Show minor roads when zoomed out

[Samuel Walladge]

The default behaviour of Osmand (and likewise many other maps) is to hide more minor roads as the user zooms out. This is a nice feature most of the time, but is frustrating when viewing sparse areas of the map where the most useful roads are the minor roads.

For example, when driving through a national park in Australia. You need to zoom out to see a better perspective, but then have to zoom in a long way to make the roads visible to plan the trip ahead. It's difficult and frustrating to keep zooming in and out to keep both the perspective and where the roads are in your head.

What would be useful is an option to disable hiding minor roads. This could be off by default, but easily accessible to show all the roads when required. It may require some checks to make sure it won't attempt to render too many roads at once if the option is toggled over an area with dense roads.

What I'm interested to know is:

- does this option already exist and I just couldn't find it?

- if not, would the developers be interested in adding this?

Thanks.

[Peter B]

Make a loong tap on the zoom buttons (+/-) until a menu comes up. Then use a smaler percentage to increase the amoumt of information which is shown on the map. Just try it out.

Peter.

[Poutnik the Wanderer]

In my understanding, it is similar as in the LocusMap.

The "Map display scale", shown by the scale ruler,

is combination of map zoom level, determining via OSMAnd and the used theme
what will be shown,

and the map look relative percentage scale (mentioned long press of zoom
buttons),
that just resize the final picture of the drawn map,
mostly for viewing convenience of users.

So e.g L12 with 400% zoom
will have the same map scale
as L14 with with 100% zoom
and as L16 with 25% zoom.

But the first will have the least amount of drawn details
and the last will have the largest amount.

AFAIK, OSMAnd uses some hard limit of a minimal zoom when it is willing to
ever draw a particular map feature.
This may be related to encoded map zoom layers, some details may be absent
in low zooms.

Then there are soft limits of used vector map themes, that may pistpone the
detail drawing to higher zoom levels.

Perhaps one of ways us to look for a theme that draw details ASAP when the
app allows that.

The native themes of OpenAndroMaps( MapsForge .map format), used widely in
LocusMap and other applications, had 2 zoom aware variants Elevate and
Elements. The former is for rather "dense" areas, while the latter for
"sparse" areas like your case.


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Dne 10. října 2018 8:26:12 Peter B <pebo...@gmail.com> napsal:

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[Poutnik the Wanderer]

P.S., in my understanding
the Elements theme draws (near?) any detail present in the map zoom level code,
while the Elevate postpones it for higher zooms not to get display
overcrowded (and CPU busy) by to many details.

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Dne 10. října 2018 10:27:43 Poutnik the Wanderer <poutni...@gmail.com>
napsal:

[Samuel Walladge]

Awesome, the hidden zoom options and changing the map theme combined
work perfectly for what I was wanting!

I couldn't find the 'Elements' theme, but could find other map styles -
I found the offroad one showed a nice level of detail.

Is this documented anywhere (apart from this mail thread now)? If not,
I'd be happy to collate this info in some FAQ page. :)

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Regards,
Samuel Walladge

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[Poutnik the Wanderer]

Note the Elevate/Elements themes (under Elevate package) are not OSMAnd
themes, they were mentioned just as an approach illustration.

https://www.openandromaps.org/en/legend/elevate-mountain-hike-theme

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Dne 11. října 2018 8:16:30 "'Samuel Walladge' via Osmand"
<osm...@googlegroups.com> napsal:

> [...] I couldn't find the 'Elements' theme, but could find other map styles -
> I found the offroad one showed a nice level of detail. [...]