diff --git a/sohstationviewer/view/plotting/time_power_squared_dialog.py b/sohstationviewer/view/plotting/time_power_squared_dialog.py
index 1c5acdb972716024206009c925052032f57c0538..68ca2cf958ce8727dba7fa87b047de71db012d3a 100755
--- a/sohstationviewer/view/plotting/time_power_squared_dialog.py
+++ b/sohstationviewer/view/plotting/time_power_squared_dialog.py
@@ -89,8 +89,10 @@ class TimePowerSquaredWidget(plotting_widget.PlottingWidget):
         self.is_working = True
         self.set_key = key
         self.plotting_data1 = d_obj.waveform_data[key]
+        self.plot_total = len(self.plotting_data1)
 
         self.plotting_bot = const.BOTTOM
+        self.plotting_bot_pixel = const.BOTTOM_PX
         self.processed_channels = []
         self.channels = []
         self.tps_processors = []
@@ -220,7 +222,7 @@ class TimePowerSquaredWidget(plotting_widget.PlottingWidget):
 
         total_days = c_data['tps_data'].shape[0]
         plot_h = self.plotting_axes.get_height(
-            1.5 * total_days, bw_plots_distance=0.003)
+            total_days, bw_plots_distance=0.003, pixel_height=12.1)
         ax = self.create_axes(self.plotting_bot, plot_h)
         ax.text(
             -0.1, 1.2,
@@ -274,7 +276,8 @@ class TimePowerSquaredWidget(plotting_widget.PlottingWidget):
         ax.legend will create one label for each dot.
         """
         # set height of legend and distance bw legend and upper ax
-        plot_h = self.plotting_axes.get_height(7, bw_plots_distance=0.003)
+        plot_h = self.plotting_axes.get_height(
+            21, bw_plots_distance=0.004, pixel_height=12)
         ax = self.plotting_axes.canvas.figure.add_axes(
             [self.plotting_l, self.plotting_bot, self.plotting_w, plot_h],
             picker=True