请教，用OWC生成曲线图。怎么生成多根曲线图？

yangzixp 2004-12-05 01:00:29

一根测试OK。不会显示多根。请教

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lizhyifeng 2005-02-01

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kingkoo 2004-12-08

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上面的代码不还是一条的？？

yangzixp 2004-12-06

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private void bindCurveDisplay(string strMarket,string strSort,string strFactory,string strTypes,
string strPly,DateTime strBDate,DateTime strEDate, DataSet dsSource, string strPageInfo)
{
string cats=null,values=null;

foreach(DataRow dr in dsSource.Tables[0].Rows)
{
cats += dr["necc_date"] + "\t";
values += dr["necc_price"].ToString() + "\t";
}

OWC10.ChartSpace cs=new ChartSpaceClass();
OWC10.ChChart chart=cs.Charts.Add(0);
chart.Type=OWC10.ChartChartTypeEnum.chChartTypeSmoothLineMarkers;

chart.PlotArea.Interior.SetTwoColorGradient(OWC10.ChartGradientStyleEnum.chGradientDiagonalDown,OWC10.ChartGradientVariantEnum.chGradientVariantEnd,"LightSkyBlue", "white");

chart.HasLegend=false;

chart.HasTitle=true;
string strTitle = strMarket + "/" + strSort + "/" + strFactory + "/" + strTypes + "/" + strPly + "/" + "价格走势图("
+ strBDate.ToString("yyyy.MM.dd") + "～" + strEDate.ToString("yyyy.MM.dd") + ")";
if (strPageInfo!=string.Empty)
strTitle += strPageInfo;

chart.Title.Caption = strTitle;
chart.Title.Position = OWC10.ChartTitlePositionEnum.chTitlePositionAutomatic;

chart.Axes[0].HasTitle=true;
chart.Axes[0].Title.Caption="时间(www.myweb.com)";

chart.Axes[1].HasTitle=true;
chart.Axes[1].Title.Caption="价格(元)";

chart.SeriesCollection.Add(0);
chart.SeriesCollection[0].SetData(OWC10.ChartDimensionsEnum.chDimSeriesNames,Convert.ToInt32(OWC10.ChartSpecialDataSourcesEnum.chDataLiteral),"304BA");
chart.SeriesCollection[0].SetData(OWC10.ChartDimensionsEnum.chDimCategories,Convert.ToInt32(OWC10.ChartSpecialDataSourcesEnum.chDataLiteral),cats);
chart.SeriesCollection[0].SetData(OWC10.ChartDimensionsEnum.chDimValues,Convert.ToInt32(OWC10.ChartSpecialDataSourcesEnum.chDataLiteral),values);

chart.SeriesCollection[0].DataLabelsCollection.Add();
chart.SeriesCollection[0].DataLabelsCollection[0].HasValue=true;

string strfile=Server.MapPath("/Information/Curve/ImgLine/CurveLine.gif");
cs.ExportPicture(strfile,"gif",780,300);

//生成版权信息
// string strfile2=Server.MapPath(".")+"/chart2.jpg";
// System.Drawing.Image originalimage = System.Drawing.Image.FromFile(strfile);
// System.Drawing.Brush objbrush = new SolidBrush(ColorTranslator.FromHtml("#000000"));
// using (Graphics g2 = Graphics.FromImage(originalimage))
// {
// g2.DrawString("www.51bxg.com Copy Rights" , new System.Drawing.Font("Verdana", 10), objbrush, originalimage.Width/2-150, originalimage.Height/2-10);
// g2.Save();
// g2.Dispose();
// }
// originalimage.Save(strfile2, System.Drawing.Imaging.ImageFormat.Jpeg);
// originalimage.Dispose();
// File.Delete(strfile);

imgCurve.ImageUrl = "/Information/Curve/ImgLine/CurveLine.gif" + "?Temp=" + Guid.NewGuid().ToString();
}

hemudu 2004-12-05