move csharp example to examples folder

examples/LivePlotter.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Numerics;
+using System.Runtime.InteropServices;
+using Common.Data;
+using pointid = System.UInt64;
+
+namespace TysonPalletScanner
+{
+    public class LivePlotter
+    {
+        [DllImport("LivePlotter.dll")]
+        public static extern bool start(int win_w, int win_h);
+
+        [DllImport("LivePlotter.dll")]
+        public static extern bool stop();
+
+        [DllImport("LivePlotter.dll")]
+        public static extern pointid create_point(float x, float y, float z);
+
+        [DllImport("LivePlotter.dll")]
+        public static extern void set_color(pointid id, float r, float g, float b);
+
+        [DllImport("LivePlotter.dll")]
+        public static extern void set_scale(pointid id, float scale);
+
+        [DllImport("LivePlotter.dll")]
+        public static extern void update_point(pointid id, float x, float y, float z);
+
+        [DllImport("LivePlotter.dll")]
+        public static extern void set_lifetime(pointid id, float new_lifetime_s);
+
+        [DllImport("LivePlotter.dll")]
+        public static extern void clear_point(pointid id);
+
+        public static void PlotCameraPoses()
+        {
+            string[] lines = File.ReadAllLines("poses.csv");
+            for (int camera_i = 1; camera_i < lines.Length; camera_i++)
+            {
+                string[] words = lines[camera_i].Split(',');
+                float x = float.Parse(words[0]);
+                float y = float.Parse(words[1]);
+                float z = float.Parse(words[2]);
+                float w = float.Parse(words[3]);
+                float i = float.Parse(words[4]);
+                float j = float.Parse(words[5]);
+                float k = float.Parse(words[6]);
+
+                Pose pose = new(new Quaternion(i, j, k, w), new Vector3(x, y, z));
+                for (int m = 0; m < 3; m++)
+                {
+                    for (int n = 0; n < 25; n++)
+                    {
+                        Vector3 local = new(0);
+                        local[m] = n * 10.0f;
+                        Vector3 global = pose * local;
+                        pointid id = create_point(global.X, global.Y, global.Z);
+
+                        Vector3 color = new(0);
+                        color[m] = 1.0f;
+                        set_color(id, color.X, color.Y, color.Z);
+                        set_scale(id, 15);
+                    }
+                }
+            }
+        }
+    }
+}