我正在尝试根据他们连接的组在我的分层边缘捆绑可视化中为连接着色。可以看到here的一个例子。
这是我当前的鼠标悬停功能:
function mouseover(d) {
svg.selectAll("path.link.target-" + d.key)
.classed("target", true)
.each(updateNodes("source", true));
svg.selectAll("path.link.source-" + d.key)
.classed("source", true)
.each(updateNodes("target", true));
}
以下是我发布的示例中的鼠标悬停功能:
function mouseovered(d)
{
// Handle tooltip
// Tooltips should avoid crossing into the center circle
d3.selectAll("#tooltip").remove();
d3.selectAll("#vis")
.append("xhtml:div")
.attr("id", "tooltip")
.style("opacity", 0)
.html(d.title);
var mouseloc = d3.mouse(d3.select("#vis")[0][0]),
my = ((rotateit(d.x) > 90) && (rotateit(d.x) < 270)) ? mouseloc[1] + 10 : mouseloc[1] - 35,
mx = (rotateit(d.x) < 180) ? (mouseloc[0] + 10) : Math.max(130, (mouseloc[0] - 10 - document.getElementById("tooltip").offsetWidth));
d3.selectAll("#tooltip").style({"top" : my + "px", "left": mx + "px"});
d3.selectAll("#tooltip")
.transition()
.duration(500)
.style("opacity", 1);
node.each(function(n) { n.target = n.source = false; });
currnode = d3.select(this)[0][0].__data__;
link.classed("link--target", function(l) {
if (l.target === d)
{
return l.source.source = true;
}
if (l.source === d)
{
return l.target.target = true;
}
})
.filter(function(l) { return l.target === d || l.source === d; })
.attr("stroke", function(d){
if (d[0].name == currnode.name)
{
return color(d[2].cat);
}
return color(d[0].cat);
})
.each(function() { this.parentNode.appendChild(this); });
d3.selectAll(".link--clicked").each(function() { this.parentNode.appendChild(this); });
node.classed("node--target", function(n) {
return (n.target || n.source);
});
}
我对D3有些新意,但我假设我需要做的是根据密钥检查组,然后将其与该组的颜色相匹配。
我的完整代码在这里:
<script type="text/javascript">
color = d3.scale.category10();
var w = 840,
h = 800,
rx = w / 2,
ry = h / 2,
m0,
rotate = 0
pi = Math.PI;
var splines = [];
var cluster = d3.layout.cluster()
.size([360, ry - 180])
.sort(function(a, b) {
return d3.ascending(a.key, b.key);
});
var bundle = d3.layout.bundle();
var line = d3.svg.line.radial()
.interpolate("bundle")
.tension(.5)
.radius(function(d) {
return d.y;
})
.angle(function(d) {
return d.x / 180 * Math.PI;
});
// Chrome 15 bug: <http://code.google.com/p/chromium/issues/detail?id=98951>
var div = d3.select("#bundle")
.style("width", w + "px")
.style("height", w + "px")
.style("position", "absolute");
var svg = div.append("svg:svg")
.attr("width", w)
.attr("height", w)
.append("svg:g")
.attr("transform", "translate(" + rx + "," + ry + ")");
svg.append("svg:path")
.attr("class", "arc")
.attr("d", d3.svg.arc().outerRadius(ry - 180).innerRadius(0).startAngle(0).endAngle(2 * Math.PI))
.on("mousedown", mousedown);
d3.json("TASKS AND PHASES.json", function(classes) {
var nodes = cluster.nodes(packages.root(classes)),
links = packages.imports(nodes),
splines = bundle(links);
var path = svg.selectAll("path.link")
.data(links)
.enter().append("svg:path")
.attr("class", function(d) {
return "link source-" + d.source.key + " target-" + d.target.key;
})
.attr("d", function(d, i) {
return line(splines[i]);
});
var groupData = svg.selectAll("g.group")
.data(nodes.filter(function(d) {
return (d.key == 'Department' || d.key == 'Software' || d.key == 'Tasks' || d.key == 'Phases') && d.children;
}))
.enter().append("group")
.attr("class", "group");
var groupArc = d3.svg.arc()
.innerRadius(ry - 177)
.outerRadius(ry - 157)
.startAngle(function(d) {
return (findStartAngle(d.__data__.children) - 2) * pi / 180;
})
.endAngle(function(d) {
return (findEndAngle(d.__data__.children) + 2) * pi / 180
});
svg.selectAll("g.arc")
.data(groupData[0])
.enter().append("svg:path")
.attr("d", groupArc)
.attr("class", "groupArc")
