public static void XAxisWeightMinDistance2()
{
XAxisWeightMinDistanceData test = new XAxisWeightMinDistanceData();
double total = 0;
foreach (var iter in test.m_posList)
{
total += iter;
}
// f(x) = Abs(x - x1) * weight1 + ...Abs(x - xN) * weightN - ( total / 2)
double t1 = 20d, t2 = 0;
do
{
double sum = test.GetDistance(t1);
t2 = t1 - (sum - total / 2) / test.GetDistanceDerivative(t1);
if (Math.Abs(t1 - t2) < 0.001d)
{
break;
}
t1 = t2;
} while (true);
double minSum = test.GetDistance(t2);
Debug.Log("XAxisWeightMinDistance2 " + minSum + " minPos " + t2);
}
public static void XAxisWeightMinDistance3()
{
XAxisWeightMinDistanceData test = new XAxisWeightMinDistanceData();
double minX = test.GetMinWeightDistanceX();
double minSum = test.GetDistance(minX);
Debug.Log("XAxisWeightMinDistance3 " + minSum + " minX " + minX);
}
public static void XAxisWeightMinDistance()
{
XAxisWeightMinDistanceData test = new XAxisWeightMinDistanceData();
double total = 0;
foreach (var iter in test.m_posList)
{
total += iter;
}
double minDistance = double.MaxValue;
double minPos = double.MaxValue;
double step = 0.1d;
for (int i = 0; i < 1000; ++i)
{
double curPos = step * i;
double sum = 0;
foreach (var iter in test.m_posList)
{
//double weight = iter.Item2;
sum += Math.Abs(curPos - iter);
}
if (sum < minDistance)
{
minDistance = sum;
minPos = curPos;
}
}
Debug.Log("total " + total + " XAxisWeightMinDistance " + minDistance + " minPos " + minPos);
List <FunctionDraw> drawList = new List <FunctionDraw>();
drawList.Add(new FunctionDraw(test.GetDistance, 0.001d));
Bitmap bitmap = DrawFunctionHelper.DrawFunction(drawList,
test.m_posList[0] - 10, test.m_posList[test.m_posList.Count - 1], -10, +100, "XAxisWeightMinDistance");
string fileName = "XAxisWeightMinDistance" + Debug.GetTime() + ".bmp";
bitmap.Save(fileName);
}