[chronojump] JumpsRjFatigue graph linepoint (was lines) and do not show prediction with just 1 point (Rj of 1 jum

[Xavier de Blas <xaviblas src gnome org>]

commit b2d058a36e57c71da6a9b0476d7069a7685e6b36
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Mar 21 13:08:43 2022 +0100

    JumpsRjFatigue graph linepoint (was lines) and do not show prediction with just 1 point (Rj of 1 jump)

 src/gui/cairo/jumpsRjFatigue.cs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/src/gui/cairo/jumpsRjFatigue.cs b/src/gui/cairo/jumpsRjFatigue.cs
index c9cb17a04..4d5a21325 100644
--- a/src/gui/cairo/jumpsRjFatigue.cs
+++ b/src/gui/cairo/jumpsRjFatigue.cs
@@ -16,7 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
- *  Copyright (C) 2020   Xavier de Blas <xaviblas gmail com> 
+ *  Copyright (C) 2022   Xavier de Blas <xaviblas gmail com>
  */
 
 using System;
@@ -87,13 +87,15 @@ public class JumpsRjFatigueGraph : CairoXY
                paintAxis();
 
                g.SetSourceColor(red);
-               plotPredictedLine(predictedLineTypes.STRAIGHT, predictedLineCrossMargins.TOUCH);
+
+               if(point_l.Count > 1)
+                       plotPredictedLine(predictedLineTypes.STRAIGHT, predictedLineCrossMargins.TOUCH);
                //g.SetSourceColor(black);
                g.SetSourceColor(gray99);
                divideAndPlotAverage(divideIn);
                g.SetSourceColor(black);
 
-               plotRealPoints(PlotTypes.LINES);
+               plotRealPoints(PlotTypes.POINTSLINES);
 
                writeTitle();