Lua Line Chart - Multiple Lines

[HHerrgesell]

Hi,

is it possible to draw multiple lines in one Chart (maybe in different Colors with Legend)?
It would be very cool to draw ex. multiple Voltages or Currents in a single chart to compare.

And what's about a custom/high res scale, to make exact reading easier?

But I think that should be a optional setting, to keep it as easy as it currently is

Thanks four your work!

[lundmar]

Hi @HHerrgesell,

It is a good idea. One would have to extend the chart library API (https://github.com/lundmar/gtkchart) to support writing to multiple line numbers with legends and map corresponding functions to lua.

Unfortunately, I don't have time to implement such features but I invite anyone to help implement such feature.

Until then, one will have to use the lxi_log_* API and simply write the data to .csv and then manually import the data into multiple lines in your favorite spreadsheet editor.