Вы хотите изменить цвет меток на оси x, поэтому вам нужно выбрать эти метки и применить к ним значение заливки.
Вы можете написать приведенный ниже код и выполнить sh свою задачу, выделите весь текст по оси X и примените к нему цвет.
d3.selectAll('g.axis--x text')
.style('fill', 'green')
Ниже приведен полный рабочий экземпляр:
data = [
{"year" : "2005", "value": 771900},
{"year" : "2006", "value": 771500},
{"year" : "2007", "value": 770500},
{"year" : "2008", "value": 770400},
{"year" : "2009", "value": 771000},
{"year" : "2010", "value": 772400},
{"year" : "2011", "value": 774100},
{"year" : "2012", "value": 776700},
{"year" : "2013", "value": 777100},
{"year" : "2014", "value": 779200},
{"year" : "2015", "value": 782300}
]
make_graph(data)
body {
background-color: #F1F3F3
}
.axis {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #D4D8DA;
stroke-width: 2px;
shape-rendering: crispEdges;
}
.line {
fill: none;
stroke: #6F257F;
stroke-width: 5px;
}
.overlay {
fill: none;
pointer-events: all;
}
.focus circle {
fill: #F1F3F3;
stroke: #6F257F;
stroke-width: 5px;
}
.hover-line {
stroke: #6F257F;
stroke-width: 2px;
stroke-dasharray: 3,3;
}
<!DOCTYPE html>
<meta charset="utf-8">
<body>
<svg width="400" height="200"></svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
function make_graph(data) {
var svg = d3.select("svg"),
margin = {
top: 20,
right: 20,
bottom: 30,
left: 40
},
width = +svg.attr("width") - margin.left - margin.right,
height = +svg.attr("height") - margin.top - margin.bottom;
var parseTime = d3.timeParse("%Y")
bisectDate = d3.bisector(function(d) {
return d.year;
}).left;
var x = d3.scaleTime().range([0, width]);
var y = d3.scaleLinear().range([height, 0]);
var line = d3.line().x(function(d) {
return x(d.year);
}).y(function(d) {
return y(d.value);
});
var g = svg.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
data.forEach(function(d) {
d.year = parseTime(d.year);
d.value = +d.value;
});
x.domain(d3.extent(data, function(d) {
return d.year;
}));
y.domain([d3.min(data, function(d) {
return d.value;
}) / 1.005, d3.max(data, function(d) {
return d.value;
}) * 1.005]);
g.append("g")
.attr("class", "axis axis--x")
.style('font-family', 'Impact')
.style("fill", "green")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x));
d3.selectAll('g.axis--x text')
.style('fill', 'green')
g.append("g")
.attr("class", "axis axis--y")
.call(d3.axisLeft(y).ticks(6)
.tickFormat(function(d) {
return parseInt(d / 1000) + "k";
}))
.append("text")
.attr("class", "axis-title")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.attr("fill", "#5D6971")
.text("Population)");
g.append("path").datum(data)
.attr("class", "line")
.attr("d", line);
var focus = g.append("g")
.attr("class", "focus")
.style("display", "none");
focus.append("line")
.attr("class", "x-hover-line hover-line")
.attr("y1", 0)
.attr("y2", height);
focus.append("line")
.attr("class", "y-hover-line hover-line")
.attr("x1", width)
.attr("x2", width);
focus.append("circle")
.attr("r", 7.5);
focus.append("text")
.attr("x", 15)
.attr("dy", ".31em");
svg.append("rect")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
.attr("class", "overlay").attr("width", width)
.attr("height", height)
.on("moseover", function() {
focus.style("display", null);
})
.on("mouseout", function() {
focus.style("display", "none");
})
.on("mousemove", mousemove);
function mousemove() {
var x0 = x.invert(d3.mouse(this)[0]),
i = bisectDate(data, x0, 1),
d0 = data[i - 1],
d1 = data[i],
d = x0 - d0.year > d1.year - x0 ? d1 : d0;
focus
.attr("transform", "translate(" + x(d.year) + "," + y(d.value) + ")");
focus.select("text").text(function() {
return d.value;
});
focus.select(".x-hover-line").attr("y2", height - y(d.value));
focus.select(".y-hover-line").attr("x2", width + width);
}
}
</script>