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-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
- "http://www.w3.org/TR/html4/loose.dtd">
-<html >
-<head><title>23 Using Paths</title>
-<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
-<meta name="generator" content="TeX4ht (http://www.cis.ohio-state.edu/~gurari/TeX4ht/mn.html)">
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-<meta name="date" content="2005-11-15 18:41:00">
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- <div class="crosslinks"><p class="noindent">[<a
-href="pgfmanualse24.html" >next</a>] [<a
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- <h3 class="sectionHead"><span class="titlemark">23 </span> <a
- id="x24-23700023"></a>Using Paths</h3>
-<!--l. 10--><p class="noindent">
- <h4 class="subsectionHead"><span class="titlemark">23.1 </span> <a
- id="x24-23800023.1"></a>Overview</h4>
-<!--l. 12--><p class="noindent">Once a path has been constructed, it can be <span
-class="cmti-10">used </span>in different ways. For example, you can draw the path or fill it or
-use it for clipping.
-<!--l. 16--><p class="indent"> Numerous graph parameters influence how a path will be rendered. For example, when you draw a path,
-the line width is important as well as the dashing pattern. The options that govern how paths are
-rendered can all be set with commands starting with <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\pgfset</span></span></span>. <span
-class="cmti-10">All options that influence how a path is</span>
-<span
-class="cmti-10">rendered always influence the complete path. </span>Thus, it is not possible to draw part of a path using, say, a
-red color and drawing another part using a green color. To achieve such an effect, you must use two
-paths.
-<!--l. 25--><p class="indent"> In detail, paths can be used in the following ways:
-<!--l. 27--><p class="indent">
- <ol type="1" class="enumerate1" >
- <li class="enumerate" value="1"
-><a
- id="x24-238002x1"></a>You can <span
-class="cmti-10">stroke </span>(also known as <span
-class="cmti-10">draw</span>) a path.
- </li>
- <li class="enumerate" value="2"
-><a
- id="x24-238004x2"></a>You can <span
-class="cmti-10">fill </span>a path with a uniform color.
- </li>
- <li class="enumerate" value="3"
-><a
- id="x24-238006x3"></a>You can <span
-class="cmti-10">clip </span>subsequent renderings against the path.
- </li>
- <li class="enumerate" value="4"
-><a
- id="x24-238008x4"></a>You can <span
-class="cmti-10">shade </span>a path.
- </li>
- <li class="enumerate" value="5"
-><a
- id="x24-238010x5"></a>You can <span
-class="cmti-10">use the path as bounding box </span>for the whole picture.</li></ol>
-<!--l. 39--><p class="noindent">You can also perform any combination of the above, though it makes no sense to fill and shade a path at the same
-time.
-<!--l. 42--><p class="indent"> To perform (a combination of) the first three actions, you can use the following command:
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox252"><span
-class="cmtt-10">\pgfusepath</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">actions</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-238011"></a>
- <!--l. 45--><p class="noindent">Applies the given <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">actions</span><span
-class="cmsy-10">&gt; </span>to the current path. Afterwards, the current path is (globally) empty. The
- following actions are possible:
- <ul class="itemize1">
- <li class="itemize"><span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">fill</span></span></span> fills the path. See Section&nbsp;<a
-href="#x24-24600023.3">23.3<!--tex4ht:ref: section-fill --></a> for further details.
- <!--l. 51--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-461-" ><colgroup id="TBL-461-1g"><col
-id="TBL-461-1"><col
-id="TBL-461-2"></colgroup><tr
- valign="baseline" id="TBL-461-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-461-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-538.svg" width="38.93684 " height="38.93684 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-461-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpointorigin}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{1cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{0cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{fill}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
-
-
- </li>
- <li class="itemize"><span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">stroke</span></span></span> strokes the path. See Section&nbsp;<a
-href="#x24-23900023.2">23.2<!--tex4ht:ref: section-stroke --></a> for further details.
- <!--l. 61--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-462-" ><colgroup id="TBL-462-1g"><col
-id="TBL-462-1"><col
-id="TBL-462-2"></colgroup><tr
- valign="baseline" id="TBL-462-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-462-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-539.svg" width="39.47017 " height="39.47017 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-462-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpointorigin}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{1cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{0cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </li>
- <li class="itemize"><span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">clip</span></span></span> clips all subsequent drawings against the path. See Section&nbsp;<a
-href="#x24-25000023.4">23.4<!--tex4ht:ref: section-clip --></a> for further details.
