stroke-dasharray - SVG: Scalable Vector Graphics 编辑

The stroke-dasharray attribute is a presentation attribute defining the pattern of dashes and gaps used to paint the outline of the shape;

Note: As a presentation attribute, stroke-dasharray can be used as a CSS property.

As a presentation attribute, it can be applied to any element, but it only has effect on the following twelve elements:

• <altGlyph>
• <circle>
• <ellipse>
• <path>
• <line>
• <polygon>
• <polyline>
• <rect>
• <text>
• <textPath>
• <tref>
• <tspan>

html,body,svg { height:100% }

<svg viewBox="0 0 30 10" xmlns="http://www.w3.org/2000/svg">
  <!-- No dashes nor gaps -->
  <line x1="0" y1="1" x2="30" y2="1" stroke="black" />

  <!-- Dashes and gaps of the same size -->
  <line x1="0" y1="3" x2="30" y2="3" stroke="black"
          stroke-dasharray="4" />

  <!-- Dashes and gaps of different sizes -->
  <line x1="0" y1="5" x2="30" y2="5" stroke="black"
          stroke-dasharray="4 1" />

  <!-- Dashes and gaps of various sizes with an odd number of values -->
  <line x1="0" y1="7" x2="30" y2="7" stroke="black"
          stroke-dasharray="4 1 2" />

  <!-- Dashes and gaps of various sizes with an even number of values -->
  <line x1="0" y1="9" x2="30" y2="9" stroke="black"
          stroke-dasharray="4 1 2 3" />
</svg>

Usage notes

<dasharray>

A list of comma and/or white space separated <length>s and <percentage>s that specify the lengths of alternating dashes and gaps.

If an odd number of values is provided, then the list of values is repeated to yield an even number of values. Thus, 5,3,2 is equivalent to 5,3,2,5,3,2.

Browser compatibility

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Specifications