graphwriter: split long cycles into smaller parts

GraphDrawer/Program.cs

@@ -9,11 +9,29 @@ using System.Windows.Forms.DataVisualization.Charting;
 
 namespace GraphDrawer
 {
-	internal class Program
-	{
-		private static void Main(string[] args)
-		{
-			GraphWriter.Write(args[0], args[1]);
-		}
-	}
+    internal class Program
+    {
+        private const string HELP = @"
+Tool for plotting graphs comparing Vecto 2.2 and Vecto 3
+
+--split <leng> ... split input into parts of length <len> (in m), only distance output
+
+";
+
+        private static void Main(string[] args)
+        {
+            if (args.Contains("--split")) {
+                var idx = Array.FindIndex(args, x => x == "--split");
+                var lenght = int.Parse(args[idx + 1]);
+                var success = true;
+                var start = 0;
+                do {
+                    success = GraphWriter.WriteDistanceSlice(args[0], args[1], start, start + lenght);
+                    start += lenght;
+                } while (success);
+                GraphWriter.Write(args[0], args[1]);
+            }
+            GraphWriter.Write(args[0], args[1]);
+        }
+    }
 }
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