Format de date correct pour Rickshaw

Question

J'utilise Rickshaw pour construire un graphique linéaire qui montrera les vitesses à différents moments.

Mes données ressemble:

[{"x":1484124298856,"y":10},{"x":1484124300949,"y":10},{"x":1484124303142,"y":6},{"x":1484124305543,"y":7},{"x":1484124308544,"y":11},{"x":1484124310415,"y":8},{"x":1484124312038,"y":6},{"x":1484124313609,"y":10},{"x":1484124315152,"y":9},{"x":1484124316804,"y":4},{"x":1484124318638,"y":4},{"x":1484124320577,"y":8},{"x":1484124323127,"y":11},{"x":1484124325787,"y":3},{"x":1484124332703,"y":7},{"x":1484124340367,"y":2},{"x":1484124343787,"y":6},{"x":1484124348003,"y":9},{"x":1484124358932,"y":1},{"x":1484124363545,"y":9},{"x":1484124365670,"y":4},{"x":1484124367744,"y":6},{"x":1484124370212,"y":8},{"x":1484124372633,"y":2},{"x":1484124374960,"y":10},{"x":1484124377234,"y":9},{"x":1484124379623,"y":5},{"x":1484124382105,"y":4},{"x":1484124384763,"y":7},{"x":1484124387649,"y":5},{"x":1484124389965,"y":4},{"x":1484124391586,"y":3},{"x":1484124393010,"y":8},{"x":1484124394309,"y":10},{"x":1484124395588,"y":9},{"x":1484124396844,"y":10},{"x":1484124398047,"y":2},{"x":1484124399222,"y":1},{"x":1484124400324,"y":10},{"x":1484124401497,"y":4},{"x":1484124402787,"y":6},{"x":1484124405196,"y":2},{"x":1484124407560,"y":11},{"x":1484124409613,"y":2},{"x":1484124411312,"y":3},{"x":1484124412982,"y":3},{"x":1484124414386,"y":8},{"x":1484124415735,"y":6},{"x":1484124417047,"y":4},{"x":1484124418433,"y":8},{"x":1484124420174,"y":4},{"x":1484124423064,"y":5},{"x":1484124425978,"y":1},{"x":1484124428110,"y":9},{"x":1484124429807,"y":5},{"x":1484124431495,"y":9},{"x":1484124433077,"y":2},{"x":1484124434563,"y":1},{"x":1484124435975,"y":6},{"x":1484124437624,"y":6},{"x":1484124440760,"y":4},{"x":1484124444016,"y":6},{"x":1484124446655,"y":10},{"x":1484124448596,"y":2},{"x":1484124450839,"y":7},{"x":1484124452820,"y":6},{"x":1484124454660,"y":6},{"x":1484124456322,"y":10},{"x":1484124457993,"y":11},{"x":1484124459839,"y":5},{"x":1484124462118,"y":9},{"x":1484124464724,"y":6},{"x":1484124467396,"y":7},{"x":1484124470081,"y":3},{"x":1484124475097,"y":10},{"x":1484124484548,"y":2},{"x":1484124498625,"y":10},{"x":1484124526543,"y":2},{"x":1484124531178,"y":6},{"x":1484124536233,"y":11},{"x":1484124571541,"y":1},{"x":1484124595464,"y":7}] 

où X est le temps (en secondes Unix) et Y est la vitesse (en MPH).

Mon axe X et l'axe Y est la suivante:

var x_ticks = new Rickshaw.Graph.Axis.Time({ 
    graph: graph, 
    orientation: 'bottom', 
    timeFixture: new Rickshaw.Fixtures.Time.Local() 
    element: document.getElementById('x_axis') 
}); 

var y_ticks = new Rickshaw.Graph.Axis.Y({ 
    graph: graph, 
    orientation: 'left', 
    tickFormat: Rickshaw.Fixtures.Number.formatKMBT, 
    element: document.getElementById('y_axis') 
}); 

Et le graphique principal:

var graph = new Rickshaw.Graph({ 
    element: document.getElementById("speedGraph"), 
    renderer: 'line', 
    width: $('#speedGraph').width(), 
    height: $('#speedGraph').height(), 
    series: [ 
    { 
     data: data, 
     color: "#c05020" 
    } 
    ] 
}); 
graph.render(); 

Mais je vois les dates incorrectes sur l'axe X. Par exemple, les données ci-dessus sont toutes sur le 11 Janvier 2016, mais à des moments différents. Cependant, les étiquettes que je vois sur le graphique sont les suivantes:

Selon les docs Rickshaw attend des dates pour être sous Unix TimeStamps devrait donc être comprendre l'amende de données.

