• Jump To … +
    ./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-015a.js ./demo/canvas-016.js ./demo/canvas-017.js ./demo/canvas-018.js ./demo/canvas-019.js ./demo/canvas-019a.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/core-001.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/filters-001.js ./demo/filters-002.js ./demo/filters-002a.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-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/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/rapier-001.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-000.js ./demo/temp-001.js ./demo/temp-001a.js ./demo/temp-002.js ./demo/temp-003.js ./demo/temp-004.js ./demo/temp-005.js ./demo/temp-006.js ./demo/temp-007.js ./demo/temp-008.js ./demo/temp-009.js ./demo/temp-010.js ./demo/temp-011.js ./demo/temp-012.js ./demo/temp-013.js ./demo/temp-014.js ./demo/temp-015.js ./demo/temp-016.js ./demo/temp-017.js ./demo/temp-018.js ./demo/temp-018a.js ./demo/temp-019.js ./demo/temp-020.js ./demo/temp-021.js ./demo/temp-022.js ./demo/temp-023.js ./demo/temp-024.js ./demo/temp-025.js ./demo/temp-026.js ./demo/temp-027.js ./demo/temp-028.js ./demo/temp-029.js ./demo/temp-030.js ./demo/temp-031.js ./demo/temp-032.js ./demo/temp-033.js ./demo/temp-034.js ./demo/temp-035.js ./demo/temp-036.js ./demo/temp-037.js ./demo/temp-100.js ./demo/temp-101.js ./demo/temp-102.js ./demo/temp-103.js ./demo/temp-104.js ./demo/temp-200.js ./demo/temp-201.js ./demo/temp-301.js ./demo/temp-inkscapeSvgFilters.js ./demo/temp-lottie.js ./demo/tensorflow-001.js ./demo/tensorflow-002.js ./demo/utilities.js
  • §

    Demo Filters 012

    Filter parameters: matrix, matrix5

  • §

    Run code

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

    Scene setup

    const canvas = scrawl.library.canvas.mycanvas;
    
    scrawl.importDomImage('.flowers');
  • §

    Create the filters

    const matrix3 = scrawl.makeFilter({
    
        name: 'matrix3',
        method: 'matrix',
    
        weights: [0, 0, 0, 0, 1, 0, 0, 0, 0],
    });
    
    const matrix5 = scrawl.makeFilter({
    
        name: 'matrix5',
        method: 'matrix5',
    
        weights: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
    });
  • §

    Create the target entity

    const target = scrawl.makePicture({
    
        name: 'base-piccy',
    
        asset: 'iris',
    
        width: '100%',
        height: '100%',
    
        copyWidth: '100%',
        copyHeight: '100%',
    
        method: 'fill',
    
        filters: ['matrix3'],
    });
  • §

    Scene animation

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

    const report = reportSpeed('#reportmessage', function () {
  • §

    @ts-expect-error

        return `    matrix3 weights array: ${matrix3.weights}\n    matrix5 weights array: ${matrix5.weights}    \n    Opacity: ${opacity.value}`;
    });
  • §

    Create the Display cycle animation

    const demoAnimation = scrawl.makeRender({
    
        name: "demo-animation",
        target: canvas,
        afterShow: report,
    });
  • §

    User interaction

    Setup form observer functionality

    const changeMatrix = function () {
    
        const selector = document.querySelector('#selectMatrix');
    
        return function () {
    
            target.set({
  • §

    @ts-expect-error

                filters: [selector.value],
            });
        }
    }();
    scrawl.addNativeListener(['input', 'change'], changeMatrix, '#selectMatrix');
    
    const updateWeights = function () {
    
        let weights3, weights5;
    
        return function () {
  • §

    @ts-expect-error

            weights3 = [parseFloat(m22.value), parseFloat(m23.value), parseFloat(m24.value),
  • §

    @ts-expect-error

                        parseFloat(m32.value), parseFloat(m33.value), parseFloat(m34.value),
  • §

    @ts-expect-error

                        parseFloat(m42.value), parseFloat(m43.value), parseFloat(m44.value)];
  • §

    @ts-expect-error

            weights5 = [parseFloat(m11.value), parseFloat(m12.value), parseFloat(m13.value), parseFloat(m14.value), parseFloat(m15.value),
  • §

    @ts-expect-error

                        parseFloat(m21.value), parseFloat(m22.value), parseFloat(m23.value), parseFloat(m24.value), parseFloat(m25.value),
  • §

    @ts-expect-error

                        parseFloat(m31.value), parseFloat(m32.value), parseFloat(m33.value), parseFloat(m34.value), parseFloat(m35.value),
  • §

    @ts-expect-error

                        parseFloat(m41.value), parseFloat(m42.value), parseFloat(m43.value), parseFloat(m44.value), parseFloat(m45.value),
  • §

