stroke-linejoin

stroke-linejoin 屬性是一個表示屬性，它定義了路徑被描邊時在拐角處使用的形狀。

注意：作為表示屬性，stroke-linejoin 可以用作 CSS 屬性。有關詳細資訊，請參閱 stroke-linejoin。

您可以將此屬性與以下 SVG 元素一起使用

示例

html,
body,
svg {
  height: 100%;
}

html

<svg viewBox="0 0 18 12" xmlns="http://www.w3.org/2000/svg">
  <!--
  Upper left path:
  Effect of the "miter" value
  -->
  <path
    d="M1,5 a2,2 0,0,0 2,-3 a3,3 0 0 1 2,3.5"
    stroke="black"
    fill="none"
    stroke-linejoin="miter" />

  <!--
  Center path:
  Effect of the "round" value
  -->
  <path
    d="M7,5 a2,2 0,0,0 2,-3 a3,3 0 0 1 2,3.5"
    stroke="black"
    fill="none"
    stroke-linejoin="round" />

  <!--
  Upper right path:
  Effect of the "bevel" value
  -->
  <path
    d="M13,5 a2,2 0,0,0 2,-3 a3,3 0 0 1 2,3.5"
    stroke="black"
    fill="none"
    stroke-linejoin="bevel" />

  <!--
  Bottom left path:
  Effect of the "miter-clip" value
  with fallback to "miter" if not supported.
  -->
  <path
    d="M3,11 a2,2 0,0,0 2,-3 a3,3 0 0 1 2,3.5"
    stroke="black"
    fill="none"
    stroke-linejoin="miter-clip" />

  <!--
  Bottom right path:
  Effect of the "arcs" value
  with fallback to "miter" if not supported.
  -->
  <path
    d="M9,11 a2,2 0,0,0 2,-3 a3,3 0 0 1 2,3.5"
    stroke="black"
    fill="none"
    stroke-linejoin="arcs" />

  <!--
  the following pink lines highlight the
  position of the path for each stroke
  -->
  <g id="highlight">
    <path
      d="M1,5 a2,2 0,0,0 2,-3 a3,3 0 0 1 2,3.5"
      stroke="pink"
      fill="none"
      stroke-width="0.025" />
    <circle cx="1" cy="5" r="0.05" fill="pink" />
    <circle cx="3" cy="2" r="0.05" fill="pink" />
    <circle cx="5" cy="5.5" r="0.05" fill="pink" />
  </g>
  <use href="#highlight" x="6" />
  <use href="#highlight" x="12" />
  <use href="#highlight" x="2" y="6" />
  <use href="#highlight" x="8" y="6" />
</svg>

使用環境

值	`arcs` \| `bevel` \|`miter` \| `miter-clip` \| `round`
預設值	`miter`
可動畫	離散

arcs

注意：arcs 值是在 SVG2 中引入的，目前還沒有得到廣泛支援，有關詳細資訊，請參閱下面的瀏覽器相容性。

arcs 值表示將使用圓弧拐角來連線路徑段。圓弧形狀透過在連線點處用與連線點處外邊緣具有相同曲率的圓弧擴充套件描邊的外邊緣來形成。

html,
body,
svg {
  height: 100%;
}

html

<svg viewBox="0 0 6 6" xmlns="http://www.w3.org/2000/svg">
  <!-- Effect of the "arcs" value -->
  <path
    d="M1,5 a2,2 0,0,0 2,-3 a3,3 0 0 1 2,3"
    stroke="black"
    fill="none"
    stroke-linejoin="arcs" />

  <!--
  the following pink lines highlight the
  position of the path for each stroke
  -->
  <g id="p">
    <path
      d="M1,5 a2,2 0,0,0 2,-3 a3,3 0 0 1 2,3"
      stroke="pink"
      fill="none"
      stroke-width="0.025" />
    <circle cx="1" cy="5" r="0.05" fill="pink" />
    <circle cx="3" cy="2" r="0.05" fill="pink" />
    <circle cx="5" cy="5" r="0.05" fill="pink" />
  </g>
</svg>

bevel

bevel 值表示將使用斜角拐角來連線路徑段。

html,
body,
svg {
  height: 100%;
}

html

<svg viewBox="0 0 6 6" xmlns="http://www.w3.org/2000/svg">
  <!-- Effect of the "bevel" value -->
  <path
    d="M1,5 l2,-3 l2,3"
    stroke="black"
    fill="none"
    stroke-linejoin="bevel" />

