scrawl-canvas
Version:
Version 8.9.4 - 19 Nov 2022
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<ul class="sections">
<li id="section-1">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-1">§</a>
</div>
<h1 id="demo-canvas-020">Demo Canvas 020</h1>
<p>Testing createImageFromXXX functionality</p>
</div>
</li>
<li id="section-2">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-2">§</a>
</div>
<p><a href="../../demo/canvas-020.html">Run code</a></p>
</div>
<div class="content"><div class='highlight'><pre><span class="hljs-keyword">import</span> * <span class="hljs-keyword">as</span> scrawl <span class="hljs-keyword">from</span> <span class="hljs-string">'../source/scrawl.js'</span>
<span class="hljs-keyword">import</span> { reportSpeed } <span class="hljs-keyword">from</span> <span class="hljs-string">'./utilities.js'</span>;</pre></div></div>
</li>
<li id="section-3">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-3">§</a>
</div>
<h4 id="scene-setup">Scene setup</h4>
</div>
<div class="content"><div class='highlight'><pre><span class="hljs-keyword">let</span> canvas = scrawl.<span class="hljs-property">library</span>.<span class="hljs-property">artefact</span>.<span class="hljs-property">mycanvas</span>,
hold = scrawl.<span class="hljs-property">library</span>.<span class="hljs-property">artefact</span>.<span class="hljs-property">holdcanvas</span>;</pre></div></div>
</li>
<li id="section-4">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-4">§</a>
</div>
<p>Create gradients</p>
</div>
<div class="content"><div class='highlight'><pre><span class="hljs-keyword">let</span> myGrad = scrawl.<span class="hljs-title function_">makeGradient</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'linear1'</span>,
<span class="hljs-attr">endX</span>: <span class="hljs-string">'100%'</span>,
<span class="hljs-attr">colors</span>: [
[<span class="hljs-number">0</span>, <span class="hljs-string">'pink'</span>],
[<span class="hljs-number">999</span>, <span class="hljs-string">'darkgreen'</span>]
],
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'linear2'</span>,
<span class="hljs-attr">colors</span>: [
[<span class="hljs-number">0</span>, <span class="hljs-string">'darkblue'</span>],
[<span class="hljs-number">999</span>, <span class="hljs-string">'white'</span>]
],
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'linear3'</span>,
<span class="hljs-attr">colors</span>: [
[<span class="hljs-number">0</span>, <span class="hljs-string">'yellow'</span>],
[<span class="hljs-number">999</span>, <span class="hljs-string">'purple'</span>]
],
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'linear4'</span>,
<span class="hljs-attr">colors</span>: [
[<span class="hljs-number">0</span>, <span class="hljs-string">'black'</span>],
[<span class="hljs-number">999</span>, <span class="hljs-string">'coral'</span>]
],
});</pre></div></div>
</li>
<li id="section-5">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-5">§</a>
</div>
<p>Create entitys</p>
</div>
<div class="content"><div class='highlight'><pre><span class="hljs-keyword">let</span> block1 = scrawl.<span class="hljs-title function_">makeBlock</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'b1'</span>,
<span class="hljs-attr">group</span>: canvas.<span class="hljs-property">base</span>.<span class="hljs-property">name</span>,
<span class="hljs-attr">width</span>: <span class="hljs-string">'70%'</span>,
<span class="hljs-attr">height</span>: <span class="hljs-string">'70%'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'5%'</span>,
<span class="hljs-attr">startY</span>: <span class="hljs-string">'5%'</span>,
<span class="hljs-attr">fillStyle</span>: <span class="hljs-string">'linear1'</span>,
<span class="hljs-attr">lockFillStyleToEntity</span>: <span class="hljs-literal">true</span>,
<span class="hljs-attr">strokeStyle</span>: <span class="hljs-string">'coral'</span>,
<span class="hljs-attr">lineWidth</span>: <span class="hljs-number">4</span>,
<span class="hljs-attr">method</span>: <span class="hljs-string">'fillThenDraw'</span>,
});
<span class="hljs-keyword">let</span> block2 = block1.<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'b2'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'70%'</span>,
<span class="hljs-attr">startY</span>: <span class="hljs-string">'65%'</span>,
<span class="hljs-attr">handleX</span>: <span class="hljs-string">'center'</span>,
<span class="hljs-attr">handleY</span>: <span class="hljs-string">'center'</span>,
