/// <summary>
/// Computes the barycentric dual area around a given mesh vertex.
/// </summary>
/// <returns>The dual area.</returns>
/// <param name="vertex">Vertex.</param>
public static double BarycentricDualArea(HE_Vertex vertex)
{
double area = 0.0;
foreach (HE_Face f in vertex.adjacentFaces())
{
area += Area(f);
}
return(area);
}
/// <summary>
/// Computes the equally weighted normal arround the specified vertex
/// </summary>
/// <returns>The normal vector at that vertex.</returns>
/// <param name="vertex">Vertex.</param>
public static Vector3d VertexNormalEquallyWeighted(HE_Vertex vertex)
{
Vector3d n = new Vector3d();
foreach (HE_Face f in vertex.adjacentFaces())
{
n += FaceNormal(f);
}
return(n.Unit());
}
/// <summary>
/// Computes the area weighted normal arround the specified vertex
/// </summary>
/// <returns>The normal vector at that vertex.</returns>
/// <param name="vertex">Vertex.</param>
public static Vector3d VertexNormalAreaWeighted(HE_Vertex vertex)
{
Vector3d n = new Vector3d();
foreach (HE_Face f in vertex.adjacentFaces())
{
Vector3d normal = FaceNormal(f);
double area = Area(f);
n += (normal * area);
}
return(n.Unit());
}
