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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"/><title>Pict: Functional Pictures</title><link rel="stylesheet" type="text/css" href="../scribble.css" title="default"/><link rel="stylesheet" type="text/css" href="../racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-style.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../doc-site.css" title="default"/><script type="text/javascript" src="../scribble-common.js"></script><script type="text/javascript" src="../manual-racket.js"></script><script type="text/javascript" src="../doc-site.js"></script><script type="text/javascript" src="../local-redirect/local-redirect.js"></script><script type="text/javascript" src="../local-redirect/local-user-redirect.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--></head><body id="doc-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist tocviewlisttopspace"><div class="tocviewtitle"><table cellspacing="0" cellpadding="0"><tr><td style="width: 1em;"><a href="javascript:void(0);" title="Expand/Collapse" class="tocviewtoggle" onclick="TocviewToggle(this,&quot;tocview_0&quot;);">&#9660;</a></td><td></td><td><a href="" class="tocviewselflink" data-pltdoc="x">Pict:<span class="mywbr"> &nbsp;</span> Functional Pictures</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1&nbsp;</td><td><a href="Pict_Datatype.html" class="tocviewlink" data-pltdoc="x">Pict Datatype</a></td></tr><tr><td align="right">2&nbsp;</td><td><a href="Basic_Pict_Constructors.html" class="tocviewlink" data-pltdoc="x">Basic Pict Constructors</a></td></tr><tr><td align="right">3&nbsp;</td><td><a href="Pict_Combiners.html" class="tocviewlink" data-pltdoc="x">Pict Combiners</a></td></tr><tr><td align="right">4&nbsp;</td><td><a href="Pict_Drawing_Adjusters.html" class="tocviewlink" data-pltdoc="x">Pict Drawing Adjusters</a></td></tr><tr><td align="right">5&nbsp;</td><td><a href="Bounding_Box_Adjusters.html" class="tocviewlink" data-pltdoc="x">Bounding Box Adjusters</a></td></tr><tr><td align="right">6&nbsp;</td><td><a href="Pict_Finders.html" class="tocviewlink" data-pltdoc="x">Pict Finders</a></td></tr><tr><td align="right">7&nbsp;</td><td><a href="More_Pict_Constructors.html" class="tocviewlink" data-pltdoc="x">More Pict Constructors</a></td></tr><tr><td align="right">8&nbsp;</td><td><a href="Animation_Helpers.html" class="tocviewlink" data-pltdoc="x">Animation Helpers</a></td></tr><tr><td align="right">9&nbsp;</td><td><a href="Tree_Layout.html" class="tocviewlink" data-pltdoc="x">Tree Layout</a></td></tr><tr><td align="right">10&nbsp;</td><td><a href="Miscellaneous.html" class="tocviewlink" data-pltdoc="x">Miscellaneous</a></td></tr><tr><td align="right">11&nbsp;</td><td><a href="Rendering.html" class="tocviewlink" data-pltdoc="x">Rendering</a></td></tr><tr><td align="right">12&nbsp;</td><td><a href="Conversion_to_Picts.html" class="tocviewlink" data-pltdoc="x">Conversion to Picts</a></td></tr></table></div></div></div><div class="tocsub"><div class="tocsubtitle">On this page:</div><table class="tocsublist" cellspacing="0"><tr><td><span class="tocsublinknumber"></span><a href="#%28part._top%29" class="tocsubseclink" data-pltdoc="x">Pict:<span class="mywbr"> &nbsp;</span> Functional Pictures</a></td></tr></table></div></div><div class="maincolumn"><div class="main"><div class="versionbox"><span class="version">6.1</span></div><div class="navsettop"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, &quot;6.1&quot;, &quot;../&quot;);" onfocus="this.style.color=&quot;black&quot;; this.style.textAlign=&quot;left&quot;; if (this.value == &quot;...search manuals...&quot;) this.value=&quot;&quot;;" onblur="if (this.value.match(/^ *$/)) { this.style.color=&quot;#888&quot;; this.style.textAlign=&quot;center&quot;; this.value=&quot;...search manuals...&quot;; }"/></form>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">top</a></span><span class="navright">&nbsp;&nbsp;<span class="nonavigation">&larr; prev</span>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">up</a>&nbsp;&nbsp;<a href="Pict_Datatype.html" title="forward to &quot;1 Pict Datatype&quot;" data-pltdoc="x">next &rarr;</a></span>&nbsp;</div><h2 x-source-module="(lib &quot;pict/scribblings/pict.scrbl&quot;)" x-part-tag="&quot;top&quot;"><a name="(part._top)"></a><a name="(part._.Pict__.Functional_.Pictures)"></a><a name="(mod-path._pict)"></a>Pict: Functional Pictures</h2><p><div class="SIntrapara"><table cellspacing="0" cellpadding="0" class="defmodule"><tr><td align="left"><span class="hspace">&nbsp;</span><span class="RktPn">(</span><span class="RktSym"><a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=reference&amp;rel=require.html%23%2528form._%2528%2528lib._racket%252Fprivate%252Fbase..rkt%2529._require%2529%2529&amp;version=6.1" class="RktStxLink Sq" data-pltdoc="x">require</a></span><span class="stt"> </span><a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">pict</span></a><span class="RktPn">)</span></td><td align="right"><span class="RpackageSpec"><span class="Smaller">&nbsp;package:</span> <span class="stt">pict-lib</span></span></td></tr></table></div><div class="SIntrapara"> The
<a href="" class="RktModLink" data-pltdoc="x"><span class="RktSym">pict</span></a> library is one of the standard Racket
functional picture libraries (the other being <a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?tag=%28mod-path._.%272htdp%2Fimage.%27%29&amp;version=6.1" class="RktModLink Sq" data-pltdoc="x"><span class="RktSym">2htdp/image</span></a>).
