JavaFX LineChart Performance

Question

I\'ve been trying to improve the performance of LineChart in JavaFX but without great success. I also have found that this seems to be a common problem that some programmers hav

Answer 1

Hope this comment is not in vain or comes too late:

Some of the performance limitations are intrinsic to the JavaFX implementation: ie. many operations being computed within the JVM rather than being pushed to the underlying OpenGL-based HW, data points being excessively large Nodes drawn within a scene graph rather than on-the-fly data reduction and usage of Canvas... to name a few. Unfortunately, we found that many of these issues (and bugs) could not be solved without larger workarounds (e.g.final API methods) around the original JavaFX Chart API.

We thus developed/re-designed (for our in-house application), open-sourced, and -- in the hope that others find it useful or want to contribute -- published our JavaFX-based charting library at GitHub:

https://github.com/GSI-CS-CO/chart-fx

Its primary focus: performance optimised real-time data visualisation at 25 Hz update rates for data sets with a few 10 thousand up to 5 million data points common in digital signal processing applications. Performance plots, examples and documentation are available at GitHub:

https://github.com/GSI-CS-CO/chart-fx/raw/master/docs/pics/chartfx-example1.png https://github.com/GSI-CS-CO/chart-fx/raw/master/docs/pics/chartfx-performance1a.png https://github.com/GSI-CS-CO/chart-fx/raw/master/docs/pics/chartfx-performance1.png

The motivations why a new JavaFX library was necessary and performance comparisons w.r.t. other Java and C++/Qt based libraries have been presented at IPAC'19: https://ipac2019.vrws.de/papers/thprb028.pdf

N.B. this is my first post, thus no in-line images