import scrawl from '../source/scrawl.js';import scrawl from '../source/scrawl.js';const canvas = scrawl.library.canvas.mycanvas;
scrawl.importDomImage('.flowers');Create the filter
ranges attributeconst myFilter = scrawl.makeFilter({
name: 'chroma',
method: 'chroma',
ranges: [[0, 0, 0, 92, 127, 92]],
});Create the target entity
scrawl.makePicture({
name: 'base-piccy',
asset: 'iris',
width: '100%',
height: '100%',
copyWidth: '100%',
copyHeight: '100%',
method: 'fill',
filters: ['chroma'],
});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');
let lowCol = document.querySelector('#lowColor'),
highCol = document.querySelector('#highColor'),
opacity = document.querySelector('#opacity');
return function () {
testNow = Date.now();
testTime = testNow - testTicker;
testTicker = testNow;
testMessage.textContent = `Screen refresh: ${Math.ceil(testTime)}ms; fps: ${Math.floor(1000 / testTime)}
(Low color: ${lowCol.value}, High color: ${highCol.value})
Range: [${myFilter.ranges}]
Opacity: ${opacity.value}`;
};
}();Create the Display cycle animation
const demoAnimation = scrawl.makeRender({
name: "demo-animation",
target: canvas,
afterShow: report,
});const interpretColors = function () {
const converter = scrawl.makeColor({
name: 'converter',
});
const lowColor = document.querySelector('#lowColor');
const highColor = document.querySelector('#highColor');
let lowRed = 0,
lowGreen = 0,
lowBlue = 0,
highRed = 92,
highGreen = 127,
highBlue = 92;
return function () {
converter.convert(lowColor.value);
lowRed = converter.r;
lowGreen = converter.g;
lowBlue = converter.b;
converter.convert(highColor.value);
highRed = converter.r;
highGreen = converter.g;
highBlue = converter.b;
myFilter.set({
ranges: [[lowRed, lowGreen, lowBlue, highRed, highGreen, highBlue]],
})
}
}();
scrawl.addNativeListener(['input', 'change'], interpretColors, '.controlItem');
scrawl.addNativeListener(
['input', 'change'],
(e) => myFilter.set({ opacity: parseFloat(e.target.value) }),
'#opacity');Setup form
document.querySelector('#lowColor').value = '#000000';
document.querySelector('#highColor').value = '#5c7f5c';
document.querySelector('#opacity').value = 1;console.log(scrawl.library);