<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <!-- header_tag --> <html lang="en"> <head> <title>stem-interface - LilyPond program-reference</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="description" content="LilyPond program-reference"> <meta name="generator" content="makeinfo 4.11"> <link title="Top" rel="start" href="index.es.html#Top"> <link rel="up" href="Graphical-Object-Interfaces.es.html#Graphical-Object-Interfaces" title="Graphical Object Interfaces"> <link rel="prev" href="stanza_002dnumber_002dinterface.es.html#stanza_002dnumber_002dinterface" title="stanza-number-interface"> <link rel="next" href="stem_002dtremolo_002dinterface.es.html#stem_002dtremolo_002dinterface" title="stem-tremolo-interface"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } hr { border:0; height:1; color: #000000; background-color: #000000; } /* hr { border: none; height: 1px; color: #666666; background-color: #666666; } body { border-left: 1px solid #666666; border-right: 1px solid #666666; color: #332d28; margin-right: auto; margin-left: auto; width: 60em; list-style-type: square; font-family: Arial,Helvetica,sans-serif; padding-right: 1em; padding-left: 1em; } a { border-bottom: 1px dashed #344242; text-decoration: none; color: #344242; } a:link { text-decoration: none; } a:visited { border-bottom: 1px dashed #666666; color: #666666; } a:active { border-bottom: 1px solid #00cccc; color: #00cccc; } a:hover { border-bottom: 1px solid #1d7b85; color: #1d7b85; } blockquote { border: 1px solid #cccccc; padding: 3px; width: 40em; } .node { border-left: 1px solid #666666; margin: -0.5em 0px 1em; padding: 2px 1px 0px; font-style: italic; } .node a { border: none; text-decoration: underline; font-style: normal; font-weight: bold; } .verbatim { font-family: "Courier New",Courier,monospace; } .unnumberedsubsubsec { font-size: large; color: #1d7b85; } .subsubheading { font-size: large; color: #3b220d; } .contents { border: 1px dashed #339999; margin: 3px 2em; list-style-type: square; padding-right: 1em; width: 40em; background-color: #fcfff9; } .contents a { border-bottom: 1px dashed #423d34; text-decoration: none; color: #423d34; } .contents a:visited { border-bottom: 1px dashed #666666; color: #666666; } .contents a:active { border-bottom: 1px solid #f0d86d; color: #f0d86d; } .contents a:hover { border-bottom: 1px solid #3b220d; color: #3b220d; } .menu { border-left: 1px dashed #339999; margin: 3px 2em 1em; list-style-type: square; padding-left: 1.4em; width: 40em; } .unnumbered { } h2 { font-size: x-large; color: #1d7b85; } */ --></style> </head> <BODY BGCOLOR=WHITE TEXT=BLACK> <div class="node"> <p> <a name="stem-interface"></a> <a name="stem_002dinterface"></a> Next: <a rel="next" accesskey="n" href="stem_002dtremolo_002dinterface.es.html#stem_002dtremolo_002dinterface">stem-tremolo-interface</a>, Previous: <a rel="previous" accesskey="p" href="stanza_002dnumber_002dinterface.es.html#stanza_002dnumber_002dinterface">stanza-number-interface</a>, Up: <a rel="up" accesskey="u" href="Graphical-Object-Interfaces.es.html#Graphical-Object-Interfaces">Graphical Object Interfaces</a> <hr> </div> <h4 class="unnumberedsubsec">stem-interface</h4> <p>The stem represents the graphical stem. In addition, it internally connects note heads, beams, and tremolos. Rests and whole notes have invisible stems. <p>The following properties may be set in the <code>details</code> list. <dl> <dt><code>beamed-lengths</code><dd>List of stem lengths given beam multiplicity. <br><dt><code>beamed-minimum-free-lengths</code><dd>List of normal minimum free stem lengths (chord to beams) given beam multiplicity. <br><dt><code>beamed-extreme-minimum-free-lengths</code><dd>List of extreme minimum free stem lengths (chord to beams) given beam multiplicity. <br><dt><code>lengths</code><dd>Default stem lengths. The list gives a length for each flag count. <br><dt><code>stem-shorten</code><dd>How much a stem in a forced direction should be shortened. The list gives an amount depending on the number of flags and beams. </dl> <h5 class="unnumberedsubsubsec">User settable properties:</h5> <blockquote> <dl> <dt><code>avoid-note-head</code> (boolean)<dd>If set, the stem of a chord does not pass through all note heads, but starts at the last note head. <br><dt><code>beaming</code> (pair)<dd>Pair of number lists. Each number list specifies which beams to make. <code>0</code> is the central beam, <code>1</code> is the next beam toward the note, etc. This information is used to determine how to connect the beaming patterns from stem to stem inside a beam. <br><dt><code>default-direction</code> (direction)<dd>Direction