我使用教程创建了一个堆叠条形图。堆栈是使用以下内容创建的:
var layers = d3.layout.stack()(["passed", "failed", "skipped"].map(function(cause){
return data.map(function(d){
return {x: d.UP, y: +d[cause]};
});
}));
当我将鼠标悬停在堆栈上时,我希望标记整个堆栈(例如更强的边界线)。
我目前正在使用:
var barMouseOverFunction = function(d, i) {
var bar = d3.select(this);
bar.attr("stroke", "black" );
然而,这只改变了当前堆栈。关于如何获取堆栈中的所有条的任何想法?
编辑全码:
d3.json('db/data.php', function(data) {
var layers = d3.layout.stack()(["passed", "failed", "skipped"].map(function(cause){
return data.map(function(d){
return {x: d.UP, y: +d[cause]};
});
}));
var n = 3, // number of layers
stack = d3.layout.stack(),
yGroupMax = d3.max(layers, function(layer) { return d3.max(layer, function(d) { return d.y; }); }),
yStackMax = d3.max(layers, function(layer) { return d3.max(layer, function(d) { return d.y0 + d.y; }); });
var x = d3.scale.ordinal()
.domain(data.map(function(d){return d.UP;}))
.rangeRoundBands([0, width], .4);
var y = d3.scale.linear()
.domain([0, yStackMax])
.range([height, 0]);
var color = d3.scale.ordinal()
.range(["#6ad46a", "#ed2828", "#fae650"]);
var xAxis = d3.svg.axis()
.scale(x)
.tickSize(0)
.tickPadding(6)
.orient("bottom");
// Grid lines
var gridcontainer = svg.append('g');
gridcontainer.selectAll("line").data(y.ticks(10)).enter().append("line")
.attr("x1", 0)
.attr("x2", width)
.attr("y1", y)
.attr("y2", y)
.style("stroke", "#87cbff")
.style("stroke-width", .3);
var layer = svg.selectAll(".layer")
.data(layers)
.enter().append("g")
.attr("class", "layer")
.style("fill", function(d, i) { return color(i); })
.style("stroke", function(d, i){return d3.rgb(color(i)).darker();});
var timeformatter = d3.time.format("%b %e %Y %x%p");
// On mouseover display test case information
var barMouseOverFunction = function(d, i) {
var bar = d3.select(this);
bar.attr("stroke", "black" );
var dataItem = data[i];
}
var barMouseOutFunction = function() {
var bar = d3.select(this);
bar.attr("stroke", function(d){
return StatusColor(d.result);
});
d3.select("p").text("");
}
var rect = layer.selectAll("rect")
.data(function(d) { return d; })
.enter().append("rect")
.attr("x", function(d) { return x(d.x); })
.attr("y", height)
.attr("width", x.rangeBand())
.attr("height", 0)
.attr("rx", 0.5)
.attr("ry", 0.5)
.on("mouseover", barMouseOverFunction)
.on("mouseout", barMouseOutFunction);