- <!--l. 72--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-463-" ><colgroup id="TBL-463-1g"><col
-id="TBL-463-1"><col
-id="TBL-463-2"></colgroup><tr
- valign="baseline" id="TBL-463-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-463-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-540.svg" width="39.47017 " height="39.47017 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-463-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpointorigin}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{1cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{0cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke,clip}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{1cm}{1cm}}{0.5cm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{fill}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </li>
- <li class="itemize"><span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">discard</span></span></span> discards the path, that is, it is not used at all. Giving this option (alone) has the same effect as
- giving an empty options list.</li></ul>
- <!--l. 87--><p class="noindent">When more than one of the first three actions are given, they are applied in the above ordering, regardless of
- their ordering in <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">actions</span><span
-class="cmsy-10">&gt;</span>. Thus, <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">{stroke,fill}</span></span></span> and <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">{fill,stroke}</span></span></span> have the same effect.
- </dd></dl>
-<!--l. 93--><p class="indent"> To shade a path, use the <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\pgfshadepath</span></span></span> command, which is explained in Section&nbsp;<a
-href="pgfmanualse28.html#x29-28600028">28<!--tex4ht:ref: section-shadings --></a>.
-<!--l. 98--><p class="noindent">
- <h4 class="subsectionHead"><span class="titlemark">23.2 </span> <a
- id="x24-23900023.2"></a>Stroking a Path</h4>
-<!--l. 101--><p class="noindent">When you use <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\pgfusepath{stroke}</span></span></span> to stroke a path, several graphic parameters influence how the path is drawn.
-The commands for setting these parameters are explained in the following.
-<!--l. 105--><p class="indent"> Note that all graphic parameters apply to the path as a whole, never only to a part of it.
-<!--l. 108--><p class="indent"> All graphic parameters are local to the current <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">{pgfscope}</span></span></span>, but they persists past <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;groups, <span
-class="cmti-10">except </span>for
-the interior rule (even-odd or nonzero) and the arrow tip kinds. The latter graphic parameters only
-persist till the end of the current <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;group, but this may change in the future, so do not count on
-this.
-<!--l. 114--><p class="noindent">
- <h5 class="subsubsectionHead"><span class="titlemark">23.2.1 </span> <a
- id="x24-24000023.2.1"></a>Graphic Parameter: Line Width</h5>
-<!--l. 116--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox253"><span
-class="cmtt-10">\pgfsetlinewidth</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">line width</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-240001"></a>
- <!--l. 117--><p class="noindent">This command sets the line width for subsequent strokes (in the current <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">pgfscope</span></span></span>). The line width is
- given as a normal <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;dimension like <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">0.4pt</span></span></span> or <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">1mm</span></span></span>.
