一,拖控件,從控件組中拖出TChart控件.

二,雙擊TChart,按add添加所需數據組.

三,通過代碼對其屬性進行操作,修改.

四,錄入數據點,生成圖像.

以折線統計圖為例,以下記錄一些常用的接口及具體用法.

    double * data ;    int N=2048 ;                  //動態成生數據組。    data = new double[N] ;      //整個Y軸向量一次性添加。注意總點數為N-1。    Series1->Clear() ;    Series1->AddArray( data, N-1 ) ;       //逐個數添加于X軸，Y軸為點號。    Series1->Clear() ;    for( int ii=0; ii<N; ii++ )        Series1->AddX( ii/0.2, "", clBlue ) ;      //逐個數添加于Y軸，X軸為點號。    Series1->Clear() ;    for( int ii=0; ii<N; ii++ )        Series1->AddY( ii/0.2, "", clBlue ) ;

    // Line類型的Series是逐個數據進行添加。 待所有的數據加入以后，從左到右邊線，數據輸入不分先后。    // Horizontal Line類型的Series是按數據添加順序進行畫圖，逐點連線。

     Series1->Clear() ;    for( int ii=0; ii<N; ii++ )        {            data[ii] = sin( 2*3.14*0.05*ii/22.0+1.2 ) ;           Series1->AddXY( ii/0.5, data[ii], "", clRed ) ;        }

       for( int ii=0; ii<N; ii++ )          {             data[ii] = sin( 2*3.14*0.05*ii/40.0+1.0 ) ;             Series1->AddXY( ii/0.5, data[ii], "", clRed ) ;           }

    //線型 線號    Series1->Pen->Width = 2 ;     Series1->Pen->Style = PSDashDot ;        //OutLine->Visible = true 情況下有起作用。    //Series1->OutLine->Visible = true ;    Series1->LinePen->Color = clBlue ;    Series1->OutLine->Color = clBlue ;    Series1->Pen->Color = clBlue ;

    // 線顏色    Series1->SeriesColor = clGreen ;   

    //軸名稱，字體，顏色，字號。下劃線.    Series1->GetVertAxis->Title->Caption = "Y坐標軸" ;                          //GetVertAxis是Y軸    Series1->GetVertAxis->Title->Font->Color = clRed ;             

    Series1->GetHorizAxis->Title->Caption = "X坐標軸" ;                         //GetHorizAxis是X軸

    Series1->GetHorizAxis->Title->Font->Name = "華文行楷" ;     Series1->GetHorizAxis->Title->Font->Style=Series1->GetHorizAxis->Title->Font->Style<<fsUnderline ;//下劃線,fsBold為加粗

    Series1->GetHorizAxis->Title->Font->Size = 24 ;                                         Chart1->Title->Caption = "標題文字" ;    Chart1->Title->Font->Size = 36 ;    Chart1->Title->Font->Color = clGreen ;    Chart1->Title->Font->Style.Contains(fsUnderline) ;    Chart1->Title->Font->Name = "華文彩云" ;    Chart1->Title->Font->Name = "@華文彩云" ;                                              //@的作用是90度旋轉

    //對數或性線坐標軸。    Chart1->Series[0]->GetVertAxis->Logarithmic = false ;

    //坐標軸線型，線號，顏色。    Series1->GetHorizAxis->Axis->Style = psDash ;    Series1->GetHorizAxis->Axis->Width = 3 ;    Series1->GetHorizAxis->Axis->Color = clRed ;

    //定制坐標軸范圍。    //Series1->GetHorizAxis->SetMinMax( -N/3, N ) ;

    //每一段的線顏色不同    //Series1->ColorEachPoint = false ;    Series1->ColorEachLine = true ;

    //三維情況，線的深度    Series1->Depth = 50 ;

    // 畫線為階梯形 ,正反階梯形    Series1->Stairs = true ;    Series1->InvertedStairs = true ;

    // mark顯示    Series1->Marks->Visible = true ;

    //數據點突出顯示    Series1->Pointer->Visible = true ;    Series1->Pointer->Style = psCircle ;    Series1->Pointer->Color = clYellow ;    Series1->Pointer->Pen->Color = clYellow ;

    // 隱藏坐標軸，連同它的網格線    Series1->GetVertAxis->Visible  = false ;    Series1->GetHorizAxis->Visible = false ;

    //標簽角度    Series1->GetVertAxis->LabelsAngle = 0 ;    //標簽間的間距像素值    Series1->GetVertAxis->LabelsSeparation = 200 ;    Series1->GetHorizAxis->Labels =false;   //關閉標簽顯示 與網格是關聯的。

    //網格顯示開關    Series1->GetVertAxis->Grid->Visible  = false ;    Series1->GetHorizAxis->Grid->Visible = true ;    Series1->GetHorizAxis->Grid->Color   = clRed ;    Series1->GetHorizAxis->Grid->Width   = 1 ;    Series1->GetHorizAxis->Grid->Style   = psSolid ;

    //標簽字號,顏色    Series1->GetHorizAxis->LabelsFont->Size  = 6 ;    Series1->GetHorizAxis->LabelsFont->Color = clGray ;    Series1->GetHorizAxis->AxisValuesFormat  = "#0.0" ;    Series1->GetHorizAxis->LabelsAngle       = 45 ;    Series1->GetHorizAxis->AxisValuesFormat  = "0.0e-0" ;       Series1->GetVertAxis->LabelsExponent = false ; //

    // Tick (向坐標軸外)   TickInner   (向坐標軸內)    Series1->GetHorizAxis->TickLength    = 10 ;     Series1->GetHorizAxis->TickInnerLength = 20 ;    Series1->GetHorizAxis->TicksInner->Visible = false ;

    //坐標軸方向    Series1->GetHorizAxis->Inverted = true ;

    // 標簽間隔數值，正數，如果間隔過小，不足以顯示標簽，則自動采用更大的間隔。    Series1->GetHorizAxis->Increment = 500 ;

    // 細網格 與細Ticker相關    Series1->GetHorizAxis->MinorTickCount = 4 ;  

   //細Ticker數，則平分段數為N+1.    Series1->GetHorizAxis->MinorGrid->Visible = true ;

    // 細網格 默認顏色是背景色，需要改變才能顯示出來。    Series1->GetHorizAxis->MinorGrid->Color = clBlue ;    Series1->GetHorizAxis->MinorGrid->Style = psDot ;

    // 細Ticker    Series1->GetHorizAxis->MinorTicks->Visible = true ;    Series1->GetHorizAxis->MinorTickLength = 5 ;