i was following the Let's make a Bar chart tutorial and have run into an issue...in step three He rotates the bars to columns, and for the life of me I cannot figure out how to iterate over a json data set, and add Y-axis labels for each bars from the name attribute in the json data returned
Here is the jsfiddle of my code http://jsfiddle.net/7K3tt
and the code samples below the json data loaded
[
{
"name": "1-30 days",
"value": "22"
},
{
"name": "31-60 days",
"value": "14"
},
{
"name": "61-90 days",
"value": "1"
}
]
My D3 code
var width = 420,
barHeight = 20;
var x = d3.scale.linear()
.range([0, width]);
var chart = d3.select(".chart")
.attr("width", width);
d3.json("<?=APP_PATH?>/query", function(error, data) {
x.domain([0, d3.max(data, function(d) { return d.value; })]);
chart.attr("height", barHeight * data.length);
var bar = chart.selectAll("g")
.data(data)
.enter().append("g")
.attr("transform", function(d, i) { return "translate(0," + i * barHeight + ")"; });
bar.append("rect")
.attr("width", function(d) { return x(d.value); })
.attr("height", barHeight - 1);
bar.append("text")
.attr("x", function(d) { return x(d.value) - 3; })
.attr("y", barHeight / 2)
.attr("dy", ".35em")
.text(function(d) { return d.value; });
});
function type(d) {
d.value = +d.value; // coerce to number
return d;
}