我对这个d3.js的新东西,我愿意学习它,我正在做一个网站,我需要我的路径在最后打开,我想添加一些工具提示,我完成了通过网络阅读了一些文档,在我的代码中没有任何意义,任何人都可以提前了解一下,谢谢! :)
我的代码如下,它生成两个图形:
function getDateX(day2)
{
day = new String(day2);
return new Date(day.substring(0, 4) + '-' + day.substring(4, 6) + '-' + day.substring(6, 8));
}
function plotData(id, data, type)
{
var margin = {top: 40, right: 15, bottom: 30, left: 55},
width = 455,
height = 270 - margin.top - margin.bottom;
var x = d3.time.scale().range([0, width]);
var y = d3.scale.linear().range([height, 0]);
var xAxis = d3.svg.axis().scale(x).orient("bottom").ticks(data.length < 7 ? data.length : (data.length > 14 ? data.length / 5 : data.length / 3) ).tickFormat(d3.time.format("%d/%m"));
var yAxis = d3.svg.axis().scale(y).orient("left").ticks(5);
var area = d3.svg.area()
.x(function(d) { return x(getDateX(d.day)); })
.y0(height)
.y1(function(d) { return y( type == 'score' ? parseFloat(d.score) : d.good + d.neutral + d.bad)});
var svg = d3.select("#" + id)
.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 + ")");
svg.data(data);
x.domain(d3.extent(data, function(d) { return getDateX(d.day); }));
var min = d3.min(data, function(d) { return parseFloat(d.score); });
if(min > 6)
min = 6;
else if(min > 1)
min--;
if(type == 'score')
y.domain([min, 10]);
else
y.domain([0, d3.max(data, function(d) { return d.good + d.neutral + d.bad; })]);
svg.append("path").datum(data).attr("class", "area").attr("d", area);
svg.append("g").attr("class", "x axis").attr("transform", "translate(0," + height + ")").call(xAxis);
svg.append("g").attr("class", "y axis").call(yAxis);
}
var scores =
[
<%
boolean appendComma = false;
for(MovieGrade grade : info.getGrades())
{
if(appendComma)
out.print(",");
else
appendComma = true;
out.print("{\"day\":" + grade.getDay() + ", \"good\":" + grade.getGood() + ", \"neutral\":" + grade.getNeutral() + ", \"bad\":" + grade.getBad() + ", \"score\":\"" + grade.getScore() + "\"}");
}
%>
];
plotData('evolucao-score', scores, 'score');
plotData('evolucao-comments', scores, 'comments');