color-picker.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Chose the colormap interactively"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import matplotlib.pyplot as plt\n",
    "import numpy as np\n",
    "from pathlib import Path\n",
    "\n",
    "options = sorted(Path(\"data\").glob(\"*/*.pickle\"))\n",
    "\n",
    "cmaps = [\n",
    "    (\n",
    "        \"Perceptually Uniform Sequential\",\n",
    "        [\"viridis\", \"plasma\", \"inferno\", \"magma\", \"cividis\"],\n",
    "    ),\n",
    "    (\n",
    "        \"Sequential\",\n",
    "        [\n",
    "            \"Greys\",\n",
    "            \"Purples\",\n",
    "            \"Blues\",\n",
    "            \"Greens\",\n",
    "            \"Oranges\",\n",
    "            \"Reds\",\n",
    "            \"YlOrBr\",\n",
    "            \"YlOrRd\",\n",
    "            \"OrRd\",\n",
    "            \"PuRd\",\n",
    "            \"RdPu\",\n",
    "            \"BuPu\",\n",
    "            \"GnBu\",\n",
    "            \"PuBu\",\n",
    "            \"YlGnBu\",\n",
    "            \"PuBuGn\",\n",
    "            \"BuGn\",\n",
    "            \"YlGn\",\n",
    "        ],\n",
    "    ),\n",
    "    (\n",
    "        \"Sequential (2)\",\n",
    "        [\n",
    "            \"binary\",\n",
    "            \"gist_yarg\",\n",
    "            \"gist_gray\",\n",
    "            \"gray\",\n",
    "            \"bone\",\n",
    "            \"pink\",\n",
    "            \"spring\",\n",
    "            \"summer\",\n",
    "            \"autumn\",\n",
    "            \"winter\",\n",
    "            \"cool\",\n",
    "            \"Wistia\",\n",
    "            \"hot\",\n",
    "            \"afmhot\",\n",
    "            \"gist_heat\",\n",
    "            \"copper\",\n",
    "        ],\n",
    "    ),\n",
    "    (\n",
    "        \"Diverging\",\n",
    "        [\n",
    "            \"PiYG\",\n",
    "            \"PRGn\",\n",
    "            \"BrBG\",\n",
    "            \"PuOr\",\n",
    "            \"RdGy\",\n",
    "            \"RdBu\",\n",
    "            \"RdYlBu\",\n",
    "            \"RdYlGn\",\n",
    "            \"Spectral\",\n",
    "            \"coolwarm\",\n",
    "            \"bwr\",\n",
    "            \"seismic\",\n",
    "        ],\n",
    "    ),\n",
    "    (\"Cyclic\", [\"twilight\", \"twilight_shifted\", \"hsv\"]),\n",
    "    (\n",
    "        \"Qualitative\",\n",
    "        [\n",
    "            \"Pastel1\",\n",
    "            \"Pastel2\",\n",
    "            \"Paired\",\n",
    "            \"Accent\",\n",
    "            \"Dark2\",\n",
    "            \"Set1\",\n",
    "            \"Set2\",\n",
    "            \"Set3\",\n",
    "            \"tab10\",\n",
    "            \"tab20\",\n",
    "            \"tab20b\",\n",
    "            \"tab20c\",\n",
    "        ],\n",
    "    ),\n",
    "    (\n",
    "        \"Miscellaneous\",\n",
    "        [\n",
    "            \"flag\",\n",
    "            \"prism\",\n",
    "            \"ocean\",\n",
    "            \"gist_earth\",\n",
    "            \"terrain\",\n",
    "            \"gist_stern\",\n",
    "            \"gnuplot\",\n",
    "            \"gnuplot2\",\n",
    "            \"CMRmap\",\n",
    "            \"cubehelix\",\n",
    "            \"brg\",\n",
    "            \"gist_rainbow\",\n",
    "            \"rainbow\",\n",
    "            \"jet\",\n",
    "            \"nipy_spectral\",\n",
    "            \"gist_ncar\",\n",
    "        ],\n",
    "    ),\n",
    "]\n",
    "\n",
    "all_cmaps = [f\"{k}: {cm}\" for k, _cmaps in cmaps for cm in _cmaps]\n",
    "\n",
    "\n",
    "def plot_color_gradients(cmap_category, cmap_list):\n",
    "    # Create figure and adjust figure height to number of colormaps\n",
    "\n",
    "    nrows = len(cmap_list)\n",
    "    figh = 0.35 + 0.15 + (nrows + (nrows - 1) * 0.1) * 0.22\n",
    "    fig, axes = plt.subplots(nrows=nrows, figsize=(6.4, figh))\n",
    "    fig.subplots_adjust(top=1 - 0.35 / figh, bottom=0.15 / figh, left=0.2, right=0.99)\n",
    "\n",
    "    axes[0].set_title(cmap_category + \" colormaps\", fontsize=14)\n",
    "\n",
    "    gradient = np.linspace(0, 1, 256)\n",
    "    gradient = np.vstack((gradient, gradient))\n",
    "    for ax, name in zip(axes, cmap_list):\n",
    "        ax.imshow(gradient, aspect=\"auto\", cmap=plt.get_cmap(name))\n",
    "        ax.text(\n",
    "            -0.01,\n",
    "            0.5,\n",
    "            name,\n",
    "            va=\"center\",\n",
    "            ha=\"right\",\n",
    "            fontsize=10,\n",
    "            transform=ax.transAxes,\n",
    "        )\n",
    "\n",
    "    # Turn off *all* ticks & spines, not just the ones with colormaps.\n",
    "    for ax in axes:\n",
    "        ax.set_axis_off()\n",
    "\n",
    "\n",
    "for cmap_category, cmap_list in cmaps:\n",
    "    plot_color_gradients(cmap_category, cmap_list)\n",
    "\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import adaptive\n",
    "import matplotlib.colors as colors\n",
    "import matplotlib.pyplot as plt\n",
    "import numpy as np\n",
    "from ipywidgets import FloatSlider, IntSlider, interact\n",
    "\n",
    "from thesis_cover import load_learner, get_cmap\n",
    "\n",
    "x_size, y_size = xy_size = (14.13, 9.84)\n",
    "\n",
    "\n",
    "\n",
    "def plot(fname, cmap, min_clip=0.0, max_clip=1.0, exp=1.0, invert=False):\n",
    "    learner = load_learner(fname)\n",
    "    xs, ys, zs = data = learner.interpolated_on_grid(1000)\n",
    "    cmap = cmap.split(\": \")[-1] + (\"_r\" if invert else \"\")\n",
    "\n",
    "    zs = get_cmap(cmap, min_clip, max_clip, exp)(zs)\n",
    "    fig, ax = plt.subplots(figsize=xy_size)\n",
    "    im = ax.imshow(\n",
    "        np.rot90(zs),\n",
    "        extent=(-0.5 * x_size, 0.5 * x_size, -0.5 * y_size, 0.5 * y_size),\n",
    "        zorder=3,\n",
    "    )\n",
    "    plt.show()\n",
    "\n",
    "\n",
    "interact(\n",
    "    plot,\n",
    "    fname=options,\n",
    "    cmap=all_cmaps,\n",
    "    min_clip=FloatSlider(min=0, max=1, step=0.05),\n",
    "    max_clip=FloatSlider(value=1, min=0, max=1, step=0.05),\n",
    "    exp=FloatSlider(value=1, min=0.1, max=3, step=0.05),\n",
    ")"
   ]
  }
 ],
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