    @ts-expect-error

                        parseFloat(m51.value), parseFloat(m52.value), parseFloat(m53.value), parseFloat(m54.value), parseFloat(m55.value)];
    
            matrix3.set({
                weights: weights3,
            });
    
            matrix5.set({
                weights: weights5,
            });
        }
    }();
    scrawl.addNativeListener(['input', 'change'], updateWeights, '.weight');
    
    scrawl.addNativeListener(['input', 'change'], (e) => {
    
        const val = (e.target.value === '0') ? false : true;
    
        target.set({ memoizeFilterOutput: val });
    
    }, '#memoizeFilterOutput');
    
    scrawl.observeAndUpdate({
    
        event: ['input', 'change'],
        origin: '.controlItem',
    
        target: matrix3,
    
        useNativeListener: true,
        preventDefault: true,
    
        updates: {
    
            includeRed: ['includeRed', 'boolean'],
            includeGreen: ['includeGreen', 'boolean'],
            includeBlue: ['includeBlue', 'boolean'],
            includeAlpha: ['includeAlpha', 'boolean'],
    
            opacity: ['opacity', 'float'],
        },
    });
    
    scrawl.observeAndUpdate({
    
        event: ['input', 'change'],
        origin: '.controlItem',
    
        target: matrix5,
    
        useNativeListener: true,
        preventDefault: true,
    
        updates: {
    
            includeRed: ['includeRed', 'boolean'],
            includeGreen: ['includeGreen', 'boolean'],
            includeBlue: ['includeBlue', 'boolean'],
            includeAlpha: ['includeAlpha', 'boolean'],
    
            opacity: ['opacity', 'float'],
        },
    });
  • §

    Setup form

    const m11 = document.querySelector('#m11'),
        m12 = document.querySelector('#m12'),
        m13 = document.querySelector('#m13'),
        m14 = document.querySelector('#m14'),
        m15 = document.querySelector('#m15'),
        m21 = document.querySelector('#m21'),
        m22 = document.querySelector('#m22'),
        m23 = document.querySelector('#m23'),
        m24 = document.querySelector('#m24'),
        m25 = document.querySelector('#m25'),
        m31 = document.querySelector('#m31'),
        m32 = document.querySelector('#m32'),
        m33 = document.querySelector('#m33'),
        m34 = document.querySelector('#m34'),
        m35 = document.querySelector('#m35'),
        m41 = document.querySelector('#m41'),
        m42 = document.querySelector('#m42'),
        m43 = document.querySelector('#m43'),
        m44 = document.querySelector('#m44'),
        m45 = document.querySelector('#m45'),
        m51 = document.querySelector('#m51'),
        m52 = document.querySelector('#m52'),
        m53 = document.querySelector('#m53'),
        m54 = document.querySelector('#m54'),
        m55 = document.querySelector('#m55'),
        opacity = document.querySelector('#opacity');
  • §

    @ts-expect-error

    m11.value = 0;
  • §

    @ts-expect-error

    m12.value = 0;
  • §

    @ts-expect-error

    m13.value = 0;
  • §

    @ts-expect-error

    m14.value = 0;
  • §

    @ts-expect-error

    m15.value = 0;
  • §

    @ts-expect-error

    m21.value = 0;
  • §

    @ts-expect-error

    m22.value = 0;
  • §

    @ts-expect-error

    m23.value = 0;
  • §

    @ts-expect-error

    m24.value = 0;
  • §

    @ts-expect-error

    m25.value = 0;
  • §

    @ts-expect-error

    m31.value = 0;
  • §

    @ts-expect-error

    m32.value = 0;
  • §

    @ts-expect-error

    m33.value = 1;
  • §

    @ts-expect-error

    m34.value = 0;
  • §

    @ts-expect-error

    m35.value = 0;
  • §

    @ts-expect-error

    m41.value = 0;
  • §

    @ts-expect-error

    m42.value = 0;
  • §

    @ts-expect-error

    m43.value = 0;
  • §

    @ts-expect-error

    m44.value = 0;
  • §

    @ts-expect-error

    m45.value = 0;
  • §

    @ts-expect-error

    m51.value = 0;
  • §

    @ts-expect-error

    m52.value = 0;
  • §

    @ts-expect-error

    m53.value = 0;
  • §

    @ts-expect-error

    m54.value = 0;
  • §

    @ts-expect-error

    m55.value = 0;
  • §

    @ts-expect-error

    opacity.value = 1;
  • §

    @ts-expect-error

    document.querySelector('#selectMatrix').value = 'matrix3';
  • §

    @ts-expect-error

    document.querySelector('#includeRed').options.selectedIndex = 1;
  • §

    @ts-expect-error

    document.querySelector('#includeGreen').options.selectedIndex = 1;
  • §

    @ts-expect-error

    document.querySelector('#includeBlue').options.selectedIndex = 1;
  • §

    @ts-expect-error

    document.querySelector('#includeAlpha').options.selectedIndex = 0;
  • §

    @ts-expect-error

    document.querySelector('#memoizeFilterOutput').options.selectedIndex = 0;
  • §

    Drag-and-Drop image loading functionality

    addImageDragAndDrop(canvas, '#my-image-store', target);
  • §

    Development and testing

    console.log(scrawl.library);