<feMorphology>

1. <feblend>
2. <fecolormatrix>
3. <fecomponenttransfer>
4. <fecomposite>
5. <feconvolvematrix>
6. <fediffuselighting>
7. <fedisplacementmap>
8. <feflood>
9. <fefunca>
10. <fefuncb>
11. <fefuncg>
12. <fefuncr>
13. <fegaussianblur>
14. <feimage>
15. <femerge>
16. <femergenode>
17. <femorphology>
18. <feoffset>
19. <fepointlight>
20. <fespecularlighting>
21. <fespotlight>
22. <fetile>
23. <feturbulence>
24. 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>

<feMorphology> SVG filter primitive is used to erode or dilate the input image. Its usefulness lies especially in fattening or thinning effects.

Usage context

属性

全局属性

• Core attributes
• Presentation attributes
• Filter primitive attributes
• class
• style

Specific attributes

• in
• operator
• radius

DOM Interface

This element implements the SVGFEMorphologyElement 接口。

范例

Filtering SVG content

SVG

<svg xmlns="http://www.w3.org/2000/svg" width="300" height="180">
  <filter id="erode">
    <feMorphology operator="erode" radius="1"/>
  </filter>
  <filter id="dilate">
    <feMorphology operator="dilate" radius="2"/>
  </filter>
  <text y="1em">Normal text</text>
  <text id="thin" y="2em">Thinned text</text>
  <text id="thick" y="3em">Fattened text</text>
</svg>

								

CSS

text {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 3em;
}
#thin {
  filter: url(#erode);
}
#thick {
  filter: url(#dilate);
}

								

Filtering HTML content

SVG

<svg xmlns="http://www.w3.org/2000/svg" width="0" height="0">
  <filter id="erode">
    <feMorphology operator="erode" radius="1"/>
  </filter>
  <filter id="dilate">
    <feMorphology operator="dilate" radius="2"/>
  </filter>
</svg>
<p>Normal text</p>
<p id="thin">Thinned text</p>
<p id="thick">Fattened text</p>

								

CSS

p {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 3em;
}
#thin {
  filter: url(#erode);
}
#thick {
  filter: url(#dilate);
}

								

规范

浏览器兼容性

BCD tables only load in the browser

另请参阅

• <filter>
• <animate>
• <set>
• <feBlend>
• <feColorMatrix>
• <feComponentTransfer>
• <feComposite>
• <feConvolveMatrix>
• <feDiffuseLighting>
• <feDisplacementMap>
• <feFlood>
• <feGaussianBlur>
• <feImage>
• <feMerge>
• <feOffset>
• <feSpecularLighting>
• <feTile>
• <feTurbulence>
• SVG tutorial: Filter effects

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最后修改： Sep 23, 2021 , 由 MDN 贡献者