontainerapplication,notall
ofMapInfoPro'sfeaturesareavailableinthecontextofmapembedding.Amongthemareediting
mapobjectssuchasregionsorpolylines,queryingatableforfurtheranalysis,geocodingtoatable
intheMapwindow,ordisplayingtablesinBrowserwindows.
However,withMapInfoPro'sdraganddropcapabilitiesyoucanstillperformthesefunctionsin
MapInfoProandbringovertheMapwindowtoyourOLEcontainerapplicationforfinalviewing,
formattingandeditingenhancements.
WorkingwithEmbeddedMaps
NowthatyouhavehadanintroductiontoMapInfoMapObjectandwhatitcandoforyouasyou
workinanotherapplication,letusgetdowntothespecificsofembeddinganOLEobject.
Youneedtospecifywhatgetscopiedtotheclipboard.Bydefault,youcannotcopyamap
untilyousetthispreference.SeeSettingYourCopytoClipboardPreferencesintheHelp
System.
Note:
AlthoughcontainersvaryintheirhandlingofOLEobjects,therearesomebehaviorsthatarecommon
toall.TherearethreewaysthatcontainersacceptembeddedOLEobjectssuchasaMapwindow:
•OntheInsertmenu,clickObjecttochoosetheobjecttoembedfromalist.
•OntheEditmenu,clickPaste(orPasteSpecial)toembedanobjectthatwaspreviouslycopied
totheClipboard.
•DraganddropfromtheapplicationtothecontainerusingtheDragMapWindowtool.
Themethodyouchoosedependsonwhichapplicationyouareinatthemoment(serverorclient)
andhowmuchyouwanttodotocreatethefinalmap.
•Formoreinformationandrelatedtopics,seeCreatingaNewMapWindowinyourContainerand
BringingaMapWindowintoyourApplicationintheHelpSystem.
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SharingDocumentswithEmbeddedMaps
Onceyouhavecreatedamapinyourdocument,youmaywanttoshareitwithacolleague.Oryou
mightwanttouseitonanothersystem.Whenthedocumentisopenedonanothersystem,the
MapInfoMapObjectdisplaysasametafile,orpictureofthemap,intheinactivestate.Themapis
likeanyothergraphicimageatthispoint.Ifnomapeditingisnecessary,thedocumentcanbe
printed,reformatted,reorganized,andsavedwithnospecialhandlingrequiredforthemap.The
mapitselfcanevenberesizedorrepositioned.Youcannot,however,changethecontentofthe
mapsinceitisnotanactiveOLEobject.
Toactivatethemapforeditingonanothersystem,yourcolleaguemusthaveaccessto32-bit
MapInfoProandthedatausedtocreatethemap.Double-clickthemaptoactivatetheOLEobject.
MapInfoProwillpromptforthelocationofthedatafilesifitcannotfindtheoriginallocation.Ifthe
dataisnotavailable,canceloutoftheLocateDatadialogbox.Themetafileimageisreplacedwith
theMapInfoProworldmapintheactivestate.Toretrievetheoriginalmetafileimage,closethe
documentwithoutsavingandreopeningit.
SharingMapInfoProandmapdataonothersystemsislimitedtotheextentofyourlicense
agreement(s).
Note:
•Formoreinformation,seeMapInfoMapObjectsvs.DataMapObjectsintheHelpSystem.
UsingMapInfoTableswithDataMap
DataMapusesMapInfoProtables.AllofthesamplemapsprovidedwithDataMapareactually
MapInfoProtables.
IfyouhavecreatedyourownMapInfoProtables,youcanuseyourtablesinDataMap.However,
beforeyoucandisplayyourtableinDataMap,youmustsetupyourtableusingtheDataMapData
Installer.TolaunchtheDataInstaller,double-clickthefileDATAINST.EXE.(Tolocatethisfile,click
WindowsStart,andthenclickFind.)OnceyouhavelaunchedtheDataInstaller,completethe
dialogboxesthatappearonthescreen.
NotethatsomeMapInfoProtablescannotbeusedwithDataMap.Specifically:
•DataMapcannotdisplayrasterimageunderlaytables.
•DataMapcannotdisplayatablethatisactuallydefinedasarelationaljoinofothertables(such
asaPitneyBowesSoftwareInc.StreetProtable).TouseastreettablewithDataMap,useMapInfo
Pro'sSaveCopyAscommand,whichsavesastreettableina"flat"formthatDataMapcanuse.
•DataMapcannotdisplaypointobjectsthatuseMapInfoPro"Custom"symbolstyles.(Custom
symbolsareselectedbydisplayingMapInfoPro'sSymbolStyledialogbox,andthenselecting
"CustomSymbols"fromtheFontdrop-downlist.)IfyourMapInfoProtablecontainspointswith
customsymbolstyles,thosepointswillbeinvisibleinDataMap.
