[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Tuesday, March 12, 2019 at 5:04:16 PM UTC-4, V. Kelly Bellis wrote:
>
> I was wondering if there might be any documentation written for 
> non-programmers in how weewx and XTide have been integrated? 
>

the forecast extension invokes xtide, parses the output, then stores the 
result in the forecast database.  the results can then be combined with 
other forecast data when generating reports.

by default, the forecast extension will invoke /usr/bin/tide

if your 'tide' program is located somewhere else, you can tell the 
extension to find it like this:

[Forecast]
[[XTide]]
prog = /path/to/tide
location = Boston

as for the tide location, you must test that directly with tide.  once you 
have a string that works, use that string as the 'location' parameter for 
the forecast extension.  if the location has commas or spaces then put it 
in quotes.

btw, this spring i'm hoping to have some students put together a guide for 
how to create your own harmonics from your own data.  we have been using 
maxbotix ultrasonic sensors on raspberry pi running weewx to collect tide 
data from a couple of islands in maine.  apparently you can create your own 
harmonics with 6-9 months of data (the data we have so far tracks the xtide 
predictions for tenants harbor and camden pretty well, but there are 
offsets in magnitude and phase).  its been a bit of a struggle - power 
outages, snow on solar panels, critters chewing through cables, 
seawater/corrosion.  but we'll get there...

m 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Matt - Thanks for the reply.

I'm guessing from your response that there is no documentation on xtide 
integration. 
XTide is running perfectly on the RPi, but the syslog is still indicating 
that there is an issue with weewx: forecast: XTide
even after implementing your suggested path update and location in 
(presumably) /etc/weewx/weewx.conf

*Details*
RE: weewx_forecasting-extension_xtide
pi@raspberrypi:~ $ uname -a
Linux raspberrypi 4.14.98-v7+ #1200 SMP Tue Feb 12 20:27:48 GMT 2019 armv7l 
GNU/Linux

*Sequence of Events*
20190221 Installed forecasting extension, sudo apt-get xtide, and sudo 
apt-get xtide-data
20190222 Realized deprecated deb package and data, sudo apt-get remove 
xtide, and sudo apt-get remove xtide-data
20190222 Built XTide v2.15.1 from source files
20190224 XTide v2.15.2 available
20190226 Built XTide v2.15.2 from source files

(time off to work on 
https://flaterco.com/files/xtide/XTide%20v2.15.2%20Help%20b20190309.chm)

20190312 Examined /var/log/syslog and discovered xtide STATION_NOT_FOUND 
errors
20190313 Examined /usr/bin/ and discovered tide v2.13.2 was not removed(!) 
- manually removed - and left wondering what other lingering bits could 
there be from the original installation on 20190221 of the deprecated 
stuff, this despite the overt sudo apt-get remove efforts.

9:13 AM   Wednesday, March 13, 2019  (VKB)
pi@raspberrypi:~ $ sudo rm /usr/bin/tide

pi@raspberrypi:~ $ sudo leafpad /etc/weewx/weewx.conf
@ line number 652 [[XTide]], inserted and edited the following lines 
 prog = /usr/local/bin/tide
 location = Boston

pi@raspberrypi:~ $ sudo /etc/init.d/weewx stop
[ ok ] Stopping weewx (via systemctl): weewx.service.
pi@raspberrypi:~ $ sudo /etc/init.d/weewx start
[ ok ] Starting weewx (via systemctl): weewx.service.


 And again from /var/log/syslog
Mar 13 10:30:16 raspberrypi weewx[2614]: manager: Added record 2019-03-13 
10:30:00 EDT (1552487400) to database 'weewx.sdb'
Mar 13 10:30:16 raspberrypi weewx[2614]: manager: Added record 2019-03-13 
10:30:00 EDT (1552487400) to daily summary in 'weewx.sdb'
Mar 13 10:30:16 raspberrypi weewx[2614]: forecast: XTideThread: XTide: 
generating tides from 2019-03-13 00:00:00 EDT (1552449600) to 2019-04-10 
00:00:00 EDT (1554868800)
Mar 13 10:30:16 raspberrypi weewx[2614]: atmocomudp: MainThread: Listening 
for UDP broadcasts to IP address  on port 12000, with timeout 90 
and share_socket True...
Mar 13 10:30:17 raspberrypi weewx[2614]: forecast: XTideThread: XTide: got 
no tidal events
Mar 13 10:30:17 raspberrypi weewx[2614]: forecast: XTideThread: XTide: 
generate forecast failed: XTide Error:  STATION_NOT_FOUND The specified 
station was not found in any harmonics file.  Error details: Could not 
find: Boston

FY(and your students)I & FWIW - https://flaterco.com/xtide/harmonics.html

Kind regards,

Kelly



On Tuesday, March 12, 2019 at 5:49:32 PM UTC-4, mwall wrote:
>
> On Tuesday, March 12, 2019 at 5:04:16 PM UTC-4, V. Kelly Bellis wrote:
>>
>> I was wondering if there might be any documentation written for 
>> non-programmers in how weewx and XTide have been integrated? 
>>
>
> the forecast extension invokes xtide, parses the output, then stores the 
> result in the forecast database.  the results can then be combined with 
> other forecast data when generating reports.
>
> by default, the forecast extension will invoke /usr/bin/tide
>
> if your 'tide' program is located somewhere else, you can tell the 
> extension to find it like this:
>
> [Forecast]
> [[XTide]]
> prog = /path/to/tide
> location = Boston
>
> as for the tide location, you must test that directly with tide.  once you 
> have a string that works, use that string as the 'location' parameter for 
> the forecast extension.  if the location has commas or spaces then put it 
> in quotes.
>
> btw, this spring i'm hoping to have some students put together a guide for 
> how to create your own harmonics from your own data.  we have been using 
> maxbotix ultrasonic sensors on raspberry pi running weewx to collect tide 
> data from a couple of islands in maine.  apparently you can create your own 
> harmonics with 6-9 months of data (the data we have so far tracks the xtide 
> predictions for tenants harbor and camden pretty well, but there are 
> offsets in magnitude and phase).  its been a bit of a struggle - power 
> outages, snow on solar panels, critters chewing through cables, 
> seawater/corrosion.  but we'll get there...
>
> m 
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Wednesday, March 13, 2019 at 11:03:43 AM UTC-4, V. Kelly Bellis wrote:
>
>
> Mar 13 10:30:17 raspberrypi weewx[2614]: forecast: XTideThread: XTide: got 
> no tidal events
> Mar 13 10:30:17 raspberrypi weewx[2614]: forecast: XTideThread: XTide: 
> generate forecast failed: XTide Error:  STATION_NOT_FOUND The specified 
> station was not found in any harmonics file.  Error details: Could not 
> find: Boston
>

what happens when you run the tide program that you built and installed?

you should be able to do this:

/usr/local/bin/tide

and get output like this:

Minimal usage:  tide -l "Location name" (or set the environment variable
  XTIDE_DEFAULT_LOCATION to "Location name")

Other switches:
  -b "-MM-DD HH:MM"
  Specify the begin (start) time for predictions.
  -e "-MM-DD HH:MM"
  Specify the end (stop) time for predictions.
  -f c|h|i|l|p|t
  Specify the output format as CSV, HTML, iCalendar, LaTeX, PNG, or 
text.
  The default is text.
  -m a|b|c|C|g|k|l|m|p|r|s
  Specify mode to be about, banner, calendar, alt. calendar, graph, 
clock,
  list, medium rare, plain, raw, or stats.  The default is plain.
  -o "filename"
  Redirect output to the specified file (appends).
  -s "HH:MM"
  Specify the step interval, in hours and minutes, for raw
  mode predictions.  The default is one hour.
  -v
  Print version string and exit.

These are only the most important switches.  For information on all of
the switches, please read the verbose documentation at:
  http://www.flaterco.com/xtide/

then try specifying a location:

tide -l Boston

or try ellsworth:

tide -l ellsworth

Indexing /usr/share/xtide/harmonics-initial.tcd...
Indexing /usr/share/xtide/harmonics-dwf-20100529-free.tcd...
Ellsworth, Union River, Blue Hill Bay, Maine
44.5350° N, 68.4217° W

2019-03-13  4:34 PM EDT   9.92 feet  High Tide
2019-03-13  6:36 PM EDT   Sunset
2019-03-13 10:40 PM EDT   1.31 feet  Low Tide
2019-03-14  1:53 AM EDT   Moonset
2019-03-14  4:54 AM EDT  10.83 feet  High Tide
2019-03-14  6:26 AM EDT   First Quarter
2019-03-14  6:48 AM EDT   Sunrise
2019-03-14 11:22 AM EDT   Moonrise
2019-03-14 11:22 AM EDT   0.70 feet  Low Tide
2019-03-14  5:34 PM EDT   9.74 feet  High Tide
2019-03-14  6:38 PM EDT   Sunset
2019-03-14 11:40 PM EDT   1.44 feet  Low Tide
2019-03-15  2:56 AM EDT   Moonset
2019-03-15  5:55 AM EDT  10.86 feet  High Tide
2019-03-15  6:46 AM EDT   Sunrise
2019-03-15 12:16 PM EDT   Moonrise
2019-03-15 12:27 PM EDT   0.63 feet  Low Tide
2019-03-15  6:39 PM EDT   Sunset
2019-03-15  6:40 PM EDT   9.76 feet  High Tide
2019-03-16 12:46 AM EDT   1.36 feet  Low Tide
2019-03-16  3:55 AM EDT   Moonset
2019-03-16  6:44 AM EDT   Sunrise
2019-03-16  7:02 AM EDT  11.06 feet  High Tide
2019-03-16  1:19 PM EDT   Moonrise
2019-03-16  1:35 PM EDT   0.34 feet  Low Tide
2019-03-16  6:40 PM EDT   Sunset
2019-03-16  7:48 PM EDT  10.07 feet  High Tide
2019-03-17  1:55 AM EDT   1.00 feet  Low Tide
2019-03-17  4:46 AM EDT   Moonset
2019-03-17  6:42 AM EDT   Sunrise
2019-03-17  8:09 AM EDT  11.49 feet  High Tide

if that does not work, then weewx won't be able to do anything either - 
you'll have to diagnose the tide program and your harmonics first.

m

 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Wednesday, March 13, 2019 at 1:08:28 PM UTC-4, V. Kelly Bellis wrote:
>
> Hi Matt,
>
> Thank you for your reply.
>
> Let me know how you make out after you install XTide v2.15.2 and the most 
> recent harmonics file.
>
> In answer to your question, and as I previously said, v2.15.2 works 
> perfectly. 
>

you probably need to tell your tide program where to find the harmonics.  
something like this should work:

HFILE_PATH=/path/to/harmonics.tcd tide -l Boston

apparently the environment in which you run weewx is not the same as the 
environment in which you are directly invoking tide, so you could be safe 
and wrap your tide program in a shell script, then use the shell script as 
the 'prog' for forecast.

for example, with weewx installed at /opt/weewx, put in the file 
/opt/weewx/bin/user/tide.sh something like this:

#!/bin/sh
HFILE_PATH=/path/to/harmonics.tcd tide "$@"

then use this in your forecast configuration:

  prog=/opt/weewx/bin/user/tide.sh

for example, here is a recent harmonics file with the bog-standard tide 
program from a debian install (xtide version 2.11):

/opt/weewx/bin/user/tide.sh -l "Boston, Boston Harbor"
Indexing /opt/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd...
Boston, Boston Harbor, Massachusetts
42.3539° N, 71.0503° W

2019-03-14  5:59 PM EDT   8.64 feet  High Tide
2019-03-14  6:49 PM EDT   Sunset
2019-03-15 12:05 AM EDT   1.19 feet  Low Tide
2019-03-15  3:00 AM EDT   Moonset
2019-03-15  6:17 AM EDT   9.85 feet  High Tide
2019-03-15  6:56 AM EDT   Sunrise
2019-03-15 12:34 PM EDT   Moonrise
2019-03-15 12:49 PM EDT   0.44 feet  Low Tide
2019-03-15  6:50 PM EDT   Sunset
2019-03-15  7:01 PM EDT   8.69 feet  High Tide
2019-03-16  1:07 AM EDT   1.08 feet  Low Tide
2019-03-16  3:58 AM EDT   Moonset
2019-03-16  6:54 AM EDT   Sunrise
2019-03-16  7:20 AM EDT  10.08 feet  High Tide
2019-03-16  1:37 PM EDT   Moonrise
2019-03-16  1:52 PM EDT   0.14 feet  Low Tide
2019-03-16  6:51 PM EDT   Sunset
2019-03-16  8:05 PM EDT   8.97 feet  High Tide
2019-03-17  2:10 AM EDT   0.73 feet  Low Tide
2019-03-17  4:51 AM EDT   Moonset
2019-03-17  6:53 AM EDT   Sunrise
2019-03-17  8:24 AM EDT  10.46 feet  High Tide
2019-03-17  2:47 PM EDT   Moonrise
2019-03-17  2:53 PM EDT  -0.31 feet  Low Tide
2019-03-17  6:52 PM EDT   Sunset
2019-03-17  9:07 PM EDT   9.46 feet  High Tide
2019-03-18  3:11 AM EDT   0.17 feet  Low Tide
2019-03-18  5:36 AM EDT   Moonset
2019-03-18  6:51 AM EDT   Sunrise
2019-03-18  9:26 AM EDT  10.94 feet  High Tide

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Hello Matt,

Thank you for your reply, though I don't fully understand it. 

Have you tried to install XTide v2.15.2 and do you have it working with 
weewx and the forecast extension?

*RE: The environment*
/usr/local/bin/tide already knows where to find harmonics as directed by
/etc/environment wherein is contained:
HFILE_PATH=/usr/local/share/xtide
WVS_DIR=/home/pi/XTide/wvs


XTide was installed from source files and into the associated directories 
following the David Flater's excellent, though sometimes terse, 
instructions.  Weewx got installed automatically through the apt-get 
process.

/usr/share/weewx/weewxd 

In /etc/weewx/weewx.conf under 
[Forecast]
 ...
   [[XTide]]
  prog = /usr/local/bin/tide


*IF* I understand you, 
1) I should create /usr/share/weewx/tide.sh wherein is contained
#!/bin/sh
HFILE_PATH=/usr/local/share/harmonics-dwf-20181227-free.tcd tide "$@"

2) and then, you're saying I should
In /etc/weewx/weewx.conf under 
[Forecast]
 ...
   [[XTide]]
  prog =  /usr/share/weewx/tide.sh
 
*Is this understanding correct?*


FWIW - Found more deprecated droppings from the old deb-package that 
weren't properly removed by sudo apt-get remove xtide-data; i.e., 
/usr/share/xtide/harmonics-initial.tcd - manually removed by
pi@raspberrypi:~ $ sudo rm -r /usr/share/xtide




On Tuesday, March 12, 2019 at 5:04:16 PM UTC-4, V. Kelly Bellis wrote:
>
> RE: Forecasting Extension, RPi, Raspbian, weewx v3.9.1, XTide v2.15.2
> https://github.com/weewx/weewx/wiki/forecasting
>
> The xtide package (sudo apt-get install xtide) is an old, neglected, and 
> abandoned Debian package. How old? It and its related data: xtide 
> v2.13.2-1+b1 and data circa 20100529. The net result is as you would 
> expect, tide heights and times have drifted enough away from current NOAA 
> predictions to be noticeable or worse.
>
> Building XTide from source files on the RPi (including a path statement in 
> /etc/environment, to the harmonics file; i.e., 
> /usr/local/share/xtide/harmonics-dwf-20181227-free.tcd) has xtide working 
> properly by itself; however, when viewing /var/log/syslog I'm seeing 
> STATION_NOT_FOUND.
>
> I was wondering if there might be any documentation written for 
> non-programmers in how weewx and XTide have been integrated? 
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Hello Matt,

Hope you are well. It's been a few days and I haven't heard back from you 
yet.

Have you tried to install XTide v2.15.2 and do you have it working with 
weewx and the forecast extension?
And did I understand you correctly? - see previous post.

Kind regards,

Kelly


On Thursday, March 14, 2019 at 3:19:03 PM UTC-4, V. Kelly Bellis wrote:
>
> Hello Matt,
>
> Thank you for your reply, though I don't fully understand it. 
>
> Have you tried to install XTide v2.15.2 and do you have it working with 
> weewx and the forecast extension?
>
> *RE: The environment*
> /usr/local/bin/tide already knows where to find harmonics as directed by
> /etc/environment wherein is contained:
> HFILE_PATH=/usr/local/share/xtide
> WVS_DIR=/home/pi/XTide/wvs
>
>
> XTide was installed from source files and into the associated directories 
> following the David Flater's excellent, though sometimes terse, 
> instructions.  Weewx got installed automatically through the apt-get 
> process.
>
> /usr/share/weewx/weewxd 
>
> In /etc/weewx/weewx.conf under 
> [Forecast]
>  ...
>[[XTide]]
>   prog = /usr/local/bin/tide
>
>
> *IF* I understand you, 
> 1) I should create /usr/share/weewx/tide.sh wherein is contained
> #!/bin/sh
> HFILE_PATH=/usr/local/share/harmonics-dwf-20181227-free.tcd tide "$@"
>
> 2) and then, you're saying I should
> In /etc/weewx/weewx.conf under 
> [Forecast]
>  ...
>[[XTide]]
>   prog =  /usr/share/weewx/tide.sh
>  
> *Is this understanding correct?*
>
>
> FWIW - Found more deprecated droppings from the old deb-package that 
> weren't properly removed by sudo apt-get remove xtide-data; i.e., 
> /usr/share/xtide/harmonics-initial.tcd - manually removed by
> pi@raspberrypi:~ $ sudo rm -r /usr/share/xtide
>
>
>
>
> On Tuesday, March 12, 2019 at 5:04:16 PM UTC-4, V. Kelly Bellis wrote:
>>
>> RE: Forecasting Extension, RPi, Raspbian, weewx v3.9.1, XTide v2.15.2
>> https://github.com/weewx/weewx/wiki/forecasting
>>
>> The xtide package (sudo apt-get install xtide) is an old, neglected, and 
>> abandoned Debian package. How old? It and its related data: xtide 
>> v2.13.2-1+b1 and data circa 20100529. The net result is as you would 
>> expect, tide heights and times have drifted enough away from current NOAA 
>> predictions to be noticeable or worse.
>>
>> Building XTide from source files on the RPi (including a path statement 
>> in /etc/environment, to the harmonics file; i.e., 
>> /usr/local/share/xtide/harmonics-dwf-20181227-free.tcd) has xtide working 
>> properly by itself; however, when viewing /var/log/syslog I'm seeing 
>> STATION_NOT_FOUND.
>>
>> I was wondering if there might be any documentation written for 
>> non-programmers in how weewx and XTide have been integrated? 
>>
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Tuesday, March 19, 2019 at 9:32:20 AM UTC-4, V. Kelly Bellis wrote:
>
>
> Have you tried to install XTide v2.15.2 and do you have it working with 
> weewx and the forecast extension?
>

yes.  but there is no need to install the latest xtide - older versions 
work just fine with the latest harmonics.

 

> And did I understand you correctly? - see previous post.
>

yes
 
 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Hello Matt,

Thank you for your reply.

I'm still not understanding why in /etc/weewx/weewx.conf under 

[Forecast]
 ...
   [[XTide]]
  prog = /usr/local/bin/tide

What's wrong with this?

And why the need for the tide.sh?

[Forecast]
 ...
   [[XTide]]
  prog =  /usr/share/weewx/tide.sh



RE: Updating XTide
The need to update xtide would be predicated on which old version of xtide 
you are using with the latest harmonics, and you're particular need to have 
accurate tide information. In your example listed from the forecast 
extension page , 
http://sailing.mit.edu/weather/forecast.html, I was unable to reach the 
site (it keeps timing out) to see it working. 

https://flaterco.com/xtide/changelog.html might be worth consulting in 
making the decision to update xtide as there have been several changes made 
since 2.13 (deprecated apt-get package linked on your forecast extension 
page ); and of course, 
comparing your xtide results with 
https://tidesandcurrents.noaa.gov/stationhome.html is advised.

You might want to consider adding a note on your forecast extension page 
 that harmonics data 
outside of the U.S. has been discontinued and hasn't been maintained since 
early 2012.


On Tuesday, March 19, 2019 at 10:22:09 AM UTC-4, mwall wrote:
>
> On Tuesday, March 19, 2019 at 9:32:20 AM UTC-4, V. Kelly Bellis wrote:
>>
>>
>> Have you tried to install XTide v2.15.2 and do you have it working with 
>> weewx and the forecast extension?
>>
>
> yes.  but there is no need to install the latest xtide - older versions 
> work just fine with the latest harmonics.
>
>  
>
>> And did I understand you correctly? - see previous post.
>>
>
> yes
>  
>  
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Tuesday, March 19, 2019 at 11:52:49 AM UTC-4, V. Kelly Bellis wrote:
>
>
> I'm still not understanding why in /etc/weewx/weewx.conf under 
>
> [Forecast]
>  ...
>[[XTide]]
>   prog = /usr/local/bin/tide
>
> What's wrong with this?
>
> And why the need for the tide.sh?
>

apparently the environment in which you run weewx is not the same as the 
environment in which you run tide directly, so when the forecast extension 
invokes /usr/local/bin/tide, tide cannot find the harmonics.  the tide.sh 
script ensures that you use the right harmonics by explicitly telling tide 
which harmonics file to use.  you do not need tide.sh if you fix your 
environment issues.
 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Tuesday, March 19, 2019 at 11:52:49 AM UTC-4, V. Kelly Bellis wrote:
>
>
> The need to update xtide would be predicated on which old version of xtide 
> you are using with the latest harmonics, and you're particular need to have 
> accurate tide information. In your example listed from the forecast 
> extension page , 
> http://sailing.mit.edu/weather/forecast.html, I was unable to reach the 
> site (it keeps timing out) to see it working. 
>

sorry, mit is mucking about with the network right now (they just sold off 
a huge block of 18. addresses, and there are still some kinks in the 
transition to new address space).

 

> https://flaterco.com/xtide/changelog.html 
> 
>  
> might be worth consulting in making the decision to update xtide as there 
> have been several changes made since 2.13 (deprecated apt-get package 
> linked on your forecast extension page 
> ); and of course, 
> comparing your xtide results with 
> https://tidesandcurrents.noaa.gov/stationhome.html is advised.
>

yup.  none of the changes have any impact on the output from tide.  you 
could probably go all the way back to the early 2.x releases circa 1999 and 
still get the same results.  weewx-forecast uses only tide, not xtide or 
any of the other stuff include in the xtide packaging.

only the harmonics matter, and how much those matter depends on your 
location.

 

> You might want to consider adding a note on your forecast extension page 
>  that harmonics data 
> outside of the U.S. has been discontinued and hasn't been maintained since 
> early 2012.
>

done
 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

> apparently the environment in which you run weewx is not the same as the 
> environment in which you run tide directly, so when the forecast extension 
> invokes /usr/local/bin/tide, tide cannot find the harmonics.  the tide.sh 
> script ensures that you use the right harmonics by explicitly telling tide 
> which harmonics file to use.  you do not need tide.sh if you fix your 
> environment issues.
>

What does this syslog message suggest:
Mar 20 08:25:31 raspberrypi weewx[16792]: forecast: XTideThread: XTide: got 
no tidal events

'got no tidal events' is still present after every attempt to remediate 
forecast not showing tide predictions; e.g.,

[image: still nojoy.PNG]


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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Wednesday, March 20, 2019 at 9:26:06 AM UTC-4, V. Kelly Bellis wrote:
>
>
> apparently the environment in which you run weewx is not the same as the 
>> environment in which you run tide directly, so when the forecast extension 
>> invokes /usr/local/bin/tide, tide cannot find the harmonics.  the tide.sh 
>> script ensures that you use the right harmonics by explicitly telling tide 
>> which harmonics file to use.  you do not need tide.sh if you fix your 
>> environment issues.
>>
>
> What does this syslog message suggest:
> Mar 20 08:25:31 raspberrypi weewx[16792]: forecast: XTideThread: XTide: 
> got no tidal events
>
> 'got no tidal events' is still present after every attempt to remediate 
> forecast not showing tide predictions; e.g.,
>

this message indicates that the forecast extension is not getting any data 
from the tide program.

what happens when you use the tide.sh approach?  what output do you get 
when you invoke tide.sh directly?
 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

pi@raspberrypi:~ $ /usr/local/share/xtide/harmonics-dwf-20181227-free.tcd 
tide -l Ellsworth
bash: /usr/local/share/xtide/harmonics-dwf-20181227-free.tcd: Permission 
denied



On Wednesday, March 20, 2019 at 9:38:25 AM UTC-4, mwall wrote:
>
>
>
> On Wednesday, March 20, 2019 at 9:26:06 AM UTC-4, V. Kelly Bellis wrote:
>>
>>
>> apparently the environment in which you run weewx is not the same as the 
>>> environment in which you run tide directly, so when the forecast extension 
>>> invokes /usr/local/bin/tide, tide cannot find the harmonics.  the tide.sh 
>>> script ensures that you use the right harmonics by explicitly telling tide 
>>> which harmonics file to use.  you do not need tide.sh if you fix your 
>>> environment issues.
>>>
>>
>> What does this syslog message suggest:
>> Mar 20 08:25:31 raspberrypi weewx[16792]: forecast: XTideThread: XTide: 
>> got no tidal events
>>
>> 'got no tidal events' is still present after every attempt to remediate 
>> forecast not showing tide predictions; e.g.,
>>
>
> this message indicates that the forecast extension is not getting any data 
> from the tide program.
>
> what happens when you use the tide.sh approach?  what output do you get 
> when you invoke tide.sh directly?
>  
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

The .sh has no luck, but regular tide -l location works. 


[image: got nojoy.PNG]




On Wednesday, March 20, 2019 at 9:41:44 AM UTC-4, V. Kelly Bellis wrote:
>
> pi@raspberrypi:~ $ /usr/local/share/xtide/harmonics-dwf-20181227-free.tcd 
> tide -l Ellsworth
> bash: /usr/local/share/xtide/harmonics-dwf-20181227-free.tcd: Permission 
> denied
>
>
>
> On Wednesday, March 20, 2019 at 9:38:25 AM UTC-4, mwall wrote:
>>
>>
>>
>> On Wednesday, March 20, 2019 at 9:26:06 AM UTC-4, V. Kelly Bellis wrote:
>>>
>>>
>>> apparently the environment in which you run weewx is not the same as the 
 environment in which you run tide directly, so when the forecast extension 
 invokes /usr/local/bin/tide, tide cannot find the harmonics.  the tide.sh 
 script ensures that you use the right harmonics by explicitly telling tide 
 which harmonics file to use.  you do not need tide.sh if you fix your 
 environment issues.

>>>
>>> What does this syslog message suggest:
>>> Mar 20 08:25:31 raspberrypi weewx[16792]: forecast: XTideThread: XTide: 
>>> got no tidal events
>>>
>>> 'got no tidal events' is still present after every attempt to remediate 
>>> forecast not showing tide predictions; e.g.,
>>>
>>
>> this message indicates that the forecast extension is not getting any 
>> data from the tide program.
>>
>> what happens when you use the tide.sh approach?  what output do you get 
>> when you invoke tide.sh directly?
>>  
>>
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

you might want to purge the debian installation of tide

sudo apt-get purge xtide

otherwise there might be config files lingering around that confound your 
new xtide installation.  ('apt-get remove' removes the software, but leaves 
configurations and data behind.  'apt-get purge' is more aggressive, and 
removes the configurations too.)

or you could do

sudo-apt-get install xtide

then put your new harmonics file somewhere, say

  /opt/tide/harmonics-dwf-20181227-free.tcd

then make the shell script at /opt/tide/tide.sh:

#!/bin/sh
HFILE_PATH=/opt/tide/harmonics-dwf-20181227-free.tcd tide "$@"

then set the permissions:

sudo chmod 755 /opt/tide/tide.sh

then use it in your forecast configuration:

prog = /opt/tide/tide.sh

that way you can have both - the old xtide and the new xtide, so you can do 
direct comparisons from the command line.

m


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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Wednesday, March 20, 2019 at 9:41:44 AM UTC-4, V. Kelly Bellis wrote:
>
> pi@raspberrypi:~ $ /usr/local/share/xtide/harmonics-dwf-20181227-free.tcd 
> tide -l Ellsworth
> bash: /usr/local/share/xtide/harmonics-dwf-20181227-free.tcd: Permission 
> denied
>
>
you just tried to execute a harmonics file.  harmonics files are data, not 
executables.

you want this:

HFILE_PATH=/usr/local/share/xtide/harmonics-dwf-20181227-free.tcd tide -l 
Ellsworth

or, if you created the tide.sh script, simply:

/path/to/tide.sh -l Ellsworth

but for less grey hair (oops!  too late for that one for many of us!) use 
the second option in my previous posting.

m

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Will sudo apt-get purge xtide purge only the old deprecated xtide stuff or 
will frig with all things xtide system-wide?


On Wednesday, March 20, 2019 at 9:48:08 AM UTC-4, mwall wrote:
>
> you might want to purge the debian installation of tide
>
> sudo apt-get purge xtide
>
>
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Wednesday, March 20, 2019 at 9:52:17 AM UTC-4, V. Kelly Bellis wrote:
>
>
> Will sudo apt-get purge xtide purge only the old deprecated xtide stuff or 
> will frig with all things xtide system-wide?
>
>>
>>
purging xtide will probably not touch your installation at /usr/local

packages installed by apt usually go into standard system locations - /etc, 
/var/lib

packages installed by source typically go in /usr/local or in /opt

so as i mentioned previously, you should be able to have both on your 
system at the same time (it works for me).  you just have to be explicitly 
about which harmonics file you want.  you'll have to read the xtide 
code/docs to find out the configuration precedence for tide.

m
 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Thursday, March 21, 2019 at 7:39:23 AM UTC-4, V. Kelly Bellis wrote:
>
>
> Why in the world would I ever want to have anything but a current version 
> of xtide? And moreover, old harmonics data, i.e., circa 20100529 - why 
> would I want that added liability? A better question would be: why isn't 
> forecast able to integrate a modern version of tide?
>

ah, but the forecast extension DOES work with ANY version of xtide.

why would you want to install the latest xtide, when the one from 2010 
produces exactly the same results?

only the harmonics need to be updated, and for some locations those don't 
even matter that much

when someone asks "does forecast work with the latest version of xtide?" it 
is rather handy to have 2 (or 5 or 10) different versions of xtide or its 
harmonics installed at once so that i can answer accurately.

 

> From your remarks, it sounds like you don't have v2.15.2 working yet with 
> forecast and that you've retained v2.13 (or earlier) explicitly for tide's 
> integration into forecast. Or have I misread something?
>

apparently you misread

 

> I'm not a programmer, but it seems that forecast.py (and maybe other 
> related bits of python) is predicated on the placement of xtide in a 
> particular environment instilled from a Debian-style package installation 
> without any provision for building xtide from source files. All of this is 
> still pretty alien to me, but in so far as I'm able, I'm interested in 
> helping find a solution to this problem as I love that local tide 
> predictions can be presented alongside local weather forecasts. 
>

the default installation assumes that tide is located at /usr/bin/tide

this can be changed with the `prog` option.

as long as the thing referred to by `prog` produces output in the format 
produced by the 'tide' program (which is unchanged since 1999 or so), then 
everything works.


so maybe some examples will help:

here is output from tide version 2.11 for boston harbor using two different 
harmonics files.  the first harmonics file is from 2010, the second one is 
from 2018.  the differences in tide magnitude and timing are minimal.  if 
you do the same test for boston light, there is more variation, but still 
pretty small.

tide -l'Boston, Boston Harbor' -b'2019-03-21 00:00' -e'2019-03-22 00:00'
Indexing /usr/share/xtide/harmonics-initial.tcd...
Indexing /usr/share/xtide/harmonics-dwf-20100529-free.tcd...
Boston, Boston Harbor, Massachusetts
42.3550° N, 71.0533° W

2019-03-21  5:58 AM EDT  -1.53 feet  Low Tide
2019-03-21  6:46 AM EDT   Sunrise
2019-03-21  7:26 AM EDT   Moonset
2019-03-21 12:13 PM EDT  11.82 feet  High Tide
2019-03-21  6:26 PM EDT  -1.72 feet  Low Tide
2019-03-21  6:57 PM EDT   Sunset
2019-03-21  7:50 PM EDT   Moonrise


HFILE_PATH=/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd
 
tide -l'Boston, Boston Harbor' -b'2019-03-21 00:00' -e'2019-03-22 00:00'
Indexing 
/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd...
Boston, Boston Harbor, Massachusetts
42.3539° N, 71.0503° W

2019-03-21  5:58 AM EDT  -1.52 feet  Low Tide
2019-03-21  6:46 AM EDT   Sunrise
2019-03-21  7:25 AM EDT   Moonset
2019-03-21 12:13 PM EDT  11.83 feet  High Tide
2019-03-21  6:26 PM EDT  -1.71 feet  Low Tide
2019-03-21  6:57 PM EDT   Sunset
2019-03-21  7:50 PM EDT   Moonrise

now lets look at ellsworth maine:

tide -l'Ellsworth' -b'2019-03-21 00:00' -e'2019-03-22 00:00'
Indexing /usr/share/xtide/harmonics-initial.tcd...
Indexing /usr/share/xtide/harmonics-dwf-20100529-free.tcd...
Ellsworth, Union River, Blue Hill Bay, Maine
44.5350° N, 68.4217° W

2019-03-21  5:49 AM EDT  -1.50 feet  Low Tide
2019-03-21  6:35 AM EDT   Sunrise
2019-03-21  7:15 AM EDT   Moonset
2019-03-21 11:59 AM EDT  13.23 feet  High Tide
2019-03-21  6:15 PM EDT  -1.72 feet  Low Tide
2019-03-21  6:47 PM EDT   Sunset
2019-03-21  7:39 PM EDT   Moonrise

HFILE_PATH=/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd
 
tide -l'Ellsworth' -b'2019-03-21 00:00' -e'2019-03-22 00:00'
Indexing 
/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd...
Ellsworth, Union River, Blue Hill Bay, Maine
44.5350° N, 68.4217° W

2019-03-21  5:48 AM EDT  -1.29 feet  Low Tide
2019-03-21  6:35 AM EDT   Sunrise
2019-03-21  7:15 AM EDT   Moonset
2019-03-21 12:00 PM EDT  13.01 feet  High Tide
2019-03-21  6:16 PM EDT  -1.63 feet  Low Tide
2019-03-21  6:47 PM EDT   Sunset
2019-03-21  7:39 PM EDT   Moonrise

interesting!  there is more variation here, probably because of the 
geography - the ellsworth tidal area is considerably different from boston 
harbor.  but the differences are still pretty small (unless you're on a 
boat and you really need that additional 1.-2.5" of draft or that 1 minute 
time shift).

of course, if you run your own tide station you could figure out whether 
the xtide harmonics are actually accurate for your location - they might be 
inter-station approximations.

so it might not be worth sweating the

[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Thursday, March 21, 2019 at 7:39:23 AM UTC-4, V. Kelly Bellis wrote:
>
> Mar 21 07:30:26 raspberrypi weewx[566]: forecast: XTideThread: XTide: 
> generating tides from 2019-03-21 00:00:00 EDT (1553140800) to 2019-04-18 
> 00:00:00 EDT (16)
> Mar 21 07:30:26 raspberrypi weewx[566]: engine: Garbage collected 6168 
> objects
> Mar 21 07:30:26 raspberrypi weewx[566]: atmocomudp: MainThread: Listening 
> for UDP broadcasts to IP address  on port 12000, with timeout 
> 90 and share_socket True...
> Mar 21 07:30:26 raspberrypi weewx[566]: forecast: XTideThread: XTide: got 
> no tidal events
>
>
so you are still not getting output from the tide program that the 
weewx-forecast extension can understand.

please set debug=1 then restart weewx.  that will tell us exactly what 
command weewx is running when it tries to generate the tide data.

m

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

and just for completeness, here are the two boston harbor cases using tide 
2.15.2.  as you can see, the output is identical to that of tide 2.11

*/opt/xtide-2.15.2/bin/tide -l'Boston, Boston Harbor' -b'2019-03-21 00:00' 
-e'2019-03-22 00:00'*
Indexing /usr/share/xtide/harmonics-initial.tcd...
Indexing /usr/share/xtide/harmonics-dwf-20100529-free.tcd...
Boston, Boston Harbor, Massachusetts
42.3550° N, 71.0533° W

2019-03-21  5:58 AM EDT  -1.53 feet  Low Tide
2019-03-21  6:46 AM EDT   Sunrise
2019-03-21  7:26 AM EDT   Moonset
2019-03-21 12:13 PM EDT  11.82 feet  High Tide
2019-03-21  6:26 PM EDT  -1.72 feet  Low Tide
2019-03-21  6:57 PM EDT   Sunset
2019-03-21  7:50 PM EDT   Moonrise

*HFILE_PATH=/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd
 
/opt/xtide-2.15.2/bin/tide -l'Boston, Boston Harbor' -b'2019-03-21 00:00' 
-e'2019-03-22 00:00'*
Indexing 
/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd...
Boston, Boston Harbor, Massachusetts
42.3539° N, 71.0503° W

2019-03-21  5:58 AM EDT  -1.52 feet  Low Tide
2019-03-21  6:46 AM EDT   Sunrise
2019-03-21  7:25 AM EDT   Moonset
2019-03-21 12:13 PM EDT  11.83 feet  High Tide
2019-03-21  6:26 PM EDT  -1.71 feet  Low Tide
2019-03-21  6:57 PM EDT   Sunset
2019-03-21  7:50 PM EDT   Moonrise

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Unsure where and how many possible places in the weewx realm there are 
where debugging might be available, I took a guess that that 
/etc/weewx/weewx.conf was what you meant:

[image: weewx_dot_conf debug = 1.PNG]


Just out of curiosity, was this where you meant? and are there any other 
places where to check for verbose bug reports related to 
weewx+forecast+tide?


Mar 22 07:40:21 raspberrypi weewx[16352]: manager: Added record 2019-03-22 
07:40:00 EDT (1553254800) to database 'weewx.sdb'
Mar 22 07:40:21 raspberrypi weewx[16352]: manager: Added record 2019-03-22 
07:40:00 EDT (1553254800) to daily summary in 'weewx.sdb'
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: MainThread: Zambretti: 
starting thread
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: MainThread: NWS: not 
yet time to do the forecast
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: MainThread: OWM: not 
yet time to do the forecast
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: MainThread: XTide: 
starting thread
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: ZambrettiThread: 
Zambretti: forecast was already calculated for 2019-03-21 09:00:00 EDT (
1553173200)
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: ZambrettiThread: 
Zambretti: terminating thread
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: XTideThread: XTide: 
generating tides from 2019-03-22 00:00:00 EDT (1553227200) to 2019-04-19 00:
00:00 EDT (1555646400)
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: XTideThread: XTide: 
running command '/usr/share/weewx/tide.sh -fc -df'%Y.%m.%d' -tf'%H:%M' -l'
Ellsworth' -b'2019-03-22 00:00' -e'2019-04-19 00:00''
Mar 22 07:40:21 raspberrypi weewx[16352]: restx: StationRegistry: wait 
interval (71400 < 604800) has not passed for record 2019-03-22 07:40:00 EDT 
(1553254800)
Mar 22 07:40:21 raspberrypi weewx[16352]: reportengine: Running reports for 
latest time in the database.
Mar 22 07:40:21 raspberrypi weewx[16352]: atmocomudp: MainThread: Listening 
for UDP broadcasts to IP address  on port 12000, with timeout 90 
and share_socket True...
Mar 22 07:40:21 raspberrypi weewx[16352]: reportengine: Running report 
'SeasonsReport'
Mar 22 07:40:21 raspberrypi weewx[16352]: reportengine: Found configuration 
file /etc/weewx/skins/Seasons/skin.conf for report 'SeasonsReport'
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: XTideThread: XTide: got 
no tidal events
Mar 22 07:40:21 raspberrypi weewx[16352]: cheetahgenerator: using search 
list ['weewx.cheetahgenerator.Almanac', 'weewx.cheetahgenerator.Station', 
'weewx.cheetahgenerator.Current', 'weewx.cheetahgenerator.Stats', 
'weewx.cheetahgenerator.UnitInfo', 'weewx.cheetahgenerator.Extras', 
'user.forecast.ForecastVariables']
Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: XTideThread: XTide: 
terminating thread
Mar 22 07:40:21 raspberrypi weewx[16352]: manager: Daily summary version is 
2.0
Mar 22 07:40:23 raspberrypi weewx[16352]: cheetahgenerator: Generated 8 
files for report SeasonsReport in 2.12 seconds
Mar 22 07:40:23 raspberrypi weewx[16352]: manager: Daily summary version is 
2.0
Mar 22 07:40:24 raspberrypi weewx[16352]: imagegenerator: Generated 14 
images for SeasonsReport in 1.09 seconds
Mar 22 07:40:24 raspberrypi weewx[16352]: copygenerator: copied 0 files to /
var/www/html/weewx
Mar 22 07:40:24 raspberrypi weewx[16352]: reportengine: Report 
'SmartphoneReport' not enabled. Skipping.
Mar 22 07:40:24 raspberrypi weewx[16352]: reportengine: Report 
'MobileReport' not enabled. Skipping.
Mar 22 07:40:24 raspberrypi weewx[16352]: reportengine: Report 
'StandardReport' not enabled. Skipping.
Mar 22 07:40:24 raspberrypi weewx[16352]: reportengine: Running report 
'forecast'
Mar 22 07:40:24 raspberrypi weewx[16352]: reportengine: Found configuration 
file /etc/weewx/skins/forecast/skin.conf for report 'forecast'
Mar 22 07:40:24 raspberrypi weewx[16352]: cheetahgenerator: using search 
list ['weewx.cheetahgenerator.Almanac', 'weewx.cheetahgenerator.Station', 
'weewx.cheetahgenerator.Current', 'weewx.cheetahgenerator.Stats', 
'weewx.cheetahgenerator.UnitInfo', 'weewx.cheetahgenerator.Extras', 
'user.forecast.ForecastVariables']
Mar 22 07:40:25 raspberrypi weewx[16352]: manager: Daily summary version is 
2.0
Mar 22 07:40:26 raspberrypi weewx[16352]: cheetahgenerator: Generated 12 
files for report forecast in 1.22 seconds
Mar 22 07:40:26 raspberrypi weewx[16352]: copygenerator: copied 0 files to /
var/www/html/weewx/forecast
Mar 22 07:40:26 raspberrypi weewx[16352]: reportengine: Report 'FTP' not 
enabled. Skipping.
Mar 22 07:40:26 raspberrypi weewx[16352]: reportengine: Report 'RSYNC' not 
enabled. Skipping.






On Thursday, March 21, 2019 at 10:01:49 AM UTC-4, mwall wrote:
>
> On Thursday, March 21, 2019 at 7:39:23 AM UTC-4, V. Kelly Bellis wrote:
>>
>> Mar 21 07:30:26 raspberrypi weewx[566]: forecast: XTideThread: XTide: 
>> got no tidal events
>>
>>
> so you are still not getting output from the tide program that the 
> weewx-forecast extens

[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

If the forecast interval has been set to n days, should the tide interval; 
i.e., -b -e, do likewise?

What does restx accomplish and is it a forecast term, linux, xtide, etc., 
and why is it set to be (71400 < 604800) - whatever that means??

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

So far I haven't gotten forecast to run the latest version of tide, but I 
understand that you as a developer might want to support tide users of 
legacy versions, and I find that refreshing - thank you for helping them! - 
and for helping me in trying to get tide to work in forecast.

On Thursday, March 21, 2019 at 9:56:56 AM UTC-4, mwall wrote:
>
> when someone asks "does forecast work with the latest version of xtide?" 
> it is rather handy to have 2 (or 5 or 10) different versions of xtide or 
> its harmonics installed at once so that i can answer accurately.
>
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

[image: line 3906 in forecast_dot_py.PNG]



Does the weewx.conf call of:
prog = /usr/share/weewx/tide.sh
take precedence over the call at line 3906 in forecast.py?


On Thursday, March 21, 2019 at 9:56:56 AM UTC-4, mwall wrote:
>
>
> the default installation assumes that tide is located at /usr/bin/tide
>
> this can be changed with the `prog` option.
>
> as long as the thing referred to by `prog` produces output in the format 
> produced by the 'tide' program (which is unchanged since 1999 or so), then 
> everything works.
>
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Friday, March 22, 2019 at 7:55:12 AM UTC-4, V. Kelly Bellis wrote:
>
>
> Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: XTideThread: XTide: 
> generating tides from 2019-03-22 00:00:00 EDT (1553227200) to 2019-04-19 
> 00:00:00 EDT (1555646400)
> Mar 22 07:40:21 raspberrypi weewx[16352]: forecast: XTideThread: XTide: 
> running command '/usr/share/weewx/tide.sh -fc -df'%Y.%m.%d' -tf'%H:%M' -l'
> Ellsworth' -b'2019-03-22 00:00' -e'2019-04-19 00:00''
>

and what happens when you execute the command directly?  try it:

/usr/share/weewx/tide.sh -fc -df'%Y.%m.%d' -tf'%H:%M' -l'Ellsworth' 
-b'2019-03-22 00:00' -e'2019-04-19 00:00'
 

On Friday, March 22, 2019 at 9:00:34 AM UTC-4, V. Kelly Bellis wrote:
>
> There's a great deal more to xtide than what is used in forecast.
>

yup.  all good stuff, and wonderful that Dave Flater can still find the 
time to keep things updated.  

but if you don't need that other stuff, tide still works the same as it did 
20 years ago, and the results are still reliable.

yay standards!  yay for good design!  yay for not letting marketing 
steamroll your APIs and naming and versioning!  yay for respecting your 
users!  yay open source!

yay Dave Flater!


 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[Andrew Milner]

in the command you issued you requested tide information for the 4 weeks 
from 22 march thru 19 april - so that is why 4 weeks of data was returned.





On Friday, 22 March 2019 17:36:09 UTC+2, V. Kelly Bellis wrote:
>
> It works and produces 4-weeks worth of tide tables  - why 4 weeks and not 
> the same number of forecast days?
>
> [image: tide output to tty.PNG]
>
>
> On Friday, March 22, 2019 at 11:04:16 AM UTC-4, mwall wrote:
>>
>>
>> and what happens when you execute the command directly?  try it:
>>
>> /usr/share/weewx/tide.sh -fc -df'%Y.%m.%d' -tf'%H:%M' -l'Ellsworth' 
>> -b'2019-03-22 00:00' -e'2019-04-19 00:00'
>>  
>>
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Exactly! And was why I questioned that the period isn't matching the 
forecast number of days; e.g., 7 days;
-b'2019-03-22 00:00' -e'2019-03-30 00:00'

[image: 7-day example.PNG]


On Friday, March 22, 2019 at 11:52:44 AM UTC-4, Andrew Milner wrote:
>
> in the command you issued you requested tide information for the 4 weeks 
> from 22 march thru 19 april - so that is why 4 weeks of data was returned.
>
>
>
>
>
> On Friday, 22 March 2019 17:36:09 UTC+2, V. Kelly Bellis wrote:
>>
>> It works and produces 4-weeks worth of tide tables  - why 4 weeks and not 
>> the same number of forecast days?
>>
>> [image: tide output to tty.PNG]
>>
>>
>> On Friday, March 22, 2019 at 11:04:16 AM UTC-4, mwall wrote:
>>>
>>>
>>> and what happens when you execute the command directly?  try it:
>>>
>>> /usr/share/weewx/tide.sh -fc -df'%Y.%m.%d' -tf'%H:%M' -l'Ellsworth' 
>>> -b'2019-03-22 00:00' -e'2019-04-19 00:00'
>>>  
>>>
>>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Thank you Matt for the help, but still no cigar, unfortunately.

Mar 22 13:40:22 raspberrypi weewx[3297]: manager: Added record 2019-03-22 
13:40:00 EDT (1553276400) to database 'weewx.sdb'
Mar 22 13:40:22 raspberrypi weewx[3297]: manager: Added record 2019-03-22 
13:40:00 EDT (1553276400) to daily summary in 'weewx.sdb'
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: MainThread: Zambretti: 
starting thread
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: MainThread: NWS: not yet 
time to do the forecast
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: MainThread: OWM: not yet 
time to do the forecast
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: MainThread: XTide: 
starting thread
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: generating forecast for 2019-03-22 09:00:00 EDT (1553259600)
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: XTideThread: XTide: 
generating tides from 2019-03-22 00:00:00 EDT (1553227200) to 2019-04-19 
00:00:00 EDT (1555646400)
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: using winddir from 2019-03-22 08:30:00 EDT (1553257800) to 
2019-03-22 09:00:00 EDT (1553259600)
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: XTideThread: XTide: 
running command '/usr/share/weewx/tide.sh -fc -df'%Y.%m.%d' -tf'%H:%M' 
-l'Ellsworth' -b'2019-03-22 00:00' -e'2019-04-19 00:00''
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: using pressure from 2019-03-22 06:00:00 EDT (1553248800) to 
2019-03-22 09:00:00 EDT (1553259600)
Mar 22 13:40:22 raspberrypi weewx[3297]: atmocomudp: MainThread: Listening 
for UDP broadcasts to IP address  on port 12000, with timeout 90 
and share_socket True...
Mar 22 13:40:22 raspberrypi weewx[3297]: reportengine: Running reports for 
latest time in the database.
Mar 22 13:40:22 raspberrypi weewx[3297]: reportengine: Running report 
'SeasonsReport'
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: XTideThread: XTide: got 
no tidal events
Mar 22 13:40:22 raspberrypi weewx[3297]: manager: Daily summary version is 
2.0
Mar 22 13:40:22 raspberrypi weewx[3297]: forecast: XTideThread: XTide: 
terminating thread
Mar 22 13:40:22 raspberrypi weewx[3297]: reportengine: Found configuration 
file /etc/weewx/skins/Seasons/skin.conf for report 'SeasonsReport'
Mar 22 13:40:23 raspberrypi weewx[3297]: cheetahgenerator: using search 
list ['weewx.cheetahgenerator.Almanac', 'weewx.cheetahgenerator.Station', 
'weewx.cheetahgenerator.Current', 'weewx.cheetahgenerator.Stats', 
'weewx.cheetahgenerator.UnitInfo', 'weewx.cheetahgenerator.Extras', 
'user.forecast.ForecastVariables']
Mar 22 13:40:23 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: units=1 winddir=22.8282497722 pressure=29.669207315 
first_p=29.7504201375 last_p=29.547317715
Mar 22 13:40:23 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: pressure=1004.71452333 month=2 winddir=1 trend=-2.29261212944 
north=True
Mar 22 13:40:23 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: code is O
Mar 22 13:40:23 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: generated 1 forecast record
Mar 22 13:40:23 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: saving 1 forecast records
Mar 22 13:40:23 raspberrypi weewx[3297]: manager: Added record 2019-03-22 
13:40:00 EDT (1553276400) to database 'forecast.sdb'
Mar 22 13:40:23 raspberrypi weewx[3297]: manager: Daily summary version is 
2.0
Mar 22 13:40:23 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: saved 1 forecast records
Mar 22 13:40:23 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: deleting forecasts prior to 1552671623
Mar 22 13:40:23 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: deleted forecasts prior to 1552671623
Mar 22 13:40:23 raspberrypi weewx[3297]: forecast: ZambrettiThread: 
Zambretti: terminating thread
Mar 22 13:40:28 raspberrypi weewx[3297]: cheetahgenerator: Generated 8 
files for report SeasonsReport in 5.59 seconds
Mar 22 13:40:28 raspberrypi weewx[3297]: manager: Daily summary version is 
2.0
Mar 22 13:40:29 raspberrypi weewx[3297]: imagegenerator: Generated 14 
images for SeasonsReport in 1.05 seconds
Mar 22 13:40:29 raspberrypi weewx[3297]: copygenerator: copied 87 files to 
/var/www/html/weewx
Mar 22 13:40:29 raspberrypi weewx[3297]: reportengine: Report 
'SmartphoneReport' not enabled. Skipping.
Mar 22 13:40:29 raspberrypi weewx[3297]: reportengine: Report 
'MobileReport' not enabled. Skipping.
Mar 22 13:40:29 raspberrypi weewx[3297]: reportengine: Report 
'StandardReport' not enabled. Skipping.
Mar 22 13:40:29 raspberrypi weewx[3297]: reportengine: Running report 
'forecast'
Mar 22 13:40:29 raspberrypi weewx[3297]: reportengine: Found configuration 
file /etc/weewx/skins/forecast/skin.conf for report 'forecast'
Mar 22 13:40:29 raspberrypi weewx[3297]: cheetahgenerator: using search 
list ['weewx.cheetahgenerator.Almanac', 'weewx.chee

[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Matt - How's it going?

One thought that keeps coming up, are any of your tests being done on a 
system where the only xtide installation is v2.15.2?


On Friday, March 22, 2019 at 1:08:39 PM UTC-4, mwall wrote:
>
>
> yay!  i see exactly the same output when i run tide with those options, 
> whether i use tide 2.11 or tide 2.15.2
>
> but your weewx-forecast still gets nothing.  on the other hand, my 
> weewx-forecast *does* see the output and happily parses it.
>
> so the obvious difference is still not so obvious.
>
> please try the attached forecast code to see if that will shed any more 
> light.  it has some additional generate/parse debug output, as well as 
> python3-readiness (not that that will help you, but since i'm in the code, 
> we may as well take care of everything and test tom's python3 changes.  it 
> has been running fine for me.)
>
> after you download forecast-3.4.0rc1.py to the Downloads folder on the 
> pi, the process looks something like this:
>
> sudo mv /usr/share/weewx/user/forecast.py /usr/share/weewx/user/
> forecast-3.2.2.py
> sudo cp ~/Downloads/forecast-3.4.0rc1.py /usr/share/weewx/user/forecast.py
> sudo /etc/init.d/weewx stop
> sudo /etc/init.d/weewx start
>
> m
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Monday, March 25, 2019 at 11:22:28 AM UTC-4, V. Kelly Bellis wrote:
>
> One thought that keeps coming up, are any of your tests being done on a 
> system where the only xtide installation is v2.15.2?
>

i have been testing on a raspberry pi and an x64 box, both running some 
version of debian.  both have old and new xtide on them.

i'll try removing the debian xtide from the pi so see if that gives me 
results like yours (but it won't be for a few days - boats going in the 
water now, so lots of bottom painting and logistics to take care of)
 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Wow - the ice is totally gone out of the Charles? Bet the water is still 
pretty chilly... though I suppose it wouldn't matter all that much on the 
right size boat :)

Whenever you're able to get to it will be just fine; no rush. Maybe me and 
my blind man's cane will wander into the reeds.




On Tuesday, March 26, 2019 at 5:08:21 PM UTC-4, mwall wrote:
>
> On Monday, March 25, 2019 at 11:22:28 AM UTC-4, V. Kelly Bellis wrote:
>>
>> One thought that keeps coming up, are any of your tests being done on a 
>> system where the only xtide installation is v2.15.2?
>>
>
> i have been testing on a raspberry pi and an x64 box, both running some 
> version of debian.  both have old and new xtide on them.
>
> i'll try removing the debian xtide from the pi so see if that gives me 
> results like yours (but it won't be for a few days - boats going in the 
> water now, so lots of bottom painting and logistics to take care of)
>  
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

Hi Matt,

Within the entirety of the forecast extension, is forecast.py the only file 
that contains the path to tide? Are there compiled versions of forecast 
files that may still hold vestiges to tide?

Thank you for any reply.

Kind regards,

Kelly


On Friday, March 22, 2019 at 1:08:39 PM UTC-4, mwall wrote:
>
> please try the attached forecast code to see if that will shed any more 
> light.  it has some additional generate/parse debug output, as well as 
> python3-readiness (not that that will help you, but since i'm in the code, 
> we may as well take care of everything and test tom's python3 changes.  it 
> has been running fine for me.)
>
> after you download forecast-3.4.0rc1.py to the Downloads folder on the 
> pi, the process looks something like this:
>
> sudo mv /usr/share/weewx/user/forecast.py /usr/share/weewx/user/
> forecast-3.2.2.py
> sudo cp ~/Downloads/forecast-3.4.0rc1.py /usr/share/weewx/user/forecast.py
> sudo /etc/init.d/weewx stop
> sudo /etc/init.d/weewx start
>
> m
>

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

/usr/share/weewx/user/forecast.py
@ line 25 "A single table stores all forecast information."

Not sure if I've found the correct database @
/var/lib/weewx/forecast.sdb

If this is the correct file, there aren't any tide forecasts; only NWS, 
OWM, and Zambretti

Is this why the syslog includes:
"Mar 31 16:00:28 raspberrypi weewx[20798]: forecast: XTideThread: XTide: *got 
no tidal events*"
?

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

This is wonderful Matt, thank you so very much!! I will study this and try 
implementing this weekend.

FWIW, I followed the procedure as outlined in the section entitled 
"*Installation 
Guide For New Users of XTide*" that I wrote when I created XTide v2.15.2 
Help (b20190309) 
. 
Although it was written with Ubuntu in play, installation on the RPi was 
nearly identical.

