I am working on a project to plot a stream of csv/Json data (bar chart) where the order of arrival of the data is important.
The Y axis is unique, but there are multiple X axes that correspond to different measures of the data.
I am having trouble producing a nice graph that looks like this, given the following data:
x0,x1,x2,y,idx
-1,z,w2,10,0
0,z,w2,9,1
1,z,w2,8,2
-1,k,w2,11,3
0,k,5q,5,4
1,k,5q,8,5
idx represent the order the data arrives in.
this is what I get
X=["idx","x0","x1","x2"];
Y=["y"];
var margin = {
top: 80,
right: 180,
bottom: 180,
left: 180
},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = [],
x = [];
var x_uid = d3.scale.ordinal()
.rangeRoundPoints([0, width]);
for (var idx = 0; idx < X.length; idx++) {
x[idx] = d3.scale.ordinal()
.rangeRoundPoints([0, width]);
xAxis[idx] = d3.svg.axis()
.scale(x[idx])
.orient("bottom");
}
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
// .ticks(8, "%");
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var data = [{
x0:-1,
x1:z,
x2:w2,
y:10,
idx:0
},
{
x0:0,
x1:z,
x2:w2,
y:10,
idx:1
},
{
x0:1,
x1:z,
x2:w2,
y:10,
idx:2
},
{
x0:-1,
x1:j,
x2:w2,
y:10,
idx:3
},
{
x0:0,
x1:j,
x2:5q,
y:10,
idx:4
},
{
x0:1,
x1:j,
x2:5q,
y:10,
idx:5
}]
if(data) {
for (var idx = 0; idx < X.length; idx++) {
x[idx].domain(data.map(function(d) {
return d[X[idx]];
}));
}
x_uid.domain(data.map(function(d) {
return d.idx;
}));
y.domain([0, d3.max(data, function(d) {
d.value = d[Y[0]];
return d.value;
})]);
for (var idx = 0; idx < X.length; idx++)
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + (height + idx * 25) + ")")
.call(xAxis[idx]);
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) {
return x_uid(d.idx);
})
.attr("width", 1)
.attr("y", function(d) {
return y(d.value);
})
.attr("height", function(d) {
return height - y(d.value);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.6/d3.min.js"></script>
<div id="chart"></div>
Offsetting the ticks' text is not an issue, but I am having problems with the interpolation due to the multiplicities of the values:
e.g. width of w2 > width of 5q
e.g. x0 axis should be -1 0 1 -1 0 1 but d3 interpolates as -1 0 1
I tried using rangeRoundBand instead of rangeRoundPoint but the issue is similar.
I also tried playing around with tickValues but to no avail.
I tried doing my own interpolation using linear scales instead of ordinal, but it becomes very messy very quickly because is forces me to manually calculate and adjust all the ticks' positions and texts while taking into account the d3.behavior zoom level etc...
function adjustTickPosition(selection, count, scale, translate, rotate) {
//selection = axis
//count = multiplicity of each tick
//scale = d3.behavior.zoom scale
//translate = d3.behavior.zoom translation
//rotate = irrelevent here (additional styling)
console.info( selection.selectAll("g.tick"))
// cancel previous position
//
// /!\ For some reason there is always 100 ticks instead of the appropriate number
//
selection.selectAll("g.tick")
.attr("transform", "translate(0,0)");
// align tick marks
selection.selectAll("g.tick line")
.attr('transform', function (d, k) {
if (k <= count.length - 1) {
var newPosition = scaleTranslate(count[k]);
if (newPosition > width || newPosition < 0) {
d3.select(this.parentNode).style("visibility", "hidden");
} else
d3.select(this.parentNode).style("visibility", "visible");
return 'translate(' + newPosition + ',0)';
} else
return 'translate(0,0)';
});
// offset tick label compared to tick marks
selection.selectAll("g.tick text")
.attr('transform', function (d, k) {
if (k <= count.length - 1) {
var pos, transform;
if (k > 0) pos = (count[k - 1] + count[k]) / 2;
else pos = count[k] / 2;
var newPosition = scaleTranslate(pos);
if (newPosition > width || newPosition < 0) {
d3.select(this.parentNode).style("visibility", "hidden");
} else
d3.select(this.parentNode).style("visibility", "visible");
var transform = 'translate(' + newPosition + ',0)';
if (rotate) transform += ' rotate(-65)';
return transform;
} else
return 'translate(0,0)';
});
if (rotate) selection.selectAll("g.tick text").style("text-anchor", "end")
.attr("dx", "-.8em")
.attr("dy", ".15em");
return selection;
function scaleTranslate(v) {
return v / count[count.length - 1] * width * scale + translate[0];
}
}
Could someone please show me how to properly use axes ticks for this kind of purpose?
