Datenformatierung in Diagrammen

In unseren vorherigen Themen haben wir bereits viele Beispiele bereitgestellt, um zu demonstrieren, wie Sie eine Datenquelle für Ihr Diagramm festlegen können, aber in diesem Thema werden wir weitere Details zu den Datentypen bereitstellen, die für ein Diagramm festgelegt werden können.

Diagrammdaten einstellen

Bei der Arbeit an Diagrammen mit Aspose.Cells müssen zwei Arten von Daten wie folgt behandelt werden:

• Diagrammdaten.
• Kategoriedaten.

Diagrammdaten

Diagrammdaten sind die Daten, die wir als Datenquelle zum Erstellen unserer Diagramme verwenden. Wir können einen Bereich der Zellen (mit Diagrammdaten) hinzufügen, indem wir die aufrufenSerieSammlung ObjektAddieren Methode.

// 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.");

Kategoriedaten

Kategoriedaten dienen der Beschriftung von Diagrammdaten und können ergänzt werdenSerieSammlung durch die Verwendung seinersetCategoryDataMethode.

// 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.");

Säulendiagramm mit Diagramm- und Kategoriedaten

Themen vorantreiben

• Erstellen Sie dynamische Diagramme
• Einfache Methode zum Einrichten von Diagrammen mit der Methode Chart.setChartDataRange
• Finden Sie den Typ von X- und Y-Werten von Punkten in Diagrammreihen
• Legen Sie den Werteformatcode der Diagrammreihe fest