public ClusterTestWorld(Camera camera)
{
Scene = new Scene(camera);
Vector[] vectors = new Vector[numVisuals];
Vector2[] bias = new Vector2[4];
bias[0] = 2.0f * new Vector2(Rand(1.0f), Rand(1.0f));
bias[1] = 2.0f * new Vector2(Rand(1.0f), Rand(1.0f));
bias[2] = 2.0f * new Vector2(Rand(1.0f), Rand(1.0f));
bias[3] = 2.0f * new Vector2(Rand(1.0f), Rand(1.0f));
for (int i = 0; i < numVisuals; i++)
{
int randIndex = (int)Rand(3.999999f);
Vector2 pos = new Vector2(Rand(1.0f), Rand(1.0f));// + bias[randIndex];
vectors[i] = new Vector(2);
vectors[i][0] = pos.X;
vectors[i][1] = pos.Y;
}
KMeans cluster = new KMeans(vectors, 3, 30);
int[] groups = cluster.FindGroups();
for (int i = 0; i < numVisuals; i++)
{
Color4 color;
if (groups[i] == 0)
{
color = Color4.Blue;
}
else if (groups[i] == 1)
{
color = Color4.Green;
}
else //if (groups[i] == 2)
{
color = Color4.Red;
}
//else //( groups[i] == 3 )
{
//m = VisualFactory.tranparentColorMat;
}
Visual visual = VisualFactory.CircleVisual(0.05f, color, VisualFactory.FillMaterial, 0.5f);
Visuals.Add(visual);
}
for (int i = 0; i < numVisuals; i++)
{
Visuals[i].Transform = new XForm(0, new Vector2(vectors[i][0], vectors[i][1]));
}
}
public void CycleGraph(int numNodes)
{
for (int i = 0; i < numNodes; i++)
{
Graph.AddNode(new Node <NodeData, Visual>(new NodeData(new Vector2(-2 + 4.0f * Rand(1), -2 + 4.0f * Rand(1)),
VisualFactory.CircleVisual(0.14f, Color4.Blue, VisualFactory.FillMaterial, 0.5f))));
Graph.Nodes[i].Data.Radius = 0.14f;
}
for (int i = 0; i < numNodes; i++)
{
Graph.AddPair(Graph.Nodes[i], Graph.Nodes[(i + 1) % numNodes]);
}
}
public void CompleteGraph(int numNodes)
{
for (int i = 0; i < numNodes; i++)
{
Graph.AddNode(new Node <NodeData, Visual>(new NodeData(new Vector2(-1 + 2.0f * Rand(1), -1 + 2.0f * Rand(1)),
VisualFactory.CircleVisual(0.14f, Color4.Black, VisualFactory.FillMaterial, 0.5f))));
Graph.Nodes[i].Data.Radius = 0.14f;
}
for (int i = 0; i < numNodes; i++)
{
for (int j = i + 1; j < numNodes; j++)
{
Graph.AddPair(Graph.Nodes[i], Graph.Nodes[j]);
}
}
}
