【发布时间】：2017-03-03 03:51:35
【问题描述】：
var cValue = function(d) {
return d.date;
},
color = d3.scale.category10();
var data = [{
"date": "30-Dec-16",
"time": "Mon Dec 30 2016 16:29:23 GMT+0530 (India Standard Time)",
"close": "30"
},
{
"date": "27-Jan-17",
"time": "Mon Jan 27 2017 11:29:23 GMT+0530 (India Standard Time)",
"close": "20"
},
{
"date": "1-Feb-17",
"time": "Mon Feb 1 2017 15:29:23 GMT+0530 (India Standard Time)",
"close": "10"
},
{
"date": "10-Feb-17",
"time": "Mon Feb 10 2017 21:29:23 GMT+0530 (India Standard Time)",
"close": "10"
}
];
var dateformat = d3.time.format("%H:%M").parse;
var parseDate = d3.time.format("%d-%b-%y").parse;
data.forEach(function(d) {
d.date = parseDate(d.date);
//d.time=formattedDateTime(d.time);
//d3.time.format('%H %M')(new Date(d.time));
d.time = d3.time.format('%H:%M')(new Date(d.time));
console.log("asubstring" + d.time);
//d.time = parseTime(d.time);
console.log(d.time);
});
var width = 1660;
height = 700;
padding = 100;
var margin = {
top: 20,
right: 20,
bottom: 30,
left: 40
},
width = 1260 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
// create an svg container
var vis = d3.select("body").
append("svg:svg")
.attr("width", width)
.attr("height", height);
// add the graph canvas to the body of the webpage
vis = 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 + ")");
// define the y scale (vertical)
var mindate = new Date(2012, 0, 1),
maxdate = new Date(2012, 0, 31);
var yScale = d3.time.scale()
.domain([new Date(), new Date()])
.nice(d3.time.day) // values between 0 and 100
.range([height - padding, padding]); // map these to the chart height, less padding.
//REMEMBER: y axis range has the bigger number first because the y value of zero is at the top of chart and increases as you go down.
// define the x scale (horizontal)
var mindate = new Date(2016, 11, 1),
maxdate = new Date();
var xScale = d3.time.scale()
.domain([mindate, maxdate]) // values between for month of january
.range([padding, width - padding * 2]); // map these the the chart width = total width minus padding at both sides
// define the y axis
var yValue = function(d) {
return d.time;
}; // data -> value
var yMap = function(d) {
return yValue(d);
};
var yAxis = d3.svg.axis()
.orient("left")
.scale(yScale).ticks(24).tickFormat(d3.time.format("%H:%M"));
// define the x axis
// setup x
var xValue = function(d) {
return d.date;
}; // data -> value
// value -> display
xMap = function(d) {
return xScale(xValue(d));
};
var xAxis = d3.svg.axis()
.orient("bottom")
.scale(xScale).tickFormat(d3.time.format("%Y-%m-%d"));
// draw y axis with labels and move in from the size by the amount of padding
vis.append("g")
.attr("transform", "translate(" + padding + ",0)")
.call(yAxis);
// draw x axis with labels and move to the bottom of the chart area
vis.append("g")
.attr("class", "xaxis") // give it a class so it can be used to select only xaxis labels below
.attr("transform", "translate(0," + (height - padding) + ")")
.call(xAxis);
// draw dots
vis.selectAll(".dot")
.data(data)
.enter().append("circle")
.attr("class", "dot")
.attr("r", 3.5)
.attr("cx", xMap)
.attr("cy", yMap)
.style("fill", function(d) {
return color(cValue(d));
})
.on("mouseover", function(d) {
tooltip.transition()
.duration(200)
.style("opacity", .9);
tooltip.html(d["Cereal Name"] + "<br/> (" + xValue(d) +
", " + yValue(d) + ")")
.style("left", (d3.event.pageX + 5) + "px")
.style("top", (d3.event.pageY - 28) + "px");
})
.on("mouseout", function(d) {
tooltip.transition()
.duration(500)
.style("opacity", 0);
});
// now rotate text on x axis
// solution based on idea here: https://groups.google.com/forum/?fromgroups#!topic/d3-js/heOBPQF3sAY
// first move the text left so no longer centered on the tick
// then rotate up to get 45 degrees.
vis.selectAll(".xaxis text") // select all the text elements for the xaxis
.attr("transform", function(d) {
return "translate(" + this.getBBox().height + "," + this.getBBox().height;
});
// draw legend
var legend = vis.selectAll(".legend")
.data(color.domain())
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) {
return "translate(0," + i * 20 + ")";
});
// draw legend colored rectangles
legend.append("rect")
.attr("x", width - 18)
.attr("width", 18)
.attr("height", 18)
.style("fill", color);
// draw legend text
legend.append("text")
.attr("x", width - 24)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function(d) {
return d;
});body {
font: 11px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.dot {
stroke: #000;
}
.tooltip {
position: absolute;
width: 200px;
height: 28px;
pointer-events: none;
}<html>
<head>
<title>D3 Axis Example</title>
<script src="http://d3js.org/d3.v2.js"></script>
</head>
<style>
</style>
<body>
<script>
</script>
</body>
</html>嗨， 我正在尝试在图表上绘制点，x 轴上是日期，y 轴上是时间。 x y 轴标签正确呈现，但不知何故，这些图没有花时间，只绘制了日期。我无法找出我做错了什么。 我附上了图表的图像以及我的代码 sn-p。 任何帮助将不胜感激
【问题讨论】：
标签： javascript d3.js charts timeserieschart