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New upstream version 2.10.0~RC1

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Jeremy Bicha
2018-03-28 12:37:30 -04:00
parent 4e910d9e95 956ca8e3a3
commit 6ee700fd3d
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devel-docs/libgimp/html/libgimp-gimpitemtransform.html
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@ -8,7 +8,7 @@
<link rel="up" href="libgimp-image.html" title="Manupulating Images and their Properties">
<link rel="prev" href="libgimp-gimpitem.html" title="gimpitem">
<link rel="next" href="libgimp-gimplayer.html" title="gimplayer">
<meta name="generator" content="GTK-Doc V1.25 (XML mode)">
<meta name="generator" content="GTK-Doc V1.27 (XML mode)">
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</head>
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@ -27,7 +27,7 @@
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libgimp-gimpitemtransform.top_of_page"></a>gimpitemtransform</span></h2>
<p>gimpitemtransform</p>
<p>gimpitemtransform — Functions to perform transformations on items.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
@ -41,7 +41,7 @@
<tbody>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
<a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpitemtransform.html#gimp-item-transform-flip-simple" title="gimp_item_transform_flip_simple ()">gimp_item_transform_flip_simple</a> <span class="c_punctuation">()</span>
@ -49,7 +49,7 @@
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
<a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpitemtransform.html#gimp-item-transform-flip" title="gimp_item_transform_flip ()">gimp_item_transform_flip</a> <span class="c_punctuation">()</span>
@ -57,7 +57,7 @@
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
<a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpitemtransform.html#gimp-item-transform-perspective" title="gimp_item_transform_perspective ()">gimp_item_transform_perspective</a> <span class="c_punctuation">()</span>
@ -65,7 +65,7 @@
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
<a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpitemtransform.html#gimp-item-transform-rotate-simple" title="gimp_item_transform_rotate_simple ()">gimp_item_transform_rotate_simple</a> <span class="c_punctuation">()</span>
@ -73,7 +73,7 @@
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
<a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpitemtransform.html#gimp-item-transform-rotate" title="gimp_item_transform_rotate ()">gimp_item_transform_rotate</a> <span class="c_punctuation">()</span>
@ -81,7 +81,7 @@
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
<a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpitemtransform.html#gimp-item-transform-scale" title="gimp_item_transform_scale ()">gimp_item_transform_scale</a> <span class="c_punctuation">()</span>
@ -89,7 +89,7 @@
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
<a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpitemtransform.html#gimp-item-transform-shear" title="gimp_item_transform_shear ()">gimp_item_transform_shear</a> <span class="c_punctuation">()</span>
@ -97,7 +97,7 @@
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
<a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpitemtransform.html#gimp-item-transform-2d" title="gimp_item_transform_2d ()">gimp_item_transform_2d</a> <span class="c_punctuation">()</span>
@ -105,7 +105,7 @@
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
<a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
</td>
<td class="function_name">
<a class="link" href="libgimp-gimpitemtransform.html#gimp-item-transform-matrix" title="gimp_item_transform_matrix ()">gimp_item_transform_matrix</a> <span class="c_punctuation">()</span>
@ -116,115 +116,663 @@
</div>
<div class="refsect1">
<a name="libgimp-gimpitemtransform.description"></a><h2>Description</h2>
<p>Functions to perform transformations on items.</p>
</div>
<div class="refsect1">
<a name="libgimp-gimpitemtransform.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gimp-item-transform-flip-simple"></a><h3>gimp_item_transform_flip_simple ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_flip_simple (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a class="link" href="libgimp-gimpenums.html#GimpOrientationType" title="enum GimpOrientationType"><span class="type">GimpOrientationType</span></a> flip_type</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> auto_center</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> axis</code></em>);</pre>
<p class="since">Since: GIMP 2.2</p>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_flip_simple (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="../html/libgimpbase-gimpbaseenums.html#GimpOrientationType"><span class="type">GimpOrientationType</span></a> flip_type</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> auto_center</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> axis</code></em>);</pre>
<p>Flip the specified item either vertically or horizontally.</p>
<p>This procedure flips the specified item. If a selection exists and
the item is a drawable, the portion of the drawable which lies under
the selection is cut from the drawable and made into a floating
selection which is then flipped. If auto_center is set to TRUE, the
flip is around the selection's center. Otherwise, the coordinate of
the axis needs to be specified. The return value is the ID of the
flipped item. If there was no selection or the item is not a
drawable, this will be equal to the item ID supplied as input.
Otherwise, this will be the newly created and flipped drawable.
