Bug 322790

Summary:	Optimise Satellites painting
Product:	[Applications] marble	Reporter:	Thibaut Gridel <tgridel>
Component:	general	Assignee:	Thibaut Gridel <tgridel>
Status:	RESOLVED FIXED
Severity:	task
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Thibaut Gridel 2013-07-24 20:53:27 UTC

Satellites plugin offers to display tracks for many objects orbiting around planets.

Current painting for the track happens whenever the satellite is displayed, only swapping the pen style to toggle visibility. This is a perfo hit when many satellites are visible.

The task consists in finding another option to toggle visibility, and spare painting when it's not needed.
Alternatives could be to anywhere between calculating the track only when visibility is needed,  to simply calling the GeoTrackGraphicsItem::paint() from the GeoGraphicsScene for the needed tracks.

Reproducible: Always

Actual Results:  
Every GeoDataTrack is painted

Expected Results:  
Only the visible tracks are rendered and GeometryLayer painting is reduced

Comment 1 Thibaut Gridel 2014-01-09 18:37:12 UTC

Commit 74f84848d fixed this issue.