private void AdjustPeriodic(Face face2, ICurve2D curveOnFace2, GeoPoint leaveFace1)
{
if (!face2.Surface.IsUPeriodic && !face2.Surface.IsVPeriodic)
{
return;
}
double uperiod = 0.0, vperiod = 0.0;
if (face2.Surface.IsUPeriodic)
{
uperiod = face2.Surface.UPeriod;
}
if (face2.Surface.IsVPeriodic)
{
vperiod = face2.Surface.VPeriod;
}
GeoPoint2D pos = face2.Surface.PositionOf(leaveFace1);
if (!face2.area.Contains(pos, true))
{ // dieser Punkt muss eigentlich in Area anthalten sein, er kann höchstens um die Periode verschoben sein
bool found = false;
CompoundShape tst = face2.area.Expand((uperiod + vperiod) / 100);
if (tst.Contains(pos, true))
{
found = true;
}
if (!found && uperiod > 0.0)
{
if (tst.Contains(pos + uperiod * GeoVector2D.XAxis, true))
{
pos = pos + uperiod * GeoVector2D.XAxis;
found = true;
}
if (!found && tst.Contains(pos - uperiod * GeoVector2D.XAxis, true))
{
pos = pos - uperiod * GeoVector2D.XAxis;
found = true;
}
}
if (!found && vperiod > 0.0)
{
if (tst.Contains(pos + vperiod * GeoVector2D.YAxis, true))
{
pos = pos + vperiod * GeoVector2D.YAxis;
found = true;
}
if (!found && tst.Contains(pos - vperiod * GeoVector2D.YAxis, true))
{
pos = pos - vperiod * GeoVector2D.YAxis;
found = true;
}
}
}
// jetzt die Kurve so verschieben, dass der Punkt draufliegt
double du = 0.0, dv = 0.0;
double dist = curveOnFace2.MinDistance(pos);
if (uperiod > 0.0)
{
double d = curveOnFace2.MinDistance(pos + uperiod * GeoVector2D.XAxis);
if (d < dist)
{
du = -uperiod;
dist = d;
}
d = curveOnFace2.MinDistance(pos - uperiod * GeoVector2D.XAxis);
if (d < dist)
{
du = uperiod;
dist = d;
}
}
if (vperiod > 0.0)
{
double d = curveOnFace2.Distance(pos + vperiod * GeoVector2D.YAxis);
if (d < dist)
{
dv = -vperiod;
dist = d;
}
d = curveOnFace2.Distance(pos - vperiod * GeoVector2D.YAxis);
if (d < dist)
{
dv = vperiod;
dist = d;
}
}
if (du != 0.0 || dv != 0.0)
{
curveOnFace2.Move(du, dv);
}
}