You turn off aliasing by giving it a value of 1 (which is the default) anti_alias = 1
-tk On Tue, Aug 4, 2020 at 11:18 AM Stephan M. <[email protected]> wrote: > I tried following: > anti_alias = 0 > after systemctl restart weewx.service and wee_reports gives > File "/usr/share/weewx/weeplot/genplot.py", line 217, in render > image.thumbnail((self.image_width / self.anti_alias, self.image_height > / self.anti_alias), Image.ANTIALIAS) > ZeroDivisionError: division by zero > commenting line anti_alias or set it to any value except 0 (tried up to 6) > doesn't help. > > *Next step* > I also backuped database + config files and purged weewx and python3 > completly. After reinstall same issue appears. > > *Last step, but successful* > I added debian oldstable to the apt sources and installed python-pil 4.0.0 > instead of 5.4.1, and now diagrams are generated. > https://www.embedded-engineer.de/weewx/ > How may I help you to find this bug which obviously doesn't concern anyone > else ? > > Thanks > Stephan > > Am Montag, 3. August 2020 22:27:07 UTC+2 schrieb Tom Keffer: >> >> Try turning off the anti-aliasing. >> >> On Mon, Aug 3, 2020 at 8:19 AM Stephan M. <[email protected]> wrote: >> >>> Hi Tom, thanks for reply. >>> The webpage showing the faulty diagrams is here. >>> <https://www.embedded-engineer.de/weewx/> >>> >>> This happens to every image generated. Also the old standard skin show >>> same behaviour. >>> But I tried Belchertown and there isn't such an issue. >>> >>> A reinstallation of weewx and all python3 packages didn't solve the >>> problem. >>> >>> A solution could be to use the Belchertown skin, but the machine running >>> weewx hasn't that much performance and a report takes a longer time and >>> maintenance is very slow. >>> >>> >>> >>> Am Sonntag, 2. August 2020 22:38:11 UTC+2 schrieb Tom Keffer: >>>> >>>> This is a new one for me. >>>> >>>> I agree that it's most likely an issue with pillow or, possibly, an >>>> underlying C library. Does it do this with every image, every time? Or, >>>> just an occasional image? >>>> >>>> Try uninstalling Pillow, then reinstall. >>>> >>>> >>>> >>>> On Sun, Aug 2, 2020 at 1:03 PM Stephan M. <[email protected]> wrote: >>>> >>>>> Hi, I am using a Oregon Scientific WMR88 (WMR100 driver) and the >>>>> Seasons skin which is properly running except that it is generating >>>>> corrupted diagram images. >>>>> Trying to open the images (i.e. daybarometer.png) directly with an >>>>> image viewer shows an error 'bad adaptive filter value'. >>>>> With gimp I am able to open it: >>>>> >>>>> [image: daybarometer.jpg] >>>>> >>>>> The issue appears after updating debian from stretch -> buster and >>>>> from weewx 3.9 to 4.1.1. Maybe an issue with the also updated >>>>> python-pillow >>>>> package. >>>>> Logging shows nothing unusual. >>>>> >>>>> >>>>> *System* >>>>> debian buster on armel (all installed via .deb package, no pip3 >>>>> installed) >>>>> weewx 4.1.1 >>>>> python 3.7.3 >>>>> python3-pil 5.4.1 >>>>> >>>>> *journalctl -xe* with debug=2 >>>>> Aug 02 21:48:00 weewx python3[2497]: wee_reports[2497] DEBUG weewx. >>>>> manager: Daily summary version is 2.0 >>>>> Aug 02 21:48:16 weewx python3[2497]: wee_reports[2497] INFO weewx. >>>>> cheetahgenerator: Generated 8 files for report SeasonsReport in 16.10 >>>>> seconds >>>>> Aug 02 21:48:17 weewx python3[2497]: wee_reports[2497] DEBUG weewx. >>>>> manager: Daily summary version is 2.0 >>>>> Aug 02 21:48:22 weewx python3[2497]: wee_reports[2497] INFO weewx. >>>>> imagegenerator: Generated 15 images for report SeasonsReport in 5.50 >>>>> seconds >>>>> Aug 02 21:48:22 weewx python3[2497]: wee_reports[2497] INFO weewx. >>>>> reportengine: Copied 5 files to /var/www/html/weewx >>>>> Aug 02 21:48:22 weewx python3[2497]: wee_reports[2497] DEBUG weewx. >>>>> reportengine: Running report 