Question

我在几个月前写过一个脚本问题，这个脚本曾经成功地将片段叠加到GMapPlots上。该脚本自那以后没有改变，并且之前已经过验证（我相信在0.9.3中）。

这个例子太冗长了，不能包括在这里，但我的问题可以使用bokeh / examples / glyphs / maps.py示例来说明。修改该脚本以使用GMapPlot无法覆盖段字形，但其余部分工作正常。我在这里做错了吗？

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，如果我调用下面的图并继续下面的脚本，它会生成一个包含三个圆圈和连接它们的段的图：

# ADDING SEGMENTS TO THIS PLOT WORKS
plot = Plot(
    title=None, x_range=xdr, y_range=ydr, plot_width=300, plot_height=300,
    h_symmetry=False, v_symmetry=False, min_border=0, toolbar_location=None)

但是，如果我使用以下GMapPlot，则不会出现段字形，只有圆形字形：

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

其余的剧本：

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()

段字形GMapPlot叠加问题 - 散景0.10.0

0 个答案: