Add helper

bands_plot_poc.ipynb

@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -12,41 +12,45 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [],
    "source": [
     "import numpy as np\n",
     "import plotly.graph_objects as go\n",
     "\n",
     "\n",
-    "class Model(tl.HasTraits):\n",
-    "    plot = tl.Instance(go.FigureWidget, allow_none=True)\n",
+    "class Helper:\n",
+    "    def init(self):\n",
+    "        self.plot = go.FigureWidget()\n",
+    "        self.plot.add_scatter(y=[2, 1, 4, 3])\n",
     "\n",
+    "\n",
+    "class Model(tl.HasTraits):\n",
     "    seed = tl.Int(0)\n",
     "\n",
     "    def __init__(self, *args, **kwargs):\n",
     "        super().__init__(*args, **kwargs)\n",
-    "        self.plot = go.FigureWidget()\n",
     "\n",
-    "        self._init_plot()\n",
+    "        self._helper = Helper()\n",
+    "        self._helper.init()\n",
     "\n",
-    "    def _init_plot(self):\n",
-    "        self.plot.add_scatter(y=[2, 1, 4, 3])\n",
+    "    @property\n",
+    "    def plot(self):\n",
+    "        return self._helper.plot\n",
     "\n",
     "    def update_plot(self):\n",
     "        np.random.seed(self.seed)\n",
-    "\n",
-    "        self.plot.data[0].y = np.random.rand(len(self.plot.data[0].y))"
+    "        self._helper.plot.data[0].y = np.random.rand(len(self.plot.data[0].y))"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [],
    "source": [
-    "class View(ipw.VBox):\n",
+    "class ViewController(ipw.VBox):\n",
     "    \"\"\"\"\"\"\n",
     "\n",
     "    def __init__(self, model: Model, **kwargs):\n",
@@ -72,22 +76,45 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 18,
    "metadata": {},
    "outputs": [],
    "source": [
     "model = Model()\n",
-    "view = View(model)"
+    "vc = ViewController(model)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 19,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "ac3102bd7834466a9aa996c7b15a4b8d",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "ViewController(children=(FigureWidget({\n",
+       "    'data': [{'type': 'scatter', 'uid': '8db32a44-ee27-4e6a-9923-c2d62…"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
    "source": [
-    "view"
+    "vc"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
@@ -97,7 +124,15 @@
    "name": "python3"
   },
   "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
    "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
    "version": "3.9.13"
   }
  },