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The error reads

The color of the scatter plot has only the first value obtained, so only the first line is drawn. To match the color of the scatter plot, we will convert it to RGBA, set it as the line color, and draw the graph. Also, I don't think the alpha is necessary since it specifies the transparency. The intended graph is to match the colors of the scatterplot and the line graph, and I modified the code to understand that the intent is to create a graph that overlaps them.

To get a rounded look, the mesh can be subdivided into more angles. Note that np.linspace(0, 2 * np.pi, 10) creates 9 bins (and 10 boundaries). For the subdivided mesh you need e.g. 90 bins, so 91 boundaries. The histogram values need to be repeated by the same factor.

The code below uses a different colormap for debugging purposes. An optional grid highlights the original boundaries.

This modified awk script from my last answer should work for you:

You can grab the position of the ax and use it to create new axes for the colorbars. Here is an example:

In any environment that supports native classes (e.g. ES6 and onwards), constructors are automatically made if not provided: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/constructor

If you don't provide your own constructor, then a default constructor will be supplied for you. If your class is a base class, the default constructor is empty.

For environments that don't support native classes (e.g. ES5 and prior), TypeScript instead does the work of generating a default constructor for you:

From the playground:

use following code: Hope it will match your problem statment.

Notice that the savefig has transparent option:

https://matplotlib.org/3.1.1/api/_as_gen/matplotlib.pyplot.savefig.html

How to export plots from matplotlib with transparent background?

You are getting an array at the top level instead of a JSON object. You should use JSONArray instead of JSONObject to parse the inital response object.