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acoordinatesystemwithboundsand/orwithanaffinetransformation.Thisisdescribedindetailin
AccountingforAffineTransformationsandExplicitBoundsinProjectionTypes.
Descriptionof anAffineTransformation
Thereareseveralbasictypesoftransformationthatcanbeappliedtothebasemapusinganaffine
transformation.Theseincludescaling,translation,rotation,shearing,andreflection.
•Formoreinformation,seeUnderstandingAffineTransformationsintheHelpSystem.
Thescalefactorofatransformationindicatesthedistancebetweenthefixedpointsofonemap
versusthefixedpointsofthesecondmap.Iftheonlydifferencebetweentwomapsisthescale,the
affinetransformationofthederivedmapisonlythesamemapzoomedinoroutaroundafixedpoint.
Theorientationsofthelinesconnectingthepoints,andtheanglesbetweentheselines,remainthe
same.Thescalinginthecaseofthefigurebelowisaroundthe0,0point.
Thedifferencebetweentheseimagesisthescale.Tocreateanaffinetransformationthatmapsthe
baseimage(A)tothederivedimage(B),changeonlythescale.
Thetranslationfactorofatransformationiswheneverypointonanimagefollowsaparallelpath
andnorotationtakesplace.
Thedifferencebetweenthesetwoimagesisthetranslation.
Therotationfactorofatransformationindicatesthattheimageturnsonaparticularpoint.Thenext
figureshowsa25-degreerotationofthemaparoundthe0,0point.
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Thedifferencebetweenthesetwoimagesisnotthescale,becausethesizeofeachimageisthe
same.Thedifferenceistherotationofthederivedimage(B).
Theshearingfactorofatransformationindicatesthatoneofthecoordinatesofoneimageshould
changeproportionallytotheother.Youcanapplyasheartransformationeitheronthex-axisas
showninthenextfigureoronthey-axis.Asyoucanseetheverticalscaleoftheimagehasnot
changed,andthecornerofthefigureat0,0hasnotmoved-butpointshigheruponthefigureare
shiftedprogressivelyfurthertotheright.
Thedifferenceistheshearingofthederivedimage(B).
Thereflectionfactorofatransformationindicatesthatthederivedimageisthemirrorimageofthe
baseimage,thatis,allthepointsinthebaseimageshouldbereflectedacrosssomestraightline,
suchasthex-axisory-axis.Inthefigurebelow,thederivedimage(B)isthereflectionofthebase
image(A).
Thedifferencebetweenthesetwoimagesisthatthederivedimage(B)isareflectionofthebase
image(A)alongthex-axis.
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Using Earth and Non-Earth Maps
Earthmapsandnon-earthmapsgenerallyrequiredifferenttreatment.Thefollowingsectionon
projectionsapplyonlytoearthmaps.Anearthmapcontainsobjectsthathaveaparticularlocation
ontheearth'ssurface.AllmapsthatMapInfoProsellsareearthmaps.Coordinatestypicallyrepresent
anobject'slocationinlongitudeandlatitude,althoughothercoordinatesystems(usingvarious
projections)maybeusedinstead.
Sinusoidal(Equal-Area)
Useearthmapsto:
•OverlayyourmapontoanymapsthatMapInfoProsupplies.
•Useorchangeprojections.
•Specifyobjectsonthemapintermsoflongitudeandlatitude.
Anon-earthmapcontainsobjectsthathavenospecificlocationontheearth'ssurface.Floorplans
aretypicalexamplesofnon-earthmaps.Anon-earthmaphasacoordinatesystem,butsinceits
mappointsarenotreferencedtolocationsonearth,thecoordinatesystemdoesnotcontaina
projection.Eventhoughthefloorplandescribesabuildingthatmaybelocatedsomewhereonthe
Earth,thecoordinatesofobjectsinthefloorplanaregenerallynotreferencedtopositionsonthe
Earth.Rather,theobject'scoordinatesarereferencedtothefloorplanitself,generallyrepresenting
distancefromthelowerleftcornerofthefloorplan.Thenextfiguredepictsafloorplanandisan
exampleofanon-earthmap.
SpecifyingCoordinatesforaNon-EarthMap
SavingaMaptoaNon-EarthCoordinateSystem
TosaveatableintoaNon-EarthCoordinatesystem:
1. Ensurethatyournon-earthmapisopenandthatitistheactivewindow.
2. ChooseFile>SaveCopyAs.
3. IntheSaveCopyofTableAsdialogbox,clicktheProjectionbutton.
4. IntheChooseProjectiondialogbox,chooseNon-EarthfromtheCategorydrop-downlist.
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5. ChooseaunitfromtheCategoryMembersdrop-downlisttospecifytheboundsandunitsfor
yournon-earthcoordinatesystem.
