{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "0",
   "metadata": {},
   "source": [
    "# Tutorial 3"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "1",
   "metadata": {},
   "outputs": [],
   "source": [
    "%load_ext autoreload\n",
    "%autoreload 2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "2",
   "metadata": {},
   "outputs": [],
   "source": [
    "from tikzpics import TikzFigure"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "3",
   "metadata": {},
   "outputs": [],
   "source": [
    "fig = TikzFigure()\n",
    "\n",
    "num_xpoints = 5\n",
    "num_ypoints = 3\n",
    "dx = 2.5\n",
    "\n",
    "origin = fig.add_node(\n",
    "    ((num_xpoints - 1) / 2) * dx,\n",
    "    -2.5,\n",
    "    label=\"origin\",\n",
    "    content=r\"\\color{white}O\",\n",
    "    shape=\"circle\",\n",
    "    fill=\"red\",\n",
    "    comment=\"Origin node\",\n",
    ")\n",
    "\n",
    "# Green nodes at the bottom\n",
    "with fig.add_loop(\"i\", range(num_xpoints), comment=\"Green nodes at the bottom\") as loop:\n",
    "    node = loop.add_node(\n",
    "        f\"{dx}*\\\\i\",\n",
    "        -5.0,\n",
    "        label=r\"xnodes\\i\",\n",
    "        content=r\"\\color{white}\\i\",\n",
    "        shape=\"circle\",\n",
    "        fill=\"green!50!black\",\n",
    "    )\n",
    "\n",
    "# Draw lines from origin to the bottom nodes\n",
    "with fig.add_loop(\n",
    "    \"i\", range(num_xpoints), comment=\"Lines from origin to green nodes\"\n",
    ") as loop:\n",
    "    loop.add_path(\n",
    "        [origin, node],\n",
    "        color=\"black\",\n",
    "        options=[\"line width=2\"],\n",
    "    )\n",
    "\n",
    "# Draw the top node grid\n",
    "with fig.add_loop(\"i\", range(num_xpoints), comment=\"Blue nodegrid\") as loop_i:\n",
    "    with loop_i.add_loop(\"j\", range(num_ypoints), comment=\"inner j-loop\") as loop_j:\n",
    "        node = loop_j.add_node(\n",
    "            f\"{dx}*\\\\i\",\n",
    "            r\"3*\\j\",\n",
    "            label=r\"xynodes\\i\\j\",\n",
    "            content=r\"\\color{white}\\i,\\j\",\n",
    "            shape=\"circle\",\n",
    "            fill=\"blue\",\n",
    "        )\n",
    "\n",
    "# Lines from origin to blue node grid\n",
    "with fig.add_loop(\n",
    "    \"i\", range(num_xpoints), comment=\"Lines from origin to blue node grid\"\n",
    ") as loop_i:\n",
    "    with loop_i.add_loop(\"j\", range(num_ypoints), comment=\"inner j-loop\") as loop_j:\n",
    "        loop_j.add_path(\n",
    "            [origin, node],\n",
    "            color=\"black\",\n",
    "            options=[\"line width=3\"],\n",
    "        )\n",
    "\n",
    "\n",
    "fig.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "4",
   "metadata": {},
   "outputs": [],
   "source": [
    "print(fig.generate_standalone())"
   ]
  }
 ],
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   "display_name": "env_tikzpics",
   "language": "python",
   "name": "python3"
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   "codemirror_mode": {
    "name": "ipython",
    "version": 3
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   "file_extension": ".py",
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   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
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