Weather Routing

[did-g]

Originally Posted by rgleason

No I did not check. Its the version checking. Can build for win tonight if that will help, but it will be 10 hours before I can do it

Hi

It's not only the version checking, the new grib record format is really incompatible with weather routing, you have to copy and paste GribRecord.cpp and GribRecord.h from grib plugin.

Anyway I think Weather Routing is still getting grib current wrong (it adds when it should subtract current vectors).

Until Sean is back I'll try to publish a modified version on github.

[nohal]

Rick...
You don't have to build anything, ever, we need testing of *released* versions - Exactly what Littlechay did.

Pavel

[rgleason]

Well, Pavel, I did build it, just now and tested it, the plugin runs, but it will not do routing with two gribs (saildocs+current), probably wx-routing is confused by the overlapping grib+current files.

weather_routing_pi.cpp line 206
static bool shown_warnings;
if(!shown_warnings) {
shown_warnings = true;

int grib_version = v[_T("GribVersionMajor")].AsInt() * 1000 + v[_T("GribVersionMinor")].AsInt();
if(grib_version < 2003 || grib_version > 3000) {
wxMessageDialog mdlg(m_parent_window,
_("Grib plugin version not supported."),
_("Weather Routing"), wxOK | wxICON_WARNING);
mdlg.ShowModal();
}
}

GribVersionMajor=4 and GribVersionMinor=1 so the number is 4001
Therefore line 206 weather_routing_pi.cpp "3000" should change to "5000"

Opencpn v4.2.1706 hangs up (sometime black screen with menus) and round blue processing circle, and I have to restart. Also the last routing is wiped off the configuration file when O hangs.

See screenshots below. I can upload the files I used later, and I can mess with it after I get boot top painted and ready to splash. Pavel will probably have it working by then though!

[seandepagnier]

Rick,

Can you simply concatenate the two grib files into one single file and load that with the grib plugin?

[rgleason]

Sean! You're on line. Welcome back! Good to hear from you. What port? = I' ll try concatinate tonight. We have first good day to paint in a week.

[rgleason]

Sean, I built Pavel's version which you merged 21 hours later.
Wx-route still has issues. It's pretty basic, can't run a simple Saildocs GFS routing, O fails. See
https://github.com/seandepagnier/wea...ting_pi/issues

Sorry, its not fixed yet.

[rgleason]

Sean, I was going to try to compile a new version of wx-routing that supports grib2, but I think I read thatyou are working on it. Should I wait?

[JCFlander]

Hello, sorry if these questions are already covered somewhere on these 62 pages, but...

1. I try to make a route from Falmouth to LasPalmas with climatology. It ony gives state:failed on configurations window. Any advice on how to make this work?

2. Some difficulty to make sensible polars. Sofar, i just added boat data, pressed "compute" so it gives drag estimates, and slided "Eta" somewhere to 0.01 so that 15 knots gives 6 knots close hauled and 8kn downwind. Is this anywhere on the right track?
Is there "instruction manual" for editing boat.xml somewhere yet? opencpn man page doesn't seem to address this yet.

Cheers, JCF

[rgleason]

JCflander, OS ? OpenCPN version ? Weather_routing version ?.

I am unable at present to make this work with 4.2.0 upwards due to WxRouting problems & bugs.

I also tried an earlier version 4.0 but I believe the 3.2 version of climatology does not work with it as I get errors.
I believe there should be a 4.0 version of climatology.

It should work.

[tom_BigSpeedy]

I have the same problem with the current being in a separate Grib file.

But sorry guys, manually concatenating Grib files each time is worth a trial, but not a solution.

Despite the fact that it exludes the majority of all windows users (due to the lack of shell command abilities like cat grib_a grib_b > grib_c) I wonder if weather routing would handle the concatenated file correctly if both gribs come in different zip file formats ... ?
Didn't try that yet ...

I'd love to see an option to load a second grib file, which is handled (e.g.) with priority B in case of concurrent data sets ...

Thomas

[rgleason]

Thomas, I am finding that Sean's new Weather-Routing version 1.10 which is built for Opencpn v4.2.1 is failing both Climatology and Grib in the Windows version.

I have been trying to run the Debug version in MSVC++ with Grib_pi and unfortunately it fails but no messages except failed. I think I need to put breaks in somewhere to determine what is happening, but I don't know where...

Are you using Linux or Windows? If I were to put a built version of Sean's current weather-routing up on file thingie, could you test it? I am hoping to find a Windows user to confirm my findings.

[rgleason]

After trying to get Sean's recent changes to weather-routing_pi working for OpenCPN v4.2.1 with little success in Windows10,
I thought I'd try Pavel's fork, which is behind, just to find out if I am not crazy. It's very nice to find this plugin works for me in v4.2.0 for both Gribs and Climatology.
Attached are some screenshots.
Falmouth to LasPalmas 6/8, today 4 days 2 hours Climatology, 4 days 9 hours recent grib. This was using a very fast boat polar 60ft_Multi_3.pol

I am going to upload it to File Thingie for others to use in OpenCPN version 4.2.0 until Sean's gets running.

[rgleason]

Git fetched and built weather_routing_pi from Sean's repos branch:master
https://github.com/seandepagnier/wea...7d3fd55518b3dc

In OpenCPN v4.2.1 with Win10 Tried it with the same grib file and climatology. Same setup and it failed for both Grib and Climatology.

[tom_BigSpeedy]

Originally Posted by rgleason

Are you using Linux or Windows? If I were to put a built version of Sean's current weather-routing up on file thingie, could you test it? I am hoping to find a Windows user to confirm my findings.

Rick,

I just compiled latest sources from weather routing in Win7 64 bit, wxWidgets 3 and VSC 13

I don't get it running with an existing route from my race (which did work then).
I also tried downloading a new zygrib file and set time to "now".

I only get "Failed", nothing more.

I do not use Climatatology as backup source.

Thomas

PS : I backed up the old dll, which I will restore now

Update :
Just to confirm, I just tested my "restore" sucessfully.
The "old plugin version" I compiled with sources from May 27th does calculate exactly the same route with the same grib correctly.

[dwoodall]

Originally Posted by rgleason

Git fetched and built weather_routing_pi from Sean's repos branch:master
https://github.com/seandepagnier/wea...7d3fd55518b3dc

In OpenCPN v4.2.1 with Win10 Tried it with the same grib file and climatology. Same setup and it failed for both Grib and Climatology.

Rick,
Your not crazy. I couldn't get the github version to work either. It either hangs or says "fail" with no further explanation. I was waiting on Jon to get us a new version before I tried again.

Regards,
Doug