/// <summary>
/// Gets the surface with the specified description.
/// </summary>
public static Quadtree <F> Get(_SurfaceDesc <T, F> Surface)
{
Quadtree <F> surf;
if (Surface.Lower.Depth == 0)
{
surf = Quadtree <F> .Singleton(Surface.SurfaceizeFunc(Surface.Lower.Value, Surface.Higher.Value, Surface.Axis));
}
else
{
if (!_SurfaceCache.TryGetValue(Surface, out surf))
{
// RECURSE!
int axisind = (int)Surface.Axis;
Quadtree <F>[] children = new Quadtree <F> [4];
for (int t = 0; t < 4; t++)
{
_SurfaceDesc <T, F> subsurf = new _SurfaceDesc <T, F>()
{
Axis = Surface.Axis,
Lower = Surface.Lower[Octree.Indices[axisind, t, 1]],
Higher = Surface.Higher[Octree.Indices[axisind, t, 0]],
SurfaceizeFunc = Surface.SurfaceizeFunc
};
children[t] = Get(subsurf);
}
surf = _SurfaceCache[Surface] = Quadtree <F> .Create(Surface.Lower.Depth, children);
}
}
return(surf);
}
public int GetHashCode(_SurfaceDesc <T, F> obj)
{
return(obj.GetHashCode());
}
public bool Equals(_SurfaceDesc <T, F> x, _SurfaceDesc <T, F> y)
{
return(x.Axis == y.Axis && x.Higher == y.Higher && x.Lower == y.Lower && x.SurfaceizeFunc == y.SurfaceizeFunc);
}