-
-
- <!--l. 121--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-464-" ><colgroup id="TBL-464-1g"><col
-id="TBL-464-1"><col
-id="TBL-464-2"></colgroup><tr
- valign="baseline" id="TBL-464-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-464-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-541.svg" width="84.46104 " height="25.65889 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-464-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetlinewidth{1mm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpoint{0mm}{0mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{2cm}{0mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetlinewidth{2\pgflinewidth}</span><span
-class="cmtt-8">&nbsp;</span><span
-class="cmsltt-10x-x-80">%</span><span
-class="cmsltt-10x-x-80">&nbsp;double</span><span
-class="cmsltt-10x-x-80">&nbsp;in</span><span
-class="cmsltt-10x-x-80">&nbsp;size</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpoint{0mm}{5mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{2cm}{5mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </dd></dl>
-<!--l. 135--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox254"><span
-class="cmtt-10">\pgflinewidth</span></span> </dt><dd
-class="description">
-<a
- id="dx24-240002"></a>
- <!--l. 136--><p class="noindent">You can access the current line width via the <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;dimension <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\pgflinewidth</span></span></span>. It will be set to the
- correct line width, that is, even when a <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;group closed, the value will be correct since it is set
- globally, but when a <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">{pgfscope}</span></span></span> closes, the value is set to the correct value it had before the scope. </dd></dl>
-<!--l. 144--><p class="noindent">
- <h5 class="subsubsectionHead"><span class="titlemark">23.2.2 </span> <a
- id="x24-24100023.2.2"></a>Graphic Parameter: Caps and Joins</h5>
-<!--l. 146--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox255"><span
-class="cmtt-10">\pgfsetbuttcap</span></span> </dt><dd
-class="description">
-<a
- id="dx24-241001"></a>
- <!--l. 147--><p class="noindent">Sets the line cap to a butt cap. See Section&nbsp;<a
-href="pgfmanualse10.html#x11-12300010.2.1">10.2.1<!--tex4ht:ref: section-cap-joins --></a> for an explanation of what this is. </dd></dl>
-<!--l. 150--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox256"><span
-class="cmtt-10">\pgfsetroundcap</span></span> </dt><dd
-class="description">
-<a
- id="dx24-241002"></a>
- <!--l. 151--><p class="noindent">Sets the line cap to a round cap. See again Section&nbsp;<a
-href="pgfmanualse10.html#x11-12300010.2.1">10.2.1<!--tex4ht:ref: section-cap-joins --></a>. </dd></dl>
-<!--l. 154--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox257"><span
-class="cmtt-10">\pgfsetrectcap</span></span> </dt><dd
-class="description">
-<a
- id="dx24-241003"></a>
- <!--l. 155--><p class="noindent">Sets the line cap to a square cap. See again Section&nbsp;<a
-href="pgfmanualse10.html#x11-12300010.2.1">10.2.1<!--tex4ht:ref: section-cap-joins --></a>. </dd></dl>
-<!--l. 158--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox258"><span
-class="cmtt-10">\pgfsetroundjoin</span></span> </dt><dd
-class="description">
-<a
- id="dx24-241004"></a>
- <!--l. 159--><p class="noindent">Sets the line join to a round join. See again Section&nbsp;<a
-href="pgfmanualse10.html#x11-12300010.2.1">10.2.1<!--tex4ht:ref: section-cap-joins --></a>. </dd></dl>
-<!--l. 162--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox259"><span
-class="cmtt-10">\pgfsetbeveljoin</span></span> </dt><dd
-class="description">
-<a
- id="dx24-241005"></a>
- <!--l. 163--><p class="noindent">Sets the line join to a bevel join. See again Section&nbsp;<a
-href="pgfmanualse10.html#x11-12300010.2.1">10.2.1<!--tex4ht:ref: section-cap-joins --></a>. </dd></dl>
-<!--l. 166--><p class="noindent">
-
-
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox260"><span
-class="cmtt-10">\pgfsetmiterjoin</span></span> </dt><dd
-class="description">
-<a
- id="dx24-241006"></a>
- <!--l. 167--><p class="noindent">Sets the line join to a miter join. See again Section&nbsp;<a
-href="pgfmanualse10.html#x11-12300010.2.1">10.2.1<!--tex4ht:ref: section-cap-joins --></a>. </dd></dl>
-<!--l. 170--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox261"><span
-class="cmtt-10">\pgfsetmiterlimit</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">miter limit factor</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-241007"></a>
- <!--l. 171--><p class="noindent">Sets the miter limit to <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">miter limit factor</span><span
-class="cmsy-10">&gt;</span>. See again Section&nbsp;<a
-href="pgfmanualse10.html#x11-12300010.2.1">10.2.1<!--tex4ht:ref: section-cap-joins --></a>. </dd></dl>
-<!--l. 175--><p class="noindent">
- <h5 class="subsubsectionHead"><span class="titlemark">23.2.3 </span> <a
- id="x24-24200023.2.3"></a>Graphic Parameter: Dashing</h5>
-<!--l. 177--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox262"><span
-class="cmtt-10">\pgfsetdash</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">list of even length of dimensions</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">phase</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-242001"></a>
- <!--l. 178--><p class="noindent">Sets the dashing of a line. The first entry in the list specifies the length of the first solid part of the
- list. The second entry specifies the length of the following gap. Then comes the length of the second
- solid part, following by the length of the second gap, and so on. The <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">phase</span><span
-class="cmsy-10">&gt; </span>specifies where the first
- solid part starts relative to the beginning of the line.
