我該如何在這個d3示例中對軸進行標記

我想出瞭如何將數據輸入到這個d3圖表中，但似乎無法弄清楚如何在x軸和y軸上放置標籤。我正在尋找將字符串作爲x軸中的值。任何幫助將不勝感激。謝謝我該如何在這個d3示例中對軸進行標記

<!DOCTYPE html> 
<meta charset="utf-8"> 
<style> 

body { 
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; 
    margin: auto; 
    position: relative; 
    width: 960px; 
} 

text { 
    font: 10px sans-serif; 
} 

.axis path, 
.axis line { 
    fill: none; 
    stroke: #000; 
    shape-rendering: crispEdges; 
} 

form { 
    position: absolute; 
    right: 10px; 
    top: 10px; 
} 

</style> 
<form> 
    <label><input type="radio" name="mode" value="grouped"> Grouped</label> 
    <label><input type="radio" name="mode" value="stacked" checked> Stacked</label> 
</form> 
<script src="http://d3js.org/d3.v3.min.js"></script> 
<script> 

var n = 3, // number of layers 
    m = 3, // number of samples per layer 
    stack = d3.layout.stack(), 
    // layers = stack(d3.range(n).map(function() { return bumpLayer(m, .1); })), 
    layers = [ 
       [ 
        {"x":0,"y":200,"y0":0}, 
        {"x":1,"y":150,"y0":0}, 
        {"x":2,"y":100,"y0":0} 
       ], 
       [ 
        {"x":0,"y":100,"y0":1}, 
        {"x":1,"y":80,"y0":1}, 
        {"x":2,"y":70,"y0":1} 
       ], 
       [ 
        {"x":0,"y":30,"y0":2}, 
        {"x":1,"y":40,"y0":2}, 
        {"x":2,"y":50,"y0":2} 
       ] 
      ]; 
    yGroupMax = d3.max(layers, function(layer) { return d3.max(layer, function(d) { return d.y; }); }), 
    yStackMax = d3.max(layers, function(layer) { return d3.max(layer, function(d) { return d.y0 + d.y; }); }); 

console.log(layers); 


var margin = {top: 40, right: 10, bottom: 20, left: 10}, 
    width = 960 - margin.left - margin.right, 
    height = 500 - margin.top - margin.bottom; 

var x = d3.scale.ordinal() 
    .domain(d3.range(m)) 
    .rangeRoundBands([0, width], .08); 

var y = d3.scale.linear() 
    .domain([0, yStackMax]) 
    .range([height, 0]); 

var color = d3.scale.linear() 
    .domain([0, n - 1]) 
    .range(["#aad", "#556"]); 

// var formatAxis = d3.format(" 0"); 
// var axis = d3.svg.axis() 
//   .scale(xScale) 
//   .tickFormat(formatAxis) 
//   .ticks(3) 
//   .tickValues([100, 200, 300]) //specify an array here for values 
//   .orient("bottom"); 

var xAxis = d3.svg.axis() 
    .scale(x) 
    .tickSize(0) 
    .tickPadding(6) 
    .orient("bottom"); 


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 + ")"); 

var layer = svg.selectAll(".layer") 
    .data(layers) 
    .enter().append("g") 
    .attr("class", "layer") 
    .style("fill", function(d, i) { return color(i); }); 

var rect = layer.selectAll("rect") 
    .data(function(d) { return d; }) 
    .enter().append("rect") 
    .attr("x", function(d) { return x(d.x); }) 
    .attr("y", height) 
    .attr("width", x.rangeBand()) 
    .attr("height", 0); 

rect.transition() 
    .delay(function(d, i) { return i * 10; }) 
    .attr("y", function(d) { return y(d.y0 + d.y); }) 
    .attr("height", function(d) { return y(d.y0) - y(d.y0 + d.y); }); 

svg.append("g") 
    .attr("class", "x axis") 
    .attr("transform", "translate(0," + height + ")") 
    .call(xAxis); 

d3.selectAll("input").on("change", change); 

var timeout = setTimeout(function() { 
    d3.select("input[value=\"grouped\"]").property("checked", true).each(change); 
}, 2000); 

function change() { 
    clearTimeout(timeout); 
    if (this.value === "grouped") transitionGrouped(); 
    else transitionStacked(); 
} 

function transitionGrouped() { 
    y.domain([0, yGroupMax]); 

    rect.transition() 
     .duration(500) 
     .delay(function(d, i) { return i * 10; }) 
     .attr("x", function(d, i, j) { return x(d.x) + x.rangeBand()/n * j; }) 
     .attr("width", x.rangeBand()/n) 
    .transition() 
     .attr("y", function(d) { return y(d.y); }) 
     .attr("height", function(d) { return height - y(d.y); }); 
} 

function transitionStacked() { 
    y.domain([0, yStackMax]); 

    rect.transition() 
     .duration(500) 
     .delay(function(d, i) { return i * 10; }) 
     .attr("y", function(d) { return y(d.y0 + d.y); }) 
     .attr("height", function(d) { return y(d.y0) - y(d.y0 + d.y); }) 
    .transition() 
     .attr("x", function(d) { return x(d.x); }) 
     .attr("width", x.rangeBand()); 
} 

// Inspired by Lee Byron's test data generator. 
// function bumpLayer(n, o) { 

// function bump(a) { 
//  var x = 1/(.1 + Math.random()), 
//   y = 2 * Math.random() - .5, 
//   z = 10/(.1 + Math.random()); 
//  for (var i = 0; i < n; i++) { 
//  var w = (i/n - y) * z; 
//  a[i] += x * Math.exp(-w * w); 
//  } 
// } 

// var a = [], i; 
// for (i = 0; i < n; ++i) a[i] = o + o * Math.random(); 
// for (i = 0; i < 5; ++i) bump(a); 
// return a.map(function(d, i) { return {x: i, y: Math.max(0, d)}; }); 
// } 

</script>

來源

2015-04-23 webDevleoper101

你看了一下tickFormat？請參閱此fiddle。

這裏是利益代碼：

var xAxis = d3.svg.axis() 
    .scale(x) 
    .tickSize(2) 
    .tickPadding(6) 
    .tickFormat(function(d) { return "test" + d; }) 
    .orient("bottom");

來源

2015-04-23 04:52:19 geekychick

我該如何在這個d3示例中對軸進行標記

回答

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