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Martin Hope
Alexandr_TT
Asked: 2024-12-13 15:27:45 +0000 UTC
  • 17

祝贺比赛获胜者 Stanislav Volodarskiy！

他的解决方案很有趣、原创且非常专业。
他们100%满足比赛条件。

除了他的解决方案之外，还发布了几个非常可靠的答案。给他们打高分是公平的，但一场比赛只能产生一名获胜者。
因此，我呼吁潜在的赞助商：请分享你的萝卜并重新启动，这里有一个新的比赛。

我有一张军刀凸轮机构的照片。

在此输入图像描述

有*.gif 机构动画

在此输入图像描述

我为凸轮机构创建了一个 svg 代码：

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="400" height="400" viewBox="0 0 500 500">
                                                                          
     <!-- Шарнир -->
<path fill="grey" stroke="black" stroke-width="3" d="M344.3 197.6a49.6 49.6 0 0 1 34.4 13A57 57 0 0 1 396 251a54 54 0 0 1-17.4 36.8c-9 8.2-22 13.1-34.2 13a54.4 54.4 0 0 1-36.8-15.4A51.4 51.4 0 0 1 294 251a55.4 55.4 0 0 1 13.7-37.6 53.7 53.7 0 0 1 36.6-16z"/>
            <!-- Вертикальный стержень -->
<path fill="grey" stroke="black" stroke-width="3" d="M387.3 13.1h30v440.5h-30z"/>
                <!-- Ось кулачка -->
<path  fill="#626262" stroke="black" stroke-width="2" d="M344.3 223.5c8.9 0 18 5.5 23.7 12.3 3.4 4.1 4.9 10 4.5 15.3-.4 6.7-3.2 13.9-8.2 18.4a27 27 0 0 1-20 6.5c-7.1-.8-13.8-5.4-18.6-10.6a24.4 24.4 0 0 1-1-31.8c4.7-5.7 12.2-10.1 19.6-10z"/>

                 <!-- Кулачок -->
<path fill="grey" stroke="black" stroke-width="3" d="M41.3 153c32.7 0 78.5 3.3 117.6 7 35 3.2 69.9 6.8 104.3 13.2 16.8 3.1 33.3 7.7 49.8 12.2 13 3.5 43.8 11.3 38.7 11.6-20 1.4-39.1 7.2-48.7 22.3-20.3 31.8-.9 54.9-7 41.8-5.4-11.8-18.1-18-29-24.3-13.4-7.9-28.7-11.9-43.5-16.5-19-5.9-38.9-9.2-58.2-14.3-21.5-5.5-42.7-12-64.1-17.4-14-3.5-26.3-5.5-41.9-9.6a25 25 0 0 1-13.2-10.6c-3-4.4-10.1-15.3-4.8-15.3z"/>
             <!-- Цилиндр -->
<path fill="black" d="M377.5 54.3c3.8-.7 50.6-.4 50.6-.4l9.3 10.5v88.8h-66.6V64.4Z"/>
            <!-- Линия фаски -->
<path  stroke="white" d="m370.8 64 66.6.4"/>
              <!-- Верхний рычаг -->
<path fill="grey" stroke="black" stroke-width="3" d="M21.2 153c-3.1 0 1.1-6.2 2.6-9 1.4-2.4 3-5.7 5.9-6.3a17587 17587 0 0 1 341-65.7v81H21.3z"/>

</svg>

如何根据给定的.gif 文件创建凸轮机构的动画？

更新


解决问题时出现问题时提供额外数据。
希望这有帮助。

Inkscape 源代码，创建了该机制的静态 SVG 文件。
SVG 画布大小 500x500 px
可以通过在矢量编辑器中运行 inkscape 源代码来获取部件的尺寸 下面的代码

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
   xmlns:dc="http://purl.org/dc/elements/1.1/"
   xmlns:cc="http://creativecommons.org/ns#"
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:svg="http://www.w3.org/2000/svg"
   xmlns="http://www.w3.org/2000/svg"
   xmlns:xlink="http://www.w3.org/1999/xlink"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
   width="500"
   height="500"
   viewBox="0 0 500 500"
   version="1.1"
   id="svg4"
   sodipodi:docname="Заготовка-ink2.svg"
   inkscape:version="0.92.3 (2405546, 2018-03-11)">
  <metadata
     id="metadata10">
    <rdf:RDF>
      <cc:Work
         rdf:about="">
        <dc:format>image/svg+xml</dc:format>
        <dc:type
           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
        <dc:title></dc:title>
      </cc:Work>
    </rdf:RDF>
  </metadata>
  <defs
     id="defs8" />
  <sodipodi:namedview
     pagecolor="#ffffff"
     bordercolor="#666666"
     borderopacity="1"
     objecttolerance="10"
     gridtolerance="10"
     guidetolerance="10"
     inkscape:pageopacity="0"
     inkscape:pageshadow="2"
     inkscape:window-width="1440"
     inkscape:window-height="837"
     id="namedview6"
     showgrid="false"
     inkscape:zoom="0.944"
     inkscape:cx="295.12041"
     inkscape:cy="242.72973"
     inkscape:window-x="-8"
     inkscape:window-y="-8"
     inkscape:window-maximized="1"
     inkscape:current-layer="svg4"
     showguides="true"
     inkscape:guide-bbox="true">
    <sodipodi:guide
       position="436.69836,486.88497"
       orientation="0,1"
       id="guide4520"
       inkscape:locked="false" />
    <sodipodi:guide
       position="387.26081,395.5004"
       orientation="1,0"
       id="guide4522"
       inkscape:locked="false" />
    <sodipodi:guide
       position="417.22296,388.75892"
       orientation="1,0"
       id="guide4524"
       inkscape:locked="false" />
    <sodipodi:guide
       position="448.68322,46.441335"
       orientation="0,1"
       id="guide4526"
       inkscape:locked="false" />
    <sodipodi:guide
       position="370.78163,381.26838"
       orientation="1,0"
       id="guide4532"
       inkscape:locked="false" />
    <sodipodi:guide
       position="437.44742,370.03257"
       orientation="1,0"
       id="guide4534"
       inkscape:locked="false" />
    <sodipodi:guide
       position="489.88118,471.15484"
       orientation="0,1"
       id="guide4536"
       inkscape:locked="false" />
    <sodipodi:guide
       position="489.13213,416.47391"
       orientation="0,1"
       id="guide4538"
       inkscape:locked="false" />
    <sodipodi:guide
       position="411.97959,435.94931"
       orientation="0,1"
       id="guide4546"
       inkscape:locked="false" />
    <sodipodi:guide
       position="288.66525,346.92797"
       orientation="0,1"
       id="guide4550"
       inkscape:locked="false" />
    <sodipodi:guide
       position="344.27966,512.1822"
       orientation="1,0"
       id="guide4554"
       inkscape:locked="false" />
    <sodipodi:guide
       position="370.78163,248.94068"
       orientation="0,1"
       id="guide4556"
       inkscape:locked="false" />
  </sodipodi:namedview>
  <image
     
