private static void EadesFRRuntimeVsVertices()
{
int max_iterations = 150;
float spring_multiplier = 1.0f; float spring_neutral_distance = 1.0f; float repellant_multiplier = 1.0f; float dampening = 1.0f; float C = 1f;
var outputStream = new System.IO.StreamWriter(new System.IO.FileInfo("RuntimeVsVertices.csv").OpenWrite());
outputStream.WriteLine(PrintCSV(new String[] { "Vertices", "Runtime" }));
foreach (var filename in TestFilePaths())
{
// Multiple runs
for (var i = 0; i < RunsPerTest; i++)
{
Console.Write("RuntimeVsVertices: {0}({1}) Vertices: \r", filename, i);
var fruchmanReingold = new FruchtermanReingoldAlgorithm(spring_multiplier, C, repellant_multiplier, max_iterations, 0f, false);
var eades = new EadesAlgorithm(spring_multiplier, spring_neutral_distance, repellant_multiplier, dampening, max_iterations, 0f, false);
Graph g = loadGraph(filename);
var f_results = runner(loadGraph(filename), null, fruchmanReingold);
var e_results = runner(loadGraph(filename), null, eades);
if (f_results.iterations != e_results.iterations)
{
throw new Exception("should never happen");
}
outputStream.WriteLine(PrintCSV(new String[] { "" + f_results.graph.nodes.Count, "" + f_results.runtime, "" + e_results.runtime }));
outputStream.Flush();
Console.Write("RuntimeVsVertices: {0}({1}) Vertices: {2}, Time: {3}ms/{4}ms\n", filename, i, f_results.graph.nodes.Count, f_results.runtime, e_results.runtime);
}
}
outputStream.Close();
}
private static void EadesVsFruchtmanReingold(float spring_multiplier = 1.0f, float spring_neutral_distance = 1.0f, float C = 1f, float repellant_multiplier = 1.0f, float dampening = 1.0f)
{
float stabilizationThreshold = 0.1f;
var fruchmanReingold = new FruchtermanReingoldAlgorithm(spring_multiplier, C, repellant_multiplier, int.MaxValue, stabilizationThreshold, true);
var eades = new EadesAlgorithm(spring_multiplier, spring_neutral_distance, repellant_multiplier, dampening, int.MaxValue, stabilizationThreshold, true);
var outputStream = new System.IO.StreamWriter(new System.IO.FileInfo("Algorithms.csv").OpenWrite());
outputStream.WriteLine(PrintCSV(new String[] { "Eades", "FruchtermanAndReingold" }));
IInputLoader l = new TestInput();
foreach (var filename in TestFilePaths())
{
for (var i = 0; i < RunsPerTest; i++)
{
Graph g = l.load(filename);
var resultsEades = runner(l.load(filename), null, eades);
var resultsFR = runner(l.load(filename), null, fruchmanReingold);
outputStream.WriteLine(PrintCSV(new String[] { "" + resultsEades.iterations, "" + resultsFR.iterations }));
outputStream.Flush();
Console.Write("EadesVsFruchtmanReingold: {0}({1})\r", filename, i);
}
}
outputStream.Close();
}
private static void EadesFRRuntimeVsIterations(int MAX_ITERATIONS = 40000)
{
float spring_multiplier = 1.0f; float spring_neutral_distance = 1.0f; float repellant_multiplier = 1.0f; float dampening = 1.0f; float C = 1f;
foreach (var filename in TestFilePaths())
{
var outputStream = new System.IO.StreamWriter(new System.IO.FileInfo("EadesVsFRRuntime" + new System.IO.FileInfo(filename).Name + ".csv").OpenWrite());
outputStream.WriteLine(PrintCSV(new String[] { "Iterations", "Runtime" }));
var deltaI = 500;
for (int iteration = deltaI; iteration < MAX_ITERATIONS; iteration += deltaI)
{
//Multiple runs
for (var i = 0; i < RunsPerTest; i++)
{
var fruchmanReingold = new FruchtermanReingoldAlgorithm(spring_multiplier, C, repellant_multiplier, iteration, 0f, false);
var eades = new EadesAlgorithm(spring_multiplier, spring_neutral_distance, repellant_multiplier, dampening, iteration, 0f, false);
Graph g = loadGraph(filename);
var f_results = runner(loadGraph(filename), null, fruchmanReingold);
var e_results = runner(loadGraph(filename), null, eades);
if (f_results.iterations != e_results.iterations)
{
throw new Exception("should never happen");
}
outputStream.WriteLine(PrintCSV(new String[] { "" + f_results.iterations, "" + f_results.runtime, "" + e_results.runtime }));
outputStream.Flush();
Console.Write("RuntimeVsIterations: {0}({1}) Iterations: {2}\r", filename, i, f_results.iterations);
}
}
outputStream.Close();
}
}
/// <summary>
/// This function has been kept for compatibility. Use private static results runner(string inputFile, string outputFile, Algorithm a) in the future.
/// </summary>
private static results runner(string inputFile, string outputFile, float spring_multiplier, float spring_neutral_distance, float repellant_multiplier, float dampening, int max_iterations, bool stabilise)
{
Graph g = loadGraph(inputFile);
float stabilizationThreshold = 0.001f;
Algorithm a = new FruchtermanReingoldAlgorithm(spring_multiplier, spring_neutral_distance, repellant_multiplier, max_iterations, stabilizationThreshold, stabilise);
return(runner(g, outputFile, a));
}