SVG 中的中心路径
Center Path inside SVG
是否可以在 SVG 元素中将路径垂直居中？
这是我需要居中的路径之一：
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 144 144"><path d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/></svg>
如果你的意思是自动的，没有干预，那就不是。但是，您可以向路径添加变换以使其在 SVG 中居中。
路径的边界框是：
{
x: 8.859999656677246,
y: 40.347999572753906,
width: 125.81500244140625,
height: 94.6520004272461
}
文档的高度是144，所以y实际应该在：
(144 - 94.652) / 2 = 24.674
所以路径的y位置必须调整为：
(24.674 - 40.348) = -15.674
因此将以下属性添加到路径元素中：
transform="translate(0, -15.674)"
前后演示：
<svg xmlns="http://www.w3.org/2000/svg" width="300" height="300" viewBox="0 0 144 144" style="background-color: gray"><path d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/></svg>
<svg xmlns="http://www.w3.org/2000/svg" width="300" height="300" viewBox="0 0 144 144" style="background-color: gray">
<path transform="translate(0, -15.674)"
d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/></svg>
您可以更改 svg viewBox attribute 以使路径居中。如果 svg 中有多个路径，这将特别有用，因此您不必为每个路径添加转换。
The value of the viewBox attribute is a list of four numbers: min-x min-y width height. The numbers specify a rectangle in user space which is mapped to the bounds of the viewport established for the associated SVG element
在您的示例中 viewBox="0 15.674 144 144"，获取 y 偏移量的方式与 Pauls 回答中的相同。
前后演示：
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 144 144" width="300" height="300" style="background-color: gray">
<path d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/>
</svg>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 15.674 144 144" width="300" height="300" style="background-color: gray">
<path d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/>
</svg>
是否可以在 SVG 元素中将路径垂直居中？
这是我需要居中的路径之一：
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 144 144"><path d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/></svg>
如果你的意思是自动的，没有干预，那就不是。但是，您可以向路径添加变换以使其在 SVG 中居中。
路径的边界框是：
{
x: 8.859999656677246,
y: 40.347999572753906,
width: 125.81500244140625,
height: 94.6520004272461
}
文档的高度是144，所以y实际应该在：
(144 - 94.652) / 2 = 24.674
所以路径的y位置必须调整为：
(24.674 - 40.348) = -15.674
因此将以下属性添加到路径元素中：
transform="translate(0, -15.674)"
前后演示：
<svg xmlns="http://www.w3.org/2000/svg" width="300" height="300" viewBox="0 0 144 144" style="background-color: gray"><path d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/></svg>
<svg xmlns="http://www.w3.org/2000/svg" width="300" height="300" viewBox="0 0 144 144" style="background-color: gray">
<path transform="translate(0, -15.674)"
d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/></svg>
您可以更改 svg viewBox attribute 以使路径居中。如果 svg 中有多个路径，这将特别有用，因此您不必为每个路径添加转换。
The value of the
viewBoxattribute is a list of four numbers:min-x min-y width height. The numbers specify a rectangle in user space which is mapped to the bounds of the viewport established for the associated SVG element
在您的示例中 viewBox="0 15.674 144 144"，获取 y 偏移量的方式与 Pauls 回答中的相同。
前后演示：
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 144 144" width="300" height="300" style="background-color: gray">
<path d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/>
</svg>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 15.674 144 144" width="300" height="300" style="background-color: gray">
<path d="M127.782 40.348H15.802c-3.813 0-6.912 3.002-6.912 6.766v14.113c0 3.235 1.52 6.11 3.953 7.92h-.012s52.9 35.873 53.09 36c1.56.978 3.82 1.886 5.82 1.886 2.21 0 4.25-.71 5.9-1.886l52.54-35.675c2.69-1.78 4.494-4.81 4.494-8.246V47.194c0-3.772-3.07-6.846-6.885-6.846zm-38.05 29.864c-.066 1.966-.685 3.392-2.68 3.392H64.744c0 4.482 4.56 6.735 8.77 6.735 7.825 0 9.407-4.4 12.117-3.34 1.49.58 2.14 1.62 2.11 3.62-.08 4.48-5.292 7.864-14.94 7.864-11.637 0-19-6.573-19-17.353 0-10.31 7.63-17.88 18.184-17.88 10.465 0 17.757 7.04 17.757 16.74v.215zm-17.91-8.494c-3.434 0-6.28 2.284-6.695 5.597h13.47c-.068-3.45-3.116-5.597-6.776-5.597zm-.087 53.697c-3.328-.038-6.947-1.51-8.567-2.805L8.86 75.7v52.492c0 3.764 3.065 6.808 6.88 6.808h111.983c3.824 0 6.944-3.044 6.944-6.808v-52.49L80.53 112.61c-2.586 1.832-5.636 2.84-8.795 2.805z"/>
</svg>