段glyph GMapPlot overlay bokeh 0.10.0问题

Question

我在几个月前写的一个脚本有一个问题，这个脚本曾经成功地将片段覆盖到GMapPlots上。这个脚本从那以后就没有改变过，并且在之前被证实可以正常工作（我相信是在0.9.3中）。在

这个例子太冗长了，不能包含在这里，但是我的问题可以用bokeh/examples/glyphs来说明/地图.py例子。修改该脚本以使用GMapPlot无法覆盖段glyph，但对其余部分来说效果很好。我是不是做错了什么？在

from __future__ import print_function

from bokeh.browserlib import view
from bokeh.document import Document
from bokeh.embed import file_html
from bokeh.models.glyphs import Circle
from bokeh.models import (
    GMapPlot, DataRange1d, ColumnDataSource,
    PanTool, WheelZoomTool, BoxSelectTool,
    BoxSelectionOverlay, GMapOptions, Segment, Ray)
from bokeh.resources import INLINE

# JSON style string taken from: https://snazzymaps.com/style/1/pale-dawn
map_options = GMapOptions(lat=30.2861, lng=-97.7394, map_type="roadmap", zoom=13, styles="""
[{"featureType":"administrative","elementType":"all","stylers":[{"visibility":"on"},{"lightness":33}]},{"featureType":"landscape","elementType":"all","stylers":[{"color":"#f2e5d4"}]},{"featureType":"poi.park","elementType":"geometry","stylers":[{"color":"#c5dac6"}]},{"featureType":"poi.park","elementType":"labels","stylers":[{"visibility":"on"},{"lightness":20}]},{"featureType":"road","elementType":"all","stylers":[{"lightness":20}]},{"featureType":"road.highway","elementType":"geometry","stylers":[{"color":"#c5c6c6"}]},{"featureType":"road.arterial","elementType":"geometry","stylers":[{"color":"#e4d7c6"}]},{"featureType":"road.local","elementType":"geometry","stylers":[{"color":"#fbfaf7"}]},{"featureType":"water","elementType":"all","stylers":[{"visibility":"on"},{"color":"#acbcc9"}]}]
""")

xdr = DataRange1d()
ydr = DataRange1d()

现在，如果我调用下面的绘图并继续下面的脚本，它将生成一个由三个圆和线段连接起来的绘图：

^{pr2}$

但是，如果使用以下GMapPlot，则不会显示线段图示符，而只显示圆图示符：

# ADDING SEGMENTS TO THIS PLOT DOES NOT WORK
plot = GMapPlot(x_range=xdr, y_range=ydr, map_options=map_options, title="Austin")

脚本其余部分：

source = ColumnDataSource(
    data=dict(
        lat=[30.2861, 30.2855, 30.2869],
        lon=[-97.7394, -97.7390, -97.7405],
        fill=['orange', 'blue', 'green']
    )
)

segdata = ColumnDataSource(
    data=dict(
        lonend=[-97.7390,-97.7405],
        lonstart=[-97.7394,-97.7390],
        latend=[30.2855,30.2869],
        latstart=[30.2861,30.2855]
    )
)

segment = Segment(x0='lonstart',y0='latstart',x1='lonend',y1='latend',line_color="firebrick",line_width=5)
plot.add_glyph(segdata, segment)

circle = Circle(x="lon", y="lat", size=10, fill_color="fill", line_color="black")
plot.add_glyph(source, circle)

pan = PanTool()
wheel_zoom = WheelZoomTool()
box_select = BoxSelectTool()

plot.add_tools(pan, wheel_zoom, box_select)
overlay = BoxSelectionOverlay(tool=box_select)
plot.add_layout(overlay)

doc = Document()
doc.add(plot)

if __name__ == "__main__":
    filename = "maps.html"
    with open(filename, "w") as f:
        f.write(file_html(doc, INLINE, "Google Maps Example"))
    print("Wrote %s" % filename)
    view(filename)

Plot with Plot()

Plot with GMapPlot()