[D3js] Histogrammes décalés

Bonjour j'ai fait un graphique avec la librairie d3, mais mes histogrammes sont décalés par rapport aux axes verticaux, et la ligne tout à gauche est trop grande, est-ce que vous pourriez m'aider à corriger ça svp ? Merci !

Code:

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="">
    <meta name="author" content="">
 
    <title>Positive and Negative Value Bar Chart</title>
 
 
    <script type="text/javascript" src="http://d3js.org/d3.v3.min.js"></script>
   <script src="https://code.jquery.com/jquery-1.10.2.min.js"></script>
   <style>
   body{
	font-family: sans-serif;
}
.positive{
		fill: lightsteelblue;
		fill-opacity: 0.9;
	}
.negative{
		fill: darkred;
		fill-opacity: 0.9;
	}
.axis path,
.axis line {
			fill: none;
			stroke: black;
			shape-rendering: crispEdges;
	}
.axis text {
			font-family: sans-serif;
			font-size: 10px;	
	}
div.tooltip {   
	  position: absolute;     
	  text-align: center;
	  vertical-align: middle;   
	  width: 150px;                  
	  height: 50px;                 
	  padding: 5px; 
	  color: #000000;          
	  font-size: 12px;     
	  background: #FFF;
	  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
	  border: 2px;  
	  border-radius: 8px;  
	  pointer-events: none;                  
	} 
li{
	overflow:hidden;
	display: inline-block;
}
ul{
	padding-left: 0;
	padding-right: 0;
}
#chart-container{
	float:left;
}
   </style>
  </head>
 
  <body>
  <div class ="description">
            <table>
          <tr>
            <td>
              <select>
                <option id="item" value="demand">Demand Ride Percent Change</option>
                <option id="item" value="bus">Bus Ride Percent Change</option>
              </select>
            </td>
        </tr>
        <tr>
              <td>
                <ul>
                  <li><input type="checkbox" class="checkbox" name="check" value="sort"> </li>
                  <li>Sort by percent change</li>
                </ul>
              </div>
            </td>
 
        </tr>
          </table>
      </div>
      <br>
      <div id="chart-container"></div>
       <script>
	   var dataset;
 
//Define bar chart function 
	function barChart(dataset){	
 
		//Set width and height as fixed variables
		var w = 1000;
		var h = 1000;
		var padding = 40;
		//Scale function for axes and radius
		var yScale = d3.scale.linear()
						.domain(d3.extent(dataset, function(d){return d.lundi;}))
						//.range([w+padding,padding]);
						//.range([d3.min(dataset, function(d) { return d.lundi;}),d3.max(dataset, function(d) { return d.lundi;})]);
	                    .range([500+padding,padding]); //pourquoi dansz ce sens ?
						//.range([h,0]);
		/*var xScale = d3.scale.ordinal()
						.domain(dataset.map(function(d){ return d.horaire;}))
						.rangeRoundBands([padding,w]); //poruquoi round ? pourquoi xCale et axisScale ? */
 
 
 
		//To format axis as a percent
		//var formatPercent = d3.format("%1");
 
		//Create y axis
		var yAxis = d3.svg.axis().scale(yScale).orient("left").ticks(10);
 
 
		var axisScale =  d3.scale.ordinal()
						.domain(dataset.map(function(d){ return d.horaire;}))
						//.rangeRoundBands([padding,w],0.15); //pourquoi intervalle de 0.5  et round ?
						.rangeRoundBands([padding,w])
						//.rangePoints([padding,w]);
        var xAxis = d3.svg.axis().scale(axisScale)/*.tickValues(10)*/.tickValues(axisScale.domain().filter(function(d, i) { return !(i % 4); }));
 
 
 
 
		//Define key function
		var key = function(d){return d.horaire};
 
		//Define tooltip for hover-over info windows
		var div = d3.select("body").append("div")   
  							.attr("class", "tooltip")               
  							.style("opacity", 0);
 