.attr("id", function(d, i) {console.log(d.__data__.key); return d.__data__.key;})
.style("fill", function(d, i) {return color(i);})
.style("fill-opacity", 0.5)
.each(function(d,i) {
var firstArcSection = /(^.+?)L/;
var newArc = firstArcSection.exec( d3.select(this).attr("d") )[1];
newArc = newArc.replace(/,/g , " ");
svg.append("path")
.attr("class", "hiddenArcs")
.attr("id", "hidden"+d.__data__.key)
.attr("d", newArc)
.style("fill", "none");
});
svg.selectAll(".arcText")
.data(groupData[0])
.enter().append("text")
.attr("class", "arcText")
.attr("dy", 15)
.append("textPath")
.attr("startOffset","50%")
.style("text-anchor","middle")
.attr("xlink:href",function(d,i){return "#hidden" + d.__data__.key;})
.text(function(d){return d.__data__.key;});
svg.selectAll("g.node")
.data(nodes.filter(function(n) {
return !n.children;
}))
.enter().append("svg:g")
.attr("class", "node")
.attr("id", function(d) {
return "node-" + d.key;
})
.attr("transform", function(d) {
return "rotate(" + (d.x - 90) + ")translate(" + d.y + ")";
})
.append("svg:text")
.attr("dx", function(d) {
return d.x < 180 ? 25 : -25;
})
.attr("dy", ".31em")
.attr("text-anchor", function(d) {
return d.x < 180 ? "start" : "end";
})
.attr("transform", function(d) {
return d.x < 180 ? null : "rotate(180)";
})
.text(function(d) {
return d.key.replace(/_/g, ' ');
})
.on("mouseover", mouseover)
.on("mouseout", mouseout);
d3.select("input[type=range]").on("change", function() {
line.tension(this.value / 100);
path.attr("d", function(d, i) {
return line(splines[i]);
});
});
});
d3.select(window)
.on("mousemove", mousemove)
.on("mouseup", mouseup);
function mouse(e) {
return [e.pageX - rx, e.pageY - ry];
}
function mousedown() {
m0 = mouse(d3.event);
d3.event.preventDefault();
}
function mousemove() {
if (m0) {
var m1 = mouse(d3.event),
dm = Math.atan2(cross(m0, m1), dot(m0, m1)) * 180 / Math.PI;
div.style("-webkit-transform", "translate3d(0," + (ry - rx) + "px,0)rotate3d(0,0,0," + dm + "deg)translate3d(0," + (rx - ry) + "px,0)");
}
}
function mouseup() {
if (m0) {
var m1 = mouse(d3.event),
dm = Math.atan2(cross(m0, m1), dot(m0, m1)) * 180 / Math.PI;
rotate += dm;
if (rotate > 360) rotate -= 360;
else if (rotate < 0) rotate += 360;
m0 = null;
div.style("-webkit-transform", "rotate3d(0,0,0,0deg)");
svg.attr("transform", "translate(" + rx + "," + ry + ")rotate(" + rotate + ")")
.selectAll("g.node text")
.attr("dx", function(d) {
return (d.x + rotate) % 360 < 180 ? 25 : -25;
})
.attr("text-anchor", function(d) {
return (d.x + rotate) % 360 < 180 ? "start" : "end";
})
.attr("transform", function(d) {
return (d.x + rotate) % 360 < 180 ? null : "rotate(180)";
});
}
}
function mouseover(d) {
svg.selectAll("path.link.target-" + d.key)
.classed("target", true)
.each(updateNodes("source", true));
svg.selectAll("path.link.source-" + d.key)
.classed("source", true)
.each(updateNodes("target", true));
}
function mouseout(d) {
svg.selectAll("path.link.source-" + d.key)
.classed("source", false)
.each(updateNodes("target", false));
svg.selectAll("path.link.target-" + d.key)
.classed("target", false)
.each(updateNodes("source", false));
}
function updateNodes(name, value) {
return function(d) {
if (value) this.parentNode.appendChild(this);
svg.select("#node-" + d[name].key).classed(name, value);
};
}
function cross(a, b) {
return a[0] * b[1] - a[1] * b[0];
}
function dot(a, b) {
return a[0] * b[0] + a[1] * b[1];
}
function findStartAngle(children) {
var min = children[0].x;
children.forEach(function(d) {
if (d.x < min)
min = d.x;
});
return min;
}
function findEndAngle(children) {
var max = children[0].x;
children.forEach(function(d) {
if (d.x > max)
max = d.x;
});
return max;
}
</script>