control-freak-ide/misc/pocs/GoJS/api/symbols/Point.html
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<title>GoJS&reg; Point Class</title>
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<!-- ============================== header ================================= -->
<div id="header" class="fineprint mt30">
<b>GoJS</b>&reg; Diagramming Components<br/>version 1.8.5 for JavaScript/HTML<br/>by <a href="https://www.nwoods.com/">Northwoods Software&reg;</a>
</div>
<!-- ============================== class title ============================ -->
<h2 class="classTitle mt30">
Class Point
</h2>
<!-- ============================== class summary ========================== -->
<span class="hideshowall">
<span class="nodetails"><button id="buttonShow">Show Details</button></span>
<span class="details"><button id="buttonHide">Show Summaries</button></span>
</span>
<p class="classsummary">
A Point represents an x- and y-coordinate pair in two-dimensional space.
<p>
Use the static functions <a href="../symbols/Point.html#.parse" class="linkStatic">Point.parse</a> and <a href="../symbols/Point.html#.stringify" class="linkStatic">Point.stringify</a> to convert to and from
a standard string representation that is independent of the current locale.
<p>
When an instance of this class is the value of a property of a <a href="../symbols/GraphObject.html" class="linkConstructor">GraphObject</a> class or <a href="../symbols/Diagram.html" class="linkConstructor">Diagram</a>
or <a href="../symbols/CommandHandler.html" class="linkConstructor">CommandHandler</a> or a <a href="../symbols/Tool.html" class="linkConstructor">Tool</a> class, you should treat the object
as if it were frozen or read-only -- you cannot modify its properties.
This allows the property to return a value without allocating a new instance.
If you need to do your own calculations with the value, call <a href="../symbols/Point.html#copy" class="linkMethod">copy</a> to make
a new instance with the same values that you can modify.
<p>
Many methods modify the object's properties and then return a reference to "this" object.
The only instance method to allocate a new object is the <a href="../symbols/Point.html#copy" class="linkMethod">copy</a> method.
The static <a href="../symbols/Point.html#.parse" class="linkStatic">Point.parse</a> method also allocates a new object.
<p>
The "Debug" implementation of this class is significantly slower than the "Release" implementation,
mostly due to additional error checking.
<p>
You cannot inherit from this class.
</p>
<!-- ============================== constructor summary ==================== -->
<h2 id="constructor" class="summaryCaption"> Constructor <span class="nodetails"> Summary</span><span class="details"> Details</span></h2>
<div class="table-responsive">
<table class="summaryTable table table-bordered table-condensed" summary="A summary of the constructor documented in the class Point.">
<thead>
<tr>
<th scope="col" class="name">Name</th>
<th scope="col" class="description">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name" >
<div class="name">
Point(x, y)
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>The default constructor produces the Point(0,0).<span class="nodetails" id="xconPoint"><a class="morelink" onclick="hst('conPoint')">More...</a></span> <span class="details" id="conPoint">
This constructor may take either zero arguments or two arguments.</span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number=}</span> <b>x</b>
</dt>
<dd>The x value.</dd>
<dt>
<span class="light fixedFont">{number=}</span> <b>y</b>
</dt>
<dd>The y value.</dd>
</dl>
</div>
</td>
</tr>
</tbody>
</table>
</div><!-- class="table-responsive">-->
<!-- ============================== properties summary ===================== -->
<h2 class="summaryCaption">Properties<span class="nodetails"> Summary</span><span class="details"> Details</span></h2>
<div class="table-responsive">
<table class="summaryTable table table-bordered table-condensed" summary="A summary of the properties documented in the class Point.">
<thead>
<tr>
<th scope="col" class="name">Name, Value Type</th>
<th scope="col" class="description">Description</th>
</tr>
</thead>
<tbody>
<tr id="x" >
<td class="name">
<div class="name">
x
</div>
<div class="attributes">
<span class="light">{number}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp <p> -->
<p>Gets or sets the x value of the Point.
</div>
</td>
</tr>
<tr id="y" >
<td class="name">
<div class="name">
y
</div>
<div class="attributes">
<span class="light">{number}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp <p> -->
<p>Gets or sets the y value of the Point.
