From 5da8d98af6f4341523c3982983762d2b4befe961 Mon Sep 17 00:00:00 2001
From: Kavin Teenakul <andythe_great@protonmail.com>
Date: Sun, 19 Jul 2026 23:47:31 +0200
Subject: [PATCH] Add residual plot button to solver panel

---
 CfdOF/Solve/TaskPanelCfdSolverControl.py |  9 +++++++++
 Gui/TaskPanelCfdSolverControl.ui         | 10 ++--------
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/CfdOF/Solve/TaskPanelCfdSolverControl.py b/CfdOF/Solve/TaskPanelCfdSolverControl.py
index 11ce89ff..1b568baa 100644
--- a/CfdOF/Solve/TaskPanelCfdSolverControl.py
+++ b/CfdOF/Solve/TaskPanelCfdSolverControl.py
@@ -76,6 +76,7 @@ def __init__(self, solver_runner_obj):
         self.form.pb_edit_inp.clicked.connect(self.editSolverInputFile)
         self.form.pb_run_solver.clicked.connect(self.runSolverProcess)
         self.form.pb_paraview.clicked.connect(self.openParaview)
+        self.form.pb_plot_residuals.clicked.connect(self.openResidualPlot)
         self.form.inputParallel.stateChanged.connect(self.updateUI)
 
         self.Start = time.time()
@@ -325,6 +326,14 @@ def gotErrorLines(self, lines):
         if print_err is not None:
             self.consoleMessage(print_err, 'Error')
 
+    def openResidualPlot(self):
+        plotter = self.solver_object.Proxy.residual_plotter
+        if not plotter.times or not any(plotter.values.values()):
+            self.consoleMessage("No residual data available to plot", 'Error')
+            return
+        plotter.updated = True
+        plotter.refresh()
+
     def openParaview(self):
         QApplication.setOverrideCursor(Qt.WaitCursor)
         case_path = os.path.abspath(os.path.join(self.working_dir, self.solver_object.InputCaseName))
diff --git a/Gui/TaskPanelCfdSolverControl.ui b/Gui/TaskPanelCfdSolverControl.ui
index a44126b0..bda6a792 100644
--- a/Gui/TaskPanelCfdSolverControl.ui
+++ b/Gui/TaskPanelCfdSolverControl.ui
@@ -234,15 +234,9 @@
       </widget>
      </item>
      <item row="2" column="1">
-      <widget class="QLabel" name="label_5">
-       <property name="font">
-        <font>
-         <weight>75</weight>
-         <bold>true</bold>
-        </font>
-       </property>
+      <widget class="QPushButton" name="pb_plot_residuals">
        <property name="text">
-        <string/>
+        <string>Residuals</string>
        </property>
       </widget>
      </item>