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</div><div class="twikiRevInfo"><span class="twikiGrayText"><span class="twikiToolbarElem">Cinelerra.CompositorZoomControl</span><span class="twikiToolbarElem">r1.2 - 23 Jan 2004 - 14:46 - <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a></span><span class="twikiToolbarElem"><a href="#TopicEnd">topic&nbsp;end</a></span></span></div></div>
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<h3><a name="The_Compositor_Zoom_Control"> </a><a name="_The_Compositor_Zoom_Control_"> </a> <img src="../../../pub/Cinelerra/CinelerraImages/button_compositor_zoom.png" alt="button_compositor_zoom.png" /> The <a class="twikiLink" href="CompositorZoomControl">Compositor Zoom Control</a> </h3>
<p />
Zoom Video, zooms video in and out in the same way as the zoom option on the menu or the zoom control on the bottom control panel. In zoom mode :
<ul>
<li> clicking in the video output zooms in.
</li>
<li> ctrl-clicking in the video output zooms out.
</li>
<li> If you have a wheel mouse, rotating the wheel zooms in or out too
</li>
</ul>
In addition to the compositor <img src="../../../pub/Cinelerra/CinelerraImages/button_compositor_zoom.png" alt="button_compositor_zoom.png" /> Zoom View Tool, the compositing window has a  pulldown menu on the bottom of the window that offers the following zoom options:
<ul>
<li> <code><b>Auto</b></code> the video is zoomed to match the <a class="twikiLink" href="Compositor">compositor</a> window size as closely as possible.
</li>
<li> <code><b>Zoom</b></code> the video is zoomed a power of 2 and scrollbars can be used to scroll around the output. 
</li>
</ul>
<p />
When the video is zoomed bigger than the window size, not only do scrollbars scan around it but middle mouse button dragging in the video output scans around it. This is exactly when The Gimp does.
<p />
<img src="../../../pub/TWiki/TWikiDocGraphics/tip.gif" border="0" alt="TIP" width="16" height="16" /> Zooming in or out with the zoom tool does not change the rendered output, it's merely for scrutinizing video or fitting it in the desktop.
<p />
<img src="../../../pub/TWiki/TWikiDocGraphics/warning.gif" border="0" alt="ALERT!" width="16" height="16" /> Playing video on the compositor when zoomed to any size other that 100% (<em>The original size!</em>) requires cinelerra to do extra processing steps. This could affect the performance on <a class="twikiLink" href="HardwareRequirements">slower systems</a>. 
<p />
<p />
-- <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a> - 23 Jan 2004 <em>from <a class="twikiLink" href="SecretsOfCinelerra">SecretsOfCinelerra</a></em>
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<a name="Actions"> </a><span class="twikiHidden"><br /></span><div class="twikiTopicAction"><a href="http://www.ftconsult.com/twiki/bin/edit/Cinelerra/CompositorZoomControl?t=1129907611"><b>Edit</b></a> <span class="twikiSeparator">|</span> <a href="http://www.ftconsult.com/twiki/bin/attach/Cinelerra/CompositorZoomControl">Attach image or document</a> <span class="twikiSeparator">|</span> <a href="http://www.ftconsult.com/twiki/bin/view/Cinelerra/CompositorZoomControl?skin=print.pattern">Printable version</a> <span class="twikiSeparator">|</span> <a href="http://www.ftconsult.com/twiki/bin/view/Cinelerra/CompositorZoomControl?raw=on">Raw text</a> <span class="twikiSeparator">|</span> <a href="http://www.ftconsult.com/twiki/bin/oops/Cinelerra/CompositorZoomControl?template=oopsmore&param1=1.2&param2=1.2">More topic actions</a><br />Revisions:  | r1.2 | <a href="http://www.ftconsult.com/twiki/bin/rdiff/Cinelerra/CompositorZoomControl?rev1=1.2&rev2=1.1">&gt;</a> | <a href="http://www.ftconsult.com/twiki/bin/view/Cinelerra/CompositorZoomControl?rev=1.1">r1.1</a> <span class="twikiSeparator">|</span> <a href="../../rdiff/Cinelerra/CompositorZoomControl">Total page history</a> <span class="twikiSeparator">|</span> <a href="http://www.ftconsult.com/twiki/bin/search/Cinelerra/SearchResult?scope=text&regex=on&excludetopic=CompositorZoomControl&search=Compositor%20*Zoom%20*Control%5B%5EA-Za-z0-9%5D">Backlinks</a></div>
<div class="twikiTopicInfo twikiRevInfo twikiGrayText twikiMoved"><i>Cinelerra.CompositorZoomControl moved from Cinelerra.ZoomControl on 02 Jan 2004 - 02:39 by <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a> </i> - <a title="Click to move topic back to previous location, with option to change references." href="http://www.ftconsult.com/twiki/bin/rename/Cinelerra/CompositorZoomControl?newweb=Cinelerra&newtopic=ZoomControl&confirm=on">put it back</a></div>
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