</div>
</td>
</tr>
</tbody>
</table>
</div><!-- class="table-responsive">-->
<!-- ============================== methods summary ======================== -->
<h2 class="summaryCaption">Method <span class="nodetails"> Summary</span><span class="details"> Details</span></h2>
<div class="table-responsive">
<table class="summaryTable table table-bordered table-condensed" summary="A summary of the methods documented in the class Point.">
<thead>
<tr>
<th scope="col" class="name">Name, Return Type</th>
<th scope="col" class="description">Description</th>
</tr>
</thead>
<tbody>
<tr id="add">
<td class="name">
<div class="name">
add(p)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this point so that is the sum of the current Point and the
x and y co-ordinates of the given Point.<span class="nodetails" id="xmethadd"><a class="morelink" onclick="hst('methadd')">More...</a></span> <span class="details" id="methadd"></span>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#offset" class="linkMethod">offset</a></li>
<li><a href="../symbols/Point.html#subtract" class="linkMethod">subtract</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>p</b>
</dt>
<dd>The Point to add to this Point.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this.</dt>
</dl>
</div>
</td>
</tr>
<tr id="copy">
<td class="name">
<div class="name">
copy()
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Create a copy of this Point, with the same values.
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> </dt>
</dl>
</div>
</td>
</tr>
<tr id="direction">
<td class="name">
<div class="name">
direction(px, py)
</div>
<div class="attributes">
<span class="light">{number}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Compute the angle from this Point to a given (px,py) point.<span class="nodetails" id="xmethdirection"><a class="morelink" onclick="hst('methdirection')">More...</a></span> <span class="details" id="methdirection">
However, if the point is the same as this Point, the direction is zero.</span>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#directionPoint" class="linkMethod">directionPoint</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>px</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>py</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{number}</span> the angle, in degrees, of the line from this Point to the given point.</dt>
</dl>
</div>
</td>
</tr>
<tr id=".direction">
<td class="name">
&lt;static&gt;
<div class="name">
Point.direction(px, py, qx, qy)
</div>
<div class="attributes">
<span class="light">{number}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>This static function returns the angle in degrees of the line from point P to point Q.<span class="nodetails" id="xmethdirection"><a class="morelink" onclick="hst('methdirection')">More...</a></span> <span class="details" id="methdirection"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>px</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>py</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>qx</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>qy</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{number}</span> </dt>
</dl>
</div>
</td>
</tr>
<tr id="directionPoint">
<td class="name">
<div class="name">
directionPoint(p)
</div>
<div class="attributes">
<span class="light">{number}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Compute the angle from this Point to a given Point.<span class="nodetails" id="xmethdirectionPoint"><a class="morelink" onclick="hst('methdirectionPoint')">More...</a></span> <span class="details" id="methdirectionPoint">
However, if the given Point is the same as this Point, the direction is zero.</span>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#direction" class="linkMethod">direction</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>p</b>
</dt>
<dd>the other Point to which to measure the relative angle.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{number}</span> the angle, in degrees, of the line from this Point to the given point.</dt>
</dl>
</div>
</td>
</tr>
<tr id=".distanceLineSegmentSquared">
<td class="name">
&lt;static&gt;
<div class="name">
Point.distanceLineSegmentSquared(px, py, ax, ay, bx, by)
</div>
<div class="attributes">
<span class="light">{number}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>This static function returns the square of the distance from the point P
to the finite line segment from point A to point B.<span class="nodetails" id="xmethdistanceLineSegmentSquared"><a class="morelink" onclick="hst('methdistanceLineSegmentSquared')">More...</a></span> <span class="details" id="methdistanceLineSegmentSquared"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>px</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>py</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>ax</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>ay</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>bx</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>by</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{number}</span> the euclidean distance.</dt>
</dl>
</div>
</td>
</tr>
<tr id="distanceSquared">
<td class="name">
<div class="name">
distanceSquared(px, py)
</div>
<div class="attributes">
<span class="light">{number}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Returns the square of the distance from this point to a given point (px, py).<span class="nodetails" id="xmethdistanceSquared"><a class="morelink" onclick="hst('methdistanceSquared')">More...</a></span> <span class="details" id="methdistanceSquared"></span>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#distanceSquaredPoint" class="linkMethod">distanceSquaredPoint</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>px</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>py</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{number}</span> the square of the euclidean distance.</dt>
