Skip to content

Instantly share code, notes, and snippets.

@hassansin
Last active March 9, 2016 23:32
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
Star You must be signed in to star a gist
Save hassansin/b140fcba99f126299eae to your computer and use it in GitHub Desktop.
D3 Chronograph Stopwatch
license: gpl-3.0
height: 300
border: no
<!DOCTYPE html>
<html>
<meta charset="utf-8">
<head>
<script src="//d3js.org/d3.v3.min.js"></script>
</head>
<body>
<svg id="drawing"></svg>
<script src="stopwatch.js"></script>
</body>
</html>
var w = 500, // svg width
h = 300, // svg height
padding = 40, //svg padding
//radius settings
r1 = Math.min(w,h)/2- padding,
r2 = 0.25*r1,
r3 = 0.30*r1,
r4 = 0.30*r1,
//marker settings
markers = {
second: {
primary: {
width: 1,
height: 6,
count: 3,
color: 'orange',
}
},
minute: {
primary: {
width: 1,
height: 10,
color: 'orange',
},
secondary:{
width: 1,
height: 4,
color: 'orange',
}
},
hour: {
primary: {
width: 2,
height: 15,
color: 'orange',
},
secondary:{
width: 1,
height: 8,
color: 'orange',
}
}
},
//marker labels
labels = {
primary:{
color: '#666',
font: 14,
},
secondary: {
color: '#666',
font: 10,
}
},
//needle settings
needles = {
primary: {
width: 2,
length: r1,
wheelRadius: 8,
wheelStroke: 2,
color: '#607D8B',
},
secondary: {
width: 1,
length: r2,
wheelRadius: 2.5,
wheelStroke: 5,
color: '#E91E63',
},
tertiary: {
width: 1,
length: r3*0.9,
wheelRadius: 2.5,
wheelStroke: 5,
color: '#E91E63',
}
};
// linear line function
var lineFun = d3.svg.line()
.x(function(d){return d[0];})
.y(function(d){return d[1];})
.interpolate('linear');
//svg element
var svg = d3.select('#drawing')
.attr({
width: w,
height: h,
});
// Scales
var scale = d3.scale.linear()
.range([0, 360]);
var milliSecondScale = scale.copy().domain([0,100]),
secondMarkerScale = scale.copy()
.domain([0, 60*(markers.second.primary.count+1)]),
minuteMarkerScale = scale.copy().domain([0,60]),
hourMarkerScale = scale.copy().domain([0,12]),
labelScale = scale.copy().domain([0,60,5]);
//group for start/stop buttons
var g4 = svg.append('g')
.attr({
transform: 'translate('+ (w/2 ) +','+ ( h/2 + r1/2) +')'
});
//Tertiary clock face for milisecond
var g3 = svg.append('g')
.attr({
'class': 'tertiary',
transform: 'translate('+ (w/2 + r1/2 + needles.primary.wheelRadius) +','+ h/2 +')'
});
//Secondary clock face for minutes
var g2 = svg.append('g')
.attr({
'class': 'secondary',
transform: 'translate('+ w/2 +','+ (h/2 - r1/2 - needles.primary.wheelRadius) +')'
});
//Primary clock face for seconds
var g1 = svg.append('g')
.attr({
'class': 'primary',
transform: 'translate('+ w/2 +','+ h/2 +')',
});
// Draw markers on primary clock face
g1.selectAll('.hour-marker').data(d3.range(0,12))
.enter().append('rect')
.attr({
x: -markers.hour.primary.width/2,
y: - r1 + 2 - markers.hour.primary.height,
width: markers.hour.primary.width,
height: markers.hour.primary.height,
fill: markers.hour.primary.color,
transform: function(d){
return 'rotate('+ hourMarkerScale(d) +')';
},
'class': 'hour-marker',
});
g1.selectAll('.min-marker').data(d3.range(0,60))
.enter().append('rect')
.attr({
x: -markers.minute.primary.width/2,
y: - r1 - markers.minute.primary.height,
width: markers.minute.primary.width,
height: markers.minute.primary.height,
fill: markers.minute.primary.color,
transform: function(d){
return 'rotate('+ minuteMarkerScale(d) +')';
},
'class': 'min-marker',
});
g1.selectAll('.second-marker')
.data(d3.range.apply(null,secondMarkerScale.domain()))
.enter().append('rect')
.attr({
x: -markers.second.primary.width/2,
y: -r1 - markers.minute.primary.height,
width: markers.second.primary.width,
height: markers.second.primary.height,
fill: markers.second.primary.color,
transform: function(d){
return 'rotate('+ secondMarkerScale(d)+')';
},
'class': 'second-marker',
});
g1.selectAll('.minute-label').data(d3.range(5,65,5))
.enter()
.append('g')
.attr({
'class': 'minute-label',
'transform': function(d){
return 'rotate('+ labelScale(d) +')';
}
})
.append('text')
.text(function(d){return d;})
.attr({
"text-anchor": "middle",
"font-family": "sans-serif",
"font-size": 14,
x: 0,
y: -(r1 + markers.hour.primary.height + 8),
dy: 5,
fill: labels.primary.color,
transform: function(d){
var deg = -labelScale(d),
x = d3.select(this).attr('x'),
y = d3.select(this).attr('y');
return 'rotate('+ deg +' ' + x +' '+ y + ')';
}
});
g2.selectAll('.hour-marker').data(d3.range(0,12))
.enter().append('rect')
.attr({
x: -markers.hour.secondary.width/2,
y: - r2 - markers.hour.secondary.height ,
width: markers.hour.secondary.width,
height: markers.hour.secondary.height,
fill: markers.hour.secondary.color,
transform: function(d){
return 'rotate('+ hourMarkerScale(d) +')';
},
'class': 'hour-marker',
});
