public BasicVertexBuffer ConstructAsRoads(GraphicsDevice graphicsDevice, double widthInFeet, bool outerOnly)
{
double circumEarth = 24901 * 5280;
double width = widthInFeet / circumEarth * 2 * Math.PI;
double key = widthInFeet * (outerOnly ? -1 : 1);
if (!bufferCache.ContainsKey(key))
{
bufferCache[key] = lineGraph.ConstructAsRoads(graphicsDevice, width, null, Color.White, outerOnly);
}
return(bufferCache[key]);
}
