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d3 - Swimlane zoomable
<!--
The MIT License (MIT)
Copyright (c) 2013 bill@bunkat.com
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-->
<html>
<head>
<title>Swimlane using d3.js</title>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.v2.js"></script>
<script type="text/javascript" src="randomData.js"></script>
<style>
.chart {
shape-rendering: crispEdges;
}
.mini text {
font: 9px sans-serif;
}
.main text {
font: 12px sans-serif;
}
.month text {
text-anchor: start;
}
.todayLine {
stroke: blue;
stroke-width: 1.5;
}
.axis line, .axis path {
stroke: black;
}
.miniItem {
stroke-width: 6;
}
.future {
stroke: gray;
fill: #ddd;
}
.past {
stroke: green;
fill: lightgreen;
}
.brush .extent {
stroke: gray;
fill: blue;
fill-opacity: .165;
}
</style>
</head>
<body>
<script type="text/javascript">
var data = randomData()
, lanes = data.lanes
, items = data.items
, now = new Date();
var margin = {top: 20, right: 15, bottom: 15, left: 60}
, width = 960 - margin.left - margin.right
, height = 500 - margin.top - margin.bottom
, miniHeight = lanes.length * 12 + 50
, mainHeight = height - miniHeight - 50;
var x = d3.time.scale()
.domain([d3.time.sunday(d3.min(items, function(d) { return d.start; })),
d3.max(items, function(d) { return d.end; })])
.range([0, width]);
var x1 = d3.time.scale().range([0, width]);
var ext = d3.extent(lanes, function(d) { return d.id; });
var y1 = d3.scale.linear().domain([ext[0], ext[1] + 1]).range([0, mainHeight]);
var y2 = d3.scale.linear().domain([ext[0], ext[1] + 1]).range([0, miniHeight]);
var chart = d3.select('body')
.append('svg:svg')
.attr('width', width + margin.right + margin.left)
.attr('height', height + margin.top + margin.bottom)
.attr('class', 'chart');
chart.append('defs').append('clipPath')
.attr('id', 'clip')
.append('rect')
.attr('width', width)
.attr('height', mainHeight);
var main = chart.append('g')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')')
.attr('width', width)
.attr('height', mainHeight)
.attr('class', 'main');
var mini = chart.append('g')
.attr('transform', 'translate(' + margin.left + ',' + (mainHeight + 60) + ')')
.attr('width', width)
.attr('height', miniHeight)
.attr('class', 'mini');
// draw the lanes for the main chart
main.append('g').selectAll('.laneLines')
.data(lanes)
.enter().append('line')
.attr('x1', 0)
.attr('y1', function(d) { return d3.round(y1(d.id)) + 0.5; })
.attr('x2', width)
.attr('y2', function(d) { return d3.round(y1(d.id)) + 0.5; })
.attr('stroke', function(d) { return d.label === '' ? 'white' : 'lightgray' });
main.append('g').selectAll('.laneText')
.data(lanes)
.enter().append('text')
.text(function(d) { return d.label; })
.attr('x', -10)
.attr('y', function(d) { return y1(d.id + .5); })
.attr('dy', '0.5ex')
.attr('text-anchor', 'end')
.attr('class', 'laneText');
// draw the lanes for the mini chart
mini.append('g').selectAll('.laneLines')
.data(lanes)
.enter().append('line')
.attr('x1', 0)
.attr('y1', function(d) { return d3.round(y2(d.id)) + 0.5; })
.attr('x2', width)
.attr('y2', function(d) { return d3.round(y2(d.id)) + 0.5; })
.attr('stroke', function(d) { return d.label === '' ? 'white' : 'lightgray' });
mini.append('g').selectAll('.laneText')
.data(lanes)
.enter().append('text')
.text(function(d) { return d.label; })
.attr('x', -10)
.attr('y', function(d) { return y2(d.id + .5); })
.attr('dy', '0.5ex')
.attr('text-anchor', 'end')
.attr('class', 'laneText');
// draw the x axis
var xDateAxis = d3.svg.axis()
.scale(x)
.orient('bottom')
.ticks(d3.time.mondays, (x.domain()[1] - x.domain()[0]) > 15552e6 ? 2 : 1)
.tickFormat(d3.time.format('%d'))
.tickSize(6, 0, 0);
var x1DateAxis = d3.svg.axis()
.scale(x1)
.orient('bottom')
.ticks(d3.time.days, 1)
.tickFormat(d3.time.format('%a %d'))
.tickSize(6, 0, 0);
var xMonthAxis = d3.svg.axis()
.scale(x)
.orient('top')
.ticks(d3.time.months, 1)
.tickFormat(d3.time.format('%b %Y'))
.tickSize(15, 0, 0);
var x1MonthAxis = d3.svg.axis()
.scale(x1)
.orient('top')
.ticks(d3.time.mondays, 1)
.tickFormat(d3.time.format('%b - Week %W'))
.tickSize(15, 0, 0);
main.append('g')
.attr('transform', 'translate(0,' + mainHeight + ')')
.attr('class', 'main axis date')
.call(x1DateAxis);
main.append('g')
.attr('transform', 'translate(0,0.5)')
