private static void AddCurveRule(params int[] npointValues)
{
HilbertCurve2D curve = new HilbertCurve2D(npointValues);
Direction2D name = curve.Name();
if (!_curves.ContainsKey(name))
{
_curves[name] = curve;
}
}
private static void SetChildren(Direction2D parent, params Direction2D[] children)
{
HilbertCurve2D curve = _curves[parent];
HilbertCurve2D[] childCurves = new HilbertCurve2D[children.Length];
for (int i = 0; i < children.Length; i++)
{
childCurves[i] = _curves[children[i]];
}
curve.Children = childCurves;
}
static HilbertSpaceFillingCurve2D()
{
AddCurveRule(0, 1, 3, 2);
AddCurveRule(0, 2, 3, 1);
AddCurveRule(3, 1, 0, 2);
AddCurveRule(3, 2, 0, 1);
SetChildren(UP, RIGHT, UP, UP, LEFT);
SetChildren(RIGHT, UP, RIGHT, RIGHT, DOWN);
SetChildren(DOWN, LEFT, DOWN, DOWN, RIGHT);
SetChildren(LEFT, DOWN, LEFT, LEFT, UP);
_curveUp = _curves[UP];
}