- <!--l. 185--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-465-" ><colgroup id="TBL-465-1g"><col
-id="TBL-465-1"><col
-id="TBL-465-2"></colgroup><tr
- valign="baseline" id="TBL-465-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-465-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-542.svg" width="77.40703 " height="9.12067 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-465-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetdash{{0.5cm}{0.5cm}{0.1cm}{0.2cm}}{0cm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpoint{0mm}{0mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{2cm}{0mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetdash{{0.5cm}{0.5cm}{0.1cm}{0.2cm}}{0.1cm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpoint{0mm}{1mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{2cm}{1mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetdash{{0.5cm}{0.5cm}{0.1cm}{0.2cm}}{0.2cm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpoint{0mm}{2mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{2cm}{2mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- <!--l. 202--><p class="noindent">Use <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\pgfsetdash{}{0pt}</span></span></span> to get a solid dashing. </dd></dl>
-<!--l. 205--><p class="noindent">
- <h5 class="subsubsectionHead"><span class="titlemark">23.2.4 </span> <a
- id="x24-24300023.2.4"></a>Graphic Parameter: Stroke Color</h5>
-<!--l. 207--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox263"><span
-class="cmtt-10">\pgfsetstrokecolor</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">color</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-243001"></a>
- <!--l. 208--><p class="noindent">Sets the color used for stroking lines to <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">color</span><span
-class="cmsy-10">&gt;</span>, where <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">color</span><span
-class="cmsy-10">&gt; </span>is a <span class="LATEX">L<span class="A">A</span><span class="TEX">T<span
-class="E">E</span>X</span></span>&nbsp;color like <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">red</span></span></span> or
- <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">black!20!red</span></span></span>. Unlike the <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\color</span></span></span> command, the effect of this command lasts till the end of the current
- <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">{pgfscope}</span></span></span> and not till the end of the current <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;group.
- <!--l. 214--><p class="noindent">The color used for stroking may be different from the color used for filling. However, a <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\color</span></span></span> command
- will always &#8220;immediately override&#8221; any special settings for the stroke and fill colors.
- <!--l. 218--><p class="noindent">In plain <span class="TEX">T<span
-class="E">E</span>X</span>, this command will also work, but the problem of <span
-class="cmti-10">defining </span>a color arises. After all, plain
- <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;does not provide <span class="LATEX">L<span class="A">A</span><span class="TEX">T<span
-class="E">E</span>X</span></span>&nbsp;colors. For this reason, <span
-class="cmcsc-10"><small
-class="small-caps">P</small><small
-class="small-caps">G</small><small
-class="small-caps">F</small></span>&nbsp;implements a minimalistic &#8220;emulation&#8221; of
- the <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\definecolor</span></span></span>, <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\colorlet</span></span></span>, and <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\color</span></span></span> commands. Only gray-scale and rgb colors are supported.
- For most cases this turns out to be enough.
-
-
- <!--l. 225--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-466-" ><colgroup id="TBL-466-1g"><col
-id="TBL-466-1"><col
-id="TBL-466-2"></colgroup><tr
- valign="baseline" id="TBL-466-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-466-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-543.svg" width="100.96912 " height="25.0954 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-466-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetlinewidth{1pt}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\color{red}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{0cm}{0cm}}{3mm}</span><span
-class="cmtt-8">&nbsp;\pgfusepath{fill,stroke}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetstrokecolor{black}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{1cm}{0cm}}{3mm}</span><span
-class="cmtt-8">&nbsp;\pgfusepath{fill,stroke}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\color{red}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{2cm}{0cm}}{3mm}</span><span
-class="cmtt-8">&nbsp;\pgfusepath{fill,stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </dd></dl>
-<!--l. 238--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox264"><span
-class="cmtt-10">\pgfsetcolor</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">color</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-243002"></a>
- <!--l. 239--><p class="noindent">Sets both the stroke and fill color. The difference to the normal <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\color</span></span></span> command is that the effect
- lasts till the end of the current <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">{pgfscope}</span></span></span>, not only till the end of the current <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;group. </dd></dl>
-<!--l. 246--><p class="noindent">
- <h5 class="subsubsectionHead"><span class="titlemark">23.2.5 </span> <a
- id="x24-24400023.2.5"></a>Graphic Parameter: Stroke Opacity</h5>
-<!--l. 248--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox265"><span
-class="cmtt-10">\pgfsetstrokeopacity</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">value</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-244001"></a>
- <!--l. 249--><p class="noindent">Sets the opacity of stroking operations. The <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">value</span><span
-class="cmsy-10">&gt; </span>should be a number between <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">0</span></span></span> and <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">1</span></span></span>, where <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">1</span></span></span>
- means &#8220;fully opaque&#8221; and <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">0</span></span></span> means &#8220;fully transparent.&#8221; A value like <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">0.5</span></span></span> will cause paths to be stroked
- in a semitransparent way.
