import scrawl from '../source/scrawl.js';import scrawl from '../source/scrawl.js';const canvas = scrawl.library.canvas.mycanvas;
scrawl.importDomImage('.flowers');Create the target entity
const piccy = scrawl.makePicture({
name: 'base-piccy',
asset: 'iris',
width: '100%',
height: '100%',
copyWidth: '100%',
copyHeight: '100%',
method: 'fill',
filter: 'url(#svg-duotone)',
});We create the filter in the HTML script, not here:
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<filter id="svg-duotone">
<feColorMatrix type="matrix" values=".33 .33 .33 0 0
.33 .33 .33 0 0
.33 .33 .33 0 0
0 0 0 1 0">
</feColorMatrix><feComponentTransfer color-interpolation-filters="sRGB">
<feFuncR type="table" tableValues=".996 0.984"></feFuncR>
<feFuncG type="table" tableValues=".125 0.941"></feFuncG>
<feFuncB type="table" tableValues=".552 0.478"></feFuncB>
</feComponentTransfer>let feFuncR = document.querySelector('feFuncR'),
feFuncG = document.querySelector('feFuncG'),
feFuncB = document.querySelector('feFuncB');Function to display frames-per-second data, and other information relevant to the demo
let report = function () {
let testTicker = Date.now(),
testTime, testNow,
testMessage = document.querySelector('#reportmessage');
return function () {
testNow = Date.now();
testTime = testNow - testTicker;
testTicker = testNow;
testMessage.textContent = `Screen refresh: ${Math.ceil(testTime)}ms; fps: ${Math.floor(1000 / testTime)}
<filter id="svg-duotone">
<feColorMatrix type="matrix" values=".33 .33 .33 0 0 .33 .33 .33 0 0 .33 .33 .33 0 0 0 0 0 1 0"></feColorMatrix>
<feComponentTransfer color-interpolation-filters="sRGB">
<feFuncR type="discrete" tableValues="${feFuncR.getAttribute('tableValues')}" />
<feFuncG type="discrete" tableValues="${feFuncG.getAttribute('tableValues')}" />
<feFuncB type="discrete" tableValues="${feFuncB.getAttribute('tableValues')}" />
</feComponentTransfer>
</filter>`;
};
}();Create the Display cycle animation
const demoAnimation = scrawl.makeRender({
name: "demo-animation",
target: canvas,
afterShow: report,
});let r1 = document.querySelector('#r1'),
r2 = document.querySelector('#r2');
let g1 = document.querySelector('#g1'),
g2 = document.querySelector('#g2');
let b1 = document.querySelector('#b1'),
b2 = document.querySelector('#b2');
r1.value = 0.996;
r2.value = 0.984;
g1.value = 0.125;
g2.value = 0.941;
b1.value = 0.552;
b2.value = 0.478;Setup form functionality
let updateR = () => feFuncR.setAttribute('tableValues', `${r1.value} ${r2.value}`);
scrawl.addNativeListener(['input', 'change'], updateR, '.feFuncR');
let updateG = () => feFuncG.setAttribute('tableValues', `${g1.value} ${g2.value}`);
scrawl.addNativeListener(['input', 'change'], updateG, '.feFuncG');
let updateB = () => feFuncB.setAttribute('tableValues', `${b1.value} ${b2.value}`);
scrawl.addNativeListener(['input', 'change'], updateB, '.feFuncB');console.log(scrawl.library);