I'm trying to combine a D3 Pack Layout with links. It works in the initial state but when I try to zoom the positions of the svg path elements are not updated. How can I translate paths such that they are aligned to the nodes when the user performs zooming? Below is my zoom function.
To check the whole code, see js fiddle. I hope somebody can help me!
function zoom(d, i) {
var k = r / d.r / 2;
x.domain([d.x - d.r, d.x + d.r]);
y.domain([d.y - d.r, d.y + d.r]);
var t = vis.transition()
.duration(d3.event.altKey ? 7500 : 750);
t.selectAll("circle")
.attr("cx", function(d) {
return x(d.x);
})
.attr("cy", function(d) {
return y(d.y);
})
.attr("r", function(d) {
return k * d.r;
});
t.selectAll("text")
.attr("x", function(d) {
return x(d.x);
})
.attr("y", function(d) {
return y(d.y);
})
.style("opacity", function(d) {
return k * d.r > 20 ? 1 : 0;
});
console.log(t.selectAll('path'));
d3.selectAll('path')
.attr('class', function() {
// TODO: diversify
return 'child-branch';
})
.style('stroke', function(d) {
return d3.rgb(d3.scale.category20(d.target.by_alliance_with + 1)).darker();
})
.attr('d', function(d) {
console.log("d", d);
return linkArc(d);
});
Related
I am trying to make this swimlane chart work with latest d3.js version.
So far I have managed to migrate some of the d3.js v2 API's to d3.js V4.5 API but there are some issues that I am not able to figure out.
I am getting "Expected length, "NaN" error which seems to be coming from .call(brush)
plunker with changes I made
function display () {
var rects, labels
, minExtent = d3.timeDay(brush.extent()[0])
, maxExtent = d3.timeDay(brush.extent()[1])
, visItems = items.filter(function (d) { return d.start < maxExtent && d.end > minExtent});
mini.select('.brush').call(brush.extent([minExtent, maxExtent]));
x1.domain([minExtent, maxExtent]);
//x1Offset.range([0, x1(d3.time.day.ceil(now) - x1(d3.time.day.floor(now)))]);
// shift the today line
main.select('.main.todayLine')
.attr('x1', x1(now) + 0.5)
.attr('x2', x1(now) + 0.5);
// update the axis
main.select('.main.axis.date').call(x1DateAxis);
main.select('.main.axis.month').call(x1MonthAxis)
.selectAll('text')
.attr('dx', 5)
.attr('dy', 12);
// upate the item rects
rects = itemRects.selectAll('rect')
.data(visItems, function (d) { return d.id; })
.attr('x', function(d) { return x1(d.start); })
.attr('width', function(d) { return x1(d.end) - x1(d.start); });
rects.enter().append('rect')
.attr('x', function(d) { return x1(d.start); })
.attr('y', function(d) { return y1(d.lane) + .1 * y1(1) + 0.5; })
.attr('width', function(d) { return x1(d.end) - x1(d.start); })
.attr('height', function(d) { return .8 * y1(1); })
.attr('class', function(d) { return 'mainItem ' + d.class; });
rects.exit().remove();
// update the item labels
labels = itemRects.selectAll('text')
.data(visItems, function (d) { return d.id; })
.attr('x', function(d) { return x1(Math.max(d.start, minExtent)) + 2; });
labels.enter().append('text')
.text(function (d) { return 'Item\n\n\n\n Id: ' + d.id; })
.attr('x', function(d) { return x1(Math.max(d.start, minExtent)) + 2; })
.attr('y', function(d) { return y1(d.lane) + .4 * y1(1) + 0.5; })
.attr('text-anchor', 'start')
.attr('class', 'itemLabel');
labels.exit().remove();
}
I am trying to alter the traditional zooming feature on a sunburst chart. Traditionally when you click on a partition, that partition grows to cover 100% of the base layer while all other partitions on the same layer disappear. The children of the selected partition all grow to fill the newly created space.
My current code does just what I stated above. I would like to alter my code to allow for the selected partition to only take up 75% of the base layer. The children elements will grow to cover this new space but the remaining 25% will still contain all other non-selected partitions.
I have tried altering the 't' value that is returned from d3.interpolate() but I have had unpredictable results.
I hope my description is clear.
Does anyone have any thoughts on this?
