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<a href="#GOBezierSpline.description" class="shortcut">Description</a>
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<a href="#GOBezierSpline.object-hierarchy" class="shortcut">Object Hierarchy</a>
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<a name="GOBezierSpline"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="GOBezierSpline.top_of_page"></a>GOBezierSpline</span></h2>
<p>GOBezierSpline</p>
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<td valign="top" align="right"></td>
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<div class="refsynopsisdiv">
<a name="GOBezierSpline.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis"> <a class="link" href="GOBezierSpline.html#GOBezierSpline-struct" title="GOBezierSpline">GOBezierSpline</a>;
<span class="returnvalue">void</span> <a class="link" href="GOBezierSpline.html#go-bezier-spline-destroy" title="go_bezier_spline_destroy ()">go_bezier_spline_destroy</a> (<em class="parameter"><code><a class="link" href="GOBezierSpline.html" title="GOBezierSpline"><span class="type">GOBezierSpline</span></a> *sp</code></em>);
<a class="link" href="GOBezierSpline.html" title="GOBezierSpline"><span class="returnvalue">GOBezierSpline</span></a> * <a class="link" href="GOBezierSpline.html#go-bezier-spline-init" title="go_bezier_spline_init ()">go_bezier_spline_init</a> (<em class="parameter"><code><span class="type">double</span> const *x</code></em>,
<em class="parameter"><code><span class="type">double</span> const *y</code></em>,
<em class="parameter"><code><span class="type">int</span> n</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> closed</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GOBezierSpline.html#go-bezier-spline-to-cairo" title="go_bezier_spline_to_cairo ()">go_bezier_spline_to_cairo</a> (<em class="parameter"><code><a class="link" href="GOBezierSpline.html" title="GOBezierSpline"><span class="type">GOBezierSpline</span></a> *sp</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/cairo/cairo-cairo-t.html#cairo-t"><span class="type">cairo_t</span></a> *cr</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> horiz_flip</code></em>);
<a class="link" href="GOPath.html" title="GOPath"><span class="returnvalue">GOPath</span></a> * <a class="link" href="GOBezierSpline.html#go-bezier-spline-to-path" title="go_bezier_spline_to_path ()">go_bezier_spline_to_path</a> (<em class="parameter"><code><a class="link" href="GOBezierSpline.html" title="GOBezierSpline"><span class="type">GOBezierSpline</span></a> *sp</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="GOBezierSpline.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GBoxed
+----GOBezierSpline
</pre>
</div>
<div class="refsect1">
<a name="GOBezierSpline.description"></a><h2>Description</h2>
<p>
</p>
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<div class="refsect1">
<a name="GOBezierSpline.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GOBezierSpline-struct"></a><h3>GOBezierSpline</h3>
<pre class="programlisting">typedef struct {
double *x, *y;
int n;
gboolean closed;
/* private */
unsigned ref_count;
} GOBezierSpline;
</pre>
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<td><p><span class="term"><span class="type">double</span> *<em class="structfield"><code><a name="GOBezierSpline-struct.x"></a>x</code></em>;</span></p></td>
<td>control points abscissa.</td>
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<td><p><span class="term"><span class="type">double</span> *<em class="structfield"><code><a name="GOBezierSpline-struct.y"></a>y</code></em>;</span></p></td>
<td>control points ordinates.</td>
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<td><p><span class="term"><span class="type">int</span> <em class="structfield"><code><a name="GOBezierSpline-struct.n"></a>n</code></em>;</span></p></td>
<td>spline segments number.</td>
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<td><p><span class="term"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> <em class="structfield"><code><a name="GOBezierSpline-struct.closed"></a>closed</code></em>;</span></p></td>
<td>whether the curve is closed.</td>
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<hr>
<div class="refsect2">
<a name="go-bezier-spline-destroy"></a><h3>go_bezier_spline_destroy ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> go_bezier_spline_destroy (<em class="parameter"><code><a class="link" href="GOBezierSpline.html" title="GOBezierSpline"><span class="type">GOBezierSpline</span></a> *sp</code></em>);</pre>
<p>
Destroys the given structures after cleaning all allocated fields.
</p>
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<td><p><span class="term"><em class="parameter"><code>sp</code></em> :</span></p></td>
<td>a struct GOBezierSpline instance</td>
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<hr>
<div class="refsect2">
<a name="go-bezier-spline-init"></a><h3>go_bezier_spline_init ()</h3>
<pre class="programlisting"><a class="link" href="GOBezierSpline.html" title="GOBezierSpline"><span class="returnvalue">GOBezierSpline</span></a> * go_bezier_spline_init (<em class="parameter"><code><span class="type">double</span> const *x</code></em>,
<em class="parameter"><code><span class="type">double</span> const *y</code></em>,
<em class="parameter"><code><span class="type">int</span> n</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> closed</code></em>);</pre>
<p>
<em class="parameter"><code>x</code></em> and <em class="parameter"><code>y</code></em> values must be valid and finite. The returned structure
contains the x and y coordinates of all control points, including the
incoming data. the n and closed fields are just copies of the corresponding
arguments.
</p>
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<td><p><span class="term"><em class="parameter"><code>x</code></em> :</span></p></td>
<td>the x values</td>
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<td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td>
<td>the y values</td>
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<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td>the number of x and y values</td>
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<td><p><span class="term"><em class="parameter"><code>closed</code></em> :</span></p></td>
<td>whether to return a closed curve or not</td>
</tr>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly created struct GOBezierSpline instance which should be
destroyed by a call to go_bezier_spline_destroy.</td>
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</tbody>
</table></div>
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<hr>
<div class="refsect2">
<a name="go-bezier-spline-to-cairo"></a><h3>go_bezier_spline_to_cairo ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> go_bezier_spline_to_cairo (<em class="parameter"><code><a class="link" href="GOBezierSpline.html" title="GOBezierSpline"><span class="type">GOBezierSpline</span></a> *sp</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/cairo/cairo-cairo-t.html#cairo-t"><span class="type">cairo_t</span></a> *cr</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> horiz_flip</code></em>);</pre>
<p>
Renders the spline in \a cr
</p>
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<td><p><span class="term"><em class="parameter"><code>sp</code></em> :</span></p></td>
<td>a struct GOBezierSpline instance returned by go_bezier_spline_init</td>
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<td><p><span class="term"><em class="parameter"><code>cr</code></em> :</span></p></td>
<td>a cairo context</td>
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<td><p><span class="term"><em class="parameter"><code>horiz_flip</code></em> :</span></p></td>
<td>whether to flip horizontally (for a RTL canvas).</td>
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<hr>
<div class="refsect2">
<a name="go-bezier-spline-to-path"></a><h3>go_bezier_spline_to_path ()</h3>
<pre class="programlisting"><a class="link" href="GOPath.html" title="GOPath"><span class="returnvalue">GOPath</span></a> * go_bezier_spline_to_path (<em class="parameter"><code><a class="link" href="GOBezierSpline.html" title="GOBezierSpline"><span class="type">GOBezierSpline</span></a> *sp</code></em>);</pre>
<p>
Builds a GOPath using the control points evaluated in go_bezier_spline_init.
</p>
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<td><p><span class="term"><em class="parameter"><code>sp</code></em> :</span></p></td>
<td>a struct GOBezierSpline instance returned by go_bezier_spline_init</td>
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<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly created GOPath which should be destroyed by a call to
go_path_free.</td>
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</tbody>
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