Thanks for your exceptionally detailed query! Unfortunately, I can't
diagnose anything related to Docker, or your unusual configuration. I
assume you are using the Seasons skin. Some thoughts:

Any particular reason why you're trying to use the interceptor driver,
rather than the native GW1000 driver <https://github.com/gjr80/weewx-gw1000>
?

Did you change anything in skin.conf?

The problem seems to be around the drawing of the day/night transition
bands. Does it work if you set option "show_daynight" in skin.conf to False?

It would be useful to see some values in _renderDayNight in genplot.py. The
following should do it:

===================================================================
diff --git a/bin/weeplot/genplot.py b/bin/weeplot/genplot.py
--- a/bin/weeplot/genplot.py (revision
b5a79042fb5017c8c0d342e957ae1fa98040bd94)
+++ b/bin/weeplot/genplot.py (date 1680537716331)
@@ -259,6 +259,9 @@
         """Draw vertical bands for day/night."""
         (first, transitions) = weeutil.weeutil.getDayNightTransitions(
             self.xscale[0], self.xscale[1], self.latitude, self.longitude)
+        print(f"In _renderDayNight(), self.yscale = {self.yscale}")
+        print(f"latitude={self.latitude}, longitude={self.longitude}")
+        print(f"first={first}, transitions={transitions}")
         color = self.daynight_day_color \
             if first == 'day' else self.daynight_night_color
         xleft = self.xscale[0]
===================================================================

-tk


On Mon, Apr 3, 2023 at 4:18 AM c s (224) <[email protected]>
wrote:

> Hello,
>
> I have just installed weewx as described here:
> https://weisser-zwerg.dev/posts/ecowitt-gw2000-weewx-docker
>
> And I run into an error that prevents the images from being drawn:
>
> weewx-weewx-1      | Apr  3 13:11:03 weewx[20] ERROR weewx.reportengine:
>         ****  Generator terminated
> weewx-weewx-1      | Traceback (most recent call last):
> weewx-weewx-1      |   File "/home/weewx/bin/weewx/reportengine.py", line
> 197, in run
> weewx-weewx-1      |     obj.start()
> weewx-weewx-1      |   File "/home/weewx/bin/weewx/reportengine.py", line
> 385, in start
> weewx-weewx-1      |     self.run()
> weewx-weewx-1      |   File "/home/weewx/bin/weewx/imagegenerator.py",
> line 42, in run
> weewx-weewx-1      |     self.gen_images(self.gen_ts)
> weewx-weewx-1      |   File "/home/weewx/bin/weewx/imagegenerator.py",
> line 114, in gen_images
> weewx-weewx-1      |     image = plot.render()
> weewx-weewx-1      |             ^^^^^^^^^^^^^
> weewx-weewx-1      |   File "/home/weewx/bin/weeplot/genplot.py", line
> 222, in render
> weewx-weewx-1      |     self._renderDayNight(sdraw)
> weewx-weewx-1      |   File "/home/weewx/bin/weeplot/genplot.py", line
> 266, in _renderDayNight
> weewx-weewx-1      |     sdraw.rectangle(((xleft,self.yscale[0]),
> weewx-weewx-1      |   File "/home/weewx/bin/weeplot/utilities.py", line
> 442, in rectangle
> weewx-weewx-1      |     self.draw.rectangle(box_scaled, **options)
> weewx-weewx-1      |   File
> "/opt/venv/lib/python3.11/site-packages/PIL/ImageDraw.py", line 294, in
> rectangle
> weewx-weewx-1      |     self.draw.draw_rectangle(xy, fill, 1)
> weewx-weewx-1      | ValueError: y1 must be greater than or equal to y0
>
> I have followed the complete set-up process as described in "WeeWX:
> Installation using setup.py", except that I do use a conda environment and
> pip packages rather than the OS packages:
>
> > mamba create -n weewx python=3.9
> > conda activate weewx
> > pip3 install configobj paho-mqtt pyserial pyusb Cheetah3 Pillow ephem
> > wget https://weewx.com/downloads/weewx-4.10.2.tar.gz
> > tar -xzvf weewx-4.10.2.tar.gz
> > cd weewx-4.10.2
> > python3 ./setup.py build
> > python3 ./setup.py install
> > # create the weewx.conf.patch from here:
> https://weisser-zwerg.dev/posts/ecowitt-gw2000-weewx-docker/
> > patch -p1 weewx.conf < weewx.conf.patch
> > wget -O weewx-mqtt.zip
> https://github.com/matthewwall/weewx-mqtt/archive/master.zip
> > ./bin/wee_extension --install ./weewx-mqtt.zip
> > wget -O weewx-interceptor.zip
> https://github.com/matthewwall/weewx-interceptor/archive/master.zip
> > ./bin/wee_extension --install ./weewx-interceptor.zip
> > # -------------------
> > ./bin/weewxd
>
> I still run into the exact same problem. I've tried several modifications
> to the config file, but cannot figure out what causes this problem. I've
> also added some print statement to tell me more about the issue around the
> drawing of the rectangle:
> def rectangle(self, box, **options):
> """Draw a scaled rectangle.
> box: A pair of 2-way tuples, containing coordinates of opposing corners
> of the box.
> options: passed on to draw.rectangle. Usually contains 'fill' (the color)
> """
> box_scaled = [(coord[0] * self.xscale + self.xoffset + 0.5,
> coord[1] * self.yscale + self.yoffset + 0.5) for coord in box]
> try:
> self.draw.rectangle(box_scaled, **options)
> print("Draw rectangle succeeded.")
> except:
> print("Draw rectangle failed:")
> print(box)
> print(box_scaled)
> print(f"self.xscale: {self.xscale}, self.xoffset: {self.xoffset},
> self.yscale: {self.yscale}, self.yoffset: {self.yoffset}\n")
> pass
>
> And I get results as follows:
> # ((1680429600, 1029.6000000000001), (1680457455, 1030.1000000000001))
> # [(44.01851851865649, 144.4999999999709), (216.61388888955116,
> 24.499999999970896)]
> # self.xscale: 0.004465020576131688, self.xoffset: -7503109, self.yscale:
> -240.0, self.yoffset: 247248
>
> Do you have any clues on how to resolve this?
>
>
> Thanks!
>
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