This procedure is affected by the following context setters:
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-resize" title="gimp_context_set_transform_resize ()"><code class="function">gimp_context_set_transform_resize()</code></a>.</p>
<div class="refsect3">
<a name="gimp-item-transform-flip-simple.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>item_ID</p></td>
<td class="parameter_description"><p>The affected item.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flip_type</p></td>
<td class="parameter_description"><p>Type of flip.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>auto_center</p></td>
<td class="parameter_description"><p>Whether to automatically position the axis in the selection center.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>axis</p></td>
<td class="parameter_description"><p>coord. of flip axis.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-item-transform-flip-simple.returns"></a><h4>Returns</h4>
<p> The flipped item.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-2.html#api-index-2.2">2.2</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-item-transform-flip"></a><h3>gimp_item_transform_flip ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_flip (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x0</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y0</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x1</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y1</code></em>);</pre>
<p class="since">Since: GIMP 2.8</p>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_flip (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x0</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y0</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x1</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y1</code></em>);</pre>
<p>Flip the specified item around a given line.</p>
<p>This procedure flips the specified item. If a selection exists and
the item is a drawable , the portion of the drawable which lies
under the selection is cut from the drawable and made into a
floating selection which is then flipped. The axis to flip around is
specified by specifying two points from that line. The return value
is the ID of the flipped item. If there was no selection or the item
is not a drawable, this will be equal to the item ID supplied as
input. Otherwise, this will be the newly created and flipped
drawable.
This procedure is affected by the following context setters:
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-interpolation" title="gimp_context_set_interpolation ()"><code class="function">gimp_context_set_interpolation()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-direction" title="gimp_context_set_transform_direction ()"><code class="function">gimp_context_set_transform_direction()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-resize" title="gimp_context_set_transform_resize ()"><code class="function">gimp_context_set_transform_resize()</code></a>.</p>
<div class="refsect3">
<a name="gimp-item-transform-flip.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>item_ID</p></td>
<td class="parameter_description"><p>The affected item.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x0</p></td>
<td class="parameter_description"><p>horz. coord. of one end of axis.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y0</p></td>
<td class="parameter_description"><p>vert. coord. of one end of axis.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x1</p></td>
<td class="parameter_description"><p>horz. coord. of other end of axis.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y1</p></td>
<td class="parameter_description"><p>vert. coord. of other end of axis.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-item-transform-flip.returns"></a><h4>Returns</h4>
<p> The flipped item.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-8.html#api-index-2.8">2.8</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-item-transform-perspective"></a><h3>gimp_item_transform_perspective ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_perspective (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x0</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y0</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x1</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y1</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x2</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y2</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x3</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y3</code></em>);</pre>
<p class="since">Since: GIMP 2.8</p>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_perspective (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x0</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y0</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x1</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y1</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x2</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y2</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x3</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y3</code></em>);</pre>
<p>Perform a possibly non-affine transformation on the specified item.</p>
<p>This procedure performs a possibly non-affine transformation on the
specified item by allowing the corners of the original bounding box
to be arbitrarily remapped to any values. The specified item is
remapped if no selection exists or it is not a drawable. However, if
a selection exists and the item is a drawable, the portion of the
drawable which lies under the selection is cut from the drawable and
made into a floating selection which is then remapped as specified.
The return value is the ID of the remapped item. If there was no
selection or the item is not a drawable, this will be equal to the
item ID supplied as input. Otherwise, this will be the newly created
and remapped drawable. The 4 coordinates specify the new locations
of each corner of the original bounding box. By specifying these
values, any affine transformation (rotation, scaling, translation)
can be affected. Additionally, these values can be specified such
that the resulting transformed item will appear to have been
projected via a perspective transform.
