public static MVPRetCode query_mvptree(ref MVPFile m, ref DP query, int knearest,
float radius, float thresh, ref DP[] results, ref int count)
{
IntPtr[] points = new IntPtr[results.Length];
MVPRetCode ret = ph_query_mvptree(ref m, ref query, knearest, radius, thresh, points,
ref count);
int i = 0;
foreach (IntPtr ptr in points)
{
DP dp = (DP)Marshal.PtrToStructure(ptr, typeof(DP));
results[i++] = dp;
free(ptr);
}
return(ret);
}
public static MVPRetCode save_mvptree(ref MVPFile m, DP[] points)
{
IntPtr[] datapoints = new IntPtr[points.Length];
int size = Marshal.SizeOf(typeof(DP));
int i = 0;
foreach (DP dp in points)
{
IntPtr ptr = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(dp, ptr, false);
datapoints[i++] = ptr;
}
MVPRetCode ret = ph_save_mvptree(ref m, datapoints, datapoints.Length);
for (i = 0; i < datapoints.Length; ++i)
{
Marshal.FreeHGlobal(datapoints[i]);
}
return(ret);
}
