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我正在使用d3.js和angular js指令在我們的應用程序中創建條形圖。我使用的代碼如下所示。 這適用於正值。但它不顯示爲負值。我必須申請支持負值的chages。對於圖d3.js支持負值的條形圖
Html頁面
<cr-d3-bars data='myData'></cr-d3-bars>
如下圖所示
$scope.myData = [
{name: 'AngularJS', count: 300},
{name: 'D3.JS', count: 150},
{name: 'jQuery', count:10000},
{name: 'Backbone.js', count: 300},
{name: 'Ember.js', count: 100},
{name: 'hi.js', count: 300},
{name: 'hl.js', count: -100}
];
任何一個圖形
mainApp.directive('crD3Bars', function() {
return {
restrict: 'E',
scope: {
data: '='
},
link: function (scope, element) {
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 480 - margin.left - margin.right,
height = 360 - margin.top - margin.bottom;
var svg = d3.select(element[0])
.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 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");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(10);
//Render graph based on 'data'
scope.render = function(data) {
//Set our scale's domains
x.domain(data.map(function(d) { return d.name; }));
y.domain([0, d3.max(data, function(d) { return d.count; })]);
//Redraw the axes
svg.selectAll('g.axis').remove();
//X axis
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
//Y axis
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("Count");
var bars = svg.selectAll(".bar").data(data);
bars.enter()
.append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.name); })
.attr("width", x.rangeBand());
//Animate bars
bars
.transition()
.duration(1000)
.attr('height', function(d) { return height - y(d.count); })
.attr("y", function(d) { return y(d.count); });
};
我提供數據
JS文件已經解決,請與我分享
你能不能讓你有什麼例子?在小提琴也許?這會讓你更容易幫助你。 – 2014-12-03 12:33:25
它不起作用 – 2014-12-03 12:56:18
可能的重複[條形圖與負值](http://stackoverflow.com/questions/10127402/bar-chart-with-negative-values) – user1251007 2014-12-03 13:20:34