<span class="hljs-attr">scale</span>: <span class="hljs-number">0.5</span>,
<span class="hljs-attr">fillStyle</span>: <span class="hljs-string">'linear2'</span>,
<span class="hljs-attr">strokeStyle</span>: <span class="hljs-string">'red'</span>,
<span class="hljs-attr">delta</span>: {
<span class="hljs-attr">roll</span>: -<span class="hljs-number">0.5</span>
},
<span class="hljs-attr">order</span>: <span class="hljs-number">1</span>,
});
<span class="hljs-keyword">let</span> wheel1 = scrawl.<span class="hljs-title function_">makeWheel</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'w1'</span>,
<span class="hljs-attr">group</span>: canvas.<span class="hljs-property">base</span>.<span class="hljs-property">name</span>,
<span class="hljs-attr">radius</span>: <span class="hljs-string">'15%'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'80%'</span>,
<span class="hljs-attr">startY</span>: <span class="hljs-string">'30%'</span>,
<span class="hljs-attr">handleX</span>: <span class="hljs-string">'center'</span>,
<span class="hljs-attr">handleY</span>: <span class="hljs-string">'center'</span>,
<span class="hljs-attr">fillStyle</span>: <span class="hljs-string">'linear3'</span>,
<span class="hljs-attr">lockFillStyleToEntity</span>: <span class="hljs-literal">true</span>,
<span class="hljs-attr">strokeStyle</span>: <span class="hljs-string">'orange'</span>,
<span class="hljs-attr">lineWidth</span>: <span class="hljs-number">4</span>,
<span class="hljs-attr">method</span>: <span class="hljs-string">'fillThenDraw'</span>,
});
<span class="hljs-keyword">let</span> wheel2 = wheel1.<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'w2'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'30%'</span>,
<span class="hljs-attr">startY</span>: <span class="hljs-string">'60%'</span>,
<span class="hljs-attr">handleX</span>: <span class="hljs-string">'-10%'</span>,
<span class="hljs-attr">handleY</span>: <span class="hljs-string">'center'</span>,
<span class="hljs-attr">scale</span>: <span class="hljs-number">0.7</span>,
<span class="hljs-attr">fillStyle</span>: <span class="hljs-string">'linear4'</span>,
<span class="hljs-attr">strokeStyle</span>: <span class="hljs-string">'lightblue'</span>,
<span class="hljs-attr">delta</span>: {
<span class="hljs-attr">roll</span>: <span class="hljs-number">1</span>
},
<span class="hljs-attr">order</span>: <span class="hljs-number">1</span>,
});</pre></div></div>
</li>
<li id="section-6">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-6">§</a>
</div>
<p>Create the filter</p>
</div>
<div class="content"><div class='highlight'><pre>scrawl.<span class="hljs-title function_">makeFilter</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'invert'</span>,
<span class="hljs-attr">method</span>: <span class="hljs-string">'invert'</span>,
});</pre></div></div>
</li>
<li id="section-7">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-7">§</a>
</div>
<p>Create a new group with an entity that will only be caught in the Cell’s filter</p>
</div>
<div class="content"><div class='highlight'><pre>scrawl.<span class="hljs-title function_">makeGroup</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'temp-group'</span>,
<span class="hljs-attr">host</span>: canvas.<span class="hljs-property">base</span>.<span class="hljs-property">name</span>
});
scrawl.<span class="hljs-title function_">makeBlock</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'temp-block'</span>,
<span class="hljs-attr">group</span>: <span class="hljs-string">'temp-group'</span>,
<span class="hljs-attr">start</span>: [<span class="hljs-number">50</span>,<span class="hljs-number">50</span>],
<span class="hljs-attr">dimensions</span>: [<span class="hljs-number">40</span>, <span class="hljs-number">40</span>],
<span class="hljs-attr">fillStyle</span>: <span class="hljs-string">'red'</span>,
});</pre></div></div>
</li>
<li id="section-8">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-8">§</a>
</div>
<p>Functionality to capture cell, group and entity images</p>
</div>
<div class="content"><div class='highlight'><pre><span class="hljs-keyword">let</span> captureImages = <span class="hljs-literal">false</span>;
<span class="hljs-keyword">let</span> imageCapture = <span class="hljs-keyword">function</span> (<span class="hljs-params"></span>) {
<span class="hljs-keyword">if</span> (captureImages) {
scrawl.<span class="hljs-title function_">createImageFromCell</span>(canvas, <span class="hljs-literal">true</span>);
scrawl.<span class="hljs-title function_">createImageFromGroup</span>(canvas, <span class="hljs-literal">true</span>);
