week03/_prep_notebook_week03.ipynb

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 "cells": [
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   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [],
   "source": [
    "%matplotlib inline"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "import string\n",
    "import matplotlib.font_manager\n",
    "from matplotlib.ft2font import FT2Font, LOAD_FORCE_AUTOHINT, \\\n",
    "    LOAD_NO_HINTING, LOAD_DEFAULT, LOAD_NO_AUTOHINT\n",
    "import matplotlib.pyplot as plt"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 54,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "A 237 256\n",
      "A 475 512\n",
      "A 950 1088\n",
      "A 1900 2112\n",
      "A 3799 4160\n",
      "A 7600 8352\n",
      "O 240 256\n",
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      "O 1920 2176\n",
      "O 3840 4275\n",
      "O 7680 8640\n",
      "T 218 256\n",
      "T 436 512\n",
      "T 880 1088\n",
      "T 1752 2112\n",
      "T 3512 4128\n",
      "T 7016 8352\n",
      "J 87 320\n",
      "J 174 640\n",
      "J 356 1408\n",
      "J 708 2688\n",
      "J 1412 5312\n",
      "J 2824 10624\n",
      "X 221 256\n",
      "X 444 512\n",
      "X 888 1088\n",
      "X 1775 2112\n",
      "X 3549 4160\n",
      "X 7100 8320\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "<Figure size 432x288 with 0 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "text/plain": [
       "<Figure size 1440x220 with 0 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "text/plain": [
       "<Figure size 1440x220 with 0 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "text/plain": [
       "<Figure size 1440x220 with 0 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "text/plain": [
       "<Figure size 1440x220 with 0 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "text/plain": [
       "<Figure size 1440x220 with 0 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "font_name = \"DejaVu Sans\"\n",
    "\n",
    "characters = string.printable\n",
    "characters = \"AOTJX\"\n",
    "\n",
    "dpi = 100\n",
    "\n",
    "chars = [ord(_) for _ in characters]\n",
    "\n",
    "font_sizes = (4, 8, 16, 32, 64, 128)\n",
    "\n",
    "for i, char_code in enumerate(chars):\n",
    "\n",
    "    font_fn = matplotlib.font_manager.findfont(font_name)\n",
    "    font = matplotlib.font_manager.get_font(font_fn)\n",
    "\n",
    "    plt.clf()\n",
    "    fig = plt.figure(dpi = 200, figsize=(len(font_sizes) * 1.2, 1.1))\n",
    "    ax = fig.add_subplot(111)\n",
    "    max_x = 0.0\n",
    "    for j, font_size in enumerate(font_sizes):\n",
    "        font.clear()\n",
    "        font.set_size(font_size, dpi)\n",
    "        font.set_text(chr(char_code), flags = LOAD_FORCE_AUTOHINT)\n",
    "        font.draw_glyphs_to_bitmap(antialiased = True)\n",
    "        glyph = font.load_char(char_code)\n",
    "        x0, y0, x1, y1 = glyph.bbox\n",
    "        dx = x1 - x0\n",
    "        dy = y1 - y0\n",
    "        print(chr(char_code), dx, dy)\n",
    "        bitmap = 1.0 - font.get_image().astype(\">f4\")/255.\n",
    "        extent = [j * 1.5, j * 1.5 + 1, 0, dy/dx]\n",
    "        ax.imshow(bitmap, extent = extent, cmap = \"gray\")\n",
    "        max_x = max(max_x, extent[1])\n",
    "    plt.xlim(-0.1, max_x + 0.1)\n",
    "    plt.ylim(-0.1, 1.3)\n",
    "    plt.xticks(())\n",
    "    plt.yticks(())\n",
    "    plt.savefig(\"images/font_%s.png\" % chr(char_code));\n",
    "    plt.clf()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<Figure size 1200x800 with 0 Axes>"
      ]
     },
     "execution_count": 28,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "text/plain": [
       "<Figure size 1200x800 with 0 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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