Walkway用简单的方法为SVG元素添加动画效果

如何使用

// 创建一个实例
var svg = new Walkway(options);
// 开始绘制，回调函数可选
svg.draw(callback);

// 传入一个可选的目标SVG对象
var svg = new Walkway({ selector: '#test'});

// 改变默认参数
var svg = new Walkway({
  selector: '#test',
  duration: '2000',
  // can pass in a function or a string like 'easeOutQuint'
  easing: function (t) {
    return t * t;
  }
});

svg.draw();

// 如果你不想改变默认参数，你可以
// 通过一个选择字符串直接构造
var svg = new Walkway('#test');

svg.draw(function () {
  console.log('Animation finished');
});

参数

Easing

/*
 * Easing Functions - inspired from http://gizma.com/easing/
 * only considering the t value for the range [0, 1] => [0, 1]
 */
EasingFunctions = {
  // no easing, no acceleration
  linear: function (t) { return t },
  // accelerating from zero velocity
  easeInQuad: function (t) { return t*t },
  // decelerating to zero velocity
  easeOutQuad: function (t) { return t*(2-t) },
  // acceleration until halfway, then deceleration
  easeInOutQuad: function (t) { return t<.5 ? 2*t*t : -1+(4-2*t)*t },
  // accelerating from zero velocity 
  easeInCubic: function (t) { return t*t*t },
  // decelerating to zero velocity 
  easeOutCubic: function (t) { return (--t)*t*t+1 },
  // acceleration until halfway, then deceleration 
  easeInOutCubic: function (t) { return t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1 },
  // accelerating from zero velocity 
  easeInQuart: function (t) { return t*t*t*t },
  // decelerating to zero velocity 
  easeOutQuart: function (t) { return 1-(--t)*t*t*t },
  // acceleration until halfway, then deceleration
  easeInOutQuart: function (t) { return t<.5 ? 8*t*t*t*t : 1-8*(--t)*t*t*t },
  // accelerating from zero velocity
  easeInQuint: function (t) { return t*t*t*t*t },
  // decelerating to zero velocity
  easeOutQuint: function (t) { return 1+(--t)*t*t*t*t },
  // acceleration until halfway, then deceleration 
  easeInOutQuint: function (t) { return t<.5 ? 16*t*t*t*t*t : 1+16*(--t)*t*t*t*t }
}

将来计划