Hye Py peeps,

I have a web app made using plotly dash. In it I have a heatmap which is a subplot to a scatter plot.

The heatmap has x axis of chemical shift (number), y axis of time (datetime) and intensity of a colour (number). The plot works fine for datasets with not too many increments per hour but the minute this increases, I get issues. Even when I downsample data.

I get missing data on the plot, and then some of the data streched over long periods of time, it just looks wierd.

I also have the code running on a different machine where I can plot data which I cannot plot on my main machine even though my main machine has higher computing power but even the other one dosen’t work for some data.

I tried to change to go.heatmapgl which uses hardware acceleration to make a heatmap, but here I do get a plot, but white lines inbetween each plot value!

I would like to figure out the root cause and fix it becuase this is very essential to my workflow and I have just found this issue when working on some data for a publication that is due ASAP.

My code: https://github.com/fionnf/AkkuSpin

Heatmap of desired style: https://photos.app.goo.gl/erVA427sRsz2gwT46

Heatmap when having issues: https://photos.app.goo.gl/XEPfQ7tV5kaJjKhh7

Heatmapgl with lines: https://photos.app.goo.gl/HpWm29HeJkoAK99F8

I woudl love your help!

I tried downsampling: no help
Tried smooting: did not work
Try interpolation: Dosen’t work.