我有以下使用 numpy 和 bokeh 的小示例脚本:
import numpy as np
import bokeh.plotting as bp
from bokeh.objects import HoverTool
bp.output_file('test.html')
fig = bp.figure(tools="reset,hover")
x = np.linspace(0,2*np.pi)
y1 = np.sin(x)
y2 = np.cos(x)
s1 = fig.scatter(x=x,y=y1,color='#0000ff',size=10,legend='sine')
s1.select(dict(type=HoverTool)).tooltips = {"x":"$x", "y":"$y"}
s2 = fig.scatter(x=x,y=y2,color='#ff0000',size=10,legend='cosine')
s2.select(dict(type=HoverTool)).tooltips = {"x":"$x", "y":"$y"}
bp.show()
问题是悬停工具仅适用于余弦曲线而不适用于正弦曲线。
我知道一种选择是将两个系列绘制在一起并更改余弦数据点的颜色:
import numpy as np
import bokeh.plotting as bp
from bokeh.objects import HoverTool
bp.output_file('test.html')
fig = bp.figure(tools="reset,hover")
x = np.linspace(0,2*np.pi)
y1 = np.sin(x)
y2 = np.cos(x)
x = np.array([x,x]).flatten()
y = np.array([y1,y2]).flatten()
blue = np.array('#0000ff').flatten()
red = np.array('#ff0000').flatten()
colors = np.array([blue.repeat(len(y1)),red.repeat(len(y1))]).flatten()
s1 = fig.scatter(x=x,y=y,color=colors,size=10,legend='sine & cosine')
s1.select(dict(type=HoverTool)).tooltips = {"x":"$x", "y":"$y"}
bp.show()
但后来我松开了第二种颜色的图例条目。
我如何设法将鼠标悬停在两个数据集上并查看相应的工具提示?
谢谢!
最大限度