我需要准确设置图表的维度。我试过这个,但结果不是我所期望的(如果我设置了 px 和 cm)。成瘾,我想知道如何正确导出图像。谢谢你的帮助!
import numpy as np
plt.rcParams['figure.dpi']=100
# create data
x = ['A', 'B', 'C', 'D']
y1 = np.array([10, 20, 10, 30])
y2 = np.array([20, 25, 15, 25])
y3 = np.array([12, 15, 19, 6])
y4 = np.array([10, 29, 13, 19])
# plot bars in stack manner
cm = 1/2.54 # centimeters in inches
px = 1/plt.rcParams['figure.dpi'] # pixel in inches
plt.figure(figsize=(800*px,1000*px))
plt.bar(x, y1, color='r')
plt.bar(x, y2, bottom=y1, color='b')
plt.bar(x, y3, bottom=y1+y2, color='y')
plt.bar(x, y4, bottom=y1+y2+y3, color='g')
plt.xlabel("Teams")
plt.ylabel("Score")
plt.legend(["Round 1", "Round 2", "Round 3", "Round 4"])
plt.title("Scores by Teams in 4 Rounds")
plt.show()
预期尺寸:800 像素 x 1000 像素,dpi= 100 我在此处附上导出图像的 Photoshop 屏幕截图 尺寸不正确!