Initial commit

2026-04-27 14:51:49 +08:00
commit dbbfc2867d
69 changed files with 68307 additions and 0 deletions
@@ -0,0 +1,87 @@
+import os
+from pathlib import Path
+import sys
+
+os.environ.setdefault("MPLCONFIGDIR", "/tmp/matplotlib")
+
+import matplotlib.pyplot as plt
+import numpy as np
+from matplotlib.ticker import AutoMinorLocator
+
+FONT_NAME = "LXGW WenKai"
+BG_COLOR = "white"
+GRID_MAJOR = "#111111"
+GRID_MINOR = "#8a8a8a"
+LINE_COLOR = "#111111"
+POINT_COLOR = "#111111"
+
+CURRENT_MA = np.array([10.63, 11.54, 12.71, 13.62, 14.76], dtype=float)
+VOLTAGE_V = np.array([10.82, 10.17, 9.57, 8.91, 8.21], dtype=float)
+
+DEFAULT_OUTPUT = (
+    Path(__file__).resolve().parent.parent
+    / "image"
+    / "exp3"
+    / "vi_characteristic_curve_table4.svg"
+)
+
+
+def draw_curve(save_path=DEFAULT_OUTPUT):
+    save_path = Path(save_path)
+    save_path.parent.mkdir(parents=True, exist_ok=True)
+
+    plt.rcParams["font.family"] = FONT_NAME
+    plt.rcParams["axes.unicode_minus"] = False
+
+    slope, intercept = np.polyfit(CURRENT_MA, VOLTAGE_V, 1)
+    fit_x = np.linspace(CURRENT_MA.min() - 0.4, CURRENT_MA.max() + 0.4, 200)
+    fit_y = slope * fit_x + intercept
+
+    fig, ax = plt.subplots(figsize=(8.2, 6.0), dpi=160)
+    fig.patch.set_facecolor(BG_COLOR)
+    ax.set_facecolor(BG_COLOR)
+
+    ax.plot(
+        fit_x,
+        fit_y,
+        color=LINE_COLOR,
+        linewidth=2.2,
+        zorder=2,
+    )
+    ax.scatter(
+        CURRENT_MA,
+        VOLTAGE_V,
+        s=60,
+        color=POINT_COLOR,
+        edgecolors="white",
+        linewidths=0.8,
+        zorder=3,
+    )
+
+    ax.set_xlabel("端口电流 I / mA", fontsize=13)
+    ax.set_ylabel("端口电压 U / V", fontsize=13)
+
+    ax.set_xlim(10.5, 14.9)
+    ax.set_ylim(8.0, 11.0)
+    ax.set_xticks(np.arange(11, 15, 1))
+    ax.set_yticks(np.arange(8.0, 11.1, 0.5))
+    ax.xaxis.set_minor_locator(AutoMinorLocator(2))
+    ax.yaxis.set_minor_locator(AutoMinorLocator(2))
+    ax.set_box_aspect(6 / 5)
+
+    ax.grid(True, which="major", color=GRID_MAJOR, linewidth=0.95, alpha=0.9)
+    ax.grid(True, which="minor", color=GRID_MINOR, linewidth=0.55, alpha=0.8)
+
+    for spine in ax.spines.values():
+        spine.set_linewidth(1.0)
+        spine.set_color("#111111")
+
+    fig.tight_layout()
+    fig.savefig(save_path, bbox_inches="tight")
+    plt.close(fig)
+    print(f"saved to: {save_path}")
+
+
+if __name__ == "__main__":
+    output_path = sys.argv[1] if len(sys.argv) > 1 else DEFAULT_OUTPUT
+    draw_curve(output_path)