const int NUM_OF_ROWS = 3;
const int NUM_OF_COLUMNS = 10;
public static void CreateExcel()
{
IWorkbook wb = new XSSFWorkbook();
ISheet sheet = wb.CreateSheet("linechart");
// Create a row and put some cells in it. Rows are 0 based.
IRow row;
ICell cell;
for (int rowIndex = 0; rowIndex < NUM_OF_ROWS; rowIndex++)
{
row = sheet.CreateRow((short)rowIndex);
for (int colIndex = 0; colIndex < NUM_OF_COLUMNS; colIndex++)
{
cell = row.CreateCell((short)colIndex);
cell.SetCellValue(colIndex * (rowIndex + 1));
}
}
IDrawing drawing = sheet.CreateDrawingPatriarch();
//图表的位置锚点
//dx1：起始单元格的x偏移量；
//dy1：起始单元格的y偏移量；
//dx2：终止单元格的x偏移量；
//dy2：终止单元格的y偏移量；
//col1：起始单元格列序号；
//row1：起始单元格行序号；
//col2：终止单元格列序号；
//row2：终止单元格行序号；
IClientAnchor anchor1 = drawing.CreateAnchor(0, 0, 0, 0, 0, 5, 10, 15);
CreateChart(drawing, sheet, anchor1, "title1", "title2");
//图表的位置锚点
//dx1：起始单元格的x偏移量；
//dy1：起始单元格的y偏移量；
//dx2：终止单元格的x偏移量；
//dy2：终止单元格的y偏移量；
//col1：起始单元格列序号；
//row1：起始单元格行序号；
//col2：终止单元格列序号；
//row2：终止单元格行序号；
IClientAnchor anchor2 = drawing.CreateAnchor(0, 0, 0, 0, 0, 20, 10, 35);
CreateChart(drawing, sheet, anchor2, "s1", "s2");
using (FileStream fs = File.Create("test5.xlsx"))
{
wb.Write(fs);
}
}
//serie1 图表统计项标题 serie2 图表统计项标题
static void CreateChart(IDrawing drawing, ISheet sheet, IClientAnchor anchor, string serie1, string serie2)
{
IChart chart = drawing.CreateChart(anchor);
IChartLegend legend = chart.GetOrCreateLegend();
//标题位置
legend.Position = LegendPosition.Top;
IBarChartData<double, double> data = chart.ChartDataFactory.CreateBarChartData<double, double>();
// Use a category axis for the bottom axis.
//横坐标
IChartAxis bottomAxis = chart.ChartAxisFactory.CreateCategoryAxis(AxisPosition.Bottom);
//纵坐标
IValueAxis leftAxis = chart.ChartAxisFactory.CreateValueAxis(AxisPosition.Left);
leftAxis.Crosses = AxisCrosses.AutoZero;//AxisCrosses.Max 则纵坐标在右侧
//X 轴名称
IChartDataSource<double> xs = DataSources.FromNumericCellRange(sheet, new CellRangeAddress(0, 0, 0,NUM_OF_COLUMNS - 1));
//第一个统计项的数据源
IChartDataSource<double> ys1 = DataSources.FromNumericCellRange(sheet, new CellRangeAddress(1, 1, 0,NUM_OF_COLUMNS - 1));
//第二个统计项的数据源
IChartDataSource<double> ys2 = DataSources.FromNumericCellRange(sheet, new CellRangeAddress(2, 2, 0,NUM_OF_COLUMNS - 1));
//添加标题
//给图表添加第一个统计项
var s1 = data.AddSeries(xs, ys1);
//添加第一个统计项的标题
s1.SetTitle(serie1);
var s2 = data.AddSeries(xs, ys2);
s2.SetTitle(serie2);
chart.Plot(data, bottomAxis, leftAxis);
}