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    ./demo/canvas-001.js ./demo/canvas-002.js ./demo/canvas-003.js ./demo/canvas-004.js ./demo/canvas-005.js ./demo/canvas-006.js ./demo/canvas-007.js ./demo/canvas-008.js ./demo/canvas-009.js ./demo/canvas-010.js ./demo/canvas-011.js ./demo/canvas-012.js ./demo/canvas-013.js ./demo/canvas-014.js ./demo/canvas-015.js ./demo/canvas-016.js ./demo/canvas-017.js ./demo/canvas-018.js ./demo/canvas-019.js ./demo/canvas-020.js ./demo/canvas-021.js ./demo/canvas-022.js ./demo/canvas-023.js ./demo/canvas-024.js ./demo/canvas-025.js ./demo/canvas-026.js ./demo/canvas-027.js ./demo/canvas-028.js ./demo/canvas-029.js ./demo/canvas-030.js ./demo/canvas-031.js ./demo/canvas-032.js ./demo/canvas-033.js ./demo/canvas-034.js ./demo/canvas-035.js ./demo/canvas-036.js ./demo/canvas-037.js ./demo/canvas-038.js ./demo/canvas-039.js ./demo/canvas-040.js ./demo/canvas-041.js ./demo/canvas-042.js ./demo/canvas-043.js ./demo/canvas-044.js ./demo/canvas-045.js ./demo/canvas-046.js ./demo/canvas-047.js ./demo/canvas-048.js ./demo/canvas-049.js ./demo/canvas-050.js ./demo/canvas-051.js ./demo/canvas-052.js ./demo/canvas-053.js ./demo/canvas-054.js ./demo/canvas-055.js ./demo/canvas-056.js ./demo/canvas-057.js ./demo/canvas-058.js ./demo/canvas-059.js ./demo/canvas-060.js ./demo/canvas-061.js ./demo/canvas-062.js ./demo/canvas-063.js ./demo/canvas-064.js ./demo/canvas-065.js ./demo/canvas-066.js ./demo/canvas-067.js ./demo/canvas-068.js ./demo/canvas-069.js ./demo/canvas-070.js ./demo/canvas-071.js ./demo/canvas-072.js ./demo/canvas-073.js ./demo/canvas-074.js ./demo/canvas-201.js ./demo/canvas-202.js ./demo/canvas-203.js ./demo/canvas-204.js ./demo/canvas-205.js ./demo/canvas-206.js ./demo/canvas-207.js ./demo/canvas-208.js ./demo/canvas-209.js ./demo/canvas-210.js ./demo/delaunator-001.js ./demo/delaunator-002.js ./demo/dom-001.js ./demo/dom-002.js ./demo/dom-003.js ./demo/dom-004.js ./demo/dom-005.js ./demo/dom-006.js ./demo/dom-007.js ./demo/dom-008.js ./demo/dom-009.js ./demo/dom-010.js ./demo/dom-011.js ./demo/dom-012.js ./demo/dom-013.js ./demo/dom-015.js ./demo/dom-016.js ./demo/dom-017.js ./demo/dom-018.js ./demo/dom-019.js ./demo/dom-020.js ./demo/dom-021.js ./demo/filters-001.js ./demo/filters-002.js ./demo/filters-003.js ./demo/filters-004.js ./demo/filters-005.js ./demo/filters-006.js ./demo/filters-007.js ./demo/filters-008.js ./demo/filters-009.js ./demo/filters-010.js ./demo/filters-011.js ./demo/filters-012.js ./demo/filters-013.js ./demo/filters-014.js ./demo/filters-015.js ./demo/filters-016.js ./demo/filters-017.js ./demo/filters-018.js ./demo/filters-019.js ./demo/filters-020.js ./demo/filters-021.js ./demo/filters-022.js ./demo/filters-023.js ./demo/filters-024.js ./demo/filters-025.js ./demo/filters-026.js ./demo/filters-027.js ./demo/filters-028.js ./demo/filters-029.js ./demo/filters-030.js ./demo/filters-031.js ./demo/filters-032.js ./demo/filters-033.js ./demo/filters-034.js ./demo/filters-035.js ./demo/filters-036.js ./demo/filters-037.js ./demo/filters-038.js ./demo/filters-039.js ./demo/filters-040.js ./demo/filters-041.js ./demo/filters-101.js ./demo/filters-102.js ./demo/filters-103.js ./demo/filters-104.js ./demo/filters-105.js ./demo/filters-501.js ./demo/filters-502.js ./demo/filters-503.js ./demo/filters-504.js ./demo/filters-505.js ./demo/mediapipe-001.js ./demo/mediapipe-002.js ./demo/mediapipe-003.js ./demo/modules-001.js ./demo/modules-002.js ./demo/modules-003.js ./demo/modules-004.js ./demo/modules-005.js ./demo/modules-006.js ./demo/packets-001.js ./demo/packets-002.js ./demo/particles-001.js ./demo/particles-002.js ./demo/particles-003.js ./demo/particles-004.js ./demo/particles-005.js ./demo/particles-006.js ./demo/particles-007.js ./demo/particles-008.js ./demo/particles-009.js ./demo/particles-010.js ./demo/particles-011.js ./demo/particles-012.js ./demo/particles-013.js ./demo/particles-014.js ./demo/particles-015.js ./demo/particles-016.js ./demo/particles-017.js ./demo/snippets-001.js ./demo/snippets-002.js ./demo/snippets-003.js ./demo/snippets-004.js ./demo/snippets-005.js ./demo/snippets-006.js ./demo/temp-001.js ./demo/temp-shape-scale-investigation.js ./demo/tensorflow-001.js ./demo/tensorflow-002.js ./demo/utilities.js
  • §

