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  {
   "cell_type": "code",
   "execution_count": null,
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   "source": [
    "from k3d import K3D\n",
    "\n",
    "view_matrix = (\n",
    "    0.9,  0.1, -0.4, 0.0,\n",
    "    0.0,  0.9,  0.4, 0.0,\n",
    "    0.4, -0.4,  0.9, 0.0,\n",
    "    0.0,  0.0,  0.0, 1.0\n",
    ")\n",
    "\n",
    "positions = (\n",
    "    -10.0, -15.0, 0.0,\n",
    "    -10.0,   5.0, 0.0,\n",
    "     10.0,   5.0, 0.0,\n",
    "    -10.0, -15.0, 0.0,\n",
    "     10.0, -15.0, 0.0,\n",
    "    -10.0,   5.0, 0.0,\n",
    "      0.0,  15.0, 0.0,\n",
    "     10.0,   5.0, 0.0,\n",
    "     10.0, -15.0, 0.0\n",
    ")\n",
    "\n",
    "lines = K3D.line(positions, view_matrix=view_matrix, color=0xff0000, width=2.5) + K3D.line((0, 0, 0, 5, 10, 15))\n",
    "\n",
    "plot = K3D(antialias=True)\n",
    "plot += lines\n",
    "plot.display()"
   ]
  }
 ],
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