Hi,

My Dell XPS has a HIDPI screen (3200x1800, 294mm x 165mm). I'm under Ubuntu 17.04, latest OpenCPN / oesenc plugin from git compiled locally, and using the French Atlantic OSSENC charts.

OpenCPN wrongly detect my physical screen size as 846mm. However, the chart display is correct, albeit a little cluttered (which I suppose it's normal, it wouldn't be cluttered on a real 846 mm screen).

If I put my real screen width, 294 mm, in the preferences / display / advanced dialog, most of the objects scale correctly, except for the positive soundings (I think this is the only issue, but maybe I missed something else too).

As you can see from the attached screenshot, the line below the soundings seems both scaled incorrectly and at the wrong coordinates.

Any idea ?

I can confirm the misplacement of the underscore for drying depths.
My suggestion would be, leave the width setting (wrongly) on automatic,
Play a little with the setting Options->Display->Advanced->"Chart zoom/scale weighing" for vector charts, and use the shortcut keys to reduce clutter. Where:
"S" hide soundings,
"L" hide lights
"A" hide botom and cable info
"T" hide Text

__________________
Navigation is know where you are and what to do to get where you want.
But also: Know where you don't want to be and what to do to don't get there.

Your suggestion is good, but fixing the bug would be better...

Can please place an entry in the bug tracker? In order to have the bug controlled...

Hubert

That's the same zone (source material in S-57 version) on our XPS 13 HiDPI under Windows 8.1
What happens with OpenGL off?

And btw.: are you happy with Ubuntu 1704 for this particular machine?
Support for the docking adapters?

Hubert

Attached Thumbnails

 

Done: FS#2230 - Wrong scaling of OESENC drying depths on Linux w/ HIDPI screen

So the bug is present under Windows too.

Still present with OpenGL off.

This is an XPS 13 9360, and I'm quite satisfied with the hardware. As for the software, I had previously the 1610 version, and it worked flawlessly ! No issue at all with anything. Since the upgrade, I have intermittent problems with suspend, wifi, usb, sound... I expect all those to slowly fix themselves with later upgrades, but right now it's not the best Ubuntu version I had (and I had plenty...)

Sorry, but I don't have any.

bcn/stelian...

Neither picture is very nice. I'll add the bug to my list.

Thanks for the catch
Dave

FYI, I probably found the cause and proposed a patch in FS: https://opencpn.org/flyspray/index.p...s&task_id=2230

Stelian.

Stelian,

there have been a problem with drying heights in all versions of S-57 based vector charts - not just for hiRes screens. This is getting addressed by new plug-ins for oeSENC and S-63 and the next version of OpenCPN.

Tested already and will get released soon.

Thank you for your efforts as well!

Hubert

This is great news !

Too bad I didn't knew the problem was already fixed, this could have saved me a few hours of debugging time... Well, at least I learned a few things about vector charts objects

Stelian.

stellian...

Yes, you did. And the more people know about the internals of OCPN, the happier I am.

The has been a lot of work behind the scenes, and un-committed to github, that tries to improve graphics pixel density independence of all aspects of OCPN. We see more and more high density displays, so the old-fashioned (XP generation) practice of using "pixels" as measurement units is becoming less and less relevant. We are trying to knock them down one-by-one, getting better at each release.

Thanks
Dave

Thank YOU !

Stelian.