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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>Interactive navigation — Matplotlib 2.0.2.post4416.dev0+g1df513f documentation</title>

type="text/css" />

type="text/css" />

var DOCUMENTATION_OPTIONS = {

URL_ROOT: '../',

VERSION: '2.0.2.post4416.dev0+g1df513f',

COLLAPSE_INDEX: false,

FILE_SUFFIX: '.html',

HAS_SOURCE: true,

SOURCELINK_SUFFIX: '.txt'

};

</script>

title="Search within Matplotlib 2.0.2.post4416.dev0+g1df513f documentation"

href="../_static/opensearch.xml"/>

</head>

<body>

</map>

</div>

<h3>Navigation</h3>

<ul>

<a href="../genindex.html" title="General Index"

accesskey="I">index</a></li>

<a href="../py-modindex.html" title="Python Module Index"

>modules</a> |</li>

<a href="shell.html" title="Using matplotlib in a python shell"

accesskey="N">next</a> |</li>

<a href="interactive.html" title="Interactive plots"

accesskey="P">previous</a> |</li>

<li><a href="../gallery/index.html">examples</a>| </li>

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<li><a href="../api/pyplot_summary.html">pyplot</a>| </li>

<li><a href="index.html" >User’s Guide</a> »</li>

<li><a href="interactive.html" accesskey="U">Interactive plots</a> »</li>

</ul>

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<h3><a href="../contents.html">Table Of Contents</a></h3>

<ul>

<li><a class="reference internal" href="#">Interactive navigation</a><ul>

<li><a class="reference internal" href="#navigation-keyboard-shortcuts">Navigation Keyboard Shortcuts</a></li>

</ul>

</li>

</ul>

<h3>Related Topics</h3>

<ul>

<li><a href="../contents.html">Documentation overview</a><ul>

<li><a href="index.html">User’s Guide</a><ul>

<li><a href="interactive.html">Interactive plots</a><ul>

<li>Previous: <a href="interactive.html" title="previous chapter">Interactive plots</a></li>

<li>Next: <a href="shell.html" title="next chapter">Using matplotlib in a python shell</a></li>

</ul></li>

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</div>

<li><a href="../_sources/users/navigation_toolbar.rst.txt"

rel="nofollow">Show Source</a></li>

</ul>

</div>

<h3>Quick search</h3>

</form>

</div>

</div>

<span id="navigation-toolbar"></span><h1>Interactive navigation<a class="headerlink" href="#interactive-navigation" title="Permalink to this headline">¶</a></h1>

<p>All figure windows come with a navigation toolbar, which can be used

to navigate through the data set. Here is a description of each of

the buttons at the bottom of the toolbar</p>

<dt>The <code class="docutils literal"><span class="pre">Home</span></code>, <code class="docutils literal"><span class="pre">Forward</span></code> and <code class="docutils literal"><span class="pre">Back</span></code> buttons</dt>

<dd>These are akin to a web browser’s home, forward and back controls.

<code class="docutils literal"><span class="pre">Forward</span></code> and <code class="docutils literal"><span class="pre">Back</span></code> are used to navigate back and forth between

previously defined views. They have no meaning unless you have already

navigated somewhere else using the pan and zoom buttons. This is analogous

to trying to click <code class="docutils literal"><span class="pre">Back</span></code> on your web browser before visiting a

new page or <code class="docutils literal"><span class="pre">Forward</span></code> before you have gone back to a page –

nothing happens. <code class="docutils literal"><span class="pre">Home</span></code> always takes you to the

first, default view of your data. Again, all of these buttons should

feel very familiar to any user of a web browser.</dd>

</dl>

<dt>The <code class="docutils literal"><span class="pre">Pan/Zoom</span></code> button</dt>

<dd><p class="first">This button has two modes: pan and zoom. Click the toolbar button

to activate panning and zooming, then put your mouse somewhere

over an axes. Press the left mouse button and hold it to pan the

figure, dragging it to a new position. When you release it, the

data under the point where you pressed will be moved to the point

where you released. If you press ‘x’ or ‘y’ while panning the

motion will be constrained to the x or y axis, respectively. Press

the right mouse button to zoom, dragging it to a new position.

The x axis will be zoomed in proportionately to the rightward

movement and zoomed out proportionately to the leftward movement.

The same is true for the y axis and up/down motions. The point under your

mouse when you begin the zoom remains stationary, allowing you to

zoom in or out around that point as much as you wish. You can use the

modifier keys ‘x’, ‘y’ or ‘CONTROL’ to constrain the zoom to the x

axis, the y axis, or aspect ratio preserve, respectively.</p>

<p class="last">With polar plots, the pan and zoom functionality behaves

differently. The radius axis labels can be dragged using the left

mouse button. The radius scale can be zoomed in and out using the

right mouse button.</p>

</dd>

</dl>

<dt>The <code class="docutils literal"><span class="pre">Zoom-to-rectangle</span></code> button</dt>

<dd>Click this toolbar button to activate this mode. Put your mouse

somewhere over an axes and press the left mouse button. Drag the

mouse while holding the button to a new location and release. The

axes view limits will be zoomed to the rectangle you have defined.

