private static double ClosestValue(TeeChart.Styles.Custom3D src, double x, double z)
{
double maxdist = 1.0e+300;
int closer = -1;
double tmpx, tmpz, dist;
for (int i = 0; i < src.Count; i++)
{
tmpx = src.XValues[i] - x;
tmpz = src.ZValues[i] - z;
dist = Math.Sqrt(tmpx * tmpx + tmpz * tmpz);
if (dist < maxdist)
{
maxdist = dist;
closer = i;
}
}
if (closer == -1)
{
return(0.0);
}
else
{
return(src.YValues[closer]);
}
}
public static void CreateGrid(TeeChart.Styles.Custom3D src, TeeChart.Styles.Custom3DGrid dst, int gridsize)
{
double tmpminx = src.XValues.Minimum;
double tmpminz = src.ZValues.Minimum;
double tmpxfact = src.XValues.Range / (double)gridsize;
double tmpzfact = src.ZValues.Range / (double)gridsize;
double tmpx, tmpz, tmpy;
int iindex;
dst.BeginUpdate();
try
{
dst.Clear();
dst.IrregularGrid = true;
dst.NumXValues = gridsize;
dst.NumZValues = gridsize;
// loop all grid cells
for (int x = 1; x <= dst.NumXValues; x++)
{
tmpx = tmpminx + (x - 1) * tmpxfact;
for (int z = 1; z <= dst.NumZValues; z++)
{
tmpz = tmpminz + (z - 1) * tmpzfact;
tmpy = ClosestValue(src, tmpx, tmpz);
iindex = dst[x, z];
if (iindex != -1)
{
dst.YValues.Value[iindex] = tmpy;
dst.XValues.Value[iindex] = tmpx;
dst.ZValues.Value[iindex] = tmpz;
}
else
{
dst[x, z] = dst.Add(tmpx, tmpy, tmpz);
}
}
}
}
finally
{
dst.EndUpdate();
}
}
