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Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
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<!--<b>GoJS</b>® Diagramming Components<br/>version <br/>version 2.1.18 for TypeScript/HTML<br/>by <a href="https://www.nwoods.com/">Northwoods Software®</a>-->
<b>GoJS</b>® Diagramming Components<br/>version 2.1.18<br/>by <a href="https://www.nwoods.com/">Northwoods Software®</a>
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<h1>Class FreehandDrawingTool</h1>
</div>
</div>
</div>
</div>
</header>
<div class="container-fluid container-main plr15">
<div class="row">
<div class="col-8 col-content">
<section class="tsd-panel tsd-extension">
<p>
This is an extension and not part of the main GoJS library.
Note that the API for this class may change at any time.
If you intend to use an extension in production, you should copy the code to your own source directory.
Extensions can be found in the GoJS kit under the <code>extensions</code> or <code>extensionsTS</code> folders.
See the <a href="../../intro/extensions.html">Extensions intro page</a> for more information.
</p>
</section>
<section class="tsd-panel tsd-hierarchy">
<h3>Hierarchy</h3>
<ul class="tsd-hierarchy">
<li>
<a href="Tool.html" class="tsd-signature-type">Tool</a>
<ul class="tsd-hierarchy">
<li>
<span class="target">FreehandDrawingTool</span>
</li>
</ul>
</li>
</ul>
</section>
<section class="tsd-panel tsd-comment">
<div class="tsd-comment tsd-typography">
<p>The FreehandDrawingTool allows the user to draw a shape using the mouse.
It collects all of the points from a mouse-down, all mouse-moves, until a mouse-up,
and puts all of those points in a <a href="Geometry.html">Geometry</a> used by a <a href="Shape.html">Shape</a>.
It then adds a node data object to the diagram's model.</p>
<p>This tool may be installed as the first mouse down tool:</p>
<pre><code class="hljs js"> myDiagram.toolManager.mouseDownTools.insertAt(<span class="hljs-number">0</span>, <span class="hljs-keyword">new</span> FreehandDrawingTool());</code></pre>
<p>The Shape used during the drawing operation can be customized by setting <a href="FreehandDrawingTool.html#temporaryShape">temporaryShape</a>.
The node data added to the model can be customized by setting <a href="FreehandDrawingTool.html#archetypePartData">archetypePartData</a>.</p>
<p>If you want to experiment with this extension, try the <a href="../../extensionsTS/FreehandDrawing.html">Freehand Drawing</a> sample.</p>
</div>
</section>
<section class="tsd-panel-group tsd-index-group">
<h2>Index</h2>
<section class="tsd-panel tsd-index-panel">
<div class="tsd-index-content">
<section class="tsd-index-section ">
<h3>Constructors</h3>
<ul class="tsd-index-list">
<li class="tsd-kind-constructor tsd-parent-kind-class"><a href="FreehandDrawingTool.html#constructor" class="tsd-kind-icon">constructor</a></li>
</ul>
</section>
<section class="tsd-index-section ">
<h3>Properties</h3>
<ul class="tsd-index-list">
<li class="tsd-kind-accessor tsd-parent-kind-class"><a href="FreehandDrawingTool.html#archetypePartData" class="tsd-kind-icon">archetype<wbr>Part<wbr>Data</a></li>
<li class="tsd-kind-accessor tsd-parent-kind-class"><a href="FreehandDrawingTool.html#isBackgroundOnly" class="tsd-kind-icon">is<wbr>Background<wbr>Only</a></li>
<li class="tsd-kind-accessor tsd-parent-kind-class"><a href="FreehandDrawingTool.html#temporaryShape" class="tsd-kind-icon">temporary<wbr>Shape</a></li>
</ul>
</section>
<section class="tsd-index-section ">
<h3>Methods</h3>
<ul class="tsd-index-list">
<li class="tsd-kind-method tsd-parent-kind-class"><a href="FreehandDrawingTool.html#addPoint" class="tsd-kind-icon">add<wbr>Point</a></li>
<li class="tsd-kind-method tsd-parent-kind-class"><a href="FreehandDrawingTool.html#canStart" class="tsd-kind-icon">can<wbr>Start</a></li>
<li class="tsd-kind-method tsd-parent-kind-class"><a href="FreehandDrawingTool.html#doActivate" class="tsd-kind-icon">do<wbr>Activate</a></li>
<li class="tsd-kind-method tsd-parent-kind-class"><a href="FreehandDrawingTool.html#doDeactivate" class="tsd-kind-icon">do<wbr>Deactivate</a></li>
