public EquidistantProjection(double lat, double lon)
 {
     _center.Lat = Globe.DegreesToRadians(lat);
     _center.Lon = Globe.DegreesToRadians(lon);
     _offset.X   = 0;
     _offset.Y   = 0;
     _projection = new AzimuthalEquidistant(lat, lon);
 }
 internal void ReSetCenter(WorldPoint world, SimulationPoint sim)
 {
     _center.Lat = Globe.DegreesToRadians(world.Lat);
     _center.Lon = Globe.DegreesToRadians(world.Lon);
     _offset.X   = sim.X;
     _offset.Y   = sim.Y;
     _projection = new AzimuthalEquidistant(_center.Lat, _center.Lon);
 }