Opened 13 years ago

Last modified 13 years ago

#3599 new bug

Value Tool causes very low gui responsivity with TMS layers

Reported by: borysiasty Owned by: rblazek
Priority: major: does not work as expected Milestone: Version 1.7.0
Component: Rasters Version:
Keywords: ValueTool tms gui lag Cc: borysiasty
Must Fix for Release: No Platform: Debian
Platform Version: Awaiting user input: no

Description

  1. Load a TMS layer (e.g. ​http://www.gdal.org/frmt_wms_openstreetmap_tms.xml )
  2. Choose the Zoom In tool
  3. Move the cursor between the mapCanvas and outside. The cursor switches between the magnifier and the arrow with about 3 sec lag on my machine.
  4. Try to use the rectangle zoom. Almost impossible.

Can anybody confirm?

Change History (4)

comment:1 by borysiasty, 13 years ago

More generally: whole gui is dramatically slow when the cursor is above the mapCanvas and within ~ 3 sec after it leaves. Well visible also with the coordinates display in the status bar.

comment:2 by rblazek, 13 years ago

With ValueTool on?

comment:3 by borysiasty, 13 years ago

Component: Rasters → Python plugins and bindings
Keywords: ValueTool added
Owner: changed from nobody to ghislainp
Summary: Very low gui responsivity with TMS layers → Value Tool causes very low gui responsivity with TMS layers

Yes, exactly! It's caused by Value Tool. And seems I was wrong a bit - mouse cursor has to be over data extent (not just anywhere in the map canvas) to cause the issue.

comment:4 by rblazek, 13 years ago

Component: Python plugins and bindings → Rasters
Owner: changed from ghislainp to rblazek

The problem is in gdal provider (anf gdal WMS/TMS provider), I believe. The ValueTool just discovered the problem. So I take it.

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