<li class="tsd-kind-method tsd-parent-kind-class"><a href="FreehandDrawingTool.html#doMouseDown" class="tsd-kind-icon">do<wbr>Mouse<wbr>Down</a></li>
<li class="tsd-kind-method tsd-parent-kind-class"><a href="FreehandDrawingTool.html#doMouseMove" class="tsd-kind-icon">do<wbr>Mouse<wbr>Move</a></li>
<li class="tsd-kind-method tsd-parent-kind-class"><a href="FreehandDrawingTool.html#doMouseUp" class="tsd-kind-icon">do<wbr>Mouse<wbr>Up</a></li>
</ul>
</section>
</div>
</section>
</section>
<section class="tsd-panel-group tsd-member-group ">
<h2>Constructors</h2>
<section class="tsd-panel tsd-member tsd-kind-constructor tsd-parent-kind-class">
<a name="constructor" class="tsd-anchor"></a>
<h3>
constructor
</h3>
<ul class="tsd-signatures tsd-kind-constructor tsd-parent-kind-class">
<li class="tsd-signature tsd-kind-icon">new <wbr>Freehand<wbr>Drawing<wbr>Tool<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><a href="FreehandDrawingTool.html" class="tsd-signature-type">FreehandDrawingTool</a></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<h4 class="tsd-returns-title">Returns <a href="FreehandDrawingTool.html" class="tsd-signature-type">FreehandDrawingTool</a></h4>
</li>
</ul>
</section>
</section>
<section class="tsd-panel-group tsd-member-group ">
<h2>Properties</h2>
<section class="tsd-panel tsd-member tsd-kind-accessor tsd-parent-kind-class">
<a name="archetypePartData" class="tsd-anchor"></a>
<h3>
archetype<wbr>Part<wbr>Data
<span class="tsd-signature-symbol">: </span><a href="ObjectData.html" class="tsd-signature-type">ObjectData</a> </h3>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>Gets or sets the node data object that is copied and added to the model
when the freehand drawing operation completes.</p>
</div>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-accessor tsd-parent-kind-class">
<a name="isBackgroundOnly" class="tsd-anchor"></a>
<h3>
is<wbr>Background<wbr>Only
<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span> </h3>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>Gets or sets whether this tool can only run if the user starts in the diagram's background
rather than on top of an existing Part.</p>
<p>The default value is true.</p>
</div>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-accessor tsd-parent-kind-class">
<a name="temporaryShape" class="tsd-anchor"></a>
<h3>
temporary<wbr>Shape
<span class="tsd-signature-symbol">: </span><a href="Shape.html" class="tsd-signature-type">Shape</a> </h3>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>Gets or sets the Shape that is used to hold the line as it is being drawn.</p>
<p>The default value is a simple Shape drawing an unfilled open thin black line.</p>
</div>
</li>
</ul>
</section>
</section>
<section class="tsd-panel-group tsd-member-group ">
<h2>Methods</h2>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class">
<a name="addPoint" class="tsd-anchor"></a>
<h3>
add<wbr>Point
</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class">
<li class="tsd-signature tsd-kind-icon">add<wbr>Point<span class="tsd-signature-symbol">(</span>p<span class="tsd-signature-symbol">: </span><a href="Point.html" class="tsd-signature-type">Point</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>This adds a Point to the <a href="FreehandDrawingTool.html#temporaryShape">temporaryShape</a>'s geometry.</p>
<p>If the Shape is not yet in the Diagram, its geometry is initialized and
its parent Part is added to the Diagram.</p>
<p>If the point is less than half a pixel away from the previous point, it is ignored.</p>
</div>
<h4 class="tsd-parameters-title">Parameters</h4>
<ul class="tsd-parameters">
<li>
<h5>p: <a href="Point.html" class="tsd-signature-type">Point</a></h5>
</li>
</ul>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class">
<a name="canStart" class="tsd-anchor"></a>
<h3>
<span class="tsd-flag ts-flagOverride">Override</span>
can<wbr>Start
</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class">
<li class="tsd-signature tsd-kind-icon">can<wbr>Start<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>Only start if the diagram is modifiable and allows insertions.
