Added "delete all points" button and functionality

GUI_draft.py

@@ -215,6 +215,12 @@ class MainWindow(QMainWindow):
         self.btn_export_points.clicked.connect(self.export_points)
         btn_layout.addWidget(self.btn_export_points)
 
+        # Remove Points
+        self.btn_clear_points = QPushButton("Clear Points")
+        self.btn_clear_points.clicked.connect(self.clear_points)
+        btn_layout.addWidget(self.btn_clear_points)
+
+
         main_layout.addLayout(btn_layout)
         self.setCentralWidget(main_widget)
         self.resize(900, 600)
@@ -256,6 +262,13 @@ class MainWindow(QMainWindow):
             print(f"Exported {len(points_array)} points to {file_path}")
 
 
+    def clear_points(self):
+        """Remove all placed points (list & scene)."""
+        self.image_view.points.clear()
+        self.image_view._clear_point_items()
+
+
+
 def main():
     app = QApplication(sys.argv)
     window = MainWindow()