Updated qlbm_embedded.py so get_initial_distribution_figure() now always adds a peach, semi-transparent Mesh3d unit cube

qlbm_embedded.py

@@ -450,6 +450,61 @@ def get_initial_distribution_figure(distribution_type, N, show_edges=False):
         caps=dict(x_show=False, y_show=False, z_show=False)
     )]
 
+    # Add translucent peach unit cube to give spatial frame
+    cube_x = [0, 1, 1, 0, 0, 1, 1, 0]
+    cube_y = [0, 0, 1, 1, 0, 0, 1, 1]
+    cube_z = [0, 0, 0, 0, 1, 1, 1, 1]
+    cube_color = "rgba(255,218,185,0.25)"  # Peach with transparency
+
+    data.append(go.Mesh3d(
+        x=cube_x,
+        y=cube_y,
+        z=cube_z,
+        i=[7, 0, 0, 0, 4, 4, 6, 6, 4, 0, 3, 2],
+        j=[3, 4, 1, 2, 5, 6, 5, 2, 0, 1, 6, 3],
+        k=[0, 7, 2, 3, 6, 7, 1, 1, 5, 5, 7, 6],
+        opacity=0.18,
+        color=cube_color,
+        flatshading=True,
+        showscale=False,
+        name="Unit Cube"
+    ))
+
+    cube_edge_x = [
+        0, 1, 1, 0, 0, None,
+        0, 1, 1, 0, 0, None,
+        0, 0, None,
+        1, 1, None,
+        1, 1, None,
+        0, 0
+    ]
+    cube_edge_y = [
+        0, 0, 1, 1, 0, None,
+        0, 0, 1, 1, 0, None,
+        0, 0, None,
+        0, 0, None,
+        1, 1, None,
+        1, 1
+    ]
+    cube_edge_z = [
+        0, 0, 0, 0, 0, None,
+        1, 1, 1, 1, 1, None,
+        0, 1, None,
+        0, 1, None,
+        0, 1, None,
+        0, 1
+    ]
+
+    data.append(go.Scatter3d(
+        x=cube_edge_x,
+        y=cube_edge_y,
+        z=cube_edge_z,
+        mode='lines',
+        line=dict(color='#E3A079', width=3),
+        opacity=0.9,
+        name='Unit Cube Frame'
+    ))
+
     if show_edges:
         # Create grid lines
         Y_yz, Z_yz = np.meshgrid(y_indices, z_indices, indexing='ij')
@@ -1439,12 +1494,6 @@ def _build_control_panels(plotter):
                 color="primary",
                 classes="mb-2"
             )
-            vuetify3.VCardSubtitle("Governing Equations", classes="text-caption font-weight-bold mt-2")
-            vuetify3.VListItemTitle("Laminar Navier-Stokes including energy", classes="text-caption")
-            vuetify3.VCardSubtitle("Inputs", classes="text-caption font-weight-bold mt-2")
-            vuetify3.VListItemTitle("Geometry, Boundary conditions - temperature and flow", classes="text-caption")
-            vuetify3.VCardSubtitle("Outputs", classes="text-caption font-weight-bold mt-2")
-            vuetify3.VListItemTitle("Surface plots on sections OR sampling through a line in 3D domain", classes="text-caption")
 
     # Geometry card
     with vuetify3.VCard(classes="mb-2"):