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0 Collection/LineCollection.py

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+import numpy as np
+import matplotlib.pyplot as plt
+from matplotlib.collections import LineCollection
+#绘制50条线
+N = 50
+x = np.arange(N)
+ys = [x + i for i in x]  # Many sets of y to plot vs. x
+segs = [np.column_stack([x, y]) for y in ys]
+
+fig, ax = plt.subplots()
+ax.set_xlim(np.min(x), np.max(x))
+ax.set_ylim(np.min(ys), np.max(ys))
+
+colors = plt.rcParams['axes.prop_cycle'].by_key()['color']
+
+line_segments = LineCollection(segs,
+                               array=x,
+                               linewidths=(0.5, 1, 1.5, 2,4,6),#设置线条宽度
+                               colors=colors,#设置颜色
+                               linestyles='dashed',#设置线条为短虚线
+                               # antialiaseds=False,#抗锯齿关闭
+                               )
+ax.add_collection(line_segments)
+# 这段决定colorbar
+# axcb = fig.colorbar(line_segments)
+# axcb.set_label('Line Number')
+ax.set_title('Line Collection with mapped colors')
+plt.sci(line_segments)  # This allows interactive changing of the colormap.
+plt.show()