Weather Routing

[rgleason]

C:\...\opencpn-git>git checkout master
Previous HEAD position was f13e4b8... routing corrections, and current direction
 correction
Switched to branch 'master'
Your branch is behind 'origin/master' by 3 commits, and can be fast-forwarded.

C:\...\opencpn-git>git fetch --all
Fetching origin
Fetching sean

C:\...\opencpn-git>git pull
Updating 36c7f6a..56c1de5
Fast-forward
 include/options.h   |  6 +++---
 po/opencpn_nl_NL.po |  2 +-
 src/options.cpp     | 12 ++++++------
 3 files changed, 10 insertions(+), 10 deletions(-)

C:\...\opencpn-git>git branch -a
* master
  remotes/origin/HEAD -> origin/master
  remotes/origin/beta30_stable
  remotes/origin/beta31_stable
  remotes/origin/master
  remotes/origin/release32_stable
  remotes/origin/stable
  remotes/sean/beta30_stable
  remotes/sean/beta31_stable
  remotes/sean/grib_enhancements
  remotes/sean/master
  remotes/sean/stable

C:\...\opencpn-git>git checkout sean/grib_enhancements
Previous HEAD position was 56c1de5... Merge pull request #41 from kheyse/dutch_localization_fix
HEAD is now at f13e4b8... routing corrections, and current direction correction

C:\...\opencpn-git>branch -a
'branch' is not recognized as an internal or external command,
operable program or batch file.

Now what? Can't seem to get it to point to sean/grib_enhancements

[rgleason]

There is no grib_enhancements directory. grib_enhancements is the name of the branch in my forked OpenCPN repository on github. You will know if you have the grib enhancements because you will be using version 2.1 of the grib plugin (see in the plugin setup)

As for the zlib.h thing.. how did you ever compile the original grib plugin in the first place?[/CODE]The other errors are informative I should basically have them all fixed in the next revision

Compiled it. both in CMD window and MSVC. See attached files.
I copied the compiled opencpn-git/build/plugins/debug/grib_pi dll into the
build/plugins directory

Then brought up Opencpn in Debug and found Grib_pi Version 2.1!!!
So I do have the correct branch now.

About the zlib.h "cannot open"" There are grib-pi\src\Zufile.h [33] references in the attached files looking for zlib.h.

I will git checkout master and then do a search for the file next.
Also attached is an image from the grib_pi (enhanced). Pretty nice!

[rgleason]

C:\...\opencpn-git>dir *zlib.h /s
 
 Directory of C:\Data-Dart\Up-Soft\Navigation\opencpn-git\plugins\grib_pi\src\bzip2

03/11/2013  07:34 AM             7,833 bzlib.h
               1 File(s)          7,833 bytes

 Directory of C:\...\opencpn-git\plugins\grib_pi\src\zlib-1.2.3
03/11/2013  07:34 AM            66,188 zlib.h
               1 File(s)         66,188 bytes

     Total Files Listed:
               2 File(s)         74,021 bytes
               0 Dir(s)  368,137,146,368 bytes free

C:\Data-Dart\Up-Soft\Navigation\opencpn-git>

Hope this answers the question about zlib.h

[rgleason]

Sean,

Regarding Polauto Polar Filtering and Polar Diagram creation from real Nmea data.

First some threads on Cruisers Forum Ocpn

http://www.cruisersforum.com/forums/...ml#post1177960

http://www.cruisersforum.com/forums/...ml#post1134125

This Post has the links and program.
http://www.cruisersforum.com/forums/...ml#post1177958

Hope you find it interesting.
One of recent ideas was to store a data point cloud show it on a screen and store it (allowing control by user on and off) and then have the program run the file and do curve fitting to get the polars, because the variables are just that very variable.

[rgleason]

Here is the other longer development thread on hisse-et-oh.com

[seandepagnier]

Originally Posted by cagney

Testing on Kubuntu 12.10 amd64.
No problems compiling and getting started.

Attachment 57183

I can't see the lower part of the dialog above.
Clicking "Generate" freezes the computer. Had to force a "xkill".

