測繪程序設(shè)計—實驗八 水準網(wǎng)平差程序設(shè)計報告

1、;測繪程序設(shè)計(VC.net)上機實驗報告（Visual C+.Net）班 級： 測繪0901班 學(xué) 號： 0405090204 姓 名： 代婭琴 2012年4月29日實驗八 平差程序設(shè)計基礎(chǔ)一、 實驗?zāi)康?鞏固過程的定義與調(diào)用 鞏固類的創(chuàng)建與使用 鞏固間接平差模型及平差計算 掌握平差程序設(shè)計的基本技巧與步驟二、 實驗內(nèi)容水準網(wǎng)平差程序設(shè)計。設(shè)計一個水準網(wǎng)平差的程序，要求數(shù)據(jù)從文件中讀取，計算部分與界面無關(guān)。1. 水準網(wǎng)間接平差模型：2. 計算示例：近似高程計算：3. 水準網(wǎng)平差計算一般步驟(1)讀取觀測數(shù)據(jù)和已知數(shù)據(jù)；(2)計算未知點高程近似值；(3)列高差觀測值誤差方程；(4)根據(jù)水準路線

2、長度計算高差觀測值的權(quán)；(5)組成法方程；(6)解法方程，求得未知點高程改正數(shù)及平差后高程值；(7)求高差觀測值殘差及平差后高差觀測值；(8)精度評定；(9)輸出平差結(jié)果。4. 水準網(wǎng)高程近似值計算算法 5. 輸入數(shù)據(jù)格式示例實驗代碼：#pragma onceclass LevelControlPointpublic:LevelControlPoint(void);LevelControlPoint(void);public:CString strName;/點名CString strID;/點號float H;bool flag;/標記是否已經(jīng)計算出近似高程值，若計算出則為，否則為;clas

3、s CDhObspublic:CDhObs(void);CDhObs(void);public:LevelControlPoint* cpBackObj;/后視點LevelControlPoint* cpFrontObj;/前視點double ObsValue;/高差值double Dist;/測站的距離;#include StdAfx.h#include LevelControlPoint.hLevelControlPoint:LevelControlPoint(void)strName=_T();strID=_T();H=0;flag=0;LevelControlPoint:LevelCo

4、ntrolPoint(void)CDhObs:CDhObs(void)CDhObs:CDhObs(void)#pragma once#includeLevelControlPoint.h#include Matrix.hclass AdjustLevelpublic:AdjustLevel(void);AdjustLevel(void);public:LevelControlPoint* m_pKnownPoint;/已知點數(shù)組int m_iKnownPointCount;/已知點個數(shù)LevelControlPoint* m_pUnknownPoint;/未知點數(shù)組int m_iUnknown

5、PointCount;/未知點個數(shù)CDhObs* m_pDhObs;/高差觀測值數(shù)組int m_iDhObsCount;/高差觀測值個數(shù)public:void SetKnownPointSize(int size);/創(chuàng)建大小為size的已知點數(shù)組void SetUnkonwnPointSize(int size);/創(chuàng)建大小為size的未知點數(shù)組void SetDhObsSize(int size);/創(chuàng)建大小為size的觀測值數(shù)組bool LoadObsData(const CString& strFile);/讀入觀測文件CString* SplitString(CString str,

6、 char split, int& iSubStrs); void ApproHeignt(void);/計算近似值private:LevelControlPoint* SearchKnownPointUsingID(CString ID);LevelControlPoint* SearchUnknownPointUsingID(CString ID);LevelControlPoint* SearchPointUsingID(CString ID); CMatrix LevleWeight(void);/計算權(quán)矩陣public:void FormErrorEquation(CMatrix &

7、B, CMatrix &L);/組成誤差方程 void EquationCompute(CMatrix &x);/計算法方程void Accuracy_Assessment(double &r0,CMatrix &Qxx);/精度評定void CompAdjust(double &r0,CMatrix Qx);#include StdAfx.h#include AdjustLevel.h#include #include LevelControlPoint.h#include math.hAdjustLevel:AdjustLevel(void)m_pKnownPoint=NULL;/已知點數(shù)

8、組m_iKnownPointCount=0;/已知點個數(shù)m_pUnknownPoint=NULL;/未知點數(shù)組m_iUnknownPointCount=0;/未知點個數(shù)m_pDhObs=NULL;/高差觀測值數(shù)組m_iDhObsCount=0;/高差觀測值個數(shù)AdjustLevel:AdjustLevel(void)if(m_pKnownPoint!=NULL)delete m_pKnownPoint;m_pKnownPoint=NULL;if(m_pUnknownPoint!=NULL)delete m_pUnknownPoint;m_pUnknownPoint=NULL;if(m_pDhO

