0 - OpenCPN - Feature Requests

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Tasklist

FS#281 - Adjustment of screen luminosity using DarkAdapted

Attached to Project: 0 - OpenCPN - Feature Requests
Opened by Tore Christiansen (sinbad7) - Sunday, 05 December 2010, 04:34 GMT-7
Last edited by Serge Davenel (AISEAG) - Thursday, 08 August 2013, 14:40 GMT-7
Task Type Feature Request
Category Backend / Core
Status Closed
Assigned To Dave (bdbcat)
Operating System All
Severity Low
Priority Normal
Reported Version future version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

At the suggestion of one of our members I downloaded DarkAdapted (www.darkadapted.com) to try it out with OpenCPN.

I have nothing but compliments to give for this great utility,BUt unless I have missed something in the setup,it does
NOT adjust WHITE luminocity. All my charts with a white sea background are therefore displayed in glaring white whilst
all other coloured features of the map have the luminocity properly adjusted.

I have asked the developers for advice regarding this and to possibly add a feature to also dim white areas.
This task depends upon

Closed by  Serge Davenel (AISEAG)
Thursday, 08 August 2013, 14:40 GMT-7
Reason for closing:  Cleanning 2013
Additional comments about closing:  this functionnality can be performed by pressing F6 or Shift F6
Comment by Tore Christiansen (sinbad7) - Monday, 06 December 2010, 01:31 GMT-7
Here is the answer from the developers of DarkAdapted:

Hello Captain Christiansen,

Thanks for your message!

Unfortunately, it is Windows that defines how the standard gamma routines are implemented, and Windows has always ignored white when adjusting screen color. I am not sure why they do it this way, but they have been consistently doing so ever since I first wrote DarkAdapted many years ago.

Some users report success using different Windows appearance themes, but it has never been satisfactory for me.

This is actually the main reason that there is no DarkAdapted Pro for Windows. On the Mac side, they properly (IMHO) implement the operating system gamma routines, which affects all colors including white.

There's a more in-depth discussion of all this on page 45 of the 2.3.7 User Guide.

Sorry I didn't have better news for you. :-(

Best wishes,

Steve

--
Stephen E. Hutson
AquilaDigital Partnership
--
www.aquiladigital.us
support@aquiladigital.us
Comment by Dave (bdbcat) - Tuesday, 12 April 2011, 21:04 GMT-7
Alternative approach taken for Beta 2.4.412.

Enjoy:)

Dave

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