Using fieldset.GridID for triangles plot

Author: erikvansebille

docs/user_guide/examples/tutorial_nestedgrids.ipynb

@@ -76,7 +76,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "polygon = np.array([(10, 15), (25, 10), (25, 25), (17, 35), (10, 32)])\n",
+    "polygon = np.array([(10, 15), (25, 10), (25, 25), (17, 36), (10, 32)])\n",
     "grid_polygons.append(polygon)\n",
     "\n",
     "ds_in.append(setup_nested_ds(polygon))\n",
@@ -393,9 +393,9 @@
     "plot_args = {\"cmap\": cmap, \"edgecolors\": \"k\", \"linewidth\": 0.5}\n",
     "\n",
     "triang = mtri.Triangulation(\n",
-    "    uxda.uxgrid.node_lon.values,\n",
-    "    uxda.uxgrid.node_lat.values,\n",
-    "    triangles=uxda.uxgrid.face_node_connectivity.values,\n",
+    "    fieldset.GridID.grid.uxgrid.node_lon.values,\n",
+    "    fieldset.GridID.grid.uxgrid.node_lat.values,\n",
+    "    triangles=fieldset.GridID.grid.uxgrid.face_node_connectivity.values,\n",
     ")\n",
     "facecolors = np.squeeze(uxda[0, :].values)\n",
     "\n",