VPython_test.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div id=\"glowscript\" class=\"glowscript\"></div>"
      ],
      "text/plain": [
       "<IPython.core.display.HTML object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "if (typeof Jupyter !== \"undefined\") { window.__context = { glowscript_container: $(\"#glowscript\").removeAttr(\"id\")};}else{ element.textContent = ' ';}"
      ],
      "text/plain": [
       "<IPython.core.display.Javascript object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "from vpython import *\n",
    "scene = canvas() # This is needed in Jupyter notebook and lab to make programs easily rerunnable\n",
    "scene.width = scene.height = 600\n",
    "scene.background = color.white\n",
    "scene.range = 1.3\n",
    "N = 150\n",
    "scene.title = 'A {}-element points object with random radii and colors'.format(N)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "ename": "KeyboardInterrupt",
     "evalue": "",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mKeyboardInterrupt\u001b[0m                         Traceback (most recent call last)",
      "\u001b[1;32m<ipython-input-5-3398b16a873d>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[0;32m     25\u001b[0m \u001b[0mc\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mpoints\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mpos\u001b[0m\u001b[1;33m=\u001b[0m\u001b[0mp\u001b[0m\u001b[1;33m,\u001b[0m \u001b[0msize_units\u001b[0m\u001b[1;33m=\u001b[0m\u001b[1;34m'world'\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m     26\u001b[0m \u001b[1;32mwhile\u001b[0m \u001b[1;32mTrue\u001b[0m\u001b[1;33m:\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m---> 27\u001b[1;33m     \u001b[0mrate\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;36m60\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m     28\u001b[0m     \u001b[1;32mif\u001b[0m \u001b[0mrun\u001b[0m\u001b[1;33m:\u001b[0m \u001b[1;31m# Currently there isn't a way to rotate a points object, so rotate scene.forward:\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m     29\u001b[0m         \u001b[0mscene\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mforward\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mscene\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mforward\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mrotate\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mangle\u001b[0m\u001b[1;33m=\u001b[0m\u001b[1;33m-\u001b[0m\u001b[1;36m0.005\u001b[0m\u001b[1;33m,\u001b[0m \u001b[0maxis\u001b[0m\u001b[1;33m=\u001b[0m\u001b[0mvec\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;36m0\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;36m1\u001b[0m\u001b[1;33m,\u001b[0m\u001b[1;36m0\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
      "\u001b[1;32mc:\\datasc~1\\advanc~1\\course~1\\av_cw\\av\\lib\\site-packages\\vpython\\rate_control.py\u001b[0m in \u001b[0;36m__call__\u001b[1;34m(self, N)\u001b[0m\n\u001b[0;32m    264\u001b[0m         \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mrval\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mN\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    265\u001b[0m         \u001b[1;32mif\u001b[0m \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mrval\u001b[0m \u001b[1;33m<\u001b[0m \u001b[1;36m1\u001b[0m\u001b[1;33m:\u001b[0m \u001b[1;32mraise\u001b[0m \u001b[0mValueError\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;34m\"rate value must be greater than or equal to 1\"\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m--> 266\u001b[1;33m         \u001b[0msuper\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0m_RateKeeper2\u001b[0m\u001b[1;33m,\u001b[0m \u001b[0mself\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0m__call__\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mrval\u001b[0m\u001b[1;33m)\u001b[0m \u001b[1;31m## calls __call__ in rate_control.py\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m    267\u001b[0m \u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    268\u001b[0m \u001b[1;33m\u001b[0m\u001b[0m\n",
      "\u001b[1;32mc:\\datasc~1\\advanc~1\\course~1\\av_cw\\av\\lib\\site-packages\\vpython\\rate_control.py\u001b[0m in \u001b[0;36m__call__\u001b[1;34m(self, maxRate)\u001b[0m\n\u001b[0;32m    218\u001b[0m             \u001b[0mdt\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mlastSleep\u001b[0m \u001b[1;33m+\u001b[0m \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mcalls\u001b[0m\u001b[1;33m*\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0muserTime\u001b[0m \u001b[1;33m+\u001b[0m \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mcallTime\u001b[0m \u001b[1;33m+\u001b[0m \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mdelay\u001b[0m\u001b[1;33m)\u001b[0m \u001b[1;33m+\u001b[0m\u001b[0;31m \u001b[0m\u001b[0;31m\\\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    219\u001b[0m                  \u001b[0mrenders\u001b[0m\u001b[1;33m*\u001b[0m\u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mrenderTime\u001b[0m \u001b[1;33m+\u001b[0m \u001b[0msleeps\u001b[0m\u001b[1;33m*\u001b[0m\u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0minteractionPeriod\u001b[0m \u001b[1;33m-\u001b[0m \u001b[0m_clock\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m--> 220\u001b[1;33m             \u001b[0m_sleep\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mdt\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m    221\u001b[0m             \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mlastSleep\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0m_clock\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m    222\u001b[0m             \u001b[0mself\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mcalls\u001b[0m \u001b[1;33m=\u001b[0m \u001b[1;36m0\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
      "\u001b[1;32mc:\\datasc~1\\advanc~1\\course~1\\av_cw\\av\\lib\\site-packages\\vpython\\rate_control.py\u001b[0m in \u001b[0;36m_sleep\u001b[1;34m(dt)\u001b[0m\n\u001b[0;32m     60\u001b[0m         \u001b[0mdtsleep\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0mnticks\u001b[0m\u001b[1;33m*\u001b[0m\u001b[0m_tick\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m     61\u001b[0m         \u001b[0mt\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0m_clock\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m---> 62\u001b[1;33m         \u001b[0mtime\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0msleep\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mdtsleep\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m\u001b[0;32m     63\u001b[0m         \u001b[0mt\u001b[0m \u001b[1;33m=\u001b[0m \u001b[0m_clock\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m-\u001b[0m\u001b[0mt\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m     64\u001b[0m         \u001b[0mdt\u001b[0m \u001b[1;33m-=\u001b[0m \u001b[0mt\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n",
      "\u001b[1;31mKeyboardInterrupt\u001b[0m: "
     ]
    }
   ],
   "source": [
    "run = False\n",
    "def Runbutton(b):\n",
    "    global run\n",
    "    if b.text == 'Pause':\n",
    "        run = False\n",
    "        b.text = 'Run'\n",
    "    else:\n",
    "        run = True\n",
    "        b.text = 'Pause'\n",
    "\n",
    "button(text='Run', bind=Runbutton)\n",
    "scene.append_to_caption(\"\"\"<br>Right button drag or Ctrl-drag to rotate \"camera\" to view scene.\n",
    "Middle button or Alt-drag to drag up or down to zoom in or out.\n",
    "  On a two-button mouse, middle is left + right.\n",
    "Touch screen: pinch/extend to zoom, swipe or two-finger rotate.\"\"\")\n",
    "\n",
    "p = []\n",
    "last = vec(0,0,0)\n",
    "for i in range(N):\n",
    "    next = last+0.1*vec.random()\n",
    "    while mag(next) > 1: # if next is outside the sphere, try another random value\n",
    "        next = last+0.1*vec.random()\n",
    "    p.append({'pos':next, 'radius':0.002+0.04*random(), 'color':(vec(1,1,1)+vec.random())/2})\n",
    "    last = next\n",
    "c = points(pos=p, size_units='world')\n",
    "while True:\n",
    "    rate(60)\n",
    "    if run: # Currently there isn't a way to rotate a points object, so rotate scene.forward:\n",
    "        scene.forward = scene.forward.rotate(angle=-0.005, axis=vec(0,1,0))"
   ]
  },
  {
   "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": "3.7.0"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}