public static void Test(int tests)
{
var random = new Random(0);
var testxs = new uint[tests];
var testys = new uint[tests];
for (int i = 0; i < tests; i++)
{
testxs[i] = (uint)random.Next(Int32.MaxValue);
testys[i] = (uint)random.Next(Int32.MaxValue);
}
var results1 = new long[tests];
var results2 = new ulong[tests];
for (int i = 0; i < results1.Length; i++)
{
results1[i] = i;
}
for (uint i = 0; i < results2.Length; i++)
{
results2[i] = i;
}
var stopwatch = System.Diagnostics.Stopwatch.StartNew();
stopwatch.Restart();
for (int i = 0; i < tests; i++)
{
results1[i] = HilbertCurve.xy2d(32, (int)testxs[i], (int)testys[i]);
}
Console.WriteLine("Slow encode:\t{0:0.00}ns/record", stopwatch.ElapsedMilliseconds / (tests / 1000000.0));
stopwatch.Restart();
for (int i = 0; i < tests; i++)
{
int x = 0, y = 0;
HilbertCurve.d2xy(32, results1[i], out x, out y);
}
Console.WriteLine("Slow decode:\t{0:0.00}ns/record", stopwatch.ElapsedMilliseconds / (tests / 1000000.0));
stopwatch.Restart();
for (int i = 0; i < tests; i++)
{
results2[i] = HilbertCurve.xy2dByte(testxs[i], testys[i]);
}
Console.WriteLine("Fast encode:\t{0:0.00}ns/record", stopwatch.ElapsedMilliseconds / (tests / 1000000.0));
stopwatch.Restart();
for (int i = 0; i < tests; i++)
{
uint x = 0, y = 0;
HilbertCurve.d2xyByte((ulong)results2[i], out x, out y);
}
Console.WriteLine("Fast decode:\t{0:0.00}ns/record", stopwatch.ElapsedMilliseconds / (tests / 1000000.0));
for (int i = 0; i < tests; i++)
{
if (results1[i] != (long)results2[i])
{
Console.WriteLine("Error! ({0}, {1}) -> [ {2}, {3} ]", testxs[i], testys[i], results1[i], results2[i]);
}
uint x = 0;
uint y = 0;
HilbertCurve.d2xyByte((ulong)results1[i], out x, out y);
if (x != testxs[i] || y != testys[i])
{
Console.WriteLine("Error!!! {4} -> ({0}, {2}) != ({1}, {3})", x, testxs[i], y, testys[i], results1[i]);
Console.ReadLine();
}
}
}
