increase size of mass position data points and make them pickable

sohstationviewer/view/plotting/plotting_widget/plotting.py

@@ -382,7 +382,7 @@ class Plotting:
                                 color=self.parent.display_color['sub_basic'],
                                 zorder=constants.Z_ORDER['LINE'])[0]
             colors = [None] * len(y)
-            sizes = [0.5] * len(y)
+            sizes = [1.5] * len(y)
             for i in range(len(y)):
                 count = 0
                 prev_v = 0
@@ -397,7 +397,8 @@ class Plotting:
                     prev_v = v
                     count += 1
             ax.scatter(x, y, marker='s', c=colors, s=sizes,
-                       zorder=constants.Z_ORDER['DOT'])
+                       picker=True, pickradius=15,
+                       zorder=constants.Z_ORDER['DOT'],)
         ax.x_list = x_list
         ax.y_list = y_list
         ax.chan_db_info = chan_db_info