</dl>
</div>
</td>
</tr>
<tr id=".distanceSquared">
<td class="name">
&lt;static&gt;
<div class="name">
Point.distanceSquared(px, py, qx, qy)
</div>
<div class="attributes">
<span class="light">{number}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>This static function returns the square of the distance from the point P to the point Q.<span class="nodetails" id="xmethdistanceSquared"><a class="morelink" onclick="hst('methdistanceSquared')">More...</a></span> <span class="details" id="methdistanceSquared"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>px</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>py</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>qx</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>qy</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{number}</span> </dt>
</dl>
</div>
</td>
</tr>
<tr id="distanceSquaredPoint">
<td class="name">
<div class="name">
distanceSquaredPoint(p)
</div>
<div class="attributes">
<span class="light">{number}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Returns the square of the distance from this Point to a given Point.<span class="nodetails" id="xmethdistanceSquaredPoint"><a class="morelink" onclick="hst('methdistanceSquaredPoint')">More...</a></span> <span class="details" id="methdistanceSquaredPoint"></span>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#distanceSquared" class="linkMethod">distanceSquared</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>p</b>
</dt>
<dd>the other Point to measure to.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{number}</span> the square of the euclidean distance.</dt>
</dl>
</div>
</td>
</tr>
<tr id="equals">
<td class="name">
<div class="name">
equals(p)
</div>
<div class="attributes">
<span class="light">{boolean}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Indicates whether the given Point is equal to this Point.<span class="nodetails" id="xmethequals"><a class="morelink" onclick="hst('methequals')">More...</a></span> <span class="details" id="methequals"></span>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#equalTo" class="linkMethod">equalTo</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>p</b>
</dt>
<dd>The Point to compare to the current Point.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{boolean}</span> True if the two Points have identical X and Y values,
false otherwise.</dt>
</dl>
</div>
</td>
</tr>
<tr id="equalTo">
<td class="name">
<div class="name">
equalTo(x, y)
</div>
<div class="attributes">
<span class="light">{boolean}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Indicates whether the given point (x, y) is equal to this Point.<span class="nodetails" id="xmethequalTo"><a class="morelink" onclick="hst('methequalTo')">More...</a></span> <span class="details" id="methequalTo"></span>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#equals" class="linkMethod">equals</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>x</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>y</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{boolean}</span> True if the two Points have identical X and Y values,
false otherwise.</dt>
</dl>
</div>
</td>
</tr>
<tr id="isReal">
<td class="name">
<div class="name">
isReal()
</div>
<div class="attributes">
<span class="light">{boolean}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>True if this Point has X and Y values that are real numbers and not infinity.
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{boolean}</span> </dt>
</dl>
</div>
</td>
</tr>
<tr id="normalize">
<td class="name">
<div class="name">
normalize()
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this Point so that its X and Y values have been normalized to a unit length.<span class="nodetails" id="xmethnormalize"><a class="morelink" onclick="hst('methnormalize')">More...</a></span> <span class="details" id="methnormalize">
However, if this Point is the origin (zero, zero), its length remains zero.</span>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this.</dt>
</dl>
</div>
</td>
</tr>
<tr id="offset">
<td class="name">
<div class="name">
offset(dx, dy)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this point by shifting its values with the given DX and DY offsets.<span class="nodetails" id="xmethoffset"><a class="morelink" onclick="hst('methoffset')">More...</a></span> <span class="details" id="methoffset"></span>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#add" class="linkMethod">add</a></li>
<li><a href="../symbols/Point.html#subtract" class="linkMethod">subtract</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>dx</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>dy</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this.</dt>
</dl>
</div>
</td>
</tr>
<tr id=".parse">
<td class="name">
&lt;static&gt;
<div class="name">
Point.parse(str)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>This static function can be used to read in a <a href="../symbols/Point.html" class="linkConstructor">Point</a> from a string that was produced by <a href="../symbols/Point.html#.stringify" class="linkStatic">Point.stringify</a>.<span class="nodetails" id="xmethparse"><a class="morelink" onclick="hst('methparse')">More...</a></span> <span class="details" id="methparse">
</span><div class="details" id="dmethparse"><p>