6. ClickOK.TheNon-EarthCoordinateBoundsdialogboxdisplays.
TheNon-EarthCoordinateBoundsdialogboxallowsyoutospecifytheboundsandunitsforyour
non-earthcoordinatesystem.Youcanusepositiveornegativenumberstospecifytheminimum
andmaximumXandYvalues.
ChangingtheMap'sCoordinateSystemtoNon-Earth
ToonlychangetheMap'sCoordinateSystem:
1. Ensurethatyourmapisopenandthatitistheactivewindow.
2. FromtheMapmenu,selectOptions.
3. IntheMapOptionsdialogbox,selecttheProjectionbutton.
4. IntheChooseProjectiondialogbox,chooseNon-EarthfromtheCategorydrop-downlist.
5. ChooseaNon-EarthunitfromtheCategoryMembersdrop-downlist.
6. ClickOK.
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16 - Working with Data
from a Web Service
Awebserviceisasoftwaresystemthatisaccessibleusinganintranetor
Internetconnection.MapInfoProsupportstheWebMapService(WFS)
andWebFeatureService(WFS),whichallowyoutoretrievedatathat
othersaresharinginternallyorworld-wide.Thepowerofwebservicesis
thatyoucanusethemtocreatemorepowerfulmapsorinthecaseof
geocodingservicesgetmoreaccurateandpreciseresultsusingthesame
data.
YoucanalsoworkwithGeocodingandDrivingRegionwebservices.A
Geocodingwebserviceletsyougeocodewithgreateraccuracy,because
themapsonaservicearemoreprecise.ADrivingRegionwebservicelets
youcreatetime-anddistance-basedbuffersaroundasitetodetermine
proximitytoalocation.Youmightusethisservicetofindthecustomers
closesttoastore,ortodeterminewhichinsuredcustomersareclosestto
aweatherpattern.
Amappingtileserverprovidescartographicmapsofgeo-referenceddata,
intheformofrasterimages(tiles).InMapInfoPro,youcanaddmaptiles
asabaselayertoyourmaptoprovideavisualreferenceforyourdata.
Thisgivesyouareal-worldreferenceforviewingyourdata,suchasfor
viewingstorelocationsormaintenanceroutes.
In this section
IntroductiontoWebServices
486
EnhancingMapDatausingaWebMapService(WMS)
488
EnhancingMapDatausingaWebFeatureService(WFS)
492
GeocodingusingaGeocodingServer
495
CreatingRoutingDistanceandTimeBuffers
500
EnhancingMapDatausingaMappingTileServer
503
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Introduction to Web Services
MapInfoProwebservicescanadddetailandprecisiontothemapsyouarecreatingandanalyzing.
Currently,youcanusethefollowingwebservicesfromwithinMapInfoPro:
•WebMapService(WMS)
•WebFeatureService(WFS)
•GeocodingService
•RoutingorDrivingRegionService
•MappingTileService
AccessingWebServicesinMapInfoPro
Tomakeiteasiertoaccesswebservices,thereisaWebServicestoolbar.Thesetoolbarbuttons
displayfrequentlyusedwebservicesdialogboxes.
Todisplaythetoolbar:
1. FromtheOptionsmenu,selectToolbars.
2. ChecktheWebServicescheckboxandclickClose.
WebServicesToolbar
CreateDrivingRegions
OpenWMSTable
WebServicesPreferences
OpenWFSTable
SearchCSWCatalogs
FindAddress
GeocodeUsingServer
Formoreinformationaboutthesebuttons,seetheAccessingWebServicesinMapInfoProtopic
intheHelpSystem.
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WebServiceAuthentication
Awebservice,suchasaWFS,WMS,geocodingserver,routingserver,ortileserver,mayrequire
authenticationintheformofausernameandpassword.
Server-SideAuthentication
YoucanaccessWFS,WMS,andtileserversthatrequirebasicauthenticationusingthebuilt-in
standardmechanismforinternetservers.Toconnecttoawebservicethatrequiresauthentication,
completetheConnectdialogboxthatdisplays.
EntertheappropriateusernameandpasswordandselecttheRemembermypasswordcheck
boxtohavethesite"remember"yourpasswordforyou.ClickOKtoenterthesite.Ifyoudonot
haveavalidusernameandpassword,youcannotconnecttothesite.
AccessingSecureWebSites
SSLisaninternationalstandardsecurityprotocolforexchangingsensitiveinformationbetweena
websiteandyourcomputer.YouknowSSL-enabledsitesbythehttps:address.Whenyouconnect
toanSSL-enabledserver,yourcomputerandtheserverexchangedigitalcertificates,whichminimize
thethreatoftheftofsensitivedata.IfyoutrytoconnecttoaserverandyouhaveavalidSSL
certificate,youshouldbeabletoconnecttothewebsite.
