- 缓动函数
- ECharts图表
- jquery easing 插件
- Java
- 参考资料
之前收集了不少链接，结果久了都404了。还是得复制一份代码过来才放心。 缓动函数 ECharts图表
来自ECharts Demo Easing
const easingFuncs = {
linear: function (k) {
return k;
},
quadraticIn: function (k) {
return k * k;
},
quadraticOut: function (k) {
return k * (2 - k);
},
quadraticInOut: function (k) {
if ((k *= 2) < 1) {
return 0.5 * k * k;
}
return -0.5 * (--k * (k - 2) - 1);
},
cubicIn: function (k) {
return k * k * k;
},
cubicOut: function (k) {
return --k * k * k + 1;
},
cubicInOut: function (k) {
if ((k *= 2) < 1) {
return 0.5 * k * k * k;
}
return 0.5 * ((k -= 2) * k * k + 2);
},
quarticIn: function (k) {
return k * k * k * k;
},
quarticOut: function (k) {
return 1 - --k * k * k * k;
},
quarticInOut: function (k) {
if ((k *= 2) < 1) {
return 0.5 * k * k * k * k;
}
return -0.5 * ((k -= 2) * k * k * k - 2);
},
quinticIn: function (k) {
return k * k * k * k * k;
},
quinticOut: function (k) {
return --k * k * k * k * k + 1;
},
quinticInOut: function (k) {
if ((k *= 2) < 1) {
return 0.5 * k * k * k * k * k;
}
return 0.5 * ((k -= 2) * k * k * k * k + 2);
},
sinusoidalIn: function (k) {
return 1 - Math.cos((k * Math.PI) / 2);
},
sinusoidalOut: function (k) {
return Math.sin((k * Math.PI) / 2);
},
sinusoidalInOut: function (k) {
return 0.5 * (1 - Math.cos(Math.PI * k));
},
exponentialIn: function (k) {
return k === 0 ? 0 : Math.pow(1024, k - 1);
},
exponentialOut: function (k) {
return k === 1 ? 1 : 1 - Math.pow(2, -10 * k);
},
exponentialInOut: function (k) {
if (k === 0) {
return 0;
}
if (k === 1) {
return 1;
}
if ((k *= 2) < 1) {
return 0.5 * Math.pow(1024, k - 1);
}
return 0.5 * (-Math.pow(2, -10 * (k - 1)) + 2);
},
circularIn: function (k) {
return 1 - Math.sqrt(1 - k * k);
},
circularOut: function (k) {
return Math.sqrt(1 - --k * k);
},
circularInOut: function (k) {
if ((k *= 2) < 1) {
return -0.5 * (Math.sqrt(1 - k * k) - 1);
}
return 0.5 * (Math.sqrt(1 - (k -= 2) * k) + 1);
},
elasticIn: function (k) {
var s;
var a = 0.1;
var p = 0.4;
if (k === 0) {
return 0;
}
if (k === 1) {
return 1;
}
if (!a || a < 1) {
a = 1;
s = p / 4;
} else {
s = (p * Math.asin(1 / a)) / (2 * Math.PI);
}
return -(
a *
Math.pow(2, 10 * (k -= 1)) *
Math.sin(((k - s) * (2 * Math.PI)) / p)
);
},
elasticOut: function (k) {
var s;
var a = 0.1;
var p = 0.4;
if (k === 0) {
return 0;
}
if (k === 1) {
return 1;
}
if (!a || a < 1) {
a = 1;
s = p / 4;
} else {
s = (p * Math.asin(1 / a)) / (2 * Math.PI);
}
return (
a * Math.pow(2, -10 * k) * Math.sin(((k - s) * (2 * Math.PI)) / p) + 1
);
},
elasticInOut: function (k) {
var s;
var a = 0.1;
var p = 0.4;
if (k === 0) {
return 0;
}
if (k === 1) {
return 1;
}
if (!a || a < 1) {
a = 1;
s = p / 4;
} else {
s = (p * Math.asin(1 / a)) / (2 * Math.PI);
}
if ((k *= 2) < 1) {
return (
-0.5 *
(a *
Math.pow(2, 10 * (k -= 1)) *
Math.sin(((k - s) * (2 * Math.PI)) / p))
);
}
return (
a *
Math.pow(2, -10 * (k -= 1)) *
Math.sin(((k - s) * (2 * Math.PI)) / p) *
0.5 +
1
);
},
// 在某一动画开始沿指示的路径进行动画处理前稍稍收回该动画的移动
backIn: function (k) {
var s = 1.70158;
return k * k * ((s + 1) * k - s);
},
backOut: function (k) {
var s = 1.70158;
return --k * k * ((s + 1) * k + s) + 1;
},
backInOut: function (k) {
var s = 1.70158 * 1.525;
if ((k *= 2) < 1) {