  <path
     style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
     d="m 387.26081,13.11503 h 29.96215 v 440.44364 h -17.97729 -11.98486 z"
     id="path4528"
     inkscape:connector-curvature="0" />
  <path
     style="fill:none;stroke:#0000f7;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"
     d="m 387.26081,13.11503 h 29.96215 v 440.44364 h -29.96215 z"
     id="path4530"
     inkscape:connector-curvature="0" />
  <path
     style="fill:none;stroke:#e50000;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"
     d="m 377.52311,54.312992 c 3.74527,-0.749054 50.56113,-0.374527 50.56113,-0.374527 l 9.36318,10.486753 V 153.18809 H 370.78163 V 64.425218 Z"
     id="path4544"
     inkscape:connector-curvature="0" />
  <path
     style="fill:none;stroke:#570400;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;stroke-miterlimit:4;stroke-dasharray:none"
     d="m 370.78163,64.05069 66.66579,0.374528"
     id="path4548"
     inkscape:connector-curvature="0" />
  <path
     style="fill:none;stroke:#008800;stroke-width:3;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
     d="m 21.186441,153.07203 c -3.12854,0 1.110117,-6.27995 2.648305,-9.00423 1.413084,-2.50271 3.015439,-5.75628 5.826271,-6.35594 C 135.51425,115.12916 370.78163,72.033898 370.78163,72.033898 v 81.038132 c 0,0 -212.74111,0 -349.595189,0 z"
     id="path4552"
     inkscape:connector-curvature="0"
     sodipodi:nodetypes="sasccs" />
  <path
     style="fill:none;stroke:#0000e7;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
     d="m 344.27966,223.51695 c 8.90907,0.0198 18.05228,5.44187 23.72125,12.31462 3.36808,4.08327 4.85373,9.94633 4.50212,15.22775 -0.44642,6.70562 -3.23009,13.91363 -8.22867,18.40572 -5.21172,4.68364 -13.02457,7.20658 -19.9947,6.48835 -7.07962,-0.72951 -13.76582,-5.31323 -18.53813,-10.59322 -3.49791,-3.87002 -6.03275,-9.09431 -6.35594,-14.30085 -0.37718,-6.07621 1.39653,-12.80421 5.29661,-17.47881 4.70441,-5.63868 12.25403,-10.07987 19.59746,-10.06356 z"
     id="path4558"
     inkscape:connector-curvature="0"
     sodipodi:nodetypes="aaaaaaaaa" />
  <path
     style="fill:none;stroke:#0000ed;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
     d="m 344.27966,197.56356 c 12.26035,-0.30456 25.5788,4.48545 34.42797,12.97669 10.5885,10.16022 17.51589,25.8475 17.21398,40.51907 -0.2794,13.57787 -7.48027,27.60038 -17.4599,36.81145 -8.95578,8.26607 -21.9962,13.17457 -34.18205,12.97669 -13.2941,-0.21588 -27.5112,-5.85832 -36.81144,-15.36017 -8.6229,-8.80982 -13.36567,-22.10127 -13.50636,-34.42797 -0.15236,-13.3485 4.61476,-27.89174 13.77119,-37.60593 9.11148,-9.66649 23.26688,-15.55995 36.54661,-15.88983 z"
     id="path4560"
     inkscape:connector-curvature="0"
     sodipodi:nodetypes="aaaaaaaaa" />
  <path
     style="fill:none;stroke:#00aa40;stroke-width:3;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
     d="m 41.313559,153.07203 c 32.676369,0 78.490031,3.2645 117.584751,6.8856 34.91059,3.23355 69.86925,6.85792 104.34322,13.24152 16.80002,3.11088 33.30494,7.68524 49.78813,12.18221 12.98636,3.54296 43.73855,11.29999 38.66526,11.65254 -19.95701,1.38685 -39.13749,7.18503 -48.72882,22.24576 -20.23867,31.77966 -0.83862,54.89455 -6.88559,41.84322 -5.46997,-11.80596 -18.20255,-17.97596 -29.13136,-24.3644 -13.36198,-7.81076 -28.65095,-11.82981 -43.4322,-16.4195 -19.0979,-5.93004 -38.9043,-9.28613 -58.26271,-14.30084 -21.4357,-5.55283 -42.60775,-12.10487 -64.08899,-17.47882 -13.877535,-3.47173 -26.30999,-5.43823 -41.843216,-9.5339 -5.465675,-1.44114 -10.056956,-5.92321 -13.241525,-10.59322 -3.020329,-4.42916 -10.127906,-15.36017 -4.76695,-15.36017 z"
     id="path4562"
     inkscape:connector-curvature="0"
     sodipodi:nodetypes="saaasssaaaasas" />
</svg>

矢量编辑器的屏幕截图

在此输入图像描述

笔记：

设计凸轮旋转动画时，请注意旋转的不均匀性：大旋转角度与小角度交替！

相关主题：

  1. 曲柄机构的动画
  2. 如何制作凸轮机构的动画？

比赛将在截止日期后的最后几个小时内结束。
还有很多时间，继续，寻找解决方案！

javascript
Martin Hope
Ivan Ivanov
Asked: 2024-12-13 14:55:30 +0000 UTC
  • 6

在 Mac OS 上的 vscode 中，有一个有用的热键⌘ cmd+F2它替换了所有提及的所选变量的名称。一个缺点是它会在整个文件中执行此操作。在 paycharm 中，这种替换只能在块、函数等内部完成。 vscode中有类似的东西吗？

visual-studio-code
Martin Hope
Dato Dato
Asked: 2024-12-13 11:00:08 +0000 UTC
  • 5

有一个数据框：

   BSS Reg  BS_number BS_name        BS_address     CELL
0  NaN  IR        129  IO029  Область Иркутская  IO0291
1  NaN  IR        129  IO029  Область Иркутская  IO0292
2  NaN  IR        129  IO029  Область Иркутская  IO0293
1  NaN  IR        192  IR192  Область Иркутская  IR1921
2  NaN  IR        192  IR192  Область Иркутская  IR1922