ProxyServerAuthentication
YourlocalLANmayuseaproxyservertoconnecttotheinternet.Webclientapplicationssuchas
internetbrowsersprovideamechanismforspecifyingaproxyserver,andMapInfoProdoesaswell.
Bydefault,MapInfoProusesyoursystemsettings-thesamesettingsusedbyInternetExplorer-for
aproxyserver.ThosesettingscanbeaccessedviatheConnectionstabunderInternetOptions
intheControlPanel,orviathesamedialoginvokedinInternetExplorerviatheTools>Internet
Optionsmenuoption.Askyousystemadministratorforthecorrectsettings.
YoucanoverridethesesettingsinMapInfoProviatheirWebServicespreferences.SelectOptions>
PreferencestodisplaythePreferencesdialogboxandthenclickWebServices.Thefirsttabin
theWebServicesPreferencesdialogboxdisplaysProxyServersettings.
Thereareseveraloptionsforaproxyserver.
•UseSystemSettingsisthedefaultoptionwhichusesthesystemsettingsforaproxyserver,
suchasthesamesettingsasInternetExplorer.
•UseDirectConnectionbypassesanysystemproxyserversettingsandconnectsdirectlytothe
Internet.ThisoptionwillonlyworkifyourLANallowsdirectconnections.
•UseProxyServeralsobypassesthesystemsettingsandallowsyoutospecifyaproxyserverto
useforMapInfoPro.Askyoursystemadministratorforthesettingstouse.
IfyoudouseaproxyservertoconnecttotheInternet,theproxyservermayalsorequire
authenticationintheformofausernameandpassword.Yoursystemadministratorshouldtellyou
whattheseare.Ifausernameandpasswordarerequired,youwillbepromptedforthemviaa
dialogwhenMapInfoProattemptstoconnecttotheInternet,suchaswhendrawingatileserver
layer.
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Entertheappropriateusernameandpassword.YoumayalsochoosetheRemembermypassword
checkboxsothesystemwillrememberthesevaluesbetweensessionsofMapInfoPro.Withina
sessionyoushouldonlyneedtospecifytheusernameandpasswordonce.
YoucansetautomaticauthenticationforaproxyserverwhenaccessingBingMap,MoveMap,and
theWebFeatureService(WFS).Fordetails,seeSingleSign-OnCredentialsforProxyServers
AccessingMapServices.
SingleSign-OnCredentialsforProxyServersAccessingMapServices
YoucansetautomaticauthenticationforaproxyserverwhenaccessingBingMap,MoveMap,and
theWebFeatureService(WFS).
MapInfoProsupportssinglesign-onauthenticationwithproxyserverswhileaccessingtilemap
services,suchasBingMap.MapInfoProsignsontotheproxyserverforyoubyautomatically
passingyourWindowsAuthenticationcredentials(yourWindowsusernameandpassword),sothat
youdonothavetotypeyourproxyusernameandpassword.
Supportforsinglesign-onauthenticationforproxyserversisinadditiontoourexistingsupportfor
basicauthenticationforproxyservers.Ifyouhaveyourproxyserversetupwithbasicauthentication,
thenyoustillneedtoenterausernameandpassword.Forautomaticauthentication,youmusthave
NTLM,Kerberos,orNegotiateauthenticationsetupontheproxyserver,andyourproxyaccess
credentialsmustbethesameasyourWindowsAuthenticationcredentials.
ThissinglesignonexperiencedoesnotapplytoTileServerauthenticationwhentheTileServer
youareusingrequiresyoutosignonbeforeaccessingmaptiles.
MicrosoftISAandTMGProxyserversuseNegotiateauthenticationwhenauthentication
modeissettoIntegrated.
Note:
Enhancing Map Data using a Web Map Service (WMS)
WebServicescanprovidemoredataforyoutoworkwithinMapInfoPro.AWebMapService
(WMS)allowsyoutoaccessmapsanddatathroughyourlocalintranetortheInternet.Thisinnovation
isbasedonaspecificationfromtheOpenGISConsortium(OGC)thatallowsyoutouserastermap
imagesfromserversthatalsocomplywiththespecification.Youmustspecifythecoordinatesystem
withinyourdatarequesttoensurethattheimagesyouretrieve"syncup"orregisterwithyourother
mapdata.
HowDoesMapInfoProUseWMSServers?
Whenyoucreatea.tabfilefromWMSlayer(s),youareactuallycreatingapointertoanXMLfile
thatkeepstrackofthedatayouselected,(theserveraddress,theselectedlayer(s),thestyles,the
format,andtheprojectionsettings).Youneveractuallyretrievethedataandsaveitonyourcomputer.
EverytimeyouaddaWMStableasalayertoyourmaporyouchangetheviewofthemap,the
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systemgeneratesamaprequestandretrievesthelayerinformation.Todothis,the.tabfilepoints
toanXMLfilewhichretrievestheinformationfromtheWMSServeranddisplaysitonyourcomputer.
