svg动画之动态描边效果

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"circle"){ length = 2*Math.PI*path3.getAttribute("r"); }else if(path3.tagName == "line"){ var x_1=path3.getAttribute("x1"),y_1=path3.getAttribute("y1"),x_2=path3.getAttribute("x2"),y_2=path3.getAttribute("y2"); length = Math.sqrt(Math.pow((x_1-x_2),2) + Math.pow((y_1-y_2),2)); } path3.style.strokeDasharray = length + ' ' + length; path3.style.strokeDashoffset = length; return Math.pow(length, 0.5) * 0.02; }); paths[0].getBoundingClientRect(); paths.forEach(function(path, i) { path.style.transition = path.style.WebkitTransition = 'stroke-dashoffset ' + durations[i] + 's ' + begin + 's ease-in-out'; path.style.strokeDashoffset = '0'; path.setAttribute("class", "shade"); begin += durations[i] + 0.1; }); } window.addEventListener('load', fullSketch); }()); </script>

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