公路平面线形自动化设计的实现方法

12(1.2.)0,CAD,CAD,CAD,:1()()CAD,,,,(),,,,,,(DTM),:A(X1,Y1)B(X2,Y2,)C(X3,Y3),::2001-11-23AB=SQR((Y2-Y1)^2+(X2-X1)^2)BC=SQR((Y3-Y2)^2+(X3-X2)^2)AB:FW=ATN(DY/DX)(DX0)FW=1.5707963(DX=0)DX=X2-X1DY=Y2-Y1DY=Y2-Y1FWA=FW(DX=0,DY=0)FWA=180-FW(DX=0,DY=0)FWA=180+FW(DX=0,DY=0)FWA=360-FW(DX=0,DY=0)BCFWB,BA:A=FWA-FWBA0,;A0,2,;,,,,,3,314220026JOURNALOFLIAONINGPROVINCIALCOLLEGEOFCOMMUNICATIONSVol.4No.2Jun.2002©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,:,PJ,PJ0;PJ,PJ0;,PJ1PJ2:PJ13PJ20,;PJ13PJ20,4,,,;(),;,,,,,,:,,(),(AF1,AF2),,,,,4.1:,6;,24.2T1T2,Lmin,T1+Lmin+T2;,T1+T2;55.1:5.1.1DXL,Lmin,PXmin,:DXL-Lmin=PXmin,T1=DXL/2DXL-LminPXmin,T1=(DXL-Lmin)/25.1.2:DXL,T1,Lmin,:DXL-Lmin-T1PXmin/2,T2=DXL-T1DXL-Lmin-T1PXmin/2,T2=DXL-Lmin-T15.2:,,,;,;LS:;LS:LY:LS=1:1:1LS55.3,,CAD,,CAD,,,:,CAD,,CAD,(41)412002©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2,,,DesignanddevelopTollingSystemofCATVSongZhenjunShiYanpengSongChengzhenAbstractThedevelopmentofCATVisveryfast,anditusestheservicestylethattheuseroftheCATVmustpayforit;WithTheincreaseoftheuser,inthepast,toestablisharchivesandmanageusershavetodoitwithhands,whichcantsatishfiedourneedsnow,soanewtollingsys2temwithwhichcomputermustbeused.Onthebasementofrequirmentanalysisoftheuser,ImadearationaldatamodelanduseOOPtodesignanddevelopthissystem.Atlast,thissystemhavereachedthedesignobjective,itcanstoreusersinformationsafelyandsecurely,feeefficient2lyandrapidlyandmanagedexterouslyanddiversifedlly,soitismorepracticalanduniversal.KeywordsCATVTollingsystemMIS(14)RealizableMethodsofAutomaticDesigninHighwayHorizontalAlignmentDuanChenggangLiYunfengLiangGuiqiangAbstractsThispaperintroducesthemethodshowtorealizeautomaticdesigninhighwayhori2zontalaligmnent,andprovideswayshowtoreadtheoriginaldataandtechnicalindex.Keywordshorizontalaligmentdesignautomationmethods142:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.