scrawl.<span class="hljs-title function_">createImageFromEntity</span>(block1, <span class="hljs-literal">true</span>);
scrawl.<span class="hljs-title function_">createImageFromEntity</span>(block2, <span class="hljs-literal">true</span>);
scrawl.<span class="hljs-title function_">createImageFromEntity</span>(wheel1, <span class="hljs-literal">true</span>);
scrawl.<span class="hljs-title function_">createImageFromEntity</span>(wheel2, <span class="hljs-literal">true</span>);
captureImages = <span class="hljs-literal">false</span>;
}
};</pre></div></div>
</li>
<li id="section-9">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-9">§</a>
</div>
<p>Add Picture entitys to the hold canvas, using the assets we will create from the main canvas</p>
</div>
<div class="content"><div class='highlight'><pre>scrawl.<span class="hljs-title function_">makePicture</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'cell-image'</span>,
<span class="hljs-attr">group</span>: hold.<span class="hljs-property">base</span>.<span class="hljs-property">name</span>,
<span class="hljs-attr">width</span>: <span class="hljs-string">'13%'</span>,
<span class="hljs-attr">height</span>: <span class="hljs-string">'76%'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'3%'</span>,
<span class="hljs-attr">startY</span>: <span class="hljs-string">'2%'</span>,
<span class="hljs-attr">asset</span>: <span class="hljs-string">'mycanvas_base-image'</span>,
<span class="hljs-attr">copyWidth</span>: <span class="hljs-string">'100%'</span>,
<span class="hljs-attr">copyHeight</span>: <span class="hljs-string">'100%'</span>,
<span class="hljs-attr">lineWidth</span>: <span class="hljs-number">2</span>,
<span class="hljs-attr">lineDash</span>: [<span class="hljs-number">6</span>, <span class="hljs-number">4</span>],
<span class="hljs-attr">strokeStyle</span>: <span class="hljs-string">'red'</span>,
<span class="hljs-attr">method</span>: <span class="hljs-string">'drawThenFill'</span>,
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'group-image'</span>,
<span class="hljs-attr">asset</span>: <span class="hljs-string">'mycanvas_base-groupimage'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'19%'</span>,
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'b1-image'</span>,
<span class="hljs-attr">asset</span>: <span class="hljs-string">'b1-image'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'35%'</span>,
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'b2-image'</span>,
<span class="hljs-attr">asset</span>: <span class="hljs-string">'b2-image'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'51%'</span>,
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'w1-image'</span>,
<span class="hljs-attr">asset</span>: <span class="hljs-string">'w1-image'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'67%'</span>,
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'w2-image'</span>,
<span class="hljs-attr">asset</span>: <span class="hljs-string">'w2-image'</span>,
<span class="hljs-attr">startX</span>: <span class="hljs-string">'83%'</span>,
});</pre></div></div>
</li>
<li id="section-10">
<div class="annotation">
<div class="sswrap ">
<a class="ss" href="#section-10">§</a>
</div>
<p>Give the hold Picture entitys some labels</p>
</div>
<div class="content"><div class='highlight'><pre>scrawl.<span class="hljs-title function_">makePhrase</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'cell-phrase'</span>,
<span class="hljs-attr">group</span>: hold.<span class="hljs-property">base</span>.<span class="hljs-property">name</span>,
<span class="hljs-attr">text</span>: <span class="hljs-string">'Cell'</span>,
<span class="hljs-attr">font</span>: <span class="hljs-string">'15px Arial, sans-serif'</span>,
<span class="hljs-attr">startY</span>: <span class="hljs-string">'85%'</span>,
<span class="hljs-attr">pivot</span>: <span class="hljs-string">'cell-image'</span>,
<span class="hljs-attr">lockXTo</span>: <span class="hljs-string">'pivot'</span>,
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'group-phrase'</span>,
<span class="hljs-attr">text</span>: <span class="hljs-string">'Group'</span>,
<span class="hljs-attr">pivot</span>: <span class="hljs-string">'group-image'</span>,
}).<span class="hljs-title function_">clone</span>({
<span class="hljs-attr">name</span>: <span class="hljs-string">'b1-phrase'</span>,
<span class="hljs-attr">text</span>: <span class="hljs-string">'Block1'</span>,
<span class="hljs-attr">pivot</span>: <span class="hljs-string">'