- <!--l. 254--><p class="noindent"><span
-class="cmti-10">Note: </span>For PostScript output, opacity is rendered correctly only with the most recent versions of
- GhostScript. Printers and other programs will ignore the opacity setting.
- <!--l. 258--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-467-" ><colgroup id="TBL-467-1g"><col
-id="TBL-467-1"><col
-id="TBL-467-2"></colgroup><tr
- valign="baseline" id="TBL-467-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-467-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-544.svg" width="133.77893 " height="95.84207 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-467-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetlinewidth{5mm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\color{red}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{0cm}{0cm}}{10mm}</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\color{black}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetstrokeopacity{0.5}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{1cm}{0cm}}{10mm}</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </dd></dl>
-<!--l. 271--><p class="noindent">
- <h5 class="subsubsectionHead"><span class="titlemark">23.2.6 </span> <a
- id="x24-24500023.2.6"></a>Graphic Parameter: Arrows</h5>
-<!--l. 273--><p class="noindent">After a path has been drawn, <span
-class="cmcsc-10"><small
-class="small-caps">P</small><small
-class="small-caps">G</small><small
-class="small-caps">F</small></span>&nbsp;can add arrow tips at the ends. Currently, it will only add arrows correctly at the
-end of paths that consist of a single open part. For other paths, like closed paths or path consisting of multiple
-parts, the result is not defined.
-<!--l. 278--><p class="indent">
-
-
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox266"><span
-class="cmtt-10">\pgfsetarrowsstart</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">arrow kind</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-245001"></a>
- <!--l. 279--><p class="noindent">Sets the arrow tip kind used at the start of a (possibly curved) path. When this option is used, the
- line will often be slightly shortened to ensure that the tip of the arrow will exactly &#8220;touch&#8221; the &#8220;real&#8221;
- start of the line.
- <!--l. 284--><p class="noindent">To &#8220;clear&#8221; the start arrow, say <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\pgfsetarrowsstart{}</span></span></span>.
- <!--l. 285--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-468-" ><colgroup id="TBL-468-1g"><col
-id="TBL-468-1"><col
-id="TBL-468-2"></colgroup><tr
- valign="baseline" id="TBL-468-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-468-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-545.svg" width="39.47017 " height="9.12067 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-468-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetarrowsstart{latex}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpointorigin}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{0cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetarrowsstart{to}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpoint{0cm}{2mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{2mm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- <!--l. 298--><p class="noindent">The effect of this command persists only till the end of the current <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;scope.
- <!--l. 301--><p class="noindent">The different possible arrow kinds are explained in Section&nbsp;<a
-href="pgfmanualse24.html#x25-25200024">24<!--tex4ht:ref: section-arrows --></a>. </dd></dl>
-<!--l. 305--><p class="indent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox267"><span
-class="cmtt-10">\pgfsetarrowsend</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">arrow kind</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-245002"></a>
- <!--l. 306--><p class="noindent">Sets the arrow tip kind used at the end of a path.
