From ca47e798c33db76722052bf5cc2ddd5911623c38 Mon Sep 17 00:00:00 2001
From: Victor <melnikukr@mail.ru>
Date: Sat, 22 Feb 2014 15:28:20 +0200
Subject: [PATCH] =?UTF-8?q?=D0=94=D0=BE=D0=BF=D0=BE=D0=BB=D0=BD=D0=B5?=
 =?UTF-8?q?=D0=BD=D0=B0=20=D0=9B=D0=A0-1=20=D0=B2=D0=B0=D1=80=D0=B8=D0=B0?=
 =?UTF-8?q?=D0=BD=D1=82=208?=
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---
 src/gm/LR_1_v8.java | 36 +++++++++++++++++++++---------------
 1 file changed, 21 insertions(+), 15 deletions(-)

diff --git a/src/gm/LR_1_v8.java b/src/gm/LR_1_v8.java
index 658a44c..c20b8f2 100644
--- a/src/gm/LR_1_v8.java
+++ b/src/gm/LR_1_v8.java
@@ -13,44 +13,50 @@ public class LR_1_v8 extends Application {
         new LR_1_v8();
     }
     
+    private static final double ARROW_WIDTH = 0.5;
+    private static final double ARROW_HEIGHT = 0.2;
     private static final double[][] ARROW_PTS = {
-        {0.0, 0.5, 0.4, 0.4, 0.5},
-        {0.0, 0.00, 0.2, -0.2, 0.00},
+        // x, y
+        {0.0, 0.0},
+        {ARROW_WIDTH, 0.0},
+        {4d * ARROW_WIDTH / 5d, ARROW_HEIGHT},
+        {4d * ARROW_WIDTH / 5d, -ARROW_HEIGHT},
+        {ARROW_WIDTH, 0.0},
     };
     
     private static final double N = 30;
     
     public LR_1_v8() {
-        super(900, 480);
+        super(900, 500);
         setTitle("LR_1 v8");
     }
 
     @Override
     protected void paint(GraphicsExt g) {
-        double x1 = 0, y1 = 2;
+        double x1 = 0, y1 = 2.5;
         for (int i = 0; i < N; i++) {
-            double x2 = x1 + (i / 50d);
+            final double scaleValue = (i / 24d);
+            double x2 = x1 + ARROW_WIDTH * scaleValue;
             double y2 = y1 + Math.sin(x2) / 5d;
             g.reset();
             g.translate(x2, y2);
             g.rotate(-Math.atan2(y2 - y1, x2 - x1));
-            drawArrow(g, i);
-            x1 = x2;
+            drawArrow(g, scaleValue);
+            x1 = x1 + ARROW_WIDTH * scaleValue; 
             y1 = y2;
         }
     }
     
-    private void drawArrow(GraphicsExt g, int num) {
-        final int length = ARROW_PTS[0].length;
-        double[][] points = new double[2][length];
-        double scale = num / 30d;
+    private void drawArrow(GraphicsExt g, double scaleValue) {
+        final int length = ARROW_PTS.length;
+        double[][] points = new double[length][2];
         for (int i = 0; i < length; i++) {
-            points[0][i] = ARROW_PTS[0][i] * scale;
-            points[1][i] = ARROW_PTS[1][i] * scale;
+            points[i][0] = ARROW_PTS[i][0] * scaleValue;
+            points[i][1] = ARROW_PTS[i][1] * scaleValue;
         }
-        g.move(points[0][0], points[1][0]);
+        g.move(points[0][0], points[0][1]);
         for (int i = 1; i < length; i++) {
-            g.draw(points[0][i], points[1][i]);
+            g.draw(points[i][0], points[i][1]);
         }
     }
 }