pyqtgraph:具有与matplotlib drawstyle相似的功能。

Is there any possibility within pyqtgraph to get the blue graph instead of the red one that is standard method in matplotlib AND pyqtgraph in the following matplotlib example:

在pyqtgraph中是否有可能得到蓝色图形，而不是在matplotlib和pyqtgraph中的标准方法在matplotlib和pyqtgraph中得到的蓝色图形:

import matplotlib.pyplot as plt 
import numpy as np

x = np.arange(0,1,0.1)
y = [0,0,0,2,2,8,9,2,0,0]

plt.plot(x,y,color='red',drawstyle='standard')
plt.plot(x,y,color='blue',drawstyle='steps-post')

plt.show()

So far I did not find a way to create the blue graph in pyqtgraph with the given data x and y.

到目前为止，我还没有找到在pyqtgraph中使用给定的数据x和y创建蓝色图形的方法。

Thanks a lot Regards Michael

非常感谢迈克尔。

1 个解决方案

#1

This is described in the pyqtgraph 'histogram' example. This is the translation:

这是在pyqtgraph 'histogram'示例中描述的。这是翻译:

import pyqtgraph as pg
import numpy as np

x = np.arange(0,1,0.1)
y = [0,0,0,2,2,8,9,2,0,0]
print len(x), len(y)

plt = pg.plot(x,y,pen='r')
curve2 = pg.PlotCurveItem(x,y[:-1],pen='b',stepMode=True)
plt.addItem(curve2)