class SphericalPosition {
   public float radius;       // distance from center
   public float azimuth;      // distance from 0 degrees around polar axis
   public float inclination;  // distance up from equator (x,z plane)
}

class PolarPos
{
   public float radius;         // distance from center
   public float AngleUpDown;    // rotation of x,z plane
   public float AngleLeftRight; // rotation round y axis
}

public class PlanetRegion
{
    public float North { get; set; }
    public float South { get; set; }
    public float West { get; set; }
    public float East { get; set; }
}

for(northwest + radius ; southeast + radius ; step)
  place vertex

for azimuth
  for inclination
    (x, y, z) = (Rsinθcosφ, Rsinθsinφ, Rcosθ)

for φ = -west; φ < east, φ+=pi/180;
for θ = -south; θ < north; θ += pi/180;
(x, y, z) = (Rsin(pi/2-θ)cosφ, Rsin(pi/2-θ)sinφ, Rcos(pi/2-θ))

+		result.vertices[0]	"(200.8, 400.6, -894.0)"	UnityEngine.Vector3
+		result.vertices[1]	"(-228.6, 385.4, -894.0)"	UnityEngine.Vector3
+		result.vertices[2]	"(-447.8, 15.9, -894.0)"	UnityEngine.Vector3
+		result.vertices[3]	"(-255.3, -368.2, -894.0)"	UnityEngine.Vector3
+		result.vertices[4]	"(171.9, -413.8, -894.0)"	UnityEngine.Vector3

for φ = -west; φ < east, φ+=pi/180;
for θ = -south; θ < north; θ += pi/180;
(x, y, z) = (Rsin(pi/2-θ)cosφ, Rsin(pi/2-θ)sinφ, Rcos(pi/2-θ))

var halfPi = Math.PI / 2;
var verts = new List<Vector3>();
int x = 0, y = 0;

for (double az = Region.West; az <= Region.East; az++)
{
    x++;
    y = 0;
    for (double inc = Region.North; inc <= Region.South; inc++)
    {
        verts.Add(new Vector3(
            (float)(PlanetSize * Math.Sin(halfPi - az) * Math.Cos(inc)),
            (float)(PlanetSize * Math.Sin(halfPi - az) * Math.Sin(inc)),
            (float)(PlanetSize * Math.Cos(halfPi - az)))
        );
        y++;
    }
}

var step = Math.PI / 180;

for (double az = Region.West; az <= Region.East; az += step)
    for (double inc = Region.North; inc <= Region.South; inc += step)

result.vertices[0]	"(200.8, 400.6, -894.0)"
result.vertices[1]	"(433.4, 113.7, -894.0)"
result.vertices[2]	"(371.6, -250.4, -894.0)"
result.vertices[3]	"(57.3, -444.4, -894.0)"
result.vertices[4]	"(-295.9, -336.5, -894.0)"

var west = Region.West * 0.0174532925;
var east = Region.East * 0.0174532925;
var north = Region.North * 0.0174532925;
var south = Region.South * 0.0174532925;