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Next: <a href="Patch-Properties.html#Patch-Properties" accesskey="n" rel="next">Patch Properties</a>, Previous: <a href="Text-Properties.html#Text-Properties" accesskey="p" rel="prev">Text Properties</a>, Up: <a href="Graphics-Object-Properties.html#Graphics-Object-Properties" accesskey="u" rel="up">Graphics Object Properties</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Image-Properties-1"></a>
<h4 class="subsubsection">15.3.3.6 Image Properties</h4>
<a name="index-image-properties"></a>
<p>The <code>image</code> properties are:
</p>
<dl compact="compact">
<dd>
<a name="XREFimage_005f_005fmodified_005f_005f"></a><a name="index-image-_005f_005fmodified_005f_005f"></a>
</dd>
<dt><code>__modified__</code>: <code>"off"</code> | {<code>"on"</code>}</dt>
<dd>
<a name="XREFimagealphadata"></a><a name="index-image-alphadata"></a>
</dd>
<dt><code>alphadata</code>: scalar | matrix, def. <code>1</code></dt>
<dd><p>Transparency is not yet implemented for image objects. <code>alphadata</code> is unused.
</p>
<a name="XREFimagealphadatamapping"></a><a name="index-image-alphadatamapping"></a>
</dd>
<dt><code>alphadatamapping</code>: <code>"direct"</code> | {<code>"none"</code>} | <code>"scaled"</code></dt>
<dd><p>Transparency is not yet implemented for image objects. <code>alphadatamapping</code> is unused.
</p>
<a name="XREFimagebeingdeleted"></a><a name="index-image-beingdeleted"></a>
</dd>
<dt><code>beingdeleted</code>: {<code>"off"</code>} | <code>"on"</code></dt>
<dd>
<a name="XREFimagebusyaction"></a><a name="index-image-busyaction"></a>
</dd>
<dt><code>busyaction</code>: <code>"cancel"</code> | {<code>"queue"</code>}</dt>
<dd>
<a name="XREFimagebuttondownfcn"></a><a name="index-image-buttondownfcn"></a>
</dd>
<dt><code>buttondownfcn</code>: string | function handle, def. <code>[](0x0)</code></dt>
<dd><p>For information on how to write graphics listener functions see <a href="Callbacks.html#Callbacks">Callbacks section<!-- /@w --></a>.
</p>
<a name="XREFimagecdata"></a><a name="index-image-cdata"></a>
</dd>
<dt><code>cdata</code>: matrix, def. 64-by-64 double</dt>
<dd>
<a name="XREFimagecdatamapping"></a><a name="index-image-cdatamapping"></a>
</dd>
<dt><code>cdatamapping</code>: {<code>"direct"</code>} | <code>"scaled"</code></dt>
<dd>
<a name="XREFimagechildren"></a><a name="index-image-children"></a>
</dd>
<dt><code>children</code> (read-only): vector of graphics handles, def. <code>[](0x1)</code></dt>
<dd><p><code>children</code> is unused.
</p>
<a name="XREFimageclipping"></a><a name="index-image-clipping"></a>
</dd>
<dt><code>clipping</code>: <code>"off"</code> | {<code>"on"</code>}</dt>
<dd><p>If <code>clipping</code> is <code>"on"</code>, the image is clipped in its parent axes limits.
</p>
<a name="XREFimagecreatefcn"></a><a name="index-image-createfcn"></a>
</dd>
<dt><code>createfcn</code>: string | function handle, def. <code>[](0x0)</code></dt>
<dd><p>Callback function executed immediately after image has been created. Function is set by using default property on root object, e.g., <code>set (0, "defaultimagecreatefcn", 'disp ("image created!")')</code>.
</p>
<p>For information on how to write graphics listener functions see <a href="Callbacks.html#Callbacks">Callbacks section<!-- /@w --></a>.
</p>
<a name="XREFimagedeletefcn"></a><a name="index-image-deletefcn"></a>
</dd>
<dt><code>deletefcn</code>: string | function handle, def. <code>[](0x0)</code></dt>
<dd><p>Callback function executed immediately before image is deleted.
</p>
<p>For information on how to write graphics listener functions see <a href="Callbacks.html#Callbacks">Callbacks section<!-- /@w --></a>.
