Bug report #4413

Generating SVG preview takes very long

Added by Paolo Cavallini almost 9 years ago. Updated almost 5 years ago.

Category:Map Composer/Printing
Affected QGIS version:master Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:fixed/implemented
Crashes QGIS or corrupts data:No Copied to github as #:14345


When adding an image to a print layout, the generation of preview from SVG takes a very long time


#1 Updated by Marco Hugentobler almost 9 years ago

Well, the tmore preview directories / files you have, the longer it takes (with only the standard svg dirs enabled, it takes 2 seconds for me here). But the preview generation is postponed until the item dialog shows up and additionally, it is possible to cancel loading of previews.

#2 Updated by Paolo Cavallini almost 9 years ago

Wouldn't it be more appropriate to generate the previews during compilation? In my case it takes several minutes to generate them all, and I suspect things can only get worse as people use more and more symbols. BTW, I think we should organize symbols in groups/tags/folders, otherwise they will be more and more difficult to use.

#3 Updated by Giovanni Manghi almost 9 years ago

  • Target version set to Version 1.7.4

#4 Updated by Paolo Cavallini over 8 years ago

  • Crashes QGIS or corrupts data set to No
  • Target version changed from Version 1.7.4 to Version 1.8.0
  • Affected QGIS version set to master

#5 Updated by Paolo Cavallini about 8 years ago

  • Target version changed from Version 1.8.0 to Version 2.0.0

#6 Updated by Jürgen Fischer over 6 years ago

  • Category changed from 33 to Map Composer/Printing

#7 Updated by Jürgen Fischer about 6 years ago

  • Target version changed from Version 2.0.0 to Future Release - Lower Priority

#8 Updated by Médéric RIBREUX almost 5 years ago

  • Status changed from Open to Feedback

Hello, bug triage...

it seems to be fixed in QGIS 2.13, when I add an image in the composer, the search directories groupbox is displayed nearly instantly.

Could we close this bug ?

#9 Updated by Paolo Cavallini almost 5 years ago

Sorry, I have a very fast machine here, cannot test properly.

#10 Updated by Médéric RIBREUX almost 5 years ago

  • Resolution set to fixed/implemented
  • Status changed from Feedback to Closed
  • % Done changed from 0 to 100

Hello, bug triage...

it needs about 3 seconds on a low CPU (AMD A4-5000 1.5 GHz) to be displayed.

I am closing this bug...

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