Python Google Map Customizing Width & Height

Python Google Map  Customizing Width & Height –  in the previous article we had

introduction to Python Google Map with gmaps, also we have created some examples of Google Map

in Python programming language, in this article we are going to talk about customizing width

and height of Google Map, also we are going to create heatmap.

 

 

 

Check the previous article on Python Google Map

1: Python Google Map Introduction With gmaps 

 

 

 

So the layout of a map figure is controlled by passing a layout argument. This is a dictionary of

properties controlling how the widget is displayed.

 

 

 

 

After runing the code this will be the result.

Python Google Map Customizing Width & Height
Python Google Map Customizing Width & Height

 

 

 

The parameters that you are likely to want to tweak are:

  • width: controls the figure width. This should be a CSS dimension. For instance, 400px will create a figure that is 600 pixels wide, while 100% will create a figure that takes up the output cell’s entire width. The default width is 100%.
  • height: controls the figure height. This should be a CSS dimension. The default height is 400px.
  • border: Place a border around the figure. This should be a valid CSS border.
  • padding: Gap between the figure and the border. This should be a valid CSS padding. You can either have a single dimension (e.g. 2px), or a quadruple indicating the padding width for each side (e.g. 1px 2px 1px 2px). This is 0 by default.
  • margin: Gap between the border and the figure container. This should be a valid CSS margin. This is 0 by
    default.

 

 

 

 

Creating Heatmaps

Heatmaps are a good way of getting a sense of the density and clusters of geographical events.

They are a powerful tool for making sense of larger datasets. We will use a dataset recording all

instances of political violence that occurred in Africa between 1997 and 2015. The dataset comes

from the Armed Conflict Location and Event Data Project. This dataset contains about 110,000

rows.

 

 

 

 

Run the complete  code and this will be the result.

Python Google Map Creating Heatmap
Python Google Map Creating Heatmap

 

 

 

 

Preventing Dissipation on Zoom 

If you zoom in sufficiently, you will notice that individual points disappear. You can prevent this

from happening by controlling the max_intensity setting. This caps off the maximum peak intensity.

It is useful if your data is strongly peaked. This settings is None by default, which implies no

capping. Typically, when setting the maximum intensity, you also want to set the point_radius

setting to a fairly low value. The only good way to find reasonable values for these settings is to

tweak them until you have a map that you are happy with.:

 

To avoid re-drawing the whole map every time you tweak these settings, you may want to set them

in another notebook cell:

 

Python Heatmap Design
Python Heatmap Design

 

Google maps also exposes a dissipating option, which is true by default. If this is true, the radius of

influence of each point is tied to the zoom level: as you zoom out, a given point covers more physical

kilometres. If you set it to false, the physical radius covered by each point stays fixed. Your points

will therefore either be tiny at high zoom levels or large at low zoom levels.

 

 

 

Setting Color Gradient and Opacity For Map

You can set the color gradient of the map by passing in a list of colors. Google maps will interpolate

linearly between those colors. You can represent a color as a string denoting the color (the colors

allowed by this).

 

 

 

 

If you need more flexibility, you can represent colours as an RGB triple or an RGBA quadruple.

 

 

 

 

 

 

Also you can watch the complete video for this article 

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