    Demo Canvas 029

    Image smoothing

  • §

    Run code

    import * as scrawl from '../source/scrawl.js'
    
    import { reportSpeed } from './utilities.js';
  • §

    Scene setup

    const canvas = scrawl.findCanvas('mycanvas');
  • §

    Namespacing boilerplate

    const namespace = canvas.name;
    const name = (n) => `${namespace}-${n}`;
    
    
    scrawl.importDomImage('.flowers');
    
    
    canvas.buildCell({
    
        name: name('text-cell'),
        dimensions: [100, 100],
        shown: false,
    });
    
    
    scrawl.makeLabel({
    
        name: name('hello-world-in-cell'),
        group: name('text-cell'),
    
        text: 'Hello world!',
    
        start: ['center', 'center'],
        handle: ['center', 'center'],
    });
    
    
    scrawl.makePicture({
    
        name: name('flower'),
        asset: 'iris',
    
        start: [3, 3],
        dimensions: [297, 297],
    
        copyStart: [200, 200],
        copyDimensions: [50, 50],
    
        lineWidth: 6,
        strokeStyle: 'gold',
    
        method: 'fillThenDraw',
    
    }).clone({
    
        name: name('hello'),
        asset: name('text-cell'),
    
        start: [300, 300],
        dimensions: [297, 297],
    
        copyStart: [15, 15],
        copyDimensions: [70, 70],
    });
    
    scrawl.makeLabel({
    
        name: name('hello-world-in-base-1'),
    
        text: 'Hello world!',
    
        start: ['25%', '60%'],
        handle: ['center', 'center'],
    
    }).clone({
    
        name: name('hello-world-in-base-2'),
        startY: '70%',
        scale: 2,
    
    }).clone({
    
        name: name('hello-world-in-base-3'),
        startY: '85%',
        scale: 4.5,
    });
    
    scrawl.makePattern({
    
        name: name('bunny-pattern'),
        imageSource: 'img/bunny.png',
        patternStretchX: 3,
        patternStretchY: 3,
    });
    
    scrawl.makeBlock({
    
        name: name('pattern-block'),
    
        start: [300, 3],
        dimensions: [297, 297],
    
        lineWidth: 6,
        fillStyle: name('bunny-pattern'),
        strokeStyle: 'gold',
    
        method: 'fillThenDraw',
    });
  • §

    Scene animation

    Function to display frames-per-second data, and other information relevant to the demo

    const report = reportSpeed('#reportmessage');
  • §

    Create the Display cycle animation

    scrawl.makeRender({
    
        name: name('animation'),
        target: canvas,
        afterShow: report,
    });
  • §

    Development and testing

    Setup form observer functionality

    scrawl.makeUpdater({
    
        event: ['input', 'change'],
        origin: '.controlItem',
    
        target: canvas.get('baseName'),
        targetLibrarySection: 'group',
    
        useNativeListener: true,
        preventDefault: true,
    
        updates: {
    
            imageSmoothingEnabled: ['imageSmoothingEnabled', 'boolean'],
            imageSmoothingQuality: ['imageSmoothingQuality', 'raw'],
        },
    });
  • §

    Setup form

    scrawl.initializeDomInputs([
        ['select', 'imageSmoothingEnabled', 1],
        ['select', 'imageSmoothingQuality', 2],
    ]);
    
    
    console.log(scrawl.library);