<code>go.Point.parse("1 2")</code> produces the Point <code>new go.Point(1, 2)</code>.</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{string}</span> <b>str</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> </dt>
</dl>
</div>
</td>
</tr>
<tr id="projectOntoLineSegment">
<td class="name">
<div class="name">
projectOntoLineSegment(px, py, qx, qy)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
<span class="since" title="since">1.3</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this point to be the closest point to this point that is on a finite line segment.<span class="nodetails" id="xmethprojectOntoLineSegment"><a class="morelink" onclick="hst('methprojectOntoLineSegment')">More...</a></span> <span class="details" id="methprojectOntoLineSegment"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>px</b>
</dt>
<dd>one end of the finite line segment</dd>
<dt>
<span class="light fixedFont">{number}</span> <b>py</b>
</dt>
<dd>one end of the finite line segment</dd>
<dt>
<span class="light fixedFont">{number}</span> <b>qx</b>
</dt>
<dd>the other end of the finite line segment</dd>
<dt>
<span class="light fixedFont">{number}</span> <b>qy</b>
</dt>
<dd>the other end of the finite line segment</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this modified Point</dt>
</dl>
</div>
</td>
</tr>
<tr id="projectOntoLineSegmentPoint">
<td class="name">
<div class="name">
projectOntoLineSegmentPoint(p, q)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
<span class="since" title="since">1.3</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this point to be the closest point to this point that is on a finite line segment.<span class="nodetails" id="xmethprojectOntoLineSegmentPoint"><a class="morelink" onclick="hst('methprojectOntoLineSegmentPoint')">More...</a></span> <span class="details" id="methprojectOntoLineSegmentPoint"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>p</b>
</dt>
<dd>one end of the finite line segment</dd>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>q</b>
</dt>
<dd>the other end of the finite line segment</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this modified Point</dt>
</dl>
</div>
</td>
</tr>
<tr id="rotate">
<td class="name">
<div class="name">
rotate(angle)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this Point so that has been rotated about the origin by the given angle.<span class="nodetails" id="xmethrotate"><a class="morelink" onclick="hst('methrotate')">More...</a></span> <span class="details" id="methrotate"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>angle</b>
</dt>
<dd>an angle in degrees.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this.</dt>
</dl>
</div>
</td>
</tr>
<tr id="scale">
<td class="name">
<div class="name">
scale(sx, sy)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this Point so that its X and Y values have been scaled by given factors along the X and Y axes.<span class="nodetails" id="xmethscale"><a class="morelink" onclick="hst('methscale')">More...</a></span> <span class="details" id="methscale"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>sx</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>sy</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this.</dt>
</dl>
</div>
</td>
</tr>
<tr id="set">
<td class="name">
<div class="name">
set(p)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this Point so that its X and Y values are the same as the given Point.<span class="nodetails" id="xmethset"><a class="morelink" onclick="hst('methset')">More...</a></span> <span class="details" id="methset"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>p</b>
</dt>
<dd>the given Point.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this.</dt>
</dl>
</div>
</td>
</tr>
<tr id="setRectSpot">
<td class="name">
<div class="name">
setRectSpot(r, spot)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this Point so that its X and Y values correspond to a particular <a href="../symbols/Spot.html" class="linkConstructor">Spot</a>
in a given Rect.<span class="nodetails" id="xmethsetRectSpot"><a class="morelink" onclick="hst('methsetRectSpot')">More...</a></span> <span class="details" id="methsetRectSpot">
</span><div class="details" id="dmethsetRectSpot"><p>
The result is meaningless if <a href="../symbols/Spot.html#isNoSpot" class="linkMethod">Spot.isNoSpot</a> is true for the given Spot.</div>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#setSpot" class="linkMethod">setSpot</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Rect.html" class="linkConstructor">Rect</a>}</span> <b>r</b>
</dt>
<dd>the Rect for which we are finding the point.</dd>
<dt>
<span class="light fixedFont">{<a href="../symbols/Spot.html" class="linkConstructor">Spot</a>}</span> <b>spot</b>
</dt>
<dd>the Spot; <a href="../symbols/Spot.html#isSpot" class="linkMethod">Spot.isSpot</a> must be true for this Spot.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this.</dt>
</dl>
</div>
</td>
</tr>
<tr id="setSpot">
<td class="name">
<div class="name">
setSpot(x, y, w, h, spot)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this Point so that its X and Y values correspond to a particular <a href="../symbols/Spot.html" class="linkConstructor">Spot</a>
in a given rectangle.<span class="nodetails" id="xmethsetSpot"><a class="morelink" onclick="hst('methsetSpot')">More...</a></span> <span class="details" id="methsetSpot">
</span><div class="details" id="dmethsetSpot"><p>
The result is meaningless if <a href="../symbols/Spot.html#isNoSpot" class="linkMethod">Spot.isNoSpot</a> is true for the given Spot.</div>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#setRectSpot" class="linkMethod">setRectSpot</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>x</b>
