翻译|使用教程|编辑:李显亮|2021-02-03 10:28:16.917|阅读 529 次
概述:图表用于汇总和直观表示PowerPoint演示文稿中的数据。因此,PowerPoint提供了多种图表类型以可视化数据。在本文中,将学习如何使用C#在PowerPoint演示文稿中创建这些流行的图表类型。
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图表用于汇总和直观表示PowerPoint演示文稿中的数据。因此,PowerPoint提供了多种图表类型以可视化数据。其中,最常用的图表类型包括饼图,折线图,条形图,直方图,股票图等。在本文中,将学习如何使用C#在PowerPoint演示文稿中创建这些流行的图表类型。
Aspose.Slides for .NET是一个C#类库,可让您从.NET应用程序中创建和处理PowerPoint演示文稿。此外,API允许您无缝创建图表并将其添加到演示文稿中。
>>你可以点击这里下载Aspose.Slides v21.1测试体验。
在本节中,将学习如何创建柱形图以及如何添加类别和系列以填充该图。以下是执行此操作的步骤。
为了演示,下面的代码示例演示如何使用C#在PowerPoint演示文稿中创建柱形图。
// Instantiate Presentation class that represents PPTX file
Presentation pres = new Presentation();
// Access first slide
ISlide sld = pres.Slides[0];
// Add chart with default data
IChart chart = sld.Shapes.AddChart(ChartType.ClusteredColumn, 0, 0, 500, 500);
// Setting chart Title
chart.ChartTitle.AddTextFrameForOverriding("Sample Title");
chart.ChartTitle.TextFrameForOverriding.TextFrameFormat.CenterText = NullableBool.True;
chart.ChartTitle.Height = 20;
chart.HasTitle = true;
// Set first series to Show Values
chart.ChartData.Series[0].Labels.DefaultDataLabelFormat.ShowValue = true;
// Setting the index of chart data sheet
int defaultWorksheetIndex = 0;
// Getting the chart data worksheet
IChartDataWorkbook fact = chart.ChartData.ChartDataWorkbook;
// Delete default generated series and categories
chart.ChartData.Series.Clear();
chart.ChartData.Categories.Clear();
int s = chart.ChartData.Series.Count;
s = chart.ChartData.Categories.Count;
// Adding new series
chart.ChartData.Series.Add(fact.GetCell(defaultWorksheetIndex, 0, 1, "Series 1"), chart.Type);
chart.ChartData.Series.Add(fact.GetCell(defaultWorksheetIndex, 0, 2, "Series 2"), chart.Type);
// Adding new categories
chart.ChartData.Categories.Add(fact.GetCell(defaultWorksheetIndex, 1, 0, "Caetegoty 1"));
chart.ChartData.Categories.Add(fact.GetCell(defaultWorksheetIndex, 2, 0, "Caetegoty 2"));
chart.ChartData.Categories.Add(fact.GetCell(defaultWorksheetIndex, 3, 0, "Caetegoty 3"));
// Take first chart series
IChartSeries series = chart.ChartData.Series[0];
// Now populating series data
series.DataPoints.AddDataPointForBarSeries(fact.GetCell(defaultWorksheetIndex, 1, 1, 20));
series.DataPoints.AddDataPointForBarSeries(fact.GetCell(defaultWorksheetIndex, 2, 1, 50));
series.DataPoints.AddDataPointForBarSeries(fact.GetCell(defaultWorksheetIndex, 3, 1, 30));
// Setting fill color for series
series.Format.Fill.FillType = FillType.Solid;
series.Format.Fill.SolidFillColor.Color = System.Drawing.Color.Blue;
// Take second chart series
series = chart.ChartData.Series[1];
// Now populating series data
series.DataPoints.AddDataPointForBarSeries(fact.GetCell(defaultWorksheetIndex, 1, 2, 30));
series.DataPoints.AddDataPointForBarSeries(fact.GetCell(defaultWorksheetIndex, 2, 2, 10));
series.DataPoints.AddDataPointForBarSeries(fact.GetCell(defaultWorksheetIndex, 3, 2, 60));
// Setting fill color for series
series.Format.Fill.FillType = FillType.Solid;
series.Format.Fill.SolidFillColor.Color = Color.Orange;
// First label will be show Category name
IDataLabel lbl = series.DataPoints[0].Label;
lbl.DataLabelFormat.ShowCategoryName = true;
lbl = series.DataPoints[1].Label;
lbl.DataLabelFormat.ShowSeriesName = true;
// Show value for third label
lbl = series.DataPoints[2].Label;
