CityEngine使用Python腳本按feature導(dǎo)出道路模型在CityEngine中進(jìn)行道路導(dǎo)出時(shí)有兩個(gè)選項(xiàng):A.GranularityfileFileSizeGmit(MB)MeshUsefilesizelimit：將所選的道路導(dǎo)出為一個(gè)obj文件Createone:將所選的道路按照網(wǎng)絡(luò)節(jié)點(diǎn)，每個(gè)線段導(dǎo)出為一個(gè)obj以上兩種可選導(dǎo)出方式均不能將一條完整的道路導(dǎo)出為一個(gè)obj文件，即無(wú)法按照Feature將道路分別導(dǎo)出為獨(dú)立的模型文件。為了實(shí)現(xiàn)按feature導(dǎo)出道路，需要用到CityEngine中的Python腳本進(jìn)行自定義的導(dǎo)出。一：依據(jù)道路名稱導(dǎo)出單條道路1、在道路圖層屬性數(shù)據(jù)中添加Name字段，類型為Text1、在道路圖層屬性數(shù)據(jù)中添加Name字段，類型為Text2、為Name字段賦值（非中文）3、生成道路模型COLORAUOii：lr^j-■nCATA1LNA址? LsgihE卑<t?^afiDrarrta3、生成道路模型COLORAUOii：lr^j-■nCATA1LNA址? LsgihE卑<t?^afiDrarrta就■：■?^jraphNslw&rlcs-Veets1￡B7Obi亠INetwork/UNION昇un^iONUIV1ONUMON」IMav環(huán)血SS1B$|樂(lè)鶴瞪EE$為R#Kfaf4iAi卑 Mt/iide.<^32_f?tpnritR.-DDfBJype-xga哺3jwlpnntA^B-'uiltcg^吟^mDdffrnSfreeli.cga號(hào)S.kwifevBy.c^■*&fWr?65ff]<?d-|曜;T曲詩(shī)”?打.fsearchexpres引口「/RHODESl|Viewport璐4、新建腳本文件，并編輯如下:Crsatsdon2912-5-7(SautAor;YTXirrrfremscriptmgiitpcrt*ce=CE()shapes=ce?ge^Objeccsfrom(cesce,wichNsutie<)cc.secSelCGDion(shapes)■s亡"ing$=03uZxpor^ModelSettings0z亡匸匸ings.se^GeneralLocation(,rci:/i:e^r,).s^tCen^X^lPaitie("陽(yáng)豆比m")■ce.exporx:[(]ce.selection()?settings)參數(shù)解釋：ce.withName(“'UNION中的)UNION為道路的NameName為導(dǎo)出后的模型文件名D:/tmp為導(dǎo)出路徑5、選中一個(gè)模型后，F(xiàn)ile----Export----ExportModelsofSelectedShapes(allmodelsaregenerated),之后選中ScriptBasedExport(Python),最后在MiscOptions中選擇腳本。ChooseformatformodeIexportCurrentselection:170objects兮KeyholeMarkupLanguage(KML)cisCollada1.4.1Autodesk?FBX?2012Autodesk?3DSAutodesk?FBX?2012Autodesk?3DSewwtwWavefrontOBJEsriFileGDB(Beta)E-OnSoftware?VueEsriFileGDB(Beta)E-OnSoftware?VueScriptBasedExport(Python)mAKHIWScriptBasedExport(Python)mAKHIWRealityServer?Jmentalray?Pixar?Renderman?RIBMassivePrime?(BETA)<BackNext>FinishCancelScriptBasedExport(Python)Currentselectian:170objects木Granularityz%AleshComponents■ALMkcDpt[on￡BrowseBrowse；.-/Pasadsna/scripts/RoadEjcportpy7Optimizabons■eRrtrkNestAIfFinish1丨Cflnnpl6、點(diǎn)擊Finish,導(dǎo)出模型N諒g咖2-i::?f<="jl&modchNamejlntj包Nsffl&kg JI：Name.mH樂(lè)5treK_3arw?arTowsprpg削slrertjarnjlnp.png島山電也胡的」M卩出JL^nJw二：依據(jù)道路名稱將道路數(shù)據(jù)全部按要素導(dǎo)出本次在使用客戶實(shí)際數(shù)據(jù)時(shí)的處理方式為：1、將道路GIS數(shù)據(jù)添加的Name字段賦值為其FID，重新加載網(wǎng)絡(luò)數(shù)據(jù)并生成模型2、修改Python腳本為：Jf4Createdon2012-S-7^?aurhor;YYX4JJfremscript1ngimport*ce=CE{}foriinrange(0,2B):name=str(1.)shapes=ce*getObjectsFrom(ce,scenef.aeTwit?iNanL&(name))ce.setSelection(s?ia口竟mJsettings=03JExportModelSetrings()jettings.setGeneralLocatior.{"￡:?ten:p,hr)settings.seEGer：eralNajTLe(naite)ce.exparr(ce.selection(),se^^ings)Range參數(shù)中的28為道路的數(shù)量+1（目前是根據(jù)道路的數(shù)量來(lái)進(jìn)行循環(huán)模型導(dǎo)出）

3、執(zhí)行上述腳本即可得到結(jié)果Navigator図Navigator図“modelsO.mtlL_0.objIlogmtl10_0ofcJWJcglQ.mtlll_0.objlcglLmtllJ_0.ohjUfTTltl13_0.Qbj13.logUtmtl14._0.objId-,logI_|0_0.objI_|0_0.obj注意事項(xiàng)：1、本文檔使用的示例數(shù)據(jù)為教程中Pasade