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<a href="pyfeyn-module.html">Package&nbsp;pyfeyn</a> ::
<a href="pyfeyn.points-module.html">Module&nbsp;points</a> ::
Class&nbsp;Point
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class Point</h1><br /><br />
<center>
<center> <map id="uml_class_diagram_for_classdoc_22" name="uml_class_diagram_for_classdoc_22">
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<hr />
Base class for all pointlike objects in Feynman diagrams.<br /><br />
<!-- ==================== INSTANCE METHODS ==================== -->
<a name="section-InstanceMethods"></a>
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<td align="left"><span class="table-header">Instance Methods</span></td>
<td align="right" valign="top"
><span class="options">[<a href="#section-InstanceMethods"
class="privatelink" onclick="toggle_private();"
>hide private</a>]</span></td>
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<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">x</span>,
<span class="summary-sig-arg">y</span>,
<span class="summary-sig-arg">blob</span>=<span class="summary-sig-default">None</span>)</span>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#addLabel" class="summary-sig-name">addLabel</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">text</span>,
<span class="summary-sig-arg">displace</span>=<span class="summary-sig-default">0.3</span>,
<span class="summary-sig-arg">angle</span>=<span class="summary-sig-default">0</span>)</span><br />
Add a LaTeX label to this point, either via parameters or actually
as a PointLable object.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#removeLabels" class="summary-sig-name">removeLabels</a>(<span class="summary-sig-arg">self</span>)</span>
</td>
</tr>
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<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#draw" class="summary-sig-name">draw</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">canvas</span>)</span><br />
Do nothing (abstract base class).
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#getPath" class="summary-sig-name">getPath</a>(<span class="summary-sig-arg">self</span>)</span><br />
Return the path of the attached blob path, if there is one,
otherwise None.
</td>
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<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#midpoint" class="summary-sig-name">midpoint</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">otherpoint</span>)</span><br />
Return the point midway between this point and the argument.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#distance" class="summary-sig-name">distance</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">otherpoint</span>)</span><br />
Calculate the distance between this point and the argument.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#intercept" class="summary-sig-name">intercept</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">otherpoint</span>)</span><br />
Return the y-intercept of the straight line defined by this point
and the argument.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#tangent" class="summary-sig-name">tangent</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">otherpoint</span>)</span><br />
Return the tangent of the straight line defined by this point and
the argument.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#arg" class="summary-sig-name">arg</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">otherpoint</span>)</span><br />
Return the angle between the x-axis and the straight line defined
by this point and the argument (cf.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#getBlob" class="summary-sig-name">getBlob</a>(<span class="summary-sig-arg">self</span>)</span><br />
Get the attached blob.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#setBlob" class="summary-sig-name">setBlob</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">blob</span>)</span><br />
Set the attached blob.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#getX" class="summary-sig-name">getX</a>(<span class="summary-sig-arg">self</span>)</span><br />
Return the x-coordinate of this point.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#setX" class="summary-sig-name">setX</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">x</span>)</span><br />
Set the x-coordinate of this point.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#getY" class="summary-sig-name">getY</a>(<span class="summary-sig-arg">self</span>)</span><br />
Return the y-coordinate of this point.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#setY" class="summary-sig-name">setY</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">y</span>)</span><br />
Set the y-coordinate of this point.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#getXY" class="summary-sig-name">getXY</a>(<span class="summary-sig-arg">self</span>)</span><br />
Return the x and y coordinates of this point as a 2-tuple.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#setXY" class="summary-sig-name">setXY</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">xpos</span>,
<span class="summary-sig-arg">ypos</span>)</span><br />
Set the x and y coordinates of this point.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#x" class="summary-sig-name">x</a>(<span class="summary-sig-arg">self</span>)</span><br />
Alias for getX().
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#y" class="summary-sig-name">y</a>(<span class="summary-sig-arg">self</span>)</span><br />
Alias for getY().
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<code class="summary-type">&nbsp;</code>
</td><td class="summary">
<span class="summary-sig"><a href="pyfeyn.points.Point-class.html#xy" class="summary-sig-name">xy</a>(<span class="summary-sig-arg">self</span>)</span><br />
Alias for getXY().
</td>
</tr>
</table>
<br />
<!-- ==================== METHOD DETAILS ==================== -->
<a name="section-MethodDetails"></a>
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cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
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<tr valign="top">
<td align="left"><span class="table-header">Method Details</span></td>
<td align="right" valign="top"
><span class="options">[<a href="#section-MethodDetails"
class="privatelink" onclick="toggle_private();"
>hide private</a>]</span></td>
</tr>
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</td>
</tr>
</table>
<a name="__init__"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">x</span>,
<span class="sig-arg">y</span>,
<span class="sig-arg">blob</span>=<span class="sig-default">None</span>)</span>
<br /><em class="fname">(Constructor)</em>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
None
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="addLabel"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">addLabel</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">text</span>,
<span class="sig-arg">displace</span>=<span class="sig-default">0.3</span>,
<span class="sig-arg">angle</span>=<span class="sig-default">0</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Add a LaTeX label to this point, either via parameters or actually as
a PointLable object.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="removeLabels"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">removeLabels</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
None
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="draw"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">draw</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">canvas</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Do nothing (abstract base class).
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="getPath"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">getPath</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Return the path of the attached blob path, if there is one, otherwise
None.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="midpoint"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">midpoint</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">otherpoint</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Return the point midway between this point and the argument.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="distance"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">distance</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">otherpoint</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Calculate the distance between this point and the argument.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="intercept"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">intercept</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">otherpoint</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Return the y-intercept of the straight line defined by this point and
the argument.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="tangent"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">tangent</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">otherpoint</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Return the tangent of the straight line defined by this point and the
argument.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="arg"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">arg</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">otherpoint</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Return the angle between the x-axis and the straight line defined by
this point and the argument (cf. complex numbers).
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="getBlob"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">getBlob</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Get the attached blob.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="setBlob"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">setBlob</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">blob</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Set the attached blob.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="getX"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">getX</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Return the x-coordinate of this point.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="setX"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">setX</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">x</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Set the x-coordinate of this point.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="getY"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">getY</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Return the y-coordinate of this point.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="setY"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">setY</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">y</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Set the y-coordinate of this point.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="getXY"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">getXY</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Return the x and y coordinates of this point as a 2-tuple.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="setXY"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">setXY</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">xpos</span>,
<span class="sig-arg">ypos</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Set the x and y coordinates of this point.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="x"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">x</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Alias for getX().
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="y"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">y</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Alias for getY().
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
<a name="xy"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">xy</span>(<span class="sig-arg">self</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;</span
></td>
</table>
Alias for getXY().
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
</div>
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