我正在繪製顯示2011年和2040年能源使用情況的堆積面積圖。 稍後我將使圖表互動。圖表起作用,我用這個例子:http://bl.ocks.org/mbostock/3020685 但是Ticks是錯誤的。他們顯示.2020.030.040而不是20202030和2040. 我無法找出錯誤在哪裏。我嘗試了一些東西,但沒有奏效。 謝謝你的幫助。d3.js錯誤的時間刻度
這裏是我的代碼:
function szenario() {
var data = [{"key":"Strom (fossil)", "value": 30, "date": 2011},
{"key":"Strom aus Biomasse", "value": 3, "date": 2011},
{"key":"Strom aus Windkraft", "value": 5, "date": 2011},
{"key":"Strom aus Photovoltaik", "value": 2, "date": 2011},
{"key":"Strom aus Wasserkraft", "value": 4, "date": 2011},
{"key":"Wärme aus Biomasse", "value": 2, "date": 2011},
{"key":"Wärme aus Solarenergie", "value": 1, "date": 2011},
{"key":"Wärme (fossil)", "value": 40, "date": 2011},
{"key":"Bio-Treibstoffe", "value": 5, "date": 2011},
{"key":"Treibstoffe-fossil", "value": 45, "date": 2011},
{"key":"Strom (fossil)", "value": 0, "date": 2040},
{"key":"Strom aus Biomasse", "value": 20, "date": 2040},
{"key":"Strom aus Windkraft", "value": 30, "date": 2040},
{"key":"Strom aus Photovoltaik", "value": 15, "date": 2040},
{"key":"Strom aus Wasserkraft", "value": 5, "date": 2040},
{"key":"Wärme aus Biomasse", "value": 10, "date": 2040},
{"key":"Wärme aus Solarenergie", "value": 8, "date": 2040},
{"key":"Wärme (fossil)", "value": 0, "date": 2040},
{"key":"Bio-Treibstoffe", "value": 20, "date": 2040},
{"key":"Treibstoffe-fossil", "value": 0, "date": 2040}
];
//var formatX = d3.time.format("%Y");
var formatY = d3.format("");
var margin = {top: 20, right: 30, bottom: 30, left: 40},
width = 520 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom;
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var z = d3.scale.category20c();
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom")
.ticks(3)
;
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(formatY);
var stack = d3.layout.stack()
.offset("zero")
.values(function(d) { return d.values; })
.x(function(d) { return d.date; })
.y(function(d) { return d.value; });
var nest = d3.nest()
.key(function(d) { return d.key; });
var area = d3.svg.area()
.interpolate("cardinal")
.x(function(d) { return x(d.date); })
.y0(function(d) { return y(d.y0); })
.y1(function(d) { return y(d.y0 + d.y); });
var svg = d3.select("#Szenarioanzeige")
.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 + ")");
/*d3.map(data, function(data) {
data.forEach(function(d) {
d.date = formatX(d.date);
d.value = +d.value;
});
});*/
var layers = stack(nest.entries(data));
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain([0, d3.max(data, function(d) { return d.y0 + d.y; })]);
svg.selectAll(".layer")
.data(layers)
.enter().append("path")
.attr("class", "layer")
.attr("d", function(d) { return area(d.values); })
.style("fill", function(d, i) { return z(i); });
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
};
當你說蜱是錯的時,你是什麼意思? –
格式錯誤。我想要2020,2030和2040標記的標記。但是圖表顯示的標記如.020 .030和0.40 – CST
您需要將您的年份解析爲日期。 'd3.time.format(「%Y」)。parse(d.date);' –