Thank you in advance
I made my own class/object because d3 was apparently not meant for this kind of graph
function chartAxis(key, args) {
//***************************
// PRIVATE
//***************************
var _direction = args ? (args.direction || "x") : "x";
var _width = args ? (args.width || 500) : 500;
var _alignTicks = args ? (args.alignTicks || false) : false;
var _tickSize = args ? (args.tickSize || 0) : 0;
var _numTicks = args ? (args.numTicks || 10) : 10;
var _offset = args ? (args.offset || 25) : 25;
var _zoom = args ? (args.zoom || {
s: 1,
t: 0
}) : {
s: 1,
t: 0
};
var _totalLength;
function consecutiveReduction(list, key) {
var Bin = function (val, cnt) {
return {
value: val,
count: cnt,
cumulativeCount: 0,
center: 0,
position: 0
};
};
var result = list.map(function (d) {
return key ? d[key] : d;
}).reduce(function (acc, d) {
var currentBin = acc[acc.length - 1];
if ((acc.length > 0) && d === currentBin.value) {
//add to current bin
currentBin.count++;
} else {
//create new bin
acc.push(new Bin(d, 1));
}
return acc;
}, []);
result.forEach(accumulate);
result.forEach(positionTick);
return result;
}
function positionTick(d) {
d.position = ApplyZoom(d.cumulativeCount);
d.center = _alignTicks ? d.position : ApplyZoom(d.cumulativeCount - d.count / 2);
function ApplyZoom(val) {
var translate;
if (_zoom.t.length > 1)
translate = (_direction == "x") ? _zoom.t[0] : _zoom.t[1];
else
translate = _zoom.t;
return val / _totalLength * _width * _zoom.s + translate;
}
}
function accumulate(d, i, arr) {
d.cumulativeCount = d.count;
if (i > 0) d.cumulativeCount += arr[i - 1].cumulativeCount;
}
//***************************
// PUBLIC
//***************************
var xAxis = function (selection) {
selection.each(function (data) {
// calculate
_totalLength = data.length;
var tickData = consecutiveReduction(data, key);
console.log(tickData.map(function (d) {
return d.count
}))
console.table(data,key)
//create parent axis with clip-path
var axis = d3.select(this)
.attr("id", key);
axis.selectAll("#clipAxis-" + key).data([1]).enter()
.append("clipPath")
.attr("id", "clipAxis-" + key)
.append("svg:rect")
.attr("x", 0)
.attr("y", _offset - _tickSize)
.attr("width", _width)
.attr("height", 25 + _tickSize);
// Axis line and label
var axisLine = axis.selectAll(".axisLine").data([1]).enter();
axisLine.append("line").attr({
x1: 0,
y1: _offset,
x2: _width,
y2: _offset,
class: "axisLine"
});
axisLine.append("text")
.text(key)
.attr({
x: _width + 10,
y: _offset
}).style("text-anchor", "start");
// tick on the axis
var ticks = axis.selectAll("g.tick")
.data(tickData);
// ENTER
var newticks = ticks.enter().append("g").attr("class", "tick");
newticks.append("line");
newticks.append("text");
// UPDATE
ticks.attr("clip-path", "url(#clipAxis-" + key + ")");
ticks.select(".tick line")
.attr("x1", function (d) {
return d.position
})
.attr("x2", function (d) {
return d.position
})
.attr("y1", function (d) {
return _offset - _tickSize
})
.attr("y2", function (d) {
return _offset + 5
});
ticks.select(".tick text")
.text(function (d) {
return d.value;
})
