如果我在http://nvd3.org/examples/scatter.html的示例中有以下代码,我可以在绘制的点上添加标签吗?不是工具提示,而是将我的数据中的一个值渲染为一个始终附加到该点的标签?显然,在这个具体的例子中这样做太过拥挤,但是在人口较少的图表中,如果每个点都有一个名称,那么标记它会很棒。谢谢!
nv.addGraph(function() {
var chart = nv.models.scatterChart()
.showDistX(true) //showDist, when true, will display those little distribution lines on the axis.
.showDistY(true)
.transitionDuration(350)
.color(d3.scale.category10().range());
//Configure how the tooltip looks.
chart.tooltipContent(function(key) {
return '<h3>' + key + '</h3>';
});
//Axis settings
chart.xAxis.tickFormat(d3.format('.02f'));
chart.yAxis.tickFormat(d3.format('.02f'));
//We want to show shapes other than circles.
chart.scatter.onlyCircles(false);
var myData = randomData(4,40);
d3.select('#chart svg')
.datum(myData)
.call(chart);
nv.utils.windowResize(chart.update);
return chart;
});
/**************************************
* Simple test data generator
*/
function randomData(groups, points) { //# groups,# points per group
var data = [],
shapes = ['circle', 'cross', 'triangle-up', 'triangle-down', 'diamond', 'square'],
random = d3.random.normal();
for (i = 0; i < groups; i++) {
data.push({
key: 'Group ' + i,
values: []
});
for (j = 0; j < points; j++) {
data[i].values.push({
x: random()
, y: random()
, size: Math.random() //Configure the size of each scatter point
, shape: (Math.random() > 0.95) ? shapes[j % 6] : "circle" //Configure the shape of each scatter point.
});
}
}
return data;
}
答案 0 :(得分:1)
您可以添加标签。这非常俗气,但提出了一个想法:
var svg = d3.select('svg');
svg.selectAll('path')
.each(function(scatterpoint) {
svg.append('text')
.x(scatterpoint.x)
.y(scatterpoint.y)
.text(scatterpoint.maybe_you_have_text_here);
})