{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Plot the z/p characteristics of a Hybrid-Pressure vertical coordinate\n",
    "### (cf. python package `pyvgrid` from PyPI and its command-line tool `mkvgrid` to build new vertical coordinates)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "execution": {
     "iopub.execute_input": "2025-01-13T11:35:14.503946Z",
     "iopub.status.busy": "2025-01-13T11:35:14.503476Z",
     "iopub.status.idle": "2025-01-13T11:35:14.837440Z",
     "shell.execute_reply": "2025-01-13T11:35:14.836945Z"
    }
   },
   "outputs": [],
   "source": [
    "# import & initialize epygram\n",
    "import epygram\n",
    "epygram.init_env()\n",
    "\n",
    "import os\n",
    "INPUTS_DIR = os.path.join('..', 'inputs')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "execution": {
     "iopub.execute_input": "2025-01-13T11:35:14.839582Z",
     "iopub.status.busy": "2025-01-13T11:35:14.839333Z",
     "iopub.status.idle": "2025-01-13T11:35:17.028873Z",
     "shell.execute_reply": "2025-01-13T11:35:17.028361Z"
    }
   },
   "outputs": [],
   "source": [
    "# open resource in read mode\n",
    "r = epygram.open(os.path.join(INPUTS_DIR, 'ICMSHAROM+0022'), 'r')\n",
    "hybridP_geo = r.readfield('S058TEMPERATURE').geometry.vcoordinate"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "execution": {
     "iopub.execute_input": "2025-01-13T11:35:17.030922Z",
     "iopub.status.busy": "2025-01-13T11:35:17.030783Z",
     "iopub.status.idle": "2025-01-13T11:35:17.033365Z",
     "shell.execute_reply": "2025-01-13T11:35:17.032884Z"
    }
   },
   "outputs": [],
   "source": [
    "vmean = \"LAPRXPK=False\"  # or 'geometric' or 'arithmetic'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "execution": {
     "iopub.execute_input": "2025-01-13T11:35:17.035124Z",
     "iopub.status.busy": "2025-01-13T11:35:17.034997Z",
     "iopub.status.idle": "2025-01-13T11:35:17.047340Z",
     "shell.execute_reply": "2025-01-13T11:35:17.047026Z"
    }
   },
   "outputs": [],
   "source": [
    "vg = r.geometry.vcoordinate.to_vgrid(vertical_mean=vmean,\n",
    "                                     vgrid_name=r.container.basename)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "execution": {
     "iopub.execute_input": "2025-01-13T11:35:17.048716Z",
     "iopub.status.busy": "2025-01-13T11:35:17.048557Z",
     "iopub.status.idle": "2025-01-13T11:35:17.507579Z",
     "shell.execute_reply": "2025-01-13T11:35:17.507089Z"
    }
   },
   "outputs": [],
   "source": [
    "# y and x may be among ('z', 'p', 'level', 'pthickness', 'zthickness')\n",
    "fig = vg.bokeh_plot_y_vs_x('level', 'pthickness')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "execution": {
     "iopub.execute_input": "2025-01-13T11:35:17.509767Z",
     "iopub.status.busy": "2025-01-13T11:35:17.509546Z",
     "iopub.status.idle": "2025-01-13T11:35:17.511953Z",
     "shell.execute_reply": "2025-01-13T11:35:17.511558Z"
    }
   },
   "outputs": [],
   "source": [
    "# Save and open html output file:\n",
    "# vg.bokeh_fig_to_html(fig)\n",
    "\n",
    "# which will look like:"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "![title](vgrid.png)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "execution": {
     "iopub.execute_input": "2025-01-13T11:35:17.513630Z",
     "iopub.status.busy": "2025-01-13T11:35:17.513453Z",
     "iopub.status.idle": "2025-01-13T11:35:17.517469Z",
     "shell.execute_reply": "2025-01-13T11:35:17.517051Z"
    }
   },
   "outputs": [],
   "source": [
    "print(vg.write_AB_to_namelist())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3 (ipykernel)",
   "language": "python",
   "name": "python3"
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  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.10.12"
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