FormoreinformationaboutDataMap,seetheDataMapHelpSystem.Formoreinformationabout
theDataInstaller,seetheDataInstallerHelpSystem.
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Internet Connectivity and MapInfo Pro
MapInfoProcontainsoptionsthatallowyoutobringtheInternetintoyourmappingsessions,and
tobringyourmapstotheInternet.
UsingactiveobjectsandtheHotLinktool,youcanlaunchfilesandInternetURLsdirectlyfrom
objectsorlabelsonyourmap.Activeobjectsprovideyouwithapowerfuldisplaytoolthatallows
youtobringinformationfromtheWebandotherapplicationstogetherinyourmap.
Theseadditionalsourcesofinformationcangiveyouranalysisorpresentationgreaterimpact.For
example,youcanlinkalocationonyourmaptoaWebsitethatgivesmoreinformationaboutthe
locationortoanimagefilethatshowscertainaspectsofthelocationinmoredetail.
Inaddition,youcanusethemapsyoucreateinMapInfoProinyourWebpages.TheHTMLImage
MaptoolconvertsaMapInfoPromapintoanHTMLimagemap.VisitorstoyourWebpagewillbe
abletoclickanyregiontolinktootherHTMLpagesspecifictothatregion.
WhatAreActiveObjects?
ActiveobjectsaremapobjectsthatareassociatedwithfilesorURLs.Thefilecanbeabitmap,a
MapInfoProworkspaceortable,aMapBasicprogram,oranytypeofexecutablefilewhoseextension
isassociatedwithanapplicationinstalledonyoursystem.
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Theactiveobjectinthismap(redtriangle)islinkedtoawebcamwebsitethatdisplaysanerupting
volcano.
TheHelpSystemcontainstheseandotherrelatedtopics:
•AddingURLInformationtoyourTable
•CombiningaDistrict'sObjects
•CreatingActiveObjects
•CreatingMultipleHotLinksinaMap
•UsingtheHotLinkToolinaMapWindow
•SavingaNewDistrictandExitingtheRedistricter
HTMLLandingPages
TheLandingPagesoptionallowsyoutoclickanyregionintheHTMLimagemapandlinktoan
HTMLlandingpagespecifictothatregion.Youcanputwhatevercontentyouwantintothelanding
pages,includingcolumninformationfromyourtable.Theuserinterfaceenablesyoutoselectthe
columnsyouwanttouseandcustomizethetext.
•FormoreaboutselectingcolumnsforlandingpagesandTooltips,seetheHelpSystem.
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Redistricting-Grouping Map Objects into Districts
OnepopularuseofMapInfoProistogroupmapobjectswithacommonfieldintodistrictsorterritories.
MapInfoPro'sRedistrictingfeatureallowsyoutocreatenewdistricts,realignexistingdistricts,all
thewhiledoingcalculationsoftheattacheddataontheflyforinstantanalysisanddecision-making.
WhatisRedistrictingandHowCanIUseIt?
Redistrictingistheprocessofassigningmapobjectstogroups.Asyouassignmapobjectstogroups,
MapInfoProautomaticallycalculatestotalsforeachgroupofobjects,anddisplaysthetotalsina
specialBrowserwindowcalledtheDistrictsBrowser.Thisprocessissometimesknownas
load-balancing.
Whenyouperformredistricting,youcreateanumberofdistricts.Theexactnumberofdistricts
neededdependsonthenatureofyourwork.Youcanassignauniquenametoeachdistrict;thus,
ifyouwanttoworkwithfourdistricts,youmightcallthedistrictsNortheast,Southeast,Northwest,
andSouthwest.EachdistrictappearsasonerowintheDistrictsBrowser.
TheDistrictsBrowserisdifferentfromotherBrowserwindowsinseveralrespects:
•YouonlycanselectonerowatatimefromtheDistrictsBrowser.YoucannotShift-click
toselect
multiplerows.
•TheDistrictsBrowseralwayshasonerowselected;youcannotcanceltheselectionofthisrow
bychoosingUnselectAll.
•WhenyouselectarowfromtheDistrictsBrowser,thatrowbecomesthetargetdistrict.Thetarget
districtisthedistrictthatwillbeaffectedbysubsequentredistrictingoperations.
Onceyouhaveselectedatargetdistrict,youassignmapobjectstothatdistrictbyselectingthe
mapobjects.Youcanselectobjectsbypointingandclicking,orbyperformingqueriessuchasSQL
Select.
Whenyouselectmapobjects,MapInfoProtentativelyassignstheselectedobjectstothetarget
district.MapInfoProthenrecalculatesthetotalsforeachdistrict,anddisplaysthenewtotalsinthe
DistrictsBrowser.YoucanthenexaminethecontentsoftheDistrictsBrowsertodecidewhether
youwanttomakethedistrictassignmentspermanent.
