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List:       flightgear-devel
Subject:    Re: [Flightgear-devel] Canvas MapLayer for OpenStreetMap, OpenAIP, VFR Sectionals
From:       Slawek Mikula <slawek () bytebites ! com>
Date:       2017-09-29 16:32:56
Message-ID: 7f6e7353-8fe8-ecba-8759-9f55808f3c19 () bytebites ! com
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Thanks for implementing this !

May I share some remarks about this implementation (and map canvas gui 
in general):

- OSM tiles - tiles are bright. plane outline is also white. Hard to 
spot plane. Maybe changing plane outline to dark when osm is turned on. 
Or maybe there is some way to darken osm tiles by default in renderer ?

- Tiles transparency - it is not applied. maybe there is some method to 
apply transparency to png images.

- Option aircraft heading up - some issues with image rotation (OSM & 
AIP). Coordinates projection ?

- Other tile provider - is terrain maps by stamen applicable to FG (CC 
BY 3.0 <-> GPL) ? e.g. 
http://maps.stamen.com/terrain/#12/21.3650/-157.8464 or even 
http://maps.stamen.com/terrain-background/#12/21.3775/-157.8794. I think 
(looking at tile fetching code) I can implement it as another layer (but 
is it needed and do not clutter layer options ?)

Some UI:

- is it possible to make option section collapsible (Display options). 
Maybe small button near [out] button e.g. [CFG] and expand/collapse 
option panel. Most of the time this data are not needed in sight.

- FIX'es labels are (at least on my system /amd with compatibility gui 
layout/) very far from fixes position.


Frankly speaking right now if i have some time, i'm looking into 
nasal/xml in order to get more acquainted with FG internals. I offer 
some of my time to work on MapStructure extensions. Some simple tasks I 
think would be best to try to implement by me. Please advise what can I 
look into first.

regards,

-- 

Slawek


W dniu 28.09.2017 o  19:15, Stuart Buchanan pisze:
> Hi All,
>
> I've just added some new Nasal Canvas MapLayers to support Slippy
> Maps, as used by most web-based mapping services such as
> openstreetmap.
>
> This allows us to display sectional charts (for the US - vfrmap.com),
> and airspace information (courtesy of openaip.org), as well as a
> openstreetmap data.
>
> The canvas Map dialog has been updated to support these layers.
>
> Map data is retrieved over http and cached locally.
>
> -Stuart
>
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