I fixed that, but its probably if you entered an invalid step size, or left the box blank

Attachment 57184

The basic concept works, as seen above.
I could not get the hang of entering departure and destination by clicking, so I entered it manually.
Check the yellow route...Computation continues inland between "The Wash" and "River Humber".
As you said, slow, but a very nice start.
Thanks for all your fantastic plugins!!!

Thomas

Hmm.. looks like a 0 meridian issue possibly. You have a really small step size.. my computer would take an hour or more to generate that! Anyway, I improved the threading a lot, and I estimate approximately 4x speedup should be doable, possibly more. Added plotting today, and it can convert the route into an opencpn track.

[rgleason]

I realized git checkout was not working all the time, and it was causing problems when I went to use sean/grib_enhancements so this post is what I did after a bit of a struggle to get the branch pointer to move from *no branch or *origin/master.

When I got onto sean/grib_enhancements and from plugins directory git clone weather_routing_pi and then cmake from the CMD prompt. See output.

Then went to MSVC and ran Build Debug and Build Release. See output.

Then found a "DATA" file like the one for Celestial_Nav in opencpn-git/plugins/weather_routing_pi/DATA so I copied that to opencpn-git/build/weather_routing (new directory)

The I reran MSVC Debug. See output file.

Weather_routing failed. several problems. isnan zufile(33) etc. The Plugin did not seem to compile

Have Grib 2.1 running and it seems to work ok. Haven't tested it much lately.

[seandepagnier]

Good to see some progress. So the grib compiles fine at least. I am taking note of your reports so the errors should mostly go away with the next version.

Give me a few days for weather routing.. I have been optimizing it. Today now it is something like 8 times faster, but I know I can make it twice as fast very easily.. the tricky bit is to make it another 8 times faster which requires some work..

[rgleason]

Thats fine Sean. I don't know how you do so much at once, I wouldn't be able to keep it straight. I think you'll also get the celestial_nav the next time, too. Just let me know...also what files you prefer..

1. Debug or Release? (output, log files, error files) Is one or the other better? --DEBUG files?
2. Output file if it does not compile successfully.
3. ../build/plugins/<plugin name>.dir/debug/<pluginname>. log?
4. c:/programdata/opencpn/ opencpn.log and opencon.ini -When?
5. Screen shot of failure? When?

I'd like to cut down on files uploaded, so some ground rules would be helpful. Thanks. I'm getting better at this I think.



Best

[seandepagnier]

Originally Posted by rgleason

Thats fine Sean. I don't know how you do so much at once, I wouldn't be able to keep it straight. I think you'll also get the celestial_nav the next time, too. Just let me know...also what files you prefer..

1. Debug or Release? (output, log files, error files) Is one or the other better? --DEBUG files?
2. Output file if it does not compile successfully.
3. ../build/plugins/<plugin name>.dir/debug/<pluginname>. log?
4. c:/programdata/opencpn/ opencpn.log and opencon.ini -When?
5. Screen shot of failure? When?

I'd like to cut down on files uploaded, so some ground rules would be helpful. Thanks. I'm getting better at this I think.



Best

Just send build log if it doesn't compile, and stack trace if it crashes..

Usually use debug, but if debug works and release doesn't you could send release

[seandepagnier]

So uh I got the inverted routes working better. I couldn't get qtvlm to even pretend to do this, and I doubt most other weather routing supports it.. It can find local minimas like locations that are completely surrounded by locations that take less time to reach.

It took me 2 hours to change the last 5 characters, its getting to be extremely difficult to debug. Also the logic is more than twice as complex just to support this... see the cyan lines are inverted.. you can sail around the island faster than making it back into bay of plenty.. so its a local minimum, but can be reached all the same.

[seandepagnier]

____________

[rgleason]

Should I try to compile it now?

[rgleason]

Did not compile.

[rgleason]

While I was in the other branch, I thought I would git clone WxRt & build in hopes it would compile. Unfortunately it didn't. I guess you're working on it. All the others plugins seem to compile better. Thanks.