g2.selectAll('.min-marker').data(d3.range(0,60))
.enter().append('rect')
.attr({
x: -1*markers.minute.secondary.width/2,
y: - r2 - (markers.hour.secondary.height),
width: markers.minute.secondary.width,
height: markers.minute.secondary.height,
fill: markers.minute.secondary.color,
transform: function(d){
return 'rotate('+ minuteMarkerScale(d) +')';
},
'class': 'min-marker',
});
g2.selectAll('.minute-label').data(d3.range(5,65,5))
.enter()
.append('g')
.attr({
'class': 'minute-label',
'transform': function(d){
return 'rotate('+ labelScale(d) +')';
}
})
.append('text')
.text(function(d){return d;})
.attr({
"text-anchor": "middle",
"font-family": "sans-serif",
"font-size": 10,
x: 0,
y: -(r2 + markers.hour.secondary.height + 7),
dy: 4,
fill: labels.secondary.color,
transform: function(d){
var deg = -labelScale(d),
x = d3.select(this).attr('x'),
y = d3.select(this).attr('y');
return 'rotate('+ deg +' ' + x +' '+ y + ')';
}
});
g2.append('circle').attr({
fill: "none",
cx: 0,
cy: 0,
r: r2 + (markers.hour.secondary.height),
stroke: markers.minute.secondary.color,
"stroke-width": 1
});
g3.append('circle').attr({
fill: "none",
cx: 0,
cy: 0,
r: r3,
stroke: markers.second.primary.color,
"stroke-width": 1
});
// BUTTONS
// Button Symbols
var buttons = d3.map([
{type: "triangle-up", size: r4*0.8, id: 'play' },
{type: "square", size: r4*0.9, id:'stop' }
], function(d){
return d.id;
});
// Change Button Symbol
function updateButton(state){
return g4.select('.button')
.transition()
.ease("linear")
.attr({
d: d3.svg.symbol()
.size(function(){
return buttons.get(state)
.size*buttons.get(state).size;})
.type(function(){
return buttons.get(state).type;}),
transform: 'rotate(90)'
});
}
// Draw Button
g4.append("path")
.attr({
d: d3.svg.symbol()
.size(function(){
return buttons.get('play')
.size*buttons.get('play').size;
})
.type(function(){
return buttons.get('play').type;
}),
fill: "#E91E63",
transform: 'rotate(90)',
'class': 'button',
'style': 'cursor: pointer'
}).on('click', function(){
toggleTimer();
g4.select('.reset-timeout').remove();
})
.on('mouseover', function(){
if(!elapsedTime) return;
g4.append("path")
.datum({endAngle: 2*Math.PI})
.attr({
d: arc,
fill: "#E91E63",
class: 'reset-timeout'
})
.transition()
.duration(2000)
.call(arcTween, 0)
.each('end',function(){
resetTimer();
this.remove();
});
})
.on('mouseout', function(){
g4.select('.reset-timeout').transition().duration(0).remove();
});
var arc = d3.svg.arc()
.innerRadius(r4-5)
.outerRadius(r4)
.startAngle(2*Math.PI);
function arcTween(transition, newAngle){
transition.attrTween("d", function(d) {
var interpolate = d3.interpolate(d.endAngle, newAngle);
return function(t) {
d.endAngle = interpolate(t);
return arc(d);
};
});
}
// Timer variables
var timeoutHandle, now, startTime, isStarted = false, elapsedTime = 0;
// Toggle timer state
function toggleTimer(){
isStarted = !isStarted;
g4.select('.reset-timeout').transition();
if(isStarted){
updateButton('stop');
startTime = clock.now();
tick();
}
else {
clearTimeout(timeoutHandle);
updateButton('play');
}
}
var clock = typeof performance === "object" ? performance: Date;
function tick(){
now = clock.now();
elapsedTime = elapsedTime + now - startTime;
startTime = now;
var ms = elapsedTime/10,
seconds = ms/100,
minutes = seconds/60;
updateNeedle(g1.needle, minuteMarkerScale(seconds));
updateNeedle(g2.needle, minuteMarkerScale(minutes));
updateNeedle(g3.needle, milliSecondScale(ms));
timeoutHandle = setTimeout(tick,0);
}
function resetTimer(){
clearTimeout(timeoutHandle);
isStarted = false;
updateButton('play');
elapsedTime = now = startTime = 0;
updateNeedle(g1.needle, minuteMarkerScale(0), 500);
updateNeedle(g2.needle, minuteMarkerScale(0), 500);
updateNeedle(g3.needle, milliSecondScale(0), 500);
}
// Clock Needle/Hand
//data for needle shape
function needleData(data){
var wa = data.width,
wb = data.width*3,
lb = data.wheelRadius + 5,
la = data.length - lb;
return [
[wb/2, lb],
[wb/2, -lb],
[wa/2,-lb],
[wa/2,-la-lb],
[-wa/2,-la-lb],
[-wa/2,-lb],
[-wb/2,-lb],
[-wb/2,lb]
];
}
//draw needle
function drawNeedle(g, data){
g.needle = g.append('g');
// Needle Shape
g.needle.append('path')
.attr({
d: lineFun(needleData(data)),
class: 'needle',
fill: data.color,
"stroke-width": 0
});
// Needle Wheel
g.needle.append('circle')
.attr({
r: data.wheelRadius,
fill: "#fff",
stroke: data.color,
"stroke-width": data.wheelStroke
});
}
// update needle angle
function updateNeedle(needle, angle, transition){
transition = transition || 0;
needle
.transition()
.duration(transition)
.ease('quad-out')
.attr({
transform: "rotate("+ angle +")"
});
}
drawNeedle(g1, needles.primary);
drawNeedle(g2, needles.secondary);
drawNeedle(g3, needles.tertiary);
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment