Qihuanye
91 lines
2.2 KiB
Python
91 lines
2.2 KiB
Python
import os
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from pathlib import Path
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import sys
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os.environ.setdefault("MPLCONFIGDIR", "/tmp/matplotlib")
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import matplotlib.pyplot as plt
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import numpy as np
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from matplotlib.ticker import AutoMinorLocator
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FONT_NAME = "LXGW WenKai"
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BG_COLOR = "white"
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GRID_MAJOR = "#111111"
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GRID_MINOR = "#8a8a8a"
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LINE_COLOR = "#111111"
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POINT_COLOR = "#111111"
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LOAD_RESISTANCE_OHM = np.array(
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[888.43, 788.46, 625.00, 534.84, 468.16, 494.69, 439.93, 415.40],
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dtype=float,
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)
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POWER_MW = np.array(
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[130.07, 133.25, 136.90, 143.15, 142.23, 142.29, 142.22, 141.25],
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dtype=float,
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)
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DEFAULT_OUTPUT = (
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Path(__file__).resolve().parent.parent / "image" / "exp5" / "power_load_curve.svg"
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)
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def draw_curve(save_path=DEFAULT_OUTPUT):
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save_path = Path(save_path)
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save_path.parent.mkdir(parents=True, exist_ok=True)
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plt.rcParams["font.family"] = FONT_NAME
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plt.rcParams["axes.unicode_minus"] = False
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order = np.argsort(LOAD_RESISTANCE_OHM)
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x = LOAD_RESISTANCE_OHM[order]
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y = POWER_MW[order]
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fig, ax = plt.subplots(figsize=(8.2, 6.0), dpi=160)
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fig.patch.set_facecolor(BG_COLOR)
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ax.set_facecolor(BG_COLOR)
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ax.plot(
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x,
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y,
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color=LINE_COLOR,
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linewidth=2.2,
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zorder=2,
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)
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ax.scatter(
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x,
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y,
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s=55,
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color=POINT_COLOR,
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edgecolors="white",
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linewidths=0.8,
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zorder=3,
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)
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ax.set_xlabel("负载电阻 R_L / Ω", fontsize=13)
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ax.set_ylabel("负载功率 P / mW", fontsize=13)
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ax.set_xlim(400, 900)
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ax.set_ylim(129, 144)
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ax.set_xticks(np.arange(400, 901, 100))
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ax.set_yticks(np.arange(130, 145, 2))
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ax.xaxis.set_minor_locator(AutoMinorLocator(2))
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ax.yaxis.set_minor_locator(AutoMinorLocator(2))
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ax.set_box_aspect(6 / 5)
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ax.grid(True, which="major", color=GRID_MAJOR, linewidth=0.95, alpha=0.9)
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ax.grid(True, which="minor", color=GRID_MINOR, linewidth=0.55, alpha=0.8)
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for spine in ax.spines.values():
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spine.set_linewidth(1.0)
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spine.set_color("#111111")
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fig.tight_layout()
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fig.savefig(save_path, bbox_inches="tight")
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plt.close(fig)
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print(f"saved to: {save_path}")
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if __name__ == "__main__":
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output_path = sys.argv[1] if len(sys.argv) > 1 else DEFAULT_OUTPUT
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draw_curve(output_path)
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