return 0.5 * (k * k * ((s + 1) * k - s));
}
return 0.5 * ((k -= 2) * k * ((s + 1) * k + s) + 2);
},
// 创建弹跳效果
bounceIn: function (k) {
return 1 - easingFuncs.bounceOut(1 - k);
},
bounceOut: function (k) {
if (k < 1 / 2.75) {
return 7.5625 * k * k;
} else if (k < 2 / 2.75) {
return 7.5625 * (k -= 1.5 / 2.75) * k + 0.75;
} else if (k < 2.5 / 2.75) {
return 7.5625 * (k -= 2.25 / 2.75) * k + 0.9375;
} else {
return 7.5625 * (k -= 2.625 / 2.75) * k + 0.984375;
}
},
bounceInOut: function (k) {
if (k < 0.5) {
return easingFuncs.bounceIn(k * 2) * 0.5;
}
return easingFuncs.bounceOut(k * 2 - 1) * 0.5 + 0.5;
}
};
const N_POINT = 30;
const grids = [];
const xAxes = [];
const yAxes = [];
const series = [];
const titles = [];
let count = 0;
Object.keys(easingFuncs).forEach(function (easingName) {
var easingFunc = easingFuncs[easingName];
var data = [];
for (var i = 0; i <= N_POINT; i++) {
var x = i / N_POINT;
var y = easingFunc(x);
data.push([x, y]);
}
grids.push({
show: true,
borderWidth: 0,
shadowColor: 'rgba(0, 0, 0, 0.3)',
shadowBlur: 2
});
xAxes.push({
type: 'value',
show: false,
min: 0,
max: 1,
gridIndex: count
});
yAxes.push({
type: 'value',
show: false,
min: -0.4,
max: 1.4,
gridIndex: count
});
series.push({
name: easingName,
type: 'line',
xAxisIndex: count,
yAxisIndex: count,
data: data,
showSymbol: false,
animationEasing: easingName,
animationDuration: 1000
});
titles.push({
textAlign: 'center',
text: easingName,
textStyle: {
fontSize: 12,
fontWeight: 'normal'
}
});
count++;
});
var rowNumber = Math.ceil(Math.sqrt(count));
grids.forEach(function (grid, idx) {
grid.left = ((idx % rowNumber) / rowNumber) * 100 + 0.5 + '%';
grid.top = (Math.floor(idx / rowNumber) / rowNumber) * 100 + 0.5 + '%';
grid.width = (1 / rowNumber) * 100 - 1 + '%';
grid.height = (1 / rowNumber) * 100 - 1 + '%';
titles[idx].left = parseFloat(grid.left) + parseFloat(grid.width) / 2 + '%';
titles[idx].top = parseFloat(grid.top) + '%';
});
option = {
title: titles.concat([
{
text: 'Different Easing Functions',
top: 'bottom',
left: 'center'
}
]),
grid: grids,
xAxis: xAxes,
yAxis: yAxes,
series: series
};
jquery easing 插件
https://github.com/danro/jquery-easing/blob/master/jquery.easing.js
https://gsgd.co.uk/sandbox/jquery/easing/jquery.easing.1.3.js
jQuery.easing['jswing'] = jQuery.easing['swing'];
jQuery.extend( jQuery.easing,
{
// t: current time, b: begInnIng value, c: change In value, d: duration
def: 'easeOutQuad',
swing: function (x, t, b, c, d) {
//alert(jQuery.easing.default);
return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
},
easeInQuad: function (x, t, b, c, d) {
return c*(t/=d)*t + b;
},
easeOutQuad: function (x, t, b, c, d) {
return -c *(t/=d)*(t-2) + b;
},
easeInOutQuad: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t + b;
return -c/2 * ((--t)*(t-2) - 1) + b;
},
easeInCubic: function (x, t, b, c, d) {
return c*(t/=d)*t*t + b;
},
easeOutCubic: function (x, t, b, c, d) {
return c*((t=t/d-1)*t*t + 1) + b;
},
easeInOutCubic: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t*t + b;
return c/2*((t-=2)*t*t + 2) + b;
},
easeInQuart: function (x, t, b, c, d) {
return c*(t/=d)*t*t*t + b;
},
easeOutQuart: function (x, t, b, c, d) {
return -c * ((t=t/d-1)*t*t*t - 1) + b;