9、bs!=NULL)delete m_pDhObs;m_pDhObs=NULL;void AdjustLevel:SetKnownPointSize(int size)m_pKnownPoint=new LevelControlPointsize;/創(chuàng)建動態(tài)指針m_iKnownPointCount=size;void AdjustLevel:SetUnkonwnPointSize(int size)m_pUnknownPoint=new LevelControlPointsize;m_iUnknownPointCount=size;void AdjustLevel:SetDhObsSize(in

10、t size)m_pDhObs=new CDhObssize;m_iDhObsCount=size;/高差觀測值個數(shù)bool AdjustLevel:LoadObsData(const CString& strFile)CStdioFile sf;if(!sf.Open(strFile,CFile:modeRead) return false;/創(chuàng)建并打開文件對象CString strLine;bool bEOF=sf.ReadString(strLine);/讀取第一行，即已知點的數(shù)目SetKnownPointSize(_ttoi(strLine);/根據(jù)已知點的數(shù)目，創(chuàng)建已知點數(shù)組；int

11、 n=0;for(int i=0;im_iKnownPointCount;i+)/讀取已知點的點名和高程值sf.ReadString(strLine);CString *pstrData=SplitString(strLine,n);m_pKnownPointi.strName=pstrData0;m_pKnownPointi.strID=pstrData0;m_pKnownPointi.H=_tstof(pstrData1);m_pKnownPointi.flag=1;/已知點不用平差，故將其的flag設(shè)置為delete pstrData;pstrData=NULL;sf.ReadStrin

12、g(strLine);/讀取未知點的個數(shù)SetUnkonwnPointSize(_ttoi(strLine);/根據(jù)未知點的個數(shù)創(chuàng)建未知點數(shù)組sf.ReadString(strLine);/讀取未知點的點名CString *pstrData=SplitString(strLine,n);for(int i=0;im_iUnknownPointCount;i+)/將未知點的點名放入未知點數(shù)組m_pUnknownPointi.strName=pstrDatai;m_pUnknownPointi.strID=pstrDatai;m_pUnknownPointi.H=0;/未知點的高程值設(shè)置為m_pU

13、nknownPointi.flag=0;/還沒有求得近似高程，故其flag設(shè)置為if(pstrData!=NULL)delete pstrData;pstrData=NULL;sf.ReadString(strLine);/讀取觀測值的個數(shù)SetDhObsSize(_ttoi(strLine);/按照觀測值的大小，創(chuàng)建觀測值數(shù)組for(int i=0;im_iDhObsCount;i+)/分行讀取觀測值的數(shù)據(jù)，將其存入觀測值數(shù)組sf.ReadString(strLine);CString *pstrData=SplitString(strLine,n);m_pDhObsi.cpBackObj=

14、SearchPointUsingID(pstrData0);/后視點m_pDhObsi.cpFrontObj=SearchPointUsingID(pstrData1);/前視點m_pDhObsi.HObsValue=_tstof(pstrData2);/高差觀測值m_pDhObsi.Dist=_tstof(pstrData3);/距離觀測值delete pstrData;pstrData=NULL;sf.Close();return 1;CString* AdjustLevel:SplitString(CString str, char split, int& iSubStrs)int iP

15、os = 0; /分割符位置 int iNums = 0; /分割符的總數(shù) CString strTemp = str; CString strRight; /先計算子字符串的數(shù)量 while (iPos != -1) iPos = strTemp.Find(split); if (iPos = -1) break; strRight = strTemp.Mid(iPos + 1, str.GetLength(); strTemp = strRight; iNums+; if (iNums = 0) /沒有找到分割符 /子字符串數(shù)就是字符串本身 iSubStrs = 1; return NUL

16、L; /子字符串數(shù)組 iSubStrs = iNums + 1; /子串的數(shù)量= 分割符數(shù)量+ 1 CString* pStrSplit; pStrSplit = new CStringiSubStrs; strTemp = str; CString strLeft; for (int i = 0; i iNums; i+) iPos = strTemp.Find(split); /左子串 strLeft = strTemp.Left(iPos); /右子串 strRight = strTemp.Mid(iPos + 1, strTemp.GetLength(); strTemp = strR

17、ight; pStrSpliti = strLeft; pStrSplitiNums = strTemp; return pStrSplit;/LevelControlPoint* AdjustLevel:SearchKnownPointUsingID(CString ID)for(int i=0;im_iKnownPointCount;i+)if(m_pKnownPointi.strID=ID)return &m_pKnownPointi;return NULL;/LevelControlPoint* AdjustLevel:SearchUnknownPointUsingID(CString

