Timed Based Graph Plotting Python Django Using Firebase - javascript

I am using Django to make a dashboard to show sensor data.
I am using chart.js for that
I am retrieving sensor data of two days or less only.
The problem is that how can I divide my graph for it.I think it might be possible using python time library or Django or something like that if so kindly suggest me some way to do it.
I think that if java script can help us that will be great too.
I just want data parsing based on time to plot and view it nicely.

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Connecting to a database to create a graph

Currently, I have connected to my database in MYSQL using JSP code. However, my next step would be to use something like Plotly.js to create a graph. However, I can't seem to be able to transfer values that I retrieve through JSP into javascript where Plotly is to create the graph. I also want my graph to be dynamic in the sense that I can run my program and it'll update it with the changes to the database. I hear that transferring values from JSP to javascript isn't recommended so I was wondering what is an efficient strategy to solve my problem?

JS based NVD3 chart in java ee with jsf bad idea?

I want to implement a xhtml Page in my Java EE project, which will show data from a db. The chart I had an eye one was NVD3 charts, which is based on java script.
The implementation I had in mind was like this:
User can fill in textfields with a "from-date" and a "to-date" to set the date-range where data from the database should be collected. The collected data will then be marshalled into JSON format and the chart created based on the data. Here I somehow have to get the marshalled data from Java to the JS function.
I guess I could this get to work, I am quite a fan of the NVD3 charts but somehow this mixing of JavaEE with JSF and javascript seems bad practice to me.
I wanted to know if this is kind of a bad idea to do and what you would advise me to do here?
Thanks in advance

Auto generating graph for website

I'm using java spring for backend of my website. I need to add some auto generating graphs to it. But I'm not sure for what I should look for. Should I use a Javascript library or can I do it in java as a backend function? This is my first time using this functionality.
P.S.
I have to deal with a often updating database to fetch data for those graphs.
Check this answer, I would suggest to go with option 2 and use a javascript library like highcharts.
Plot Graph In web application

How to pull (fetch) data from a sheet or an object from QlikSense?

My company is using QlikSense 3.0 as a backbone for all their Business Intelligence activities. As it turns out one of the graphs (HeatMap) is built using Angular and we want to keep the same view. I was hoping if there is a way we can fetch data from the QlikSense HeatMap graph and just use the same data to render the existing view.
Can anyone help me understand how to fetch data from existing graphs in QlikSense using any API?
I would suggest you to take a look at the Qlik Sense Engine API documentations
You can access the Engine via Java Script/Node JS or ASP.NET
If you want to get the data outside QS then Node JS/.NET are you options (i think someone build and Python library but its 3rd party one)

Get images from Highcharts PHP Laravel

Good day, folks.
I am making something like CRM in Laravel, where users can see graphs and other cool stuff by Highcharts (based on their statistics). I also want to send them statistics each month in PDF (on email).
https://github.com/barryvdh/laravel-snappy is great at making PDF.
However, then comes the problem: I want to include images from Highcharts to these PDF's. But Highcharts is a JS library. And it really provides function for exporting images from graphs.
So really the question is: 'How can I (inside Laravel/PHP) get images, which are created by JS?'
Maybe I must run also JS server like Node.js (I don't know, haven't experience with it) and somehow get images from it?
You will need to save your images generated by Highcharts with the export module (http://www.highcharts.com/docs/export-module/export-module-overview).
Once the image is saved in the server, then you can access them using PHP.
I hope it helps you!

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