[Freeciv-Dev] (PR#7295) scenario for spherical earth

["Marcelo Burda" <mburda@xxxxxxxxx>]

<URL: http://rt.freeciv.org/Ticket/Display.html?id=7295 >

The first scenario(draf)was used to test this topology whit a hacked 
server v1.14. Many players like this.
The scenario is not perfect.But it is very nice sice this can played as 
a fltt
map. this is good for a iso-view in a not TF_ISO map.
The bigger problem is  Pierce-Quincuntial projection is a equal-angles 
projection. This make some continents too big. S. America and Africa. We 
can correct it. 
Oceans (pacific) can be smaller than real one.

We propose 2 concept map using reversed wrap more harded. this 2 maps 
are very
nice with the TF_ISO iso-view-optimized maps.
1)Concept Map For Scenario in quincutial topology "WorldVQuinc" 
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This is a Art-Map most than a Cartographic one. Continents need to be 
near right placed. 
Continent are 1:1 scaled but oceans can be littler . 

my choice for this concept map is  to place all continent far of 
singularities in vertical quincuntial topology.

The main axe is the long=30° Africa.

The vertical quincutial topology has a simplest Y wrap and reversed X 
wraps. This make big overview maps. The best ratio is 1:2 (x:y) but we 
can change it. The singularities to be avoided are in all corned and in 
middle of L and R edges.

                           
If atlantic is reduced we can go from NO to SA via the top edge.Best 
wiht a big Altlanitic, this is more real.

Red:Singularities
Yellow:Big sea we can reduce (this reduce the X:Y ratio)

S. America and antartica can be plased a litled right.

2)Concept Map For Scenario in quincutial topology "WorldSqQuinc_Polar"
=====================================================================
in this one i plase poles in singularities this make a more conical view 
of
Earth.
In this one North Pole is at N of Map and South pole at S of map!