c# port of the java version

.gitignore

@@ -5,3 +5,6 @@
 .classpath
 java/target
 benchmark/data/*.data
+bin
+obj
+.vscode

README.md

@@ -71,6 +71,28 @@ On MacOS, do the following (not yet made on other ).
 3. Run `pytest` (if you do not have it, install it through `pip install pytest`) to see that it works and that all tests pass.
 4. Does it work? Great! You are now ready to use the python function.
 
+# Getting started (C#)
+
+On Linux or MacOS, the following steps will get you going:
+
+```bash
+# Get the source code
+git clone https://github.com/hbf/miniball.git
+cd miniball/csharp
+
+# Compile an example, which generates random points and computes their miniball
+dotnet build
+
+# Run it on one million points in 3D
+./example/bin/Debug/net7.0/example 1000000 3
+```
+
+To run unit tests:
+
+```bash
+dotnet test
+```
+
 ## Float or double?
 
 The C++ code is written using [templates](http://en.wikipedia.org/wiki/C%2B%2B#Templates) and allows the number type to be specified as a template argument.
@@ -97,6 +119,7 @@ Many thanks go to the following people who have – sometimes substantially –
 
  * Thomas Otto (University of Hamburg) for [submitting several compiler fixes](https://github.com/hbf/miniball/issues/3) (g++ 4.7 and 4.5 on SUSE Linux 12.2 and 11.3) and for [introducing generic point and point coordinate accessors](https://github.com/hbf/miniball/pull/5) in the code.
 * [Adam Heins](https://github.com/adamheins) (University of Toronto) for [updating the Python bindings](https://github.com/hbf/miniball/pull/32) to be installable with `pip`.
+* [Lorenzo Delana](https://github.com/devel0) for [porting Java to C#](https://github.com/hbf/miniball/pull/34).
 
 # Links
   * For small dimensions like 2D or 3D, [Bernd Gärtner's code](http://www.inf.ethz.ch/personal/gaertner/miniball.html), which is based on Welzl's algorithm, may be faster.

csharp/example/Program.cs

@@ -0,0 +1,59 @@
+using System.Diagnostics;
+using SEB;
+
+using static SEB.PointSetUtils;
+
+namespace example;
+class Program
+{
+    static void Main(string[] args)
+    {
+        Console.WriteLine("====================================================");
+        Console.WriteLine("Seb example");
+
+        // Check for right number of arguments ...
+        if (args.Length < 2)
+        {
+            Console.WriteLine($"Usage {AppDomain.CurrentDomain.FriendlyName} number-of-points dimension [boundary]");
+            Console.WriteLine("If 'boundary' is given, all points will be on the boundary of a sphere.");
+            Console.WriteLine("====================================================");
+            Environment.Exit(1);
+        }
+        Console.WriteLine("====================================================");
+
+        // ... and parse command line arguments
+        var n = int.Parse(args[0]);
+        var d = int.Parse(args[1]);
+        var on_boundary = args.Length > 2 && args[2] == "boundary";
+
+        // Construct n random points in dimension d
+        var rnd = new Random();
+        var S = RandomPointSet(d, n, rnd, on_boundary);
+
+        var sw = new Stopwatch();
+
+        Console.WriteLine("Starting computation...");
+        Console.WriteLine("====================================================");
+
+        sw.Start();
+
+        var mb = new Miniball(S);
+
+        var rad = mb.Radius;
+        var rad_squared = mb.SquaredRadius;
+        var center = mb.Center;
+
+        sw.Stop();
+
+        // Output
+        Console.WriteLine($"Running time: {sw.Elapsed.TotalSeconds}s");
+        Console.WriteLine($"Radius = {rad} (squared: {rad_squared})");
+        Console.WriteLine("Center:");
+        for (int j = 0; j < center.Length; ++j)
+            Console.WriteLine($"  {center[j]}");
+
+        Console.WriteLine("====================================================");
+        Console.Write(mb.Verify().ConsoleFmt());
+        Console.WriteLine("====================================================");
+    }
+}

csharp/example/example.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\miniball\miniball.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

csharp/miniball/highdim/Logging.cs

@@ -0,0 +1,26 @@
+namespace SEB;
+
+/// <summary>
+/// A very simple logging class used for debugging.
+/// </summary>
+static class Logging
+{
+
+    public static bool log = false;
+
+    public static void Warn(string msg)
+    {
+        if (log) System.Console.WriteLine($"[warn] {msg}");
+    }
+
+    public static void Info(string msg)
+    {
+        if (log) System.Console.WriteLine($"[info] {msg}");
+    }
+
+    public static void Debug(string msg)
+    {
+        if (log) System.Console.WriteLine($"[debug] {msg}");
+    }
+
+}