</p>
<a name="XREFimagedisplayname"></a><a name="index-image-displayname"></a>
</dd>
<dt><code>displayname</code>: string | cell array of strings, def. <code>""</code></dt>
<dd><p>Text for the legend entry corresponding to this image.
</p>
<a name="XREFimagehandlevisibility"></a><a name="index-image-handlevisibility"></a>
</dd>
<dt><code>handlevisibility</code>: <code>"callback"</code> | <code>"off"</code> | {<code>"on"</code>}</dt>
<dd><p>If <code>handlevisibility</code> is <code>"off"</code>, the image’s handle is not visible in its parent’s "children" property.
</p>
<a name="XREFimagehittest"></a><a name="index-image-hittest"></a>
</dd>
<dt><code>hittest</code>: <code>"off"</code> | {<code>"on"</code>}</dt>
<dd>
<a name="XREFimageinterruptible"></a><a name="index-image-interruptible"></a>
</dd>
<dt><code>interruptible</code>: <code>"off"</code> | {<code>"on"</code>}</dt>
<dd>
<a name="XREFimageparent"></a><a name="index-image-parent"></a>
</dd>
<dt><code>parent</code>: graphics handle</dt>
<dd><p>Handle of the parent graphics object.
</p>
<a name="XREFimageselected"></a><a name="index-image-selected"></a>
</dd>
<dt><code>selected</code>: {<code>"off"</code>} | <code>"on"</code></dt>
<dd>
<a name="XREFimageselectionhighlight"></a><a name="index-image-selectionhighlight"></a>
</dd>
<dt><code>selectionhighlight</code>: <code>"off"</code> | {<code>"on"</code>}</dt>
<dd>
<a name="XREFimagetag"></a><a name="index-image-tag"></a>
</dd>
<dt><code>tag</code>: string, def. <code>""</code></dt>
<dd><p>A user-defined string to label the graphics object.
</p>
<a name="XREFimagetype"></a><a name="index-image-type"></a>
</dd>
<dt><code>type</code> (read-only): string</dt>
<dd><p>Class name of the graphics object. <code>type</code> is always <code>"image"</code>
</p>
<a name="XREFimageuicontextmenu"></a><a name="index-image-uicontextmenu"></a>
</dd>
<dt><code>uicontextmenu</code>: graphics handle, def. <code>[](0x0)</code></dt>
<dd><p>Graphics handle of the uicontextmenu object that is currently associated to this image object.
</p>
<a name="XREFimageuserdata"></a><a name="index-image-userdata"></a>
</dd>
<dt><code>userdata</code>: Any Octave data, def. <code>[](0x0)</code></dt>
<dd><p>User-defined data to associate with the graphics object.
</p>
<a name="XREFimagevisible"></a><a name="index-image-visible"></a>
</dd>
<dt><code>visible</code>: <code>"off"</code> | {<code>"on"</code>}</dt>
<dd><p>If <code>visible</code> is <code>"off"</code>, the image is not rendered on screen.
</p>
<a name="XREFimagexdata"></a><a name="index-image-xdata"></a>
</dd>
<dt><code>xdata</code>: two-element vector, def. <code>[1 64]</code></dt>
<dd><p>Two-element vector <code>[xmin xmax]</code> specifying the x coordinates of the first and last columns of the image.
</p>
<p>Setting <code>xdata</code> to the empty matrix ([]) will restore the default value of <code>[1 columns(image)]</code>.
</p>
<a name="XREFimageydata"></a><a name="index-image-ydata"></a>
</dd>
<dt><code>ydata</code>: two-element vector, def. <code>[1 64]</code></dt>
<dd><p>Two-element vector <code>[ymin ymax]</code> specifying the y coordinates of the first and last rows of the image.
</p>
<p>Setting <code>ydata</code> to the empty matrix ([]) will restore the default value of <code>[1 rows(image)]</code>.
</p>
</dd>
</dl>
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Next: <a href="Patch-Properties.html#Patch-Properties" accesskey="n" rel="next">Patch Properties</a>, Previous: <a href="Text-Properties.html#Text-Properties" accesskey="p" rel="prev">Text Properties</a>, Up: <a href="Graphics-Object-Properties.html#Graphics-Object-Properties" accesskey="u" rel="up">Graphics Object Properties</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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