太陽系行星軌道及運行

太陽系行星軌道及運行動畫演示本程序?qū)μ栂敌行?、衛(wèi)星運行情況進行動畫演示。具有以下功能：可單獨（或全部）顯示或隱藏某個天體、運行軌道、天體名稱?？烧{(diào)節(jié)演示速度、畫面比列、觀察角度（從天球赤道到天球北極觀察太陽系）?？蓪⒛硞€天體（例如月亮）設(shè)置為屏幕中間靜止不動的天體，觀察其他天體相對于該天體運行的情況。本程序改進版見：太陽系行星軌道及運行-3D立體動畫演示通過設(shè)置不同的參數(shù)，可得到許多美麗而奇妙的圖案，如下：

'需在窗體放置以下3個控件，所有控件均采用默認設(shè)置：'Picturel，Commandl，Timerl'注意：在屬性窗口將Commandl的Index屬性設(shè)置為0'其次，為窗體添加一個名為mFast的菜單，再為mFast添加一個名為mmFast的下級子菜單，并將mmFast的索引設(shè)置為0。,艮即mmFast是以序號0開頭的菜單數(shù)組控件的第一個。'以下是窗體代碼，在VB6.0調(diào)試通過：DimctD()AstyD,ctDsAsLong,ctPAsSingle,ctCenterAsLongDimctBiAsSingle,ctVAsSingle,ctTrackAsBoolean,ctBWAsLongDimctSeeJAsLong,ctSeeBiAsSingle,ctSetAsMenuSet'定義表示天體的數(shù)據(jù)類型PrivateTypetyDCapAsString'天體名稱rAsLong '天體半徑（像素，下同）aAsSingle '軌道：橫半徑bAsSingle 軌道：縱半徑cAsSingle 軌道：焦點eAsSingle 軌道：偏心率IsHuiAsBoolean'是否彗星FatherAsLong'父天體序號：軌道焦點上的天體SeAsLong '顏色AsSingle '運行角速度JiaoAsSingle'某時刻的與父天體連線角度XAsSingle '天體當(dāng)前坐標(biāo)AsSinglexUpAsSingle '上一時刻坐標(biāo)yUpAsSingleVisibleAsBoolean'是否顯示：球體ShowCapAsBoolean'是否顯示：標(biāo)題GuiDaoAsBoolean'是否顯示：軌道EndTypeEnumMenuSet'以下為選項菜單標(biāo)示ms_All=-2ms_NoAll=-1'以下為按鈕標(biāo)示ms_RunStop=0'開始/暫停ms_Step '步進，下一位置ms_UnRun'后退ms_Track '軌跡：顯示/隱藏ms_DefSet '默認設(shè)置ms_Center '參照系ms_Visible'天體：顯示/隱藏ms_ShowCap '天體名稱ms_GuiDao'軌道m(xù)s_Bi '縮放比ms_V'速度ms_SeeJ'視角EndEnumPrivateSubForm_Load()Me.ScaleMode=3:Me.Caption="太陽系行星運行演示mFast.Visible=False:ctP=3.1415926Timerl.Interval=25:Timerl.Enabled=TrueCallInit'Me.WindowState=vbMaximized'最大化窗體'窗體大小為屏幕的3/4,居中Me.MoveScreen.Width*0.1,Screen.Height*0.1,Screen.Width*0.8,Screen.Height*0.8EndSubPrivateSubForm_Resize()DimIAsLong,LAsSingle,TAsSingle,HAsSingle,H1AsSingle,WAsSingle'設(shè)置控件位置H1=Me.TextHeight("A"):L=H1*0.3:T=LL=3ForI=0ToCommand1.Count-1W=Me.TextWidth(Command1(I).Caption&"ab")Command1(I).MoveL,T,W,H1*2L=L+W+3NextT=T*2+Command1(0).Height:H=Me.ScaleHeight-TIfH>0ThenPicture1.Move0,T,Me.ScaleWidth,H'將Picture1的中心設(shè)置為坐標(biāo)原點Picture1.ScaleMode=3Picture1.ScaleLeft=-Picture1.ScaleWidth*0.5Picture1.ScaleTop=-Picture1.ScaleHeight*0.5Picture1.ClsCallRun1EndSubPrivateSubInit()'初始化天體參數(shù)DimIAsLong,VAsSingle,JAsSinglectBW=0'40'四周邊界空白區(qū)，僅用于調(diào)試。