This procedure is affected by the following context setters:
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-interpolation" title="gimp_context_set_interpolation ()"><code class="function">gimp_context_set_interpolation()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-direction" title="gimp_context_set_transform_direction ()"><code class="function">gimp_context_set_transform_direction()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-resize" title="gimp_context_set_transform_resize ()"><code class="function">gimp_context_set_transform_resize()</code></a>.</p>
<div class="refsect3">
<a name="gimp-item-transform-perspective.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>item_ID</p></td>
<td class="parameter_description"><p>The affected item.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x0</p></td>
<td class="parameter_description"><p>The new x coordinate of upper-left corner of original bounding box.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y0</p></td>
<td class="parameter_description"><p>The new y coordinate of upper-left corner of original bounding box.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x1</p></td>
<td class="parameter_description"><p>The new x coordinate of upper-right corner of original bounding box.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y1</p></td>
<td class="parameter_description"><p>The new y coordinate of upper-right corner of original bounding box.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x2</p></td>
<td class="parameter_description"><p>The new x coordinate of lower-left corner of original bounding box.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y2</p></td>
<td class="parameter_description"><p>The new y coordinate of lower-left corner of original bounding box.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x3</p></td>
<td class="parameter_description"><p>The new x coordinate of lower-right corner of original bounding box.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y3</p></td>
<td class="parameter_description"><p>The new y coordinate of lower-right corner of original bounding box.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-item-transform-perspective.returns"></a><h4>Returns</h4>
<p> The newly mapped item.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-8.html#api-index-2.8">2.8</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-item-transform-rotate-simple"></a><h3>gimp_item_transform_rotate_simple ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_rotate_simple (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a class="link" href="libgimp-gimpenums.html#GimpRotationType" title="enum GimpRotationType"><span class="type">GimpRotationType</span></a> rotate_type</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> auto_center</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> center_x</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> center_y</code></em>);</pre>
<p class="since">Since: GIMP 2.8</p>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_rotate_simple (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="../html/libgimpbase-gimpbaseenums.html#GimpRotationType"><span class="type">GimpRotationType</span></a> rotate_type</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> auto_center</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> center_x</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> center_y</code></em>);</pre>
<p>Rotate the specified item about given coordinates through the
specified angle.</p>
<p>This function rotates the specified item. If a selection exists and
the item is a drawable, the portion of the drawable which lies under
the selection is cut from the drawable and made into a floating
selection which is then rotated by the specified amount. The return
value is the ID of the rotated item. If there was no selection or
the item is not a drawable, this will be equal to the item ID
supplied as input. Otherwise, this will be the newly created and
rotated drawable.
This procedure is affected by the following context setters:
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-resize" title="gimp_context_set_transform_resize ()"><code class="function">gimp_context_set_transform_resize()</code></a>.</p>
<div class="refsect3">
<a name="gimp-item-transform-rotate-simple.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>item_ID</p></td>
<td class="parameter_description"><p>The affected item.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>rotate_type</p></td>
<td class="parameter_description"><p>Type of rotation.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>auto_center</p></td>
<td class="parameter_description"><p>Whether to automatically rotate around the selection center.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>center_x</p></td>
<td class="parameter_description"><p>The hor. coordinate of the center of rotation.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>center_y</p></td>
<td class="parameter_description"><p>The vert. coordinate of the center of rotation.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-item-transform-rotate-simple.returns"></a><h4>Returns</h4>
<p> The rotated item.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-8.html#api-index-2.8">2.8</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-item-transform-rotate"></a><h3>gimp_item_transform_rotate ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_rotate (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> angle</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> auto_center</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> center_x</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> center_y</code></em>);</pre>
<p class="since">Since: GIMP 2.8</p>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_rotate (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> angle</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> auto_center</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> center_x</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> center_y</code></em>);</pre>
<p>Rotate the specified item about given coordinates through the
specified angle.</p>
<p>This function rotates the specified item. If a selection exists and
the item is a drawable, the portion of the drawable which lies under
the selection is cut from the drawable and made into a floating
selection which is then rotated by the specified amount. The return
value is the ID of the rotated item. If there was no selection or
the item is not a drawable, this will be equal to the item ID
supplied as input. Otherwise, this will be the newly created and
rotated drawable.
This procedure is affected by the following context setters:
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-interpolation" title="gimp_context_set_interpolation ()"><code class="function">gimp_context_set_interpolation()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-direction" title="gimp_context_set_transform_direction ()"><code class="function">gimp_context_set_transform_direction()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-resize" title="gimp_context_set_transform_resize ()"><code class="function">gimp_context_set_transform_resize()</code></a>.</p>
<div class="refsect3">
<a name="gimp-item-transform-rotate.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>item_ID</p></td>
<td class="parameter_description"><p>The affected item.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>angle</p></td>
<td class="parameter_description"><p>The angle of rotation (radians).</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>auto_center</p></td>
<td class="parameter_description"><p>Whether to automatically rotate around the selection center.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>center_x</p></td>
<td class="parameter_description"><p>The hor. coordinate of the center of rotation.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>center_y</p></td>
<td class="parameter_description"><p>The vert. coordinate of the center of rotation.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-item-transform-rotate.returns"></a><h4>Returns</h4>
<p> The rotated item.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-8.html#api-index-2.8">2.8</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-item-transform-scale"></a><h3>gimp_item_transform_scale ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_scale (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x0</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y0</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x1</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y1</code></em>);</pre>
<p class="since">Since: GIMP 2.8</p>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_scale (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x0</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y0</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> x1</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> y1</code></em>);</pre>
<p>Scale the specified item.</p>
<p>This procedure scales the specified item. If a selection exists and
the item is a drawable, the portion of the drawable which lies under
the selection is cut from the drawable and made into a floating
selection which is then scaled by the specified amount. The return
value is the ID of the scaled item. If there was no selection or the
item is not a drawable, this will be equal to the item ID supplied
as input. Otherwise, this will be the newly created and scaled
drawable.