18、 ID)for(int i=0;im_iUnknownPointCount;i+)if(m_pUnknownPointi.strID=ID)return &m_pUnknownPointi;return NULL;LevelControlPoint* AdjustLevel:SearchPointUsingID(CString ID)LevelControlPoint* cp;cp=SearchKnownPointUsingID(ID);if(cp=NULL)cp=SearchUnknownPointUsingID(ID);return cp;void AdjustLevel:ApproHei

19、gnt(void)/用于計算高程近似值的函數(shù)for(int i=0;im_iUnknownPointCount;i+)/計算未知點高程值if(m_pUnknownPointi.flag!=1)/先在未知點作為觀測值的前視點的情況for(int j=0;jstrID=m_pUnknownPointi.strID)& m_pDhObsj.cpBackObj-flag=1 ) /前視點=后視點-高差/*m_pUnknownPointi.H=m_pDhObsi.cpBackObj-H - m_pDhObsi.ObsValue;*/m_pUnknownPointi.H=m_pDhObsj.cpBackO

20、bj-H + m_pDhObsj.HObsValue;m_pUnknownPointi.flag=1; break;if(m_pUnknownPointi.flag!=1)/如果經(jīng)過上一步驟未知點仍沒有計算出近似值for(int j=0;jstrID=m_pUnknownPointi.strID)& m_pDhObsj.cpFrontObj-flag=1 ) /后視點=前視點+高差 m_pUnknownPointi.H=m_pDhObsj.cpFrontObj-H-m_pDhObsj.HObsValue; /* m_pUnknownPointi.H=m_pDhObsi.cpFrontObj-H

21、+m_pDhObsi.ObsValue;*/ m_pUnknownPointi.flag=1; break; if(i=m_iUnknownPointCount-1)/如果已經(jīng)計算到最后一個未知點for(int a=0;am_iUnknownPointCount;a+)if(m_pUnknownPointi.flag!=1)/只要有一個未知點的近似高程直沒有計算 /則要重新進行上面的步驟直到所有的未知點的近似高程值都計算出i=-1;break;CMatrix AdjustLevel:LevleWeight(void)CMatrix p(m_iDhObsCount,m_iDhObsCount);

22、p.Unit();double value;for(int i=0;im_iDhObsCount;i+)value=(1.0/m_pDhObsi.Dist);p(i,i)=value;return p;void AdjustLevel:FormErrorEquation(CMatrix &B, CMatrix &L)B.SetSize(m_iDhObsCount,m_iUnknownPointCount);L.SetSize(m_iDhObsCount,1);for(int i=0;istrID);tmpFront=SearchPointUsingID(m_pDhObsi.cpFrontObj

23、-strID);/找到與第i個觀測值有關(guān)的未知點tmpBack-strID;for(int j=0;jstrID)/如果是后視點則前面的系數(shù)為-1 B(i,j)=-1;continue;if(m_pUnknownPointj.strID=tmpFront-strID)/如果是前視點則前面的系數(shù)為 B(i,j)=1;/建立L矩陣 CString tmp;for(int i=0;iH-m_pDhObsi.cpFrontObj-H);*/L(i,0)=m_pDhObsi.HObsValue-(m_pDhObsi.cpFrontObj-H - m_pDhObsi.cpBackObj-H);tmp.Fo

24、rmat(_T(%.3f),L(i,0);L(i,0)=_tstof(tmp);L(i,0)=L(i,0)*1000;/將單位化為mmvoid AdjustLevel:EquationCompute(CMatrix &x)/計算法方程CMatrix P,B,l;P=LevleWeight(); /P為權(quán)矩陣FormErrorEquation(B,l);ApproHeignt();CMatrix BT(m_iUnknownPointCount,m_iDhObsCount);BT=B; /B的轉(zhuǎn)置矩陣CMatrix NBB(m_iUnknownPointCount,m_iUnknownPointC

25、ount);NBB=BT*P*B;CMatrix NBBl=NBB.Inv();x=NBBl*BT*P*l;for(int i=0;im_iUnknownPointCount;i+)m_pUnknownPointi.H+=x(i,0);/未知點高程值=近似值+改正數(shù)void AdjustLevel:Accuracy_Assessment(double &r0,CMatrix &Qxx)/精度評定CMatrix B,l,P,x;P=LevleWeight(); /P為權(quán)矩陣FormErrorEquation(B,l);EquationCompute(x);CMatrix v(m_iDhObsCo

26、unt,1);v=B*x-l;CMatrix vT(1,m_iDhObsCount);vT=v;CMatrix r/*(1,l)*/;r=vT*P*v;r0=sqrt(r(0,0)/(m_iDhObsCount-m_iUnknownPointCount);/單位權(quán)中誤差Qxx.SetSize(m_iUnknownPointCount,m_iUnknownPointCount);CMatrix BT(m_iUnknownPointCount,m_iDhObsCount);BT=B;CMatrix NBB(m_iUnknownPointCount,m_iUnknownPointCount);NBB

