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使用 Python 将 PowerPoint 图表和图表添加到 PPT
构建您自己的 Python 应用程序,以使用服务器端 API 在演示文稿文件中创建完全可定制的图表。了解如何向图表添加新系列和类别。
通过 Python 将饼图添加到 PPT 演示文稿
饼图用于显示数据中部分与整体的关系,尤其是当数据包含带有数值的分类标签时。 Aspose.Slides for Python via .NET 提供了一个强大的 API,用于在 PowerPoint 演示文稿中创建饼图。您可以在此 链接 中找到有关使用 Aspose.Slides for Python API 自定义饼图的更多信息。
以下代码示例显示了如何在 Python 的 PowerPoint PPT 中创建饼图。
import aspose.slides as slides
import aspose.pydrawing as drawing
# Create presentation (or load existing one)
with slides.Presentation() as presentation:
# Access first slide
slide = presentation.slides[0]
# Add chart with default data
chart = slide.shapes.add_chart(slides.charts.ChartType.PIE, 100, 100, 400, 400)
# Set chart title
chart.chart_title.add_text_frame_for_overriding("Sample Title")
chart.chart_title.text_frame_for_overriding.text_frame_format.center_text = slides.NullableBool(True)
chart.chart_title.height = 20
chart.has_title = True
# Set first series to show values
chart.chart_data.series[0].labels.default_data_label_format.show_value = True
# Set the index of chart data sheet
defaultWorksheetIndex = 0
# Get the chart data worksheet
fact = chart.chart_data.chart_data_workbook
# Delete default generated series and categories
chart.chart_data.series.clear()
chart.chart_data.categories.clear()
# Add new categories
chart.chart_data.categories.add(fact.get_cell(0, 1, 0, "First Qtr"))
chart.chart_data.categories.add(fact.get_cell(0, 2, 0, "2nd Qtr"))
chart.chart_data.categories.add(fact.get_cell(0, 3, 0, "3rd Qtr"))
# Add new series
series = chart.chart_data.series.add(fact.get_cell(0, 0, 1, "Series 1"), chart.type)
# Populate series data
series.data_points.add_data_point_for_pie_series(fact.get_cell(defaultWorksheetIndex, 1, 1, 20))
series.data_points.add_data_point_for_pie_series(fact.get_cell(defaultWorksheetIndex, 2, 1, 50))
series.data_points.add_data_point_for_pie_series(fact.get_cell(defaultWorksheetIndex, 3, 1, 30))
# Add new points and set sector color
chart.chart_data.series_groups[0].is_color_varied = True
point = series.data_points[0]
point.format.fill.fill_type = slides.FillType.SOLID
point.format.fill.solid_fill_color.color = drawing.Color.orange
# Set sector border
point.format.line.fill_format.fill_type = slides.FillType.SOLID
point.format.line.fill_format.solid_fill_color.color = drawing.Color.gray
point.format.line.width = 3.0
point1 = series.data_points[1]
point1.format.fill.fill_type = slides.FillType.SOLID
point1.format.fill.solid_fill_color.color = drawing.Color.blue_violet
# Set sector border
point1.format.line.fill_format.fill_type = slides.FillType.SOLID
point1.format.line.fill_format.solid_fill_color.color = drawing.Color.blue
point1.format.line.width = 3.0
# point1.format.line.style = slides.LineStyle.SINGLE
# point1.format.line.dash_style = slides.LineDashStyle.LARGE_DASH_DOT
point2 = series.data_points[2]
point2.format.fill.fill_type = slides.FillType.SOLID
point2.format.fill.solid_fill_color.color = drawing.Color.yellow_green
# Set sector border
point2.format.line.fill_format.fill_type = slides.FillType.SOLID
point2.format.line.fill_format.solid_fill_color.color = drawing.Color.red
point2.format.line.width = 2.0
# point2.format.line.style = slides.LineStyle.THIN_THIN
# point2.format.line.dash_style = slides.LineDashStyle.LARGE_DASH_DOT_DOT
# Create custom labels for each of categories for new series
lbl1 = series.data_points[0].label
# lbl.show_category_name = True
lbl1.data_label_format.show_value = True
lbl2 = series.data_points[1].label
lbl2.data_label_format.show_value = True
lbl2.data_label_format.show_legend_key = True
lbl2.data_label_format.show_percentage = True
lbl3 = series.data_points[2].label
lbl3.data_label_format.show_series_name = True
lbl3.data_label_format.show_percentage = True
# Show leader lines for chart
# series.labels.default_data_label_format.show_leader_lines = True
# Set rotation angle for pie chart sectors
chart.chart_data.series_groups[0].first_slice_angle = 180
# Save presentation
presentation.save("pie-chart.ppt", slides.export.SaveFormat.PPT)
如何通过 Python 在 PPT 中创建和自定义饼图
这些是将饼图添加到 PPT 文件的步骤。
首先,创建一个 PPT Presentation 类的实例。
使用 add_chart(…) 方法添加一个带有默认数据的饼图。
配置饼图的必要属性(设置图表标题,修改图表数据,将格式应用于系列和类别)
以 PPT 格式保存结果