<script>
var width = 960,
height = 700,
radius = Math.min(width, height) / 2;
var x = d3.scale.linear()
.range([0, 2 * Math.PI]);
var y = d3.scale.linear()
.range([0, radius]);
var color = d3.scale.category20c();
function percent(d) {
var percentage = (d.value / 956129) * 100;
return percentage.toFixed(2);
}
var tip = d3.tip()
.attr('class', 'd3-tip')
.offset([-10, 0])
.html(function(d) {
return "<strong>" + d.name + "</strong> <span style='color:red'>" + percent(d) + "%</span>";
})
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width / 2 + "," + (height / 2 + 10) + ")");
svg.call(tip);
var partition = d3.layout.partition()
.value(function(d) { return d.size; });
var arc = d3.svg.arc()
.startAngle(function(d) { return Math.max(0, Math.min(2 * Math.PI, x(d.x))); })
.endAngle(function(d) { return Math.max(0, Math.min(2 * Math.PI, x(d.x + d.dx))); })
.innerRadius(function(d) { return Math.max(0, y(d.y)) })
.outerRadius(function(d) { return Math.max(0, y(d.y + d.dy)) });
d3.json("flare.json", function(error, root) {
var g = svg.selectAll("g")
.data(partition.nodes(root))
.enter().append("g");
var path = g.append("path")
.attr("d", arc)
// .attr("stroke", 'black')
// .style("fill", function(d) { return color((d.children ? d : d.parent).name); })
.style("fill", function(d, i) {
return color(i);
})
.on("click", click)
.on('mouseover', tip.show)
.on('mouseout', tip.hide);
var text = g.append("text")
.attr("transform", function(d) { return "rotate(" + computeTextRotation(d) + ")"; })
.attr("x", function(d) { return y(d.y); })
.attr("dx", "6") // margin
.attr("dy", ".35em") // vertical-align
.text(function(d) {
if (percent(d) > 1.35) {
return d.name;
}
})
.attr('font-size', function(d) {
if (d.value < 100000) {
return '10px'
} else {
return '20px';
}
})
.on("click", click)
.on('mouseover', tip.show)
.on('mouseout', tip.hide);
function click(d) {
console.log(d)
// fade out all text elements
text.transition().attr("opacity", 0);
path
.transition()
.duration(750)
.attrTween("d", arcTween(d))
.each("end", function(e, i) {
// check if the animated element's data e lies within the visible angle span given in d
if (e.x >= d.x && e.x < (d.x + d.dx)) {
// get a selection of the associated text element
var arcText = d3.select(this.parentNode).select("text");
// fade in the text element and recalculate positions
arcText.transition().duration(750)
.attr("opacity", 1)
.attr("transform", function() { return "rotate(" + computeTextRotation(e) + ")" })
.attr("x", function(d) { return y(d.y); });
}
});
}
});
d3.select(self.frameElement).style("height", height + "px");
// Interpolate the scales!
function arcTween(d) {
console.log(d.name, x.domain())
console.log(d.name, y.domain())
console.log(d.name, y.range())
var xd = d3.interpolate(x.domain(), [d.x, d.x + d.dx]),
yd = d3.interpolate(y.domain(), [d.y, 1]),
yr = d3.interpolate(y.range(), [d.y ? 20 : 0, radius]);
return function(d, i) {
return i
? function(t) { return arc(d); }
: function(t) {
console.log(t)
x.domain(xd(t));
y.domain(yd(t)).range(yr(t));
return arc(d);
};
};
}
function computeTextRotation(d) {
return (x(d.x + d.dx / 2) - Math.PI / 2) / Math.PI * 180;
}
I found the solution here: https://bl.ocks.org/mbostock/1306365. This example manages the zoom without getting rid of the sibling nodes.
I am having trouble adding a text to the links that connect the nodes in the following D3JS connected node graph: http://jsfiddle.net/rqa0nvv2/1/
Could anyone please explain to me what is the process to add them?
var link = svg.selectAll(".link")
.data(links)
.enter().append("line")
.attr("class", function(d) { if(d.value == "visible") {return "link";} else return "" })
.style("stroke-width", function(d) { return Math.sqrt(d.stroke); });
link.append("svg:title").text(function(d) { return "Unit: " + ", Formula: ";});
Thanks!
Just a couple changes are needed to get the text attached to the edges.