.attr('class', 'main axis month')
.call(x1MonthAxis)
.selectAll('text')
.attr('dx', 5)
.attr('dy', 12);
mini.append('g')
.attr('transform', 'translate(0,' + miniHeight + ')')
.attr('class', 'axis date')
.call(xDateAxis);
mini.append('g')
.attr('transform', 'translate(0,0.5)')
.attr('class', 'axis month')
.call(xMonthAxis)
.selectAll('text')
.attr('dx', 5)
.attr('dy', 12);
// draw a line representing today's date
main.append('line')
.attr('y1', 0)
.attr('y2', mainHeight)
.attr('class', 'main todayLine')
.attr('clip-path', 'url(#clip)');
mini.append('line')
.attr('x1', x(now) + 0.5)
.attr('y1', 0)
.attr('x2', x(now) + 0.5)
.attr('y2', miniHeight)
.attr('class', 'todayLine');
// draw the items
var itemRects = main.append('g')
.attr('clip-path', 'url(#clip)');
mini.append('g').selectAll('miniItems')
.data(getPaths(items))
.enter().append('path')
.attr('class', function(d) { return 'miniItem ' + d.class; })
.attr('d', function(d) { return d.path; });
// invisible hit area to move around the selection window
mini.append('rect')
.attr('pointer-events', 'painted')
.attr('width', width)
.attr('height', miniHeight)
.attr('visibility', 'hidden')
.on('mouseup', moveBrush);
// draw the selection area
var brush = d3.svg.brush()
.x(x)
.extent([d3.time.monday(now),d3.time.saturday.ceil(now)])
.on("brush", display);
mini.append('g')
.attr('class', 'x brush')
.call(brush)
.selectAll('rect')
.attr('y', 1)
.attr('height', miniHeight - 1);
mini.selectAll('rect.background').remove();
display();
function display () {
var rects, labels
, minExtent = d3.time.day(brush.extent()[0])
, maxExtent = d3.time.day(brush.extent()[1])
, visItems = items.filter(function (d) { return d.start < maxExtent && d.end > minExtent});
mini.select('.brush').call(brush.extent([minExtent, maxExtent]));
x1.domain([minExtent, maxExtent]);
if ((maxExtent - minExtent) > 1468800000) {
x1DateAxis.ticks(d3.time.mondays, 1).tickFormat(d3.time.format('%a %d'))
x1MonthAxis.ticks(d3.time.mondays, 1).tickFormat(d3.time.format('%b - Week %W'))
}
else if ((maxExtent - minExtent) > 172800000) {
x1DateAxis.ticks(d3.time.days, 1).tickFormat(d3.time.format('%a %d'))
x1MonthAxis.ticks(d3.time.mondays, 1).tickFormat(d3.time.format('%b - Week %W'))
}
else {
x1DateAxis.ticks(d3.time.hours, 4).tickFormat(d3.time.format('%I %p'))
x1MonthAxis.ticks(d3.time.days, 1).tickFormat(d3.time.format('%b %e'))
}
//x1Offset.range([0, x1(d3.time.day.ceil(now) - x1(d3.time.day.floor(now)))]);
// shift the today line
main.select('.main.todayLine')
.attr('x1', x1(now) + 0.5)
.attr('x2', x1(now) + 0.5);
// update the axis
main.select('.main.axis.date').call(x1DateAxis);
main.select('.main.axis.month').call(x1MonthAxis)
.selectAll('text')
.attr('dx', 5)
.attr('dy', 12);
// upate the item rects
rects = itemRects.selectAll('rect')
.data(visItems, function (d) { return d.id; })
.attr('x', function(d) { return x1(d.start); })
.attr('width', function(d) { return x1(d.end) - x1(d.start); });
rects.enter().append('rect')
.attr('x', function(d) { return x1(d.start); })
.attr('y', function(d) { return y1(d.lane) + .1 * y1(1) + 0.5; })
.attr('width', function(d) { return x1(d.end) - x1(d.start); })
.attr('height', function(d) { return .8 * y1(1); })
.attr('class', function(d) { return 'mainItem ' + d.class; });
rects.exit().remove();
// update the item labels
labels = itemRects.selectAll('text')
.data(visItems, function (d) { return d.id; })
.attr('x', function(d) { return x1(Math.max(d.start, minExtent)) + 2; });
labels.enter().append('text')
.text(function (d) { return 'Item\n\n\n\n Id: ' + d.id; })
.attr('x', function(d) { return x1(Math.max(d.start, minExtent)) + 2; })
.attr('y', function(d) { return y1(d.lane) + .4 * y1(1) + 0.5; })
.attr('text-anchor', 'start')
.attr('class', 'itemLabel');
labels.exit().remove();
}
function moveBrush () {
var origin = d3.mouse(this)
, point = x.invert(origin[0])
, halfExtent = (brush.extent()[1].getTime() - brush.extent()[0].getTime()) / 2
, start = new Date(point.getTime() - halfExtent)
, end = new Date(point.getTime() + halfExtent);
brush.extent([start,end]);
display();
}
// generates a single path for each item class in the mini display
// ugly - but draws mini 2x faster than append lines or line generator
// is there a better way to do a bunch of lines as a single path with d3?
