Diagrammdarstellung einstellen

Diagrammaussehen festlegen

In How to Create a Chart haben wir eine kurze Einführung in die Arten von Diagrammen und Diagrammobjekten gegeben, die von Aspose.Cells angeboten werden, und beschrieben, wie man eines erstellt. In diesem Artikel wird erläutert, wie das Erscheinungsbild von Diagrammen durch Festlegen ihrer Eigenschaften angepasst werden kann:

  • Festlegen des Diagrammbereichs.
  • Festlegen von Diagrammlinien.
  • Anwenden von Designs.
  • Titel für Diagramme und Achsen festlegen.
  • Arbeiten mit Gitterlinien.

Diagrammbereich einstellen

Es gibt verschiedene Arten von Bereichen in einem Diagramm und Aspose.Cells bietet die Flexibilität, das Erscheinungsbild jedes Bereichs zu ändern. Entwickler können verschiedene Formatierungseinstellungen auf einen Bereich anwenden, indem sie seine Vordergrundfarbe, Hintergrundfarbe und Füllformat usw. ändern.

Im untenstehenden Beispiel haben wir verschiedene Formatierungseinstellungen auf verschiedene Arten von Bereichen eines Diagramms angewendet. Diese Bereiche umfassen:

  • Plot-Bereich
  • Diagrammbereich
  • SeriesCollection Bereich
  • Fläche eines einzelnen Punktes in einer SeriesCollection

Der folgende Codeschnipsel zeigt, wie der Diagrammbereich festgelegt wird.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Create directory if it is not already present.
bool IsExists = System.IO.Directory.Exists(dataDir);
if (!IsExists)
System.IO.Directory.CreateDirectory(dataDir);
// Instantiating a Workbook object
Workbook workbook = new Workbook();
// Adding a new worksheet to the Workbook object
int sheetIndex = workbook.Worksheets.Add();
// Obtaining the reference of the newly added worksheet by passing its sheet index
Worksheet worksheet = workbook.Worksheets[sheetIndex];
// Adding sample values to cells
worksheet.Cells["A1"].PutValue(50);
worksheet.Cells["A2"].PutValue(100);
worksheet.Cells["A3"].PutValue(150);
worksheet.Cells["B1"].PutValue(60);
worksheet.Cells["B2"].PutValue(32);
worksheet.Cells["B3"].PutValue(50);
// Adding a chart to the worksheet
int chartIndex = worksheet.Charts.Add(Aspose.Cells.Charts.ChartType.Column, 5, 0, 15, 5);
// Accessing the instance of the newly added chart
Aspose.Cells.Charts.Chart chart = worksheet.Charts[chartIndex];
// Adding SeriesCollection (chart data source) to the chart ranging from "A1" cell to "B3"
chart.NSeries.Add("A1:B3", true);
// Setting the foreground color of the plot area
chart.PlotArea.Area.ForegroundColor = Color.Blue;
// Setting the foreground color of the chart area
chart.ChartArea.Area.ForegroundColor = Color.Yellow;
// Setting the foreground color of the 1st SeriesCollection area
chart.NSeries[0].Area.ForegroundColor = Color.Red;
// Setting the foreground color of the area of the 1st SeriesCollection point
chart.NSeries[0].Points[0].Area.ForegroundColor = Color.Cyan;
// Filling the area of the 2nd SeriesCollection with a gradient
chart.NSeries[1].Area.FillFormat.SetOneColorGradient(Color.Lime, 1, Aspose.Cells.Drawing.GradientStyleType.Horizontal, 1);
// Saving the Excel file
workbook.Save(dataDir + "book1.out.xls");