Tocancelthetentativedistrictassignment,canceltheselectionofthemapobjects.
Tomakethetentativedistrictassignmentpermanent,chooseRedistrict>AssignSelectedObjects.
WhenyouchooseAssignSelectedObjects,MapInfoProstoresthetargetdistrict'snameinthe
rowsoftheselectedobjects.Thus,ifyouassignmapobjectstoadistrictcalledNorthwest,MapInfo
ProstoresNorthwestineachobject'srow.
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Eachdistricthasitsownsetoffill,line,andsymbolstyles.Whenyouassignamapobjecttoa
district,theobjectsubsequentlyappearsinthestyleofthedistrict.Thus,ifyouchooseasolidblue
fillfortheNortheastdistrict,objectsthatyouassigntoNortheastappearinsolidblue.
Forexample,ifyouhavealayerofstates,youmightwanttocombinethestateboundariestocreate
salesterritories.Eachstaterecordincludesafield,TOT_SALES,whichcontainsthetotalsalesfor
thepreviousyear.YouwouldultimatelyliketosumuptheTOT_SALESfieldforeachstateina
givensalesterritory.Redistrictingisgivesyouthetoolsforcreatingthesalesterritoryandcombining
thoseTOT_SALESfieldsfromeachstate'sdataintoonetable.
TheSTATEStableusedinthisexampleisfromtheMapInfoProTutorialdata,whichis
availablefromthePitneyBowesSoftwareInc.website,
http://go.pbinsight.com/webtutorials.
Note:
Butthatisonlyonepartoftheredistrictingprocess.TherealpowerliesintheDistrictsBrowser
whereyoucanseeon-the-flyupdatesofdistrictrecordcountsanddatatotalswhenyouclickamap
objectandassignittoanotherdistrict.Thisallowsyoutoperformvisual"whatif"analysistoachieve
districtrealignments,aprocesssometimesreferredtoasloadbalancing.
Whenyouaresatisfiedwiththedistribution,youcanmakethedistrictassignmentspermanent.
Later,astheneedarises,youcanchangetheassignmentsandtryoutnewdistributions.
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Redistrictingdoesnotcreatenewmapobjectsorpermanentlychangethestyleofthemapobjects.
Redistrictingissimplyadynamicgroupingtoolthatdisplaysmapobjectsthatsharethesamedistrict
informationasagroup.Whilethemapobjectsarenotpermanentlyaffected,youcanmakethe
districtassignmentspermanentbysavingthetable.
Youcanredistrictanymappabletablecontainingregion,line,orpointobjects.Theredistrictmap
willreflecttheappropriatefill,line,orsymbolstylefortheobjects.TheRedistricterlimitsthenumber
ofdistrictsinatableto594.
Youcanuseredistrictinginawidevarietyofapplicationssuchascreatingandmanagingsales
territories,schoolorvoterdistricts,emergencyservicecoverageareas,deliveryroutes,natural
resourcemanagementareas,etc.Useitwhereverthereisahighdegreeoffluctuatingdataandthe
needtotryoutdifferentrealignmentscenarios.
Youcanuseredistrictingwhetheryouneedtocreatedistrictsfromscratchorrealignexistingdistricts.
Beforewegetintotheprocess,however,therearetwokeyconceptstointroduce:theDistricts
BrowserandTargetDistrict.
UsingtheDistrictsBrowser
TheDistrictsBrowseristhekeytotheprocessofcreatingandchangingdistricts.Whilelookinglike
otherBrowsersinMapInfoPro,theDistrictsBrowserisactuallyadynamicwindowthatallowsyou
tomakechangestothegroupsandrecalculatestotalvaluesonthefly.Youcanimmediatelysee
theresultsofyourchanges.Youthenhavetheoptiontomakethechangespermanentorcontinue
totryoutnewdistrictrealignments.
TheBrowserwindowliststhedistrictsasspecifiedinyourtable,therecordcountforeachdistrict,
andaggregateexpressioncolumnsthatcontainthenettotalvaluesofyourdata.Youspecifythese
columnsintheNewRedistrictWindowdialogboxwhenyoubegintheredistrictingsession.
•Formoreinstructionsaboutcreatingandaddingredistrictingfeaturesandotherrelatedtopics,
seetheHelpSystem.
ForadditionaltopicsinRedistricting,seeSettinguptheTargetDistrictintheHelpSystem.
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UsingRedistricting
Whenyoucalculatethepercentageofpartialcolumns(suchaspopulationcolumnsthatciteincome,
gender,age,ethnicbackground,orreligiousaffiliation)youhavetwocalculationmethodsavailable.
