Slow opening due to Background Image

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Slow opening due to Background Image - Files are opening very slowly when there is a background image

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Andac Lulec		#1 Posted : 30 October 2018 19:04:03(UTC)
Rank: Newbie Groups: Registered Joined: 21/08/2018(UTC) Posts: 3		Hi, I am using the SMath for a while, and I really like it. First of all, I would like to thank you for all your efforts. After I started to using latest version (0.99 - 6839), my files with background images are opening very slowly. Also after the file is opened, any action that I make takes longer than usual. I used the same background image with the older versions but I didn't have the same problem. I am attaching the same file with and without the background image. In my computer, it takes to 10.673 sec to open the file with the background image, and it takes less than a second when there is no background image. BackgroundTest_nobackground.sm (17kb) downloaded 16 time(s). BackgroundTest.sm (2,204kb) downloaded 18 time(s). Edited by moderator 06 November 2018 23:08:41(UTC) \| Reason: marked as Fixed


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PompelmoTell		#2 Posted : 30 October 2018 19:24:16(UTC)
Rank: Advanced Member Groups: Registered Joined: 23/12/2011(UTC) Posts: 319 Location: italy Was thanked: 109 time(s) in 93 post(s)		I opened your files with the latest beta of Smath. The slowdown is much more modest than what you have indicated. I note the size of the two files that the background image is very heavy (about 2 Mb ) and from what I see does not seem justified for the background you get: I think you can do a reduction operation (externally to smath) and optimize the file sergio


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Andrey Ivashov		#3 Posted : 30 October 2018 19:47:42(UTC)
Rank: Administration Groups: Developers, Registered, Knovel Developers, Administrators, Advanced Member Joined: 11/07/2008(UTC) Posts: 1,616 Was thanked: 1978 time(s) in 666 post(s)		Hello. Workaround suggested by Sergio works for me. In addition I would suggest to use the latest features implemented in SMath Studio: Header/Footer and Full page background together with correct margins. Here is what I get as a result: BackgroundTest_mod.sm (398kb) downloaded 29 time(s). Regarding performance - I will fix it soon. Best regards.
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2 users thanked Andrey Ivashov for this useful post.		on 30/10/2018(UTC), on 30/10/2018(UTC)
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Andac Lulec		#4 Posted : 30 October 2018 20:15:13(UTC)
Rank: Newbie Groups: Registered Joined: 21/08/2018(UTC) Posts: 3		Thanks for your replies. I will try Andrey's file. But just for future reference, I downloaded an older version (0.99 6671) and tested another file which is larger (11 pages, same background image, similar amount of calculation per page) it is opened less than a second. Please don't get me wrong, besides the things that I did not do in an optimal way, I just wanted to let you now there is an interesting performance issue. Thank you very much again for your quick replies. Best regards.


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Jean Giraud		#5 Posted : 31 October 2018 00:17:02(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Originally Posted by: Andac Lulec ... files with background images ... I guess I don't understand what is a "background image" in your demo. 2 MB for those 3 gadgets ... Oh !


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Andrey Ivashov		#6 Posted : 31 October 2018 09:30:23(UTC)
Rank: Administration Groups: Developers, Registered, Knovel Developers, Administrators, Advanced Member Joined: 11/07/2008(UTC) Posts: 1,616 Was thanked: 1978 time(s) in 666 post(s)		Jean, this is just an example. User may want to use image with even more resolution because of different reasons (i.e. requirements in the company). The main question is that SMath Studio should be prepared for such situations. So, it is something to be done in any case. Best regards.
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1 user thanked Andrey Ivashov for this useful post.		on 31/10/2018(UTC)
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Andrey Ivashov		#7 Posted : 06 November 2018 23:05:00(UTC)
Rank: Administration Groups: Developers, Registered, Knovel Developers, Administrators, Advanced Member Joined: 11/07/2008(UTC) Posts: 1,616 Was thanked: 1978 time(s) in 666 post(s)		Performance issue fixed in the latest stable version. Best regards.
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2 users thanked Andrey Ivashov for this useful post.		on 06/11/2018(UTC), on 06/11/2018(UTC)
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Andac Lulec		#8 Posted : 07 November 2018 00:49:12(UTC)
Rank: Newbie Groups: Registered Joined: 21/08/2018(UTC) Posts: 3		Originally Posted by: Andrey Ivashov Performance issue fixed in the latest stable version. Best regards. Thanks a lot Andrey. It works great


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