'x_range'散景Gmap错误的值无效

Question

The code below is giving me the following error:

ValueError: Invalid value for 'x_range', MapPlot ranges may only be Range1d, not data ranges

I'm almost certain there's nothing wrong with the code considering I had it working with no errors up until today.

I don't think this is relevant, but it stopped working after I ran the following in my command terminal:

sudo lsof -t -i tcp:5000 -s tcp:listen | sudo xargs kill

I restarted my computer several times (in hopes of reseting the ports) but that hasn't worked either.

My code is below:

from bokeh.models import (
   GMapPlot, GMapOptions, ColumnDataSource, Circle, DataRange1d, PanTool, 
   WheelZoomTool, BoxSelectTool
)
from bokeh.io import output_file, show, output_notebook

output_notebook()


map_options = GMapOptions(lat=30.29, lng=-97.73, map_type="roadmap", zoom=11)

plot = GMapPlot(
x_range=DataRange1d(), y_range=DataRange1d(), map_options=map_options
)

plot.title.text = "Austin"


plot.api_key = "INSERT PERSONAL GOOGLE API KEY"


completed_lats = [30.265872,30.2900002]

completed_longs = [-97.749270,-97.733322]

completed_source = ColumnDataSource( data=dict(
    lat=completed_lats,
    lon=completed_longs,))

completed_dots = Circle(x="lon", y="lat", size=50, fill_color="blue",
                        fill_alpha=0.1, line_color=None)
plot.add_glyph(completed_source, completed_dots)


plot.add_tools(PanTool(), WheelZoomTool(), BoxSelectTool())

show(plot)

Answer 1

There is in fact a problem with the code, it is this:

plot = GMapPlot(

    x_range=DataRange1d(), y_range=DataRange1d(), # BAD

    map_options=map_options
)

Exactly as the message states, only Range1d can be used with GMapPlot . This is because unlike regular Bokeh plots, Google Maps maintains complete control of the plot's axes dimensions. This is inconsistent with using a DataRange1d , because those also try to control the axes dimensions, which can lead to unpredictable and undesirable results.

There was a time before Bokeh checked for this, and would allow DataRange1d to be passed. Once it was discovered that combination was causing problems, a check was added to explicitly disallow it. You just need to use a Range1d instead (you don't need to set start or end ):

plot = GMapPlot(

    x_range=Range1d(), y_range=Range1d(), # GOOD

    map_options=map_options
)

However, I should also point you to the gmap function, which makes creating Google Maps plots much simpler . With that it is much like figure in that a reasonable default plot is created automatically, no need to create and add ranges at all. It was announced in version 0.12.5 .