lbl.DataLabelFormat.ShowValue = true;
lbl.DataLabelFormat.ShowSeriesName = true;
lbl.DataLabelFormat.Separator = "/";
// Save presentation with chart
pres.Save("column-chart.pptx", SaveFormat.Pptx);
以下是结果柱形图的屏幕截图。
以下是使用C#在PowerPoint演示文稿中创建分散图表的步骤。
下面的代码示例演示如何使用C#在PowerPoint演示文稿中创建分散的图表。
// Instantiate Presentation class that represents PPTX file
Presentation pres = new Presentation();
// Access first slide
ISlide sld = pres.Slides[0];
// Add chart with default data
IChart chart = sld.Shapes.AddChart(ChartType.ScatterWithSmoothLines, 0, 0, 400, 400);
// Getting the default chart data worksheet index
int defaultWorksheetIndex = 0;
// Getting the chart data worksheet
IChartDataWorkbook fact = chart.ChartData.ChartDataWorkbook;
// Delete demo series
chart.ChartData.Series.Clear();
// Add new series
chart.ChartData.Series.Add(fact.GetCell(defaultWorksheetIndex, 1, 1, "Series 1"), chart.Type);
chart.ChartData.Series.Add(fact.GetCell(defaultWorksheetIndex, 1, 3, "Series 2"), chart.Type);
// Take first chart series
IChartSeries series = chart.ChartData.Series[0];
// Add new point (1:3) there.
series.DataPoints.AddDataPointForScatterSeries(fact.GetCell(defaultWorksheetIndex, 2, 1, 1), fact.GetCell(defaultWorksheetIndex, 2, 2, 3));
// Add new point (2:10)
series.DataPoints.AddDataPointForScatterSeries(fact.GetCell(defaultWorksheetIndex, 3, 1, 2), fact.GetCell(defaultWorksheetIndex, 3, 2, 10));
// Edit the type of series
series.Type = ChartType.ScatterWithStraightLinesAndMarkers;
// Changing the chart series marker
series.Marker.Size = 10;
series.Marker.Symbol = MarkerStyleType.Star;
// Take second chart series
series = chart.ChartData.Series[1];
// Add new point (5:2) there.
series.DataPoints.AddDataPointForScatterSeries(fact.GetCell(defaultWorksheetIndex, 2, 3, 5), fact.GetCell(defaultWorksheetIndex, 2, 4, 2));
// Add new point (3:1)
series.DataPoints.AddDataPointForScatterSeries(fact.GetCell(defaultWorksheetIndex, 3, 3, 3), fact.GetCell(defaultWorksheetIndex, 3, 4, 1));
// Add new point (2:2)
series.DataPoints.AddDataPointForScatterSeries(fact.GetCell(defaultWorksheetIndex, 4, 3, 2), fact.GetCell(defaultWorksheetIndex, 4, 4, 2));
// Add new point (5:1)
series.DataPoints.AddDataPointForScatterSeries(fact.GetCell(defaultWorksheetIndex, 5, 3, 5), fact.GetCell(defaultWorksheetIndex, 5, 4, 1));
// Changing the chart series marker
series.Marker.Size = 10;
series.Marker.Symbol = MarkerStyleType.Circle;
// Save presentation with chart
pres.Save("scattered-chart.pptx", SaveFormat.Pptx);
以下屏幕截图显示了生成的分散图表。
以下是使用C#在PowerPoint演示文稿中创建饼图的步骤。
下面的代码示例演示如何使用C#在PowerPoint演示文稿中创建饼图。
// Instantiate Presentation class that represents PPTX file
Presentation presentation = new Presentation();
// Access first slide
ISlide slides = presentation.Slides[0];
// Add chart with default data
IChart chart = slides.Shapes.AddChart(ChartType.Pie, 100, 100, 400, 400);
// Setting chart Title
chart.ChartTitle.AddTextFrameForOverriding("Sample Title");
chart.ChartTitle.TextFrameForOverriding.TextFrameFormat.CenterText = NullableBool.True;
chart.ChartTitle.Height = 20;
chart.HasTitle = true;
// Set first series to Show Values
chart.ChartData.Series[0].Labels.DefaultDataLabelFormat.ShowValue = true;
// Setting the index of chart data sheet
int defaultWorksheetIndex = 0;
// Getting the chart data worksheet
