在 Apple Watch 的健身监测应用程序中，他们以彩色同心圆的形式显示事件图表。
有没有办法在 Apple Watch 上显示我的 D3.js 图表？
最佳答案
我想您可能会发现这很有帮助。 Apple Watch Activity
HTML
<head>
<meta charset="utf-8">
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
<link href='https://fonts.googleapis.com/css?family=Roboto' rel='stylesheet' type='text/css'>
</head>
<script src="https://cdn.rawgit.com/bm-w/d3/master/d3.js"></script>
CSS
html{
height: 100%;
}
body {
min-height: 100%;
background: #000000;
padding:0;
margin:0;
}
.icon{
font-family:fontawesome;
font-weight:bold;
font-size:30px;
}
.goal,.completed{
font-family: 'Roboto','Myriad Set Pro', 'Lucida Grande', 'Helvetica Neue', Helvetica, Arial, Verdana, sans-serif;
fill:white;
text-anchor:middle;
}
.goal{
font-size: 30px;
}
.completed{
font-size: 95px;
}
JS
//based on https://bl.ocks.org/mbostock/1096355
//apple design:https://images.apple.com/watch/features/images/fitness_large.jpg
"use strict";
(function(){
var gap = 2;
var ranDataset = function () {
var ran = Math.random();
return [
{index: 0, name: 'move', icon: "\uF105", percentage: ran * 60 + 30},
{index: 1, name: 'exercise', icon: "\uF101", percentage: ran * 60 + 30},
{index: 2, name: 'stand', icon: "\uF106", percentage: ran * 60 + 30}
];
};
var ranDataset2 = function () {
var ran = Math.random();
return [
{index: 0, name: 'move', icon: "\uF105", percentage: ran * 60 + 30}
];
};
var colors = ["#e90b3a", "#a0ff03", "#1ad5de"];
var width = 500,
height = 500,
τ = 2 * Math.PI;
function build(dataset,singleArcView){
var arc = d3.svg.arc()
.startAngle(0)
.endAngle(function (d) {
return d.percentage / 100 * τ;
})
.innerRadius(function (d) {
return 140 - d.index * (40 + gap)
})
.outerRadius(function (d) {
return 180 - d.index * (40 + gap)
})
.cornerRadius(20);//modified d3 api only
var background = d3.svg.arc()
.startAngle(0)
.endAngle(τ)
.innerRadius(function (d, i) {
return 140 - d.index * (40 + gap)
})
.outerRadius(function (d, i) {
return 180 - d.index * (40 + gap)
});
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
//add linear gradient, notice apple uses gradient alone the arc..
//meh, close enough...
var gradient = svg.append("svg:defs")
.append("svg:linearGradient")
.attr("id", "gradient")
.attr("x1", "0%")
.attr("y1", "100%")
.attr("x2", "50%")
.attr("y2", "0%")
.attr("spreadMethod", "pad");
gradient.append("svg:stop")
.attr("offset", "0%")
.attr("stop-color", "#fe08b5")
.attr("stop-opacity", 1);
gradient.append("svg:stop")
.attr("offset", "100%")
.attr("stop-color", "#ff1410")
.attr("stop-opacity", 1);
//add some shadows
var defs = svg.append("defs");
var filter = defs.append("filter")
.attr("id", "dropshadow")
filter.append("feGaussianBlur")
.attr("in", "SourceAlpha")
.attr("stdDeviation", 4)
.attr("result", "blur");
filter.append("feOffset")
.attr("in", "blur")
.attr("dx", 1)
.attr("dy", 1)
.attr("result", "offsetBlur");
var feMerge = filter.append("feMerge");
feMerge.append("feMergeNode")
.attr("in", "offsetBlur");
feMerge.append("feMergeNode")
.attr("in", "SourceGraphic");
var field = svg.selectAll("g")
.data(dataset)
.enter().append("g");
field.append("path").attr("class", "progress").attr("filter", "url(#dropshadow)");
field.append("path").attr("class", "bg")
.style("fill", function (d) {
return colors[d.index];
})
.style("opacity", 0.2)
.attr("d", background);
field.append("text").attr('class','icon');
if(singleArcView){
field.append("text").attr('class','goal').text("OF 600 CALS").attr("transform","translate(0,50)");
field.append("text").attr('class','completed').attr("transform","translate(0,0)");
}
d3.transition().duration(1750).each(update);
function update() {
field = field
.each(function (d) {
this._value = d.percentage;
})
.data(dataset)
.each(function (d) {
d.previousValue = this._value;
});
field.select("path.progress").transition().duration(1750).delay(function (d, i) {
return i * 200
})
.ease("elastic")
.attrTween("d", arcTween)
.style("fill", function (d) {
if(d.index===0){
return "url(#gradient)"
}
return colors[d.index];
});
field.select("text.icon").text(function (d) {
return d.icon;
}).attr("transform", function (d) {
return "translate(10," + -(150 - d.index * (40 + gap)) + ")"
});
field.select("text.completed").text(function (d) {
return Math.round(d.percentage /100 * 600);
});
setTimeout(update, 2000);
}
function arcTween(d) {
var i = d3.interpolateNumber(d.previousValue, d.percentage);
return function (t) {
d.percentage = i(t);
return arc(d);
};
}
}
build(ranDataset);
build(ranDataset2,true);
})()
关于javascript - 如何在 Apple Watch 中显示 D3.js 图表？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36285068/