我试图动画附加的代码但没有成功。我希望轴和路径平滑地在添加新数据点之间切换。转换时间应为deltaT。我希望有人可以帮助我！ （我得到它的工作，但只要图表没有响应，请参见附件js片段）
的index.html：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Transfer setup rpi1 interface</title>
<meta name="viewport" content="width=device-width" />
<link rel="stylesheet" type="text/css" href="style.css">
<script type="text/javascript" src="jquery-1.11.3.min.js"></script>
<script src="jquery.flot.min.js"></script>
<script src="jquery.flot.time.js"></script>
<script src="//d3js.org/d3.v3.js" charset="utf-8"></script>
<script type="text/javascript" src="main.js"></script>
</head>
<body>
<div class="content">
<header>
<h1>Transfer Setup Rpi1</h1>
</header>
<div class="main">
<h2>Control</h2>
<fieldset>
<legend>Temperature</legend>
<div id="widthReader">
<table id="cssTable">
<tr>
<td>
<table id="cssTable">
<td><label for="toggleFan">Fan</label></td>
<td>
<input id="toggleFan" class="cmn-toggle cmn-toggle-round" type="checkbox">
<label for="toggleFan"></label>
</td>
</table>
</td>
<td>
</td>
<td>
<label>Speed:</label> <input type="text"
id="fanSpeed" name="fanSpeed" value="">
</td>
</tr>
<tr>
<td>
<table id="cssTable">
<td><label for="toggleHeater">Heater</label></td>
<td>
<input id="toggleHeater" class="cmn-toggle cmn-toggle-round" type="checkbox">
<label for="toggleHeater"></label>
</td>
</table>
</td>
<td>
</td>
<td>
<label>Setpoint:</label> <input type="text"
id="heaterTemp" name="heaterTemp" value="">
</td>
</tr>
</table>
</div>
</fieldset>
<button id="buttonSave">Save Settings</button>
<h2>Dashboard</h2>
<fieldset>
<legend>Chart</legend>
<label>Current Temperature:</label> <label id="heater_temperature"> </label><label>°C</label>
<div id="chart"></div>
</fieldset>
</div>
</div>
</body>
</html>
main.js：
var deltaT = 2500; //temperature update intervall
var Chart = (function(window,d3) {
var svg, data, x, y, xAxis, yAxis, dim, chartWrapper, line, path, margin = {}, width, height, locator, textsize, xlabeloff, ylabeloff, xtickpadding, ytickpadding, xtickdistance, ytickdistance;
var breakPoint = 400; //for rendering smaller fonts on mobile devices wiht small screen widths
var n = 10,//(4)*60,//length of recording
duration = deltaT,//duration of deltat in msec
now = new Date(Date.now() - duration),
count = 0,
data = Array.apply(null, new Array(n)).map(Number.prototype.valueOf,20);
//called once the data is loaded
function init() {
//initialize scales
x = d3.time.scale()
.domain([now - (n+1) * duration, now ])
.range([0, width]);
y = d3.scale.linear()
.domain([0, (1.1*d3.max(data))])
.range([height, 0]);
line = d3.svg.line()
.interpolate("basis")
.x(function (d, i) { return x(now - ((n-1) - i) * duration); })
.y(function (d, i) { return y(d); });
//initialize axis
x.axis = d3.svg.axis().scale(x).orient("top");
y.axis = d3.svg.axis().scale(y).orient("right");
x.axisT = d3.svg.axis().scale(x).orient("bottom").tickFormat("");
y.axisR = d3.svg.axis().scale(y).orient("left").tickFormat("");
//initialize svg
svg = d3.select('#chart')
.append('svg')
.style('pointer-events', 'none');
chartWrapper = svg
.append('g')
.style('pointer-events', 'all');
//cliping mask needed because trace updates and thus moves
clipMask = chartWrapper.append("defs").append("clipPath")
.attr("id", "clip")
.append("rect");
path = chartWrapper.append('g').attr("clip-path", "url(#clip)").append('path').datum(data).classed('line', true);
xAxis = chartWrapper.append('g')
.attr("class", "x axis")
.call(x.axis);
xAxisT = chartWrapper.append('g')
.attr("class", "x axis")
.call(x.axisT);
yAxis = chartWrapper.append('g')
.attr("class", "y axis")
.call(y.axis);
yAxisR = chartWrapper.append('g')
.attr("class", "y axis")
.call(y.axisR);
yLabel = chartWrapper.append("text")
.attr("class", "y label")
//.attr("transform", "rotate(-90)")
.style("text-anchor", "middle")
.text("Temperature (°C)");
xLabel = chartWrapper.append("text")
.attr("class", "x label")
.attr("text-anchor", "middle")
.text("Time (h:min)");
chartWrapper.on('mousemove', onMouseMove)
.on("mouseover", function() { locator.style("display", null); })
.on("mouseout", function() { locator.style("display", "none"); });
//add locator
locator = chartWrapper.append('g')
.attr("class", "focus");
//.style("display", "none");
locator.append('circle')
.attr('r', 4);
locator.append("text")
.attr("x", 0)
.style("text-anchor", "middle")
.attr("dy", "-8");
touchScale = d3.time.scale()
.domain([now - (n+1) * duration, now ]);
//render the chart
render();
}
function render() {
//get dimensions based on window size
updateDimensions();
clipMask.attr("width", width)
.attr("height", height);
//update x and y scales to new dimensions
x.range([0, width]);
y.range([height, 0]);
touchScale.range([0,width]).clamp(true);
//update svg elements to new dimensions
svg
.attr('width', width + margin.right + margin.left)
.attr('height', height + margin.top + margin.bottom);
chartWrapper
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
xLabel.attr("y", height + xlabeloff )
