内容表

• 范例
• 用法注意事项
• 规范
• 浏览器兼容性

shape-rendering

1. SVG 元素

   1. A
      1. <a>
      2. <altGlyph>
      3. <altGlyphDef>
      4. <altGlyphItem>
      5. <animate>
      6. <animateColor>
      7. <animateMotion>
      8. <animateTransform>
   2. B-C
      1. <circle>
      2. <clipPath>
      3. <color-profile>
      4. <cursor>
   3. D
      1. <defs>
      2. <desc>
   4. E
      1. <ellipse>
   5. F
      1. <feBlend>
      2. <feColorMatrix>
      3. <feComponentTransfer>
      4. <feComposite>
      5. <feConvolveMatrix>
      6. <feDiffuseLighting>
      7. <feDisplacementMap>
      8. <feDistantLight>
      9. <feFlood>
      10. <feFuncA>
      11. <feFuncB>
      12. <feFuncG>
      13. <feFuncR>
      14. <feGaussianBlur>
      15. <feImage>
      16. <feMerge>
      17. <feMergeNode>
      18. <feMorphology>
      19. <feOffset>
      20. <fePointLight>
      21. <feSpecularLighting>
      22. <feSpotLight>
      23. <feTile>
      24. <feTurbulence>
      25. <filter>
      26. <font>
      27. <font-face>
      28. <font-face-format>
      29. <font-face-name>
      30. <font-face-src>
      31. <font-face-uri>
      32. <foreignObject>
   6. G
      1. <g>
      2. <glyph>
      3. <glyphRef>
   7. H
      1. <hkern>
   8. I
      1. <image>
   9. J-L
      1. <line>
      2. <linearGradient>
   10. M
       1. <marker>
       2. <mask>
       3. <metadata>
       4. <missing-glyph>
       5. <mpath>
   11. N-P
       1. <path>
       2. <pattern>
       3. <polygon>
       4. <polyline>
   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
       1. <text>
       2. <textPath>
       3. <title>
       4. <tref>
       5. <tspan>
   15. U
       1. <use>
   16. V-Z
       1. <view>
       2. <vkern>

shape-rendering attribute provides hints to the renderer about what tradeoffs to make when rendering shapes like paths, circles, or rectangles.

注意： As a presentation attribute, shape-rendering can be used as a CSS property.

You can use this attribute with the following SVG elements:

• <circle>
• <ellipse>
• <line>
• <path>
• <polygon>
• <polyline>
• <rect>

范例

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

					

<svg viewBox="0 0 420 200" xmlns="http://www.w3.org/2000/svg">
  <circle cx="100" cy="100" r="100" shape-rendering="geometricPrecision"/>
  <circle cx="320" cy="100" r="100" shape-rendering="crispEdges"/>
</svg>

					

用法注意事项

值	auto | optimizeSpeed | crispEdges | geometricPrecision
默认值	auto
Animatable	discrete

auto

This value indicates that the user agent shall make appropriate tradeoffs to balance speed, crisp edges and geometric precision, but with geometric precision given more importance than speed and crisp edges.

optimizeSpeed

This value indicates that the user agent shall emphasize rendering speed over geometric precision and crisp edges. This option will sometimes cause the user agent to turn off shape anti-aliasing.

crispEdges

This value indicates that the user agent shall attempt to emphasize the contrast between clean edges of artwork over rendering speed and geometric precision. To achieve crisp edges, the user agent might turn off anti-aliasing for all lines and curves or possibly just for straight lines which are close to vertical or horizontal. Also, the user agent might adjust line positions and line widths to align edges with device pixels.

geometricPrecision

Indicates that the user agent shall emphasize geometric precision over speed and crisp edges.

规范

规范	状态	注释
Scalable Vector Graphics (SVG) 2 The definition of 'shape-rendering' in that specification.	候选推荐	无变化
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'shape-rendering' in that specification.	推荐	初始定义

浏览器兼容性

BCD tables only load in the browser

Found a problem with this page?

• Edit on GitHub
• Source on GitHub
• Report a problem with this content on GitHub
• Want to fix the problem yourself? See our Contribution guide .

最后修改： Sep 23, 2021 , 由 MDN 贡献者