correct the way to identify colors for mass pos

closes #157 (closed)

Have to check again after !168 (merged) to get the correct convert factor for mass pos.

sohstationviewer/view/plotting/plotting_widget/plotting.py

@@ -5,6 +5,9 @@ from sohstationviewer.controller.util import get_val
 from sohstationviewer.controller.plotting_data import get_masspos_value_colors
 
 from sohstationviewer.view.util.color import clr
+from sohstationviewer.view.plotting.plotting_widget.plotting_helper import (
+    get_colors_sizes_for_abs_y_from_value_colors
+)
 from sohstationviewer.conf import constants
 
 
@@ -378,26 +381,14 @@ class Plotting:
         self.plotting_axes.set_axes_info(
             ax, [total_x], chan_db_info=chan_db_info, y_list=y_list)
         for x, y in zip(x_list, y_list):
+            # plot to have artist pl.Line2D to get pick
             ax.myPlot = ax.plot(x, y,
                                 linestyle='-', linewidth=0.7,
                                 color=self.parent.display_color['sub_basic'],
                                 picker=True, pickradius=3,
                                 zorder=constants.Z_ORDER['LINE'])[0]
-            colors = [None] * len(y)
-            sizes = [1.5] * len(y)
-            for i in range(len(y)):
-                count = 0
-                prev_v = 0
-                for v, c in value_colors:
-                    if count < (len(value_colors) - 1):
-                        if prev_v < abs(y[i]) <= v:
-                            colors[i] = clr[c]
-                            break
-                    else:
-                        colors[i] = clr[c]
-                        break
-                    prev_v = v
-                    count += 1
+            colors, sizes = get_colors_sizes_for_abs_y_from_value_colors(
+                y, value_colors)
             ax.scatter(x, y, marker='s', c=colors, s=sizes,
                        zorder=constants.Z_ORDER['DOT'])
         ax.x_list = x_list