チャートでのデータの書式設定
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前のトピックでは、グラフのデータ ソースを設定する方法を示すために既に多くの例を提供しましたが、このトピックでは、グラフに設定できるデータの種類についてさらに詳しく説明します。
チャートデータの設定
次のように、Aspose.Cells を使用してグラフを操作する際に扱うデータには、次の 2 種類があります。
チャートデータ
チャート データは、チャートを作成するためのデータ ソースとして使用するデータです。を呼び出して、セル範囲 (グラフ データを含む) を追加できます。シリーズコレクションオブジェクトの[追加](https://reference.aspose.com/cells/java/com.aspose.cells/seriescollection#add(java.lang.Object)) 方法。
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// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java | |
// The path to the documents directory. | |
String dataDir = Utils.getSharedDataDir(SettingChartsData.class) + "charts/"; | |
// Instantiating a Workbook object | |
Workbook workbook = new Workbook(); | |
WorksheetCollection worksheets = workbook.getWorksheets(); | |
// Obtaining the reference of the first worksheet | |
Worksheet worksheet = worksheets.get(0); | |
Cells cells = worksheet.getCells(); | |
// Adding a sample value to "A1" cell | |
cells.get("A1").setValue(50); | |
// Adding a sample value to "A2" cell | |
cells.get("A2").setValue(100); | |
// Adding a sample value to "A3" cell | |
cells.get("A3").setValue(150); | |
// Adding a sample value to "A4" cell | |
cells.get("A4").setValue(200); | |
// Adding a sample value to "B1" cell | |
cells.get("B1").setValue(60); | |
// Adding a sample value to "B2" cell | |
cells.get("B2").setValue(32); | |
// Adding a sample value to "B3" cell | |
cells.get("B3").setValue(50); | |
// Adding a sample value to "B4" cell | |
cells.get("B4").setValue(40); | |
// Adding a sample value to "C1" cell as category data | |
cells.get("C1").setValue("Q1"); | |
// Adding a sample value to "C2" cell as category data | |
cells.get("C2").setValue("Q2"); | |
// Adding a sample value to "C3" cell as category data | |
cells.get("C3").setValue("Y1"); | |
// Adding a sample value to "C4" cell as category data | |
cells.get("C4").setValue("Y2"); | |
// Adding a chart to the worksheet | |
ChartCollection charts = worksheet.getCharts(); | |
// Accessing the instance of the newly added chart | |
int chartIndex = charts.add(ChartType.COLUMN, 5, 0, 15, 5); | |
Chart chart = charts.get(chartIndex); | |
// Adding NSeries (chart data source) to the chart ranging from "A1" | |
// cell to "B4" | |
SeriesCollection nSeries = chart.getNSeries(); | |
nSeries.add("A1:B4", true); | |
// Setting the data source for the category data of NSeries | |
nSeries.setCategoryData("C1:C4"); | |
workbook.save(dataDir + "SettingChartsData_out.xls"); | |
// Print message | |
System.out.println("Workbook with chart is created successfully."); |
カテゴリーデータ
カテゴリ データは、グラフ データのラベル付けに使用され、追加できます。シリーズコレクションその使用によってsetCategoryData方法。
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// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-Java | |
// The path to the documents directory. | |
String dataDir = Utils.getSharedDataDir(SettingCategoryData.class) + "charts/"; | |
// Instantiating a Workbook object | |
Workbook workbook = new Workbook(); | |
WorksheetCollection worksheets = workbook.getWorksheets(); | |
// Obtaining the reference of the first worksheet | |
Worksheet worksheet = worksheets.get(0); | |
Cells cells = worksheet.getCells(); | |
// Adding a sample value to "A1" cell | |
cells.get("A1").setValue(50); | |
// Adding a sample value to "A2" cell | |
cells.get("A2").setValue(100); | |
// Adding a sample value to "A3" cell | |
cells.get("A3").setValue(150); | |
// Adding a sample value to "A4" cell | |
cells.get("A4").setValue(200); | |
// Adding a sample value to "B1" cell | |
cells.get("B1").setValue(60); | |
// Adding a sample value to "B2" cell | |
cells.get("B2").setValue(32); | |
// Adding a sample value to "B3" cell | |
cells.get("B3").setValue(50); | |
// Adding a sample value to "B4" cell | |
cells.get("B4").setValue(40); | |
// Adding a sample value to "C1" cell as category data | |
cells.get("C1").setValue("Q1"); | |
// Adding a sample value to "C2" cell as category data | |
cells.get("C2").setValue("Q2"); | |
// Adding a sample value to "C3" cell as category data | |
cells.get("C3").setValue("Y1"); | |
// Adding a sample value to "C4" cell as category data | |
cells.get("C4").setValue("Y2"); | |
// Adding a chart to the worksheet | |
ChartCollection charts = worksheet.getCharts(); | |
// Accessing the instance of the newly added chart | |
int chartIndex = charts.add(ChartType.COLUMN, 5, 0, 15, 5); | |
Chart chart = charts.get(chartIndex); | |
// Adding NSeries (chart data source) to the chart ranging from "A1" | |
// cell to "B4" | |
SeriesCollection nSeries = chart.getNSeries(); | |
nSeries.add("A1:B4", true); | |
// Setting the data source for the category data of NSeries | |
nSeries.setCategoryData("C1:C4"); | |
workbook.save(dataDir + "SettingCategoryData_out.xls"); | |
// Print message | |
System.out.println("Workbook with chart is created successfully."); |
グラフとカテゴリ データを含む縦棒グラフ