.attr("x", ((width/2) ) );
yLabel.attr("y", - ylabeloff )
.attr("x", (margin.top - height / 2) )
.attr("transform", "rotate(-90)");
//update the axis and line
x.axis.scale(x).tickPadding(xtickpadding);
x.axisT.scale(x);
y.axis.scale(y).tickPadding(ytickpadding);
y.axisR.scale(y);
x.axis.ticks(Math.max(width/xtickdistance, 2));
y.axis.ticks(Math.max(height/ytickdistance, 2));
x.axisT.ticks(Math.max(width/xtickdistance, 2));
y.axisR.ticks(Math.max(height/ytickdistance, 2));
xAxis.attr('transform', 'translate(0,' + height + ')').call(x.axis);
xAxisT.call(x.axisT);
yAxis.call(y.axis);
yAxisR.call(y.axisR).attr('transform', 'translate(' +width +' ,0)');
path.attr('d', line);
updateTextStyle();
}
function updateTextStyle() {
winWidth = document.getElementById("widthReader").offsetWidth;
textsize = winWidth < breakPoint ? "48%" : "80%";
//scale text size
chartWrapper.selectAll("text").style("font-size", textsize);
yAxis.call(y.axis).selectAll(".tick text").style("text-anchor", "end");
}
function updateDimensions(winWidth) {
winWidth = document.getElementById("widthReader").offsetWidth;
margin.top = winWidth < breakPoint ? 4 :10;
margin.right = winWidth < breakPoint ? 4 : 10;
margin.left = winWidth < breakPoint ? 26 : 48;
margin.bottom = winWidth < breakPoint ? 22: 40;
xlabeloff = winWidth < breakPoint ? 21 : 38;
ylabeloff = winWidth < breakPoint ? 20 : 36;
xtickpadding = winWidth < breakPoint ? "-17" : "-24";
ytickpadding = winWidth < breakPoint ? "-10" : "-12";
xtickdistance = winWidth < breakPoint ? 50 : 80;
ytickdistance = winWidth < breakPoint ? 15 : 35;
width = winWidth - margin.left - margin.right;
height = .54 * width;
}
function onMouseMove() {
var x0 = x.invert(d3.mouse(this)[0]),
y0 = y.invert(d3.mouse(this)[1]);
locator.attr("transform", "translate(" + d3.mouse(this)[0] + "," + d3.mouse(this)[1] + ")");
locator.select("text").text(y0);
}
function tick() {
// update the domains
now = new Date();
touchScale.domain([now - (n-1) * duration, now ]);
x.domain([now - (n-1) * duration, now ]);
y.domain([0, (1.1*d3.max(data))]);
// push a new data point onto the back
data.push(Number($('#heater_temperature').text()));
path.attr("d", line)
.attr("transform", null);
// slide the x-axis left, rescale the y-axis
xAxisT.call(x.axisT);
xAxis.call(x.axis);
yAxis.call(y.axis);
yAxisR.call(y.axisR);
// redraw the line and slide line left
path.attr("transform", "translate(" + (x(now - (n+0) * duration) ) + " ,0)");
// pop the old data point off the front
data.shift();
updateTextStyle();
};
return {
render : render,
tick : tick,
init : init
}
})(window,d3);
$(document).ready(function() {
// Start deltaT timer to call RESTful endpoint
setInterval(function() {
$('#heater_temperature').text(Math.random()*220);
Chart.tick();
}, deltaT);
});
$(window).load(function() { //is done after document ready
window.addEventListener('resize', Chart.render);
Chart.init();
Chart.render();
});
的style.css
.x.label
{
fill: #555;
}
.y.label
{
fill: #555;
}
.axis path,
.axis line {
stroke-width: 1px;
fill: none;
stroke: #ccc;
}
.axis text {
fill: #555;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 1px;
}
woking js：
var transition = d3.select({}).transition()
.duration(deltaT)
.ease("linear");
function tick() {
transition = transition.each(function () {
// update the domains
now = new Date();
x.domain([now - (n-1) * duration, now ]);
y.domain([0, (1.1*d3.max(data))]);
// push a new data point onto the back
data.push(Number($('#heater_temperature').text()));
// slide the x-axis left, rescale the y-axis
xAxisT.call(x.axisT);
xAxisB.call(x.axisB);
yAxisL.call(y.axisL);
yAxisR.call(y.axisR);
// redraw the line, and slide it to the left
path.attr("d", line)
.attr("transform", " translate( " + margin.left + " ," + margin.top+" )");
// slide the line left
path.transition()
.attr("transform", "translate(" + (x(now - (n+0) * duration) + margin.left) + " ," + margin.top+ ")");
// pop the old data point off the front
data.shift();
});
}
答案 0 :(得分：0)
我开始工作......问题是我开始使用d3.v3而不是d3.v2。这是我改变的：
function tick() {
d3.transition().ease("linear").duration(deltaT-100).each(function() {
// update the domains
now = new Date(Date.now());
markerScale.domain([now - (n-2) * duration, now ]);
xScale.domain([now - (n-2) * duration, now ]);
yScale.domain([0, (1.1*d3.max(data))]);
// slide the x-axis left, rescale the y-axis
xAxisContT.transition().call(xAxisT);
xAxisCont.transition().call(xAxis);
yAxisCont.transition().call(yAxis);
yAxisContR.transition().call(yAxisR);
plot.attr("transform", null);
// push a new data point onto the back
data.push( Number($('#heater_temperature').text()) );
path.attr("d", line);
marker.data(data)
.attr("cx", xValue)
.attr("cy", yValue)
.attr("transform", null);
// redraw the line and slide plot left
plot.transition()
.attr("transform", "translate(" + (xScale(now - (n-1) * duration) ) + " ,0)");
// pop the old data point off the front
data.shift();
updateTextStyle();
});
}