This library was original designed for use with
<a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=slideshow&amp;rel=index.html&amp;version=6.1" class="Sq" data-pltdoc="x">Slideshow</a>,
and is re-provided by the <a href="http://download.racket-lang.org/docs/6.1/html/local-redirect/index.html?doc=slideshow&amp;rel=index.html&amp;version=6.1" class="RktModLink Sq" data-pltdoc="x"><span class="RktSym">slideshow</span></a> language.</div></p><table cellspacing="0" cellpadding="0"><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Pict_Datatype.html" class="toptoclink" data-pltdoc="x">1<span class="hspace">&nbsp;</span>Pict Datatype</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Basic_Pict_Constructors.html" class="toptoclink" data-pltdoc="x">2<span class="hspace">&nbsp;</span>Basic Pict Constructors</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Pict_Combiners.html" class="toptoclink" data-pltdoc="x">3<span class="hspace">&nbsp;</span>Pict Combiners</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Pict_Drawing_Adjusters.html" class="toptoclink" data-pltdoc="x">4<span class="hspace">&nbsp;</span>Pict Drawing Adjusters</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Bounding_Box_Adjusters.html" class="toptoclink" data-pltdoc="x">5<span class="hspace">&nbsp;</span>Bounding Box Adjusters</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Pict_Finders.html" class="toptoclink" data-pltdoc="x">6<span class="hspace">&nbsp;</span>Pict Finders</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="More_Pict_Constructors.html" class="toptoclink" data-pltdoc="x">7<span class="hspace">&nbsp;</span>More Pict Constructors</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="More_Pict_Constructors.html#%28part._.Dingbats%29" class="toclink" data-pltdoc="x">7.1<span class="hspace">&nbsp;</span>Dingbats</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="More_Pict_Constructors.html#%28part._.Balloon_.Annotations%29" class="toclink" data-pltdoc="x">7.2<span class="hspace">&nbsp;</span>Balloon Annotations</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="More_Pict_Constructors.html#%28part._.Face%29" class="toclink" data-pltdoc="x">7.3<span class="hspace">&nbsp;</span>Face</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="More_Pict_Constructors.html#%28part._.Flash%29" class="toclink" data-pltdoc="x">7.4<span class="hspace">&nbsp;</span>Flash</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="More_Pict_Constructors.html#%28part._.Typesetting_.Racket_.Code%29" class="toclink" data-pltdoc="x">7.5<span class="hspace">&nbsp;</span>Typesetting Racket Code</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Animation_Helpers.html" class="toptoclink" data-pltdoc="x">8<span class="hspace">&nbsp;</span>Animation Helpers</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Animation_Helpers.html#%28part._.Pict_.Interoplations%29" class="toclink" data-pltdoc="x">8.1<span class="hspace">&nbsp;</span>Pict Interoplations</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Animation_Helpers.html#%28part._.Merging_.Animations%29" class="toclink" data-pltdoc="x">8.2<span class="hspace">&nbsp;</span>Merging Animations</a></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Animation_Helpers.html#%28part._.Stretching_and_.Squashing_.Time%29" class="toclink" data-pltdoc="x">8.3<span class="hspace">&nbsp;</span>Stretching and Squashing Time</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Tree_Layout.html" class="toptoclink" data-pltdoc="x">9<span class="hspace">&nbsp;</span>Tree Layout</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Miscellaneous.html" class="toptoclink" data-pltdoc="x">10<span class="hspace">&nbsp;</span>Miscellaneous</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Rendering.html" class="toptoclink" data-pltdoc="x">11<span class="hspace">&nbsp;</span>Rendering</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace">&nbsp;&nbsp;&nbsp;&nbsp;</span><a href="Conversion_to_Picts.html" class="toptoclink" data-pltdoc="x">12<span class="hspace">&nbsp;</span>Conversion to Picts</a></p></td></tr></table><div class="navsetbottom"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, &quot;6.1&quot;, &quot;../&quot;);" onfocus="this.style.color=&quot;black&quot;; this.style.textAlign=&quot;left&quot;; if (this.value == &quot;...search manuals...&quot;) this.value=&quot;&quot;;" onblur="if (this.value.match(/^ *$/)) { this.style.color=&quot;#888&quot;; this.style.textAlign=&quot;center&quot;; this.value=&quot;...search manuals...&quot;; }"/></form>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">top</a></span><span class="navright">&nbsp;&nbsp;<span class="nonavigation">&larr; prev</span>&nbsp;&nbsp;<a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot(&quot;6.1&quot;);">up</a>&nbsp;&nbsp;<a href="Pict_Datatype.html" title="forward to &quot;1 Pict Datatype&quot;" data-pltdoc="x">next &rarr;</a></span>&nbsp;</div></div></div><div id="contextindicator">&nbsp;</div></body></html>