There is also an experimental ‘zoom out to rectangle’ in this mode

with the right button, which will place your entire axes in the

region defined by the zoom out rectangle.</dd>

</dl>

<dt>The <code class="docutils literal"><span class="pre">Subplot-configuration</span></code> button</dt>

<dd>Use this tool to configure the appearance of the subplot:

you can stretch or compress the left, right, top, or bottom

side of the subplot, or the space between the rows or

space between the columns.</dd>

</dl>

<dt>The <code class="docutils literal"><span class="pre">Save</span></code> button</dt>

<dd>Click this button to launch a file save dialog. You can save

files with the following extensions: <code class="docutils literal"><span class="pre">png</span></code>, <code class="docutils literal"><span class="pre">ps</span></code>, <code class="docutils literal"><span class="pre">eps</span></code>,

</dl>

<span id="key-event-handling"></span><h2>Navigation Keyboard Shortcuts<a class="headerlink" href="#navigation-keyboard-shortcuts" title="Permalink to this headline">¶</a></h2>

<p>The following table holds all the default keys, which can be overwritten by use of your matplotlibrc (#keymap.*).</p>

</colgroup>

<tr class="row-odd"><th class="head">Command</th>

<th class="head">Keyboard Shortcut(s)</th>

</tr>

</thead>

<tr class="row-even"><td>Home/Reset</td>

</tr>

<td><strong>c</strong> or <strong>left arrow</strong> or <strong>backspace</strong></td>

</tr>

<tr class="row-even"><td>Forward</td>

<td><strong>v</strong> or <strong>right arrow</strong></td>

</tr>

</tr>

</tr>

</tr>

<tr class="row-even"><td>Toggle fullscreen</td>

</tr>

<tr class="row-odd"><td>Close plot</td>

</tr>

<tr class="row-even"><td>Close all plots</td>

<td><strong>shift</strong> + <strong>w</strong></td>

</tr>

<tr class="row-odd"><td>Constrain pan/zoom to x axis</td>

<td>hold <strong>x</strong> when panning/zooming with mouse</td>

</tr>

<tr class="row-even"><td>Constrain pan/zoom to y axis</td>

<td>hold <strong>y</strong> when panning/zooming with mouse</td>

</tr>

<tr class="row-odd"><td>Preserve aspect ratio</td>

<td>hold <strong>CONTROL</strong> when panning/zooming with mouse</td>

</tr>

<tr class="row-even"><td>Toggle major grids</td>

<td><strong>g</strong> when mouse is over an axes</td>

</tr>

<tr class="row-odd"><td>Toggle minor grids</td>

<td><strong>G</strong> when mouse is over an axes</td>

</tr>

<tr class="row-even"><td>Toggle x axis scale (log/linear)</td>

<td><strong>L</strong> or <strong>k</strong> when mouse is over an axes</td>

</tr>

<tr class="row-odd"><td>Toggle y axis scale (log/linear)</td>

<td><strong>l</strong> when mouse is over an axes</td>

</tr>

</tbody>

</table>

<p>If you are using <code class="xref py py-mod docutils literal"><span class="pre">matplotlib.pyplot</span></code> the toolbar will be created

automatically for every figure. If you are writing your own user

interface code, you can add the toolbar as a widget. The exact syntax

depends on your UI, but we have examples for every supported UI in the

<code class="docutils literal"><span class="pre">matplotlib/examples/user_interfaces</span></code> directory. Here is some

example code for GTK:</p>

<div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">gtk</span>

<span class="kn">from</span> <span class="nn">matplotlib.figure</span> <span class="k">import</span> <span class="n">Figure</span>

<span class="kn">from</span> <span class="nn">matplotlib.backends.backend_gtkagg</span> <span class="k">import</span> <span class="n">FigureCanvasGTKAgg</span> <span class="k">as</span> <span class="n">FigureCanvas</span>

<span class="kn">from</span> <span class="nn">matplotlib.backends.backend_gtkagg</span> <span class="k">import</span> <span class="n">NavigationToolbar2GTKAgg</span> <span class="k">as</span> <span class="n">NavigationToolbar</span>

<span class="n">win</span> <span class="o">=</span> <span class="n">gtk</span><span class="o">.</span><span class="n">Window</span><span class="p">()</span>

<span class="n">win</span><span class="o">.</span><span class="n">connect</span><span class="p">(</span><span class="s2">"destroy"</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">x</span><span class="p">:</span> <span class="n">gtk</span><span class="o">.</span><span class="n">main_quit</span><span class="p">())</span>

<span class="n">win</span><span class="o">.</span><span class="n">set_default_size</span><span class="p">(</span><span class="mi">400</span><span class="p">,</span><span class="mi">300</span><span class="p">)</span>

<span class="n">win</span><span class="o">.</span><span class="n">set_title</span><span class="p">(</span><span class="s2">"Embedding in GTK"</span><span class="p">)</span>

<span class="n">fig</span> <span class="o">=</span> <span class="n">Figure</span><span class="p">(</span><span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span><span class="mi">4</span><span class="p">),</span> <span class="n">dpi</span><span class="o">=</span><span class="mi">100</span><span class="p">)</span>

<span class="n">ax</span> <span class="o">=</span> <span class="n">fig</span><span class="o">.</span><span class="n">add_subplot</span><span class="p">(</span><span class="mi">111</span><span class="p">)</span>

<span class="n">canvas</span> <span class="o">=</span> <span class="n">FigureCanvas</span><span class="p">(</span><span class="n">fig</span><span class="p">)</span> <span class="c1"># a gtk.DrawingArea</span>

<span class="n">vbox</span><span class="o">.</span><span class="n">pack_start</span><span class="p">(</span><span class="n">canvas</span><span class="p">)</span>

<span class="n">toolbar</span> <span class="o">=</span> <span class="n">NavigationToolbar</span><span class="p">(</span><span class="n">canvas</span><span class="p">,</span> <span class="n">win</span><span class="p">)</span>

<span class="n">vbox</span><span class="o">.</span><span class="n">pack_start</span><span class="p">(</span><span class="n">toolbar</span><span class="p">,</span> <span class="kc">False</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>

</pre></div>

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