		//Create svg element
		var svg = d3.select("#chart-container").append("svg")
				.attr("width", w).attr("height", h)
				.attr("id", "chart")
				.attr("viewBox", "0 0 "+w+ " "+h) // pour le responsive
				.attr("preserveAspectRatio", "xMinYMin");
		//console.log("TARGET   ");
		//Resizing function to maintain aspect ratio (uses jquery)
		//var targetWidth2 = $("body").width();
		var aspect = w / h;
		var chart = $("#chart");
			$(window).on("resize", function() {
			    var targetWidth = $("body").width();
			   	//console.log("TARGET   "+targetWidth2);
 
	    		if(targetWidth<w){
	    			chart.attr("width", targetWidth); 
	    			chart.attr("height", targetWidth / aspect); 			
	    		}
	    		else{
 
	    			chart.attr("width", w);  
	    			chart.attr("height", w / aspect);	//pourquoi ?
	    		}
 
			});
 
 
		//Initialize state of chart according to drop down menu
		var state = d3.selectAll("option");
 
		//Create barchart
		svg.selectAll("rect")
			.data(dataset, key)
			.enter()
		  	.append("rect")
		    .attr("class", function(d){return d.lundi < 0 ? "negative" : "positive";})
		    .attr({
		    	x: function(d){
					//console.log("X :"+xScale(d.horaire));
		    		return axisScale(d.horaire);
		    	},
 
 
		    	y: function(d){
					console.log("Y :"+yScale(Math.max(0, d.lundi)));
		    		return yScale(Math.max(0, d.lundi));  
		    	},
		    	width: axisScale.rangeBand(),
		    	height: function(d){
		    		return Math.abs(yScale(d.lundi) - yScale(0)); 	//pourquoi ?
		    	}
		    })
		    .on('mouseover', function(d){
							d3.select(this)
							    .style("opacity", 0.2)
							    .style("stroke", "black")
 
					var info = div
							    .style("opacity", 1)
							    .style("left", (d3.event.pageX+10) + "px")
							    .style("top", (d3.event.pageY-30) + "px")
							    .text(d.horaire);
 
					if(state[0][0].selected){
						info.append("p")
							    .text(/*formatPercent(*/d.lundi/*)*/);
 
					}
					else if(state[0][1].selected){
						info.append("p")
							    .text(formatPercent(d.horaire));
					}
 
 
 
						})
        				.on('mouseout', function(d){
        					d3.select(this)
							.style({'stroke-opacity':0.5,'stroke':'#a8a8a8'})
							.style("opacity",1);
 
							div
	    						.style("opacity", 0);
        				});
 
		//Add y-axis
		svg.append("g")
				.attr("class", "y axis")
				.attr("transform", "translate(40,0)") //padding = 40
				.call(yAxis);
 
		svg.append("g")
				.attr("class", "x axis")
				.attr("transform", "translate(0,0)")
				/*.selectAll('path')
				.style({fill: 'none', stroke: "#3c763d"})
				.selectAll('line')
				.style({stroke: "#3c763d"})*/
				.call(xAxis);
 
		//svg.append("g")
			//	.attr("width", 100)
              //  .attr("height", 0)
				//.call(xAxis);	
 
		svg.selectAll("line.horizontalGrid").data(yScale.ticks(10)).enter()
		.append("line")
        .attr(
        {
            "class":"horizontalGrid",
            "x1" : padding,
            "x2" : w,
            "y1" : function(d){ return yScale(d);},
            "y2" : function(d){ return yScale(d);},
            "fill" : "none",
            "shape-rendering" : "crispEdges",
            "stroke" : "black",
            "stroke-width" : "1px"
        });
console.log('test' + axisScale(dataset[0].horaire));
		/*svg.selectAll("g").append("line.verticalGrid").data("08:00").append("line").attr(
        {
            "class":"verticalGrid",
            "x1" : axisScale(dataset[0].horaire),
            "x2" : axisScale(dataset[0].horaire),
            "y1" : 0,
            "y2" : h,
            "fill" : "none",
            "shape-rendering" : "crispEdges",
            "stroke" : "black",
            "stroke-width" : "1px"
        });*/
 
