protected void OnSelectedGraphIndexChanged()
{
Text = $"{selectedGraphIndex + 1}/{Graphs.Length}";
GraphPath graphPath = Graphs[selectedGraphIndex];
Graph graph = graphPath.Graph;
graphPainter = new GraphPainter(graphPath);
graphPainter.Scale = Math.Min(ClientSize.Width, ClientSize.Height);
dijkstraPathPainter = new GraphPathPainter(graphPainter, graphPath.Path, dijkstraPathPen);
var input = new NetworkSampleInput(graphPath.Graph, 0);
bool[] visitStatus = new bool[graph.Vertices.Length];
visitStatus[0] = true;
int currentVertex = 0;
List <int> path = new List <int>();
path.Add(currentVertex);
do
{
visitStatus[currentVertex] = true;
input.SetCurrentVertex(currentVertex);
double[] prediction = Network.Evaluate(input.Values);
currentVertex = prediction.IndexOfMax(0);
path.Add(currentVertex);
}while (visitStatus[currentVertex] == false && currentVertex != graph.Vertices.Length - 1);
networkPathPainter = new GraphPathPainter(graphPainter, path.ToArray(), networkPathPen);
Refresh();
}
public static NetworkSample Create(GraphPath graphPath, int currentVertex, int label)
{
NetworkSampleInput input = new NetworkSampleInput(graphPath.Graph, currentVertex);
double[] output = new double[graphPath.Graph.Vertices.Length];
output[label] = 1;
return(new NetworkSample(graphPath, currentVertex, input.Values, output));
}
public GraphPainter(GraphPath graphPath)
{
GraphPath = graphPath;
Graph graph = graphPath.Graph;
Vertices = new PointF[graph.Vertices.Length];
VerticesBrushes = new Brush[graph.Vertices.Length];
Scale = 1;
for (int i = 0; i < Vertices.Length; i++)
{
VerticesBrushes[i] = Brushes.DarkGray;
}
VerticesBrushes[0] = Brushes.Magenta;
VerticesBrushes[Vertices.Length - 1] = Brushes.LightSeaGreen;
}
protected NetworkSample(GraphPath graphPath, int currentVertex, double[] input, double[] output) : base(input, output)
{
GraphPath = graphPath;
CurrentVertex = currentVertex;
}