First, the problem with your current method is that you are shoving the <text> inside the <line>. This just can't be done in SVG, so you need to create a <g> (group) to contain both the line and the text:
var link = svg.selectAll(".link")
.data(links)
.enter()
.append("g")
.attr("class", "link-group")
.append("line")
.attr("class", function(d) { return d.value == "visible" ? "link" : ""; })
.style("stroke-width", function(d) { return Math.sqrt(d.stroke); });
Ok, just adding this won't change anything visually, but it does create the groups that we need. So we need to add the text with something like:
var linkText = svg.selectAll(".link-group")
.append("text")
.data(force.links())
.text(function(d) { return d.value == "visible" ? "edge" : ""; })
.attr("x", function(d) { return (d.source.x + (d.target.x - d.source.x) * 0.5); })
.attr("y", function(d) { return (d.source.y + (d.target.y - d.source.y) * 0.5); })
.attr("dy", ".25em")
.attr("text-anchor", "middle");
This adds the text and initially positions it. Feel free (please!) style the text and change the content according to how you want it to look. Finally, we need to make it move with the force-directed graph:
force.on("tick", function() {
link
.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
linkText
.attr("x", function(d) { return (d.source.x + (d.target.x - d.source.x) * 0.5); })
.attr("y", function(d) { return (d.source.y + (d.target.y - d.source.y) * 0.5); });
});
Which is simple of course since it's the same thing that we already did!
I am having some issues with d3js and I can't figure out what is going on. The idea is to draw initial graph from some endpoint data (first img), that's fine works well. Each node is clickable, on click ajax call is made for that node and data is returned, based on some criteria at that point nodes.push(xx), links.push(xx) happens to add new nodes and restart() is called to draw new nodes and links. The issue is that the main graph is doing the correct thing (Not showed on screenshots as I had to put fake data on the first graph i.e. calling an endpoint /record/id/first doesn't return a data) but there are bunch of random nodes showing up in the right bottom corner.
You can also see on the example below, even if the data doesn't change after clicking on first/second/third something wrong goes with node.enter() after restart() with the same data passed in...
JS FIDDLE: http://jsfiddle.net/5754j86e/
var w = 1200,
h = 1200;
var nodes = [];
var links = [];
var node;
var link;
var texts;
var ids = [];
var circleWidth = 10;
var initialIdentifier = "marcin";
nodes = initialBuildNodes(initialIdentifier, sparql);
links = initialBuildLinks(sparql);
//Add SVG
var svg = d3.select('#chart').append('svg')
.attr('width', w)
.attr('height', h);
var linkGroup = svg.append("svg:g").attr("id", "link-group");
var nodeGroup = svg.append("svg:g").attr("id", "node-group");
var textGroup = svg.append("svg:g").attr("id", "text-group");
//Add Force Layout
var force = d3.layout.force()
.size([w, h])
.gravity(.05)
.charge(-1040);
force.linkDistance(120);
restart();
function restart() {
force.links(links)
console.log("LINKS ARE: ", links)
link = linkGroup.selectAll(".link").data (links);
link.enter().append('line')
.attr("class", "link");
link.exit().remove();
force.nodes(nodes)
console.log("NODES ARE: ", nodes)
node = nodeGroup.selectAll(".node").data (nodes);
node.enter().append("svg:g")
.attr("class", "node")
.call(force.drag);
node.append('circle')
.attr('cx', function(d) { return d.x; })
.attr('cy', function(d) { return d.y; })
.attr('r', circleWidth )
.attr('fill', function(d, i) {
if (i>0) { return palette.pink }
else { return palette.blue }
})
.on("click", function(d) {
nodeClicked (d);
})
.on('mouseenter', function(d){
nodeMouseEnter(d)
})
.on('mouseout', function(d){
nodeMouseOut(d)
});
node.exit().remove();
var annotation = textGroup.selectAll(".annotation").data (nodes);
annotation.enter().append("svg:g")
.attr("class", "annotation")
.append("text")
.attr("x", function(d) { return d.radius + 4 })
.attr("y", ".31em")
.attr("class", "label")
.text(function(d) { return d.name; });
annotation.exit().remove();
force.start();
}
function nodeClicked (d) {
// AJAX CALL happens here and bunch of nodes.push({name: "new name"}) happen
}
force.on('tick', function(e) {
link
.attr('x1', function(d) { return d.source.x })
.attr('y1', function(d) { return d.source.y })
.attr('x2', function(d) { return d.target.x })
.attr('y2', function(d) { return d.target.y })
node.attr('transform', function(d, i) {
return 'translate('+ d.x +', '+ d.y +')';
})
svg.selectAll(".annotation").attr("transform", function(d) {
var labelx = d.x + 13;
return "translate(" + labelx + "," + d.y + ")";
})
});
Okay I got it, based on the docs (https://github.com/mbostock/d3/wiki/Selections#enter):
var update_sel = svg.selectAll("circle").data(data)
update_sel.attr(/* operate on old elements only */)
update_sel.enter().append("circle").attr(/* operate on new elements only */)
update_sel.attr(/* operate on old and new elements */)
update_sel.exit().remove() /* complete the enter-update-exit pattern */
From my code you can see I do enter() and then once again I add circle on node in a separate statement.
