I've designed a group bar chart and attempted to implement zoom functionality. However, I noticed that the zoom only works for the first group of bars and not for the entire chart. Any assistance on this matter would be highly appreciated. Thank you in advance.
You can view a working example here:
http://jsfiddle.net/fiddlefollower/qkHK6/893/
Here are the details of the code:
var x0 = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var x1 = d3.scale.ordinal();
var y = d3.scale.linear()
.range([height, 0]);
var color = d3.scale.ordinal()
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var xAxis = d3.svg.axis().scale(x0).orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(d3.format(".1s"));
var svg = d3.select("#chart").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 + ")")
.call(d3.behavior.zoom().scaleExtent([1, 10]).on("zoom", zoom));
var ageNames = d3.keys(data[0]).filter(function(key) { return key !== "State"; });
console.log("ageNames="+JSON.stringify(ageNames));
data.forEach(function(d) {
d.ages = ageNames.map(function(name) { return {name: name, value: +d[name]}; });
console.log("d.ages="+JSON.stringify(d.ages));
});
x0.domain(data.map(function(d) { return d.State; }));
x1.domain(ageNames).rangeRoundBands([0, x0.rangeBand()]);
y.domain([0, d3.max(data, function(d) {
console.log(" before retuen d.ages="+d.ages);
return d3.max(d.ages, function(d)
{ console.log("d.value;="+d.value);
return d.value; });
})]);
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", ".5em")
.style("text-anchor", "end")
.text("Population");
var state = svg.selectAll(".state")
.data(data)
.enter().append("g")
.attr("class", "state")
.attr("transform", function(d) { return "translate(" + x0(d.State) + ",0)"; });
state.selectAll("rect")
.data(function(d) { return d.ages; })
.enter().append("rect")
.attr("width", x1.rangeBand())
.attr("x", function(d) { return x1(d.name); })
.attr("y", function(d) { return y(d.value); })
.attr("height", function(d) { return height - y(d.value); })
.style("fill", function(d) { return color(d.name); });
function zoom() {
svg.select(".state").attr("transform", "translate("+ d3.event.translate[0]+")scale(" + d3.event.scale + ",1)");
svg.select(".x.axis").attr("transform", "translate(" + d3.event.translate[0]+","+(height)+")").call(xAxis.scale(x0.rangeRoundBands([0,width*d3.event.scale],.5*d3.event.scale)));
svg.select(".y.axis").call(yAxis);
}