Changing class ColoredDotWriter

src/SparseTransform/Convert/ColoredDotWriter.cs

@@ -7,20 +7,38 @@ using DataStructures;
 
 namespace SparseTransform.Convert
 {
+
     internal class ColoredDotWriter : DotWriter
     {
         private bool textcolor;
+        private string[] dictColor = new string[65];
 
         public ColoredDotWriter(bool textColor)
         {
             this.textcolor = textColor;
+
+            for (int i = 0; i <= 3; i++)
+            {
+                for (int j = 0; j <= 3; j++)
+                {
+                    for (int k = 0; k <= 4; k++)
+                    {
+                        dictColor[i * 16 + j * 4 + k] = ("#" + (255 - i * 60).ToString("X2") + (255 - j * 60).ToString("X2") + (255 - k * 60).ToString("X2"));
+                    }
+                }
+            }
         }
-      
 
         public override String NodeLabel(GraphNode node, String präfix)
         {
-            return "\t" + präfix + node.Index + "  [shape=circle, style=filled, fillcolor=" + node.Color + "]";
+            if (textcolor || node.Color > 64)
+            {
+                return "\t" + präfix + node.Index + "  [shape=circle, style=filled, label=\"" + präfix + node.Index + "\\n Farbe " + node.Color + "\"]";
+            }
+            else
+            {
+                return "\t" + präfix + node.Index + "  [shape=circle, style=filled, fillcolor=\"" + dictColor[node.Color] + "\"]";
+            }
         }
-
     }
 }