node = nodeGroup.selectAll(".node").data (nodes);
node.enter().append("svg:g")
.attr("class", "node")
.call(force.drag);
node.append('circle')
.attr('cx', function(d) { return d.x; })
.attr('cy', function(d) { return d.y; })
.attr('r', circleWidth )
.attr('fill', function(d, i) {
if (i>0) { return palette.pink }
else { return palette.blue }
});
Adding circle should be within the scope of enter() otherwise it happens to all nodes not only the new nodes therefore it should be :
node.enter().append("svg:g")
.attr("class", "node")
.call(force.drag)
.append('circle')
.attr('cx', function(d) { return d.x; })
.attr('cy', function(d) { return d.y; })
.attr('r', circleWidth )
.attr('fill', function(d, i) {
if (i>0) { return palette.pink }
else { return palette.blue }
});
I am refactoring the d3.layout.pack graph example here into a reusable module. However, the root node is no longer in the center - I couldn't find the culprit.
Here is a jsfiddle demo of the app:
d3.visio.clustering = function module(){
var width = 700,//default width
height= 500;//default height
var svg;
//takes a DOM container or an array of DOM containers
function exports(_selection){
console.log(_selection);
_selection.each(function(_data){
var r = Math.min(width, height) - 10;
var x = d3.scale.linear().range([0, r]),
y = d3.scale.linear().range([0, r]),
node,
root;
var pack = d3.layout.pack()
.size([r, r])
.value(function(d) { return d.size; });
//if the svg element is already defined, don't define it again
if(!svg){
svg = d3.select(this).append("svg:svg");
}
svg.attr("width", width)
.attr("height", height)
.append("svg:g")
.attr("transform", "translate(" + (width - r) / 2 + "," + (height - r) / 2 + ")");
node = root = _data;
var nodes = pack.nodes(root);
svg.selectAll("circle")
.data(nodes)
.enter().append("svg:circle")
.attr("class", function(d) { return d.children ? "parent" : "child"; })
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; })
.attr("r", function(d) { return d.r; })
.on("click", function(d) { return zoom(node == d ? root : d); });
svg.selectAll("text")
.data(nodes)
.enter().append("svg:text")
.attr("class", function(d) { return d.children ? "parent" : "child"; })
.attr("x", function(d) { return d.x; })
.attr("y", function(d) { return d.y; })
.attr("dy", ".35em")
.attr("text-anchor", "middle")
.style("opacity", function(d) { return d.r > 20 ? 1 : 0; })
.text(function(d) { return d.name; });
d3.select(window).on("click", function() { zoom(root); });
function zoom(d, i) {
var k = r / d.r / 2;
x.domain([d.x - d.r, d.x + d.r]);
y.domain([d.y - d.r, d.y + d.r]);
var t = svg.transition()
.duration(d3.event.altKey ? 7500 : 750);
t.selectAll("circle")
.attr("cx", function(d) { return x(d.x); })
.attr("cy", function(d) { return y(d.y); })
.attr("r", function(d) { return k * d.r; });
t.selectAll("text")
.attr("x", function(d) { return x(d.x); })
.attr("y", function(d) { return y(d.y); })
.style("opacity", function(d) { return k * d.r > 20 ? 1 : 0; });
node = d;
d3.event.stopPropagation();
}
});
}
//getter and setter for property width
exports.width = function(_x){
if(!arguments.length) return width;
width = parseInt(_x);
return this;//allow method chaining
}
//getter and setter for property height
exports.height = function(_x){
if(!arguments.length) return height;
height = parseInt(_x);
return this;//allow method chaining
}
//getter and setter for property radius = r
exports.radius = function(_x){
if(!arguments.length) return r;
r = parseInt(_x);
return this//allow method chaining
}
return exports;
};
var cluster = d3.visio.clustering()
.width(document.getElementById("vis").offsetWidth)
.height(document.getElementById("vis").offsetHeight);
d3.select('#vis')
.datum(data)
.call(cluster);
Could you please check what's wrong?
The problem in your code is that you're appending a g element that is correctly translated, but you're appending everything else to the top level svg, which is not translated. To make it work, you can simply reassign svg with the top level g, i.e.
svg = svg.append("g").attr("transform", "translate(" + ... + ")");
Complete jsfiddle here.