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Last active December 5, 2015 03:01
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Negative Relative Time Ticks
Raw
README.md

This example shows one solution for how to get d3 axis ticks to display relative time (durations) into the past by hour and minute [-01:30, -01:00, -00:30, 00:00, 00:30, 01:30].

forked from mbostock's block: Time of Day

web counter
Raw
index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.dots path {
fill: none;
stroke: steelblue;
stroke-width: 1.5px;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.axis--y line {
stroke-opacity: 0.2;
}
.axis--y path {
stroke: none;
}
.axis text {
font: 10px sans-serif;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
// This custom tick mark formatter displays signed hours and minutes
// relative to the given "zeroTime" date.
function relativeTimeFormatter(zeroTime){
return function (d){
var minutesNegative = d3.time.minutes(d, zeroTime).length;
var minutesPositive = d3.time.minutes(zeroTime, d).length;
var minutes = minutesNegative ? minutesNegative : minutesPositive;
var hours = Math.floor(minutes / 60);
var sign = minutesNegative ? "-" : "";
hours = addLeadingZero(hours);
minutes = (minutes % 60);
minutes = addLeadingZero(minutes);
return sign + hours + ":" + minutes;
}
}
function addLeadingZero(number){
return (number < 10 ? "0" : "") + number;
}
var parseTime = d3.time.format.utc("%H:%M").parse,
zeroTime = parseTime("10:00");
var margin = {top: 30, right: 30, bottom: 30, left: 30},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x = d3.time.scale.utc()
.domain([
// 3 hours before zero time.
d3.time.hour.utc.offset(zeroTime, -3),
// 2 hours after zero time.
d3.time.hour.utc.offset(zeroTime, 2)
])
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var svg = 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 + ")");
d3.csv("tweets.csv", type, function(error, data) {
if (error) throw error;
y.domain([0, d3.max(data, function(d) { return d.rate; })]);
svg.append("g")
.attr("class", "axis axis--x")
.attr("transform", "translate(0," + height + ")")
.call(d3.svg.axis()
.scale(x)
.orient("bottom")
.tickFormat(relativeTimeFormatter(zeroTime)));
svg.append("g")
.attr("class", "dots")
.selectAll("path")
.data(data)
.enter().append("path")
.attr("transform", function(d) { return "translate(" + x(d.time) + "," + y(d.rate) + ")"; })
.attr("d", d3.svg.symbol()
.size(40));
var tick = svg.append("g")
.attr("class", "axis axis--y")
.call(d3.svg.axis()
.scale(y)
.tickSize(-width)
.orient("left"))
.select(".tick:last-of-type");
var title = tick.append("text")
.attr("dy", ".32em")
.text("tweets per hour");
tick.select("line")
.attr("x1", title.node().getBBox().width + 6);
});
function type(d) {
d.rate = +d.count / 327 * 60; // January 8 to November 30
d.time = parseTime(d.time);
d.time.setUTCHours((d.time.getUTCHours() + 24 - 7) % 24);
return d;
}
</script>
Raw
tweets.csv
count time
358 00:00
372 00:01
344 00:02
388 00:03
324 00:04
349 00:05
389 00:06
368 00:07
358 00:08
309 00:09
357 00:10
349 00:11
374 00:12
336 00:13
338 00:14
380 00:15
326 00:16
363 00:17
347 00:18
377 00:19
390 00:20
355 00:21
304 00:22
328 00:23
338 00:24
374 00:25
340 00:26
367 00:27
339 00:28
349 00:29
384 00:30
404 00:31
362 00:32
337 00:33
353 00:34
343 00:35
343 00:36
349 00:37
351 00:38
389 00:39
347 00:40
352 00:41
383 00:42
351 00:43
347 00:44
323 00:45
371 00:46
357 00:47
360 00:48
357 00:49
337 00:50
369 00:51
370 00:52
372 00:53
361 00:54
351 00:55
387 00:56
324 00:57
358 00:58
340 00:59
337 01:00
336 01:01
346 01:02
314 01:03
339 01:04
334 01:05
326 01:06
329 01:07
336 01:08