調(diào)試完畢應(yīng)設(shè)為0。調(diào)試代碼****Picture1.AutoRedraw=TruePicture1.BackColor=&H220000'&HFFFFFF'ctCenter=0:ctBi=1:ctV=1'參照系(位于中心的天體)，縮放比列，速度ctSeeJ=30:ctSeeBi=ctSeeJ/90'視點角度，視角比ctTrack=False'不顯示運動軌跡(不是軌道)'添加按鈕KjClsCommand1KjAddCommand1,"始/停(&K)”,ms_RunStop,”天體的運動狀態(tài)：開始/暫?！盞jAddCommand1,”進(&J)”,ms_Step,"步進，運行到下一位置”KjAddCommandl,"退(&T)",ms_UnRun,"步進，后退到上一位置"KjAddCommandl,"跡(&A)",ms_Track,"運動軌跡：顯示/隱藏"KjAddCommand1,"默(&D)",ms_DefSet,"將所有參數(shù)恢復(fù)為默認設(shè)置"KjAddCommand1,"參照系(&C)",ms_Center,"設(shè)置參照系(位于中心的天體)"KjAddCommand1,"天體(&X)",ms_Visible,"天體：顯示/隱藏"KjAddCommand1,"名稱(&M)",ms_ShowCap,"天體名稱：顯示/隱藏"KjAddCommand1,"軌道(&G)",ms_GuiDao,"天體運行軌道：顯示/隱藏"KjAddCommand1,"速度(&V)",ms_V,"設(shè)置速度"KjAddCommand1,"視角(&L)",ms_SeeJ,"設(shè)置視點角度"KjAddCommand1,"縮放(&S)",ms_Bi,"設(shè)置縮放比列"'添加天體(演示比列狀態(tài)下)，半徑以100像素為標(biāo)準(zhǔn)'參數(shù)依次是：名稱，父天體名稱，天體半徑，軌道長半軸，軌道偏心率，運動角速度，天體顏色，初始角度，彗星否ctDs=-1:ReDimctD(0)AddCircle”太陽”,二22,2,0,ctP*0.008,RGB(255,200,0)AddCircle”水星"，""，5,0.5,0.206,ctP*0.03,&H999999AddCircle”金星”，二9,0.8,0.0068,ctP*0.018,&H55AAAAAddCircle”地球”,二10,1.2,0.0167,ctP*0.01,RGB(0,0,255)AddCircle”月亮”，”地球”,4,0.2,0,ctP*0.06,&H888888AddCircle”嫦娥1號”，”月亮”,2,0.06,0,ctP*0.12,&HCCCCCCAddCircle”火星”，二6,1.8,0.093,ctP*0.005,&H1155FFAddCircle”火衛(wèi)1",”火星”,3,0.1,0,ctP*0.1,&HFFFF00,ctP*2*0.3AddCircle”火衛(wèi)2”,”火星”,3,0.15,0,ctP*0.1,&H7777FF,ctP*2*0.7AddCircle"木星"，"",16,3,0.0483,ctP*0.003,&HEEDDCCTOC\o"1-5"\h\zAddCircle”木衛(wèi) 1”,”木星”，2,0.25, 0, ctP *0.05, &H883487, ctP *2* 0.2AddCircle”木衛(wèi) 2”,”木星”，2,0.3,0,ctP* 0.035, &H348888, ctP *2* 0.4AddCircle”木衛(wèi) 3",”木星”,3,0.35, 0, ctP *0.03, &HAA34CC,ctP*2 *0.6AddCircle”木衛(wèi) 4",”木星”，4,0.45, 0, ctP *0.02, &H888888, ctP *2* 0.8AddCircle"土星"，"",14,5,0.056,ctP*0.002,&H5599FFAddCircle”土衛(wèi)6",”土星”，4,0.25,0,ctP*0.055,&H99EEEEAddCircle”天王星”，"",12,6.5,0.0461,ctP*0.0015,&HFFCCCCAddCircle”天衛(wèi)3",”天王星”，3,0.2,0,ctP*0.05,&H33FF88,ctP*2*0.5AddCircle”天衛(wèi)4",”天王星”，3,0.3,0,ctP*0.035,&HFF3311,ctP*2*0.8AddCircle”海王星”，"",12,9,0.0097,ctP*0.001,&HFF7766AddCircle”海衛(wèi)1”,”海王星”，3,0.25,0,-ctP*0.03,&H882388AddCircle”哈雷彗星”,"",2,5.5,0.83,ctP*0.0012,&H777777,ctP*1,TrueCallForm_ResizeEndSubPrivateSubCommand1_Click(IndexAsInteger)DimIAsLong,JAsLong,nStrAsString,ZuAsVariantDimnSelAsLong,nAllAsLong,nNoAsLongctSet=Val(Command1(Index).Tag)'得到按鈕標(biāo)示KjClsmmFast '清除菜單'裝載快捷菜單，并勾選選定項目SelectCasectSetCasems_DefSet:CallInit:Run1:ExitSub '默認設(shè)置Casems_RunStop:Timer1.Enabled=NotTimer1.Enabled:ExitSub'開始/暫停Casems_Track:ctTrack=NotctTrack:Picture1.Cls:CallRun1'保留運動軌跡Casems_Step'步進，前進到下一位置IfNotTimer1.EnabledThenRun1TrueTimer1.Enabled=FalseCasems_UnRun'步進，后退到下一位置IfNotTimer1.EnabledThenRun1True,TrueTimer1.Enabled=FalseCasems_Bi'縮放比列Zu=Array(0.1,0.2,0.3,0.4,"-",0.5,0.6,0.7,0.8,0.9,"-",1,1.2,1.5,1.8,2,3,5,8,10)KjAddZummFast,Zu,ctBi,"倍":GoToShow1'添加數(shù)組菜單，并勾選ctBiCasems_SeeJ'視點角度Zu=Array("90度(天球北極)"，"80度"，"70度"，"60度"，"50度"，"45度"，"40度”,"30度”,"20度”,"15度”,"10度”,"5度”,"0度(天球赤道)")KjAddZummFast,Zu,ctSeeJ:GoToShow1'添加數(shù)組菜單，并勾選ctSeeJCasems_V'速度Zu=Array(0.1,0.2,0.3,0.4,”-”,0.5,0.6,0.7,0.8,0.9,"-",1,1.5,2,2.5,3,4,5,7.5,10)KjAddZummFast,Zu,ctV,”倍”:GoToShow1CaseElse'裝載天體名稱ForI=0ToctDsJ=Ji(I)'天體I的級別KjAddmmFast,"&"&I&""&String(J*2,"")&ctD(I).CapNextEndSelect'勾選選定天體SelectCasectSetCasems_Center:mmFast(ctCenter).Checked=True:GoToShow1'參照系(中心天體)Casems_ShowCap'顯示天體名稱ForI=0ToctDs:mmFast(I).Checked=ctD(I).ShowCap:NextCasems_Visible'天體是否可見ForI=0ToctDs:mmFast(I).Checked=ctD(I).Visible:NextCasems_GuiDao'軌道ForI=0ToctDs:mmFast(I).Checked=ctD(I).GuiDao:NextCaseElse:ExitSubEndSelectKjAddmmFast,"-"nAll=KjAdd(mmFast,"全選”,ms_All)nNo=KjAdd(mmFast,"全不選"，ms_NoAll)ForI=0ToctDsIfmmFast(I).CheckedThennSel=nSel+1NextIfnSel=0ThenmmFast(nNo).Checked=True:mmFast(nNo).Enabled=FalseIfnSel=ctDs+1ThenmmFast(nAll).Checked=True:mmFast(nAll).Enabled=FalseShow1:Command1(Index).BackColor=&HFFCCCC'將選中按鈕設(shè)置為淡藍色Me.PopupMenumFast,,Command1(Index).Left,Command1(Index).Top+Command1(Index).Height-3Command1(Index).BackColor=Me.BackColorEndSubPrivateSubmmFast_Click(IndexAsInteger)'通過快捷菜單設(shè)置天體有關(guān)參數(shù)DimnTagAsMenuSet,IAsLong,TFAsBooleannTag=Val(mmFast(Index).Tag)'菜單標(biāo)示：ms_All全選，ms_NoAll全不選SelectCasectSet'ctSet:按