  <!--
  the following pink lines highlight the
  position of the path for each stroke
  -->
  <g id="p">
    <path d="M1,5 l2,-3 l2,3" stroke="pink" fill="none" stroke-width="0.025" />
    <circle cx="1" cy="5" r="0.05" fill="pink" />
    <circle cx="3" cy="2" r="0.05" fill="pink" />
    <circle cx="5" cy="5" r="0.05" fill="pink" />
  </g>
</svg>

miter

miter 值表示將使用銳角拐角來連線路徑段。拐角是透過沿著路徑段切線的描邊外邊緣擴充套件形成的，直到它們相交。

注意：如果 stroke-miterlimit 被超過，則線連線將回退到 bevel。

html,
body,
svg {
  height: 100%;
}

html

<svg viewBox="0 -1 10 7" xmlns="http://www.w3.org/2000/svg">
  <!-- Effect of the "miter" value -->
  <path
    d="M1,5 l2,-3 l2,3"
    stroke="black"
    fill="none"
    stroke-linejoin="miter" />

  <!-- Effect of the "miter" value on a sharp angle
       where de default miter limit is exceeded -->
  <path
    d="M7,5 l0.75,-3 l0.75,3"
    stroke="black"
    fill="none"
    stroke-linejoin="miter" />

  <!-- the following red dotted line show where
       the miter value falls back to the bevel value -->
  <path
    d="M0,0 h10"
    stroke="red"
    stroke-dasharray="0.05"
    stroke-width="0.025" />

  <!-- the following pink lines highlight the position of the path for each stroke -->
  <g>
    <path d="M1,5 l2,-3 l2,3" stroke="pink" fill="none" stroke-width="0.025" />
    <circle cx="1" cy="5" r="0.05" fill="pink" />
    <circle cx="3" cy="2" r="0.05" fill="pink" />
    <circle cx="5" cy="5" r="0.05" fill="pink" />

    <path
      d="M7,5 l0.75,-3 l0.75,3"
      stroke="pink"
      fill="none"
      stroke-width="0.025" />
    <circle cx="7" cy="5" r="0.05" fill="pink" />
    <circle cx="7.75" cy="2" r="0.05" fill="pink" />
    <circle cx="8.5" cy="5" r="0.05" fill="pink" />
  </g>
</svg>

miter-clip

注意：miter-clip 值是在 SVG2 中引入的，目前還沒有得到廣泛支援，有關詳細資訊，請參閱下面的瀏覽器相容性。

miter-clip 值表示將使用銳角拐角來連線路徑段。拐角是透過沿著路徑段切線的描邊外邊緣擴充套件形成的，直到它們相交。

如果 stroke-miterlimit 被超過，則斜接在距離路徑段交點 stroke-miterlimit 值乘以描邊寬度的一半處被剪裁。這在非常尖銳的連線或動畫情況下提供比 miter 更好的渲染。

html,
body,
svg {
  height: 100%;
}

html

<svg viewBox="0 -1 10 7" xmlns="http://www.w3.org/2000/svg">
  <!-- Effect of the "miter-clip" value -->
  <path
    d="M1,5 l2,-3 l2,3"
    stroke="black"
    fill="none"
    stroke-linejoin="miter-clip" />

  <!-- Effect of the "miter-clip" value on a sharp angle
       where de default miter limit is exceeded -->
  <path
    d="M7,5 l0.75,-3 l0.75,3"
    stroke="black"
    fill="none"
    stroke-linejoin="miter-clip" />

  <!-- the following red dotted line show where the clip should happen -->
  <path
    d="M0,0 h10"
    stroke="red"
    stroke-dasharray="0.05"
    stroke-width="0.025" />

  <!-- the following pink lines highlight the position of the path for each stroke -->
  <g>
    <path d="M1,5 l2,-3 l2,3" stroke="pink" fill="none" stroke-width="0.025" />
    <circle cx="1" cy="5" r="0.05" fill="pink" />
    <circle cx="3" cy="2" r="0.05" fill="pink" />
    <circle cx="5" cy="5" r="0.05" fill="pink" />

    <path
      d="M7,5 l0.75,-3 l0.75,3"
      stroke="pink"
      fill="none"
      stroke-width="0.025" />
    <circle cx="7" cy="5" r="0.05" fill="pink" />
    <circle cx="7.75" cy="2" r="0.05" fill="pink" />
    <circle cx="8.5" cy="5" r="0.05" fill="pink" />
  </g>
</svg>

round

round 值表示將使用圓角來連線路徑段。

html,
body,
svg {
  height: 100%;
}

html

<svg viewBox="0 0 6 6" xmlns="http://www.w3.org/2000/svg">
  <!-- Effect of the "round" value -->
  <path
    d="M1,5 l2,-3 l2,3"
    stroke="black"
    fill="none"
    stroke-linejoin="round" />

  <!--
  the following pink lines highlight the
  position of the path for each stroke
  -->
  <g id="p">
    <path d="M1,5 l2,-3 l2,3" stroke="pink" fill="none" stroke-width="0.025" />
    <circle cx="1" cy="5" r="0.05" fill="pink" />
    <circle cx="3" cy="2" r="0.05" fill="pink" />
    <circle cx="5" cy="5" r="0.05" fill="pink" />
  </g>
</svg>

規範

規範
可縮放向量圖形 (SVG) 2 # LineJoin

瀏覽器相容性

BCD 表格僅在瀏覽器中載入