{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# New visualization function tutorial"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import healpy as hp\n",
    "from healpy.newvisufunc import projview, newprojplot"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import matplotlib.pyplot as plt\n",
    "import numpy as np"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "m = hp.read_map(\n",
    "    \"../healpy/test/data/wmap_band_iqumap_r9_7yr_W_v4_udgraded32_masked_smoothed10deg_fortran.fits\"\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# classic healpy mollweide projections plot\n",
    "# other matplotlib projections are possible, such as: \"aitoff\",\"hammer\",lambert\"\n",
    "projview(m, coord=[\"G\"], flip=\"astro\", projection_type=\"mollweide\");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# classic healpy mollweide projections plot with graticule\n",
    "projview(\n",
    "    m, coord=[\"G\"], graticule=True, graticule_labels=True, projection_type=\"mollweide\"\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# classic healpy mollweide projections plot with graticule and axis labels\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"horizontal\",\n",
    "    projection_type=\"mollweide\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# classic healpy mollweide projections plot with graticule and axis labels and vertical color bar\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    projection_type=\"mollweide\",\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# classic healpy mollweide projections plot with graticule and axis labels and vertical color bar, when min and max is set\n",
    "# to be different than the min, max of the data, the colorbar is extended\n",
    "# with title\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=45,\n",
    "    projection_type=\"mollweide\",\n",
    "    title=\"Mollweide projection, astro convention (default)\",\n",
    ");\n",
    "newprojplot(theta=np.radians(50), phi=np.radians(60), marker=\"o\", color=\"r\", markersize=10);"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# classic healpy mollweide projections plot with graticule and axis labels and vertical color bar, when min and max is set\n",
    "# to be different than the min, max of the data, the colorbar is extended\n",
    "# with title, GEO convention for longitude\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=45,\n",
    "    projection_type=\"mollweide\",\n",
    "    title=\"Mollweide projection, geo convention\",\n",
    "    flip=\"geo\",\n",
    "    phi_convention=\"clockwise\"\n",
    ");\n",
    "# newprojplot knows about the flip in plotting longitude\n",
    "newprojplot(theta=np.radians(50), phi=np.radians(60), marker=\"o\", color=\"r\", markersize=10);"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# hammer view plot with graticule and axis labels and vertical color bar, when min and max is set\n",
    "# to be different than the min, max of the data, the colorbar is extended\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=30,\n",
    "    projection_type=\"hammer\",\n",
    "    title=\"Hammer projection\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# aitoff view plot with graticule and axis labels and vertical color bar, when min and max is set\n",
    "# to be different than the min, max of the data, the colorbar is extended\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=30,\n",
    "    projection_type=\"aitoff\",\n",
    "    title=\"Aitoff projection\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# equivalent to cartview in classic healpy\n",
    "projview(m, coord=[\"G\"], projection_type=\"cart\");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# equivalent to cartview\n",
    "projview(m, coord=[\"G\"], projection_type=\"cart\", xlabel=\"xlabel\", ylabel=\"ylabel\");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# cartview, with labels and graticule\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"horizontal\",\n",
    "    projection_type=\"cart\",\n",
    "    title=\"Cart projection\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# cartview, with labels and graticule\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"horizontal\",\n",
    "    projection_type=\"cart\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# cartview, with labels and graticule, vertical cbar\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    projection_type=\"cart\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# 3d view\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    hold=False,\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"horizontal\",\n",
    "    projection_type=\"3d\",\n",
    "    title=\"3D projection\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# 3d view, vertical cbar\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    hold=False,\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    projection_type=\"3d\",\n",