IChartDataWorkbook fact = chart.ChartData.ChartDataWorkbook;
// Delete default generated series and categories
chart.ChartData.Series.Clear();
chart.ChartData.Categories.Clear();
// Adding new categories
chart.ChartData.Categories.Add(fact.GetCell(0, 1, 0, "First Qtr"));
chart.ChartData.Categories.Add(fact.GetCell(0, 2, 0, "2nd Qtr"));
chart.ChartData.Categories.Add(fact.GetCell(0, 3, 0, "3rd Qtr"));
// Adding new series
IChartSeries series = chart.ChartData.Series.Add(fact.GetCell(0, 0, 1, "Series 1"), chart.Type);
// Now populating series data
series.DataPoints.AddDataPointForPieSeries(fact.GetCell(defaultWorksheetIndex, 1, 1, 20));
series.DataPoints.AddDataPointForPieSeries(fact.GetCell(defaultWorksheetIndex, 2, 1, 50));
series.DataPoints.AddDataPointForPieSeries(fact.GetCell(defaultWorksheetIndex, 3, 1, 30));
// Not working in new version
// Adding new points and setting sector color
// series.IsColorVaried = true;
chart.ChartData.SeriesGroups[0].IsColorVaried = true;
IChartDataPoint point = series.DataPoints[0];
point.Format.Fill.FillType = FillType.Solid;
point.Format.Fill.SolidFillColor.Color = Color.Orange;
// Setting Sector border
point.Format.Line.FillFormat.FillType = FillType.Solid;
point.Format.Line.FillFormat.SolidFillColor.Color = Color.Gray;
point.Format.Line.Width = 3.0;
//point.Format.Line.Style = LineStyle.ThinThick;
//point.Format.Line.DashStyle = LineDashStyle.DashDot;
IChartDataPoint point1 = series.DataPoints[1];
point1.Format.Fill.FillType = FillType.Solid;
point1.Format.Fill.SolidFillColor.Color = Color.BlueViolet;
// Setting Sector border
point1.Format.Line.FillFormat.FillType = FillType.Solid;
point1.Format.Line.FillFormat.SolidFillColor.Color = Color.Blue;
point1.Format.Line.Width = 3.0;
//point1.Format.Line.Style = LineStyle.Single;
//point1.Format.Line.DashStyle = LineDashStyle.LargeDashDot;
IChartDataPoint point2 = series.DataPoints[2];
point2.Format.Fill.FillType = FillType.Solid;
point2.Format.Fill.SolidFillColor.Color = Color.YellowGreen;
// Setting Sector border
point2.Format.Line.FillFormat.FillType = FillType.Solid;
point2.Format.Line.FillFormat.SolidFillColor.Color = Color.Red;
point2.Format.Line.Width = 2.0;
//point2.Format.Line.Style = LineStyle.ThinThin;
//point2.Format.Line.DashStyle = LineDashStyle.LargeDashDotDot;
// Create custom labels for each of categories for new series
IDataLabel lbl1 = series.DataPoints[0].Label;
// lbl.ShowCategoryName = true;
lbl1.DataLabelFormat.ShowValue = true;
IDataLabel lbl2 = series.DataPoints[1].Label;
lbl2.DataLabelFormat.ShowValue = true;
lbl2.DataLabelFormat.ShowLegendKey = true;
lbl2.DataLabelFormat.ShowPercentage = true;
IDataLabel lbl3 = series.DataPoints[2].Label;
lbl3.DataLabelFormat.ShowSeriesName = true;
lbl3.DataLabelFormat.ShowPercentage = true;
// Showing Leader Lines for Chart
//series.Labels.DefaultDataLabelFormat.ShowLeaderLines = true;
// Setting Rotation Angle for Pie Chart Sectors
chart.ChartData.SeriesGroups[0].FirstSliceAngle = 180;
// Save presentation with chart
presentation.Save("pie-chart.pptx", SaveFormat.Pptx);
以下是生成的饼图的屏幕截图。
以下是使用Aspose.Slides for .NET在PowerPoint演示文稿中创建直方图的步骤。
下面的代码示例演示如何使用C#创建直方图。
// Load or create presentation
using (Presentation pres = new Presentation())
{
// Add histogram chart
IChart chart = pres.Slides[0].Shapes.AddChart(ChartType.Histogram, 50, 50, 500, 400);