.attr("x", function (d) {
return d.center;
})
.attr("y", function (d) {
return _offset + 10;
})
.style("text-anchor", "middle")
.style("text-length", function (d) {
return (0.6 * 2 * (d.position - d.center)) + "px";
});
// EXIT
ticks.exit().remove();
})
};
var yAxis = function (selection) {
selection.each(function (data) {
// calculate
_totalLength = data.length;
var tickData = d3.extent(data, function (d) {
return d[key];
});
var tickRange = (tickData[1] - tickData[0]) / (_numTicks - 4 + 1); // -4 -> [0.85*min min ... max 1.15*max]
console.log(tickData.map(function (d) {
return d.count
}))
console.log(_tickSize)
//create parent axis with clip-path
var axis = axisLine = d3.select(this)
.attr("id", key);
axis.selectAll("#clipAxis-" + key).data([1]).enter()
.append("clipPath")
.attr("id", "clipAxis-" + key)
.append("svg:rect")
.attr("x", _offset)
.attr("y", 0)
.attr("width", _width)
.attr("height", 25 + _tickSize);
// Axis line and label
axisLine = axis.selectAll(".axisLine").data([1]).enter();
axisLine.append("line").attr({
x1: _offset,
y1: 0,
x2: _offset,
y2: _width,
class: "axisLine"
});
axisLine.append("text")
.text(key)
.attr({
x: _offset,
y: -10
}).style("text-anchor", "start");
// tick on the axis
var ticks = axis.selectAll("g.tick")
.data(tickData);
// ENTER
var newticks = ticks.enter().append("g").attr("class", "tick");
newticks.append("line");
newticks.append("text");
// UPDATE
ticks.attr("clip-path", "url(#clipAxis-" + key + ")");
ticks.select(".tick line")
.attr("x1", function (d) {
return _offset - 5
})
.attr("x2", function (d) {
return _offset + _tickSize
})
.attr("y1", function (d) {
return d.position
})
.attr("y2", function (d) {
return d.position
});
ticks.select(".tick text")
.text(function (d) {
return d.value;
})
.attr("x", function (d) {
return _offset + 10;
})
.attr("y", function (d) {
return d.center;
})
.style("text-anchor", "middle")
.style("text-length", function (d) {
return (0.6 * 2 * (d.position - d.center)) + "px";
});
// EXIT
ticks.exit().remove();
}); // end select.foreach
}; // end yAxis
xAxis.BindToZoom = function (zoomObject) {
_zoom = zoomObject;
return xAxis;
}
yAxis.BindToZoom = function (zoomObject) {
_zoom = zoomObject;
return yAxis;
}
return (_direction == "x") ? xAxis : yAxis;
}
Usage:
function chartAxis(key, args) {
//***************************
// PRIVATE
//***************************
var _direction = args ? (args.direction || "x") : "x";
var _width = args ? (args.width || 500) : 500;
var _alignTicks = args ? (args.alignTicks || false) : false;
var _tickSize = args ? (args.tickSize || 0) : 0;
var _numTicks = args ? (args.numTicks || 10) : 10;
var _offset = args ? (args.offset || 25) : 25;
var _zoom = args ? (args.zoom || {
s: 1,
t: 0
}) : {
s: 1,
t: 0
};
var _totalLength;
function consecutiveReduction(list, key) {
var Bin = function(val, cnt) {
return {
value: val,
count: cnt,
cumulativeCount: 0,
center: 0,
position: 0
};
};
var result = list.map(function(d) {
return key ? d[key] : d;
}).reduce(function(acc, d) {
var currentBin = acc[acc.length - 1];
if ((acc.length > 0) && d === currentBin.value) {