},
easeInOutQuart: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
return -c/2 * ((t-=2)*t*t*t - 2) + b;
},
easeInQuint: function (x, t, b, c, d) {
return c*(t/=d)*t*t*t*t + b;
},
easeOutQuint: function (x, t, b, c, d) {
return c*((t=t/d-1)*t*t*t*t + 1) + b;
},
easeInOutQuint: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
return c/2*((t-=2)*t*t*t*t + 2) + b;
},
easeInSine: function (x, t, b, c, d) {
return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
},
easeOutSine: function (x, t, b, c, d) {
return c * Math.sin(t/d * (Math.PI/2)) + b;
},
easeInOutSine: function (x, t, b, c, d) {
return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
},
easeInExpo: function (x, t, b, c, d) {
return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
},
easeOutExpo: function (x, t, b, c, d) {
return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
},
easeInOutExpo: function (x, t, b, c, d) {
if (t==0) return b;
if (t==d) return b+c;
if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
},
easeInCirc: function (x, t, b, c, d) {
return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
},
easeOutCirc: function (x, t, b, c, d) {
return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
},
easeInOutCirc: function (x, t, b, c, d) {
if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
},
easeInElastic: function (x, t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b; if ((t/=d)==1) return b+c; if (!p) p=d*.3;
if (a < Math.abs(c)) { a=c; var s=p/4; }
else var s = p/(2*Math.PI) * Math.asin (c/a);
return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
},
easeOutElastic: function (x, t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b; if ((t/=d)==1) return b+c; if (!p) p=d*.3;
if (a < Math.abs(c)) { a=c; var s=p/4; }
else var s = p/(2*Math.PI) * Math.asin (c/a);
return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
},
easeInOutElastic: function (x, t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b; if ((t/=d/2)==2) return b+c; if (!p) p=d*(.3*1.5);
if (a < Math.abs(c)) { a=c; var s=p/4; }
else var s = p/(2*Math.PI) * Math.asin (c/a);
if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
},
easeInBack: function (x, t, b, c, d, s) {
if (s == undefined) s = 1.70158;
return c*(t/=d)*t*((s+1)*t - s) + b;
},
easeOutBack: function (x, t, b, c, d, s) {
if (s == undefined) s = 1.70158;
return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
},
easeInOutBack: function (x, t, b, c, d, s) {
if (s == undefined) s = 1.70158;
if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
},
easeInBounce: function (x, t, b, c, d) {
return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
},
easeOutBounce: function (x, t, b, c, d) {
if ((t/=d) < (1/2.75)) {
return c*(7.5625*t*t) + b;
} else if (t < (2/2.75)) {
return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
} else if (t < (2.5/2.75)) {
return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
} else {
return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
}
},
easeInOutBounce: function (x, t, b, c, d) {
if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
}
});
Java
processing-penner-easing
ECharts Demo Easing
https://easings.net