chart.ChartData.Categories.Clear();
chart.ChartData.Series.Clear();
// Access chart data workbook
IChartDataWorkbook wb = chart.ChartData.ChartDataWorkbook;
// Clear workbook
wb.Clear(0);
// Add chart series
IChartSeries series = chart.ChartData.Series.Add(ChartType.Histogram);
series.DataPoints.AddDataPointForHistogramSeries(wb.GetCell(0, "A1", 15));
series.DataPoints.AddDataPointForHistogramSeries(wb.GetCell(0, "A2", -41));
series.DataPoints.AddDataPointForHistogramSeries(wb.GetCell(0, "A3", 16));
series.DataPoints.AddDataPointForHistogramSeries(wb.GetCell(0, "A4", 10));
series.DataPoints.AddDataPointForHistogramSeries(wb.GetCell(0, "A5", -23));
series.DataPoints.AddDataPointForHistogramSeries(wb.GetCell(0, "A6", 16));
chart.Axes.HorizontalAxis.AggregationType = AxisAggregationType.Automatic;
// Save presentation
pres.Save("histogram-chart.pptx", SaveFormat.Pptx);
}
以下是创建的直方图的屏幕截图。
股票图表也是PowerPoint演示文稿中常用的图表类型之一。以下是创建股票图表的步骤。
下面的代码示例演示如何使用C#将股票图表添加到PowerPoint演示文稿中。
// Load or create presentation
using (Presentation pres = new Presentation())
{
// Add chart
IChart chart = pres.Slides[0].Shapes.AddChart(ChartType.OpenHighLowClose, 50, 50, 600, 400, false);
// Clear categories and series
chart.ChartData.Series.Clear();
chart.ChartData.Categories.Clear();
// Access chart data workbook
IChartDataWorkbook wb = chart.ChartData.ChartDataWorkbook;
// Add categories
chart.ChartData.Categories.Add(wb.GetCell(0, 1, 0, "A"));
chart.ChartData.Categories.Add(wb.GetCell(0, 2, 0, "B"));
chart.ChartData.Categories.Add(wb.GetCell(0, 3, 0, "C"));
// Add series
chart.ChartData.Series.Add(wb.GetCell(0, 0, 1, "Open"), chart.Type);
chart.ChartData.Series.Add(wb.GetCell(0, 0, 2, "High"), chart.Type);
chart.ChartData.Series.Add(wb.GetCell(0, 0, 3, "Low"), chart.Type);
chart.ChartData.Series.Add(wb.GetCell(0, 0, 4, "Close"), chart.Type);
// Add data points
IChartSeries series = chart.ChartData.Series[0];
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 1, 1, 72));
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 2, 1, 25));
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 3, 1, 38));
series = chart.ChartData.Series[1];
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 1, 2, 172));
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 2, 2, 57));
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 3, 2, 57));
series = chart.ChartData.Series[2];
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 1, 3, 12));
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 2, 3, 12));
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 3, 3, 13));
series = chart.ChartData.Series[3];
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 1, 4, 25));
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 2, 4, 38));
series.DataPoints.AddDataPointForStockSeries(wb.GetCell(0, 3, 4, 50));
// Set whether chart has up/down bars
chart.ChartData.SeriesGroups[0].UpDownBars.HasUpDownBars = true;
// Specify hi/low line format
chart.ChartData.SeriesGroups[0].HiLowLinesFormat.Line.FillFormat.FillType = FillType.Solid;
foreach (IChartSeries ser in chart.ChartData.Series)
{
ser.Format.Line.FillFormat.FillType = FillType.NoFill;
}
// Save presentation
pres.Save("stock-chart.pptx", SaveFormat.Pptx);
}
以下是创建的股票图表的屏幕截图。
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