在ArcGIS中求任意兩點間最短路徑的長度

求任意兩點間最短路徑的長度在網(wǎng)絡分析中求指定兩點之間的最短路徑并不難，但要求一個點集合內任意兩點之間的最短路徑對新手來說就比較困難了，下面介紹一下如何解決這個問題。1、建立網(wǎng)絡數(shù)據(jù)集。2、將要求最短路徑的點建成一點shapefileso3、將網(wǎng)絡數(shù)據(jù)集和點加進arcmap，點networkanalyst工具條上的*打開網(wǎng)絡分析窗口。圖中紅點是要求最短路徑的點。4、新建ODcostmatrix并求要求最短路徑點的ODcostmatrix：在網(wǎng)絡分析窗口內origins和destinations上分別點右鍵，選loadlocations,將點加入點networkanalyst工具條上的1求出ODcostmatrix5、生成origin點和destination點文件首先將ODcostmatrix的line導出，并將total_leng字段為0的記錄刪掉。然后用下圖中工具分別生成生成origin點和destination點文件。+-----+-----Al_cT0olbOK3DArL：=ilyEtTools-^4AiLalyEisToolsCartographyTooleCunversiunToolsWjjCoverageToolsDataInteroperabi1ityTuoleIlataM：=LTL：=LgementToolsDataComparieonDatahaseDiscoriiLectedEditingDistrihutedGeodatabaseAIVerticesToPointeAddXYCoordinatesAdjust3HZCheckGeometryCopyFeatiji-esDeleteFeatin_eEEnvelupetoFolygonToLineToFointToFolygon生成origin點文件時pointtype選star，生成destination點文件時pointtype選end。FeatureVerticesToFeatureVerticesToPoints邕叵I區(qū)IInputFeatm-esOutputFeatm_eClassH:\trnp\origin_f>oint.shpFointType(uptiQnal〕TAET敏：1CancelEnvironments.3hd^Help>>生成的兩個點文件的屬性表是這樣的6、生成任意兩點間最短路徑新建路徑在網(wǎng)絡分析窗口內右鍵點stops，選選loadlocations，加入起點:點相應的property的field字段，使name后的field值為空,routename后的field值為〃name”,如上圖所示。重復上面步驟，加入終點：

加入起點、終點后網(wǎng)絡分析窗口的情形:

Rout—Stops(60)A-Location1-Location2(2)^■L>:>>2ation2QLocation32-Location.1―Location3(2)flLocation3^Location33-Location1—Location4(2)on5QLocation35日Location1一Location5(2)OLocation4QlLocation34-Location1—Location6(2)OLcication1?Lgmtinn31-Location2—Location1(2)QLocationT^^Location37-Location2—Location3(2)^n^Lcication6QLocation36日Location2—Location4(2)ALocation10QlLocation40最后點networkanalyst工具條上的求出任意兩點間的最短路徑，下圖是最短路徑的部分屬性表:1段AttributesL'J…’—*ofRoutesEBB1]ObjectIV罷池■企■Fl￡￡tStO?lDL&StStOl>lDStovCanjilTotal.Ltuttb1Poly!imMLocttiion1.-Localioit2232￡:|5￡G.-9379J22PolylineMLocation1~Location53$322&30.2132473F*171iXieKLo￡aitld￡i1-LdcallOik4353715.3335994PfllylinsKLocation1~Location5W22M2.2^8813SPolylineMLae&tl&ii1"Location61312Ii03.7ft25&4GP-glrlinflMLgcatioxi2-Lgcdicm137t5E€.93T9U7PolTliMMLocaitian2:-Location363621063.2T53&5aPolr8iztaKLocktion?-LqcblIioiii410和22149.5956B79PolylineMLocation2-Location5939219?4.0S2&610FalflineMLaca：tlafi2-LaeationB83821&3&.12136711PolylixisMlGcati?n3-Loc&ticin115452G30.21329*712PolylineKloeatlan3-Lacaiiast211412.1063.2T53S513Pcilyiin-eMIpqaitiap?-Locali-gji4124221岫孫酒14PolyimeHLocation3-Location5144422312.2350&315PolylineKLocatian3一Lacationg134S2174.2T3512IEPolylin?MLocation4-Location120502BT15.5935991?FolMllteNLoe&tlon4-Loe^lioik2134&22148.5SS68T1$PolrlMLgiitig4-LoEim316462085.睥網(wǎng)蛇14PolylineXLocatian4-Lac-a.tioii51?472H的.26924420FaljlimMLocLtian4-Lacs.1icihG1949w3232.自3&ŁPolylineMLocatian5-Location1255522M2.288ST