1. Pourquoi les étiquettes affichent-elles la mauvaise date?

2. Comment montrer l'étiquette sur l'axe sous forme de temps? par exemple: 9h00, 10h00, 11h00, etc.

Il ne s'agit pas simplement d'un problème de mise en forme sur les étiquettes. Rickshaw lit les horodatages mal!

Answer 1

1. X (13 chiffres) est pas un UNIX time-stamp(10 chiffres). Selon vos données, X est le total des millisecondes du jour ZERO-DAY et l'horodatage est le total des SECONDES du ZERO-DAY. Il doit donc être converti en un horodatage valide.

data.forEach(function (element) { element.x = Math.floor(element.x/1000); }); 

2. Vous pouvez utiliser un predefined configuration ou écrire votre commande. Lorsque timeUnit n'est pas spécifié, le cadre detects and sets a suitable unit.

/* Using a predefined time unit formatting for x-axis ... */ 
var xAxisUnit = new Rickshaw.Fixtures.Time().unit('minute'); 

/* Custom time unit formatting for x-axis ... */ 
var xAxisUnit = { 
    name: 'custom', 
    seconds: 30, 
    formatter: function (d) { 
    return d.getUTCMinutes() + 'm :' + d.getUTCSeconds() + 's'; 
    } 
} 

new Rickshaw.Graph.Axis.Time({ 
    graph: graph, 
    timeFixture: new Rickshaw.Fixtures.Time.Local(), 
    timeUnit: xAxisUnit 
}); 

J'ai édité le rickshaw example pour correspondre à vos besoins:

var data = [{ "x": 1484124298856, "y": 10 }, { "x": 1484124300949, "y": 10 }, { "x": 1484124303142, "y": 6 }, { "x": 1484124305543, "y": 7 }, { "x": 1484124308544, "y": 11 }, { "x": 1484124310415, "y": 8 }, { "x": 1484124312038, "y": 6 }, { "x": 1484124313609, "y": 10 }, { "x": 1484124315152, "y": 9 }, { "x": 1484124316804, "y": 4 }, { "x": 1484124318638, "y": 4 }, { "x": 1484124320577, "y": 8 }, { "x": 1484124323127, "y": 11 }, { "x": 1484124325787, "y": 3 }, { "x": 1484124332703, "y": 7 }, { "x": 1484124340367, "y": 2 }, { "x": 1484124343787, "y": 6 }, { "x": 1484124348003, "y": 9 }, { "x": 1484124358932, "y": 1 }, { "x": 1484124363545, "y": 9 }, { "x": 1484124365670, "y": 4 }, { "x": 1484124367744, "y": 6 }, { "x": 1484124370212, "y": 8 }, { "x": 1484124372633, "y": 2 }, { "x": 1484124374960, "y": 10 }, { "x": 1484124377234, "y": 9 }, { "x": 1484124379623, "y": 5 }, { "x": 1484124382105, "y": 4 }, { "x": 1484124384763, "y": 7 }, { "x": 1484124387649, "y": 5 }, { "x": 1484124389965, "y": 4 }, { "x": 1484124391586, "y": 3 }, { "x": 1484124393010, "y": 8 }, { "x": 1484124394309, "y": 10 }, { "x": 1484124395588, "y": 9 }, { "x": 1484124396844, "y": 10 }, { "x": 1484124398047, "y": 2 }, { "x": 1484124399222, "y": 1 }, { "x": 1484124400324, "y": 10 }, { "x": 1484124401497, "y": 4 }, { "x": 1484124402787, "y": 6 }, { "x": 1484124405196, "y": 2 }, { "x": 1484124407560, "y": 11 }, { "x": 1484124409613, "y": 2 }, { "x": 1484124411312, "y": 3 }, { "x": 1484124412982, "y": 3 }, { "x": 1484124414386, "y": 8 }, { "x": 1484124415735, "y": 6 }, { "x": 1484124417047, "y": 4 }, { "x": 1484124418433, "y": 8 }, { "x": 1484124420174, "y": 4 }, { "x": 1484124423064, "y": 5 }, { "x": 1484124425978, "y": 1 }, { "x": 1484124428110, "y": 9 }, { "x": 1484124429807, "y": 5 }, { "x": 1484124431495, "y": 9 }, { "x": 1484124433077, "y": 2 }, { "x": 1484124434563, "y": 1 }, { "x": 1484124435975, "y": 6 }, { "x": 1484124437624, "y": 6 }, { "x": 1484124440760, "y": 4 }, { "x": 1484124444016, "y": 6 }, { "x": 1484124446655, "y": 10 }, { "x": 1484124448596, "y": 2 }, { "x": 1484124450839, "y": 7 }, { "x": 1484124452820, "y": 6 }, { "x": 1484124454660, "y": 6 }, { "x": 1484124456322, "y": 10 }, { "x": 1484124457993, "y": 11 }, { "x": 1484124459839, "y": 5 }, { "x": 1484124462118, "y": 9 }, { "x": 1484124464724, "y": 6 }, { "x": 1484124467396, "y": 7 }, { "x": 1484124470081, "y": 3 }, { "x": 1484124475097, "y": 10 }, { "x": 1484124484548, "y": 2 }, { "x": 1484124498625, "y": 10 }, { "x": 1484124526543, "y": 2 }, { "x": 1484124531178, "y": 6 }, { "x": 1484124536233, "y": 11 }, { "x": 1484124571541, "y": 1 }, { "x": 1484124595464, "y": 7 }]; 
 