OPTIONAL: if the user is starting in the diagram's background, not over an existing Part.</p>
</div>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class">
<a name="doActivate" class="tsd-anchor"></a>
<h3>
<span class="tsd-flag ts-flagOverride">Override</span>
do<wbr>Activate
</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class">
<li class="tsd-signature tsd-kind-icon">do<wbr>Activate<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>Capture the mouse and use a "crosshair" cursor.</p>
</div>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class">
<a name="doDeactivate" class="tsd-anchor"></a>
<h3>
<span class="tsd-flag ts-flagOverride">Override</span>
do<wbr>Deactivate
</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class">
<li class="tsd-signature tsd-kind-icon">do<wbr>Deactivate<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>Release the mouse and reset the cursor.</p>
</div>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class">
<a name="doMouseDown" class="tsd-anchor"></a>
<h3>
<span class="tsd-flag ts-flagOverride">Override</span>
do<wbr>Mouse<wbr>Down
</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class">
<li class="tsd-signature tsd-kind-icon">do<wbr>Mouse<wbr>Down<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>Start drawing the line by starting to accumulate points in the <a href="FreehandDrawingTool.html#temporaryShape">temporaryShape</a>'s geometry.</p>
</div>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class">
<a name="doMouseMove" class="tsd-anchor"></a>
<h3>
<span class="tsd-flag ts-flagOverride">Override</span>
do<wbr>Mouse<wbr>Move
</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class">
<li class="tsd-signature tsd-kind-icon">do<wbr>Mouse<wbr>Move<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>Keep accumulating points in the <a href="FreehandDrawingTool.html#temporaryShape">temporaryShape</a>'s geometry.</p>
</div>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class">
<a name="doMouseUp" class="tsd-anchor"></a>
<h3>
<span class="tsd-flag ts-flagOverride">Override</span>
do<wbr>Mouse<wbr>Up
</h3>
<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class">
<li class="tsd-signature tsd-kind-icon">do<wbr>Mouse<wbr>Up<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
</ul>
<ul class="tsd-descriptions">
<li class="tsd-description">
<div class="tsd-comment tsd-typography">
<p>Finish drawing the line by adding a node data object holding the
geometry string and the node position that the node template can bind to.
This copies the <a href="FreehandDrawingTool.html#archetypePartData">archetypePartData</a> and adds it to the model.</p>
</div>
<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
</li>
</ul>
</section>
</section>
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</ul>
<ul class="current">
<li class="current tsd-kind-class tsd-is-extension">
<a href="FreehandDrawingTool.html" class="tsd-kind-icon">Freehand<wbr>Drawing<wbr>Tool</a>
<ul>
<li class=" tsd-kind-constructor tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#constructor" class="tsd-kind-icon">constructor</a>
</li>
<li class=" tsd-kind-accessor tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#archetypePartData" class="tsd-kind-icon">archetype<wbr>Part<wbr>Data</a>
</li>
<li class=" tsd-kind-accessor tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#isBackgroundOnly" class="tsd-kind-icon">is<wbr>Background<wbr>Only</a>
</li>
<li class=" tsd-kind-accessor tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#temporaryShape" class="tsd-kind-icon">temporary<wbr>Shape</a>
</li>
<li class=" tsd-kind-method tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#addPoint" class="tsd-kind-icon">add<wbr>Point</a>
</li>
<li class=" tsd-kind-method tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#canStart" class="tsd-kind-icon">can<wbr>Start</a>
</li>
<li class=" tsd-kind-method tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#doActivate" class="tsd-kind-icon">do<wbr>Activate</a>
</li>
<li class=" tsd-kind-method tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#doDeactivate" class="tsd-kind-icon">do<wbr>Deactivate</a>
</li>
<li class=" tsd-kind-method tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#doMouseDown" class="tsd-kind-icon">do<wbr>Mouse<wbr>Down</a>
</li>
<li class=" tsd-kind-method tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#doMouseMove" class="tsd-kind-icon">do<wbr>Mouse<wbr>Move</a>
</li>
<li class=" tsd-kind-method tsd-parent-kind-class">
<a href="FreehandDrawingTool.html#doMouseUp" class="tsd-kind-icon">do<wbr>Mouse<wbr>Up</a>
</li>
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