/*svg.selectAll("line.verticalGrid").data(axisScale.ticks(axisScale.domain().filter(function(d, i) { return !(i % 4)}))).enter()
    .append("line")
        .attr(
        {
            "class":"verticalGrid",
            "x1" : function(d){ return axisScale(d);},
            "x2" : function(d){ return axisScale(d);},
            "y1" : 0,
            "y2" : h,
            "fill" : "none",
            "shape-rendering" : "crispEdges",
            "stroke" : "black",
            "stroke-width" : "1px"
        });*/
 
        svg.selectAll("g").append("line")
       .attr("x1",axisScale(dataset[0].horaire- padding) )  //<<== change your code here
       .attr("y1", 0)
       .attr("x2", axisScale(dataset[0].horaire - padding))  //<<== and here
       .attr("y2", 500 )
		//Sort data when sort is checked
		d3.selectAll(".checkbox").
		on("change", function(){
			console.log("sss");
			var x0 = axisScale.domain(dataset.sort(sortChoice())
			.map(function(d){return d.horaire}))
			.copy();
 
			var transition = svg.transition().duration(750);
			var delay = function(d, i){return i*10;};
 
			transition.selectAll("rect")
			.delay(delay)
			.attr("x", function(d){return x0(d.horaire);});
 
		})
 
		//Function to sort data when sort box is checked
		function sortChoice(){
				var state = d3.selectAll("option");
				var sort = d3.selectAll(".checkbox");
 
				if(sort[0][0].checked && state[0][0].selected){
				    console.log("begin");
					var out = function(a,b){
						return b.lundi - a.lundi; // ?
						}
						//console.log(out);
					return out;
				}
				/*else if(sort[0][0].checked && state[0][1].selected){
					var out = function(a,b){return b.bus_change - a.bus_change;}
					return out;
				}*/
				else{
				     console.log("return");
					var out = function(a,b){return d3.ascending(a.horaire, b.horaire);}
					return out;
 
				}
		};
 
		//Change data to correct values on input change
		//thid for second choice
		/*
			d3.selectAll("select").
			on("change", function() {
 
				var value= this.value;
				console.log("val: "+value);
 
				if(value=="bus"){
					var x_value = function(d){return d.bus_change;};
					var color = function(d){return d.bus_change < 0 ? "negative" : "positive";};
					var y_value = function(d){
			    		return yScale(Math.max(0, d.bus_change)); 
			    	};
			    	var height_value = function(d){
			    		return Math.abs(yScale(d.bus_change) - yScale(0));
			    	};	
				}
				else if(value=="demand"){
					var x_value = function(d){return d.lundi;};
					var color = function(d){return d.lundi < 0 ? "negative" : "positive";};
					var y_value = function(d){
			    		return yScale(Math.max(0, d.lundi)); 
			    	};
			    	var height_value = function(d){
			    		return Math.abs(yScale(d.lundi) - yScale(0)); 
			    	};	
				}
 
				//Update y scale
				yScale.domain(d3.extent(dataset, x_value));
 
				//Update with correct data
				var rect = svg.selectAll("rect").data(dataset, key);
				rect.exit().remove();
 
				//Transition chart to new data
				rect
				.transition()
				.duration(2000)
				.ease("linear")
				.each("start", function(){
					d3.select(this)
					.attr("width", "0.2")
					.attr("class", color)
				})
				.attr({
			    	x: function(d){
			    		return xScale(d.horaire);
			    	},
			    	y: y_value,
			    	width: xScale.rangeBand(),
			    	height: height_value
 
				});
 
				//Update y-axis
				svg.select(".y.axis")
					.transition()
					.duration(1000)
					.ease("linear")
					.call(yAxis);
			});*/
 
	};
 
	//Load data and call bar chart function 
		d3.csv("transportation_change_2012-2013_small.csv", function(error,data){
				if(error){
					console.log(error);
				}
				else{
					data.forEach(function(d) {
						d.lundi = parseFloat(d.lundi);
 
					});
					console.log(data.length); // ?
					dataset=data;
					barChart(dataset);
				}
			});
 
	   </script>
    </div>
  </body>
  </html>

Fichier csv :

Code:

