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2020/1/30–UTDallasPOEC6382AppliedGISSoftware1IntroductiontoArcPlotandAMLpdf转word–UTDallasPOEC6382AppliedGISSoftware25StepstoCreateaMapinArcPlot•Indicatethedisplaymethodforthemap--onthecomputerscreenoronagraphicsplotter.•Specifyparametersaboutthesizeandlayoutofyourmaptotranslatecoveragefeaturesfromthecomputertothedisplaysurface.Theseincludethefinalsizeoftheprintedmap,thepositionofthegeographicfeaturesonthemap,andthescaleofthemap.•SpecifytheportionoftheEarth’ssurfacetoincludeinyourmap.•Drawthegeographicfeaturesyouwantonyourmap,andspecifywhichsymbolstousefordrawingandlabelingthem.•Addadditionalcartographicelementstomakeyourmapeasiertoreadandunderstand.Theseincludetitles,legends,scalebar,northarrow,andgraphics.2020/1/30–UTDallasPOEC6382AppliedGISSoftware3EstablishingtheDisplayEnvironmentCommandsinArc/INFOthatusemenusanddisplaygraphicsonthescreen(suchasinArcPlotorArcEdit)requireyoutoestablishthedisplayenvironment.DISPLAY:ThecommandDISPLAYcontrolswhethergraphicsaresenttoyourworkstation’sdisplay(9999)ortoagraphicsfile(1040).&TERMINAL:thedirective&TERMINALisrequiredtoinvokeanyAMLmenusduringyoursession.YoucansettheseparametersinteractivelyatthebeginningofanArcPlotsession,orstoretheminastationfile.Stationfilesaretextfileswith“stat_”prefix,forexample,stat_9999InArc/INFOspecifyyourdevicesanddisplayparameters:1.Interactivelydisplay99993Displayoptions&term999912342.Withastationfile&station99992020/1/30–UTDallasPOEC6382AppliedGISSoftware4OptionalDirective&fullscreen-controlsscreenoutputoftextbycertaincommands.Usage:&FULLSCREEN&ON|&OFF|&NOPAGING|&POPUP&ON-enables&FULLSCREENmode.Thisisthedefault.&OFF-disables&FULLSCREEN&NOPAGINGor&POPUPmode.&NOPAGING-enables&FULLSCREENmode;however,textscrollsbythroughthedialogareaorpopupwindowwithoutpaging.&POPUP-displaysdialoginascrollablewindow.2020/1/30–UTDallasPOEC6382AppliedGISSoftware5GettingHelpARCPLOTcontainsmorecommandsthananyotherARC/INFOprogram.•GetacompletelistingofcommandswithCOMMANDS:–Arcplot:commands•Getalistingofcommandsusingapartialname:–Arcplot:commandstext(willreturnallcommandsstartingwithtext)•Getalistingofcommandsusingawildcard:–Arcplot:commands*spot(willreturnallcommandswith“spot”atend)•Getcommandusage:–Arcplot:usagearclines•StartArcDocforonlinedocumentation:–Arcplot:help2020/1/30–UTDallasPOEC6382AppliedGISSoftware6LayoutGraphicsPage=pagesizemaplimitsymaxyminxminxmaxwidthheight2020/1/30–UTDallasPOEC6382AppliedGISSoftware7PageUnitsversusMapUnits•PAGEUNITSaretheunitsofmeasurementforthegraphicspage,usuallygivenasinches(default)orcentimeters.•MAPUNITSarebasedontherealworldcoordinatesystem(projection)ofthecoverage(s)beingdisplayed.Theyarenearlyalwaysspecifiedinmetersorfeet.•Somegraphicscommands(forexample,BOX,CIRCLE,andLINE)candrawfeaturesbasedoneitherthecurrentlysetpageunitsormapunits.ThecommandtoswitchbetweentheseunitsinArcplotisUNITS.–Arcplot:unitspage–Arcplot:unitsmap2020/1/30–UTDallasPOEC6382AppliedGISSoftware8LayoutCommands:GraphicsPageThegraphicspageisthatpartofyourdevicedisplaycanvaswheregraphicscanbedrawn.Bydefault,thisistheentiredisplayarea.•PAGEUNITS:Specifieswhatcoordinateunitswillbeusedtospecifylocationpointsonthedevicedisplaypage.–Arcplot:pageunitsinches|cm|pageunits_per_inch–Bydefault,thePAGEUNITSisINCHES.ThismeansthattheMAPLIMITSandPAGESIZEcommandsaregivenininches,asarethecoordinatesforgraphicelements(forexample,BOX,LINE,PATCH)andcartographicsymbols(LINESIZE,TEXTSIZE).•PAGESIZE:ThegraphicspageareacanbespecifiedwiththePAGESIZEcommand.AllARCPLOTgraphicswillbeclippedtothispagedimension.–Arcplot:pagesizedevice|widthheight–Thepagesizedefaultisthedevicedisplaypage.–PAGESIZEsetsthewidthandheightofthegraphicspageinthecurrentPAGEUNITS.–Inthisway,youcandesignalargemaponasmallscreen(andofcourse,whenyououtputthefinalmap,thehardcopyisatthecorrectlargerformat).•PAGEEXTENT:Portionofthegraphicspagetobedisplayed.–Bydefault,PAGEEXTENTissettothecurrentgraphicspagesize.2020/1/30–UTDallasPOEC6382AppliedGISSoftware9LayoutCommands:Map•MAPUNITS:tellsArcPlotwhatcoordinateunitsthecoveragesyouwillbedrawingarestoredin.Defaultisinches.–Arcplot:mapunitsmeters•MAPLIMITS:specifiestheareaonyourgraphicspagewheredataisdrawn.–Bydefault,theentirePAGESIZEisused.–Giveninpageunits:Arcplot:maplimitsxminyminxmaxymax–Ifyoudon’tspecifyascaleforyourmap(MAPSCALE),thedatawilldrawtofitneatlyinsideyourspecifiedMAPLIMITSarea.•MAPEXTENT:specifiesthegeographicareainreal-worldcoordinatesthatwillberepresentedonyourmap.–Themapextentmustbespecified.ThereisnodefaultMAPEXTENT.–UseasinglecoverageArcplot:mapetexas–UsemultiplecoveragesArcplot:mapetxokar–UsecoveragefeaturesArcplot:mapepolysstates–UsemapcoordinatesArcplot:mapexminyminxmaxymax–UseinteractivecoordinatesArcplot:mape*2020/1/30–UTDallasPOEC6382AppliedGISSoftware10LayoutCommands:Map,pg2•MAPSCALE:usedtospecifythedenominatorofthescaletodrawthemap.YoushouldusetheMAPUNITScommandbeforeusingMAPSCALEifthecoordinateunitsaredifferentfromthedefaultinches.IfyoudonotsetaMAPSCALE,ARCPLOTwilldrawthemapaslargeaspossib