public void Clear()
{
Faces.Clear();
Points.Clear();
Edges.Clear();
CachedPoints.Clear();
CachedEdgePoints.Clear();
m_CurrId = 0;
}
public List <ISnapPoint> FindOrCachePoints(SceneObject so)
{
if (enable_snap_points == false)
{
return(null);
}
if (PointsCache.ContainsKey(so))
{
CachedPoints c = PointsCache[so];
if (c.timestamp == so.Timestamp)
{
return(c.points);
}
// un-cache
if (c.points != null)
{
foreach (ISnapPoint pt in c.points)
{
pt.Destroy();
}
}
PointsCache.Remove(so);
}
List <ISnapPoint> vPoints = null;
if (so is PivotSO)
{
vPoints = new List <ISnapPoint>()
{
new PivotSOSnapPoint(so as PivotSO)
};
}
else if (so is GroupSO)
{
foreach (SceneObject childso in (so as GroupSO).GetChildren())
{
List <ISnapPoint> pts = FindOrCachePoints(childso);
if (vPoints == null)
{
vPoints = pts;
}
else
{
vPoints.AddRange(pts);
}
}
}
else
{
foreach (ISnapGenerator gen in Generators)
{
if (gen.CanGenerate(so))
{
List <ISnapPoint> v = gen.GeneratePoints(so);
if (v != null && v.Count > 0)
{
if (vPoints == null)
{
vPoints = v;
}
else
{
vPoints.AddRange(v);
}
}
}
}
}
PointsCache[so] = new CachedPoints()
{
points = vPoints, timestamp = so.Timestamp
};
return(vPoints);
}
