ENH: create plots in Sphinx without ipympl

docs/lambda-k-pi/ampform-dpd.ipynb

@@ -55,7 +55,7 @@
     "from ampform_dpd.decay import DecayNode, ThreeBodyDecayChain\n",
     "from ampform_dpd.dynamics.builder import create_mass_symbol, get_mandelstam_s\n",
     "from ampform_dpd.io import aslatex\n",
-    "from IPython.display import Latex, Markdown, Math, display\n",
+    "from IPython.display import SVG, Image, Latex, Markdown, Math, display\n",
     "from qrules.particle import Particle, Spin, create_particle, load_pdg\n",
     "from tensorwaves.data import (\n",
     "    SympyDataTransformer,\n",
@@ -785,7 +785,14 @@
     "interactive_plot = w.interactive_output(update_dalitz_plot, sliders)\n",
     "fig_2d.tight_layout()\n",
     "fig_2d.colorbar(mesh, ax=ax_2d)\n",
-    "display(UI, interactive_plot)"
+    "\n",
+    "if STATIC_PAGE:\n",
+    "    filename = \"dalitz-plot-dpd.png\"\n",
+    "    fig_2d.savefig(filename)\n",
+    "    plt.close(fig_2d)\n",
+    "    display(UI, Image(filename))\n",
+    "else:\n",
+    "    display(UI, interactive_plot)"
    ]
   },
   {
@@ -867,8 +874,13 @@
     "for ax in axes:\n",
     "    ax.legend(fontsize=\"small\")\n",
     "\n",
-    "fig.tight_layout()\n",
-    "display(UI, interactive_plot)"
+    "if STATIC_PAGE:\n",
+    "    filename = \"histogram-dpd.svg\"\n",
+    "    fig.savefig(filename)\n",
+    "    plt.close(fig)\n",
+    "    display(UI, SVG(filename))\n",
+    "else:\n",
+    "    display(UI, interactive_plot)"
    ]
   }
  ],