鈕標(biāo)示，在Command1_Click中設(shè)置Casems_V'速度ctV=Val(mmFast(Index).Caption)Casems_SeeJ'視點角度ctSeeJ=Val(mmFast(Index).Caption)'視點角度ctSeeBi=ctSeeJ/90'視角比ForI=0ToctDs:ctD(I).xUp=0:ctD(I).yUp=0:NextCasems_Bi'縮放比列ctBi=Val(mmFast(Index).Caption)ForI=0ToctDs:ctD(I).xUp=0:ctD(I).yUp=0:NextCasems_Center'參照系(中心天體)ctCenter=IndexForI=0ToctDs:ctD(I).xUp=0:ctD(I).yUp=0:NextCasems_ShowCap'顯示名稱IfIndex<=ctDsThenctD(Index).ShowCap=NotctD(Index).ShowCapElseTF=nTag=ms_AllForI=0ToctDs:ctD(I).ShowCap=TF:NextEndIfCasems_Visible'天體是否可見IfIndex<=ctDsThenctD(Index).Visible=NotctD(Index).VisibleElseTF=nTag=ms_AllForI=0ToctDs:ctD(I).Visible=TF:NextEndIfCasems_GuiDao'軌道IfIndex<=ctDsThenctD(Index).GuiDao=NotctD(Index).GuiDaoElseTF=nTag=ms_AllForI=0ToctDs:ctD(I).GuiDao=TF:NextEndIfEndSelectPicture1.ClsCallRun1EndSubPrivateSubAddCircle(nNameAsString,nFatherAsString,rAsLong,aAsSingle,eAsSingle,VAsSingle,_OptionalSeAsLong=255,OptionalJiaoAsSingle,OptionalIsHuiAsBoolean)'添加一個天體，參數(shù)依次是：'名稱，父天體名稱，天體半徑，軌道長半軸，軌道偏心率，運動角速度，天體顏色，初始角度，彗星否DimIAsLong,JAsLonga=a*100'半徑以100像素為標(biāo)準(zhǔn)ctDs=ctDs+1:ReDimPreservectD(ctDs)'設(shè)置父天體編號ForI=0ToctDs-1IfLCase(ctD(I).Cap)=LCase(nFather)ThenctD(ctDs).Father=I:ExitForNextctD(ctDs).Cap=nName:ctD(ctDs).r=r:ctD(ctDs).a=actD(ctDs).c=a*e:ctD(ctDs).b=Sqr(a八2-ctD(ctDs).c八2)ctD(ctDs).IsHui=IsHui:ctD(ctDs).V=V:ctD(ctDs).Se=SectD(ctDs).xUp=0:ctD(ctDs).yUp=0:ctD(ctDs).Visible=TruectD(ctDs).GuiDao=TrueRandomizeIfJiao=0ThenctD(ctDs).Jiao=Rnd*ctP*2ElsectD(ctDs).Jiao=JiaoEndSubPrivateFunctionKjAddZu(Kj,ZuAsVariant,ByValCheckStrAsString,OptionalSameStrAsString)'添加一個數(shù)組菜單，并勾選標(biāo)題為CheckStr的條目DimIAsLong,JAsLong,nCapAsStringIfLeft(CheckStr,1)="."ThenCheckStr="0"&CheckStrForI=LBound(Zu)ToUBound(Zu)nCap=Zu(I)IfLeft(nCap,1)="."ThennCap="0"&nCapIfnCap="-"ThenJ=KjAdd(Kj,nCap)ElseJ=KjAdd(Kj,nCap&SameStr)'IfLCase(CheckStr)=LCase(nCap)ThenKj(J).Checked=TrueIfVal(CheckStr)=Val(nCap)ThenKj(J).Checked=TrueNextEndFunctionPrivateFunctionKjAdd(Kj,nCapAsString,OptionalnTagAsString,OptionalnNoteAsString)AsLong'為數(shù)組控件添加一個成員，返回新添加的成員序號DimIAsLongI=Kj.Count-1IfKj(I).Caption