VC++6.0中MsChart控件的用法

 

1.   MSChart制图类

1.1 添加MSChart控件

MSChart是VC++6.0中自带的一个特殊控件类，用于绘制坐标曲线图。如果要使用这个控件，则可以按下图的示意进行添加此控件。

       

1.2   MSChart控件的使用方法

首先在要使用的类的实现文件中包含如下头文件：

#include "VcPlot.h"

#include "VcAxis.h"

#include "VcValueScale.h"

#include "VcSeriesCollection.h"

#include "VcSeries.h"

#include "VcPen.h"

#include "VcCategoryScale.h"

#include "VcColor.h"

#include "VcDataGrid.h"

#include "VcBackdrop.h"

#include "VcFill.h"

#include "VcBrush.h"

#include "VcDataPoints.h"

#include "VcDataPoint.h"

#include "VcDataPointLabel.h"

#include "VcAxisTitle.h"

#include "math.h"

在要使用的类的头文件中包含：

#include "mschart.h"    

本系统中按照如下函数调用来实现MSChart类绘制故障树重要度曲线的功能（CDrawImp是调用MSChart的类）。

1.2.1             类中变量定义

class CDrawImp : public CDialog

{

// Construction

public:

       void DrawChart(int type);

       void initmschart();

       CMSChart m_Chart;

……

}

1.2.2             类中MSChart的初始化函数

void CDrawImp::initmschart()

{

       // 下面两句改变背景色

       m_Chart.GetBackdrop().GetFill().SetStyle(1);

      

       // 显示图例

       m_Chart.SetShowLegend(FALSE);

       m_Chart.SetColumn(1);

       m_Chart.SetChartType(3);

 

       // 栈模式

       m_Chart.SetStacking(FALSE);

 

       // Y轴设置

       VARIANT var;

//不自动标注Y轴刻度

       m_Chart.GetPlot().GetAxis(1,var).GetValueScale().SetAuto(FALSE);            

//Y轴刻度10等分

       m_Chart.GetPlot().GetAxis(1,var).GetValueScale().SetMajorDivision(10);

//每刻度一个刻度线

       m_Chart.GetPlot().GetAxis(1,var).GetValueScale().SetMinorDivision(1); 

//不自动标注X轴刻度

       m_Chart.GetPlot().GetAxis(0,var).GetCategoryScale().SetAuto(FALSE);

//每刻度一个标注           

       m_Chart.GetPlot().GetAxis(0,var).GetCategoryScale().SetDivisionsPerLabel(0);

//每刻度一个刻度线

       m_Chart.GetPlot().GetAxis(0,var).GetCategoryScale().SetDivisionsPerTick(1);

       m_Chart.GetPlot().GetAxis(0,var).GetAxisTitle().SetText("基本故障事件(对应表2中的序号)");// X轴名称

 

       // 1条曲线

       m_Chart.SetColumnCount(1);

       // 数据点类型显示数据值的模式(对柱柱状图和点线图有效)

       // 0: 不显示 1: 显示在柱状图外

       // 2: 显示在柱状图内上方     3: 显示在柱状图内中间 4: 显示在柱状图// 内下方

       m_Chart.GetPlot().GetSeriesCollection().GetItem(1).GetDataPoints().GetItem(-1).GetDataPointLabel().SetLocationType(0);

}

 

void CDrawImp::DrawChart(int type)

{

       int nRowCount =bs.FactDictoryList.GetCount();

       VARIANT var;

       m_Chart.SetRowCount(nRowCount);

       m_Chart.GetPlot().GetSeriesCollection().GetItem(1).GetPen().GetVtColor().Set(0, 0, 255);

       char buf[32];

 

/*    double max = 0.0;

       double min = 10.0;

       double temp;

       for (int i=0; i

       {

              switch(type)

