[chronojump] jumpsRjFatigue, better code for divideInTwoAndPlotAverage

[Xavier de Blas <xaviblas src gnome org>]

commit da292373af1e9f8538cc90369170279b8f0595f0
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Aug 17 13:48:43 2020 +0200

    jumpsRjFatigue, better code for divideInTwoAndPlotAverage

 src/gui/cairo/jumpsRjFatigue.cs | 47 +++++++++++++++++------------------------
 1 file changed, 19 insertions(+), 28 deletions(-)
---
diff --git a/src/gui/cairo/jumpsRjFatigue.cs b/src/gui/cairo/jumpsRjFatigue.cs
index 3507fd78..2d7ae64b 100644
--- a/src/gui/cairo/jumpsRjFatigue.cs
+++ b/src/gui/cairo/jumpsRjFatigue.cs
@@ -109,51 +109,42 @@ public class JumpsRjFatigueGraph : CairoXY
 
        private void divideInTwoAndPlotAverage()
        {
+               if(point_l.Count < 4)
+                       return;
+
                List<PointF> point_l_start = new List<PointF>();
                List<PointF> point_l_end = new List<PointF>();
                double sumIni = 0;
                double sumEnd = 0;
 
-               int i = 0;
-               foreach(PointF point in point_l)
+               for(int i = 0; i < point_l.Count; i ++)
                {
                        if(i < Math.Floor(point_l.Count / 2.0))
                        {
-                               point_l_start.Add(point);
-                               sumIni += point.Y;
-                               //LogB.Information(string.Format("Added to point_l_start: {0}", point));
+                               point_l_start.Add(point_l[i]);
+                               sumIni += point_l[i].Y;
+                               //LogB.Information(string.Format("Added to point_l_start: {0}", point_l[i]));
                        }
                        if(point_l.Count - i -1 < Math.Floor(point_l.Count / 2.0))
                        {
-                               point_l_end.Add(point);
-                               sumEnd += point.Y;
-                               //LogB.Information(string.Format("Added to point_l_end: {0}", point));
+                               point_l_end.Add(point_l[i]);
+                               sumEnd += point_l[i].Y;
+                               //LogB.Information(string.Format("Added to point_l_end: {0}", point_l[i]));
                        }
-
-                       i ++;
                }
 
-               if(point_l_start.Count == 0 || point_l_end.Count == 0)
-                       return;
-
-               double avgIni = sumIni / point_l_start.Count;
-               double avgEnd = sumEnd / point_l_end.Count;
-
-               g.MoveTo(calculatePaintX(point_l_start[0].X), calculatePaintY(avgIni));
-               g.LineTo(calculatePaintX(point_l_start[point_l_start.Count -1].X), calculatePaintY(avgIni));
-               printText(
-                               //Convert.ToInt32(calculatePaintX(point_l_start[0].X)) -2,
-                               graphWidth - outerMargins,
-                               Convert.ToInt32(calculatePaintY(avgIni)),
-                               0, textHeight, Util.TrimDecimals(avgIni, 2), g, alignTypes.CENTER);
+               paintHorizSegment (point_l_start[0].X, point_l_start[point_l_start.Count -1].X, sumIni / 
point_l_start.Count);
+               paintHorizSegment (point_l_end[0].X, point_l_end[point_l_end.Count -1].X, sumEnd / 
point_l_end.Count);
+       }
 
-               g.MoveTo(calculatePaintX(point_l_end[0].X), calculatePaintY(avgEnd));
-               g.LineTo(calculatePaintX(point_l_end[point_l_end.Count -1].X), calculatePaintY(avgEnd));
+       private void paintHorizSegment (double xa, double xb, double y)
+       {
+               g.MoveTo(calculatePaintX(xa), calculatePaintY(y));
+               g.LineTo(calculatePaintX(xb), calculatePaintY(y));
                printText(
-                               //Convert.ToInt32(calculatePaintX(point_l_end[point_l_end.Count -1].X)) +2,
                                graphWidth - outerMargins,
-                               Convert.ToInt32(calculatePaintY(avgEnd)),
-                               0, textHeight, Util.TrimDecimals(avgEnd, 2), g, alignTypes.CENTER);
+                               Convert.ToInt32(calculatePaintY(y)),
+                               0, textHeight, Util.TrimDecimals(y, 2), g, alignTypes.CENTER);
 
                g.Stroke ();
        }