《Python数据可视化之matplotlib实践》 源码 第四篇 扩展 第十一章（python 绘图库Matplotlib）

《Python数据可视化之matplotlib实践》 源码 第四篇 扩展 第十一章（python 绘图库Matplotlib）

图  11.2

import matplotlib.pyplot as pltimport matplotlib as mplimport numpy as npplt.axes([0.1, 0.1, 0.8, 0.8], frameon=True, facecolor="y", aspect="equal")plt.plot(2+np.arange(3), [0, 1, 0])plt.title("Line Chart")plt.text(2.25, 0.8, "FONT")plt.show()

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图  11.3

import matplotlib.pyplot as pltimport numpy as npplt.rcParams["lines.linewidth"]=8.0plt.rcParams["lines.linestyle"]="--"plt.rcParams["font.family"]="serif"plt.rcParams["font.serif"]="New Century Schoolbook" ###plt.rcParams["font.style"]="normal"plt.rcParams["font.variant"]="small-caps"plt.rcParams["font.weight"]="black"plt.rcParams["font.size"]=12.0plt.rcParams["text.color"]="blue"plt.axes([0.1, 0.1, 0.8, 0.8], frameon=True, facecolor="y", aspect="equal")plt.plot(2+np.arange(3), [0, 1, 0])plt.title("Line Chart")plt.text(2.25, 0.8, "FONT")plt.show()

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图  11.4

import matplotlib.pyplot as pltimport numpy as npplt.axes([0.1, 0.1, 0.8, 0.8], frameon=True, facecolor="y", aspect="equal")plt.plot(2+np.arange(3), [0, 1, 0], linewidth=8.0, linestyle="--")plt.title("Line Chart", color="red", family="New Century Schoolbook", style="normal", variant="small-caps", weight="black", size=18) ###plt.text(2.25, 0.8, "FONT", color="blue", fontdict={"family":"New Century Schoolbook", "style":"normal", "variant":"small-caps", "weight":"black", "size":28}) ###plt.show()

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图  11.5

import matplotlib.pyplot as pltfig=plt.figure()ax=fig.add_subplot(111)pi=[0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1]families=["serif", "sans-serif", "fantasy", "monospace"]ax.text(-1, 1, "family", fontsize=18, horizontalalignment="center")for i, family in enumerate(families): ax.text(-1, pi[i], family, family=family, horizontalalignment="center") sizes=["xx-small", "x-small", "small", "medium", "large", "x-large", "xx-large"]ax.text(-0.5, 1, "size", fontsize=18, horizontalalignment="center")for i, size in enumerate(sizes): ax.text(-0.5, pi[i], size, size=size, horizontalalignment="center") styles=["normal", "italic", "oblique"]ax.text(0, 1, "style", fontsize=18, horizontalalignment="center")for i, style in enumerate(styles): ax.text(0, pi[i], style, family="sans-serif", style=style, horizontalalignment="center")variants=["normal", "small-caps"]ax.text(0.5, 1, "variant", fontsize=18, horizontalalignment="center")for i, variant in enumerate(variants): ax.text(0.5, pi[i], variant, family="serif", variant=variant, horizontalalignment="center")weights=["light", "normal", "semibold", "bold", "black"]ax.text(1, 1, "weight", fontsize=18, horizontalalignment="center")for i, weight in enumerate(weights): ax.text(1, pi[i], weight, weight=weight, horizontalalignment="center")ax.axis([-1.5, 1.5, 0.1, 1.1])ax.set_xticks([])ax.set_yticks([])plt.show()

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