              {

              case 0:

                     temp = bs.FactDictoryList.GetAt(bs.FactDictoryList.FindIndex(i)).FactCF;

                     break;

              case 1:

                     temp = bs.FactDictoryList.GetAt(bs.FactDictoryList.FindIndex(i)).cfimportance;

                     break;

              case 2:

                     temp =bs.FactDictoryList.GetAt(bs.FactDictoryList.FindIndex(i)).structimportance;

                     break;

              case 3:

                     temp = bs.FactDictoryList.GetAt(bs.FactDictoryList.FindIndex(i)).edgeimportance;

                     break;

              default:

                     break;

              }

              if (max < temp)

                     max = temp;

              if (min > temp)

                     min = temp;

       }*/

       m_Chart.GetPlot().GetAxis(1,var).GetValueScale().SetMaximum(10);      // Y轴最大刻度

       m_Chart.GetPlot().GetAxis(1,var).GetValueScale().SetMinimum(0);         // Y轴最小刻度

            

       double c;

       for(int row = 1; row <= nRowCount; ++row)

       {

              m_Chart.SetRow(row);

              sprintf(buf, "%d", row);

              m_Chart.SetRowLabel((LPCTSTR)buf);

      

              switch(type)

              {

              case 0:

                   c =bs.FactDictoryList.GetAt(bs.FactDictoryList.FindIndex(row-1)).FactCF;

                  m_Chart.GetPlot().GetSeriesCollection().GetItem(1).GetPen().GetVtColor().Set(0, 0, 255);

               // Y轴名称

                     m_Chart.GetPlot().GetAxis(1,var).GetAxisTitle().SetText("基本事件概率(-lg)");

                     break;

              case 1:

                     c = bs.FactDictoryList.GetAt(bs.FactDictoryList.FindIndex(row-1)).cfimportance;

                     m_Chart.GetPlot().GetSeriesCollection().GetItem(1).GetPen().GetVtColor().Set(255, 0, 0);               // Y轴名称    

                    m_Chart.GetPlot().GetAxis(1,var).GetAxisTitle().SetText("概率重要度(-lg)");

                     break;

              case 2:

                  c = bs.FactDictoryList.GetAt(bs.FactDictoryList.FindIndex(row-1)).structimportance;

                  m_Chart.GetPlot().GetSeriesCollection().GetItem(1).GetPen().GetVtColor().Set(0, 255, 0);      

//Y轴名称

                     m_Chart.GetPlot().GetAxis(1,var).GetAxisTitle().SetText("结构重要度");

                     break;

              case 3:

                     c = bs.FactDictoryList.GetAt(bs.FactDictoryList.FindIndex(row-1)).edgeimportance;

                 m_Chart.GetPlot().GetSeriesCollection().GetItem(1).GetPen().GetVtColor().Set(255, 0, 255);

                     // Y轴名称

       m_Chart.GetPlot().GetAxis(1,var).GetAxisTitle().SetText("临界重要度(-lg)");

                     break;

              default:

                     break;

              }    

              m_Chart.GetDataGrid().SetData(row, 1, -log10(c), 0);

    }

       m_Chart.Refresh();     

}

1.1.2.3             添加ON_SIZE消息响应函数

void CDrawImp::OnSize(UINT nType, int cx, int cy)

{

       CDialog::OnSize(nType, cx, cy);

       if( m_Chart.GetSafeHwnd() )

              m_Chart.MoveWindow( 0, 0, cx, cy );    

}

1.1.2.4             CDrawImp的OnInitDialog函数种创建MSChart

BOOL CDrawImp::OnInitDialog()

{

       CDialog::OnInitDialog();

 

    m_radio = 0;

       m_combo.SetCurSel(0);

       UpdateData(FALSE);

      

       CRect rc;

       GetClientRect(&rc);

       rc.top += 80;

       rc.bottom -= 15;

       rc.left += 15;

       rc.right -= 15;

       m_Chart.Create("mschart", WS_CHILD| WS_VISIBLE, rc, this, 10);

       initmschart();

       DrawChart(0);

 

       CString s;

       s.Format("顶事件发生概率为: %f",topcf);

       GetDlgItem(IDC_TOPCFSTATIC)->SetWindowText(s);

 

       return TRUE;  // return TRUE unless you set the focus to a control

                    // EXCEPTION: OCX Property Pages should return FALSE

}