【发布时间】：2017-08-25 20:50:23
【问题描述】：
我正在尝试获取响应式 d3js 图表。我已将图表的宽度和高度设置为 100%，它有一个调整大小的功能，应该会减小大小。在我到目前为止所做的事情中，它只是设法减少了 x 轴上的标签，但折线图保持相同的大小。是我试图以正确的方式做出响应的方式，还是他们更好的方式任何 d3js 图表（条形/饼形/线形）都可以做出响应。
var margin = {
top: 30,
right: 20,
bottom: 30,
left: 50
};
var width = parseInt(d3.select("#chart").style("width")) - margin.left - margin.right,
height = parseInt(d3.select("#chart").style("height")) - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var y = d3.scale.linear().range([height, 0]);
var xAxis = d3.svg.axis().scale(x)
.orient("bottom").ticks(5).tickFormat(function (d) {
return d.replace('SEASONAL_', '');
});;
var yAxis = d3.svg.axis().scale(y)
.orient("left").ticks(5);
var valueline = d3.svg.line()
.x(function (d) {
return x(d.name);
})
.y(function (d) {
return y(d.count);
});
var svg = d3.select("body")
.append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
// Get the data
var all = [{
"name": "Seasonal Pop",
"code": "SEASONAL_POP",
"children": [{
"name": "SEASONAL_LYQ1",
"code": "SEASONAL_LYQ1",
"count": 1200
}, {
"name": "SEASONAL_LYQ2",
"code": "SEASONAL_LYQ2",
"count": 2000
}, {
"name": "SEASONAL_LYQ3",
"code": "SEASONAL_LYQ3",
"count": 1060
}, {
"name": "SEASONAL_LYQ4",
"code": "SEASONAL_LYQ4",
"count": 2300
}, {
"name": "SEASONAL_CYQ1",
"code": "SEASONAL_CYQ1",
"count": 1300
}, {
"name": "SEASONAL_CYQ2",
"code": "SEASONAL_CYQ2",
"count": 3400
}, {
"name": "SEASONAL_CYQ3",
"code": "SEASONAL_CYQ3",
"count": 4500
}, {
"name": "SEASONAL_CYQ4",
"code": "SEASONAL_CYQ4",
"count": 5500
}]
}];
var data = all[0].children;
data.forEach(function (d) {
// d.name = +d.date ;
d.count = +d.count;
});
// Scale the range of the data
x.domain(data.map(function (d) {
return d.name;
}));
y.domain([0, d3.max(data, function (d) {
return d.count;
})]);
svg.append("path") // Add the valueline path.
.attr("d", valueline(data));
svg.append("g") // Add the X Axis
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g") // Add the Y Axis
.attr("class", "y axis")
.call(yAxis);
// Define responsive behavior
function resize() {
var width = parseInt(d3.select("#chart").style("width")) - margin.left - margin.right,
height = parseInt(d3.select("#chart").style("height")) - margin.top - margin.bottom;
// Update the range of the scale with new width/height
x.range([0, width]);
y.range([height, 0]);
// Update the axis and text with the new scale
svg.select('.x.axis')
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.select('.y.axis')
.call(yAxis);
// Force D3 to recalculate and update the line
svg.selectAll('.line')
.attr("d", function(d) { return line(d.count); });
// Update the tick marks
xAxis.ticks(Math.max(width/75, 2));
yAxis.ticks(Math.max(height/50, 2));
};
// Call the resize function whenever a resize event occurs
d3.select(window).on('resize', resize);
// Call the resize function
resize();body {
font: 12px Arial;
}
path {
stroke: steelblue;
stroke-width: 2;
fill: none;
}
.axis path, .axis line {
fill: none;
stroke: grey;
stroke-width: 1;
shape-rendering: crispEdges;
}
#chart {
width: 100%;
height: 100%;
position: absolute;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<body><svg id="chart"></svg></body>【问题讨论】：
-
除非我遗漏了一些重要的东西：1）您没有为原始行分配一个类，所以
resize函数没有选择任何东西；和 2) 你没有在resize中调用valueLine函数。 -
看起来 Ryan Morton 可能正在做点什么。此外，
line在哪里定义为在文件末尾使用{ return line(d.count); });？
标签： javascript html css d3.js charts