- <!--l. 307--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-469-" ><colgroup id="TBL-469-1g"><col
-id="TBL-469-1"><col
-id="TBL-469-2"></colgroup><tr
- valign="baseline" id="TBL-469-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-469-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-546.svg" width="39.47017 " height="2.33333 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-469-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetarrowsstart{latex}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetarrowsend{to}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpointorigin}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{0cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </dd></dl>
-<!--l. 318--><p class="indent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox268"><span
-class="cmtt-10">\pgfsetarrows</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">start kind</span><span
-class="cmsy-10">&gt;</span><span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">-</span></span></span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">end kind</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-245003"></a>
- <!--l. 319--><p class="noindent">Sets the start arrow kind to <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">start kind</span><span
-class="cmsy-10">&gt; </span>and the end kind to <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">end kind</span><span
-class="cmsy-10">&gt;</span>.
- <!--l. 321--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-470-" ><colgroup id="TBL-470-1g"><col
-id="TBL-470-1"><col
-id="TBL-470-2"></colgroup><tr
- valign="baseline" id="TBL-470-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-470-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-547.svg" width="39.47017 " height="2.33333 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-470-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetarrows{latex-to}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpointorigin}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{1cm}{0cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </dd></dl>
-<!--l. 331--><p class="indent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox269"><span
-class="cmtt-10">\pgfsetshortenstart</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">dimension</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-245004"></a>
- <!--l. 332--><p class="noindent">This command will shortened the start of every stroked path by the given dimension. This shortening
- is done in addition to automatic shortening done by a start arrow, but it can be used even if no start
- arrow is given.
-
-
- <!--l. 337--><p class="noindent">This command is useful if you wish arrows or lines to &#8220;stop shortly before&#8221; a given point.
- <!--l. 339--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-471-" ><colgroup id="TBL-471-1g"><col
-id="TBL-471-1"><col
-id="TBL-471-2"></colgroup><tr
- valign="baseline" id="TBL-471-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-471-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-548.svg" width="96.37544 " height="39.47014 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-471-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpointorigin}{5mm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetarrows{latex-}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetshortenstart{4pt}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathmoveto{\pgfpoint{5mm}{0cm}}</span><span
-class="cmtt-8">&nbsp;</span><span
-class="cmsltt-10x-x-80">%</span><span
-class="cmsltt-10x-x-80">&nbsp;would</span><span
-class="cmsltt-10x-x-80">&nbsp;be</span><span
-class="cmsltt-10x-x-80">&nbsp;on</span><span
-class="cmsltt-10x-x-80">&nbsp;the</span><span
-class="cmsltt-10x-x-80">&nbsp;circle</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathlineto{\pgfpoint{2cm}{0cm}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </dd></dl>
-<!--l. 352--><p class="indent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox270"><span
-class="cmtt-10">\pgfsetshortenend</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">dimension</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-245005"></a>
- <!--l. 353--><p class="noindent">Works like <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\pgfsetshortenstart</span></span></span>. </dd></dl>
-<!--l. 358--><p class="noindent">
- <h4 class="subsectionHead"><span class="titlemark">23.3 </span> <a
- id="x24-24600023.3"></a>Filling a Path</h4>
-<!--l. 361--><p class="noindent">Filling a path means coloring every interior point of the path with the current fill color. It is not always obvious
-whether a point is &#8220;inside&#8221; a path when the path is self-intersecting and/or consists or multiple parts. In this case
-either the nonzero winding number rule or the even-odd crossing number rule is used to decide, which points lie
-&#8220;inside.&#8221; These rules are explained in Section&nbsp;<a
-href="pgfmanualse10.html#x11-12800010.3">10.3<!--tex4ht:ref: section-rules --></a>.
-<!--l. 369--><p class="noindent">
- <h5 class="subsubsectionHead"><span class="titlemark">23.3.1 </span> <a
- id="x24-24700023.3.1"></a>Graphic Parameter: Interior Rule</h5>
-<!--l. 371--><p class="noindent">You can set which rule is used using the following commands:
-<!--l. 373--><p class="indent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox271"><span
-class="cmtt-10">\pgfseteorule</span></span> </dt><dd
-class="description">
-<a
- id="dx24-247001"></a>
- <!--l. 374--><p class="noindent">Dictates that the even-odd rule is used in subsequent fillings in the current <span class="TEX"><span
-class="cmti-10">T</span><span
-class="E"><span
-class="cmti-10">E</span></span><span
-class="cmti-10">X</span></span><span
-class="cmti-10">&nbsp;scope</span>. Thus, for once,
- the effect of this command does not persist past the current <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;scope.
