On 11/10/18 8:52 AM, دار الآثار للنشر والتوزيع-صنعاء Dar Alathar-Yemen
wrote:
For OpenStreetMap rendrer:
*https://www.openstreetmap.org/search?whereami=1&query=-1.406%2C0.220#map=3/-18.56/24.43*
*Somalia, Madagasikara,Yemen **اليمن, Oman **عمانwill be best if they
have a rotate angle*
*India does not appear, Kynia has a chance to appear if Somalia has
rotate angle also Ghana have chance to appear if down vertically*
**
*In MAPS.ME android*
*Seas: Red sea, Persian Gulf and many other seas will be view better
with rotate angle*
**
*In All map renderers name of Sweden and Norway can be in middle if it
have a rotate angle*
**
We all agree that rotated labels - or even better, curved labels - would
improve the rendering.Most of us are arguing that having mappers tag
place=* nodes with an angle is the wrong way to achieve this.
The renderer that I use for my personal experiments doesn't even use
place=* nodes if there is a corresponding administrative boundary,
because it has more flexibility in label placement if it ignores them.
I do intend at some point to experiment with implementing a Mapnik
symbolizer that can do curved labels on area features - they'd be ideal
for island chains (Japan, Hawai`i), chains of lakes, and mountain
ranges, as well as for elongated countries like Chile or Norway, or
elongated waterbodies such as the Adriatic Sea, the Gulf of Bothnia or
Lake Nyasa.
If mappers were to specify rotation on place nodes, it would only get in
the way of doing it right - for instance, the renderer would no longer
be free to choose a different layout to avoid collisions.
It's awkward, too, for alternative renderers, such as navigation
displays, that are not always north-at-the-top. I've done one (very
simple) rendering at one point for a talk about a fire tower - it showed
the plotting board of an Osborne alidade, with labels oriented to face
the observer - labels at the near edge of the map would be upside down!
A simple rotation of labels would not have been easy to compute, since
the device also does not use anything resembling spherical Mercator, but
rather a general perspective projection.
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