Improved code readability

diff --git a/src/main/java/eu/svjatoslav/sixth/e3d/examples/GraphDemo.java b/src/main/java/eu/svjatoslav/sixth/e3d/examples/GraphDemo.java
index f644c3a..3dd9303 100755 (executable)
--- a/src/main/java/eu/svjatoslav/sixth/e3d/examples/GraphDemo.java
+++ b/src/main/java/eu/svjatoslav/sixth/e3d/examples/GraphDemo.java
@@ -24,6 +24,7 @@ public class GraphDemo {
     private static final double WAVE_FREQUENCY = 50d;
     private static final double WAVE_AMPLITUDE = 50d;
     private static final Color SQUARE_PLATE_COLOR = new Color("88F7");
+    private static final double GRAPH_SCALE = 50d;
 
     private static void makeSquarePlate(final ShapeCollection shapeCollection,
                                         final double y, final double x, final double z) {
@@ -55,8 +56,6 @@ public class GraphDemo {
             }
     }
 
-    private static final double scale = 50d;
-
     private static Graph getCosineGraph(final Point3D location) {
         final List<Point2D> data = new ArrayList<>();
         for (double x = 0; x < 20; x += 0.25) {
@@ -66,7 +65,7 @@ public class GraphDemo {
             data.add(p);
         }
 
-        return new Graph(scale, data, "Cosine", location);
+        return new Graph(GRAPH_SCALE, data, "Cosine", location);
     }
 
     private static Graph getFormula1Graph(final Point3D location) {
@@ -78,7 +77,7 @@ public class GraphDemo {
             data.add(p);
         }
 
-        return new Graph(scale, data, "y = sin(tan(x))", location);
+        return new Graph(GRAPH_SCALE, data, "y = sin(tan(x))", location);
     }
 
     private static Graph getFormula2Graph(final Point3D location) {
@@ -90,7 +89,7 @@ public class GraphDemo {
             data.add(p);
         }
 
-        return new Graph(scale, data, "y = ( (10-x)^2 ) / 30", location);
+        return new Graph(GRAPH_SCALE, data, "y = ( (10-x)^2 ) / 30", location);
     }
 
     private static Graph getFormula3Graph(final Point3D location) {
@@ -102,7 +101,7 @@ public class GraphDemo {
             data.add(p);
         }
 
-        return new Graph(scale, data, "y = sin(x/2) + sin(x/1.26)", location);
+        return new Graph(GRAPH_SCALE, data, "y = sin(x/2) + sin(x/1.26)", location);
     }
 
     private static Graph getSineGraph(final Point3D location) {
@@ -114,7 +113,7 @@ public class GraphDemo {
             data.add(p);
         }
 
-        return new Graph(scale, data, "Sine", location);
+        return new Graph(GRAPH_SCALE, data, "Sine", location);
     }
 
     private static Graph getTangentGraph(final Point3D location) {
@@ -131,7 +130,7 @@ public class GraphDemo {
             data.add(p);
         }
 
-        return new Graph(scale, data, "Tangent", location);
+        return new Graph(GRAPH_SCALE, data, "Tangent", location);
     }
 
     public static void main(final String[] args) {