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Bug #1932

Suboptimal Qwt replotting in QML PlotItem

Added by 0xd34df00d over 5 years ago. Updated over 5 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
Core
Target version:
Start date:
05/04/2015
Due date:
% Done:

100%

Estimated time:
3.00 h
Reported in:
master

Description

QwtPlot is initialized at every replot, which takes around ⅔ of painting time.

STR:

Expected result:
Cached & saved plot.

Actual result:
Plot reinitializing on each replot.

Note the spikes on the attached screenshot in the main thread.

System information:
LeechCraft 0.6.70-3273-g1ad72c2
Built with Qt 5.4.1, running with Qt 5.4.1
Running on: Gentoo/Linux x86_64 4.0.0-pf1 #1 SMP PREEMPT Sat Apr 25 04:04:38 MSK 2015


Files

sb2_plot_spikes.png (90.8 KB) sb2_plot_spikes.png 0xd34df00d, 05/04/2015 01:42 AM
#1

Updated by 0xd34df00d over 5 years ago

  • Estimated time set to 3.00 h
  • Target version set to 0.6.75
  • Status changed from New to Assigned
#2

Updated by 0xd34df00d over 5 years ago

  • % Done changed from 0 to 100
  • Status changed from Assigned to Resolved
#3

Updated by 0xd34df00d over 5 years ago

  • Status changed from Resolved to Closed

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