697: Large time series make Wave sluggish

[bluemodel-bot]

Original bug ID	697
Reported by	froehlich on 2016-11-07
Affects version	1.6
Component	Allgemein
Severity	enhancement
Priority	P3
Milestone	---
Assigned to	froehlich
Status	ASSIGNED

Comments:

froehlich on 2016-11-07:

When a large time series is loaded into the chart, Wave behaves very sluggishly. Any operations on the chart take a few moments until they respond.

One way to improve this could be to load fewer data points into the chart. This would have to be zoom-dependent, though.

froehlich on 2016-11-13:

I noticed that performance significantly improves when you hide the overview chart. Loading fewer data points into the overview chart could be a simple solution without having to reduce the accuracy of the main graph.

froehlich on 2021-08-26:

in v1.9.1 (9b08f25) the speed of displaying lines in the overview chart was improved by switching to the line style FastLine.

[jamaa]

Could look into the downsampling methods available in TeeChart: https://www.steema.com/support/viewtopic.php?f=4&t=17990