Réglage de l'apparence du graphique

Réglage de l’apparence du graphique

Dans Comment créer un graphique, nous avons donné une brève introduction aux types de graphiques et d’objets graphiques proposés par Aspose.Cells, et décrit comment en créer un. Cet article explique comment personnaliser l’apparence des graphiques en définissant leurs propriétés :

• Réglage de la zone graphique.
• Définition des lignes de graphique.
• Appliquer des thèmes.
• Définition des titres des graphiques et des axes.
• Travailler avec des quadrillages.

Réglage de la zone graphique

Il existe différents types de zones dans un graphique et Aspose.Cells offre la possibilité de modifier l’apparence de chaque zone. Les développeurs peuvent appliquer différents paramètres de mise en forme sur une zone en modifiant sa couleur de premier plan, sa couleur d’arrière-plan, son format de remplissage, etc.

Dans l’exemple ci-dessous, nous avons appliqué différents paramètres de mise en forme sur différents types de zones d’un graphique. Ces domaines comprennent :

• Superficie du terrain
• Zone graphique
• SérieEspace Collection
• Aire d’un seul point dans une SeriesCollection

L’extrait de code suivant montre comment définir la zone de graphique.

// 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");

Définition des lignes de graphique

Les développeurs peuvent également appliquer différents types de styles sur les lignes ou les marqueurs de données duSérieCollection. L’extrait de code suivant montre comment définir des lignes de graphique à l’aide de Aspose.Cells API.

// 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");

Application des thèmes Microsoft Excel 2007/2010 aux graphiques

Les développeurs peuvent appliquer différents thèmes/couleurs Excel Microsoft àSérieCollectionou d’autres objets de graphique comme indiqué ci-dessous dans l’exemple.

// 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");

Définition des titres des graphiques ou des axes

Vous pouvez utiliser Microsoft Excel pour définir les titres d’un graphique et ses axes dans un environnement WYSIWYG. Aspose.Cells permet également aux développeurs de définir les titres d’un graphique et ses axes lors de l’exécution. Tous les graphiques et leurs axes contiennent unTitrepropriété qui peut être utilisée pour définir leurs titres comme indiqué ci-dessous dans un exemple.

L’extrait de code suivant montre comment définir des titres pour les graphiques et les axes.

// 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");

Travailler avec le quadrillage principal

Il est possible de personnaliser l’apparence des principaux quadrillages. Masquez ou affichez les quadrillages, ou définissez leur couleur et d’autres paramètres. Ci-dessous, nous montrons comment masquer les lignes de grille et comment changer leur couleur.

Masquer le quadrillage principal

Les développeurs peuvent contrôler la visibilité des principaux quadrillages en définissant leEst visible propriété de laLa ligne s’opposer àvrai ou alorsfaux.

L’extrait de code suivant montre comment masquer les principaux quadrillages. Après avoir masqué les principaux quadrillages, un histogramme sera ajouté à la feuille de calcul sans quadrillage.

// 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");

Modification des paramètres du quadrillage principal

Les développeurs peuvent non seulement contrôler la visibilité des principaux quadrillages, mais également d’autres propriétés, notamment sa couleur, etc.

L’extrait de code suivant montre comment modifier la couleur du quadrillage principal. Après avoir défini la couleur du quadrillage principal, un histogramme sera ajouté à la feuille de calcul avec le quadrillage modifié.

// 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");

Sujets avancés

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