    "    unit=\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    cmap=\"viridis\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# polar view\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    cb_orientation=\"horizontal\",\n",
    "    projection_type=\"polar\",\n",
    "    title=\"Polar projection\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# polar view, vertical cbar\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=\"cbar label\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    projection_type=\"polar\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# polar view, override example\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    hold=False,\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    flip=\"astro\",\n",
    "    projection_type=\"polar\",\n",
    "    unit=\"cbar label\",\n",
    "    cb_orientation=\"horizontal\",\n",
    "    override_plot_properties={\n",
    "        \"cbar_shrink\": 0.5,\n",
    "        \"cbar_pad\": 0.02,\n",
    "        \"cbar_label_pad\": -35,\n",
    "        \"figure_width\": 16,\n",
    "        \"figure_size_ratio\": 0.63,\n",
    "    },\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Hammer projection, changed fontsize example & LaTex font test\n",
    "# and changed color of the axis ticks and graticule\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=r\"cbar label $\\alpha$\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=30,\n",
    "    projection_type=\"hammer\",\n",
    "    title=\"Hammer projection\",\n",
    "    fontsize={\n",
    "        \"xlabel\": 20,\n",
    "        \"ylabel\": 20,\n",
    "        \"xtick_label\": 20,\n",
    "        \"ytick_label\": 20,\n",
    "        \"title\": 20,\n",
    "        \"cbar_label\": 20,\n",
    "        \"cbar_tick_label\": 20,\n",
    "    },\n",
    "    xtick_label_color=\"r\",\n",
    "    ytick_label_color=\"g\",\n",
    "    graticule_color=\"black\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Hammer projection, no x-axis (phi or longitudinal);; no phi tick label shift\n",
    "# This shows the true xtick labels\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=r\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=30,\n",
    "    projection_type=\"hammer\",\n",
    "    title=\"Hammer projection\",\n",
    "    phi_convention=\"symmetrical\",\n",
    ");\n",
    "\n",
    "# overlay the plot with another data\n",
    "s = 500\n",
    "plt.scatter(np.deg2rad(0), np.deg2rad(0), color=\"r\", marker=\"x\", linewidth=10, s=s);\n",
    "plt.scatter(np.deg2rad(120), np.deg2rad(0), color=\"r\", marker=\"x\", linewidth=10, s=s);\n",
    "plt.scatter(np.deg2rad(-120), np.deg2rad(0), color=\"r\", marker=\"x\", linewidth=10, s=s);\n",
    "plt.scatter(np.deg2rad(0), np.deg2rad(60), color=\"r\", marker=\"x\", linewidth=10, s=s);\n",
    "plt.scatter(np.deg2rad(0), np.deg2rad(-60), color=\"r\", marker=\"x\", linewidth=10, s=s);"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Hammer projection, override axis tick labels\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=r\"cbar label\",\n",
    "    xlabel=\"longitude\",\n",
    "    ylabel=\"latitude\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=30,\n",
    "    projection_type=\"hammer\",\n",
    "    title=\"Hammer projection\",\n",
    "    custom_xtick_labels=[\"A\", \"B\", \"C\", \"D\", \"E\"],\n",
    "    custom_ytick_labels=[\"F\", \"G\", \"H\", \"I\", \"J\"],\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Hammer projection, Equatorial coordinates\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\", \"C\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=r\"cbar label\",\n",
    "    xlabel=\"RA\",\n",
    "    ylabel=\"DEC\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=30,\n",
    "    projection_type=\"hammer\",\n",
    "    title=\"Hammer projection\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Cartesian projection in Local coordinates (transformed from Galaxy coordinates through Equatorial to local);\n",
    "# (This is a Galaxy radio emission apex at Pierre Auger Observatory);\n",
    "# azimuth convention with \"phi_convention='counterclockwise'\" is North:0, East:270, South:180, West:90\n",
    "local_sidereal_time = 18\n",
    "altitude = -35.206667\n",
    "rotAngles = [(180 + (local_sidereal_time * 15)) % 360, -(altitude - 90)]\n",
    "\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\", \"C\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=r\"cbar label\",\n",
    "    xlabel=\"azimuth\",\n",
    "    ylabel=\"zenith\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=30,\n",
    "    projection_type=\"cart\",\n",
    "    title=\"Cartesian projection\",\n",
    "    rot=rotAngles,\n",
    "    fontsize={\"xtick_label\": 20},\n",
    "    phi_convention=\"counterclockwise\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Cartesian projection in Local coordinates (transformed from Galaxy coordinates through Equatorial to local);\n",
