{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div id=\"scene0\"><div id=\"glowscript\" class=\"glowscript\"></div></div>"
      ],
      "text/plain": [
       "<IPython.core.display.HTML object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "require.undef(\"nbextensions/glow.1.0.min\");"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "require.undef(\"nbextensions/jquery-ui.custom.min\");"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "require.undef(\"nbextensions/glow.1.1.min\");"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "require.undef(\"nbextensions/glow.1.2.min\");"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "require.undef(\"nbextensions/glow.2.0.min\");"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "require.undef(\"nbextensions/glowcomm\");"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "require.undef(\"nbextensions/ivglowcomm\");"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "require([\"nbextensions/ivglowcomm\"], function(){console.log(\"ivisual glowcomm loaded\");})"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "# pip install ivisual\n",
    "from ivisual import *"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "AU = 1.496e8 # km\n",
    "AU = 1e-2 * AU # so that we can see\n",
    "earth_radius = 6371 # km\n",
    "def orbit(bodies, radii, years, earth_years=10, _rate=24):    \n",
    "    for t in np.linspace(0, earth_years, earth_years * 365):\n",
    "        rate(_rate)\n",
    "        for body, radius, year in zip(bodies, radii, years):\n",
    "            x = radius * np.cos(2*np.pi * t / year)\n",
    "            y = radius * np.sin(2*np.pi * t / year)\n",
    "            body.pos = (x, y, 0)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div id=\"scene0\"><div id=\"glowscript\" class=\"glowscript\"></div></div>"
      ],
      "text/plain": [
       "<IPython.core.display.HTML object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "window.__context = { glowscript_container: $(\"#glowscript\").removeAttr(\"id\")}"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "text/html": [
       "<div id=\"glowscript2\" ><div id=\"glowscript\" class=\"glowscript\"></div></div>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "canvas(width=900, height=600)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 82,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "sun = sphere(radius = 109 * earth_radius, color = color.red)\n",
    "earth = sphere(radius = earth_radius, color = color.blue, pos = (AU, 0, 0), make_trail=True)\n",
    "jupyter = sphere(radius = 10.5 * earth_radius, color = color.orange, pos = (5.2 * AU, 0, 0), make_trail=True)\n",
    "saturn = sphere(radius = 9.14 * earth_radius, color = color.cyan, pos = (9 * AU, 0, 0), make_trail=True)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 83,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "orbit(bodies=[earth, jupyter, saturn], radii=[AU, 5.2 * AU, 9 * AU], years=[1, 11.86, 29.5], earth_years=30, _rate=48)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
 ],
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  "kernelspec": {
   "display_name": "Python [conda env:scipy]",
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   "name": "conda-env-scipy-py"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
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   "file_extension": ".py",
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   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
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