 
    /* converting to valid UNIX timestamp ...*/ 
 
    data.forEach(function (element) { element.x = Math.floor(element.x/1000); }) 
 
    /* sorting in ASC to get MIN and MAX for Y-axis ... */ 
 
    data.sort(function (a, b) { return a.y - b.y; }); 
 
    /* creating a scale for Y-Axis with MIN and MAX of Y-Axis values ..*/ 
 
    var scale = d3.scale.linear().domain([data[0].y, data[data.length - 1].y]).nice(); 
 
    
 
    /* sorting data by X values in asending order.... */ 
 
    data.sort(function (a, b) { return a.x - b.x; }); 
 

 
    var graph = new Rickshaw.Graph({ 
 
    element: document.getElementById("chart"), 
 
    renderer: 'line', 
 
    series: [{ 
 
     color: 'steelblue', 
 
     data: data, 
 
     name: 'Series A', 
 
     scale: scale 
 
    }] 
 
    }); 
 

 
    /* Using a predefined time unit formatting for x-axis ... */ 
 
    //var xAxisUnit = new Rickshaw.Fixtures.Time().unit('minute'); 
 

 
    /* Custom time unit formatting for x-axis ... */ 
 
    var xAxisUnit = { 
 
    name: 'custom', 
 
    seconds: 30, 
 
    formatter: function (d) { 
 
     /* formatting via minutes: seconds. NOTE UTC is being used, and those functions are from the default JS Date class .... */ 
 
     return d.getUTCMinutes() + 'm :' + d.getUTCSeconds() + 's'; 
 
    } 
 
    } 
 

 
    new Rickshaw.Graph.Axis.Time({ 
 
    graph: graph, 
 
    timeFixture: new Rickshaw.Fixtures.Time.Local(), 
 
    timeUnit: xAxisUnit 
 
    }); 
 

 
    new Rickshaw.Graph.Axis.Y.Scaled({ 
 
    element: document.getElementById('axis0'), 
 
    graph: graph, 
 
    scale: scale, 
 
    orientation: 'left', 
 
    tickFormat: Rickshaw.Fixtures.Number.formatKMBT 
 
    }); 
 

 
    new Rickshaw.Graph.HoverDetail({ 
 
    graph: graph 
 
    }); 
 

 
    graph.render();

#axis0 { 
 
    position: absolute; 
 
    height: 800px; 
 
    width: 40px; 
 
    } 
 
    #axis1 { 
 
    position: absolute; 
 
    left: 1050px; 
 
    height: 800px; 
 
    width: 40px; 
 
    } 
 
    #chart { 
 
    left: 50px; 
 
    width: 1000px; 
 
    position: absolute; 
 
    }

<link href="http://code.shutterstock.com/rickshaw/src/css/graph.css" rel="stylesheet"/> 
 
<link href="http://code.shutterstock.com/rickshaw/src/css/detail.css" rel="stylesheet"/> 
 
<link href="http://code.shutterstock.com/rickshaw/examples/css/lines.css" rel="stylesheet"/> 
 

 
<script src="http://code.shutterstock.com/rickshaw/vendor/d3.v3.js"></script> 
 
<script src="http://code.shutterstock.com/rickshaw/rickshaw.js"></script> 
 

 
<div id="axis0"></div> 
 
<div id="chart"></div>