From d0a134dbf66e8b0248317ebffda476a8dd945478 Mon Sep 17 00:00:00 2001
From: Vort <vvort@yandex.ru>
Date: Sat, 7 Jan 2017 13:03:42 +0200
Subject: [PATCH] Move color difference function to Color.cs

---
 Color.cs                   | 19 ++++++++++++++++++-
 Config.cs                  |  4 ++--
 Properties/AssemblyInfo.cs |  4 ++--
 Tracer.cs                  | 17 +++--------------
 4 files changed, 25 insertions(+), 19 deletions(-)

diff --git a/Color.cs b/Color.cs
index 57070b6..b058113 100644
--- a/Color.cs
+++ b/Color.cs
@@ -1,7 +1,17 @@
-namespace RiverTrace
+using ColorMine.ColorSpaces;
+using ColorMine.ColorSpaces.Comparisons;
+
+namespace RiverTrace
 {
     struct Color
     {
+        private static Cie1976Comparison cie;
+
+        static Color()
+        {
+            cie = new Cie1976Comparison();
+        }
+
         public Color(byte r, byte g, byte b)
         {
             R = r;
@@ -9,6 +19,13 @@ public Color(byte r, byte g, byte b)
             B = b;
         }
 
+        public double DifferenceTo(Color c)
+        {
+            Rgb rgb1 = new Rgb { R = R, G = G, B = B };
+            Rgb rgb2 = new Rgb { R = c.R, G = c.G, B = c.B };
+            return rgb1.Compare(rgb2, cie);
+        }
+
         public byte R;
         public byte G;
         public byte B;
diff --git a/Config.cs b/Config.cs
index 59f40c9..8d11b2e 100644
--- a/Config.cs
+++ b/Config.cs
@@ -49,11 +49,11 @@ static Config()
                 lon1 = 52.2209239,
                 lat2 = 64.9032122,
                 lon2 = 52.2213061,
-                iterationCount = 800,
+                iterationCount = 500,
                 sampleWidthScale = 1.7,
                 sampleLengthScale = 0.6,
                 shoreContrast = 10.0,
-                maxDifference = 12.0,
+                maxDifference = 14.0,
                 debug = false
             };
             if (File.Exists(fileName))
diff --git a/Properties/AssemblyInfo.cs b/Properties/AssemblyInfo.cs
index fcc1396..2dc6e70 100644
--- a/Properties/AssemblyInfo.cs
+++ b/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.0.2.0")]
-[assembly: AssemblyFileVersion("0.0.2.0")]
+[assembly: AssemblyVersion("0.0.3.0")]
+[assembly: AssemblyFileVersion("0.0.3.0")]
diff --git a/Tracer.cs b/Tracer.cs
index 58fd1ef..a76aa11 100644
--- a/Tracer.cs
+++ b/Tracer.cs
@@ -1,6 +1,4 @@
-using ColorMine.ColorSpaces;
-using ColorMine.ColorSpaces.Comparisons;
-using System;
+using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Threading.Tasks;
@@ -9,7 +7,6 @@ namespace RiverTrace
 {
     class Tracer
     {
-        private Cie1976Comparison cie;
         private int sampleWidth;
         private int sampleLength;
         private double riverWidthM;
@@ -47,13 +44,6 @@ void WriteOsm(List<Vector> result)
             Console.WriteLine("</osm>");
         }
 
-        double GetColorDifference(Color c1, Color c2)
-        {
-            Rgb rgb1 = new Rgb { R = c1.R, G = c1.G, B = c1.B };
-            Rgb rgb2 = new Rgb { R = c2.R, G = c2.G, B = c2.B };
-            return rgb1.Compare(rgb2, cie);
-        }
-
         void CalcSampleDimensions(Vector startPoint, Vector direction)
         {
             int pickCount = 5;
@@ -70,7 +60,7 @@ void CalcSampleDimensions(Vector startPoint, Vector direction)
                     {
                         pickPoint2 += sideDirs[j];
                         Color checkColor = tileMap.GetPixel(pickPoint2.X, pickPoint2.Y);
-                        double diff = GetColorDifference(refColor, checkColor);
+                        double diff = refColor.DifferenceTo(checkColor);
                         if (diff > Config.Data.shoreContrast)
                             break;
                         riverHalfWidth[j] += 1.0;
@@ -115,7 +105,7 @@ double GetSampleDifference(SimpleBitmap s1, SimpleBitmap s2)
                 {
                     Color c1 = s1.GetPixel(i, j);
                     Color c2 = s2.GetPixel(i, j);
-                    double pixelDelta = GetColorDifference(c1, c2);
+                    double pixelDelta = c1.DifferenceTo(c2);
                     totalDelta += pixelDelta;
                 }
             return totalDelta / (sampleWidth * sampleLength);
@@ -176,7 +166,6 @@ public Tracer()
             Stopwatch sw = new Stopwatch();
             sw.Start();
 
-            cie = new Cie1976Comparison();
             tileMap = new TileMap(Config.Data.zoom);
 
             var way = new List<Vector>();