如何在Xyscatter图表的python-pptx中设置图表的字体大小，轴值和轴标题 [英] How to set font size of chart,axis values and axis titles in python-pptx for xyscatter chart

问题描述

我有一个使用python-pptx制作的非常简单的xy图表(感谢所有堆栈溢出帮助了我).我在设置XTitle，YTitle，ChartTitle，系列名称的字体大小以及在x的任何值(例如(0 20 40 60))上的值方面都感到吃力.我对pptx文档不是很清楚

I have very simple xy chart that I made with python-pptx (thanks all from stack overflows who helped me with this). I am struggling with setting font size of XTitle, YTitle, ChartTitle, Series Name and also values on x any axis like (0 20 40 60). The pptx documentation is not very clear to me

from pptx import Presentation
from pptx.util import Inches,Pt

from pptx.enum.chart import XL_CHART_TYPE
from pptx.chart.data import XySeriesData,XyChartData

prs = Presentation()
title_slide_layout = prs.slide_layouts[0]
blank_slide_layout = prs.slide_layouts[6]

slide = prs.slides.add_slide(title_slide_layout)
slide2 = prs.slides.add_slide(blank_slide_layout)

title = slide.shapes.title
subtitle = slide.placeholders[1]

title.text = "Hello, World!"
subtitle.text = "python-pptx was here!"
chart_data = XyChartData()
cd = chart_data.add_series('Series Name',number_format=None)
cxvalues=[0,1,2,3,4,5]
cyvalues=[10,22,33,38,40,43]

for x, y in list(zip(cxvalues, cyvalues)):
    cd.add_data_point(x, y, number_format=None)

x, y, cx, cy = Inches(1), Inches(2), Inches(8), Inches(3)
chart = slide2.shapes.add_chart(XL_CHART_TYPE.XY_SCATTER_LINES_NO_MARKERS, x, y, cx, cy, chart_data).chart
chart.category_axis.axis_title.text_frame.text= "XTitle"
chart.value_axis.axis_title.text_frame.text= "YTitle"

chart.chart_title.text_frame.text='ChartTitle'

prs.save('test_template.pptx')

推荐答案

尝试在轴和图表标题的第一段上使用 Font 对象:

Try using the Font object on the first paragraph of the axis and chart title:

from pptx.util import Pt

chart.chart_title.text_frame.paragraphs[0].font.size = Pt(36)
chart.category_axis.axis_title.text_frame.paragraphs[0].font.size = Pt(24)
chart.value_axis.axis_title.text_frame.paragraphs[0].font.size = Pt(24)

这几乎是您在任何其他文本框架中设置文本格式的方式，尽管我认为在这些标题对象的情况下，恰好只有一个段落.

This is pretty much how you would format text in any other text-frame, although I believe in the case of these title objects there is exactly one paragraph.

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