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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | <html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>goocanvas.Path</title><link rel="stylesheet" type="text/css" href="style.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="PyGooCanvas Reference Manual"><link rel="up" href="pygoocanvas-std-items.html" title="PyGooCanvas Standard Canvas Items Reference"><link rel="prev" href="class-canvas-group.html" title="goocanvas.Group"><link rel="next" href="class-canvas-polyline.html" title="goocanvas.Polyline"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">goocanvas.Path</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="class-canvas-group.html">Prev</a> </td><th width="60%" align="center">PyGooCanvas Standard Canvas Items Reference</th><td width="20%" align="right"> <a accesskey="n" href="class-canvas-polyline.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="class-canvas-path"></a><div class="titlepage"></div><div class="refnamediv"><h2>goocanvas.Path</h2><p>goocanvas.Path — A Path item.</p></div><div class="refsect1"><a name="idp46888209224096"></a><h2>Synopsis</h2><table bgcolor="#D0E0F0" width="100%"><tr><td><pre class="classsynopsis">class <span class="ooclass"><span class="classname">goocanvas.Path</span></span>(<span class="ooclass"><span class="classname">goocanvas.ItemSimple</span></span>):
<code class="constructorsynopsis"> <span class="methodname">goocanvas.Path</span>(<span class="methodparam"><span class="parameter"><strong class="parameter"><code>properties</code></strong></span><span class="initializer">=None</span></span>)</code><br></pre></td></tr></table></div><div class="refsect1"><a name="idp46888209229568"></a><h2>Ancestry</h2><pre class="synopsis">+-- <a
href="../pygobject/class-gobject.html"
>gobject.GObject</a>
+-- goocanvas.ItemSimple
+-- goocanvas.Path
</pre></div><div class="refsect1"><a name="properties-goocanvaspath"></a><h2>goocanvas.Path Properties</h2><div class="blockquote"><table width="100%" border="0" bgcolor="#E0E0E0"><tr><td valign="top"><div class="informaltable"><table width="100%" border="0"><colgroup><col width="1in"><col width="1in"><col width="3.5in"></colgroup><tbody><tr valign="top"><td valign="top">"data"</td><td valign="top">Write</td><td valign="top">The sequence of path commands, specified as a string using the same syntax as in the
<a class="ulink" href="http://www.w3.org/Graphics/SVG/" target="_top">Scalable Vector Graphics (SVG)</a>
path element. Default value: NULL.
</td></tr><tr valign="top"><td valign="top">"height"</td><td valign="top">Read/Write</td><td valign="top">The height of the path. Allowed values: >= 0. Default value: 0.</td></tr><tr valign="top"><td valign="top">"width"</td><td valign="top">Read/Write</td><td valign="top">The width of the path. Allowed values: >= 0. Default value: 0.</td></tr><tr valign="top"><td valign="top">"x"</td><td valign="top">Read/Write</td><td valign="top">The x coordinate of the path. Default value: 0.</td></tr><tr valign="top"><td valign="top">"y"</td><td valign="top">Read/Write</td><td valign="top">The y coordinate of the path. Default value: 0.</td></tr></tbody></table></div></td></tr></table></div></div><div class="refsect1"><a name="idp46888209251008"></a><h2>Implemented Interfaces</h2><p>
<code class="classname">goocanvas.Path</code>
implements
<code class="classname">goocanvas.Item</code>
</p></div><div class="refsect1"><a name="idp46888209254048"></a><h2>Description</h2><code class="classname">goocanvas.Path</code>
represents a path item, which is a series of one or more lines, bezier curves, or elliptical arcs.
It is a subclass of
<code class="classname">goocanvas.ItemSimple</code>
and so inherits all of the style properties such as "stroke-color", "fill-color" and "line-width".
It also implements the <code class="classname">goocanvas.Item</code>
interface, so you can use the <code class="classname">goocanvas.Item</code>
functions such as <code class="methodname">goocanvas.Item.raise_()</code>
and <code class="methodname">goocanvas.Item.rotate()</code><code class="classname">goocanvas.Path</code> uses the same path specification strings
as the Scalable Vector Graphics (SVG) path element. For details see the
<a class="ulink" href="http://www.w3.org/Graphics/SVG/" target="_top">SVG Specification</a>
To respond to events such as mouse clicks on the path you must connect to the signal handlers of the corresponding
<code class="classname">goocanvas.PathView</code> object.
(See <code class="methodname">goocanvas.CanvasView.get_item_view()</code>
and <code class="classname">goocanvas.CanvasView</code> signal
"item-view-created")
</div><div class="refsect1"><a name="constructor-canvas-path"></a><h2>Constructor</h2><pre class="programlisting"><code class="constructorsynopsis"> <span class="methodname">goocanvas.Path</span>(<span class="methodparam"><span class="parameter"><strong class="parameter"><code>properties</code></strong></span><span class="initializer">=None</span></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><strong class="parameter"><code>properties</code></strong>:</span></p></td><td>A comma separated list of properties.</td></tr><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span>:</span></p></td><td>A new
<code class="classname">goocanvas.Path</code>
</td></tr></tbody></table><p>
Creates a new canvas path item.
</p><p>
Here's an example showing how to create a red line from (20,20) to (40,40):
</p><pre class="programlisting">
path = goocanvas.Path(data="M 20 20 L 40 40", stroke_color="red")
</pre><p>
This example creates a cubic bezier curve from (20,100) to (100,100) with the control points at (20,50) and (100,50):
</p><pre class="programlisting">
path = goocanvas.Path(data="M20,100 C20,50 100,50 100,100", stroke_color="blue")
</pre><p>
This example uses an elliptical arc to create a filled circle with one quarter missing:
</p><pre class="programlisting">
path = goocanvas.Path(data="M200,500 h-150 a150,150 0 1,0 150,-150 z", fill_color="red", stroke_color="blue", line_width=5.0,)
</pre></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="class-canvas-group.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="pygoocanvas-std-items.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="class-canvas-polyline.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">goocanvas.Group </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> goocanvas.Polyline</td></tr></table></div></body></html>
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