CorrectgAnswers
Whengisgitgappropriategtogmanagegyourgrastergdatasetsgusinggagmosaicgdataset?g-
gAnswergYougwantgtogusegsmallgtoglargegcollectionsgofgyourgrastergdatagforgmanaging,gvi
sualizing,gperforminggmanyggeoprocessingganalyses,gandgquerying.
Listgthegadvantagesgofgorganizinggrastergdatagingagmosaicgdataset.g-gAnswerg-
Store,gmanage,gview,gquery,gandgsharegsmallgtogvastgcollectionsgofglidargdata
-Performgraster-levelgoperationsgonglidargdata
-Completegon-the-flygprocessing
-Displaygdatagfastergatganygscale
WhengyougaddgagmosaicgdatasetgtogArcGISgPro,gitgisgaddedgasgagmosaicglayergthatgappe
arsgingthegContentsgpanegasgagspecialggroupglayergwithgagminimumgofgthreeglayers.gWhat
garegtheseglayersgcalledgandgwhatgdoesgeachgdisplay?g-
gAnswergBoundary,gFootprint,gandgImage.
-ThegBoundaryglayergdisplaysgthegboundarygofgthegmosaicgdataset
-ThegFootprintglayergdisplaysgthegfootprintsgforgeachgrastergwithingthegmosaicgdataset
-ThegImageglayergcontrolsgthegrenderinggofgthegmosaickedgimage.
Whatgaregrulesgforgorderinggoverlappinggrastersgwhengviewinggthegmosaickedgimagegcall
ed?g-gAnswergMosaicgmethods
T/F:gIfgyougselectedgthegoptiongtogbuildgoverviewsgongagmosaicgdataset,gthengthegstatisti
csgwillgalsogbeggenerated.g-gAnswergTrue
T/F:gAnygmodificationsgyougmakegingthegImageglayergwillgnotgaffectgthegpropertiesgofgtheg
mosaicgdataset.g-gAnswergTrue
T/F:gYoughaveggatheredg59gcounty-level,g1-
metergIKONOSgimages.gYougwouldglikegtogcreategagmosaicgdatasetgusinggthesegimages.gH
owever,gyougwantgtogexcludegareasgofgcloudgcover.gItgisgappropriategtoggenerategoverview
sgingthisgscenariogduringgthegprocessgofgaddinggrastersgtogthegmosaicgdataset.g-
gAnswergFalse
Youghavegbuiltgagmosaicgdatasetgusinggagsetgofgrastergdata.gYougwantgtogselectgspecificg
tilesgwithingthegmosaicgdatasetgandgdownloadgthemgtogyourglocalgcomputer.gHowgcangyo
ugaccomplishgthisgtask?g-
gAnswergAddgthegmosaicgdatasetgtogArcGISgPro,gselectgthegspecific
,tiles,glockgtogselectedgrasters,gandgdownloadgthegselectedgrasters.
Yougmodifygthegextentgofgthegfootprintgofgagmosaicgdataset.gWhichgofgthegfollowinggstate
mentsgisgtrue?
Pixelsgaregmodified.
Theregisgnoglossgofgimagegdata.gY
ougcannotgcropgthegpolygons.
Yougaregeditinggthegsourcegrastergdataset.g-g AnswergTheregisgnoglossgofgimagegdata.
T/F:gYoughavegcreatedgagmosaicgdatasetgusinggagsetgofgLASgfiles,gandgyougmodifygthegIm
ageglayergingArcGISgProgtogbettergvisualizegthegmosaickedgimage.gBygdoinggso,gyougareg
changinggthegsourcegdata.g-gAnswergFalse
Youghavegreceivedgagmosaicgdatasetgwithgseveralglayers.gHowgdogyougdisplaygagspecificgl
ayergofginterestgandgextractginformationgaboutgtheglayer?g-gAnswergQuerygtheglayer.
YoughavegacquiredgGeoEye-
1gimagerygwithgandgwithoutgcloudgcover.gYougwantgtogviewgitgwithgnogcloudgcovergatgthegt
op.gWhichgmosaicgmethodgwillgyouguse?g-gAnswergBygAttribute
Whatgisgrequiredgtogcreategagmosaicgdataset?g-
gAnswergYougshouldghavegwritegaccessgtogtheggeodatabasegandgangArcGISgDesktopgSta
ndardgandgArcGISgDesktopgAdvancedglicense.
Yougreceivegagmosaicgdatasetgwithgseveralglayers.gHowgdogyougdisplaygagspecificglayergo
fginterestgandgextractginformationgaboutgthatglayer?g-gAnswergQuerygthegmosaic
Whatgisgthegfirstgstepgingmanaginggyourgrastergdatagusinggagmosaicgdataset?g-
gAnswergCreategaggeodatabasegifgyougdognotghavegone.
