How to draw a circle of 500m away from a point on a map? or how to highlight all connected ways?

Specific Domains Visualization
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1

Is it possible to draw a circle around a coordinates? I knew that with folium one can plot a points on a map:

using OpenStreetMapX
using PyCall

points = LLA(43.658813, -79.397574, 0.0)



using PyCall
flm = pyimport("folium") #note that this requires folium to be installed
m = flm.Map()

flm.CircleMarker((point.lat, point.lon),
        tooltip="Here is the Fields Institute"
    ).add_to(m)
MAP_BOUNDS = [ Tuple(m.get_bounds()[1,:].-0.005), Tuple(m.get_bounds()[2,:].+0.005)]


m.fit_bounds(MAP_BOUNDS)

m

This shows the map and the points. How to make a circle of 500m big around this point? Or is it possible to highlight all highway roads that are connedted to this point up until 500 meter away from it?

2

isn’t that a pure python question? folium is not a Julia package

1 Like
3

@jling I’m not familir with folium. I guess it’s a python package. But Julia has pyimport
Indeed it makes no different for me whether follium or osmx itself. I’m curious to know how to draw a circle around a point or identify and highlite all ways crossing that points.

4

An example with 5000 km radius

using GMT

coast(region=:global, proj=:eqc, coast=true)
plot!([-9 39], symbol=(symb="Ellipse", size="5000k"), fill="lightgreen@50", show=true)

GMTjl_j
GMTjl_j1816×913 73.4 KB

4 Likes
5

think about what’s the implication of this, because Julia has pyimport, Julia need to answer all python’s usage questions? I’m just saying you’re using a Python package so Julia discourse is likely not the most helpful place to ask usage question.

OTOH, if you’re willing to switch to a Julia package, this is a great place to ask questions

2 Likes
6

Yes @jling you are right. Thanks :slight_smile: