Disturbances are not just atmospheric, it happens that they are also in the transmission of GRIB files !
Some of you alert me for two or three days about difficulties to receive files, or the absence of data displayed in iNavX.
After checking in requesting last night from my iPad, I was forced to note, once a file loaded after long minutes of waiting, that the data were not displayed on the chart. By checking the GRIB display with MacENC, only the wind vectors appeared, but not the contours. So I contacted by myself Richard Ray who, thanks to jet lag, was able to react immediately. Some exchanges with Jim Corenman, GRIB file administrator at SAILDOCS (*), allowed him to discover the source of the issue, namely a modification of the transcription of latitudes and longitudes :
I did make some recent changes to Saildocs' internal handling of latitude / longitude, To agree with other models (GRIB forecast). There's no requirement that a grib be "normalized" to -180° (West) at +180 ° (East). Grib viewer needs to be able to display any format (including positive or negative dLat and dLon). That was also the problem I ran into with other models, so I am normalizing everything internally to 0 - 360 °, Without negative longitude.
So Rich Ray has, on his advice, re-work its files code for x-traverse server to handle all GRIB format, And just let me know that it was now operational. This is the result, tonight at 9:00PM :
GRIB in Incax on iPhone and iPad
And the same file with Macenc :
On the other hand, Jim Corenman said they had changed their server Saildocs on last wednesday, which explained the difficulties of access to the files during the hours which followed the migration.
So everything comes in order, And we can applaud Rich Ray's speed of reaction to satisfy users of its applications !
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(*) SAILDOCS.COM is one of the main online suppliers of the Noaa GRIB files. Their answering machine by email allows you to obtain files automatically from software (like iNavX) or a messaging application.
Oui, Very just unlucky, This is when I was leaving for 1 000 nautical miles. Suddenly Ugrib and Mac Enc, the 1 000 miles it went well, A little wind anyway, The boat lying once in Windward Passage, But no big bad (cyclone), nor. The cold front season begins in November in Cuba and the winds can reach 60 knots (it seems "he), So I was still wary a little. See you soon, Go to the living room ? … nautical !!!
Bravo to Francis for his availability, Thank you to the developers for the speed of the intervention after Francis's call. However, I stayed more than three days without weather information. Fortunately I was very warm on the ground ! This will not be the case next week; We can therefore wonder about the current impossibility of loading files elsewhere in the event of a problem.
PS: I'm not sure that this is an in -adexed code problem, Indeed the application is given to operate without loading a new version. On the other hand, the analysis of the files received obviously showed the presence of "esoteric" characters which disappeared Sunday morning.
Not an in -adox code problem, But code to translation the Grib before depositing them on X-Traverse (There is an intermediate "reel").
You can always set off on your personal X-Traverse space another file In Grib (.grb) Then that it will be enough to ask since Incax.
Thank you again ! What would we do without Francis
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