static void DrawImageTest(int n)
{
Random rand = new Random();
double[] X = new double[n], Y = new double[n], T = new double[n];
for (int i = 0; i < n; i++)
{
X[i] = rand.NextDouble() * 180;
Y[i] = rand.NextDouble() * 90;
T[i] = rand.Next(300);
}
IDWC idwc = new IDWC(X, Y, T);
idwc.CalculateD();
int width = 720, height = 360;
double lon, lat;
double t;
Bitmap bitmap;
Color[] colors = new Color[] { Color.FromArgb(0, 228, 0), Color.FromArgb(255, 255, 0), Color.FromArgb(255, 126, 0), Color.FromArgb(255, 0, 0), Color.FromArgb(153, 0, 76), Color.FromArgb(126, 0, 35) };
Stopwatch sw = new Stopwatch();
sw.Start();
for (int a = 0; a < 3; a++)
{
sw.Restart();
bitmap = new Bitmap(width, height);
for (int i = 0; i < width; i++)
{
lon = i * 0.25;
for (int j = 0; j < height; j++)
{
lat = j * 0.25;
t = Math.Round(idwc.Predict(lon, lat));
bitmap.SetPixel(i, j, colors[GetIndex(t)]);
//int v = (int)t;
//bitmap.SetPixel(i, j, Color.FromArgb(v / 256 / 256, v / 256 % 256, v % 256));
}
}
bitmap.Save(DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".png");
bitmap.Dispose();
sw.Stop();
System.Console.WriteLine(sw.Elapsed);
sw.Restart();
bitmap = new Bitmap(width, height);
for (int i = 0; i < width; i++)
{
lon = i * 0.25;
for (int j = 0; j < height; j++)
{
lat = j * 0.25;
t = Math.Round(idwc.PredictFixedSearchRadius(lon, lat));
bitmap.SetPixel(i, j, colors[GetIndex(t)]);
//int v = (int)t;
//bitmap.SetPixel(i, j, Color.FromArgb(v / 256 / 256, v / 256 % 256, v % 256));
}
}
bitmap.Save(DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".png");
bitmap.Dispose();
sw.Stop();
System.Console.WriteLine(sw.Elapsed);
}
System.Console.ReadLine();
}
/// <summary>
/// 直接调用VS委托调用（影响不大）
/// </summary>
static void DirectlyVSFunction()
{
Random rand = new Random();
int n = 500;
double[] X = new double[n], Y = new double[n], T = new double[n];
for (int i = 0; i < n; i++)
{
X[i] = rand.NextDouble() * 180;
Y[i] = rand.NextDouble() * 90;
T[i] = rand.Next(300);
}
IDWC idwc = new IDWC(X, Y, T);
double t;
Func <double, double, double> func = idwc.Predict;
Stopwatch sw = new Stopwatch();
sw.Start();
for (int i = 0; i < 720; i++)
{
double x = rand.NextDouble() * 180;
for (int j = 0; j < 360; j++)
{
double y = rand.NextDouble() * 90;
t = idwc.Predict(x, y);
}
}
sw.Stop();
System.Console.WriteLine(sw.Elapsed);
sw.Restart();
for (int i = 0; i < 720; i++)
{
double x = rand.NextDouble() * 180;
for (int j = 0; j < 360; j++)
{
double y = rand.NextDouble() * 90;
t = func(x, y);
}
}
sw.Stop();
System.Console.WriteLine(sw.Elapsed);
sw.Restart();
for (int i = 0; i < 720; i++)
{
double x = rand.NextDouble() * 180;
for (int j = 0; j < 360; j++)
{
double y = rand.NextDouble() * 90;
t = idwc.Predict(x, y);
}
}
sw.Stop();
System.Console.WriteLine(sw.Elapsed);
sw.Restart();
for (int i = 0; i < 720; i++)
{
double x = rand.NextDouble() * 180;
for (int j = 0; j < 360; j++)
{
double y = rand.NextDouble() * 90;
t = func(x, y);
}
}
sw.Stop();
System.Console.WriteLine(sw.Elapsed);
sw.Restart();
for (int i = 0; i < 720; i++)
{
double x = rand.NextDouble() * 180;
for (int j = 0; j < 360; j++)
{
double y = rand.NextDouble() * 90;
t = idwc.Predict(x, y);
}
}
sw.Stop();
System.Console.WriteLine(sw.Elapsed);
sw.Restart();
for (int i = 0; i < 720; i++)
{
double x = rand.NextDouble() * 180;
for (int j = 0; j < 360; j++)
{
double y = rand.NextDouble() * 90;
t = func(x, y);
}
}
sw.Stop();
System.Console.WriteLine(sw.Elapsed);
System.Console.ReadLine();
}
