chart

Hi everyone, I was wondering what is the best way to create modern looking graphs like this one for example: P.S. Is there something different from this? thanks in advance :D

A small bookshop that does the work of the pizza-style graphic of highcharts https://www.highcharts.com/demo/pie-basic It is simple and simple to implement, this is what it looks like in b4a, it can also be implemented in b4j

hello, is there a simple (bullet proof) line chart where i can just Add Data with a Time Stamp and a Name to Monitoing the last 24 hours? i need it to visualize 4 different sensor values. attached my first try and ugly result. at extreme case i have 86400 x 4 collected values each day for...