如何找到以 IO 开头的文本片段并将其替换为 IR？我正在尝试获取下表：

   BSS Reg  BS_number BS_name        BS_address     CELL
0  NaN  IR        129  IR029  Область Иркутская  IR0291
1  NaN  IR        129  IR029  Область Иркутская  IR0292
2  NaN  IR        129  IR029  Область Иркутская  IR0293
1  NaN  IR        192  IR192  Область Иркутская  IR1921
2  NaN  IR        192  IR192  Область Иркутская  IR1922

根据情况，如果有IO，最好显示这样的表。因为IO可能不在表中。以下代码是我尝试获得这样一个表：

        '''if ces2gTable["Reg"] != ces2gTable["BS_name"].str[:2]:
            ces2gTable=ces2gTable.drop("BS_name", axis=1)
            print("TRUE")
            #ces2gTable["BS_name"] = ces2gTable["BS_name"].str.replace("IO", "IR") 
        else:
            print("FALSE")'''
        addcol=ces2gTable["BS_name"]
        ces2gTable.insert(6, "RegIO", addcol)
        ces2gTable["RegIO"] = ces2gTable["RegIO"].str[:2]
        if "IO" in ces2gTable["RegIO"]:
            print("TRUE")
        else:
            print("FALSE")
        print(ces2gTable)
        print(ces4gTable)
python
Martin Hope
Dmitry
Asked: 2024-12-13 04:03:36 +0000 UTC
  • 6

Pa是一个结构体数组，fullname是该结构体的一个元素（char数组）。为什么在这行代码中，如果立即按 ENTER 键，条件将为TRUE。按 ENTER 键（不输入其他字符）后会发生什么。我的理解是生成一个换行符并保留在输入队列中。在这种情况下get()函数是否放置空字符？该函数返回一个cin对象，如果没有设置标志，为什么它是 false？

   if(!(cin.get(pa[i].fullname, SLEN))) return i;
c++
Martin Hope
Mike
Asked: 2024-12-13 04:00:03 +0000 UTC
  • 5

我无法理解。我正在编写代码：它在日志中写道：Tinkoff 的响应：{'Success'：False，'ErrorCode'：'204'，'Message'：'无效参数。'，'详细信息'：'无效令牌。检查 TerminalKey/SecretKey 对。'}。 SecretKey 是什么意思？我附上了终端和密码，但汀卡发誓。告诉

async def create_tinkoff_payment(amount: int, order_id: str, description: str, success_url: str) -> str:
"""
Создание платежа через Tinkoff API.
"""
async with httpx.AsyncClient() as client:
    payload = {
        "TerminalKey": TINKOFF_TERMINAL_KEY,
        "Amount": amount * 100,  # Tinkoff ожидает сумму в копейках
        "OrderId": order_id,
        "Description": description,
        "SuccessURL": success_url,
    }
    payload["Token"] = generate_tinkoff_token(payload)

    # Логирование отправляемого запроса
    print("Отправляемый запрос:", payload)

    response = await client.post(TINKOFF_API_URL, json=payload)
    response_data = response.json()

    # Логирование ответа от Tinkoff
    print("Ответ от Tinkoff:", response_data)

    if response_data.get("Success"):
        return response_data["PaymentURL"]
    else:
        raise Exception(f"Ошибка при создании платежа: {response_data.get('Message')}")


def generate_tinkoff_token(payload: dict) -> str:
    """
    Генерация токена для Tinkoff API.
    """
    token_str = (
        f"{TINKOFF_SECRET_KEY}{payload['Amount']}{payload['OrderId']}"
        f"{payload['Description']}{payload['TerminalKey']}"
    )
    return hashlib.sha256(token_str.encode("utf-8")).hexdigest()


@router.message(Command("start"))
async def start_handler(message: types.Message):
    try:
        order_id = f"{message.from_user.id}_{message.message_id}"
        payment_url = await create_tinkoff_payment(
            amount=100,  # Сумма в рублях
            order_id=order_id,
            description="Оплата тестового товара",
            success_url="https://securepay.tinkoff.ru/html/payForm/success.html",  # Ссылка на успешную оплату
    )

    keyboard = InlineKeyboardMarkup(
        inline_keyboard=[
            [InlineKeyboardButton(text="Оплатить", url=payment_url)]
        ]
    )
    await message.answer("Оплатите, пожалуйста:", reply_markup=keyboard)
except Exception as e:
    await message.answer(f"Ошибка: {str(e)}")
python
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