private List <TNetMesh> ConstructTNetMeshFromCellmap(List <VFace> cellmap)
{
List <Vertex> vertices = new List <Vertex>();
List <TNetMesh> result = new List <TNetMesh>();
TriangleNet.Configuration config = new TriangleNet.Configuration();
SweepLine sweepline = new SweepLine();
foreach (VFace face in cellmap)
{
vertices.Clear();
foreach (VHEdge he in face.EnumerateEdges())
{
Vertex v = new Vertex(he.Origin.X, he.Origin.Y);
v.Z = he.Origin.Z;
if (!vertices.Contains(v))
{
vertices.Add(v);
}
}
TNetMesh tMesh = (TNetMesh)sweepline.Triangulate(vertices, config);
result.Add(tMesh);
}
return(result);
}
public GameObject voronoiFaceToGO(TriangleNet.Topology.DCEL.Face face)
{
GameObject cell;
if (face.Bounded)
{
cell = new GameObject("FaceID: " + face.ID);
MeshFilter mFilter = cell.AddComponent <MeshFilter>();
MeshRenderer mRender = cell.AddComponent <MeshRenderer>();
mRender.material = new Material(Shader.Find("Diffuse"));
mRender.material.color = new Color(1f, 1f, 1f);
List <Vertex> vertices = new List <Vertex>();
foreach (TriangleNet.Topology.DCEL.HalfEdge he in face.EnumerateEdges())
{
Vertex v = new Vertex(he.Origin.X, he.Origin.Y);
vertices.Add(v);
}
SweepLine sl = new SweepLine();
TriangleNet.Configuration conf = new TriangleNet.Configuration();
TriangleNet.Mesh tMeshCell = (TriangleNet.Mesh)sl.Triangulate(vertices, conf);
mFilter.mesh = OsgiViz.Helperfunctions.convertTriangleNETMesh(tMeshCell);
}
else
{
cell = new GameObject("unbounded cell");
}
return(cell);
}
public BoundedVoronoi CreateRelaxedVoronoi(int lloydRelaxations, float cellScale, int seed)
{
System.Random random = new System.Random(seed);
List <Vertex> startingVertices = CreatePointsOnPlane(cellScale, cellScale, 50, 50, 1.0f, random);
List <Vertex> vertices = new List <Vertex>();
TriangleNet.Configuration config = new TriangleNet.Configuration();
SweepLine sweepline = new SweepLine();
TNetMesh tMesh = (TNetMesh)sweepline.Triangulate(startingVertices, config);
BoundedVoronoi voronoi = new BoundedVoronoi(tMesh);
for (int i = 0; i < lloydRelaxations; i++)
{
foreach (VFace face in voronoi.Faces)
{
if (CheckCell(face))
{
Vertex newCentroid = new Vertex(0, 0);
int vertexCount = 0;
foreach (VHEdge edge in face.EnumerateEdges())
{
newCentroid.X += edge.Origin.X;
newCentroid.Y += edge.Origin.Y;
vertexCount++;
}
newCentroid.X /= vertexCount;
newCentroid.Y /= vertexCount;
vertices.Add(newCentroid);
}
}
tMesh = (TNetMesh)sweepline.Triangulate(vertices, config);
voronoi = new BoundedVoronoi(tMesh);
vertices.Clear();
}
return(voronoi);
}
public void TestTriangulateSweepLine()
{
var t = new SweepLine();
var vertices = GetVertices();
var mesh = t.Triangulate(vertices, new Configuration());
Assert.AreEqual(6, vertices.Count);
Assert.AreEqual(6, mesh.Vertices.Count);
Assert.AreEqual(1, mesh.Vertices
.Where(v => v.Type == VertexType.UndeadVertex)
.Count());
}
public static BoundedVoronoi createRelaxedVoronoi(List <Vertex> startingVertices, int numLloydRelaxations)
{
TriangleNet.Configuration conf = new TriangleNet.Configuration();
SweepLine sl = new SweepLine();
List <Vertex> vertices = new List <Vertex>();
TnetMesh tMesh = (TnetMesh)sl.Triangulate(startingVertices, conf);
BoundedVoronoi voronoi = new BoundedVoronoi(tMesh);
for (int i = 0; i < numLloydRelaxations; i++)
{
foreach (VFace face in voronoi.Faces)
{
if (checkCell(face))
{
Vertex newCentroid = new Vertex(0, 0);
int vertexCount = 0;
foreach (VHEdge edge in face.EnumerateEdges())
{
newCentroid.X += edge.Origin.X;
newCentroid.Y += edge.Origin.Y;
vertexCount++;
}
newCentroid.X /= vertexCount;
newCentroid.Y /= vertexCount;
vertices.Add(newCentroid);
}
}
tMesh = (TnetMesh)sl.Triangulate(vertices, conf);
voronoi = new BoundedVoronoi(tMesh);
vertices.Clear();
}
return(voronoi);
}
// Use this for initialization
void Start()
{
TriangleNet.Configuration conf = new TriangleNet.Configuration();
List <Vertex> vertices = OsgiViz.Helperfunctions.createPointsOnPlane(1f, 1f, 50, 50, 1f, new System.Random());
SweepLine sl = new SweepLine();
//TriangleNet.Mesh tMesh = (TriangleNet.Mesh)TriangleNet.Meshing.GenericMesher.StructuredMesh(1f, 1f, 10, 10);
TriangleNet.Mesh tMesh = (TriangleNet.Mesh)sl.Triangulate(vertices, conf);
TriangleNet.Voronoi.BoundedVoronoi voronoi = new TriangleNet.Voronoi.BoundedVoronoi(tMesh);
foreach (TriangleNet.Topology.DCEL.Face vf in voronoi.Faces)
{
voronoiFaceToGO(vf);
}
}
