多色彩的圆圈形计数器

可以围绕着大圈来拖动小人所在的小圈并改变大圈圆弧边框色来显示计数度

GSAP

《three.js如何实现贴图模糊效果 - 使用canvas》申请公开！

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常用链接

HTML
CSS
JavaScript
Result

编译

JavaScript

var $line = document.querySelector('.circle__svg-path');
var $handler = document.querySelector('.circle__control-handler');
var $valueCont = document.querySelector('.circle__value');
var $valueInner = document.querySelector('.circle__value-inner');
var $value = document.querySelector('.js-picker-value');
var $guy = document.querySelector('.guy');

var $leftArm = document.querySelector('.js-left-arm');
var $rightArm = document.querySelector('.js-right-arm');
var $leftLeg = document.querySelector('.js-left-leg');
var $rightLeg = document.querySelector('.js-right-leg');

var lineLen = $line.getTotalLength();
var maxRt = 360;
var minVal = 22;
var maxVal = 70;
var deltaVal = maxVal - minVal;
var valOnLeft = false;
var progress = 0;

// set HEX gradient colors here
var gradient = [{
    pos: 0,
    color: '#f3312f'
}, {
    pos: 0.5,
    color: '#f7a81f'
}, {
    pos: 0.75,
    color: '#288d45'
}, {
    pos: 1,
    color: '#4ecd72'
}];

var gradZones = [];

for (var i = 0; i < gradient.length - 1; i++) {
    var from = gradient[i];
    var to = gradient[i + 1];
    var fp = from.pos;
    var fc = from.color;
    var tp = to.pos;
    var tc = to.color;

gradZones.push({
        from: fp,
        to: tp,
        fromColor: fc,
        toColor: tc
    });
}

TweenMax.set($leftArm, {
    rotation: 30
});
TweenMax.set($rightArm, {
    rotation: -50
});
TweenMax.set($leftLeg, {
    rotation: 50
});
TweenMax.set($rightLeg, {
    rotation: -20
});

var guyWalkTL = new TimelineMax({
    paused: true
});

guyWalkTL.add(TweenMax.to($leftArm, 0.3, {
        rotation: 10
    }))
    .add(TweenMax.to($rightArm, 0.3, {
        rotation: -20
    }))
    .add(TweenMax.to($leftLeg, 0.3, {
        rotation: 20
    }))
    .add(TweenMax.to($rightLeg, 0.3, {
        rotation: 10
    }));

function getColorsObj(color) {
    var c = color.slice(1);
    var cFull = (c.length === 6);
    var cR = cFull ? c.slice(0, 2) : c.slice(0, 1);
    var cG = cFull ? c.slice(2, 4) : c.slice(1, 2);
    var cB = cFull ? c.slice(4, 6) : c.slice(2, 3);
    return {
        r: parseInt(cR, 16),
        g: parseInt(cG, 16),
        b: parseInt(cB, 16)
    }
};

function getFinalColorPart(p1, p2, pos) {
    var change = Math.abs(p1 - p2) * pos;
    return (p1 < p2) ? p1 + change : p1 - change;
};

function getGradColor(color1, color2, pos) {
    var c1 = getColorsObj(color1);
    var c2 = getColorsObj(color2);
    var r = getFinalColorPart(c1.r, c2.r, pos);
    var g = getFinalColorPart(c1.g, c2.g, pos);
    var b = getFinalColorPart(c1.b, c2.b, pos);

return 'rgb(' + r + ',' + g + ',' + b + ')';
};

function getColorFromZone(pos) {
    var zone = gradZones.filter(function(z) {
        return pos >= z.from && pos <= z.to;
    })[0];

var relPos = (pos - zone.from) / (zone.to - zone.from);

return getGradColor(zone.fromColor, zone.toColor, relPos);
}

var picker = Draggable.create(
    '.circle__control', {
        type: "rotation",
        throwProps: true,
        bounds: {
            minRotation: 0,
            maxRotation: maxRt
        },
        onDrag: dragHandler
    }
);

function dragHandler(e) {
    var rt = this.rotation;
    progress = rt / maxRt;
    var color = getColorFromZone(progress);
    var val = Math.round(progress * deltaVal) + minVal;

TweenMax.set([$valueCont, $guy], {
        rotation: rt * -1
    });

TweenMax.to($line, 0.3, {
        attr: {
            'stroke-dashoffset': (progress * lineLen * -1)
        }
    });

TweenMax.to($handler, 0.3, {
        'border-color': color
    });

$value.innerHTML = val;

if (progress > 0.5 && !valOnLeft) {
        $valueInner.classList.add('s--left');
        valOnLeft = true;
    }

if (progress <= 0.5 && valOnLeft) {
        $valueInner.classList.remove('s--left');
        valOnLeft = false;
    }

animateGuy();
};

function animateGuy() {
    var p = (progress * 20) % 2;
    if (p > 1) p = 2 - p;
    guyWalkTL.progress(p);
};