Einstellen von Diagramm Linien

Entwickler können auch verschiedene Arten von Stilen auf die Linien oder Datenmarkierungen der SeriesCollection anwenden. Der folgende Codeschnipsel zeigt, wie Diagrammlinien mit der Aspose.Cells-API festgelegt werden.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Create directory if it is not already present.
bool IsExists = System.IO.Directory.Exists(dataDir);
if (!IsExists)
System.IO.Directory.CreateDirectory(dataDir);
// Instantiating a Workbook object
Workbook workbook = new Workbook();
// Adding a new worksheet to the Workbook object
int sheetIndex = workbook.Worksheets.Add();
// Obtaining the reference of the newly added worksheet by passing its sheet index
Worksheet worksheet = workbook.Worksheets[sheetIndex];
// Adding sample values to cells
worksheet.Cells["A1"].PutValue(50);
worksheet.Cells["A2"].PutValue(100);
worksheet.Cells["A3"].PutValue(150);
worksheet.Cells["B1"].PutValue(60);
worksheet.Cells["B2"].PutValue(32);
worksheet.Cells["B3"].PutValue(50);
// Adding a chart to the worksheet
int chartIndex = worksheet.Charts.Add(Aspose.Cells.Charts.ChartType.Column, 5, 0, 15, 5);
// Accessing the instance of the newly added chart
Aspose.Cells.Charts.Chart chart = worksheet.Charts[chartIndex];
// Adding SeriesCollection (chart data source) to the chart ranging from "A1" cell to "B3"
chart.NSeries.Add("A1:B3", true);
// Setting the foreground color of the plot area
chart.PlotArea.Area.ForegroundColor = Color.Blue;
// Setting the foreground color of the chart area
chart.ChartArea.Area.ForegroundColor = Color.Yellow;
// Setting the foreground color of the 1st SeriesCollection area
chart.NSeries[0].Area.ForegroundColor = Color.Red;
// Setting the foreground color of the area of the 1st SeriesCollection point
chart.NSeries[0].Points[0].Area.ForegroundColor = Color.Cyan;
// Filling the area of the 2nd SeriesCollection with a gradient
chart.NSeries[1].Area.FillFormat.SetOneColorGradient(Color.Lime, 1, Aspose.Cells.Drawing.GradientStyleType.Horizontal, 1);
// Applying a dotted line style on the lines of a SeriesCollection
chart.NSeries[0].Border.Style = Aspose.Cells.Drawing.LineType.Dot;
// Applying a triangular marker style on the data markers of a SeriesCollection
chart.NSeries[0].Marker.MarkerStyle = Aspose.Cells.Charts.ChartMarkerType.Triangle;
// Setting the weight of all lines in a SeriesCollection to medium
chart.NSeries[1].Border.Weight = Aspose.Cells.Drawing.WeightType.MediumLine;
// Saving the Excel file
workbook.Save(dataDir + "book1.out.xls");

Anwendung von Microsoft Excel 2007/2010-Themen auf Diagramme

Entwickler können verschiedene Microsoft Excel-Themen/Farben auf SeriesCollection oder andere Diagrammobjekte anwenden, wie im folgenden Beispiel gezeigt.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Instantiate the workbook to open the file that contains a chart
Workbook workbook = new Workbook(dataDir + "book1.xlsx");
// Get the first worksheet
Worksheet worksheet = workbook.Worksheets[1];
// Get the first chart in the sheet
Chart chart = worksheet.Charts[0];
// Specify the FilFormat's type to Solid Fill of the first series
chart.NSeries[0].Area.FillFormat.FillType = Aspose.Cells.Drawing.FillType.Solid;
// Get the CellsColor of SolidFill
CellsColor cc = chart.NSeries[0].Area.FillFormat.SolidFill.CellsColor;
// Create a theme in Accent style
cc.ThemeColor = new ThemeColor(ThemeColorType.Accent6, 0.6);
// Apply the them to the series
chart.NSeries[0].Area.FillFormat.SolidFill.CellsColor = cc;
// Save the Excel file
workbook.Save(dataDir + "output.out.xlsx");

Einstellen der Titel von Diagrammen oder Achsen

Sie können Microsoft Excel verwenden, um die Titel eines Diagramms und seiner Achsen in einer WYSIWYG-Umgebung einzustellen. Aspose.Cells ermöglicht es Entwicklern auch, die Titel eines Diagramms und seiner Achsen zur Laufzeit festzulegen. Alle Diagramme und ihre Achsen enthalten eine Titel Eigenschaft, die in einem Beispiel unten wie folgt verwendet werden kann.

