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[英]How to set the font color of the data labels of the doughnut chart using python-pptx?
[英]How can adjust the size of doughnut chart using python's pptx module
我想使用 python 的 pptx 模塊有多個圓環圖(最多 3 個)。 截至目前,我只能添加一個圖表,如何相應地減小甜甜圈的大小,以便我可以在一張幻燈片中調整 2 或 3 個圖表。 此外,如何根據具有不同值集的圖表數量自動調整甜甜圈的大小。
python 代碼:
from pptx import Presentation
from pptx.util import Pt, Cm, Inches
from pptx.chart.data import CategoryChartData, ChartData
from pptx.enum.chart import XL_CHART_TYPE
def create_ppt():
pr = Presentation()
slide1_register = pr.slide_layouts[0]
#add initial slide
slide1 = pr.slides.add_slide(slide1_register)
#top placeholder
title1 = slide1.shapes.title
#subtitle
sub_title = slide1.placeholders[1]
# insert text
title1.text = "Data"
title_para = title1.text_frame.paragraphs[0]
title_para.font.name = "Arial (Headings)"
title_para.font.size = Pt(34)
title1.top = Cm(1)
title1.left = Cm(0)
title1.width = Cm(15)
title1.height = Cm(3)
chart_data = ChartData()
chart_data.categories = ['X1', 'X2', 'X3', 'X4']
chart_data.add_series('Data 1', (75, 10, 5, 4))
x, y, cx, cy = Inches(2), Inches(2), Inches(6), Inches(4.5)
chart = slide1.shapes.add_chart(
XL_CHART_TYPE.DOUGHNUT, x, y, cx, cy, chart_data
).chart
chart.has_legend = True
chart.legend.include_in_layout = False
apply_data_labels(chart)
pr.save("test222222222.pptx")
def apply_data_labels(chart):
plot = chart.plots[0]
plot.has_data_labels = True
for series in plot.series:
values = series.values
counter = 0
for point in series.points:
data_label = point.data_label
data_label.has_text_frame = True
data_label.text_frame.text = str(values[counter])
counter = counter + 1
create_ppt()
插入圖表時,您可以指定其 position 和大小,就像您已經做的那樣:
x, y, cx, cy = Inches(2), Inches(2), Inches(6), Inches(4.5)
slide1.shapes.add_chart(XL_CHART_TYPE.DOUGHNUT, x, y, cx, cy, chart_data)
在上面的代碼中, x
和y
是圖表左上角的坐標,而cx
和cy
分別是寬度和高度。
您可以使用適當的 position 和大小值重復調用add_chart
多次,次數與要插入的圖表一樣多。
請在此處查看shapes.add_chart
function 的文檔。
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