Folium Package in Python

1. Install Folium Package in Python
2. Create a Simple Map Using Folium Package in Python
3. Add Markers to a Map Using Folium Package in Python

This tutorial will introduce the uses of the Python Folium library.

Folium is a library in Python that visualizes the already manipulated data in an interactive leaflet map. We can make different leaflet maps and visualize geospatial data through this library.

Install Folium Package in Python

Before we can utilize its functionalities, we should install Folium first using the following command.

#Python 3.x
pip install folium

Create a Simple Map Using Folium Package in Python

To show any location on the map, we will import the folium library first in our code. Then we will call the Map() method of Folium and pass the location in terms of latitude and longitude.

We can obtain the latitude and longitude of any location from Google. The other argument that we have passed in the following code is zoom_start, which initially specifies the map’s zoom level.

To display the map on the screen, we will write the map object name, my_map in our case.

# Python 3.x
import folium

my_map = folium.Map(location=[24.860966, 66.990501], zoom_start=12)
my_map

Output:

Add Markers to a Map Using Folium Package in Python

To specify or highlight the exact location on the map, we can add a marker on that point, an icon or shape representing a location. Below are the marker types that we can use.

Add a Circular Marker on a Map Using Folium Package in Python

We will use the circleMarker() method to add a circular marker on the map and pass the location, radius, and popup text as arguments.

# Python 3.x
import folium

my_map = folium.Map(location=[24.860966, 66.990501], zoom_start=12)
folium.CircleMarker(
    location=[24.860966, 66.990501], radius=40, popup="My Location"
).add_to(my_map)
my_map

Output:

Add a Parachute Marker on a Map Using Folium Package in Python

A parachute marker is the standard way to represent a location on the map. We will use the Marker() method to add a parachute marker and pass the location and popup text arguments.

# Python 3.x
import folium

my_map = folium.Map(location=[24.860966, 66.990501], zoom_start=15)
folium.Marker([24.860966, 66.990501], popup="My Place").add_to(my_map)
my_map

Output:

Add a Line Between Two Locations on a Map Using Folium Package in Python

If we want to add a line between two locations on the map, we will create two markers, each having their location and popup text specified. Then we will call the PolyLine() method of Folium and pass both locations and line opacity or thickness.

We will see both the locations on a map and a line that connects them in the output. This is helpful when we want to see how far apart the two places are from each other.

# Python 3.x
import folium

my_map = folium.Map(location=[24.860966, 66.990501], zoom_start=12)
folium.Marker([24.860966, 66.990501], popup="Location 1").add_to(my_map)
folium.Marker([24.7077, 66.0501], popup="Location 2").add_to(my_map)
folium.PolyLine(
    locations=[(24.860966, 66.990501), (24.7077, 66.0501)], line_opacity=0.5
).add_to(my_map)
my_map

Output: