pyhon用matplotlib畫圖範例與設定字體
Python使用matplotlib畫圖範例
import matplotlib.pyplot as plt
import numpy as np
import os
import zipfile
# UserWarning: Glyph 26371 (\N{CJK UNIFIED IDEOGRAPH-6703}) missing from font(s) DejaVu Sans.
from matplotlib import font_manager
font_path = "/usr/share/fonts/opentype/noto/NotoSerifCJK-Medium.ttc" # 修改為字體實際路徑
font_prop = font_manager.FontProperties(fname=font_path)
plt.rcParams["font.family"] = font_prop.get_name()
# Chart 1: 全球市場規模成長趨勢（折線圖）
years = [2020, 2024, 2030]
values = [60, 280, 1800] # 單位：十億美元
plt.figure()
plt.plot(years, values, marker='o', linestyle='-', color='blue')
plt.title("全球 AI 市場規模成長（十億美元）")
plt.xlabel("年份")
plt.ylabel("市場規模")
plt.grid(True)
plt.tight_layout()
# Prepare folder for images
img_dir = "./ai_charts"
os.makedirs(img_dir, exist_ok=True)
plt.savefig(f"{img_dir}/01_market_growth.png")
plt.close()
Python列出matplotlib可用的字體
from matplotlib import font_manager
for f in font_manager.findSystemFonts(fontpaths=None, fontext='ttf'):
if "Noto" in f or "Hei" in f or "Gothic" in f:
print(f)
思源黑體 Noto Sans CJK
找出的舉例:
/usr/share/fonts/truetype/noto/NotoMono-Regular.ttf
/usr/share/fonts/truetype/noto/NotoSansMono-Regular.ttf
/usr/share/fonts/opentype/urw-base35/URWGothic-Demi.otf
/usr/share/fonts/opentype/noto/NotoSerifCJK-Medium.ttc
/usr/share/fonts/opentype/noto/NotoSansCJK-Bold.ttc
/usr/share/fonts/opentype/noto/NotoSerifCJK-ExtraLight.ttc
/usr/share/fonts/opentype/noto/NotoSerifCJK-SemiBold.ttc
/usr/share/fonts/opentype/noto/NotoSansCJK-Black.ttc
/usr/share/fonts/truetype/noto/NotoSansMono-Bold.ttf
/usr/share/fonts/opentype/noto/NotoSerifCJK-Bold.ttc
/usr/share/fonts/opentype/noto/NotoSansCJK-Light.ttc
/usr/share/fonts/opentype/noto/NotoSerifCJK-Black.ttc
/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc
/usr/share/fonts/opentype/noto/NotoSerifCJK-Regular.ttc
/usr/share/fonts/opentype/noto/NotoSansCJK-DemiLight.ttc
/usr/share/fonts/opentype/urw-base35/URWGothic-DemiOblique.otf
/usr/share/fonts/opentype/noto/NotoSansCJK-Thin.ttc
/usr/share/fonts/opentype/noto/NotoSansCJK-Medium.ttc
/usr/share/fonts/opentype/urw-base35/URWGothic-BookOblique.otf
/usr/share/fonts/opentype/urw-base35/URWGothic-Book.otf
/usr/share/fonts/opentype/noto/NotoSerifCJK-Light.ttc
/usr/share/fonts/truetype/noto/NotoColorEmoji.ttf
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