我正在尝试绘制面积图。我无法访问数据,我不知道为什么。在firefox控制台中“数据未定义”。这是我的代码和数据。 这种JSON格式的数据位于服务器端:
{"Id":466,"Name":"korea",
"Occurrences":[
{"OccurrenceDate":"\/Date(1398207600000+0100)\/","OccurrenceFrequency":27},
{"OccurrenceDate":"\/Date(1398726000000+0100)\/","OccurrenceFrequency":1},
{"OccurrenceDate":"\/Date(1398898800000+0100)\/","OccurrenceFrequency":4},
{"OccurrenceDate":"\/Date(1399071600000+0100)\/","OccurrenceFrequency":303}
]
}
这是我的代码
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
<script>
var margin = {top: 80, right: 80, bottom: 80, left: 80},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var parseDate1 = d3.time.format.iso.parse;
// Scales and axes. Note the inverted domain for the y-scale: bigger is up!
var x = d3.time.scale().range([0, width]),
y = d3.scale.linear().range([height, 0]),
xAxis = d3.svg.axis().scale(x).tickSize(-height).tickSubdivide(true),
yAxis = d3.svg.axis().scale(y).ticks(4).orient("right");
// An area generator, for the light fill.
var area = d3.svg.area()
.interpolate("monotone")
.x(function(d) { return x(d.OccurrenceDate); })
.y0(height)
.y1(function(d) { return y(d.OccurrenceFrequency); });
// A line generator, for the dark stroke.
var line = d3.svg.line()
.interpolate("monotone")
.x(function(d) { return x(d.OccurrenceDate); })
.y(function(d) { return y(d.OccurrenceFrequency); });
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 strURI = "http://tr-l6/STWebService/Service.svc/session/Fetchnodehistorybyname?
strnodename=korea";
// use jquery to get the json dataset because I cannot get d3.json to work with Firefox/Chrome (but it is OK with IE)
// this is probably a jsonp / cross domain issue that requires further tweaking in the WCF web,config file
// d3.json(strURI,function(error, graph) {
$.ajax({
type: "GET",
url: strURI,
dataType: 'jsonp',
success: function (graph) {
x
data.forEach(function(d) {
// Convert unix date format to regular format
var dc
//dc = (d.date).substring(1, 26);
dc = d.OccurrenceDate.substring(6, 16)
console.log(dc);
dc = new Date(dc*1000)
console.log(dc);
d.OccurrenceDate= parseDate1(dc);
d.OccurrenceFrequency = +d.OccurrenceFrequency;
return d
});
x.domain(d3.extent(data, function(d) { return d.OccurrenceDate; }));
y.domain([0, d3.max(data, function(d) { return d.OccurrenceFrequency; })]);
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)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
}});
答案 0 :(得分:0)
我不知道是否是错误的原因但你错过了</script>
脚本