Onemethodcalculatesthepercentagebycolumnsothatthesumofalloftheentriesineverycolumn
wouldbe100%.Anothermethodcalculatesthepercentagebyrowbasedonyourselectedrow
entry(orsumofentries)sothateachpercentageentryintherowiscalculatedbasedonthatrow
(orsumofentries).Forexample,inthefollowingtable:
C
B
A
1
1
1
2
2
2
TheColumnmethoddeterminesthepercentagesofentriesinColumnA:
Percentage (A1)=A1/(A1 1 + A2) x x 100%; Percentage (A2)=A2/(A1 1 + A2) x x 100%
TheRowmethoddeterminesthepercentageforentriesA1andB1basedonC1asatotalcolumn:
Percentage (A1) = A1/C1 x 100%; Percentage (B1) = B1/C1 x 100%
Selectingavalidbaseentry(orthesumoftheentries)iscrucialtoreturningmeaningful
results.Forexample,ifyouchooseavalueinapopulationcolumnandabasevaluefrom
anincomecolumn,yourresultswillnotbemeaningful.
Note:
•Formoreinformation,seeCreatingNewDistrictsandRedistrictingusingtheRowMethodinthe
HelpSystem.
OptionsinRedistricting
TocontroltheorderofdistrictsintheDistrictsBrowser,ontheRedistrictmenu,clickOptions.The
RedistricterOptionsdialogboxdisplays.Chooseyourpreferredsortorderfromamong:most
recentlyused,alphabetical,orunordered.YoucanalsochoosetoshowtheBrowsergridlinesand
savetheoptionsasyourdefault.
Asmentionedearlier,theMostRecentlyUsedoptioncangreatlyaidyouifyouhavemoredistricts
thantheDistrictsBrowsercandisplayinawindow.Wheneveryouselectamapobjectthatbelongs
toadistrictthatisnotcurrentlyvisibleintheBrowser,MapInfoProwillmovethatrecordnearthe
topoftheBrowserwindow.Youcanthenmoreeasilysetthenewtargetdistrictorviewthechanges
inthedatafieldsasyoucarryoutyourload-balancingscenario.
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Changingthedisplayofyourdistrictsissimple.Clickthefillpattern,linestyle,orsymbolinthe
DistrictsBrowserthatrepresentsthedistrict.TheRegionStyle,LineStyle,orSymbolStyledialog
boxdisplays,whereyoucanchangethetoolsusedtodisplaythedistrict.
Tosavethestylechanges,youmustsavetheredistrictingsessionasaworkspace.SaveTable
willonlysavethedistrictassignmentchanges.Thestylesbelongtoathematiclayer,nottothetable
itself.Thedistrictchangesareappliedtothetableand,thus,canbesavedtothetable.
RecordswithNoGraphicObjects
Redistrictinginvolvesgroupingmapobjectsintodistricts.Ifyouareredistrictingatablethatcontains
recordsthatdonothavegraphicobjectsassociatedwiththem,keepinmindthatMapInfoPro
includesthemaswellintheDistrictsBrowser.Youcannotassigntheserecordstonewdistricts.
Theywillaffectyourdatacalculationswhenyoumoveobjectsintonewdistricts.
Ifyouhavenumerousrecordswithoutgraphicobjectsinyourtable,itmaybebesttocreateand
saveasubsetofthetableandruntheRedistricteronthenewtable.
Creating Expressions
Formulatingexpressionsissomethinglikewritingsentences.Thereisavocabularyofwordsfrom
whichyoucandraw,andthesewordshavetobecombinedaccordingtosyntacticrules.Thesyntax
ofexpressionsismuchsimplerthanthesyntaxofEnglish,andthevocabularyisvastlysmaller.
However,mostofushavebeenusingEnglishforyearsandsoitseemseasyandnaturalwhereas
formulatingexpressionsis,atfirst,sometimesabitdifficult.
However,justasEnglishhassimplesentencesandcomplexsentences,sotherearesimple
expressionsandcomplexones.Evenifyoudonotgetthehangofformulatingcomplexexpressions,
youcanstillusealltheMapInfoProcommandsthatuseexpressions.Thatisbecauseformulating
simpleexpressionsisveryeasyand,atthesametime,allowsyoutoworkwithyourdatainpowerful
ways.
•MostoftheproceduralinformationforCreatingExpressionsisavailableintheHelpSystem.
WhereExpressionsCanBeUsed
UsetheExpressiondialogboxtoformulatemathematicalandalphanumericexpressionsinseveral
MapInfoProdialogboxes.SeeSpecifyinganExpressionintheHelpSystem.
Expressionsareusedinthefollowingcommands:Select,UpdateColumn,ThematicMapping,and
LayerControl(double-clickthelayerandselectfromtheLabelwithlistontheLabelDisplaytab).
Theexpressionservesadifferentpurposeindifferentcommands.
Forexample:
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