使用 Line2D 在 python 中绘制线条
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Use Line2D to plot line in python
提问by user0
I have the data:
我有数据：
x = [10,24,23,23,3]
y = [12,2,3,4,2]
I want to plot it using
我想用它来绘制它
matplotlib.lines.Line2D(xdata, ydata)
matplotlib.lines.Line2D(xdata, ydata)
I use
我用
import matplotlib.lines
matplotlib.lines.Line2D(x, y)
But how do I show the line?
但是我如何显示这条线？
采纳答案by awesoon
You should add the line to a plot and then show it:
您应该将线添加到绘图中，然后显示它：
In [13]: import matplotlib.pyplot as plt
In [15]: from matplotlib.lines import Line2D
In [16]: fig = plt.figure()
In [17]: ax = fig.add_subplot(111)
In [18]: x = [10,24,23,23,3]
In [19]: y = [12,2,3,4,2]
In [20]: line = Line2D(x, y)
In [21]: ax.add_line(line)
Out[21]: <matplotlib.lines.Line2D at 0x7f4c10732f60>
In [22]: ax.set_xlim(min(x), max(x))
Out[22]: (3, 24)
In [23]: ax.set_ylim(min(y), max(y))
Out[23]: (2, 12)
In [24]: plt.show()
The result:
结果：
回答by benjimin
The more common approach (not exactly what the questioner asked) is to use the plotinterface. This involves Line2D behind the scenes.
更常见的方法（不完全是提问者所问的）是使用绘图界面。这涉及幕后的 Line2D。
>>> x = [10,24,23,23,3]
>>> y = [12,2,3,4,2]
>>> import matplotlib.pyplot as plt
>>> plt.plot(x,y)
[<matplotlib.lines.Line2D object at 0x7f407c1a8ef0>]
>>> plt.show()
