为什么这部动画在FireFox这么慢? [英] Why is this animation so slow in FireFox?
问题描述
我使用D3.js操纵某些SVG元素。我学会(艰难地),火狐的更新版本没有真正处理D3的力量布局良好。所以,我切换到一个简单的旋转,它仍然在Firefox上运行蹩脚。在下面的code,组别1
是200数组<圈>
,我动态创建的svg元素
函数轨道(目标,第一){ / *其他宽松这里选择:https://github.com/mbostock/d3/wiki/Transitions#wiki-d3_ease * /
VAR便于=(第一次)? 罪在':'直线'; 目标
。过渡()
.duration(40000)
.ease(放心)
.attrTween(改造,rotTween)
。每个('端',函数(){轨道(组1,假);}); 功能rotTween(){
VAR I = d3.interpolate(0,360);
复位功能(T){
返回旋转(+ I(T)+,+宽/ 2 +,+高度/ 2 +);
};
}}轨道(组1,真);
这是完美流畅的Chrome浏览器,但它沿一班班像在Firefox中乔乔列车。
根据要求,这里是如何组别1
选择:
VAR makeNode =功能(系数,X,Y){
系数=系数|| 1;
返回{
半径:(的Math.random()*系数).toFixed(2),
CX:函数(){返回X || Math.round(的Math.random()*宽)},
CY:功能(){返回是|| Math.round(的Math.random()*高)}
}
};VAR nodes1 = d3.range(300).MAP(函数(){返回makeNode(1.9);});
VAR nodes2 = d3.range(700).MAP(函数(){返回makeNode(0.6);});
//变种nodes2 = [];VAR SVG = d3.select('#sky_svg');
VAR组别1 = svg.append('G')ATTR(类,组1)。
VAR组2 = svg.append('G')ATTR(类,组2);VAR addNodes =功能(组节点){
对于(VAR I = 0; I< nodes.length;我++){
VAR节点=节点[I]
VAR圈= group.append('圈子');
圈
.attr(R,node.radius)
.attr(CX,node.cx)
.attr(CY,node.cy)
.attr(笔划宽度,8)
.attr(中风,透明)
.style(补,#FFFFFF);
}
}addNodes(组1,nodes1);
addNodes(组2,nodes2);
我也一直在渲染SVG变换,IE浏览器/镀铬处理,没有问题与Firefox的问题。按照帖子:
谷歌搜索:寻找SVG这是/是在Firefox慢
您还可以搜索:Firefox的Gecko渲染引擎+ SVG和看到Firefox已经为响应SVG渲染一个贫穷的代表。
我的建议是保持对火狐pressure修复动态SVG这个可怜的性能。
I'm using D3.js to manipulate some SVG elements. I learned (the hard way) that newer versions of FireFox don't really handle D3's force layout well. So I switched to a simple rotation and it's STILL running crappy in Firefox. In the following code, group1
is an array of 200 <circle>
svg elements which I create dynamically:
function orbit( target, first ) {
/* Other easing options here: https://github.com/mbostock/d3/wiki/Transitions#wiki-d3_ease */
var ease = ( first ) ? 'sin-in' : 'linear';
target
.transition()
.duration(40000)
.ease( ease )
.attrTween("transform", rotTween)
.each('end', function(){ orbit( group1, false ); } );
function rotTween() {
var i = d3.interpolate(0, 360);
return function(t) {
return "rotate(" + i(t) + ","+width/2+","+height/2+")";
};
}
}
orbit( group1, true );
It's perfect smooth in Chrome but it chugs along like a Choo Choo train in Firefox.
As requested, here is how group1
is selected:
var makeNode = function(coeficient, x, y) {
coeficient = coeficient || 1;
return {
radius: (Math.random() * coeficient ).toFixed(2),
cx: function() { return x || Math.round(Math.random()*width) },
cy: function() { return y || Math.round(Math.random()*height) }
}
};
var nodes1 = d3.range(300).map( function(){ return makeNode(1.9); } );
var nodes2 = d3.range(700).map( function(){ return makeNode(.6); } );
// var nodes2 = [];
var svg = d3.select('#sky_svg');
var group1 = svg.append('g').attr("class", "group1");
var group2 = svg.append('g').attr("class", "group2");
var addNodes = function(group, nodes) {
for (var i=0; i<nodes.length; i++){
var node = nodes[i];
var circle = group.append('circle');
circle
.attr("r", node.radius )
.attr("cx", node.cx )
.attr("cy", node.cy )
.attr("stroke-width", 8 )
.attr("stroke", "transparent")
.style("fill", "#FFFFFF");
}
}
addNodes( group1, nodes1 );
addNodes( group2, nodes2 );
I also, consistently have problems with FireFox in rendering svg transformations that IE/Chrome handle with no problem. Follow the Posts:
Google Search: "Looking for SVG that was/is slow in Firefox"
You can also search on: Firefox's Gecko rendering engine+SVG, and see that Firefox has a poor rep for responsive SVG rendering.
My suggestion is to keep pressure on FireFox to fix this poor performance in dynamic SVG.
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