Basic_Example.ipynb

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  {
   "cell_type": "markdown",
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   "source": [
    "# Basic example\n",
    "\n",
    "* Simple Python function\n",
    "* Shoule be displayed offline"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "from pythreejs import *\n",
    "import numpy as np"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
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   "source": [
    "nx, ny = (20, 20)\n",
    "xmax=1\n",
    "x = np.linspace(-xmax, xmax, nx)\n",
    "y = np.linspace(-xmax, xmax, ny)\n",
    "xx, yy = np.meshgrid(x, y)\n",
    "z = xx ** 2 - yy ** 2\n",
    "#z[6,1] = float('nan')\n",
    "surf_g = SurfaceGeometry(z=list(z[::-1].flat), \n",
    "                         width=2 * xmax,\n",
    "                         height=2 * xmax,\n",
    "                         width_segments=nx - 1,\n",
    "                         height_segments=ny - 1)\n",
    "\n",
    "surf = Mesh(geometry=surf_g, material=LambertMaterial(map=height_texture(z[::-1], 'YlGnBu_r')))\n",
    "surfgrid = SurfaceGrid(geometry=surf_g, material=LineBasicMaterial(color='black'))\n",
    "scene = Scene(children=[surf, surfgrid, AmbientLight(color='#777777')])\n",
    "c = PerspectiveCamera(position=[0, 3, 3], up=[0, 0, 1], \n",
    "                      children=[DirectionalLight(color='white', position=[3, 5, 1], intensity=0.6)])\n",
    "\n",
    "Renderer(camera=c, scene = scene, controls=[OrbitControls(controlling=c)])"
   ]
  }
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