This procedure is affected by the following context setters:
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-interpolation" title="gimp_context_set_interpolation ()"><code class="function">gimp_context_set_interpolation()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-direction" title="gimp_context_set_transform_direction ()"><code class="function">gimp_context_set_transform_direction()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-resize" title="gimp_context_set_transform_resize ()"><code class="function">gimp_context_set_transform_resize()</code></a>.</p>
<div class="refsect3">
<a name="gimp-item-transform-scale.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>item_ID</p></td>
<td class="parameter_description"><p>The affected item.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x0</p></td>
<td class="parameter_description"><p>The new x coordinate of the upper-left corner of the scaled region.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y0</p></td>
<td class="parameter_description"><p>The new y coordinate of the upper-left corner of the scaled region.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x1</p></td>
<td class="parameter_description"><p>The new x coordinate of the lower-right corner of the scaled region.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y1</p></td>
<td class="parameter_description"><p>The new y coordinate of the lower-right corner of the scaled region.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-item-transform-scale.returns"></a><h4>Returns</h4>
<p> The scaled item.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-8.html#api-index-2.8">2.8</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-item-transform-shear"></a><h3>gimp_item_transform_shear ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_shear (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a class="link" href="libgimp-gimpenums.html#GimpOrientationType" title="enum GimpOrientationType"><span class="type">GimpOrientationType</span></a> shear_type</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> magnitude</code></em>);</pre>
<p class="since">Since: GIMP 2.8</p>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_shear (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="../html/libgimpbase-gimpbaseenums.html#GimpOrientationType"><span class="type">GimpOrientationType</span></a> shear_type</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> magnitude</code></em>);</pre>
<p>Shear the specified item about its center by the specified
magnitude.</p>
<p>This procedure shears the specified item. If a selection exists and
the item is a drawable, the portion of the drawable which lies under
the selection is cut from the drawable and made into a floating
selection which is then sheard by the specified amount. The return
value is the ID of the sheard item. If there was no selection or the
item is not a drawable, this will be equal to the item ID supplied
as input. Otherwise, this will be the newly created and sheard
drawable. The shear type parameter indicates whether the shear will
be applied horizontally or vertically. The magnitude can be either
positive or negative and indicates the extent (in pixels) to shear
by.
This procedure is affected by the following context setters:
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-interpolation" title="gimp_context_set_interpolation ()"><code class="function">gimp_context_set_interpolation()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-direction" title="gimp_context_set_transform_direction ()"><code class="function">gimp_context_set_transform_direction()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-resize" title="gimp_context_set_transform_resize ()"><code class="function">gimp_context_set_transform_resize()</code></a>.</p>
<div class="refsect3">
<a name="gimp-item-transform-shear.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>item_ID</p></td>
<td class="parameter_description"><p>The affected item.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>shear_type</p></td>
<td class="parameter_description"><p>Type of shear.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>magnitude</p></td>
<td class="parameter_description"><p>The magnitude of the shear.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-item-transform-shear.returns"></a><h4>Returns</h4>
<p> The sheared item.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-8.html#api-index-2.8">2.8</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-item-transform-2d"></a><h3>gimp_item_transform_2d ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_2d (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> source_x</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> source_y</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> scale_x</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> scale_y</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> angle</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> dest_x</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> dest_y</code></em>);</pre>
<p class="since">Since: GIMP 2.8</p>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_2d (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> source_x</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> source_y</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> scale_x</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> scale_y</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> angle</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> dest_x</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> dest_y</code></em>);</pre>
<p>Transform the specified item in 2d.</p>
<p>This procedure transforms the specified item. If a selection exists
and the item is a drawable, the portion of the drawable which lies
under the selection is cut from the drawable and made into a
floating selection which is then transformed. The transformation is
done by scaling the image by the x and y scale factors about the
point (source_x, source_y), then rotating around the same point,
then translating that point to the new position (dest_x, dest_y).