</dt>
<dd>The X coordinate of the Rect for which we are finding the point.</dd>
<dt>
<span class="light fixedFont">{number}</span> <b>y</b>
</dt>
<dd>The Y coordinate of the Rect for which we are finding the point.</dd>
<dt>
<span class="light fixedFont">{number}</span> <b>w</b>
</dt>
<dd>The Width of the Rect for which we are finding the point.</dd>
<dt>
<span class="light fixedFont">{number}</span> <b>h</b>
</dt>
<dd>The Height of the Rect for which we are finding the point.</dd>
<dt>
<span class="light fixedFont">{<a href="../symbols/Spot.html" class="linkConstructor">Spot</a>}</span> <b>spot</b>
</dt>
<dd>the Spot; <a href="../symbols/Spot.html#isSpot" class="linkMethod">Spot.isSpot</a> must be true for this Spot.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this the point of the spot in the rectangle.</dt>
</dl>
</div>
</td>
</tr>
<tr id="setTo">
<td class="name">
<div class="name">
setTo(x, y)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this Point with new X and Y values.<span class="nodetails" id="xmethsetTo"><a class="morelink" onclick="hst('methsetTo')">More...</a></span> <span class="details" id="methsetTo"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>x</b>
</dt>
<dd></dd>
<dt>
<span class="light fixedFont">{number}</span> <b>y</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this.</dt>
</dl>
</div>
</td>
</tr>
<tr id="snapToGrid">
<td class="name">
<div class="name">
snapToGrid(originx, originy, cellwidth, cellheight)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
<span class="since" title="since">1.3</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this point to be at the nearest point on an infinite grid,
given the grid's origin and size of each grid cell.<span class="nodetails" id="xmethsnapToGrid"><a class="morelink" onclick="hst('methsnapToGrid')">More...</a></span> <span class="details" id="methsnapToGrid"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{number}</span> <b>originx</b>
</dt>
<dd>the top-left point of one of the grid cells</dd>
<dt>
<span class="light fixedFont">{number}</span> <b>originy</b>
</dt>
<dd>the top-left point of one of the grid cells</dd>
<dt>
<span class="light fixedFont">{number}</span> <b>cellwidth</b>
</dt>
<dd>the size of each grid cell -- must be a real number larger than zero</dd>
<dt>
<span class="light fixedFont">{number}</span> <b>cellheight</b>
</dt>
<dd>the size of each grid cell -- must be a real number larger than zero</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this modified Point</dt>
</dl>
</div>
</td>
</tr>
<tr id="snapToGridPoint">
<td class="name">
<div class="name">
snapToGridPoint(origin, cellsize)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
<span class="since" title="since">1.3</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this point to be at the nearest point on an infinite grid,
given the grid's origin and size of each grid cell.<span class="nodetails" id="xmethsnapToGridPoint"><a class="morelink" onclick="hst('methsnapToGridPoint')">More...</a></span> <span class="details" id="methsnapToGridPoint"></span>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>origin</b>
</dt>
<dd>the top-left point of one of the grid cells</dd>
<dt>
<span class="light fixedFont">{<a href="../symbols/Size.html" class="linkConstructor">Size</a>}</span> <b>cellsize</b>
</dt>
<dd>the size of each grid cell</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this modified Point</dt>
</dl>
</div>
</td>
</tr>
<tr id=".stringify">
<td class="name">
&lt;static&gt;
<div class="name">
Point.stringify(val)
</div>
<div class="attributes">
<span class="light">{string}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>This static function can be used to write out a <a href="../symbols/Point.html" class="linkConstructor">Point</a> as a string that can be read by <a href="../symbols/Point.html#.parse" class="linkStatic">Point.parse</a>.<span class="nodetails" id="xmethstringify"><a class="morelink" onclick="hst('methstringify')">More...</a></span> <span class="details" id="methstringify">
</span><div class="details" id="dmethstringify"><p>
<code>go.Point.stringify(new go.Point(1, 2))</code> produces the string "1 2".</div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>val</b>
</dt>
<dd></dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{string}</span> </dt>
</dl>
</div>
</td>
</tr>
<tr id="subtract">
<td class="name">
<div class="name">
subtract(p)
</div>
<div class="attributes">
<span class="light">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span>
</div>
</td>
<td class="description">
<div class="description">
<!--newp--><p><p>Modify this point so that is the difference of this Point and the
x and y co-ordinates of the given Point.<span class="nodetails" id="xmethsubtract"><a class="morelink" onclick="hst('methsubtract')">More...</a></span> <span class="details" id="methsubtract"></span>
</p><div class="seealso">See also:
<ul class="seealsolist">
<li><a href="../symbols/Point.html#offset" class="linkMethod">offset</a></li>
<li><a href="../symbols/Point.html#add" class="linkMethod">add</a></li>
</ul></div>
<dl class="detailList">
<dt class="heading">Parameters:</dt>
<dt>
<span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> <b>p</b>
</dt>
<dd>The Point to subtract from the current Point.</dd>
</dl>
<dl class="detailList">
<dt class="heading">Returns:</dt>
<dt><span class="light fixedFont">{<a href="../symbols/Point.html" class="linkConstructor">Point</a>}</span> this.</dt>
</dl>
</div>
</td>
</tr>
</tbody>
</table>
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