Delphi 生成excel中的饼图

生成excel中的饼图

var

i,j,m,n,count1:integer;

str:string;

Jdate:tdatetime;

channellist,potBstrtime,potEstrtime,Jchannelname:string;

Rres:boolean;

JSHR:double;

Excelid,achart1,cell1,cell2,cell3,cell4,cellMiddle,Range1,Range2,series1:variant;

ExRowsValue,ExRowsName,ExClos:Integer;

ImagePage,dataPage:integer;

leftPostion,topPostion,widthPostion,heightPostion:integer;

begin

//创建OLE对象

try

Excelid:=CreateOleObject( 'Excel.Application' );

except

on Exception do raise exception.Create('无法创建Xls文件，请确认是否安装EXCEL')

end;

Excelid.Visible := false; //Excel显示设置

Excelid.WorkBooks.Add;  //生成新的excel文件

//不用excel以前的页

Excelid.worksheets.add;

dataPage:=Excelid.Worksheets.count;   //用作数据页

Excelid.worksheets.add;

ImagePage:=Excelid.Worksheets.count;

//showmessage(inttostr(dataPage));

//showmessage(inttostr(ImagePage)+'sdfg');

Jdate:=DateTimePicker1.Date;

count1:=0;

ExRowsValue:=1; //存储值

ExRowsName:=2;  //存储名称

//取得频率编号

for i:=0 to CheckListBoxFQ.Items.Count-1 do

begin

if CheckListBoxFQ.Checked[i] then

begin

channellist:= QCaky.FChannelList[i]+','+channellist;

end;

end;

delete(channellist,length(channellist),1);

leftPostion:=20;

topPostion:=50;

widthPostion:=450;

heightPostion:=230;

for i:=0 to CheckListBoxPOTT.Items.Count-1 do

begin

if CheckListBoxPOTT.Checked[i] then

begin

//动态生成excel页数

//Excelid.worksheets.add;

//sheetCount:=sheetCount+1;

//Excelid.worksheets[sheetCount].name:='图表页'+inttostr(sheetCount);

//在这里生成图表

if CheckListBoxPOTT.Items[i]='全天' then

begin

potBstrtime:='';

potEstrtime:='';

end

else

begin

potBstrtime:=QCaky.FPOTbeginList[i];

potEstrtime:=QCaky.FPOTendList[i];

end;

Rres:=QCaky.getFQShr(Jdate,FormMain.QAreacode,channellist,potBstrtime,potEstrtime);  //取得占有率

ExClos:=1;

while not QCaky.FADOQueryFQ.Eof do

begin

Excelid.worksheets[dataPage].Activate;

Jchannelname:=QCaky.FADOQueryFQ.fieldbyname('channelname').AsString;

JSHR:=QCaky.FADOQueryFQ.fieldbyname('allshr').AsFloat;

Excelid.worksheets[dataPage].Cells[ExRowsName,ExClos].Value :=Jchannelname;

Excelid.worksheets[dataPage].Cells[ExRowsValue,ExClos].Value :=JSHR;

inc(ExClos);

QCaky.FADOQueryFQ.Next;

end;

{添加一个二维图(20,50,450,230)表示（左,顶,宽,高）}

//achart1 := Excelid.worksheets[ImagePage].chartobjects.add(20,50,450,230);

achart1 := Excelid.worksheets[ImagePage].chartobjects.add(leftPostion,topPostion,widthPostion,heightPostion);

achart1.chart.charttype := xl3DPie ;  //生成何种类型的图********在此生成的是饼图

//设置x轴、y轴数据

cell1 :=  Excelid.worksheets[dataPage].Cells[ExRowsName,1];

cell2 :=  Excelid.worksheets[dataPage].Cells[ExRowsName,ExClos];

cell3 :=  Excelid.worksheets[dataPage].Cells[ExRowsValue,1];

cell4 :=  Excelid.worksheets[dataPage].Cells[ExRowsValue,ExClos];

Range1 := Excelid.worksheets[dataPage].Range[cell1, cell2]; //设定Chart类别坐标轴（x轴）的取值区域

Range2 := Excelid.worksheets[dataPage].Range[cell3, cell4]; //设定Chart数值坐标轴（y轴）的取值区域

series1:= achart1.chart.seriescollection ;

//series1.add (Range2,xlColumns,false);  //设置y轴的数据

series1.add (Range2,true);          //可以使用，能够生成饼图

achart1.chart.seriescollection[1].name:='nihao';

//设置饼图的形式

achart1.chart.seriescollection[1].ApplyDataLabels(xlDataLabelsShowLabelAndPercent,true,true,true);

achart1.Chart.Axes[xlCategory].CategoryNames := Range1;  //设置x轴数据

//series1.add (Range2,xlColumns,false);  //设置y轴的数据

//achart1.Chart.Axes[xlCategory].CategoryNames := Range1;  //设置x轴数据

//删除右侧的标题

achart1.Chart.Legend.delete;

//添加图表标题

achart1.Chart.HasTitle:=True;

achart1.Chart.ChartTitle.Characters.Text:='收视率走势图';

achart1.Chart.HasLegend:=true;

achart1.Chart.Legend.Position := xlBottom;

//图表左标说明

//achart1.Chart.Axes(xlValue,xlPrimary).HasTitle := True;

//achart1.Chart.Axes(xlValue,xlPrimary).AxisTitle.Characters.Text := '收视率（%）';

//图表下标说明

//achart1.Chart.Axes(xlCategory,xlPrimary).HasTitle:=True;

//achart1.Chart.Axes(xlCategory,xlPrimary).AxisTitle.Characters.Text:='时间';

ExRowsName:=ExRowsName+2;

ExRowsValue:=ExRowsValue+2;

end;  //如果时段设置被选中

leftPostion:=20;

topPostion:=topPostion+600;

//showmessage(inttostr(dataPage));

end;

Excelid.Visible := true;

end;