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<title>Creates a shading for later use</title>
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<h1 class="refname">ps_shading</h1>
<p class="verinfo">(PECL ps >= 1.3.0)</p><p class="refpurpose"><span class="refname">ps_shading</span> — <span class="dc-title">Creates a shading for later use</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.ps-shading-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>ps_shading</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$psdoc</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$type</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$x0</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$y0</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$x1</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$y1</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$c1</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$c2</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$c3</code></span>
, <span class="methodparam"><span class="type">float</span> <code class="parameter">$c4</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$optlist</code></span>
)</div>
<p class="para rdfs-comment">
Creates a shading, which can be used by <span class="function"><a href="function.ps-shfill.html" class="function">ps_shfill()</a></span> or
<span class="function"><a href="function.ps-shading-pattern.html" class="function">ps_shading_pattern()</a></span>.
</p>
<p class="para">
The color of the shading can be in any color space except for
<em>pattern</em>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.ps-shading-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">psdoc</code></em></span>
<dd>
<p class="para">
Resource identifier of the postscript file
as returned by <span class="function"><a href="function.ps-new.html" class="function">ps_new()</a></span>.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">type</code></em></span>
<dd>
<p class="para">
The type of shading can be either <em>radial</em> or
<em>axial</em>. Each shading starts with the current fill
color and ends with the given color values passed in the parameters
<em><code class="parameter">c1</code></em> to <em><code class="parameter">c4</code></em>
(see <span class="function"><a href="function.ps-setcolor.html" class="function">ps_setcolor()</a></span> for their meaning).
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">x0, x1, y0, y1</code></em></span>
<dd>
<p class="para">
The coordinates <em><code class="parameter">x0</code></em>, <em><code class="parameter">y0</code></em>,
<em><code class="parameter">x1</code></em>, <em><code class="parameter">y1</code></em> are the start and
end point of the shading. If the type of shading is
<em>radial</em> the two points are the middle points of
a starting and ending circle.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">c1, c2, c3, c4</code></em></span>
<dd>
<p class="para">
See <span class="function"><a href="function.ps-setcolor.html" class="function">ps_setcolor()</a></span> for their meaning.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">optlist</code></em></span>
<dd>
<p class="para">
If the shading is of type <em>radial</em> the
<em><code class="parameter">optlist</code></em> must also contain the parameters
<em>r0</em> and <em>r1</em> with the radius of the
start and end circle.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.ps-shading-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the identifier of the pattern or <strong><code>FALSE</code></strong> on failure.
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.ps-shading-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.ps-shading-pattern.html" class="function" rel="rdfs-seeAlso">ps_shading_pattern()</a> - Creates a pattern based on a shading</span></li>
<li class="member"> <span class="function"><a href="function.ps-shfill.html" class="function" rel="rdfs-seeAlso">ps_shfill()</a> - Fills an area with a shading</span></li>
</ul>
</p>
</div>
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