    "# (This is the Galaxy radio emission apex at Pierre Auger Observatory);\n",
    "# azimuth convention with \"phi_convention='clockwise'\" is North:0, East:90, South:180, West:270\n",
    "\n",
    "local_sidereal_time = 18\n",
    "altitude = -35.206667\n",
    "rotAngles = [(180 + (local_sidereal_time * 15)) % 360, -(altitude - 90)]\n",
    "\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\", \"C\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=r\"cbar label\",\n",
    "    xlabel=\"azimuth\",\n",
    "    ylabel=\"zenith\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=30,\n",
    "    projection_type=\"cart\",\n",
    "    title=\"Cartesian projection\",\n",
    "    rot=rotAngles,\n",
    "    fontsize={\"xtick_label\": 20},\n",
    "    phi_convention=\"clockwise\",\n",
    ");"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Cartesian projection in Local coordinates (transformed from Galaxy coordinates through Equatorial to local);\n",
    "# (This is the Galaxy radio emission apex at Pierre Auger Observatory);\n",
    "# azimuth convention with \"phi_convention='symmetrical'\" is North:0, East:90, South:180, West:-90\n",
    "\n",
    "local_sidereal_time = 18\n",
    "altitude = -35.206667\n",
    "rotAngles = [(180 + (local_sidereal_time * 15)) % 360, -(altitude - 90)]\n",
    "\n",
    "projview(\n",
    "    m,\n",
    "    coord=[\"G\", \"C\"],\n",
    "    graticule=True,\n",
    "    graticule_labels=True,\n",
    "    unit=r\"cbar label\",\n",
    "    xlabel=\"azimuth\",\n",
    "    ylabel=\"zenith\",\n",
    "    cb_orientation=\"vertical\",\n",
    "    min=-0.05,\n",
    "    max=0.05,\n",
    "    latitude_grid_spacing=30,\n",
    "    projection_type=\"cart\",\n",
    "    title=\"Cartesian projection\",\n",
    "    rot=rotAngles,\n",
    "    fontsize={\"xtick_label\": 20},\n",
    "    phi_convention=\"symmetrical\",\n",
    ")\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# return only data\n",
    "# [longitude,  latitude, grid_map]\n",
    "# longitude,  latitude are 1D arrays to convert them, to 2D arrays for the plot use np.meshgrid(longitude,  latitude);;\n",
    "# longtitude goes from, -pi to pi (-180 to 180 in degs);\n",
    "# latitude goes from, -pi/2 to pi/2 (-90 to 90 in degs);\n",
    "\n",
    "longitude, latitude, grid_map = projview(m, coord=[\"G\"], return_only_data=True)\n",
    "print(longitude.shape)\n",
    "print(latitude.shape)\n",
    "print(grid_map.shape)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# This example shows two Planck colormaps.\n",
    "# The planck_log-colormap is used in combination with\n",
    "# symlog2 for optimal viewing of frequency maps.\n",
    "#\n",
    "# Additional displayed features:\n",
    "# Subfigures (Work the same way as mollview)\n",
    "# Serif font\n",
    "# Show tickmarkers\n",
    "# tick direction keyword\n",
    "# dipole/monopole subtraction\n",
    "\n",
    "m_scaled = m*3000\n",
    "projview(\n",
    "    m_scaled,\n",
    "    title=\"Planck colormap\",\n",
    "    cmap=\"planck\",\n",
    "    rlabel=r\"A$_{\\mathsf{ex. 1}}$\",\n",
    "    llabel=r\"$Q$\",\n",
    "    unit=r\"$\\mu$K\",\n",
    "    fontname=\"serif\",\n",
    "    width=10,\n",
    "    show_tickmarkers=True,\n",
    "    cbar_ticks=[-300, 0, 300],\n",
    "    cb_orientation=\"vertical\",\n",
    "    sub=121,\n",
    "    override_plot_properties={\"cbar_tick_direction\": \"in\"},\n",
    ");\n",
    "projview(\n",
    "    m_scaled,\n",
    "    title=\"Planck logarithmic colormap\",\n",
    "    cmap=\"planck_log\",\n",
    "    norm=\"symlog2\",\n",
    "    rlabel=r\"A$_{\\mathrm{ex. 3}}$\",\n",
    "    llabel=r\"$I$\",\n",
    "    unit=r\"$\\mu$K\",\n",
    "    min=-1e3,\n",
    "    max=1e7,\n",
    "    cb_orientation=\"vertical\",\n",
    "    sub=122,\n",
    ");\n",
    "plt.tight_layout();\n"
   ]
  },
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    "# This code shows some of the features listed above,\n",
    "# in addition to the WMAP colormap.\n",
    "projview(\n",
    "    m_scaled,\n",
    "    title=\"symlog normalization\",\n",
    "    cmap=\"planck\",\n",
    "    norm=\"symlog\",\n",
    "    rlabel=r\"A$_{\\mathsf{ex. 2}}$\",\n",
    "    llabel=r\"$Q$\",\n",
    "    unit=r\"$\\mu$K\",\n",
    "    cbar_ticks=[-3000, -30, 0, 30, 3000],\n",
    "    remove_mono=True,\n",
    "    show_tickmarkers=True,\n",
    "    sub=121,\n",
    "    override_plot_properties={\"cbar_tick_direction\": \"in\"},\n",
    "    norm_dict={\"linscale\": 0.5},\n",
    ");\n",
    "\n",
    "projview(\n",
    "    m_scaled,\n",
    "    title=\"WMAP colormap\",\n",
    "    cmap=\"wmap\",\n",
    "    rlabel=r\"A$_{\\mathrm{ex. 4}}$\",\n",
    "    llabel=r\"$I$\",\n",
    "    unit=r\"$\\mu$K\",\n",
    "    fontname=\"serif\",\n",
    "    min=-100,\n",
    "    max=100,\n",
    "    sub=122,\n",
    ");\n",
    "plt.tight_layout();"
   ]
  }
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