{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Car Example"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "%matplotlib widget"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{\n",
       "'vehicle': {\n",
       "    'wheels': {\n",
       "        'wheel1': {\n",
       "            'wheel': {\n",
       "                'arc': \"181 (x,y) coords\",},\n",
       "            'cross': {\n",
       "                'cross1': {\n",
       "                    'line': \"2 (x,y) coords\",},\n",
       "                'cross2': {\n",
       "                    'line': \"2 (x,y) coords\",},},},\n",
       "        'wheel2': {\n",
       "            'wheel': {\n",
       "                'arc': \"181 (x,y) coords\",},\n",
       "            'cross': {\n",
       "                'cross1': {\n",
       "                    'line': \"2 (x,y) coords\",},\n",
       "                'cross2': {\n",
       "                    'line': \"2 (x,y) coords\",},},},},\n",
       "    'body': {\n",
       "        'under': {\n",
       "            'rectangle': \"5 (x,y) coords\",},\n",
       "        'over': {\n",
       "            'rectangle': \"5 (x,y) coords\",},},},\n",
       "'ground': {\n",
       "    'wall': \"4 (x,y) coords fillcolor='white' fillpattern='/'\",},}"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from pysketcher import *\n",
    "\n",
    "R = 1    # radius of wheel\n",
    "L = 4    # distance between wheels\n",
    "H = 2    # height of vehicle body\n",
    "w_1 = 5  # position of front wheel\n",
    "\n",
    "xmax = w_1 + 2*L + 3*R\n",
    "drawing_tool.set_coordinate_system(xmin=0, xmax=xmax,\n",
    "                                   ymin=-1, ymax=2*R + 3*H,\n",
    "                                   axis=False)\n",
    "\n",
    "wheel1 = Composition({\n",
    "    'wheel': Circle(center=(w_1, R), radius=R),\n",
    "    'cross': Composition({'cross1': Line((w_1,0),   (w_1,2*R)),\n",
    "                          'cross2': Line((w_1-R,R), (w_1+R,R))})})\n",
    "wheel2 = wheel1.copy()\n",
    "wheel2.translate((L,0))\n",
    "\n",
    "under = Rectangle(lower_left_corner=(w_1-2*R, 2*R),\n",
    "                  width=2*R + L + 2*R, height=H)\n",
    "over  = Rectangle(lower_left_corner=(w_1, 2*R + H),\n",
    "                  width=2.5*R, height=1.25*H)\n",
    "\n",
    "wheels = Composition({'wheel1': wheel1, 'wheel2': wheel2})\n",
    "body = Composition({'under': under, 'over': over})\n",
    "\n",
    "vehicle = Composition({'wheels': wheels, 'body': body})\n",
    "ground = Wall(x=[R, xmax], y=[0, 0], thickness=-0.3*R)\n",
    "\n",
    "fig = Composition({'vehicle': vehicle, 'ground': ground})\n",
    "fig.draw()  # send all figures to plotting backend"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/vnd.jupyter.widget-view+json": {
       "model_id": "ae74d9c0c99348429e9caee48e646a0b",
       "version_major": 2,
       "version_minor": 0
      },
      "text/plain": [
       "Canvas(toolbar=Toolbar(toolitems=[('Home', 'Reset original view', 'home', 'home'), ('Back', 'Back to previous …"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "drawing_tool.mpl.gcf().canvas"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.8.5"
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 "nbformat": 4,
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}