d3.js - 需要帮助调试Chrome,Safari和Firefox的差异 [英] d3.js - need help debugging differences in Chrome, Safari and Firefox
问题描述
我正在尝试此 d3演示,我在调试时遇到问题为什么我在Chrome与Safari / FireFox中遇到不同的行为。如果我在下面运行完整代码,它可以在Chrome中使用,但不能在Safari / Firefox中使用。我似乎把问题分离到以下:
如果我改变这一行:
var circles = chart.select(#points)。selectAll(circle)
$ b b
到此:
var circles = chart.selectAll(circle)
它适用于Safari / Firefox / Chrome,但我想了解发生了什么,为什么下面的代码不工作。
code>< svg>
< g id =chart>
< g id =bg>
< / g>
< g id =countries>
< / g>
< g id =points>
< / g>
< / g>
< / svg>
< script type =text / javascript>
d3.json(costofliving.json,function(col){
var cx = 200;
var cy = 132;
var cw = 400;
var ch = 400;
var svg = d3.select(svg);
var nticks = 14;
var price_min = 0;
var price_max = d3.max(col,function(d){return d.price});
var rent_min = 0;
var rent_max = d3.max(col,function(d){return d.rent});
var price_scale = d3.scale.linear()
.domain([price_min, price_max])
.range([ch,0]);
var rent_scale = d3.scale.linear()
.domain([rent_min,rent_max])
.range ([0,cw]);
var price_layout = d3.layout.histogram()
.value(function(d){return d.price})
.range ([0,price_max])
.bins(nticks);
var rent_layout = d3.layout.histogram()
.value(function(d){return d。 (b)
attr(transform,translate(+ [cx,cy] +));
chart.append(g)
.attr(id,countries)
.style(opacity,0);
chart.append(g)
.attr(id,points)
var circles = chart.select ).selectAll(circle)
.data(col);
circles.enter()
.append(circle)
circle.attr({
r:6,
cx:函数(d,i){
return rent_scale(d.rent);
},
cy:function(d,i){
return price_scale
}
})
});
< / script>
您需要设置在Firefox中任何
和 svg
元素的宽度 height
根据 W3C规范,svg元素将使用100%作为默认值,但是我的Firefox 17(可能还有其他浏览器)可能还没有实现它。
在代码中设置一些绝对值时,它可以正常工作。 / p>
< svg width =600height =600>
I am experimenting with this d3 demo and I am having trouble debugging why I am experiencing different behavior in Chrome vs. Safari/FireFox. If I run the full code below, it works in Chrome but not in Safari/Firefox. I seem to have isolated the problem to the following:
If I change this line:
var circles = chart.select("#points").selectAll("circle")
to this:
var circles = chart.selectAll("circle")
it works in Safari/Firefox/Chrome, but I want to understand what is happening and why the code below doesn't work. Any insight would be greatly appreciated.
Full Code
<svg>
<g id="chart">
<g id="bg">
</g>
<g id="countries">
</g>
<g id="points">
</g>
</g>
</svg>
<script type="text/javascript">
d3.json("costofliving.json", function(col) {
var cx = 200;
var cy = 132;
var cw = 400;
var ch = 400;
var svg = d3.select("svg");
var nticks = 14;
var price_min = 0;
var price_max = d3.max(col, function(d) {return d.price});
var rent_min = 0;
var rent_max = d3.max(col, function(d) {return d.rent});
var price_scale = d3.scale.linear()
.domain([price_min, price_max])
.range([ch, 0]);
var rent_scale = d3.scale.linear()
.domain([rent_min, rent_max])
.range([0, cw]);
var price_layout = d3.layout.histogram()
.value(function(d) { return d.price })
.range([0, price_max])
.bins(nticks);
var rent_layout = d3.layout.histogram()
.value(function(d) { return d.rent })
.range([0, rent_max])
.bins(nticks);
var chart = svg.append("g")
.attr("transform", "translate(" + [cx, cy] + ")");
chart.append("g")
.attr("id", "countries")
.style("opacity", 0);
chart.append("g")
.attr("id", "points")
var circles = chart.select("#points").selectAll("circle")
.data(col);
circles.enter()
.append("circle")
circles.attr({
r: 6,
cx: function(d,i) {
return rent_scale(d.rent);
},
cy: function(d,i) {
return price_scale(d.price);
}
})
});
</script>
You need to set a width
and height
for any svg
element in Firefox. According to the W3C Spec, the svg element will use "100%" as default, but my Firefox 17 (and probably other browsers) may not yet implement it like that.
When setting some absolute values in your code it works as expected.
<svg width="600" height="600">
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