Paramétrer l apparence du graphique
Réglage de l’apparence du graphique
Dans Comment créer un graphique, nous avons présenté brièvement les types de graphiques et d’objets de graphiques offerts par Aspose.Cells, et décrit comment en créer un. Cet article discute comment personnaliser l’apparence des graphiques en définissant leurs propriétés :
- Définir la zone du graphique.
- Définition des lignes du graphique.
- Application de thèmes.
- Définition des titres des graphiques et des axes.
- Travailler avec des lignes de repère.
Définition de la zone du graphique
Il existe différents types de zones dans un graphique et Aspose.Cells offre la flexibilité de modifier l’apparence de chaque zone. Les développeurs peuvent appliquer différents paramètres de mise en forme à une zone en changeant sa couleur avant-plan, sa couleur d’arrière-plan et 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 zones comprennent :
- Zone de traçage
- Zone du graphique Zone de SeriesCollection
- Zone d’un point unique dans une SeriesCollection
Le code suivant montre comment définir la zone du 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 du graphique
Les développeurs peuvent également appliquer différents types de styles sur les lignes ou les marqueurs de données de la SeriesCollection. Le code suivant montre comment définir les lignes du graphique à l’aide de l’API Aspose.Cells.
// 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 de Microsoft Excel à SeriesCollection ou à 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"); |
Configuration des titres des graphiques ou des axes
Vous pouvez utiliser Microsoft Excel pour définir les titres d’un graphique et de ses axes dans un environnement WYSIWYG. Aspose.Cells permet également aux développeurs de définir les titres d’un graphique et de ses axes à l’exécution. Tous les graphiques et leurs axes contiennent une propriété Titre qui peut être utilisée pour définir leurs titres comme illustré ci-dessous dans un exemple.
Le snippet de code suivant démontre 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 les grandes lignes de la grille
Il est possible de personnaliser l’apparence des grandes lignes de la grille. Masquer ou afficher les lignes de la grille, ou définir leur couleur et d’autres paramètres. Ci-dessous, nous montrons comment masquer les lignes de la grille et comment changer leur couleur.
Masquer les grandes lignes de la grille
Les développeurs peuvent contrôler la visibilité des grandes lignes de la grille en définissant la propriété IsVisible de l’objet Line à true ou false.
Le code suivant montre comment masquer les grandes lignes de la grille. Après avoir masqué les grandes lignes de la grille, un graphique en colonnes sera ajouté à la feuille de calcul sans lignes de grille.
// 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"); |
Changer les paramètres des grandes lignes de la grille
Les développeurs peuvent non seulement contrôler la visibilité des grandes lignes de la grille, mais aussi d’autres propriétés comme sa couleur, etc.
Le code suivant montre comment changer la couleur des grandes lignes de la grille. Après avoir défini la couleur des grandes lignes de la grille, un graphique en colonnes sera ajouté à la feuille de calcul avec des lignes de grille modifiées.
// 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"); |