编译

CSS

*,
*:before,
*:after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: Helvetica, Arial, sans-serif;
    background: #f5f5f5;
}
.cont {
    position: relative;
    width: 700px;
    height: 700px;
    margin: 70px auto;
    background: #fff;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}
.cont__header {
    height: 100px;
    padding: 0 20px;
    margin-bottom: 120px;
    background-color: #ed6f24;
    text-align: center;
}
.cont__heading {
    font-size: 30px;
    line-height: 100px;
    color: #fff;
}
.cont__description {
    padding: 0 20px;
    font-size: 20px;
    text-align: center;
    color: #adadad;
}
.circle {
    position: relative;
    width: 280px;
    height: 280px;
    padding: 7px;
    margin: 0 auto 130px;
    border-radius: 50%;
    background: conic-gradient(#f3312f, #f7a81f 180deg, #288d45 270deg, #4ecd72 360deg);
}
.circle__svg {
    overflow: visible;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}
.circle__svg-path {
    stroke: #f2f2f2;
    fill: none;
    stroke-width: 13px;
    stroke-dasharray: 1225.59331, 1225.59331;
}
.circle__inner {
    z-index: 1;
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    background: #fff;
}
.circle__threshold {
    position: absolute;
    left: 0;
    width: 100%;
    font-size: 16px;
}
.circle__threshold:after {
    content: "";
    position: absolute;
}
.circle__threshold--min {
    top: 7px;
    text-align: center;
    color: #f3312f;
}
.circle__threshold--med {
    bottom: 10px;
    text-align: center;
    color: #f7a81f;
}
.circle__threshold--med:after {
    left: 50%;
    bottom: -17px;
    width: 2px;
    height: 7px;
    margin-left: -1px;
    background-color: #f7a81f;
}
.circle__threshold--good {
    top: 50%;
    padding-left: 8px;
    margin-top: -8px;
    color: #288d45;
}
.circle__threshold--good:after {
    left: -7px;
    top: 50%;
    width: 7px;
    height: 2px;
    margin-top: -1px;
    background-color: #288d45;
}
.circle__control {
    z-index: 2;
    position: absolute;
    left: 50%;
    top: 50%;
    width: 80.64px;
    height: 80.64px;
    margin-left: -40.32px;
    margin-top: -40.32px;
    user-select: none;
}
.circle__control-handler {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3px solid #f3312f;
    transform: translateY(-190.32px);
    cursor: pointer;
}
.circle__value {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    font-size: 18px;
    line-height: 80.64px;
    color: #b5adb5;
}
.circle__value-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform: translateX(120%);
    transition: transform 0.5s;
}
.circle__value-inner.s--left {
    transform: translateX(-100%);
}
.guy {
    position: absolute;
    width: 100%;
    height: 100%;
    padding: 15px;
}
.guy__head {
    width: 17px;
    height: 17px;
    margin: 0 auto;
    border-radius: 50%;
    border: 2px solid #d6ced6;
    transform: translateX(2px);
}
.guy__body {
    width: 2px;
    height: 24px;
    margin: -1px auto 0;
    background: #d6ced6;
    transform-origin: 50% 0;
    transform: translateX(2px) rotate(10deg);
}
.guy__arm {
    position: absolute;
    right: 50%;
    top: 1px;
    width: 6px;
    height: 12px;
    border: 2px solid #d6ced6;
    border-right: 0;
    border-top-left-radius: 12px;
    border-bottom-left-radius: 12px;
    transform-origin: 100% 0;
    transform: rotate(30deg);
}
.guy__arm--right {
    transform: rotate(-50deg);
}
.guy__leg {
    position: absolute;
    left: 0;
    top: 100%;
    width: 5px;
    height: 12px;
    margin-top: -3px;
    border: 2px solid #d6ced6;
    border-left: 0;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    transform-origin: 0 0;
    transform: rotate(50deg);
}
.guy__leg--right {
    transform: rotate(-20deg);
}
.icon-link {
    position: absolute;
    left: 5px;
    bottom: 5px;
    width: 32px;
}
.icon-link img {
    width: 100%;
    vertical-align: top;
}
.icon-link--twitter {
    left: auto;
    right: 5px;
}

HTML

可以围绕着大圈来拖动小人所在的小圈并改变大圈圆弧边框色来显示计数度

GSAP

编辑器支持Emmet

快捷键

可以围绕着大圈来拖动小人所在的小圈并改变大圈圆弧边框色来显示计数度

GSAP

圆形和弹性线条之间的碰撞动画

GSAP 很酷的圆形旋转图片切换效果

编辑器支持Emmet

快捷键

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