public IEnumerator <Facet> GetEnumerator()
{
foreach (var body in BodyArray)
{
MeshPtOffsetArray recentFace = null;
foreach (var facet in body.Faces.SelectMany(f => new MeshPtOffsetArray(f.Mesh, PtOffsetArray).ToFacets()))
{
IsNewFace = facet.Meshed != recentFace;
recentFace = facet.Meshed;
yield return(facet);
}
}
}
/// <summary>
/// Creates an enumerable of facets having only a single instance of a single facet sliding over
/// the mesh vertices. It means, that you cannot rely on object identity (always the same facet with different index).
/// </summary>
/// <param name="mesh">The mesh</param>
/// <returns>An enumerable facet</returns>
public static IEnumerable <Facet> TransientFacetsOf(MeshPtOffsetArray mesh)
{
var maxIndex = mesh.Mesh.FacetCount();
if (maxIndex > 0)
{
Facet f = new Facet(mesh, 0);
yield return(f);
for (int i = 0; i < maxIndex; i++)
{
f.Index = i;
yield return(f);
}
}
}
/// <summary>
/// Creates an enumerable of facets referring to a single mesh and point array.
/// </summary>
/// <param name="mesh"></param>
/// <param name="offsetArray"></param>
/// <returns></returns>
public static IEnumerable <Facet> ToFacets(this Mesh mesh, PtOffsetArray offsetArray)
{
var offsetMesh = new MeshPtOffsetArray(mesh, offsetArray);
return(Enumerable.Range(0, mesh.FacetCount()).Select(index => new Facet(offsetMesh, index)));
}
public Facet(MeshPtOffsetArray mesh, int index)
{
Meshed = mesh;
Index = index;
}