<>""ThenI=I+1:LoadKj(I)OnErrorResumeNextKj(I).Checked=FalseKj(I).Caption=nCapKj(I).Tag=nTagKj(I).ToolTipText=nNoteKj(I).Visible=TrueKjAdd=IEndFunctionPrivateFunctionKjCls(Kj)AsLong'卸載數(shù)組控件的所有成員(0號除外)DimIAsLongForI=Kj.Count-1To1Step-1UnloadKj(I)NextOnErrorResumeNextKj(0).Caption=""Kj(0).Checked=FalseEndFunctionPrivateFunctionCapToNum(nCapAsString)AsLong'返回名稱為nCap的天體編號DimIAsLongForI=0ToctDsIfLCase(ctD(I).Cap)=LCase(nCap)ThenCapToNum=I:ExitFunctionNextCapToNum=-1EndFunctionPrivateFunctionJi(ByValDAsLong)AsLong'返回天體級別(編號為D)DoIfctD(D).Father=0ThenExitDoD=ctD(D).Father:Ji=Ji+1LoopEndFunctionPrivateSubTimer1_Timer()Run1TrueEndSubPrivateSubRun1(OptionalnRunAsBoolean,OptionalUnRunAsBoolean)'顯示一次運行的瞬時狀態(tài)DimwBAsSingle,hBAsSingle,XAsSingle,YAsSingle,ZuY()AsLongDimIAsLong,TAsLong,SeAsLong,rAsSingleDimCenXAsSingle,CenYAsSingle,InDAsBoolean,InD1AsBoolean'計算天體瞬時位置：相對與父天體的角度ForI=0ToctDsIfnRunThenIfUnRunThenX=ctD(I).Jiao-ctD(I).V*ctVElseX=ctD(I).Jiao+ctD(I).V*ctV'保證數(shù)值在0到ctP*2的范圍內(nèi)IfX>ctP*2ThenX=X-ctP*2IfX<0ThenX=X+ctP*2ctD(I).Jiao=XEndIf'IfI=CapToNum("地球")ThenMe.Caption=ctD(I).Jiao/ctP*180'調(diào)試代碼****ctD(I).X=ctBi*(ctD(I).a*Sin(ctD(I).Jiao)+ctD(I).c)ctD(I).Y=ctBi*ctSeeBi*(ctD(I).b*Cos(ctD(I).Jiao))'加上父天體的位置ctD(I).X=ctD(I).X+ctD(ctD(I).Father).X:ctD(I).Y=ctD(I).Y+ctD(ctD(I).Father).YNext'移位參照系CenX=ctD(ctCenter).X:CenY=ctD(ctCenter).Y'中心天體位置ForI=0ToctDsctD(I).X=CenX-ctD(I).X:ctD(I).Y=CenY-ctD(I).YNextSortYZuY'將天體按Y坐標(biāo)排序，數(shù)組ZuY()返回排序后的天體序號Picture1.Font.Size=9:Picture1.ForeColor=&HFFFFFFwB=Picture1.ScaleWidth*0.5-ctBW:hB=Picture1.ScaleHeight*0.5-ctBW'可視區(qū)大小IfNotctTrackThenPicture1.Cls'保留軌跡，不擦除上次圖像IfctBW>0ThenPicture1.Line(-wB,-hB)-(wB,hB),,B可見區(qū)方框，調(diào)試代碼****ForT=0ToctDs'按天體Y坐標(biāo)依次畫出各天體I=ZuY(T)'天體實際編號X=ctD(I).X:Y=ctD(I).Y:r=ctBi*ctD(I).rIfr<2Thenr=2'畫一個天體CallSubGuiDao(I)'畫I的衛(wèi)星軌道：上半部分InD=Not(X+r<-wBOrX-r>wBOrY+r<-hBOrY-r>hB)'是否在可見區(qū)內(nèi)IfctD(I).VisibleAndInDThenIfctD(I).IsHuiThenTailI,X,Y'畫彗尾Picture1.FillColor=ctD(I).Se:Picture1.FillStyle=0'打開填充Picture1.Circle(X,Y),r,0 '畫天體Picture1.FillStyle=1 '關(guān)閉填充EndIfCallSubGuiDao(I,True)'畫I的衛(wèi)星軌道：下半部分'顯示天體名稱IfctD(I).ShowCapThenIfI=0ThenShowStrwB,hB,ctD(I).Cap,X,Y-Picture1.TextHeight("A")*0.5,True,0ElseShowStrwB,hB,ctD(I).Cap,X,Y+r+3,TrueEndIfEndIf'畫運動軌跡：上一個點和當(dāng)前點的連線：有一個在可見區(qū)內(nèi)IfctTrackThenInD1=Not(ctD(I).xUp+r<-wBOrctD(I).xUp-r>wBOrctD(I).yUp+r<-hBOrctD(I).yUp-r>hB)If(InDOrInD1)AndctD(I).xUp<>0AndctD(I).yUp<>0ThenIfctBi<1ThenPicture1.DrawWidth=1ElsePicture1.DrawWidth=ctBi*2Picturel.Line(X,Y)-(ctD(I).xUp,ctD(I).yUp),ctD(I).SePicture1.DrawWidth=1EndIfEndIf'記憶上次位置ctD(I).xUp=X:ctD(I).yUp=YNextEndSubPrivateSubTail(IAsLong,XAsSingle,YAsSingle)'畫天體I的彗尾Dimx0AsSingle,y0AsSingle,SAsSingleDimx1AsSingle,y1AsSingle,JAsSingle'無壓縮時的位置x0=ctD(I).a*Sin(ctD(I).Jiao):y0=ctD(I).b*Cos(ctD(I).Jiao)J=ctBi*Sqr((x0+ctD(I).c)A2+y0八2) '與焦點(即：父天體)距離S=ctBi*(ctD(I).a-ctD(I).c)A2/J-(ctD(I).a-ctD(I).c)/5'彗發(fā)長度：近日距離4/5IfS<0ThenExitSubS=S*ctBiIfS>Picture1.ScaleWidthThenS=Picture1.ScaleWidthx1=ctD(ctD(I).Father).X:y1=ctD(ctD(I).Father).Y'父天體位置x1=S/J*(X-x1):y1=S/J*(Y-y1)Picture1.DrawMode=14:Picture1.DrawWidth=ctD(I).r*3*ctBi+1Picture1.Line(X,Y)-Step(x1,y1),&H999999Picture1.Line(X,Y)-Step(x1,y1),&H999999Picture1.DrawWidth=1:Picture1.DrawMode=13EndSubPrivateSubShowStr(wBAsSingle,hBAsSingle,nStrAsString,ByValXAsSingle,ByValYAsSingle,OptionalCenLRAsBoolean,OptionalSeAsLong=T)'顯示字符wB,hB:可見區(qū)邊界CenLR=T：左右居中DimWAsSingle,HAsSingle,nSeAsLongW=Picturel.TextWidth(nStr):H=Picturel.TextHeight(nStr)IfCenLRThenX=X-W*0.5IfX<-wB-WOrX>wBOrY<-hB-HOrY>hBThenExitSubPicturel.CurrentX=X:Picturel.CurrentY=Y:Picturel.PrintnStrIfSe=-1ThenExitSubnSe=Picturel.ForeColor:Picturel.ForeColor=SePicturel.CurrentX=X+1:Picturel.CurrentY=Y+1Picturel.PrintnStrPicturel.ForeColor=nSeEndSubPrivateSubSortY(ZuY()AsLong)'將天體按Y坐標(biāo)排序，數(shù)組ZuY()返回排序后的天體序號DimIAsLong,JAsLong,KAsLong,SAsLong,y1AsSingleDimY()AsSingleReDimY(0ToctDs)'Y()用于視角為0的情況ForI=0ToctDsIfctSeeBi=0ThenIfctD(I).Jiao>ctP*0.5AndctD(I).Jiao<ctP*1.5ThenY(I)=ctD(I).bElseY(I)=-ctD(I).bEndIfY(I)=Y(I)+Y(ctD(I).Father)'加上父天體的Y坐標(biāo)ElseY(I)=ctD(I).YEndIfNextReDimZuY(0ToctDs)ZuY(0)=0ForI=1ToctDsy1=Y(I)ForJ=0ToI-1I