オブジェクトのキーと値にアクセスしようとしているときに、undefined
. 以下は私のコードです
<script type="text/javascript">
var data;
var xAxisName;
var yAxisName;
var jso;
function getX(d) {
return d[xAxisName];
}
function getY(d) {
return d[yAxisName];
}
d3.json("response.json", function (json) {
console.log("hi");
console.log(json); //getting the values
console.log("this " +json.users); //getting the values
xAxisName = json.attribute1.;
console.log("xAxisName=" + xAxisName); //Not getting the values
yAxisName = json.attribute2;
console.log("yAxisName=" + yAxisName); //Not getting the values
data = json.users;
alert(data);
data.map(function(d) { console.log(getX(d));});
data.map(function(i) {console.log(i);});
visualize(data); //then start the visualization
});
function visualize (data) {
var padding = 40;
var margin = {top:30, right: 30, bottom: 30, left:100};
var w = 700 - margin.left - margin.right;
var h = 400 - margin.top - margin.bottom;
//the svg
var svg = d3.select("#container")
.append("svg")
.attr("class", "chart")
.attr("width", w + margin.left + margin.right)
.attr("height", h + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
//the scales
var xScale = d3.scale.ordinal()
.domain(d3.range(data.length))
.rangeRoundBands([0, w], 0.04);
var yScale = d3.scale.linear()
.domain([d3.max(data, getY), 0])
.range([0, h]);
//the axes
var xAxis = d3.svg.axis().scale(xScale).orient("bottom");
var yAxis = d3.svg.axis().scale(yScale).orient("left");
//add the data and bars
svg.selectAll("rect")
.data(data)
.enter()
.append("rect")
.attr("x", function(d, i) { return xScale(i);})
.attr("y", function(d) { return yScale(getY(d));})
.attr("width", xScale.rangeBand())
.attr("height", function(d) {
return h - yScale(getY(d));})
.attr("class", "bar");
//create axes
svg.append("g").attr("class", "x axis")
.attr("transform", "translate(0," + h + ")").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(yAxisName);
}
alert("done");
</script>
とに与えundefined
ています。と与える。_xAxisName
yAxisName
svg.selectAll("rect")
y
height
NaN
私のJSONは
{
"users": [
{
"name": "warchicken",
"score": 30
},
{
"name": "daydreamt",
"score": 100
},
{
"name": "Anas2001",
"score": 30
},
{
"name": "ocjojo",
"score": 30
},
{
"name": "joklawitter",
"score": 30
}
]
}