I have this chart: The symbol names, '$TSLA' and '$AAPL' are not appended to the line, they are simply placed there with the appropriate x and y values. I would like to append them to the line, such that if the line ended at a different position, the symbol name would appear next to it. Like in
Here is the code:
var svg = d3.select('#graph')
.append('svg')
.attr('width', w)
.attr('height', h);
svg.append('path')
.datum(data)
.attr('class', 'stock')
.attr('stroke', '#157145') ....
//I have included the above code because it is what's different from the link-
//my lines are appended to the variable 'svg'. I am, however, selecting the correct class
//in the below code:
....
var sec = d3.selectAll(".stock")
.data(kvals) //this data follows the same pattern as the examples'
.enter().append("g")
.attr("class", "stock");
sec.append("text")
.datum(function(d){
return {
name: d.name,
value: d.values[d.values.length-1]
};
})
.attr("transform", function(d){
console.log(xScale(d.value.date)); //not displayed in console.
return "translate(" xScale(d.value.date) "," yScale(d.value.stock) ")"
})
.attr("x", 3)
.attr("dy", ".35em")
.text(function(d){
return d.name;
});
Thank you for your help. If you need all the code, I can paste it.
CodePudding user response:
Here's the code I used to add the labels. First part (knames) is what I used to plot the line too. (there might be an easier way of doing this):
var knames = d3.scaleOrdinal();
knames.domain(Object.keys(data[0]).filter(function(key){ //only get non-sma values
return !key.match(/([_])|(d)|(band)\w /g)
}));
var kvals = knames.domain().map(function(name){
return {
name: name,
values: data.map(function(d){
return {
date: d.date,
stock: d[name]
};
})
};
});
var sec = svg.selectAll("stock")
.data(kvals)
.enter().append("g")
.attr("class", "stock");
sec.append("text")
.datum(function(d){
return {
name: d.name,
value: d.values[d.values.length-1]
};
})
.attr("transform", function(d){
return "translate(" xScale(d.value.date) "," yScale(d.value.stock) ")"
})
.attr("x", 7)
.attr("dy", ".3em")
.style("fill", function(d) {
return accent(d.name);
})
.style('font-family', 'Helvetica')
.style('font-size', '11px')
.style('letter-spacing', '1px')
.style('text-transform', 'uppercase')
.text(function(d){
return d.name;
});