Whichgmosaicgmethodgdogyougusegtogordergrastersgbasedgongaguser-
definedglocationgandgnadirglocation?g-gAnswergClosestgtogViewpoint
T/FgWhengyougaddgrastergdatagtogagmosaicgdataset,gthegrastergdatagisgnotgstoredgwithingt
hegmosaicgdataset.g-gAnswergTrue
Youghavegobtainedgthreeglargegrastergdatasetsgwithgthreegdifferentgresolutions.gWhatgisgth
egbestgmethodgtogmanagegthesegrastergdatasets?g-
gAnswergCreategagsinglegmosaicgdatasetgandgaddgthegthreegrastergdatasetsgtogthegmosaicg
dataset.
Mosaicgmethodgthat...
,-Sortsgrastersgwithgtheirgcentergclosestgtogthegviewgcentergplacedgongtop
-Seesglittlegdistortiongingthegimages,gyougwantgtogviewgthegcentersgofgthegimagesg-
gAnswergClosestgthegCenter
Mosaicgmethodgthat...
-Usesgthegpointgongthegearthsgsurfacegdirectlygbelowgthegsatellitegongtop
-gShowsgbuildingsgthatgappeargtogstandgstraightg-g AnswergClosestgtogNadir
Mosaicgmethodgthat...
-Usedgwhengviewergneedsgtogseegallgsidesgofgagbuildinggaroundgangobject
-
Showsgthegsidesgofgbuildingsgsogthatgyougcangidentifygfeaturesgsuchgasgentrancesgandgwi
ndowsg-gAnswergClosestgtogViewpoint
MosaicgMethodgthat...
-gUsedgwhengmethodgneedsgtogbegconstantgacrossgthegsurfaceg-
gAnswergClosestgtogNorthwest
Mosaicgmethodgthat...
-Ordersgbasedgongmetadatagattributegandgdifferencegingbasegvalueg-g AnswergBygAttribute
-
Reducedgresolutionglayergthatgenhancesgperformancegbygmakinggcopiesgofgthegoriginalg
datagatgagdecreasinggresolution
-Writtengasg.ovrgfilesgandgstoredgingagsinglegfilegnextgtogthegsourcegrastergfiles
-
Speedgupgthegdisplaygofgrastergdatagbygretrievinggonlygthegdatagatgagspecifiedgresolutiong
thatgisgrequiredgforgthegdisplayg-gAnswergPyramids
-Reducedgresolutiongrastergdatasetgcreatedgtogincreasegdisplaygspeedgandgreducegusage
-Lower-resolutiongcopygofgthegdatagappearsgquicklygwhilegviewinggentiregmosaicgdatasets
-TypicallygbegingwheregPyramidsgstopg-g AnswergOverviews
, Workflowgforgcreatinggandgaddinggrastersgtogagmosaicgdatasetg-
gAnswerg1.gCreategaggeodatabase
2. Inggeodatabase,gcreategemptygmosaicgdatasetgandgitsgschema
3. Addgrastergdatasetsgtogthegmosaicgdataset
4. Modifygthegmosaicgdatasetg(makegupdatesgtogthegboundarygandgfootprints,gaddgmor
egrastergdata,gandgsogon)
5. Definegandgbuildgoverviewsgforgthegmosaicgdataset
WhatgdoesgCalculatinggStatisticsgdogwhengworkinggwithgrastergdatasets?g-gAnswerg-
Helpgtogenhancegthegrenderinggofgyourgrastergdata
-Increasegagmap'sgdrawinggperformancegforgyourgrastergdatagsource
-Performgcertaingothergtasks,gsuchgasgapplyinggagcontrastgstretchgorgimagegclassification.
Wheregaregoverviewsgstored?g-
gAnswergOverviewsgareggeneratedgandgstored,gbygdefault,gingagfoldergnextgtogwheregthegm
osaicgdatasetgresides.
Whygaregoverviewsgnotgautomaticallygbuilt?g-
gAnswergTheygtakegadditionalgspacegandgtime,gandgyougmaygwantgtogbuildgthemgatgyourgc
onvenience.
Howgwouldgyouggetgcontextualgtabsgtogdisplaygongthegribbon?g-
gAnswergBygselectinggagfeaturegingthegContentsgpane
Whatgisgthegwindowgcalledgforgworkinggwithgmaps,gscenes,gtables,glayouts,gcharts,gandgr
eports?g-gAnswergAgview
IngwhichgtypegofgdockablegwindowgdogthegSymbologygandgGeoprocessinggfunctionalitie
sgoccur?g-gAnswergAgpane
ProgProjectgStructureg-gAnswerg-agmaingprojectgfilegwithgang APRXgfilegnamegextension