dx - SVG: Scalable Vector Graphics 编辑

The dx attribute indicates a shift along the x-axis on the position of an element or its content.

Seven elements are using this attribute: <altGlyph>, <feDropShadow>, <feOffset>, <glyphRef>, <text>, <tref>, and <tspan>

html,body,svg { height:100% }

<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
  <!-- Lines materialized the position of the glyphs -->
  <line x1="0"  x2="100%" y1="50%" y2="50%" />
  <line x1="10%" x2="10%" y1="0"   y2="100%" />
  <line x1="60%" x2="60%" y1="0"   y2="100%" />

  <!-- Some reference text -->
  <text x="10%" y="50%" fill="grey">SVG</text>

  <!-- The same text with a shift along the x-axis -->
  <text dx="50%" x="10%" y="50%">SVG</text>
</svg>

line {
  stroke: red;
  stroke-width: .5px;
  stroke-dasharray: 3px;
}

altGlyph

Warning: As of SVG2 <altGlyph> is deprecated and shouldn't be used.

For <altGlyph>, if it contains a single value, dx defines a shift along the x-axis for all alternate glyph.

If there are multiple values, dx defines a shift along the x-axis for each individual glyph relative to the preceding glyph. If there are less values than glyphs, the remaining glyphs use a value of 0. If there are more values than glyphs, extra values are ignored.

feDropShadow

For <feDropShadow>, dx defines the x offset of the droped shadow. The unit used to resolve the value of the attribute is set by the primitiveUnits attribute of the <filter> element.

feOffset

For <feOffset>, dx defines the x offset of the filter input graphic. The unit used to resolve the value of the attribute is set by the primitiveUnits attribute of the <filter> element.

glyphRef

Warning: As of SVG2 <glyphRef> is deprecated and shouldn't be used.

For <glyphRef>, dx defines the x offset of the glyph, in the font metric system.

text

For <text>, if it contains a single value, dx defines a shift along the x-axis for all glyphs.

If there are multiple values, dx defines a shift along the x-axis for each individual glyph relative to the preceding glyph. If there are less values than glyphs, the remaining glyphs use a value of 0. If there are more values than glyphs, extra values are ignored.

Example

html,body,svg { height:100% }

<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
  <!-- Lines materialized the position of the glyphs -->
  <line x1="0"  x2="100%" y1="25%" y2="25%" />
  <line x1="0"  x2="100%" y1="50%" y2="50%" />
  <line x1="0"  x2="100%" y1="75%" y2="75%" />

  <line x1="10%" x2="10%" y1="0"   y2="100%" />
  <line x1="30%" x2="30%" y1="0"   y2="100%" />
  <line x1="60%" x2="60%" y1="0"   y2="100%" />

  <!-- Behaviors change based on the number
       of values in the attributes -->
  <text dx="20%"       x="10%" y="25%">SVG</text>
  <text dx="0 10%"     x="10%" y="50%">SVG</text>
  <text dx="0 10% 20%" x="10%" y="75%">SVG</text>
</svg>

line {
  stroke: red;
  stroke-width: .5px;
  stroke-dasharray: 3px;
}

tref

Warning: As of SVG2 <tref> is deprecated and shouldn't be used.

For <tref>, if it contains a single value, dx defines a shift along the x-axis for all glyphs.

If there are multiple values, dx defines a shift along the x-axis for each individual glyph relative to the preceding glyph. If there are less values than glyphes, the remaining glyphes use a value of 0. If there are more values than glyphes, extra values are ignored.

tspan

For <tspan>, if it contains a single value, dx defines a shift along the x-axis for all alternate glyph.

If there are multiple values, dx defines a shift along the x-axis for each individual glyph relative to the preceding glyph. If there are less values than glyphs, the remaining glyphs use a value of 0. If there are more values than glyphs, extra values are ignored.

Specifications