maemo.org - Talk - [MOD] Enable Traffic/Automatic day-night in Drive & Traffic in Maps

maemo.org - Talk (https://talk.maemo.org/index.php)

- Nokia N9 / N950 (https://talk.maemo.org/forumdisplay.php?f=51)

- - [MOD] Enable Traffic/Automatic day-night in Drive & Traffic in Maps (https://talk.maemo.org/showthread.php?t=85353)

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

So I took a look at http://en.wikipedia.org/wiki/Sunrise_equation and http://users.electromagnetic.net/bu/...unrise-set.php

The drive-qml approximation for the declination is legit, it is equation 3 from http://solardat.uoregon.edu/SolarRadiationBasics.html

What seems to be missing is probably a better approximation of the sun transit, i.e. the true sun noon.

Otherwise, just some signs were apparently wrong in the sunrise/sunset calculation, with that fixed, it works well enough for me.

This is the patch: http://paste.debian.net/download/178685

Or inline:

Code:

--- /usr/lib/drive-qml/models/MapSettingsModel.qml.orig

+++ /usr/lib/drive-qml/models/MapSettingsModel.qml

@@ -135,8 +135,8 @@

         var lat_rad = pos.latitude * (Math.PI/180);

         var declination = (23.4*Math.PI)/180 * Math.sin(2*Math.PI * (284+dayOfTheYear)/365);

         var omega = Math.acos(-Math.tan(declination) * Math.tan(lat_rad));

-        var sunset = 12 - (1/15) * omega * (180/Math.PI) - pos.longitude/15 + today.getTimezoneOffset()/60;

-        var sunrise = 24  - sunset; //(1/15) * omega * (180/Math.PI) - pos.longitude/15 + today.getTimezoneOffset()/60;

+        var sunset = 12 + (1/15) * omega * (180/Math.PI) - pos.longitude/15 - today.getTimezoneOffset()/60;

+        var sunrise = 12  - (1/15) * omega * (180/Math.PI) - pos.longitude/15 - today.getTimezoneOffset()/60;

 

         console.log("Sunset:" + sunset);

         console.log("Sunrise:" + sunrise);

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

my output while patching:
patching file MapSettingsMode.qml
Hunk #1 FAILED at 135.
1 out of 1 hunk FAILED -- saving rejects to file MapSettingsModel.qml.rej

Could someone help?

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

Quote:

Originally Posted by mbanck (Post 1236332)

Code:

--- /usr/lib/drive-qml/models/MapSettingsModel.qml.orig

+++ /usr/lib/drive-qml/models/MapSettingsModel.qml

@@ -135,8 +135,8 @@

         var lat_rad = pos.latitude * (Math.PI/180);

         var declination = (23.4*Math.PI)/180 * Math.sin(2*Math.PI * (284+dayOfTheYear)/365);

         var omega = Math.acos(-Math.tan(declination) * Math.tan(lat_rad));

-        var sunset = 12 - (1/15) * omega * (180/Math.PI) - pos.longitude/15 + today.getTimezoneOffset()/60;

-        var sunrise = 24  - sunset; //(1/15) * omega * (180/Math.PI) - pos.longitude/15 + today.getTimezoneOffset()/60;

+        var sunset = 12 + (1/15) * omega * (180/Math.PI) - pos.longitude/15 - today.getTimezoneOffset()/60;

+        var sunrise = 12  - (1/15) * omega * (180/Math.PI) - pos.longitude/15 - today.getTimezoneOffset()/60;

 

         console.log("Sunset:" + sunset);

         console.log("Sunrise:" + sunrise);

This works very well.
Now, what seems to be missing is that it will actually refresh the daylight settings on a scheduled basis, or at least at app start.
ATM it seems to only change if you enter settings and press auto :0

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

mbanck
Good job, man. It's seems to work.

thedead1440
Edit it manually.

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

When you click on the toggle item for the traffic mode in the main settings screen, you can see that the label changes to "Hide traffic" for a fraction of a second before the screen is closed - But when the settings screen is opened again, the label is still set to "Show traffic". So I found out this small UI improvement:

In assistanceModeSettingsPage.qml, line 207 (inside the block "onBeforeShow:"), you can add the following line:

buttonModel.updateTraffic();

This will show the label "Hide traffic" and the corresponding icon if traffic has been activated.

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

i think, the better way to switch day/night is to use the lightsensor... it´s more helpfull in tunnel...
is there a possibility to realice so?

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

I would also prefer a solution in help of the light sensor. I think this is a better way to switch between day and night.

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

Quote:

Originally Posted by MaikEF (Post 1236478)

i think, the better way to switch day/night is to use the lightsensor... it´s more helpfull in tunnel...
is there a possibility to realice so?

Quote:

Originally Posted by jimthefly (Post 1236497)

I would also prefer a solution in help of the light sensor. I think this is a better way to switch between day and night.

See previous page (here)...

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

Until we find a way to sort of loop the isNght function so it checks every so often, the Light Sensor won't work efficiently as it will only check the light sensor on start-up and then set the map colours accordingly and then stop checking light sensor.

We need a way of it to keep checking either light sensor or comparing the current time to the Sunset/Sunrise to make it truly automatic switching.

Probably what the plugin they were missing was meant to do!

Re: [MOD] How to enable Traffic/Automatic day-night in Drive for PR1.2/1.3

Quote:

Originally Posted by nailwood (Post 1236462)

Thanks for this perspicuous Fix, I like guys verifying behavior of modifications.

Now, the button to switch traffic on/off be refreshed properly ...

Also, I have reread all the thread, but not be able to find how to add the "auto" tick option, there is only the 2 original options "day" & "night" tick options.

If someone have the modification, feel free to put it here ...

A++