public void AddFace(Face face)
{
if (Faces.Contains(face))
{
throw new InvalidOperationException("Edge allready contains face!");
}
Faces.Add(face);
}
public HashSet <PolygonalFace> GetAdjacentFaces()
{
var adjacentFaces = new HashSet <PolygonalFace>(); //use a hash to avoid duplicates
foreach (var edge in OuterEdges)
{
if (Faces.Contains(edge.OwnedFace))
{
adjacentFaces.Add(edge.OtherFace);
}
else
{
adjacentFaces.Add(edge.OwnedFace);
}
}
return(adjacentFaces);
}
/// <summary>
/// Determines whether [is new member of] [the specified face].
/// </summary>
/// <param name="face">The face.</param>
/// <returns><c>true</c> if [is new member of] [the specified face]; otherwise, <c>false</c>.</returns>
public override bool IsNewMemberOf(PolygonalFace face)
{
if (Tolerance.IsPracticallySame(0.0))
{
Tolerance = Constants.ErrorForFaceInSurface;
}
if (Faces.Contains(face))
{
return(false);
}
if (!face.Normal.Dot(Normal).IsPracticallySame(1.0, Tolerance))
{
return(false);
}
//Return true if all the vertices are within the tolerance
//Note that the Dot term and distance to origin, must have the same sign,
//so there is no additional need moth absolute value methods.
return(face.Vertices.All(v => Normal.Dot(v.Coordinates).IsPracticallySame(DistanceToOrigin, Tolerance)));
}
/// <summary>
/// Determines whether [is new member of] [the specified face].
/// </summary>
/// <param name="face">The face.</param>
/// <returns><c>true</c> if [is new member of] [the specified face]; otherwise, <c>false</c>.</returns>
public override bool IsNewMemberOf(PolygonalFace face)
{
if (Faces.Contains(face))
{
return(false);
}
if (Math.Abs(face.Normal.dotProduct(Axis, 3)) > Constants.ErrorForFaceInSurface)
{
return(false);
}
foreach (var v in face.Vertices)
{
if (Math.Abs(MiscFunctions.DistancePointToLine(v.Position, Anchor, Axis) - Radius) >
Constants.ErrorForFaceInSurface * Radius)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Checks if the face is a member of the sphere
/// </summary>
/// <param name="face">The face.</param>
/// <returns>Boolean.</returns>
public override bool IsNewMemberOf(PolygonalFace face)
{
if (Faces.Contains(face))
{
return(false);
}
if (Math.Abs(face.Normal.dotProduct(face.Center.subtract(Center, 3)) - 1) >
Constants.ErrorForFaceInSurface)
{
return(false);
}
foreach (var v in face.Vertices)
{
if (Math.Abs(MiscFunctions.DistancePointToPoint(v.Position, Center) - Radius) >
Constants.ErrorForFaceInSurface * Radius)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Checks if the face is a member of the sphere
/// </summary>
/// <param name="face">The face.</param>
/// <returns>Boolean.</returns>
public override bool IsNewMemberOf(PolygonalFace face)
{
if (Faces.Contains(face))
{
return(false);
}
if (Math.Abs(face.Normal.Dot(face.Center - Center) - 1) >
Constants.ErrorForFaceInSurface)
{
return(false);
}
foreach (var v in face.Vertices)
{
if (Math.Abs(v.Coordinates.Distance(Center) - Radius) >
Constants.ErrorForFaceInSurface * Radius)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Determines whether two faces are adjacent.
/// </summary>
/// <param name="face">The other face to test.</param>
/// <returns><c>true</c> if <paramref name="face" /> and this are adjacent; otherwise, <c>false</c>.</returns>
public Boolean IsAdjacent(IFace face)
{
return(Faces.Contains(face));
}