Der folgende Codeausschnitt zeigt, wie Titel für Diagramme und Achsen festgelegt werden können.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Create directory if it is not already present.
bool IsExists = System.IO.Directory.Exists(dataDir);
if (!IsExists)
System.IO.Directory.CreateDirectory(dataDir);
// Instantiating a Workbook object
Workbook workbook = new Workbook();
// Adding a new worksheet to the Workbook object
int sheetIndex = workbook.Worksheets.Add();
// Obtaining the reference of the newly added worksheet by passing its sheet index
Worksheet worksheet = workbook.Worksheets[sheetIndex];
// Adding sample values to cells
worksheet.Cells["A1"].PutValue(50);
worksheet.Cells["A2"].PutValue(100);
worksheet.Cells["A3"].PutValue(150);
worksheet.Cells["B1"].PutValue(60);
worksheet.Cells["B2"].PutValue(32);
worksheet.Cells["B3"].PutValue(50);
// Adding a chart to the worksheet
int chartIndex = worksheet.Charts.Add(Aspose.Cells.Charts.ChartType.Column, 5, 0, 15, 5);
// Accessing the instance of the newly added chart
Aspose.Cells.Charts.Chart chart = worksheet.Charts[chartIndex];
// Adding SeriesCollection (chart data source) to the chart ranging from "A1" cell to "B3"
chart.NSeries.Add("A1:B3", true);
// Setting the foreground color of the plot area
chart.PlotArea.Area.ForegroundColor = Color.Blue;
// Setting the foreground color of the chart area
chart.ChartArea.Area.ForegroundColor = Color.Yellow;
// Setting the foreground color of the 1st SeriesCollection area
chart.NSeries[0].Area.ForegroundColor = Color.Red;
// Setting the foreground color of the area of the 1st SeriesCollection point
chart.NSeries[0].Points[0].Area.ForegroundColor = Color.Cyan;
// Filling the area of the 2nd SeriesCollection with a gradient
chart.NSeries[1].Area.FillFormat.SetOneColorGradient(Color.Lime, 1, Aspose.Cells.Drawing.GradientStyleType.Horizontal, 1);
// Setting the title of a chart
chart.Title.Text = "Title";
// Setting the font color of the chart title to blue
chart.Title.Font.Color = Color.Blue;
// Setting the title of category axis of the chart
chart.CategoryAxis.Title.Text = "Category";
// Setting the title of value axis of the chart
chart.ValueAxis.Title.Text = "Value";
// Saving the Excel file
workbook.Save(dataDir + "book1.out.xls");

Arbeiten mit Haupt-Gitterlinien

Es ist möglich, das Aussehen der Haupt-Gitterlinien anzupassen. Gitterlinien ausblenden oder anzeigen, oder ihre Farbe und andere Einstellungen definieren. Nachfolgend zeigen wir, wie die Gitterlinien ausgeblendet und wie ihre Farbe geändert wird.

Ausblenden von Haupt-Gitterlinien

Entwickler können die Sichtbarkeit der Haupt-Gitterlinien steuern, indem sie die IsVisible-Eigenschaft des Line-Objekts auf true oder false setzen.