function getPaths(items) {
var paths = {}, d, offset = .5 * y2(1) + 0.5, result = [];
for (var i = 0; i < items.length; i++) {
d = items[i];
if (!paths[d.class]) paths[d.class] = '';
paths[d.class] += ['M',x(d.start),(y2(d.lane) + offset),'H',x(d.end)].join(' ');
}
for (var className in paths) {
result.push({class: className, path: paths[className]});
}
return result;
}
</script>
</body>
</html>
(function() {
"use strict";
var RandomData = function() {
var addToLane = function (chart, item) {
var name = item.lane;
if (!chart.lanes[name])
chart.lanes[name] = [];
var lane = chart.lanes[name];
var sublane = 0;
while(isOverlapping(item, lane[sublane]))
sublane++;
if (!lane[sublane]) {
lane[sublane] = [];
}
lane[sublane].push(item);
};
var isOverlapping = function(item, lane) {
if (lane) {
for (var i = 0; i < lane.length; i++) {
var t = lane[i];
if (item.start < t.end && item.end > t.start) {
return true;
}
}
}
return false;
};
var parseData = function (data) {
var i = 0, length = data.length, node;
chart = { lanes: {} };
for (i; i < length; i++) {
var item = data[i];
addToLane(chart, item);
}
return collapseLanes(chart);
};
var collapseLanes = function (chart) {
var lanes = [], items = [], laneId = 0;
var now = new Date();
for (var laneName in chart.lanes) {
var lane = chart.lanes[laneName];
for (var i = 0; i < lane.length; i++) {
var subLane = lane[i];
lanes.push({
id: laneId,
label: i === 0 ? laneName : ''
});
for (var j = 0; j < subLane.length; j++) {
var item = subLane[j];
items.push({
id: item.id,
lane: laneId,
start: item.start,
end: item.end,
class: item.end > now ? 'future' : 'past',
desc: item.desc
});
}
laneId++;
}
}
return {lanes: lanes, items: items};
}
var randomNumber = function(min, max) {
return Math.floor(Math.random(0, 1) * (max - min)) + min;
};
var generateRandomWorkItems = function () {
var data = [];
var laneCount = randomNumber(50,67)
, totalWorkItems = randomNumber(200,300)
, startMonth = randomNumber(0,1)
, startDay = randomNumber(1,28)
, totalMonths = randomNumber(4,10);
for (var i = 0; i < laneCount; i++) {
var dt = new Date(2012, startMonth, startDay);
for (var j = 0; j < totalWorkItems; j++) {
var dtS = new Date(dt.getFullYear(), dt.getMonth(), dt.getDate() + randomNumber(1,5), randomNumber(8, 16), 0, 0);
var dateOffset = randomNumber(0,7);
var dt = new Date(dtS.getFullYear(), dtS.getMonth(), dtS.getDate() + dateOffset, randomNumber(dateOffset === 0 ? dtS.getHours() + 2 : 8, 18), 0, 0);
var workItem = {
id: i * totalWorkItems + j,
name: 'work item ' + j,
lane: 'lane ' + i,
start: dtS,
end: dt,
desc: 'This is a description.'
};
data.push(workItem);
}
}
return data;
};
return parseData(generateRandomWorkItems());
};
/**
* Allow library to be used within both the browser and node.js
*/
var root = typeof exports !== "undefined" && exports !== null ? exports : window;
root.randomData = RandomData;
}).call(this);
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