//add to current bin
currentBin.count++;
} else {
//create new bin
acc.push(new Bin(d, 1));
}
return acc;
}, []);
result.forEach(accumulate);
result.forEach(positionTick);
return result;
}
function positionTick(d) {
d.position = ApplyZoom(d.cumulativeCount);
d.center = _alignTicks ? d.position : ApplyZoom(d.cumulativeCount - d.count / 2);
function ApplyZoom(val) {
var translate;
if (_zoom.t.length > 1)
translate = (_direction == "x") ? _zoom.t[0] : _zoom.t[1];
else
translate = _zoom.t;
return val / _totalLength * _width * _zoom.s + translate;
}
}
function accumulate(d, i, arr) {
d.cumulativeCount = d.count;
if (i > 0) d.cumulativeCount += arr[i - 1].cumulativeCount;
}
//***************************
// PUBLIC
//***************************
var xAxis = function(selection) {
selection.each(function(data) {
// calculate
_totalLength = data.length;
var tickData = consecutiveReduction(data, key);
//create parent axis with clip-path
var axis = d3.select(this)
.attr("id", key);
axis.selectAll("#clipAxis-" + key).data([1]).enter()
.append("clipPath")
.attr("id", "clipAxis-" + key)
.append("svg:rect")
.attr("x", 0)
.attr("y", _offset - _tickSize)
.attr("width", _width)
.attr("height", 25 + _tickSize);
// Axis line and label
var axisLine = axis.selectAll(".axisLine").data([1]).enter();
axisLine.append("line").attr({
x1: 0,
y1: _offset,
x2: _width,
y2: _offset,
class: "axisLine"
});
axisLine.append("text")
.text(key)
.attr({
x: _width + 10,
y: _offset
}).style("text-anchor", "start");
// tick on the axis
var ticks = axis.selectAll("g.tick")
.data(tickData);
// ENTER
var newticks = ticks.enter().append("g").attr("class", "tick");
newticks.append("line");
newticks.append("text");
// UPDATE
ticks.attr("clip-path", "url(#clipAxis-" + key + ")");
ticks.select(".tick line")
.attr("x1", function(d) {
return d.position
})
.attr("x2", function(d) {
return d.position
})
.attr("y1", function(d) {
return _offset - _tickSize
})
.attr("y2", function(d) {
return _offset + 5
});
ticks.select(".tick text")
.text(function(d) {
return d.value;
})
.attr("x", function(d) {
return d.center;
})
.attr("y", function(d) {
return _offset + 10;
})
.style("text-anchor", "middle")
.style("text-length", function(d) {
return (0.6 * 2 * (d.position - d.center)) + "px";
});
// EXIT
ticks.exit().remove();
})
};
var yAxis = function(selection) {
selection.each(function(data) {
// calculate
_totalLength = data.length;
var tickData = consecutiveReduction(data, key);
//create parent axis with clip-path
var axis = axisLine = d3.select(this)
.attr("id", key);
axis.selectAll("#clipAxis-" + key).data([1]).enter()
.append("clipPath")
.attr("id", "clipAxis-" + key)
.append("svg:rect")
.attr("x", _offset)
.attr("y", 0)
.attr("width", _width)
.attr("height", 25 + _tickSize);
// Axis line and label
axisLine = axis.selectAll(".axisLine").data([1]).enter();
axisLine.append("line").attr({
x1: _offset,
y1: 0,
x2: _offset,
y2: _width,
class: "axisLine"
});
axisLine.append("text")
.text(key)
.attr({
x: _offset,
y: -10
}).style("text-anchor", "start");
// tick on the axis
var ticks = axis.selectAll("g.tick")
