How to update axis using d3.js - d3.js

Question

I'm trying to display different data on a graph. The user can change the displayed data clicking on a radio button. I'm using a "Bubble chart" to render the data.
For each type of data I need to update the Yaxis (the domain is different).
Here is what I've done for now:
Chart initialisation
var svg = d3.select("body .main-content").append("svg")
.attr("class", "chart")
.attr("width", width)
.attr("height", height);
Initialise the Axis
initAxis();
function initAxis()
{
var y = d3.scale.linear().domain([0,1000]).range([height-margin, margin]).nice(),
x = d3.scale.linear().domain([0,23]).range([margin,width-margin]),
yAxis = d3.svg.axis().scale(y).orient("left"),
xAxis = d3.svg.axis().scale(x).orient("bottom");
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate(" + margin + ",0)")
.call(yAxis);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + (height - margin) + ")")
.call(xAxis);
}
Update the chart
function update(type)
{
// Get the data
type = type || 'default';
var m = max[type],
mi = min[type]+0.1,
data = dataset[type],
step = stp[type];
// Set the functions
var y = d3.scale.linear().domain([mi,m]).range([height-margin, margin]).nice();
var o = d3.scale.linear().domain([0,m]).range([.5,1]);
var r = d3.scale.linear().domain([0,Math.sqrt(m)]).range([0,30]);
var x = d3.scale.linear().domain([0,23]).range([margin,width-margin]);
var color = function (a, b) {
for (var c = (a - 0) / (m - 0), d = [], e = 0; 3 > e; e++) d.push(Math.round(K[0][e] +
c * (K[1][e] - K[0][e])));
d.push(b || 0.7);
return "rgba(" + d.join(",") + ")"
}
//Attach the data to the graph
var circle = svg.selectAll("circle").data(data);
// Update existing element
circle.attr("class", "update");
// Add new element
circle.enter()
.append("circle")
.attr("class", "enter")
.attr("stroke-width", 0)
.attr("stroke", "black")
.transition()
.duration(750)
.attr("y", 0)
.style("fill-opacity", 1);
// Apply attribute to new and updated element
circle.attr("cx", function(d,i) {return x(d.h);})
.attr("cy", function(d,i) {return y(d.v);})
.attr("r", function(d,i) {return r(Math.sqrt(d.v));})
.style("fill", function(d,i) {return color(d.v);})
.style("opacity", function(d,i) {return o(d.v);})
.on("click", function(d,i){window.open(d.name,'_blank');})
.on("mouseover", function(d,i){d3.select(this).style("fill", "red").attr("stroke-width", 1);})
.on("mouseout", function(d,i){d3.select(this).style("fill", function(d,i) {return color(d.v);}).attr("stroke-width", 0);})
.append("title")
.text(function(d) { return d.v+' '+ d.t+' (adjusted) - '+ d.d })
.transition()
.duration(750)
.attr("y", 0)
.style("fill-opacity", 1);
// Remove old elements
circle.exit()
.attr("class", "exit")
.transition(750)
.ease("linear")
.attr("cy", 0)
.style("opacity", 0.2)
.remove();
// Update the Axis
var xAxis = d3.svg.axis().scale(x).orient("bottom");
var yAxis = d3.svg.axis().scale(y).orient("left");
svg.selectAll("g .y.axis")
.call(yAxis)
svg.selectAll("g .x.axis")
.call(xAxis);
}
The circles are updated correctly (transitions are not working tho) but the axis are not changing and I can't see why. I'm a bit lost, I've looked at many example but I cannot see what I'm doing wrong.
I'm using d3.js version: v3.1.10
Maxime

Answer 1

It looks like you are using the wrong selector while updating the axes:
svg.selectAll("g .y.axis")
.call(yAxis);
svg.selectAll("g .x.axis")
.call(xAxis);
maybe should read:
svg.selectAll("g.y.axis")
.call(yAxis);
svg.selectAll("g.x.axis")
.call(xAxis);

Answer 2

Why are you using "g .y.axis"?
Try:
svg.select(".y.axis")
.call(yAxis);
And similar for x axis.