338 01:09
359 01:10
330 01:11
359 01:12
331 01:13
366 01:14
311 01:15
352 01:16
373 01:17
360 01:18
375 01:19
339 01:20
358 01:21
330 01:22
361 01:23
352 01:24
339 01:25
329 01:26
318 01:27
342 01:28
322 01:29
355 01:30
332 01:31
356 01:32
377 01:33
373 01:34
344 01:35
344 01:36
357 01:37
338 01:38
342 01:39
352 01:40
334 01:41
346 01:42
315 01:43
334 01:44
329 01:45
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368 01:50
314 01:51
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355 01:58
339 01:59
345 02:00
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467 18:59
483 19:00
473 19:01
480 19:02
462 19:03
491 19:04
462 19:05
448 19:06
444 19:07
471 19:08
453 19:09
466 19:10
427 19:11
439 19:12
483 19:13
418 19:14
420 19:15
421 19:16
442 19:17
439 19:18
409 19:19
458 19:20
457 19:21
420 19:22
448 19:23
424 19:24
448 19:25
446 19:26
406 19:27
510 19:28
447 19:29
451 19:30
456 19:31
461 19:32
468 19:33
392 19:34
394 19:35
409 19:36
377 19:37
429 19:38
419 19:39
424 19:40
412 19:41
421 19:42
437 19:43
401 19:44
427 19:45
483 19:46
425 19:47
414 19:48
453 19:49
459 19:50
462 19:51
432 19:52
455 19:53
437 19:54
416 19:55
438 19:56
436 19:57
429 19:58
414 19:59
410 20:00
474 20:01
404 20:02
490 20:03
441 20:04
425 20:05
429 20:06
408 20:07
460 20:08
445 20:09
387 20:10
427 20:11
406 20:12
406 20:13
396 20:14
435 20:15
416 20:16
401 20:17
438 20:18
421 20:19
427 20:20
464 20:21
411 20:22
425 20:23
431 20:24
442 20:25
436 20:26
440 20:27
421 20:28
420 20:29
407 20:30
403 20:31
418 20:32
402 20:33
402 20:34
414 20:35
455 20:36
405 20:37
440 20:38
418 20:39
437 20:40
386 20:41
416 20:42
383 20:43
405 20:44
389 20:45
424 20:46
446 20:47
441 20:48
401 20:49
414 20:50
461 20:51
404 20:52
389 20:53
403 20:54
455 20:55
411 20:56
404 20:57
420 20:58
430 20:59
435 21:00
381 21:01
390 21:02
445 21:03
442 21:04
400 21:05
395 21:06
402 21:07
370 21:08
421 21:09
393 21:10
404 21:11
418 21:12
428 21:13
413 21:14
442 21:15
383 21:16
422 21:17
426 21:18
410 21:19
382 21:20
411 21:21
406 21:22
429 21:23
384 21:24
372 21:25
409 21:26
397 21:27
364 21:28
382 21:29
415 21:30
385 21:31
369 21:32
380 21:33
391 21:34
413 21:35
371 21:36
361 21:37
422 21:38
394 21:39
393 21:40
372 21:41
370 21:42
434 21:43
411 21:44
441 21:45
422 21:46
394 21:47
382 21:48
395 21:49
383 21:50
402 21:51
370 21:52
381 21:53
373 21:54
393 21:55
366 21:56
400 21:57
398 21:58
380 21:59
392 22:00
406 22:01
377 22:02
405 22:03
381 22:04
405 22:05
401 22:06
377 22:07
362 22:08
409 22:09
398 22:10
373 22:11
408 22:12
398 22:13
367 22:14
410 22:15
391 22:16
369 22:17
360 22:18
348 22:19
338 22:20
376 22:21
311 22:22
340 22:23
381 22:24
346 22:25
372 22:26
352 22:27
361 22:28
325 22:29
340 22:30
359 22:31
342 22:32
346 22:33
364 22:34
341 22:35
360 22:36
403 22:37
376 22:38
392 22:39
370 22:40
376 22:41
395 22:42
356 22:43
352 22:44
357 22:45
404 22:46
397 22:47
374 22:48
342 22:49
355 22:50
374 22:51
346 22:52
379 22:53
368 22:54
378 22:55
367 22:56
382 22:57
393 22:58
376 22:59
382 23:00
378 23:01
375 23:02
378 23:03
369 23:04
357 23:05
371 23:06
350 23:07
350 23:08
372 23:09
343 23:10
391 23:11
380 23:12
407 23:13
368 23:14
391 23:15
351 23:16
370 23:17
349 23:18
386 23:19
432 23:20
355 23:21
384 23:22
365 23:23
367 23:24
363 23:25
372 23:26
374 23:27
347 23:28
360 23:29
372 23:30
358 23:31
356 23:32
328 23:33
347 23:34
365 23:35
340 23:36
359 23:37
359 23:38
368 23:39
350 23:40
342 23:41
420 23:42
386 23:43
339 23:44
349 23:45
369 23:46
395 23:47
343 23:48
368 23:49
427 23:50
368 23:51
370 23:52
334 23:53
369 23:54
373 23:55
352 23:56
390 23:57
366 23:58
330 23:59
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