The return value is the ID of the rotated drawable. If there was no
selection or the item is not a drawable, this will be equal to the
item ID supplied as input. Otherwise, this will be the newly created
and transformed drawable.
This procedure is affected by the following context setters:
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-interpolation" title="gimp_context_set_interpolation ()"><code class="function">gimp_context_set_interpolation()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-direction" title="gimp_context_set_transform_direction ()"><code class="function">gimp_context_set_transform_direction()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-resize" title="gimp_context_set_transform_resize ()"><code class="function">gimp_context_set_transform_resize()</code></a>.</p>
<div class="refsect3">
<a name="gimp-item-transform-2d.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>item_ID</p></td>
<td class="parameter_description"><p>The affected item.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>source_x</p></td>
<td class="parameter_description"><p>X coordinate of the transformation center.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>source_y</p></td>
<td class="parameter_description"><p>Y coordinate of the transformation center.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>scale_x</p></td>
<td class="parameter_description"><p>Amount to scale in x direction.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>scale_y</p></td>
<td class="parameter_description"><p>Amount to scale in y direction.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>angle</p></td>
<td class="parameter_description"><p>The angle of rotation (radians).</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dest_x</p></td>
<td class="parameter_description"><p>X coordinate of where the center goes.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dest_y</p></td>
<td class="parameter_description"><p>Y coordinate of where the center goes.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-item-transform-2d.returns"></a><h4>Returns</h4>
<p> The transformed item.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-8.html#api-index-2.8">2.8</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gimp-item-transform-matrix"></a><h3>gimp_item_transform_matrix ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_matrix (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_0_0</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_0_1</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_0_2</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_1_0</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_1_1</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_1_2</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_2_0</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_2_1</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_2_2</code></em>);</pre>
<p class="since">Since: GIMP 2.8</p>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gint32"><span class="returnvalue">gint32</span></a>
gimp_item_transform_matrix (<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> item_ID</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_0_0</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_0_1</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_0_2</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_1_0</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_1_1</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_1_2</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_2_0</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_2_1</code></em>,
<em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> coeff_2_2</code></em>);</pre>
<p>Transform the specified item in 2d.</p>
<p>This procedure transforms the specified item. If a selection exists
and the item is a drawable, the portion of the drawable which lies
under the selection is cut from the drawable and made into a
floating selection which is then transformed. The transformation is
done by assembling a 3x3 matrix from the coefficients passed. The
return value is the ID of the transformed item. If there was no
selection or the item is not a drawable, this will be equal to the
item ID supplied as input. Otherwise, this will be the newly created
and transformed drawable.
This procedure is affected by the following context setters:
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-interpolation" title="gimp_context_set_interpolation ()"><code class="function">gimp_context_set_interpolation()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-direction" title="gimp_context_set_transform_direction ()"><code class="function">gimp_context_set_transform_direction()</code></a>,
<a class="link" href="libgimp-gimpcontext.html#gimp-context-set-transform-resize" title="gimp_context_set_transform_resize ()"><code class="function">gimp_context_set_transform_resize()</code></a>.</p>
<div class="refsect3">
<a name="gimp-item-transform-matrix.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>item_ID</p></td>
<td class="parameter_description"><p>The affected item.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>coeff_0_0</p></td>
<td class="parameter_description"><p>coefficient (0,0) of the transformation matrix.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>coeff_0_1</p></td>
<td class="parameter_description"><p>coefficient (0,1) of the transformation matrix.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>coeff_0_2</p></td>
<td class="parameter_description"><p>coefficient (0,2) of the transformation matrix.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>coeff_1_0</p></td>
<td class="parameter_description"><p>coefficient (1,0) of the transformation matrix.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>coeff_1_1</p></td>
<td class="parameter_description"><p>coefficient (1,1) of the transformation matrix.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>coeff_1_2</p></td>
<td class="parameter_description"><p>coefficient (1,2) of the transformation matrix.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>coeff_2_0</p></td>
<td class="parameter_description"><p>coefficient (2,0) of the transformation matrix.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>coeff_2_1</p></td>
<td class="parameter_description"><p>coefficient (2,1) of the transformation matrix.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>coeff_2_2</p></td>
<td class="parameter_description"><p>coefficient (2,2) of the transformation matrix.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gimp-item-transform-matrix.returns"></a><h4>Returns</h4>
<p> The transformed item.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-8.html#api-index-2.8">2.8</a></p>
</div>
</div>
<div class="refsect1">
@ -232,6 +780,6 @@ gimp_item_transform_matrix (<em class="parameter"><code><a href="/usr/share/gtk-
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