- <!--l. 378--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-472-" ><colgroup id="TBL-472-1g"><col
-id="TBL-472-1"><col
-id="TBL-472-2"></colgroup><tr
- valign="baseline" id="TBL-472-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-472-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-549.svg" width="73.07997 " height="54.11157 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-472-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfseteorule</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{0mm}{0cm}}{7mm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{5mm}{0cm}}{7mm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{fill}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </dd></dl>
-<!--l. 388--><p class="indent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox272"><span
-class="cmtt-10">\pgfsetnonzerorule</span></span> </dt><dd
-class="description">
-<a
- id="dx24-247002"></a>
-
-
- <!--l. 389--><p class="noindent">Dictates that the nonzero winding number rule is used in subsequent fillings in the current <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;scope.
- This is the default.
- <!--l. 392--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-473-" ><colgroup id="TBL-473-1g"><col
-id="TBL-473-1"><col
-id="TBL-473-2"></colgroup><tr
- valign="baseline" id="TBL-473-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-473-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-550.svg" width="73.07997 " height="54.11157 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-473-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetnonzerorule</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{0mm}{0cm}}{7mm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpoint{5mm}{0cm}}{7mm}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{fill}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </dd></dl>
-<!--l. 402--><p class="noindent">
- <h5 class="subsubsectionHead"><span class="titlemark">23.3.2 </span> <a
- id="x24-24800023.3.2"></a>Graphic Parameter: Filling Color</h5>
-<!--l. 404--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox273"><span
-class="cmtt-10">\pgfsetfillcolor</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">color</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-248001"></a>
- <!--l. 405--><p class="noindent">Sets the color used for filling paths to <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">color</span><span
-class="cmsy-10">&gt;</span>. Like the stroke color, the effect lasts only till the next
- use of <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">\color</span></span></span>. </dd></dl>
-<!--l. 410--><p class="noindent">
- <h5 class="subsubsectionHead"><span class="titlemark">23.3.3 </span> <a
- id="x24-24900023.3.3"></a>Graphic Parameter: Fill Opacity</h5>
-<!--l. 412--><p class="noindent">
- <dl class="description"><dt class="description">
-<span
-class="colorbox" id="colorbox274"><span
-class="cmtt-10">\pgfsetfillopacity</span><span
-class="cmtt-10">{</span><span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">value</span><span
-class="cmsy-10">&gt;</span><span
-class="cmtt-10">}</span></span> </dt><dd
-class="description">
-<a
- id="dx24-249001"></a>
- <!--l. 413--><p class="noindent">Sets the opacity of filling operations. As for stroking, the <span
-class="cmsy-10">&lt;</span><span
-class="cmti-10">value</span><span
-class="cmsy-10">&gt; </span>should be a number between <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">0</span></span></span> and&nbsp;<span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">1</span></span></span>.
- <!--l. 416--><p class="noindent">The &#8220;filling transparency&#8221; will also be used for text and images.
- <!--l. 418--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular">
-<table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-474-" ><colgroup id="TBL-474-1g"><col
-id="TBL-474-1"><col
-id="TBL-474-2"></colgroup><tr
- valign="baseline" id="TBL-474-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-474-1-1"
-class="td11"> &nbsp;<object data="pgfmanual-551.svg" width="150.16975 " height="141.36632 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-474-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">\begin{tikzpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfsetfillopacity{0.5}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\fill[red]</span><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;(90:1cm)</span><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;circle</span><span
-class="cmtt-8">&nbsp;(11mm);</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\fill[green]</span><span
-class="cmtt-8">&nbsp;(210:1cm)</span><span
-class="cmtt-8">&nbsp;circle</span><span
-class="cmtt-8">&nbsp;(11mm);</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\fill[blue]</span><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;(-30:1cm)</span><span
-class="cmtt-8">&nbsp;circle</span><span
-class="cmtt-8">&nbsp;(11mm);</span>
-<br><span
-class="cmtt-8">\end{tikzpicture}</span></div> </td></tr></table> </td>
-</tr></table></div>
- </dd></dl>
-
-
-<!--l. 428--><p class="noindent">
- <h4 class="subsectionHead"><span class="titlemark">23.4 </span> <a
- id="x24-25000023.4"></a>Clipping a Path</h4>
-<!--l. 431--><p class="noindent">When you add the <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">clip</span></span></span> option, the current path is used for clipping subsequent drawings. The same rule as for
-filling is used to decide whether a point is inside or outside the path, that is, either the even-odd rule or the nonzero
-rule.
