Weather Routing

[hoolie]

Actually jongough is the developer of the OD plugin. Try posting here as you're more likely to get a constructive response.

[jongough]

Originally Posted by did-g

Now that we have SQLITE requirement maybe using in memory DB with or without RTREE could make it faster.

For OD points it's the way data are stored in draw , there's no separate list or index for points in boundaries and isolated points.
When testing if a route crosses OD points you have to test every points in boundaries and isolated for the 'isolated condition' and it's time consuming, even if you have no OD points.

With Gilletarom xml data (lot of points in boundaries and very little isolated OD points), removing the OD points test make computing a routing 7 time faster, as measured on my box.

Hi, one way of addressing this would be to add a flag to the JASON msg/ODAPI to control the testing of boundary points. Currently boundaries are checked first then boundary points. They are all checked to find the closest crossing which is then returned.

I am currently working on OD 1.5 (beta for 1.6) and am making some changes to help with this. As some of these changes change the way OD works I don't want to do it in 1.4. Currently there are two new calls and I am sure there will be more. One of these calls is to create boundaries which I am sure would help. We are changing the usage of OD from a user drawing tool to add a system/automatic drawing tool, then using the outcomes for very intensive processing. The original weather routing and watchdog interactions we're 'demonstrations' with simple usages, i.e. is the boat going to go where it shouldn't? This is quite a change and needs serious thought to get it right, make it maintainable whilst not breaking the user drawing part. This may take a little while.

Can you please raise flyspray requests so I can keep track of it all. Remember today's 'hacks' are capability tests but cannot be released as they are 'hacks', but the ideas and usages can be incorporated into the next release.

Regards
Jon

[Gilletarom]

Originally Posted by kevinvh

Hi Gilletarom,

Not sure if this is the place to raise this, but I think there is a small problem with the OCPN Draw PI. I am using a MacBook Pro, OpenCPN 4.8.2 and OCPN Draw 1.4. I cannot turn off the Boundary Point Icons after unchecking "Show Boundary Point Icons" in the Boundary Properties window. I would like to turn the icons off as they clutter the screen when I zoom out.

This is a question for JonGough.
And the best is to move it here:
http://www.cruisersforum.com/forums/...187632-10.html

[Gilletarom]

Hello All,

Just to point out two incomprehensible things in WR.

See the two screenshots:
- In the first, we observe 4 lines: "True wind" and "Wind Dir". Can we understand that these 4 lines are incomplete, or think that two lines would be sufficient? The way these items are displayed should be improved.

- "VER" ? What is this ? In french, the translation is "Vertical". But is this translation is correct ? And if we check this checkbox, nothing occur ... So Help ?????

[rgleason]

True Wind Speed
True Wind Direction
Apparent Wind Speed
Apparent Wind Direction

see Terminology

Vertical - can't help

[Gilletarom]

Originally Posted by rgleason

True Wind Speed
True Wind Direction
Apparent Wind Speed
Apparent Wind Direction

see Terminology

Vertical - can't help

Thank. I will do some tests taking into account this information.

But, Sean, Did-g or Stalian, think of alpha users. An adaptation of the window is necessary.

[rgleason]

Originally Posted by Gilletarom

Thank. I will do some tests taking into account this information.

But, Sean, Did-g or Stalian, think of alpha users. An adaptation of the window is necessary.

I agree, users should not have to look for it in the code.

You could take out the word "Wind" to shorten it, or you could use wxformbuilder to make the entries so they are visible.

Also I am still trying to understand how & why the graph actually changes, in Polar, say between True Wind Speed and True Wind Direction. I am trying to visualize/understand this change and what the various polar scales represent for each graph.

Also Gille asked what the "Vert" check does and I have the same question.

Thanks!

[rgleason]

Compiled very recent

C:\Users\Frederick\Documents\GitHub\weather_routin g_pi\build>git branch -va
* master bd9a2f1 Merge pull request #159 from theeko74/barbs

Which is also available here for Windows testers.
It seems faster running Gilletarom's routes.

View Settings Show all alternates for routes is unchecked.
It is lucky that some of the routes are still shown, but whey are they there?
Why is it lucky some of the alternate routes are shown? They provide a black background for the new (very nice) route wind barbs to show clearly.

I would very much like to pick a brighter stronger color for these route wind barbs!

Also it would be nice to have an option to not show any alternate routes.

Will test some more.

[rgleason]

I did not have boundaries checked or Optimize tacks so it is not as fast as I thought, but I think it is faster.

Now I really do not understand why all these alternate routes are displayed. I have it turned off and previously these black lines that obscure isochrones did not display when I had Display alternate routes unchecked.

[seandepagnier]

Rick,

In the Settings you can set the alternate route thickness to zero.

[rgleason]

Originally Posted by boat_alexandra

Rick,
In the Settings you can set the alternate route thickness to zero.

Ah ah, it must have changed! Thank you. I am going to make a note in the wiki FAQ.

[rgleason]

FAQ item is entered. I changed the Grib Wind, picking Grib > Settings "Wind" Wind barb "Controlled Colors" so that I could see the "Optimal Route" Wind feathers. It is a little better, but could be improved I think, for such a great feature!

[kevinvh]

Originally Posted by rgleason

Compiled very recent

Which is also available here for Windows testers.
It seems faster running Gilletarom's routes.

View Settings Show all alternates for routes is unchecked.
It is lucky that some of the routes are still shown, but whey are they there?
Why is it lucky some of the alternate routes are shown? They provide a black background for the new (very nice) route wind barbs to show clearly.

I would very much like to pick a brighter stronger color for these route wind barbs!

Also it would be nice to have an option to not show any alternate routes.

Will test some more.

Hi Rick - is there a compiled Mac version of WR PI 1.11.1 available for testing yet?

[rgleason]

KevinH,
I am sorry but I do not know how to compile for MacOS. MacOS is often compiled by Pavel [nohal] and Peter Tulp [ptulp]. Pavel is quite busy most of the time and Peter not really available right now. Sorry, perhaps a mac user will help. We would really like to have mac user testing these plugins too, if we can get the PI compiled without too much trouble. Right now it is changing fast and it might be better to wait a little while.

Sean
I downloaded the Win file Bump Version from here https://ci.appveyor.com/project/sean...0.51/artifacts

It runs nicely. with the Optimal Route Feathers! The example files and configurations were not changed yet, but they did run properly. See screenshot

[kevinvh]

Originally Posted by rgleason

KevinH,
I am sorry but I do not know how to compile for MacOS. MacOS is often compiled by Pavel [nohal] and Peter Tulp [ptulp]. Pavel is quite busy most of the time and Peter not really available right now. Sorry, perhaps a mac user will help. We would really like to have mac user testing these plugins too, if we can get the PI compiled without too much trouble. Right now it is changing fast and it might be better to wait a little while.

Sean
I downloaded the Win file Bump Version from here https://ci.appveyor.com/project/sean...0.51/artifacts

It runs nicely. with the Optimal Route Feathers! The example files and configurations were not changed yet, but they did run properly. See screenshot

Can I learn how to compile for Mac? Where can I get the information and resources? What will I need?