Hamburger Menu

lib/matplotlib/backend_bases.py

@@ -2903,6 +2903,7 @@ class NavigationToolbar2:
         ('Home', 'Reset original view', 'home', 'home'),
         ('Back', 'Back to previous view', 'back', 'back'),
         ('Forward', 'Forward to next view', 'forward', 'forward'),
+        ('Views', 'Snapping to views', 'matplotlib', 'view_snap'),
         (None, None, None, None),
         ('Pan',
          'Left button pans, Right button zooms\n'
@@ -3366,6 +3367,9 @@ def save_figure(self, *args):
         """
         raise NotImplementedError
 
+    def view_snap(self):
+        pass
+
     def update(self):
         """Reset the Axes stack."""
         self._nav_stack.clear()

lib/matplotlib/backends/_backend_tk.py

@@ -947,6 +947,23 @@ def save_figure(self, *args):
         except Exception as e:
             tkinter.messagebox.showerror("Error saving file", str(e))
 
+    def view_snap(self, *args):
+        btn = self._buttons['Views']
+        self._view_menu = tk.Menu(self, tearoff=0)
+        def set_view(elev, azim):
+            ax = self.canvas.figure.gca()
+            if hasattr(ax, 'view_init'):
+                ax.view_init(elev=elev, azim=azim)
+                self.canvas.draw_idle()
+        self._view_menu.add_command(label="XY Plane", command=lambda: set_view(90, -90))
+        self._view_menu.add_command(label="XZ Plane", command=lambda: set_view(0, -90))
+        self._view_menu.add_command(label="YZ Plane", command=lambda: set_view(0, 0))
+        self._view_menu.update_idletasks()
+        x = btn.winfo_rootx()
+        y = btn.winfo_rooty() - self._view_menu.winfo_reqheight()
+        self._view_menu.tk_popup(x, y)
+        self._view_menu.grab_release()
+
     def set_history_buttons(self):
         state_map = {True: tk.NORMAL, False: tk.DISABLED}
         can_back = self._nav_stack._pos > 0

lib/matplotlib/backends/backend_gtk3.py

@@ -400,6 +400,22 @@ def on_notify_filter(*args):
             dialog.run()
             dialog.destroy()
 
+    def view_snap(self, *args):
+        widget = args[0]
+        self._view_menu = Gtk.Menu()
+        def draw_lambda(elev, azim):
+            ax = self.canvas.figure.gca()
+            ax.view_init(elev=elev, azim=azim)
+            self.canvas.draw()
+        views = [("XY Plane", 90, -90), ("XZ Plane", 0, -90), ("YZ Plane", 0, 0)]
+        for name, el, az in views:
+            item = Gtk.MenuItem(label=name)
+            item.connect("activate", lambda x, e=el, a=az: draw_lambda(e, a))
+            self._view_menu.append(item)
+        self._view_menu.show_all()
+        self._view_menu.popup_at_widget(widget, Gdk.Gravity.NORTH,
+                                        Gdk.Gravity.SOUTH, None)
+
 
 class ToolbarGTK3(ToolContainerBase, Gtk.Box):
     _icon_extension = '-symbolic.svg'

lib/matplotlib/backends/backend_gtk4.py

@@ -435,6 +435,27 @@ def on_response(dialog, response):
         dialog.show()
         return self.UNKNOWN_SAVED_STATUS
 
+    def view_snap(self, *args):
+        widget = args[0]
+        self._view_menu = Gtk.Popover()
+        menu_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=0)
+        self._view_menu.set_has_arrow(False)
+        self._view_menu.set_position(Gtk.PositionType.TOP)
+        self._view_menu.set_child(menu_box)
+        def draw_lambda(elev, azim):
+            ax = self.canvas.figure.gca()
+            ax.view_init(elev=elev, azim=azim)
+            self.canvas.draw()
+            self._view_menu.popdown()
+        views = [("XY Plane", 90, -90), ("XZ Plane", 0, -90), ("YZ Plane", 0, 0)]
+        for name, el, az in views:
+            item = Gtk.Button(label=name)
+            item.set_has_frame(False)
+            item.connect("clicked", lambda x, e=el, a=az: draw_lambda(e, a))
+            menu_box.append(item)
+        self._view_menu.set_parent(widget)
+        self._view_menu.popup()
+
 
 class ToolbarGTK4(ToolContainerBase, Gtk.Box):
     _icon_extension = '-symbolic.svg'

lib/matplotlib/backends/backend_qt.py

@@ -968,6 +968,20 @@ def save_figure(self, *args):
                     QtWidgets.QMessageBox.StandardButton.NoButton)
         return fname
 
+    def view_snap(self, *args):
+        action = self._actions.get('view_snap')
+        btn = self.widgetForAction(action)
+        self._view_menu = QtWidgets.QMenu(self)
+        def draw_lambda(elev, azim):
+            ax = self.canvas.figure.gca()
+            ax.view_init(elev=elev, azim=azim)
+            self.canvas.draw()
+        self._view_menu.addAction("XY Plane", lambda: draw_lambda(90, -90))
+        self._view_menu.addAction("XZ Plane", lambda: draw_lambda(0, -90))
+        self._view_menu.addAction("YZ Plane", lambda: draw_lambda(0, 0))
+        point = btn.mapToGlobal(QtCore.QPoint(0, btn.height()))
+        self._view_menu.exec(point)
+
     def set_history_buttons(self):
         can_backward = self._nav_stack._pos > 0
         can_forward = self._nav_stack._pos < len(self._nav_stack) - 1

lib/mpl_toolkits/mplot3d/axes3d.py

@@ -1546,11 +1546,6 @@ def _on_move(self, event):
         if not self.button_pressed:
             return
 
-        if self.get_navigate_mode() is not None:
-            # we don't want to rotate if we are zooming/panning
-            # from the toolbar
-            return
-
         if self.M is None:
             return
 
@@ -1563,6 +1558,11 @@ def _on_move(self, event):
         w = self._pseudo_w
         h = self._pseudo_h
 
+        if self.get_navigate_mode() is not None:
+            # we don't want to rotate if we are zooming/panning
+            # from the toolbar
+            return
+
         # Rotation
         if self.button_pressed in self._rotate_btn:
             # rotate viewing point