determined by note head positions. <br><dt><code>direction</code> (direction)<dd>If <code>side-axis</code> is <code>0</code> (or <code>#X</code>), then this property determines whether the object is placed <code>#LEFT</code>, <code>#CENTER</code> or <code>#RIGHT</code> with respect to the other object. Otherwise, it determines whether the object is placed <code>#UP</code>, <code>#CENTER</code> or <code>#DOWN</code>. Numerical values may also be used: <code>#UP</code>=<code>1</code>, <code>#DOWN</code>=<code>-1</code>, <code>#LEFT</code>=<code>-1</code>, <code>#RIGHT</code>=<code>1</code>, <code>#CENTER</code>=<code>0</code>. <br><dt><code>duration-log</code> (integer)<dd>The 2-log of the note head duration, i.e., <code>0</code> = whole note, <code>1</code> = half note, etc. <br><dt><code>flag-style</code> (symbol)<dd>A string determining what style of flag glyph is typeset on a <code>Stem</code>. Valid options include <code>()</code> and <code>mensural</code>. Additionally, <code>no-flag</code> switches off the flag. <br><dt><code>french-beaming</code> (boolean)<dd>Use French beaming style for this stem. The stem stops at the innermost beams. <br><dt><code>length</code> (dimension, in staff space)<dd>User override for the stem length of unbeamed stems. <br><dt><code>length-fraction</code> (number)<dd>Multiplier for lengths. Used for determining ledger lines and stem lengths. <br><dt><code>max-beam-connect</code> (integer)<dd>Maximum number of beams to connect to beams from this stem. Further beams are typeset as beamlets. <br><dt><code>neutral-direction</code> (direction)<dd>Which direction to take in the center of the staff. <br><dt><code>no-stem-extend</code> (boolean)<dd>If set, notes with ledger lines do not get stems extending to the middle staff line. <br><dt><code>stem-end-position</code> (number)<dd>Where does the stem end (the end is opposite to the support-head)? <br><dt><code>stemlet-length</code> (number)<dd>How long should a stem over a rest be? <br><dt><code>stroke-style</code> (string)<dd>Set to <code>"grace"</code> to turn stroke through flag on. <br><dt><code>thickness</code> (number)<dd>Line thickness, generally measured in <code>line-thickness</code>. </dl> </blockquote> <h5 class="unnumberedsubsubsec">Internal properties:</h5> <blockquote> <dl> <dt><code>beam</code> (layout object)<dd>A pointer to the beam, if applicable. <br><dt><code>details</code> (list)<dd>Alist of parameters for detailed grob behavior. <p>More information on the allowed parameters can be found by inspecting <samp><span class="file">lily/slur-scoring.cc</span></samp>, <samp><span class="file">lily/beam-quanting.cc</span></samp>, and <samp><span class="file">lily/tie-formatting-problem.cc</span></samp>. Setting <code>debug-tie-scoring</code>, <code>debug-beam-scoring</code> or <code>debug-slur-scoring</code> also provides useful clues. <br><dt><code>note-heads</code> (unknown)<dd>A list of note head grobs. <br><dt><code>positioning-done</code> (boolean)<dd>Used to signal that a positioning element did its job. This ensures that a positioning is only done once. <br><dt><code>rests</code> (unknown)<dd>A list of rest objects. <br><dt><code>stem-info</code> (pair)<dd>A cache of stem parameters. <br><dt><code>tremolo-flag</code> (layout object)<dd>The tremolo object on a stem. </dl> </blockquote> <p>This grob interface is used in the following graphical object(s): <a href="Stem.es.html#Stem">Stem</a>. <!-- footer_tag --><br><hr> <div class="node"> <p> <a name="stem_002dinterface"></a> Next: <a rel="next" accesskey="n" href="stem_002dtremolo_002dinterface.es.html#stem_002dtremolo_002dinterface">stem-tremolo-interface</a>, Previous: <a rel="previous" accesskey="p" href="stanza_002dnumber_002dinterface.es.html#stanza_002dnumber_002dinterface">stanza-number-interface</a>, Up: <a rel="up" accesskey="u" href="Graphical-Object-Interfaces.es.html#Graphical-Object-Interfaces">Graphical Object Interfaces</a> </div> <div style="background-color: #e8ffe8; padding: 2; border: #c0ffc0 1px solid;"> <p> <font size="-1"> Esta página corresponde a LilyPond-2.11.57 (rama de desarrollo). <br> <address> Informe de los fallos a través de la lista en español <a href="http://es.groups.yahoo.com/group/lilypond-es/">lilypond-es</a>, o en inglés a través de <a href="http://post.gmane.org/post.php?group=gmane.comp.gnu.lilypond.bugs">http://post.gmane.org/post.php?group=gmane.comp.gnu.lilypond.bugs</a>. </address> <br> Se agradecen las <a href="http://lilypond.org/web/devel/participating/documentation-adding">sugerencias para la documentación</a>. </font> </p> </div> </BODY></html>