Kind regards,

Kelly


On Friday, April 5, 2019 at 5:24:39 PM UTC-4, mwall wrote:

> please try the attached forecast 3.4.0rc2.py.  i did an install of tide 
> 2.15.2 on a raspberry pi, with no other tide installation, and it works 
> with forecast 3.4.0rc2.py
>
> this is how i compiled libtcd:
>
> ./configure
> make
> sudo make install
>
> this is how i compiled tide:
>
> ./configure
> make
> sudo make install
>
> then i installed the harmonics file:
>
> sudo mkdir /opt/harmonics
> cd /opt/harmonics
> tar xvf ~/Downloads/harmonics-dwf-20181227-free.tar.bz2
>
> this is my tide wrapper at /opt/weewx/bin/user/tide.sh (there are only 2 
> lines in the file):
>
> #!/bin/sh
> HFILE_PATH=/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd
>  
> LD_LIBRARY_PATH=/usr/local/lib /usr/local/bin/tide "$@"
>
> i generated tide output for testing like this:
>
> /opt/weewx/bin/user/tide.sh -l ellsworth -fc -df'%Y.%m.%d' -tf'%H:%M' > 
> /var/tmp/ellsworth.txt
>
> then i verified the tide parsing like this:
>
> PYTHONPATH=bin python bin/user/forecast.py --action=parse --method=xtide 
> --filename=/var/tmp/ellsworth.txt --debug
>
> and that resulted in parsed records:
>
> [{'event_ts': 1554502500, 'dateTime': 1554493866, 'location': None, 
> 'hilo': 'L', 'offset': '0.67', 'issued_ts': 1554493866, 'method': 'XTide', 
> 'usUnits': 1}, ...]
>
> finally, when i run weewx with a configuration that contains tide 
> forecasting, this is what it looks like in the weewx log (with debug 
> enabled):
>
> Apr  5 16:35:52 7up weewx[16424]: engine: Loading service 
> user.forecast.XTideForecast
> Apr  5 16:35:52 7up weewx[16424]: forecast: MainThread: XTide: forecast 
> version 3.4.0rc2
> Apr  5 16:35:52 7up weewx[16424]: manager: Created and initialized table 
> 'archive' in database 'forecast.sdb'
> Apr  5 16:35:52 7up weewx[16424]: forecast: MainThread: XTide: 
> interval=1209600 max_age=2419200 location='Ellsworth' duration=2419200
> Apr  5 16:35:52 7up weewx[16424]: engine: Finished loading service 
> user.forecast.XTideForecast
> ...
> Apr  5 16:35:52 7up weewx[16424]: engine: Starting main packet loop.
> Apr  5 16:40:14 7up weewx[16424]: forecast: MainThread: XTide: starting 
> thread
> Apr  5 16:40:14 7up weewx[16424]: forecast: XTideThread: XTide: generating 
> tides from 2019-04-05 00:00:00 EDT (1554436800) to 2019-05-03 00:00:00 EDT 
> (1556856000)
> Apr  5 16:40:14 7up weewx[16424]: forecast: XTideThread: XTide: running 
> command '/opt/weewx/bin/user/tide.sh -fc -df'%Y.%m.%d' -tf'%H:%M' 
> -l'Ellsworth' -b'2019-04-05 00:00' -e'2019-05-03 00:00''
> ...
> Apr  5 16:40:14 7up weewx[16424]: manager: Added record 2019-04-05 
> 16:40:00 EDT (1554496800) to database 'weewx.sdb'
> Apr  5 16:40:15 7up weewx[16424]: manager: Added record 2019-04-05 
> 16:40:00 EDT (1554496800) to daily summary in 'weewx.sdb'
> Apr  5 16:40:15 7up weewx[16424]: reportengine: Running reports for latest 
> time in the database.
> Apr  5 16:40:15 7up weewx[16424]: reportengine: Running report 
> 'SeasonsReport'
> Apr  5 16:40:15 7up weewx[16424]: reportengine: Found configuration file 
> /opt/weewx/skins/Seasons/skin.conf for report 'SeasonsReport'
> Apr  5 16:40:15 7up weewx[16424]: cheetahgenerator: using search list 
> ['weewx.cheetahgenerator.Almanac', 'weewx.cheetahgenerator.Station', 
> 'weewx.cheetahgenerator.Current', 'weewx.cheetahgenerator.Stats', 
> 'weewx.cheetahgenerator.UnitInfo', 'weewx.cheetahgenerator.Extras', 
> 'user.forecast.ForecastVariables']
> Apr  5 16:40:15 7up weewx[16424]: forecast: XTideThread: XTide: got 222 
> lines of output
> Apr  5 16:40:15 7up weewx[16424]: forecast: XTideThread: XTide: location 
> mismatch: 'Ellsworth' != 'Ellsworth, Union River, Blue Hill Bay, Maine'
> Apr  5 16:40:15 7up weewx[16424]: forecast: XTideThread: XTide: tide 
> matrix: [{'event_ts': 1554458400, 'dateTime': 1554496815, 'location': 
> 'Ellsworth', 'hilo': 'L', 'offset': '0.64', 'issued_ts': 1554496815, 
> 'method': 'XTide', 'usUnits': 1}, ...]
> Apr  5 16:40:15 7up weewx[16424]: forecast: XTideThread: XTide: saving 108 
> forecast records
> Apr  5 16:40:15 7up weewx[16424]: manager: Added record 2019-04-05 
> 16:40:15 EDT (1554496815) to database 'forecast.sdb'
> ...
> Apr  5 16:40:16 7up weewx[16424]: manager: Added record 2019-04-05 
> 16:40:15 EDT (1554496815) to database 'forecast.sdb'
> Apr  5 16:40:16 7up weewx[16424]: forecast: XTideThread: XTide: saved 108 
> forecast records
> Apr  5 16:40:16 7up weewx[16424]: forecast: XTideThread: XTide: deleting 
> forecasts prior to 155207

[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

*Notes on my way to nowhere*

11:41 AM   Saturday, April 6, 2019  (VKB)

Matt says:
then i installed the harmonics file:

sudo mkdir /opt/harmonics
cd /opt/harmonics
tar xvf ~/Downloads/harmonics-dwf-20181227-free.tar.bz2

=
1)
Just checking, should permissions be addressed?, i.e.:
sudo mkdir /opt/harmonics
sudo chmod 755 /opt/harmonics

or are they okay by default?

2)
cd /opt/harmonics
tar xvf ~/Downloads/harmonics-dwf-20181227-free.tar.bz2

This results in failure.
pi@raspberrypi:~ $ sudo mkdir /opt/harmonics
pi@raspberrypi:~ $ cd /opt/harmonics
pi@raspberrypi:/opt/harmonics $ tar xvf 
~/Downloads/harmonics-dwf-20181227-free.tar.bz2
harmonics-dwf-20181227/
tar: harmonics-dwf-20181227: Cannot mkdir: Permission denied
harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd
tar: harmonics-dwf-20181227: Cannot mkdir: Permission denied
tar: harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd: Cannot open: 
No such file or directory
harmonics-dwf-20181227/README
tar: harmonics-dwf-20181227: Cannot mkdir: Permission denied
tar: harmonics-dwf-20181227/README: Cannot create symlink to ‘COPYING’: No 
such file or directory
harmonics-dwf-20181227/Disclaimers
tar: harmonics-dwf-20181227: Cannot mkdir: Permission denied
tar: harmonics-dwf-20181227/Disclaimers: Cannot create symlink to 
‘COPYING’: No such file or directory
harmonics-dwf-20181227/ChangeLog
tar: harmonics-dwf-20181227: Cannot mkdir: Permission denied
tar: harmonics-dwf-20181227/ChangeLog: Cannot open: No such file or 
directory
harmonics-dwf-20181227/COPYING
tar: harmonics-dwf-20181227: Cannot mkdir: Permission denied
tar: harmonics-dwf-20181227/COPYING: Cannot open: No such file or directory
harmonics-dwf-20181227/AUTHORS
tar: harmonics-dwf-20181227: Cannot mkdir: Permission denied
tar: harmonics-dwf-20181227/AUTHORS: Cannot create symlink to ‘COPYING’: No 
such file or directory
tar: Exiting with failure status due to previous errors

3)
pi@raspberrypi:/opt/harmonics $ sudo tar xvf 
~/Downloads/harmonics-dwf-20181227-free.tar.bz2

sudo is required because we're making a sub-directory during extraction; 
i.e., 
/opt/harmonics/harmonics-dwf-20181227

4)
Just checking, should permissions be addressed?, i.e.:
pi@raspberrypi:$ sudo chmod 644 
/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd

or are they okay by default?

5)
Why bury/ nest the harmonics file below /opt/harmonics/
Why not have /opt/harmonics/harmonics-dwf-20181227-free.tcd


Matt says:
this is my tide wrapper at /opt/weewx/bin/user/tide.sh (there are only 2 
lines in the file):

#!/bin/sh
HFILE_PATH=/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd
 
LD_LIBRARY_PATH=/usr/local/lib /usr/local/bin/tide "$@"

=

6)
No such folders exist.

pi@raspberrypi:/ $ sudo mkdir /opt/weewx
pi@raspberrypi:/ $ sudo mkdir /opt/weewx/bin
pi@raspberrypi:/ $ sudo mkdir /opt/weewx/bin/user

Created tide.sh, then
sudo cp /home/pi/weewx/extensions/forecast/tide.sh 
/opt/weewx/bin/user/tide.sh

Here again, just checking, should permissions be addressed?