27、=BT*P*B;Qxx=NBB.Inv();void AdjustLevel:CompAdjust(double &r0,CMatrix Qx)ApproHeignt();/計算未知點的近似高程值并且存入數(shù)組CMatrix P(m_iDhObsCount,m_iDhObsCount);P=LevleWeight();/p為權(quán)矩陣CMatrix B,L;CMatrix x,Qxx;FormErrorEquation(B,L);/組成誤差方程，B為系數(shù)矩陣，l為常數(shù)項EquationCompute(x);/計算法方程Accuracy_Assessment(r0,Qxx);/精度評定for(int

28、i=0;im_iUnknownPointCount;i+)/未知點高程中誤差Qxi=sqrt(Qxx(i,i)*r0;#include Matrix.h#include locale.h#include LevelControlPoint.h#include AdjustLevel.hAdjustLevel LevelComput;CString* SplitString(CString str, char split, int& iSubStrs)int iPos = 0; /分割符位置 int iNums = 0; /分割符的總數(shù) CString strTemp = str; CStrin

29、g strRight; /先計算子字符串的數(shù)量 while (iPos != -1) iPos = strTemp.Find(split); if (iPos = -1) break; strRight = strTemp.Mid(iPos + 1, str.GetLength(); strTemp = strRight; iNums+; if (iNums = 0) /沒有找到分割符 /子字符串數(shù)就是字符串本身 iSubStrs = 1; return NULL; /子字符串數(shù)組 iSubStrs = iNums + 1; /子串的數(shù)量= 分割符數(shù)量+ 1 CString* pStrSpli

30、t; pStrSplit = new CStringiSubStrs; strTemp = str; CString strLeft; for (int i = 0; i iNums; i+) iPos = strTemp.Find(split); /左子串 strLeft = strTemp.Left(iPos); /右子串 strRight = strTemp.Mid(iPos + 1, strTemp.GetLength(); strTemp = strRight; pStrSpliti = strLeft; pStrSplitiNums = strTemp; return pStrSp

31、lit;void CIndircLelveDlg:OnBnClickedOpendatafile()/ TODO: 在此添加控件通知處理程序代碼UpdateData(TRUE);CFileDialog dlgFile(TRUE,_T(txt),NULL,OFN_ALLOWMULTISELECT|OFN_EXPLORER,_T(文本文件)|*.txt);/創(chuàng)建文件對話框if(dlgFile.DoModal()=IDCANCEL) return;/如果選擇取消按鈕則返回CString strFileName=dlgFile.GetPathName();/打開獲取文件文件名setlocale(LC_

32、ALL,); /設(shè)置語言環(huán)境CStdioFile sf;if(!sf.Open(strFileName, CFile:modeRead) return;InputContent.Empty();/清空字符串str_openContent中的內(nèi)容CString strLine;BOOL bEOF=sf.ReadString(strLine);/讀取第一行數(shù)據(jù)while(bEOF)/開始讀取頂點數(shù)據(jù)bEOF=sf.ReadString(strLine); if(bEOF) InputContent+=strLine+_T(rn); sf.Close();UpdateData(FALSE);void

33、 CIndircLelveDlg:OnBnClickedSavedata()/ TODO: 在此添加控件通知處理程序代碼 UpdateData(TRUE);CFileDialog dlgFile(FALSE,_T(txt),NULL,OFN_EXPLORER,_T(Level格式)|*.txt);if(dlgFile.DoModal()=IDCANCEL) return;CString strFileName=dlgFile.GetPathName();setlocale(LC_ALL,); CStdioFile sf;if(!sf.Open(strFileName, CFile:modeCr

34、eate|CFile:modeWrite) return;sf.WriteString(LevleContent);sf.Close();UpdateData(FALSE);void CIndircLelveDlg:OnBnClickedComputelevel()/ TODO: 在此添加控件通知處理程序代碼UpdateData(TRUE); setlocale(LC_ALL,); double *Qx=new doubleLevelComput.m_iUnknownPointCount;double r0;LevelComput.CompAdjust(r0,Qx);LevleContent.Format(_T(平差后高程值:rn);CString Temp;for(int i=0;iLevelComput.m_iUnknownPointCount;i+) Temp.Empty();Temp.Format(_T(%s,%.4frn), LevelComput.m_pUnknownPointi.strID,LevelComput.m_pUnknownPointi.H);LevleContent+=Temp;Temp.Format(_T(單位權(quán)中誤差：%.1f mmrn),r0