Aspose.Words for .NET图表教程——关于使用图表数据
Aspose.Words For .Net是一种高级Word文档处理API,用于执行各种文档管理和操作任务。API支持生成,修改,转换,呈现和打印文档,而无需在跨平台应用程序中直接使用Microsoft Word。此外,API支持所有流行的Word处理文件格式,并允许将Word文档导出或转换为固定布局文件格式和最常用的图像/多媒体格式。
接下来我们将进入关于“使用图表”的介绍,在Aspose.Words中学会关于ChartSeries类的相关,包括使用单个ChartSeries类、使用ChartSeries的单个图表数据点、使用单个ChartSeries的图表数据标签。
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使用单个ChartSeries类
以下是处理特定系列的方法。
// Get first series. ChartSeries series0 = shape.Chart.Series[0]; // Get second series. ChartSeries series1 = shape.Chart.Series[1]; // Change first series name. series0.Name = "My Name1"; // Change second series name. series1.Name = "My Name2"; // You can also specify whether the line connecting the points on the chart shall be smoothed using Catmull-Rom splines. series0.Smooth = true; series1.Smooth = true;
请查看结果如下:
所有单个ChartSeries都有默认的ChartDataPoint选项,请尝试使用以下代码进行更改:
// Specifies whether by default the parent element shall inverts its colors if the value is negative. series0.InvertIfNegative = true; // Set default marker symbol and size. series0.Marker.Symbol = MarkerSymbol.Circle; series0.Marker.Size = 15; series1.Marker.Symbol = MarkerSymbol.Star; series1.Marker.Size = 10;
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如何使用ChartSeries的单个ChartDataPoint
使用ChartDataPoint,可以自定义图表系列的单个数据点的格式。
// The path to the documents directory. string dataDir = RunExamples.GetDataDir_WorkingWithCharts(); Document doc = new Document(); DocumentBuilder builder = new DocumentBuilder(doc); Shape shape = builder.InsertChart(ChartType.Line, 432, 252); Chart chart = shape.Chart; // Get first series. ChartSeries series0 = shape.Chart.Series[0]; // Get second series. ChartSeries series1 = shape.Chart.Series[1]; ChartDataPointCollection dataPointCollection = series0.DataPoints; // Add data point to the first and second point of the first series. ChartDataPoint dataPoint00 = dataPointCollection.Add(0); ChartDataPoint dataPoint01 = dataPointCollection.Add(1); // Set explosion. dataPoint00.Explosion = 50; // Set marker symbol and size. dataPoint00.Marker.Symbol = MarkerSymbol.Circle; dataPoint00.Marker.Size = 15; dataPoint01.Marker.Symbol = MarkerSymbol.Diamond; dataPoint01.Marker.Size = 20; // Add data point to the third point of the second series. ChartDataPoint dataPoint12 = series1.DataPoints.Add(2); dataPoint12.InvertIfNegative = true; dataPoint12.Marker.Symbol = MarkerSymbol.Star; dataPoint12.Marker.Size = 20; dataDir = dataDir + @"SingleChartDataPoint_out.docx"; doc.Save(dataDir);
请查看结果如下:
如何使用单个ChartSeries的ChartDataLabel
使用ChartDataLabel,您可以指定图表系列的单个数据标签的格式,例如显示/隐藏LegendKey,CategoryName,SeriesName,Value等。
Document doc = new Document(); DocumentBuilder builder = new DocumentBuilder(doc); Shape shape = builder.InsertChart(ChartType.Bar, 432, 252); Chart chart = shape.Chart; // Get first series. ChartSeries series0 = shape.Chart.Series[0]; ChartDataLabelCollection dataLabelCollection = series0.DataLabels; // Add data label to the first and second point of the first series. ChartDataLabel chartDataLabel00 = dataLabelCollection.Add(0); ChartDataLabel chartDataLabel01 = dataLabelCollection.Add(1); // Set properties. chartDataLabel00.ShowLegendKey = true; // By default, when you add data labels to the data points in a pie chart, leader lines are displayed for data labels that are // Positioned far outside the end of data points. Leader lines create a visual connection between a data label and its // Corresponding data point. chartDataLabel00.ShowLeaderLines = true; chartDataLabel00.ShowCategoryName = false; chartDataLabel00.ShowPercentage = false; chartDataLabel00.ShowSeriesName = true; chartDataLabel00.ShowValue = true; chartDataLabel00.Separator = "/"; chartDataLabel01.ShowValue = true; dataDir = dataDir + @"SimpleBarChart_out.docx"; doc.Save(dataDir);
请查看结果如下: