{
  "id": 113925,
  "title": "Euler Angles",
  "url": "/competitions/pku-autonomous-driving/discussion/113925",
  "author_name": "",
  "post_date": "2019-10-23T04:00:54.216285900Z",
  "votes": 9,
  "comment_count": 3,
  "views": 0,
  "content": "<p><em><strong>Euler Angles</strong></em>\nThe Euler angles are three angles introduced by Leonhard Euler to describe the orientation of a rigid body with respect to a fixed coordinate system.</p>\n\n<p>reference:</p>\n\n<p><a href=\"https://www.youtube.com/watch?time_continue=74&amp;v=C5bRTJ9UGgA\">https://www.youtube.com/watch?time_continue=74&amp;v=C5bRTJ9UGgA</a></p>\n\n<p><a href=\"https://en.wikipedia.org/wiki/Euler_angles\">https://en.wikipedia.org/wiki/Euler_angles</a></p>",
  "messages": [
    {
      "id": "655443",
      "postDate": "10/23/2019 04:00:54",
      "content": "<p><em><strong>Euler Angles</strong></em>\nThe Euler angles are three angles introduced by Leonhard Euler to describe the orientation of a rigid body with respect to a fixed coordinate system.</p>\n\n<p>reference:</p>\n\n<p><a href=\"https://www.youtube.com/watch?time_continue=74&amp;v=C5bRTJ9UGgA\">https://www.youtube.com/watch?time_continue=74&amp;v=C5bRTJ9UGgA</a></p>\n\n<p><a href=\"https://en.wikipedia.org/wiki/Euler_angles\">https://en.wikipedia.org/wiki/Euler_angles</a></p>",
      "rawMarkdown": "***Euler Angles***\nThe Euler angles are three angles introduced by Leonhard Euler to describe the orientation of a rigid body with respect to a fixed coordinate system.\n\nreference:\n\nhttps://www.youtube.com/watch?time_continue=74&amp;v=C5bRTJ9UGgA\n\nhttps://en.wikipedia.org/wiki/Euler_angles",
      "votes": null
    },
    {
      "id": "655573",
      "postDate": "10/23/2019 07:53:11",
      "content": "<p><a href=\"/grapestone5321\">@grapestone5321</a>  Good to see a fellow \"Flying Car Student\" here! 😄 </p>",
      "rawMarkdown": "grapestone5321  Good to see a fellow \"Flying Car Student\" here! 😄",
      "votes": null
    },
    {
      "id": "655577",
      "postDate": "10/23/2019 08:00:24",
      "content": "<p>You too !</p>",
      "rawMarkdown": "You too !",
      "votes": null
    },
    {
      "id": "656676",
      "postDate": "10/24/2019 14:18:47",
      "content": "<p>Nice! Thanks for sharing <a href=\"/grapestone5321\">@grapestone5321</a> !</p>",
      "rawMarkdown": "Nice! Thanks for sharing @grapestone5321 !",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 655573,
      "author_name": "init27",
      "author_url": "",
      "post_date": "10/23/2019 07:53:11",
      "content": "<p><a href=\"/grapestone5321\">@grapestone5321</a>  Good to see a fellow \"Flying Car Student\" here! 😄 </p>",
      "votes": null,
      "replies": [
        {
          "id": 655577,
          "author_name": "grapestone5321",
          "author_url": "",
          "post_date": "10/23/2019 08:00:24",
          "content": "<p>You too !</p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 656676,
      "author_name": "phunghieu",
      "author_url": "",
      "post_date": "10/24/2019 14:18:47",
      "content": "<p>Nice! Thanks for sharing <a href=\"/grapestone5321\">@grapestone5321</a> !</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "655443": "***Euler Angles***\nThe Euler angles are three angles introduced by Leonhard Euler to describe the orientation of a rigid body with respect to a fixed coordinate system.\n\nreference:\n\nhttps://www.youtube.com/watch?time_continue=74&amp;v=C5bRTJ9UGgA\n\nhttps://en.wikipedia.org/wiki/Euler_angles",
    "655573": "grapestone5321  Good to see a fellow \"Flying Car Student\" here! 😄",
    "655577": "You too !",
    "656676": "Nice! Thanks for sharing @grapestone5321 !"
  },
  "source": "meta"
}