.data(tickData);
// ENTER
var newticks = ticks.enter().append("g").attr("class", "tick");
newticks.append("line");
newticks.append("text");
// UPDATE
ticks.attr("clip-path", "url(#clipAxis-" + key + ")");
ticks.select(".tick line")
.attr("x1", function(d) {
return _offset - 5
})
.attr("x2", function(d) {
return _offset + _tickSize
})
.attr("y1", function(d) {
return d.position
})
.attr("y2", function(d) {
return d.position
});
ticks.select(".tick text")
.text(function(d) {
return d.value;
})
.attr("x", function(d) {
return _offset + 10;
})
.attr("y", function(d) {
return d.center;
})
.style("text-anchor", "middle")
.style("text-length", function(d) {
return (0.6 * 2 * (d.position - d.center)) + "px";
});
// EXIT
ticks.exit().remove();
}); // end select.foreach
}; // end yAxis
xAxis.BindToZoom = function(zoomObject) {
_zoom = zoomObject;
return xAxis;
}
yAxis.BindToZoom = function(zoomObject) {
_zoom = zoomObject;
return yAxis;
}
return (_direction == "x") ? xAxis : yAxis;
}
var data = [{
"a": 1,
"b": 3,
c: 1
}, {
"a": 1,
"b": 3,
c: 2
}, {
"a": 1,
"b": 2,
c: 3
}, {
"a": 1,
"b": 3,
c: 4
}, {
"a": 2,
"b": 3,
c: 5
}, {
"a": 3,
"b": "a",
c: 6
}, {
"a": 1,
"b": "a",
c: 7
}];
X = ["b", "a", "c"];
var axesDOM = d3.select("svg")
.selectAll(".axis")
.data(X).enter()
.append("g").attr("class", "axis");
axesDOM.each(function(x, i) {
d3.select(this).datum(data)
.call(new chartAxis(x, {
width: 200,
offset: 25 + i * 25,
direction: "x"
}));
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<svg width="200px" height="200px"></svg>
Related
I have been trying to create a stacked segment chart for the past few days and between all the trigonometry and key stacking it has truly been a nightmare for me to apply what seems to be the most basic of tweaks. Currently my segment chart has data that is sorted in descending order based on Active equity. I want to change this to have the data sorted by total.
const csvData = `State,Active equity,Passive equity,Fixed income,Mixed assets
BlackRock,1,17,0,0
Fidelity,13,2,0,0
SSgA,12,0,0,0
Hang Seng,11,0,0,0
UBS,9,0,0,1
Schroders,6,0,2,1
JP Morgan,5,2,0,1
Value Partners,1,0,6,0
First State,5,0,0,0
Invesco,4,1,0,0
HSBC,1,1,1,1
DBS,0,2,1,0
BOCI,1,1,1,0
CSOP,0,2,1,0
Principal,1,1,0,0
Allianz,2,1,0,0
Yuanta,0,2,1,0
Manulife,1,0,1,0
Aberdeen,2,0,0,0
Mirae,1,1,0,0
,0,0,0,0`;
//const data = d3.csvParse(csvData, d3.autoType);
var margins = {top:20, bottom:300, left:30, right:100};
var height = 600;
var width = 900;
var totalWidth = width+margins.left+margins.right;
var totalHeight = height+margins.top+margins.bottom;
var outerRadius = (400 / 2);
var innerRadius = 15;
var svg = d3.select('body')
.append('svg')
.attr('width', totalWidth)
.attr('height', totalHeight);
var graphGroup = svg.append('g')
.attr('transform', "translate(250,250)");
var x = d3.scaleBand()
.range([0, 2 * Math.PI])
.align(0);
var y = d3.scaleRadial()
.range([innerRadius, outerRadius]);
var z = d3.scaleOrdinal()
.range(["#003366", "#4f81b9", "#95b3d7", "#f6d18b"]);
d3.csv("csvData", function(d, i, columns) {