Der folgende Codeschnipsel zeigt, wie Haupt-Gitterlinien verborgen werden. Nach dem Ausblenden der Haupt-Gitterlinien wird dem Arbeitsblatt ein Säulendiagramm hinzugefügt, das keine Gitterlinien hat.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Create directory if it is not already present.
bool IsExists = System.IO.Directory.Exists(dataDir);
if (!IsExists)
System.IO.Directory.CreateDirectory(dataDir);
// Instantiating a Workbook object
Workbook workbook = new Workbook();
// Adding a new worksheet to the Workbook object
int sheetIndex = workbook.Worksheets.Add();
// Obtaining the reference of the newly added worksheet by passing its sheet index
Worksheet worksheet = workbook.Worksheets[sheetIndex];
// Adding sample values to cells
worksheet.Cells["A1"].PutValue(50);
worksheet.Cells["A2"].PutValue(100);
worksheet.Cells["A3"].PutValue(150);
worksheet.Cells["B1"].PutValue(60);
worksheet.Cells["B2"].PutValue(32);
worksheet.Cells["B3"].PutValue(50);
// Adding a chart to the worksheet
int chartIndex = worksheet.Charts.Add(Aspose.Cells.Charts.ChartType.Column, 5, 0, 15, 5);
// Accessing the instance of the newly added chart
Aspose.Cells.Charts.Chart chart = worksheet.Charts[chartIndex];
// Adding SeriesCollection (chart data source) to the chart ranging from "A1" cell to "B3"
chart.NSeries.Add("A1:B3", true);
// Setting the foreground color of the plot area
chart.PlotArea.Area.ForegroundColor = Color.Blue;
// Setting the foreground color of the chart area
chart.ChartArea.Area.ForegroundColor = Color.Yellow;
// Setting the foreground color of the 1st SeriesCollection area
chart.NSeries[0].Area.ForegroundColor = Color.Red;
// Setting the foreground color of the area of the 1st SeriesCollection point
chart.NSeries[0].Points[0].Area.ForegroundColor = Color.Cyan;
// Filling the area of the 2nd SeriesCollection with a gradient
chart.NSeries[1].Area.FillFormat.SetOneColorGradient(Color.Lime, 1, Aspose.Cells.Drawing.GradientStyleType.Horizontal, 1);
// Hiding the major gridlines of Category Axis
chart.CategoryAxis.MajorGridLines.IsVisible = false;
// Hiding the major gridlines of Value Axis
chart.ValueAxis.MajorGridLines.IsVisible = false;
// Saving the Excel file
workbook.Save(dataDir + "book1.out.xls");

Ändern der Einstellungen für Haupt-Gitterlinien

Entwickler können nicht nur die Sichtbarkeit der Haupt-Gitterlinien, sondern auch andere Eigenschaften wie deren Farbe usw. steuern.

Der folgende Codeschnipsel zeigt, wie die Farbe der Haupt-Gitterlinien geändert wird. Nachdem die Farbe der Haupt-Gitterlinien festgelegt wurde, wird dem Arbeitsblatt ein Säulendiagramm mit geänderten Gitterlinien hinzugefügt.

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Create directory if it is not already present.
bool IsExists = System.IO.Directory.Exists(dataDir);
if (!IsExists)
System.IO.Directory.CreateDirectory(dataDir);
// Instantiating a Workbook object
Workbook workbook = new Workbook();
// Adding a new worksheet to the Workbook object
int sheetIndex = workbook.Worksheets.Add();
// Obtaining the reference of the newly added worksheet by passing its sheet index
Worksheet worksheet = workbook.Worksheets[sheetIndex];
// Adding sample values to cells
worksheet.Cells["A1"].PutValue(50);
worksheet.Cells["A2"].PutValue(100);
worksheet.Cells["A3"].PutValue(150);
worksheet.Cells["B1"].PutValue(60);
worksheet.Cells["B2"].PutValue(32);
worksheet.Cells["B3"].PutValue(50);
// Adding a chart to the worksheet
int chartIndex = worksheet.Charts.Add(Aspose.Cells.Charts.ChartType.Column, 5, 0, 15, 5);
// Accessing the instance of the newly added chart
Aspose.Cells.Charts.Chart chart = worksheet.Charts[chartIndex];
// Adding SeriesCollection (chart data source) to the chart ranging from "A1" cell to "B3"
chart.NSeries.Add("A1:B3", true);
// Setting the foreground color of the plot area
chart.PlotArea.Area.ForegroundColor = Color.Blue;
// Setting the foreground color of the chart area
chart.ChartArea.Area.ForegroundColor = Color.Yellow;
// Setting the foreground color of the 1st SeriesCollection area
chart.NSeries[0].Area.ForegroundColor = Color.Red;
// Setting the foreground color of the area of the 1st SeriesCollection point
chart.NSeries[0].Points[0].Area.ForegroundColor = Color.Cyan;
// Filling the area of the 2nd SeriesCollection with a gradient
chart.NSeries[1].Area.FillFormat.SetOneColorGradient(Color.Lime, 1, Aspose.Cells.Drawing.GradientStyleType.Horizontal, 1);
// Setting the color of Category Axis' major gridlines to silver
chart.CategoryAxis.MajorGridLines.Color = Color.Silver;
// Setting the color of Value Axis' major gridlines to red
chart.ValueAxis.MajorGridLines.Color = Color.Red;
// Saving the Excel file
workbook.Save(dataDir + "book1.out.xls");

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