feat: добавил отображение коридоров допустимых значений на увеличенной области графиков

src/gui/widgets/plot.py

@@ -26,6 +26,25 @@ class PlotWidget(BasePlotWidget):
             return region
         return None
 
+    def _find_mid_in_stage(self,
+                           stage: str,
+                           dataframe: pd.DataFrame,
+                           signal_name: str) -> float:
+        if stage in self._stages:
+            stage_diff = np.diff(dataframe[stage])
+            start_index = np.where(stage_diff == 1)[0]
+            finish_index = np.where(stage_diff == -1)[0]
+
+            data = dataframe[signal_name] if signal_name in dataframe.columns.tolist() else []
+
+            if data.size and start_index.size:
+                start = start_index[0]
+                finish = finish_index[0] if finish_index.size else (len(data) - 1)
+                data_slice = data[start:finish]
+                mean = np.mean(data_slice)
+                return mean
+            return 0.0
+
     def _build_widget(self, dataframe: pd.DataFrame) -> QWidget:
         widget = QWidget()
         layout = QVBoxLayout()
@@ -46,14 +65,30 @@ class PlotWidget(BasePlotWidget):
                     if region:
                         plot_widget.addItem(region)
 
+            if settings["zoom"] and max(time_axis) < 5.0:
+                means_raw = [self._find_mid_in_stage("Welding",
+                                                     dataframe,
+                                                     signal["name"]) for signal in description["Signals"]]
+                mean = max(means_raw)
+                region_stable = pg.LinearRegionItem([mean - mean * 0.015,
+                                                     mean + mean * 0.015],
+                                                    orientation='horizontal')
+                region_stable.setBrush(pg.mkBrush([250, 250, 0, 25]))
+                plot_widget.addItem(region_stable)
+
+                region_overshoot = pg.LinearRegionItem([mean - mean * 0.05,
+                                                        mean + mean * 0.05],
+                                                       orientation='horizontal')
+                region_overshoot.setBrush(pg.mkBrush([0, 250, 0, 30]))
+                plot_widget.addItem(region_overshoot)
+
+                plot_widget.setYRange(mean - 260, mean + 260)
+                plot_widget.setInteractive(False)
+
             for signal in description["Signals"]:
                 if signal["name"] in dataframe_headers:
                     plot = plot_widget.plot(time_axis, dataframe[signal["name"]], pen=signal["pen"])
                     legend.addItem(plot, signal["name"])
-                    if settings["zoom"] and max(time_axis) < 5.0:
-                        max_value = max(dataframe[signal["name"]])
-                        plot_widget.setYRange(max_value - 200, max_value)
-                        plot_widget.setInteractive(False)
 
             layout.addWidget(plot_widget)