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Python gmplot to add google map on a web page

There are several ways to display Google Maps on a website. The simplest way to display Google Maps is to use HTML and JavaScript. But, what will you do if there is a need to render the Google map using Python. In this article, you will learn how to display Google Maps on a website and render all the specified data on top of Google Maps.





Python provides the gmplot module to fulfil this need. The gmplot is a matplotlib-like interface to generate HTML and Javascript and display all the additional data on the Google map. This library has several plotting methods to create exploratory map views, like highlighting a street, a building, a specific section, or other area of interest on a map.





Install Python gmplot module

Here is the command to install gmplot using the pip tool.

pip install gmplot

On successful installation, it returns something like this-

Successfully built gmplot
Installing collected packages: gmplot
Successfully installed gmplot-1.2.0

So, the latest version gmplot-1.2.0 is installed onto our computer.



Get your Google map API key

To embed the Google map on a web page, we first need to generate the Google API. For this, first login to your Gmail account, go to 'Google API Console' and follow the instructions to get an API key. For more details, click on the following link-

https://developers.google.com/maps/documentation/embed/get-api-key



Python gmplot basic code

Here is the basic code to render a Google map using the Python gmplot module. Make sure to replace YOUR_API_KEY with your API key.

# Import gmplot library.
from gmplot import *

# First two arguments are latitude and longitude
# Third argument is the zoom level
gmap = gmplot.GoogleMapPlotter(28.7041, 77.1025, 15)

# Google API Key
gmap.apikey = "YOUR_API_KEY"

# Set the location to save your file.
gmap.draw( "C:\\Python37\\Scripts\\projects\\googlemap.html" )
Python Google Map



Show scattered points on map

In Google maps, scattered points are used to show various locations. The Python gmplot provides a scatter() method to represent this. In the given example, we have passed the desired coordinates to the scatter.

# Import gmplot library.
from gmplot import *

latitude_list = [ 28.530461, 28.530160, 28.544034, 28.524160, 28.520541]
longitude_list = [ 77.222742, 77.202315, 77.206435, 77.192372, 77.202157]

# First two arguments are latitude and longitude
# Third argument is the zoom level
gmap = gmplot.GoogleMapPlotter(28.530914, 77.211756, 15)

gmap.scatter(latitude_list, longitude_list, '#0000A0', size=90, marker=False)# Google API Key
gmap.apikey = "YOUR_API_KEY"

# Set the location to save your file.
gmap.draw( "C:\\Python37\\Scripts\\projects\\googlemap.html" )
Python Google Map



Python gmplot highlight area

Sometimes, we need to show a specific area on a Google map. Here, we have used the polygon() method to highlight a specific area on the Google map. For this, we have specified the additional coordinates to plot the polygon.

# Import gmplot library.
from gmplot import *

latitude_list = [ 28.530461, 28.530160, 28.544034]
longitude_list = [ 77.222742, 77.202315, 77.206435]

# First two arguments are latitude and longitude
# Third argument is the zoom level
gmap = gmplot.GoogleMapPlotter(28.530914, 77.211756, 15)

gmap.scatter(latitude_list, longitude_list, 'red', size = 12)
gmap.polygon(latitude_list, longitude_list, color = 'cornflowerblue')

# Google API Key
gmap.apikey = "YOUR_API_KEY"

# Set the location to save your file.
gmap.draw( "C:\\Python37\\Scripts\\projects\\googlemap.html" )
Python Google Map



Python Generate Heat Map

A heat map uses a system of color coding to show the locations. The given code shows the specified areas of interest on the map.

# Import gmplot library.
from gmplot import *

latitude_list = [ 28.530461, 28.530160, 28.544034, 28.524160, 28.520541]
longitude_list = [ 77.222742, 77.202315, 77.206435, 77.192372, 77.202157]

# First two arguments are latitude and longitude
# Third argument is the zoom level
gmap = gmplot.GoogleMapPlotter(28.530914, 77.211756, 15)

gmap.heatmap(latitude_list, longitude_list)# Google API Key
gmap.apikey = "YOUR_API_KEY"

# Set the location to save your file.
gmap.draw( "C:\\Python37\\Scripts\\projects\\googlemap.html" )
Python Google Map



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