Thought I'd try installing, found some problems with the case of 
PolarWindPlot, to do with names & cases which were easy to fix.  I changed 
the report type to scatter in the skin.conf file.

However whilst it generated a couple of scatter PNGs, they didn't look 
meaningful and it hung eating up processor time.

Oct 14 11:46:18 sgcweather wee_reports[5937]: reportengine: Running report 
PolarWindPlot
Oct 14 11:46:19 sgcweather wee_reports[5937]: reportengine: Found 
configuration file /home/weewx/skins/PolarWindPlot/skin.conf for report 
PolarWindPlot
Oct 14 11:46:21 sgcweather wee_reports[5937]: cheetahgenerator: Generated 1 
files for report PolarWindPlot in 2.50 seconds
Oct 14 11:46:22 sgcweather wee_reports[5937]: polarwindplot: petal_width 
out of range '16', using default '0' instead
Oct 14 11:46:23 sgcweather wee_reports[5937]: polarwindplot: petal_width 
out of range '16', using default '0' instead


I found the petal_width in weewx.conf, changed it from 16 to 1 and reran 
the report.  It still hung - this is /var/log/syslog for that run for the 
PolarWindPlot:

Oct 14 12:06:44 sgcweather wee_reports[7530]: reportengine: Running report 
PolarWindPlot
Oct 14 12:06:44 sgcweather wee_reports[7530]: reportengine: Found 
configuration file /home/weewx/skins/PolarWindPlot/skin.conf for report 
PolarWindPlot
Oct 14 12:06:47 sgcweather wee_reports[7530]: cheetahgenerator: Generated 1 
files for report PolarWindPlot in 2.72 seconds

So I've commented it out of weewx.conf for now.



On Friday, 12 October 2018 11:05:26 UTC+1, gjr80 wrote:
>
> Late last year Neil and myself were collaborating on a revised version of 
> my stacked windrose generator that would be able to produce 4 different 
> polar wind plots. One plot is what I call the traditional windrose and the 
> others we called trail, spiral and scatter plots. Unfortunately, I can't 
> remember for the life of me exactly what these 3 plots did (other than the 
> obvious). I looked just now but can't put my hands on any of the sample 
> plots we had working.
>
> Unfortunately again, Neil started a new job late last year and I had other 
> things come up and we did not take the new generator any further. I seem to 
> remember we basically had it working and just needed to fix a number minor 
> issues before it could be released as a WeeWX extension. I am happy to have 
> a look at it when I get home on 22nd and see if the scatter plot is what 
> you seek. It certainly should not take too much extra work to get the whole 
> thing tidied up and out the door.
>
> Not much to see other than code but the repo link is 
> https://github.com/gjr80/weewx-polarwindplot
>
> Gary
>
>

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