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     "end_time": "2019-09-26T06:39:45.474473Z",
     "start_time": "2019-09-26T06:39:42.982516Z"
    }
   },
   "outputs": [],
   "source": [
    "%matplotlib inline \n",
    "import json\n",
    "import numpy as np\n",
    "import os\n",
    "import pylab as plt"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import matplotlib as mpl\n",
    "mpl.rc('font', family='Times New Roman')\n",
    "plt.rcParams[\"mathtext.fontset\"] = \"stix\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": [
     "parameters"
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   },
   "outputs": [],
   "source": [
    "input_file = 'output.json'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Values from a previous calculation can be inserted here to reproduce the results \n",
    "step_dict = {}\n",
    "if os.path.exists(input_file):\n",
    "    with open(input_file, 'r') as f:\n",
    "        step_dict_str = json.load(f)\n",
    "    for k,v in step_dict_str.items():\n",
    "        step_dict[int(k)] = v"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "ind, temp_lst = [], []\n",
    "for k,v in step_dict.items():\n",
    "    ind.append(k)\n",
    "    temp_lst.append(v['temperature_next'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "temp_array = np.array(temp_lst)[np.array(ind)]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# plot the convergence of loop calculations\n",
    "plt.plot(np.arange(1, len(temp_array)), temp_array[0:-1], 'ro-', label=r\"$T^e$\")\n",
    "plt.plot(np.arange(1, len(temp_array)), temp_array[1:], 'bo-', label=r\"$T^p$\")\n",
    "plt.legend(fontsize=14)\n",
    "plt.tick_params(axis='both', labelsize=14)\n",
    "plt.xlabel('Number of loops', fontsize=14)\n",
    "plt.ylabel('Temperature (K)', fontsize=14)\n"
   ]
  }
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