-<!--l. 436--><p class="indent"> Clipping never enlarges the clipping area. Thus, when you clip against a certain path and then clip again against
-another path, you clip against the intersection of both.
-<!--l. 440--><p class="indent"> The only way to enlarge the clipping path is to end the <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">{pgfscope}</span></span></span> in which the clipping was
-done. At the end of a <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">{pgfscope}</span></span></span> the clipping path that was in force at the beginning of the scope is
-reinstalled.
-<!--l. 445--><p class="noindent">
- <h4 class="subsectionHead"><span class="titlemark">23.5 </span> <a
- id="x24-25100023.5"></a>Using a Path as a Bounding Box</h4>
-<!--l. 448--><p class="noindent">When you add the <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">use</span><span
-class="cmtt-10">&nbsp;as</span><span
-class="cmtt-10">&nbsp;bounding</span><span
-class="cmtt-10">&nbsp;box</span></span></span> option, the bounding box of the picture will be enlarged such that the
-path in encompassed, but any <span
-class="cmti-10">subsequent </span>paths of the current <span class="TEX">T<span
-class="E">E</span>X</span>&nbsp;scope will not have any effect on the
-size of the bounding box. Typically, you use this command at the very beginning of a <span class="obeylines-h"><span class="verb"><span
-class="cmtt-10">{pgfpicture}</span></span></span>
-environment.
-<!--l. 454--><p class="noindent"><div class="obeylines-v"></div><!--tex4ht:inline--><div class="tabular"><table class="tabular"
-cellspacing="0" cellpadding="0"
-frame="void" id="TBL-475-" ><colgroup id="TBL-475-1g"><col
-id="TBL-475-1"><col
-id="TBL-475-2"></colgroup><tr
- valign="baseline" id="TBL-475-1-"><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-475-1-1"
-class="td11"> &nbsp;Left<object data="pgfmanual-552.svg" width="12.4814 " height="6.74069 " type="image/svg+xml"><p>SVG-Viewer needed.</p></object>right.&nbsp; </td><td align="left" style="white-space:nowrap; text-align:left;" id="TBL-475-1-2"
-class="td11"> <table class="minipage"><tr><td><div class="obeylines-v">
-<br><span
-class="cmtt-8">Left</span>
-<br><span
-class="cmtt-8">\begin{pgfpicture}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathrectangle{\pgfpointorigin}{\pgfpoint{2ex}{1ex}}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{use</span><span
-class="cmtt-8">&nbsp;as</span><span
-class="cmtt-8">&nbsp;bounding</span><span
-class="cmtt-8">&nbsp;box}</span><span
-class="cmtt-8">&nbsp;</span><span
-class="cmsltt-10x-x-80">%</span><span
-class="cmsltt-10x-x-80">&nbsp;draws</span><span
-class="cmsltt-10x-x-80">&nbsp;nothing</span>
-<br>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfpathcircle{\pgfpointorigin}{2ex}</span>
-<br><span
-class="cmtt-8">&nbsp;</span><span
-class="cmtt-8">&nbsp;\pgfusepath{stroke}</span>
-<br><span
-class="cmtt-8">\end{pgfpicture}</span>
-<br><span
-class="cmtt-8">right.</span></div> </td></tr></table> </td>
-</tr></table></div>
-
-
-
-
-
-
- <div class="crosslinks"><p class="noindent">[<a
-href="pgfmanualse24.html" >next</a>] [<a
-href="pgfmanualse22.html" >prev</a>] [<a
-href="pgfmanualse22.html#tailpgfmanualse22.html" >prev-tail</a>] [<a
-href="pgfmanualse23.html" >front</a>] [<a
-href="pgfmanual.html#pgfmanualse23.html" >up</a>] </p></div>
-<!--l. 8--><p class="indent"> <a
- id="tailpgfmanualse23.html"></a>
-</body></html>