Interactive plot

[femtotrader]

Instead of creating a png file and display it you might try to create an interactive plot.

bokeh http://bokeh.pydata.org/ could help

Other solution is to output a JSON and have a pure JavaScript solution for plotting. Possible candidates could be:

• HighCharts http://www.highcharts.com/
• D3JS https://d3js.org/
• RGraph https://www.rgraph.net/

[easytrader]

Interactive plot might be a good idea in the future.