Stuck with D3 V3 zoom behaviour documentation - d3.js

Question

I am a newbie with D3 library and I am stuck with zooming on a graph.
I display correctly my data over several graphs. But when I zoom, everything goes wrong. I don't know if I miss something with Domains or Ranges or anything... so I ask.
You can find a demo of my code here: http://pastehtml.com/view/cos13vodt.html
And here is the jsFiddle example: http://jsfiddle.net/84mSQ/
And my JS code is there:
var margin = {top: 30, right: 150, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
//To parse dates as they are into the CSV
var parseDate = d3.time.format("%Y/%m/%d-%H:%M").parse;
var format = d3.time.format("%d/%m/%y-%H:%M");
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var color = d3.scale.category10();
var xAxis = d3.svg.axis().scale(x)
.orient("bottom");
var yAxis = d3.svg.axis().scale(y)
.orient("left")/*.ticks(30)*/;
var zoom = d3.behavior.zoom()
.x(x)
.scaleExtent([1, 2])
.on("zoom", function(scale, translate){
console.log("fonction zoom");
console.log(scale); console.log(translate);
zoomed(scale, translate);
});
// A line generator.
var line = d3.svg.line()
.interpolate("basis")
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.value); });
var svg = d3.select("body")
.append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("svg:g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
.call(zoom);
svg.append("rect")
.attr("class", "pane")
.attr("width", width)
.attr("height", height);
// Get the data
d3.csv("./enregistrement-subset2.csv", function(data) {
color.domain(d3.keys(data[0])
.filter(function(key) {
return key !== "date" && key !== "ECS - Button A" ;
}));
data.forEach(function(d) {
//Parse the date
d.date = parseDate(d.date);
});
var dataSet = color.domain().map(function(name) {
return {
name: name,
values: data.map(function(d) {
//parses the number by using the '+' operator
if(name == "CO2 chambre"){
return { date: d.date, value: (+d[name])/10};
}
else{
return { date: d.date, value: +d[name]};
}
})
};
});
// Scale the range of the data
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain([
d3.min(dataSet, function(c) { var mini = d3.min(c.values, function(v) { return v.value; }); return mini; }),
d3.max(dataSet, function(c) { var maxi = d3.max(c.values, function(v) { return v.value; }); return maxi; })
]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("Value of");
var valueSet = svg.selectAll(".valueSet")
.data(dataSet)
.enter().append("g")
.attr("class", "valueSet");
valueSet.append("path")
.attr("class", "line")
.attr("d", function(d) { return line(d.values); })
.style("stroke", function(d) { return color(d.name); })
.call(line);
valueSet.append("text")
.datum(function(d) { return {name: d.name, value: d.values[d.values.length - 1]}; })
.attr("transform", function(d) { return "translate(" + x(d.value.date) + "," + y(d.value.value) + ")"; })
.attr("x", 3)
.attr("dy", ".35em")
.text(function(d) { return d.name; });
//zoomed();
});
function zoomed() {
console.log("here", d3.event);
svg.select("g.x.axis").call(xAxis);
svg.select("g.y.axis").call(yAxis);
//svg.selectAll("path.line").call(line);
svg.selectAll("path.line").attr("d", line);
//d3.select("#footer span").text("Période de temps: " + x.domain().map(format).join("-"));
}
Can anybody tell me what I did wrong with this code ?
Should I re-design it ?
Are there performances issue to preview if I use a huge amount of data and what should I do then ?

Answer 1

var zoom = d3.behavior.zoom()
.x(x)
**.scaleExtent([1, 2])** <---
.on("zoom", function(scale, translate){
console.log("fonction zoom");
console.log(scale); console.log(translate);
zoomed(scale, translate);
});
take out the .scaleExtent([1, 2]) and check if it is working
should be
var zoom = d3.behavior.zoom()
.x(x)
.on("zoom", function(scale, translate){
console.log("fonction zoom");
console.log(scale); console.log(translate);
zoomed(scale, translate);
});
it is because your x axis is time.