'SmartphoneReport' >>>>> Aug 02 21:48:23 weewx python3[2497]: wee_reports[2497] DEBUG weewx. >>>>> reportengine: Found configuration file /etc/weewx/skins/Smartphone/ >>>>> skin.conf for report 'SmartphoneReport' >>>>> Aug 02 21:48:23 weewx python3[2497]: wee_reports[2497] DEBUG weewx. >>>>> cheetahgenerator: Using search list ['weewx.cheetahgenerator.Almanac', >>>>> 'weewx.cheetahgenerator.Station', 'weewx.cheetahgenerator.Cu >>>>> Aug 02 21:48:23 weewx python3[2497]: wee_reports[2497] DEBUG >>>>> weewx.manager: Daily summary version is 2.0 >>>>> Aug 02 21:48:23 weewx python3[2492]: weewx[2492] DEBUG >>>>> weewx.drivers.wmr100: Bad USB report received: [Errno 110] Operation timed >>>>> out >>>>> Aug 02 21:48:24 weewx python3[2497]: wee_reports[2497] INFO >>>>> weewx.cheetahgenerator: Generated 6 files for report SmartphoneReport in >>>>> 1.25 seconds >>>>> Aug 02 21:48:24 weewx python3[2497]: wee_reports[2497] DEBUG >>>>> weewx.manager: Daily summary version is 2.0 >>>>> Aug 02 21:48:25 weewx python3[2497]: wee_reports[2497] INFO >>>>> weewx.imagegenerator: Generated 6 images for report SmartphoneReport in >>>>> 1.42 seconds >>>>> Aug 02 21:48:25 weewx python3[2497]: wee_reports[2497] INFO >>>>> weewx.reportengine: Copied 6 files to /var/www/html/weewx/smartphone >>>>> Aug 02 21:48:26 weewx python3[2497]: wee_reports[2497] DEBUG >>>>> weewx.reportengine: Report 'MobileReport' not enabled. Skipping. >>>>> Aug 02 21:48:26 weewx python3[2497]: wee_reports[2497] DEBUG >>>>> weewx.reportengine: Report 'StandardReport' not enabled. Skipping. >>>>> Aug 02 21:48:26 weewx python3[2497]: wee_reports[2497] DEBUG >>>>> weewx.reportengine: Report 'FTP' not enabled. Skipping. >>>>> Aug 02 21:48:26 weewx python3[2497]: wee_reports[2497] DEBUG >>>>> weewx.reportengine: Running report 'RSYNC' >>>>> Aug 02 21:48:26 weewx python3[2497]: wee_reports[2497] DEBUG >>>>> weewx.reportengine: Found configuration file >>>>> /etc/weewx/skins/Rsync/skin.conf for report 'RSYNC' >>>>> Aug 02 21:48:26 weewx python3[2497]: wee_reports[2497] DEBUG >>>>> weeutil.rsyncupload: rsyncupload: cmd: [['rsync', '--archive', '-- >>>>> stats', '-e ssh -p 221', '/var/www/html/weewx/', 'embedded-engineer. >>>>> de@ >>>>> Aug 02 21:48:27 weewx python3[2497]: wee_reports[2497] INFO weeutil. >>>>> rsyncupload: rsync'd 46 files (431,862 bytes) in 1.15 seconds >>>>> Aug 02 21:48:57 weewx python3[2492]: weewx[2492] DEBUG >>>>> weewx.drivers.wmr100: Bad USB report received: [Errno 110] Operation timed >>>>> out >>>>> Aug 02 21:49:19 weewx python3[2492]: weewx[2492] DEBUG >>>>> weewx.drivers.wmr100: Bad USB report received: [Errno 110] Operation timed >>>>> out >>>>> >>>>> >>>>> *weewx.conf* >>>>> [[SeasonsReport]] >>>>> # The SeasonsReport uses the 'Seasons' skin, which contains >>>>> the >>>>> # images, templates and plots for the report. >>>>> skin = Seasons >>>>> enable = true >>>>> HTML_ROOT = /var/www/html/weewx >>>>> >>>>> >>>>> *skins/Seasons/skin.conf is attached* >>>>> >>>>> Any help is appreciated >>>>> Thanks >>>>> Stephan >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "weewx-user" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/weewx-user/473c2e3b-0e7a-45bb-aa54-11b32a5bf6a1o%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/weewx-user/473c2e3b-0e7a-45bb-aa54-11b32a5bf6a1o%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "weewx-user" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/98465426-96f1-466b-b12e-c4260aeeaf83o%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-user/98465426-96f1-466b-b12e-c4260aeeaf83o%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/67a24929-dc97-417a-a76e-4669e9186e52o%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/67a24929-dc97-417a-a76e-4669e9186e52o%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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