y1

SVG 元素
1. A
2. B-C
3. D
  1. <defs>
  2. <desc>
4. E
  1. <ellipse>
5. F
6. G
7. H
  1. <hkern>
8. I
  1. <image>
9. J-L
  1. <line>
  2. <linearGradient>
10. M
11. N-P
12. Q-R
  1. <radialGradient>
  2. <rect>
13. S
  1. <script>
  2. <set>
  3. <stop>
  4. <style>
  5. <svg>
  6. <switch>
  7. <symbol>
14. T
15. U
  1. <use>
16. V-Z
  1. <view>
  2. <vkern>

y1 attribute is used to specify the first y-coordinate for drawing an SVG element that requires more than one coordinate. Elements that only need one coordinate use the y attribute instead.

You can use this attribute with the following SVG elements:

范例

html,body,svg { height:100% }

<svg viewBox="0 0 10 10" xmlns="http://www.w3.org/2000/svg">
  <line x1="1" x2="9" y1="1" y2="5" stroke="red" />
  <line x1="1" x2="9" y1="5" y2="5" stroke="green" />
  <line x1="1" x2="9" y1="9" y2="5" stroke="blue" />
</svg>

line

For <line> , y1 defines the y coordinate of the starting point of the line.

值	<length> \| <percentage>
默认值	`0`
Animatable	Yes

html,body,svg { height:100% }

<svg viewBox="0 0 10 10" xmlns="http://www.w3.org/2000/svg">
  <line x1="1" x2="9" y1="1" y2="5" stroke="red"   />
  <line x1="1" x2="9" y1="5" y2="5" stroke="green" />
  <line x1="1" x2="9" y1="9" y2="5" stroke="blue"  />
</svg>

For <linearGradient> , y1 defines the y coordinate of the starting point of the gradient vector used to map the gradient stop values. The exact behavior of this attribute is influenced by the gradientUnits 属性

值	<length> \| <percentage>
默认值	`0%`
Animatable	Yes

html,body,svg { height:100% }

<svg viewBox="0 0 20 10" xmlns="http://www.w3.org/2000/svg">
  <!--
  By default the gradient vector start at the top left
  corner of the bounding box of the shape it is applied to.
  -->
  <linearGradient y1="0%" id="g0">
    <stop offset="5%"  stop-color="black" />
    <stop offset="50%" stop-color="red"   />
    <stop offset="95%" stop-color="black" />
  </linearGradient>
  <rect x="1"  y="1" width="8" height="8" fill="url(#g0)" />
  <!--
  Here the gradient vector start at the bottom left
  corner of the bounding box of the shape it is applied to.
  -->
  <linearGradient y1="100%" id="g1">
    <stop offset="5%"  stop-color="black" />
    <stop offset="50%" stop-color="red"   />
    <stop offset="95%" stop-color="black" />
  </linearGradient>
  <rect x="11" y="1" width="8" height="8" fill="url(#g1)" />
</svg>

规范

规范	状态	注释
Scalable Vector Graphics (SVG) 2 The definition of 'y1' in that specification.	候选推荐	Definition for `<line>`
Scalable Vector Graphics (SVG) 2 The definition of 'y1' in that specification.	候选推荐	Definition for `<linearGradient>`
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'y1' in that specification.	推荐	Initial definition for `<line>`
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'y1' in that specification.	推荐	Initial definition for `<linearGradient>`

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最后修改： Sep 23, 2021 , 由 MDN 贡献者