如何在 XL_CHART_TYPE.LINE_MARKERS 中设置标记颜色

Question

使用XL_CHART_TYPE.LINE_MARKERS时如何设置标记颜色（线条，标记主体）？ chart.plots[0].series[0].marker.fill.fore_color = pptx.dml.color.RGBColor(0,0,0) 之类的技巧不起作用

下面是一个代码示例：

import traceback
import sys
from pptx import Presentation
from pptx.chart.data import ChartData
from pptx.enum.chart import XL_CHART_TYPE
from pptx.util import Inches
import pptx
from pptx import Presentation
from pptx.util import Cm, Pt
from pptx.enum.text import MSO_ANCHOR,MSO_VERTICAL_ANCHOR, MSO_AUTO_SIZE,PP_ALIGN
from pptx.chart.data import CategoryChartData, ChartData
from pptx.enum.chart import XL_CHART_TYPE
from pptx.enum.chart import XL_TICK_MARK
from pptx.enum.chart import XL_LEGEND_POSITION
from pptx.dml.chtfmt import ChartFormat
from pptx.dml.line import LineFormat
from pptx.dml.color import ColorFormat, RGBColor
from pptx.enum.dml import MSO_LINE
prs = Presentation()
slide = prs.slides.add_slide(prs.slide_layouts[5])
chart_data = ChartData()
chart_data.categories = ['Q1 Sales', 'Q2 Sales', 'Q3 Sales']
chart_data.add_series('West',    (32.2, 28.4, 34.7))
chart_data.add_series('East',    (24.3, 30.6, 20.2))
chart_data.add_series('Midwest', (20.4, 18.3, 26.2))
x, y, cx, cy = Inches(2), Inches(2), Inches(6), Inches(4.5)
chart = slide.shapes.add_chart(
    XL_CHART_TYPE.LINE_MARKERS, x, y, cx, cy, chart_data
).chart
chart.has_legend = True
chart.legend.include_in_layout = False
chart.series[0].smooth = True
chart.plots[0].series[0].marker.style = 8

try:
    fill = chart.plots[0].series[0].marker.format.fill
    fill.solid()
    fill.fore_color = RGBColor(0,0,0)
    #chart.plots[0].series[0].marker.format.line.color = RGBColor(255,0,0)
    #chart.plots[0].series[1].marker.style = 2
except Exception as error:
    traceback.print_exc()
prs.save('chart-01.pptx')

它产生错误：

Traceback (most recent call last): File "", line 38, in
fill.fore_color = RGBColor(0,0,0) AttributeError: can't set attribute

Answer 1

尝试：

fill = series.marker.format.fill
fill.solid()
fill.fore_color.rgb = RGBColor(0,0,0)

（注意标记和填充之间的 .format。）

这会设置该系列所有标记的颜色。

如果你想设置单个点的颜色，你可以使用类似的东西：

fill = series.points[0].format.fill
fill.solid()
fill.fore_color.rgb = RGBColor(255, 0, 0)

fill.solid() 调用将填充类型设置为实体，这在分配给 .fore_color 之前是必需的，因为并非所有填充类型都具有 .fore_color 属性。

如何在 XL_CHART_TYPE.LINE_MARKERS 中设置标记颜色

How to set marker color in XL_CHART_TYPE.LINE_MARKERS

python-3.x

python-pptx