如何使用d3js实现联合绘图 [英] How to implement a jointplot using d3js
本文介绍了如何使用d3js实现联合绘图的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在使用d3js开发一个可视化项目。我有一些分布式数据集，我需要像这样可视化：
I'm working on a a visualisation project using d3js. I have some distributed dataset that I need to visualise like that :
这个可视化是使用 seaborn.jointplot 在python中完成，但我需要这个使用d3js实现，在d3js有什么替代方法吗？如何在d3js中做到这一点？
this visualisation was done using seaborn.jointplot in python, but I need this to be implemented using d3js, is there any alternative for that in d3js? how can this be done in d3js ?
推荐答案
酷炫的情节，今天早上，这里有一个 d3 v4最小实现：
Cool looking plot and I had some time this morning, so here's a d3 v4 minimal implementation:
<!DOCTYPE html>
<meta charset="utf-8">
<body>
<script src="//d3js.org/d3.v4.min.js"></script>
<script>
// set the dimensions and margins of the graph
var margin = {
top: 80,
right: 80,
bottom: 20,
left: 20
},
width = 400 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom;
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
var g = svg.append("g")
.attr("transform",
"translate(" + margin.left + "," + margin.top + ")");
var x = d3.scaleLinear().range([0, width]).domain([0, 10]),
y = d3.scaleLinear().range([height, 0]).domain([0, 10]);
// Add the X Axis
g.append("g")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x));
// Add the Y Axis
g.append("g")
.call(d3.axisLeft(y));
var random = d3.randomNormal(0, 1.2),
data = d3.range(100).map(function() {
return [random() + 5, random() + 5];
});
g.selectAll(".point")
.data(data)
.enter()
.append("circle")
.attr("cx", function(d) {
return x(d[0]);
})
.attr("cy", function(d) {
return y(d[1]);
})
.attr("r", 7)
.style("fill", "steelblue")
.style("stroke", "lightgray");
// top histogram
var gTop = svg.append("g")
.attr("transform",
"translate(" + margin.left + "," + 0 + ")");
var xBins = d3.histogram()
.domain(x.domain())
.thresholds(x.ticks(10))
.value(function(d) {
return d[0];
})(data);
var xy = d3.scaleLinear()
.domain([0, d3.max(xBins, function(d) {
return d.length;
})])
.range([margin.top, 0]);
var xBar = gTop.selectAll(".bar")
.data(xBins)
.enter().append("g")
.attr("class", "bar")
.attr("transform", function(d) {
return "translate(" + x(d.x0) + "," + xy(d.length) + ")";
});
var bWidth = x(xBins[0].x1) - x(xBins[0].x0) - 1;
xBar.append("rect")
.attr("x", 1)
.attr("width", bWidth)
.attr("height", function(d) {
return margin.top - xy(d.length);
})
.style("fill", "steelblue");
xBar.append("text")
.attr("dy", ".75em")
.attr("y", 2)
.attr("x", bWidth / 2)
.attr("text-anchor", "middle")
.text(function(d) {
return d.length < 4 ? "" : d.length;
})
.style("fill", "white")
.style("font", "9px sans-serif");
// right histogram
var gRight = svg.append("g")
.attr("transform",
"translate(" + (margin.left + width) + "," + margin.top + ")");
var yBins = d3.histogram()
.domain(y.domain())
.thresholds(y.ticks(10))
.value(function(d) {
return d[1];
})(data);
var yx = d3.scaleLinear()
.domain([0, d3.max(yBins, function(d) {
return d.length;
})])
.range([0, margin.right]);
var yBar = gRight.selectAll(".bar")
.data(yBins)
.enter().append("g")
.attr("class", "bar")
.attr("transform", function(d) {
return "translate(" + 0 + "," + y(d.x1) + ")";
});
var bWidth = y(yBins[0].x0) - y(yBins[0].x1) - 1;
yBar.append("rect")
.attr("y", 1)
.attr("width", function(d) {
return yx(d.length);
})
.attr("height", bWidth)
.style("fill", "steelblue");
yBar.append("text")
.attr("dx", "-.75em")
.attr("y", bWidth / 2 + 1)
.attr("x", function(d) {
return yx(d.length);