IfyouarenotconnectedtotheInternet,theserverisunavailable,ortheWMSlayer(s)youare
retrievingarenotavailable,youcannotusetheWMS.tabfile.
TheWMSsitesthatweincludeinthisdocumentationorinthestandardinstallationofMapInfo
Prohavebeenverifiedaspartofthetestingprocess.Wecannotguaranteethatthesesites
willremainactive,onlythattheywereactiveasofthiswriting.
Note:
WMSMapsDisplayinCurrentMapWindow'sCoordinateSystembyDefault
Manytimes,whenyouareretrievingaWMSmap,youareaddingittoenhancethedetailofaMap
windowthatyouarealreadyworkingon.WehavechangedthedefaultbehavioroftheProjection
drop-downbox.Now,thislistdefaultstotheprojectionthatmatchesthefront-mostmapwindow,if
thatprojectionisavailableinthelist.
ButWhatifaWMSDefinitionAlreadyExistsorIamnotWorkinginaMapWindow?
•IfyouareretrievingaWMSmapandtherewasapreviousWMSdefinition(oryouaremodifying
aWMSmap),MapInfoProusesthecoordinatesystemthatmatchesthecurrentprojection(not
necessarilytheMapwindow'scoordinatesystem).
•IftherewasnopreviousWMSdefinition,thecurrentMapwindow'scoordinatesystemisselected
ifitcanbefoundintheProjectionlist.
•IftheMapwindow'scoordinatesystemisnotintheProjectionlistoryouareretrievingaWMS
mapwhenyouarenotworkinginaMapwindow,MapInfoProtriestodefaulttoEPSG:4326.
•Finally,ifnoneoftheseprojectionsarefound,thefirstitemintheProjectionlistisselected.
SupportedImageFormatsforWMS
MapInfoProsupportsthefollowingimageformatsforWMS:
•PNG
•JPEG(JPG)
•TIFF(GeoTIFFANDTIFF)
•GIF.
NoteveryformatwillbeavailablefromeveryWebMapService.
Note:
TheOGCWMSspecificationsupportstransparentpixeldefinitionforimageformats.Thisallows
youtousetheimagesyouretrieveasoverlaysandnotsolelyasthebottomlayerofyourmap.
Tosetthebackgroundtotransparent,clicktheTransparentcheckboxintheOpenWMSTable
ortheWMSTablePropertiesdialogboxes.Youcanalsocontrolthetransparencyandtranslucency
oftheimageviaLayerControl(bydouble-clickingthelayerandcheckingtheStyleOverridecheck
boxontheLayerDisplaytabintheLayerPropertiesdialogbox).
TheHelpSystemcontainstheserelatedtopics:
•AddingaWMSServer
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•EditingtheWMSServersList
•RetrievingMapDatafromWebMapServices
•SettingtheProjectionforWMSLayers
•ProjectionIssueswithWMSMapData
•EditingWMSLayerSettings
•OpeningWMS.TABFiles
•InfoToolSUpportforWMSLayers
•ControllingWMSImageQualityWhenPrinting
•CorrectingtheDisplayofWebMapService(WMS)Images
UnderstandingWMSErrorMessages
DatareturnedtotheWMSclientdependsontheavailabilityandstatusoftheWMSserverandon
thecharacteristicsandstatusofthemapsontheWFSserver.Theseconditionsarebeyondthe
controlofPitneyBowesSoftwareInc..
ThefollowingtablelistsandexplainsWMS-relatederrormessages.Somemessagesconsistoftwo
parts,separatedbyacolon.TheinformationuptothecolonisgeneratedbytheMapInfoWMS
client.TherawdatafollowingthecoloncomesdirectlyfromtheWMSserver.Forclarificationon
thosemessages,pleasecontacttheserviceprovideroftheWFSserver.
Table2:WMS-RelatedErrorMessages
DescriptionandExplanationofMessage
ErrorMessage
ThemostlikelycauseisbadlyformedXMLfromtheserver.Therawdata
followingthecolonistransmittedbytheMSXML4.0parser.
XMLParsingError:
message from
XML parser
TherawdatafollowingthecolonistransmittedbytheWMSserver.Thismay
helpyouanalyzetheproblem.
TheWMSServerissuedthefollowing
exception:
message from
server
TheWMSservergeneratedanerror.Forclarification,contacttheserviceprovider
oftheWFSserver.
TherecouldbeaproblemwiththeURL,theservermaynotbeavailable,orit
mayhavetimedout.
Thefollowingerrorwasissuedwhile
attemptingtoaccesstheWMSserver:
message from server
MapInfoProissuedaservicerequest,butnothingwasreceivedfromtheserver.
TheWMSServerreturnednodatain
responsetotherequest.
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