/// <summary>
/// Constructor taking in List of List of vertices. The first list will be the outer boundary and the rest are the inner boundaries
/// </summary>
/// <param name="vertxIndices">List of List of vertices. The first list will be the outer boundary and the rest are the inner boundaries</param>
public IndexFace(IList <IList <int> > vertxIndices, ref IDictionary <int, XYZ> meshVertices)
{
int vertexCount = vertxIndices?.Count ?? 0;
if (vertexCount == 0)
{
return;
}
IndexOuterBoundary = vertxIndices[0];
SetupEdges(IndexOuterBoundary, 0);
if (vertexCount > 1)
{
vertxIndices.RemoveAt(0);
IndexedInnerBoundaries = vertxIndices;
foreach (IList <int> innerBound in IndexedInnerBoundaries)
{
int idxOffset = OuterAndInnerBoundaries.Count;
SetupEdges(innerBound, idxOffset);
}
}
// Create normal from only the outer boundary
IList <XYZ> vertices = new List <XYZ>();
foreach (int idx in IndexOuterBoundary)
{
vertices.Add(meshVertices[idx]);
}
Normal = TriangleMergeUtil.NormalByNewellMethod(vertices);
}
/// <summary>
/// Constructor taking a list of vertex indices (face without hole)
/// </summary>
/// <param name="vertxIndices">the list of vertex indices (face without hole)</param>
public IndexFace(IList <int> vertxIndices, ref IDictionary <int, XYZ> meshVertices)
{
IndexOuterBoundary = vertxIndices;
SetupEdges(IndexOuterBoundary, 0);
IList <XYZ> vertices = new List <XYZ>();
foreach (int idx in IndexOuterBoundary)
{
vertices.Add(meshVertices[idx]);
}
Normal = TriangleMergeUtil.NormalByNewellMethod(vertices);
}