})
.attr("text-anchor", "middle")
.text(function(d) {
return d.length < 4 ? "" : d.length;
})
.style("fill", "white")
.style("font", "9px sans-serif");
</script>
</body>
</html>
d3.js第3版示例：
d3.js version 3 sample:
<!DOCTYPE html>
<meta charset="utf-8">
<head>
<style>
.bar {
fill: steelblue;
}
.bar:hover {
fill: brown;
}
.axis {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
</style>
</head>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
// set the dimensions and margins of the graph
var margin = {
top: 80,
right: 80,
bottom: 20,
left: 20
},
width = 400 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom;
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
var g = svg.append("g")
.attr("transform",
"translate(" + margin.left + "," + margin.top + ")");
var x = d3.scale.linear().range([0, width]).domain([0, 10]),
y = d3.scale.linear().range([height, 0]).domain([0, 10]);
// Add the X Axis
g.append("g")
.attr("class", "axis")
.attr("transform", "translate(0," + height + ")")
.call(d3.svg.axis().orient("bottom").scale(x));
// Add the Y Axis
g.append("g")
.attr("class", "axis")
.call(d3.svg.axis().orient("left").scale(y));
var random = d3.random.normal(0, 1.2),
data = d3.range(100).map(function() {
return [random() + 5, random() + 5];
});
g.selectAll(".point")
.data(data)
.enter()
.append("circle")
.attr("cx", function(d) {
return x(d[0]);
})
.attr("cy", function(d) {
return y(d[1]);
})
.attr("r", 7)
.style("fill", "steelblue")
.style("stroke", "lightgray");
// top histogram
var gTop = svg.append("g")
.attr("transform",
"translate(" + margin.left + "," + 0 + ")");
var xBins = d3.layout.histogram()
.range(x.domain())
.bins(x.ticks(10))
.value(function(d) {
return d[0];
})(data);
var xy = d3.scale.linear()
.domain([0, d3.max(xBins, function(d) {
return d.length;
})])
.range([margin.top, 0]);
var xBar = gTop.selectAll(".bar")
.data(xBins)
.enter().append("g")
.attr("class", "bar")
.attr("transform", function(d) {
return "translate(" + x(d.x) + "," + xy(d.length) + ")";
});
var bWidth = x(xBins[0].dx) - 1;
xBar.append("rect")
.attr("x", 1)
.attr("width", bWidth)
.attr("height", function(d) {
return margin.top - xy(d.length);
})
.style("fill", "steelblue");
xBar.append("text")
.attr("dy", ".75em")
.attr("y", 2)
.attr("x", bWidth / 2)
.attr("text-anchor", "middle")
.text(function(d) {
return d.length < 4 ? "" : d.length;
})
.style("fill", "white")
.style("font", "9px sans-serif");
// right histogram
var gRight = svg.append("g")
.attr("transform",
"translate(" + (margin.left + width) + "," + margin.top + ")");
var yBins = d3.layout.histogram()
.range(y.domain())
.bins(y.ticks(10))
.value(function(d) {
return d[1];
})(data);
console.log(yBins);
var yx = d3.scale.linear()
.domain([0, d3.max(yBins, function(d) {
return d.length;
})])
.range([0, margin.right]);
var yBar = gRight.selectAll(".bar")
.data(yBins)
.enter().append("g")
.attr("class", "bar")
.attr("transform", function(d) {
return "translate(" + 0 + "," + y(d.x + d.dx) + ")";
});
yBar.append("rect")
.attr("y", 1)
.attr("width", function(d) {
return yx(d.length);
})
.attr("height", bWidth)
.style("fill", "steelblue");
yBar.append("text")
.attr("dx", "-.75em")
.attr("y", bWidth / 2 + 1)
.attr("x", function(d) {
return yx(d.length);
})
.attr("text-anchor", "middle")
.text(function(d) {
return d.length < 4 ? "" : d.length;
})
.style("fill", "white")
.style("font", "9px sans-serif");
</script>
</body>
</html>
这篇关于如何使用d3js实现联合绘图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
