<glyph-ref> Glyph Reference for a Private Character

Once a private character has been declared using a <glyph-data> element, the character need not be defined with the same <glyph-data> element every time it is used. The character can be reused by using the <glyph-ref> element to point to the full <glyph-data> element. The pointing uses the ID/IDREF mechanism, using the @glyph-data attribute of the <glyph-ref> element to point to the @id attribute of an existing <glyph-data> element. Since the reference uses the ID/IDREF, the reference may precede or follow the element to which it is pointing.
Attributes

Base Attributes

Models and Context
May be contained in
Description
This is an EMPTY element
Content Model
<!ELEMENT  glyph-ref    EMPTY                                        >
Tagged Sample

Link to <glyph-data>

...
<p>... The map symbol indicating these conditions will be a
 <private-char name="BentArrow" 
   description="Symbol - right arrow bending up over right arrow bending down">
  <glyph-data id="pc5001" format="PBM" resolution="300" x-size="15" y-size="28">
   000000000001000
   000000000011100
   000000000111110
   000000001111111
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   111111111110000
   000000000000000
   000000000000000
   111111111110000
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   000000000001000
   000000001111111
   000000000111110
   000000000011100
   000000000001000</glyph-data>
 </private-char>. The NOAA 1993 standard definition of
 <private-char name="BentArrow" 
   description="Symbol - right arrow bending up over right arrow bending down">
  <glyph-ref glyph-data="pc5001"/>
 </private-char> will apply.</p>
...