Matt says:

i generated tide output for testing like this:

/opt/weewx/bin/user/tide.sh -l ellsworth -fc -df'%Y.%m.%d' -tf'%H:%M' > 
/var/tmp/ellsworth.txt



7)
Permission denied.

pi@raspberrypi:/opt/weewx/bin/user $ /opt/weewx/bin/user/tide.sh -l 
ellsworth -fc -df'%Y.%m.%d' -tf'%H:%M' > /var/tmp/ellsworth.txt
bash: /opt/weewx/bin/user/tide.sh: Permission denied

pi@raspberrypi:/opt/weewx/bin/user $ sudo /opt/weewx/bin/user/tide.sh -l 
ellsworth -fc -df'%Y.%m.%d' -tf'%H:%M' > /var/tmp/ellsworth.txt
sudo: /opt/weewx/bin/user/tide.sh: command not found

pi@raspberrypi:/ $ cd  /opt/weewx/bin/user/
pi@raspberrypi:/opt/weewx/bin/user $ ls
tide.sh
pi@raspberrypi:/opt/weewx/bin/user $ 


8)
Has Matt directed to wrong location or is it only an issue of permissions 
to be considered in any of what he outlined?

First, let's try it with permissions set:
sudo chmod 755 /opt/weewx/bin/user/tide.sh

Then once again:
pi@raspberrypi:/ $ /opt/weewx/bin/user/tide.sh -l ellsworth -fc 
-df'%Y.%m.%d' -tf'%H:%M' > /var/tmp/ellsworth.txt
bash: /opt/weewx/bin/user/tide.sh: /bin/sh^M: bad interpreter: No such file 
or directory
pi@raspberrypi:/ $

Issue created by initial creating tide.sh in TextPad on PC, specifically, 
new line in PC mode. Edited again in TextPad and saved as UNIX.

And again:
pi@raspberrypi:~/weewx/extensions/forecast $ /opt/weewx/bin/user/tide.sh -l 
ellsworth -fc -df'%Y.%m.%d' -tf'%H:%M' > /var/tmp/ellsworth.txt
Indexing 
/opt/harmonics/harmonics-dwf-20181227/harmonics-dwf-20181227-free.tcd...

Success! /var/tmp/ellsworth.txt was created YAY!


Matt says:

then i verified the tide parsing like this:

PYTHONPATH=bin python bin/user/forecast.py --action=parse --method=xtide 
--filename=/var/tmp/ellsworth.txt --debug

==

9)
pi@raspberrypi:~/weewx/extensions/forecast $ PYTHONPATH=bin python 
bin/user/forecast.py --ac

[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[mwall]

On Saturday, April 6, 2019 at 2:21:39 PM UTC-4, V. Kelly Bellis wrote:
>
> Trying next:
> PYTHONPATH=bin python /usr/share/weewx/user/forecast.py --action=parse 
> --method=xtide --filename=/var/tmp/ellsworth.txt --debug
>
> Which then reults:
> pi@raspberrypi:/ $ PYTHONPATH=bin python /usr/share/weewx/user/forecast.py 
> --action=parse --method=xtide --filename=/var/tmp/ellsworth.txt --debug
> Traceback (most recent call last):
>   File "/usr/share/weewx/user/forecast.py", line 566, in 
> import weewx
> ImportError: No module named weewx
>

for weewx installed via apt, you want:

PYTHONPATH=/usr/share/weewx python /usr/share/weewx/user/forecast.py 
--action=parse --method=xtide --filename=/var/tmp/ellsworth.txt --debug

you should probably put tide.sh in /usr/share/weewx/user/tide.sh

or maybe create a directory /opt/tide and fill it with:

/opt/tide/tide.sh
/opt/tide/harmonics-dwf-20181227-free.tcd

then adjust paths in tide.sh and weewx.conf appropriately

i put it in /opt/weewx/bin/user/tide.sh because my weewx is installed at 
/opt/weewx

m

 

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[weewx-user] Re: How to Include Modern XTide in Forecasting Extension?

[V. Kelly Bellis]

*YAY MATT!! Success at long last :) THANK YOU MATT!!!*

[image: success at long last.PNG]

My notes along the way to success:
10:07 AM   Sunday, April 7, 2019  (VKB)

Matt says:

for weewx installed via apt, you want:

PYTHONPATH=/usr/share/weewx python /usr/share/weewx/user/forecast.py 
--action=parse --method=xtide --filename=/var/tmp/ellsworth.txt --debug

Results:
pi@raspberrypi:~ $ PYTHONPATH=/usr/share/weewx python 
/usr/share/weewx/user/forecast.py --action=parse --method=xtide 
--filename=/var/tmp/ellsworth.txt --debug
[{'event_ts': 1554590640, 'dateTime': 1554646140, 'location': None, 'hilo': 
'L', 'offset': '0.64', 'issued_ts': 1554646140, 'method': 'XTide', 
'usUnits': 1}, {'event_ts': 1554612480, 'dateTime': 1554646140, 'location': 
None, 'hilo': 'H', 'offset': '11.10', 'issued_ts': 1554646140, 'method': 
'XTide', 'usUnits': 1}, {'event_ts': 1554635100, 'dateTime': 1554646140, 
'location': None, 'hilo': 'L', 'offset': '0.14', 'issued_ts': 1554646140, 
'method': 'XTide', 'usUnits': 1}, {'event_ts': 1554657000, 'dateTime': 
1554646140, 'location': None, 'hilo': 'H', 'offset': '10.76', 'issued_ts': 
1554646140, 'method': 'XTide', 'usUnits': 1}, {'event_ts': 1554679020, 
'dateTime': 1554646140, 'location': None, 'hilo': 'L', 'offset': '0.64', 
'issued_ts': 1554646140, 'method': 'XTide', 'usUnits': 1}, {'event_ts': 
1554700740, 'dateTime': 1554646140, 'location': None, 'hilo': 'H', 
'offset': '11.33', 'issued_ts': 1554646140, 'method': 'XTide', 'usUnits': 
1}, {'event_ts': 1554723720, 'dateTime': 1554646140, 'location': None, 
'hilo': 'L', 'offset': '-0.03', 'issued_ts': 1554646140, 'method': 'XTide', 
'usUnits': 1}, {'event_ts': 1554745500, 'dateTime': 1554646140, 'location': 
None, 'hilo': 'H', 'offset': '10.73', 'issued_ts': 1554646140, 'method': 
'XTide', 'usUnits': 1}, {'event_ts': 1554767640, 'dateTime': 1554646140, 
'location': None, 'hilo': 'L', 'offset': '0.70', 'issued_ts': 1554646140, 
'method': 'XTide', 'usUnits': 1}, {'event_ts': 1554789300, 'dateTime': 
1554646140, 'location': None, 'hilo': 'H', 'offset': '11.48', 'issued_ts': 
1554646140, 'method': 'XTide', 'usUnits': 1}, {'event_ts': 1554812640, 
'dateTime': 1554646140, 'location': None, 'hilo': 'L', 'offset': '-0.10', 
'issued_ts': 1554646140, 'method': 'XTide', 'usUnits': 1}, {'event_ts': 
1554834360, 'dateTime': 1554646140, 'location': None, 'hilo': 'H', 
'offset': '10.62', 'issued_ts': 1554646140, 'method': 'XTide', 'usUnits': 
1}, {'event_ts': 1554856560, 'dateTime': 1554646140, 'location': None, 
'hilo': 'L', 'offset': '0.83', 'issued_ts': 1554646140, 'method': 'XTide', 
'usUnits': 1}, {'event_ts': 1554878280, 'dateTime': 1554646140, 'location': 
None, 'hilo': 'H', 'offset': '11.52', 'issued_ts': 1554646140, 'method': 
'XTide', 'usUnits': 1}, {'event_ts': 1554901860, 'dateTime': 1554646140, 
'location': None, 'hilo': 'L', 'offset': '-0.08', 'issued_ts': 1554646140, 
'method': 'XTide', 'usUnits': 1}]
pi@raspberrypi:~ $

==

Matt says:

you should probably put tide.sh in /usr/share/weewx/user/tide.sh

Then:
pi@raspberrypi:/opt/weewx/bin/user $ sudo mv tide.sh 
/usr/share/weewx/user/tide.sh
=

Matt says:

then adjust paths in weewx.conf appropriately

Then in /etc/weewx/weewx.conf

Looking @ line 639, et als 
#

# Options for extension 'forecast'
[Forecast]
data_binding = forecast_binding
[[NWS]]
lid = MEZ029
foid = CAR
...
[[XTide]]
prog = /usr/share/weewx/user/tide.sh
location = Ellsworth


Success at long last! YAY Matt!
10:32 AM   Sunday, April 7, 2019  (VKB)



On Saturday, April 6, 2019 at 8:17:13 PM UTC-4, mwall wrote:

>
>
> On Saturday, April 6, 2019 at 2:21:39 PM UTC-4, V. Kelly Bellis wrote:
>>
>> Trying next:
>> PYTHONPATH=bin python /usr/share/weewx/user/forecast.py --action=parse 
>> --method=xtide --filename=/var/tmp/ellsworth.txt --debug
>>
>> Which then reults:
>> pi@raspberrypi:/ $ PYTHONPATH=bin python 
>> /usr/share/weewx/user/forecast.py --action=parse --method=xtide 
>> --filename=/var/tmp/ellsworth.txt --debug
>> Traceback (most recent call last):
>>   File "/usr/share/weewx/user/forecast.py", line 566, in 
>> import weewx
>> ImportError: No module named weewx
>>
>
> for weewx installed via apt, you want:
>
> PYTHONPATH=/usr/share/weewx python /usr/share/weewx/user/forecast.py 
> --action=parse --method=xtide --filename=/var/tmp/ellsworth.txt --debug
>
> you should probably put tide.sh in /usr/share/weewx/user/tide.sh
>
> or maybe create a directory /opt/tide and fill it with:
>
> /opt/tide/tide.sh
> /opt/tide/harmonics-dwf-20181227-free.tcd
>
> then adjust paths in tide.sh and weewx.conf appropriately
>
> i put it in /opt/weewx/bin/user/tide.sh because my weewx is installed at 
> /opt/weewx
>
> m
>
>  
>

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