private bool ClosestPointTo(PlanktonXYZ point, ref float t)
{
bool rc = false;
PlanktonXYZ D = m_to - m_from;
float DoD = (D.X * D.X + D.Y * D.Y + D.Z * D.Z);
if (DoD > 0f)
{
if (point.DistanceTo(m_from) <= point.DistanceTo(m_to))
{
t = ((point - m_from) * D) / DoD;
}
else {
t = 1f + ((point - m_to) * D) / DoD;
}
rc = true;
}
return rc;
}
public float ClosestParameter(PlanktonXYZ point)
{
float t = 0;
PlanktonXYZ D = m_to - m_from;
float DoD = (D.X * D.X + D.Y * D.Y + D.Z * D.Z);
if (DoD > 0f)
{
if (point.DistanceTo(m_from) <= point.DistanceTo(m_to))
{
t = ((point - m_from) * D) / DoD;
}
else {
t = 1f + ((point - m_to) * D) / DoD;
}
}
else {
t = 0f;
}
return t;
}