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horaire,lundi,mardi,mercredi,jeudi,vendredi,samedi,dimanche
00:00,4,0,0,0,0,0,0
00:15,0,0,0,0,0,0,0
00:30,0,0,0,0,0,0,0
00:45,0,0,0,0,0,0,0
01:00,0,0,0,0,0,0,0
01:15,0,0,0,0,0,0,0
01:30,0,0,0,0,0,0,0
01:45,0,0,0,0,0,0,0
02:00,0,0,0,0,0,0,0
02:15,0,0,0,0,0,0,0
02:30,0,0,0,0,0,0,0
02:45,0,0,0,0,0,0,0
03:00,0,0,0,0,0,0,0
03:15,0,0,0,0,0,0,0
03:30,0,0,0,0,0,0,0
03:45,0,0,0,0,0,0,0
04:00,0,0,0,0,0,0,0
04:15,0,0,0,0,0,0,0
04:30,0,0,0,0,0,0,0
04:45,0,0,0,0,0,0,0
05:00,0,0,0,0,0,0,0
05:15,0,0,0,0,0,0,0
05:30,0,0,0,0,0,0,0
05:45,0,0,0,0,0,0,0
06:00,0,0,0,0,0,0,0
06:15,0,0,0,0,0,0,0
06:30,0,0,0,0,0,0,0
06:45,0,0,0,0,0,0,0
07:00,0,0,0,0,0,0,0
07:15,0,0,0,0,0,0,0
07:30,0,0,0,0,0,0,0
07:45,0,0,0,0,0,0,0
08:00,1,1,1,1,1,1,0
08:15,1,1,1,1,1,1,0
08:30,6,5,7,3,5,4,0
08:45,5,5,6,4,6,5,0
09:00,52,50,47,55,53,38,0
09:15,56,51,62,57,54,41,0
09:30,60,64,67,64,57,54,0
09:45,85,72,77,69,63,64,0
10:00,80,87,74,82,71,75,14
10:15,80,90,87,87,84,77,14
10:30,80,85,85,92,83,78,14
10:45,83,87,90,89,83,79,14
11:00,86,89,78,81,84,81,14
11:15,89,83,77,79,80,83,14
11:30,89,84,74,83,78,77,14
11:45,88,92,76,81,75,72,14
12:00,78,83,62,77,69,63,13
12:15,77,64,54,63,55,52,13
12:30,61,58,52,55,48,52,12
12:45,58,53,48,50,45,43,12
13:00,58,57,45,50,41,44,12
13:15,58,57,45,45,45,40,12
13:30,55,57,42,47,49,42,12
13:45,52,61,43,56,53,48,12
14:00,71,64,59,70,68,49,13
14:15,71,72,72,83,71,62,14
14:30,81,73,87,83,76,72,14
14:45,77,90,90,86,76,77,14
15:00,82,95,90,91,74,74,14
15:15,86,96,92,77,79,72,14
15:30,89,92,88,78,83,72,14
15:45,93,90,82,83,78,74,14
16:00,101,87,85,80,79,78,14
16:15,100,90,89,84,83,77,14
16:30,98,92,89,82,83,78,14
16:45,88,86,91,83,86,72,14
17:00,90,89,91,81,80,66,14
17:15,87,90,86,73,81,61,14
17:30,86,90,86,77,73,59,14
17:45,88,93,91,64,70,52,14
18:00,78,83,68,65,56,33,11
18:15,74,77,67,67,54,30,11
18:30,58,54,51,49,44,25,11
18:45,47,50,50,44,35,23,11
19:00,12,17,14,12,17,11,11
19:15,12,11,15,11,13,10,11
19:30,9,7,11,9,8,7,11
19:45,9,7,11,9,9,7,11
20:00,4,4,3,4,4,3,5
20:15,4,4,3,4,4,3,5
20:30,4,4,3,4,4,3,5
20:45,4,4,3,4,4,3,5
21:00,4,4,3,4,4,3,0
21:15,4,4,3,4,4,3,0
21:30,1,1,1,1,1,1,0
21:45,1,1,1,1,1,1,0
22:00,0,0,0,0,0,0,0
22:15,0,0,0,0,0,0,0
22:30,0,0,0,0,0,0,0
22:45,0,0,0,0,0,0,0
23:00,0,0,0,0,0,0,0
23:15,0,0,0,0,0,0,0
23:30,0,0,0,0,0,0,0
23:45,4,0,0,0,0,0,0