for (i = 1, t = 0; i < columns.length; ++i) t += d[columns[i]] = +d[columns[i]];
d.total = t;
return d;
}, function(error, data) {
if (error) throw error;
weave(data, function(a, b) { return b[data.columns[6]] - a[data.columns[6]]; });
x.domain(data.map(function(d) { return d.State; }));
y.domain([0, d3.max(data, function(d) { return d.total; })*1.3]);
z.domain(data.columns.slice(1));
graphGroup.append('g')
.selectAll('g')
.data(d3.stack().keys(data.columns.slice(1))(data))
.enter().append("g")
.selectAll(".bg-arc2")
.data(function(d) { return d; })
.enter().append("path")
.attr("d", d3.arc()
.innerRadius(innerRadius)
.outerRadius(outerRadius+2)
.startAngle(function(d) { return x(d.data.State); })
.endAngle(function(d) { return x(d.data.State) + x.bandwidth()*.90; })
.padAngle(0.1)
.padRadius(innerRadius))
.attr('class','bg-arc2')
.attr('fill','none')
.attr('stroke-width','4px')
.attr('stroke','#003366');
graphGroup.append('circle')
.attr('cx',0)
.attr('cy',0)
.attr('r',200)
.style('fill','#d9d9d9');
graphGroup.append('g')
.selectAll('g')
.data(d3.stack().keys(data.columns.slice(1))(data))
.enter().append("g")
.selectAll(".bg-arc")
.data(function(d) { return d; })
.enter().append("path")
.attr("d", d3.arc()
.innerRadius(innerRadius)
.outerRadius(outerRadius)
.startAngle(function(d) { return x(d.data.State); })
.endAngle(function(d) { return x(d.data.State) + x.bandwidth()*.95; })
.padAngle(0.1)
.padRadius(innerRadius))
.attr('class','bg-arc')
.attr('fill','#fff');
graphGroup.append('circle')
.attr('cx',0)
.attr('cy',0)
.attr('r',innerRadius)
.style('fill','#fff');
var stackedData = d3.stack().keys(data.columns.slice(1))(data);
var stackedData2 = stackedData.sort(function(a,b) { return d3.descending(a[0].data.total, b[0].data.total)});
console.log(stackedData[0][0].data.total)
console.log(stackedData2);
graphGroup.append("g")
.selectAll("g")
.data(stackedData)
.enter().append("g")
.attr("fill", function(d) { return z(d.key); })
.selectAll("path")
.data(function(d) { return d; })
.enter().append("path")
.attr("d", d3.arc()
.innerRadius(function(d) { return y(d[0]); })
.outerRadius(function(d) { return y(d[1]); })
.startAngle(function(d) { return x(d.data.State); })
.endAngle(function(d) { return x(d.data.State) + x.bandwidth()*.95; })
.padAngle(0.04)
.padRadius(innerRadius));
var label = graphGroup.append("g")
.selectAll("g")
.data(data)
.enter().append("g")
.attr("text-anchor", "middle")
.attr("transform", function(d) { return "rotate(" + ((x(d.State) + x.bandwidth() / 2) * 180 / Math.PI - 90) + ")translate(" + (outerRadius+25) + ",0)"; });
label.append("text")
.attr("transform", function(d) { return (x(d.State) + x.bandwidth() / 2 + Math.PI / 2) % (2 * Math.PI) < Math.PI ? "rotate(90)translate(0,16)" : "rotate(-90)translate(0,-9)"; })
.text(function(d) { return d.State; });
var yAxis = graphGroup.append("g")
.attr("text-anchor", "end");
var yTick = yAxis
.selectAll("g")
.data(y.ticks(10).slice(1))
.enter().append("g");
});
function weave(array, compare) {
var i = -1, j, n = array.sort(compare).length, weave = new Array(n);
while (++i < n) weave[i] = array[(j = i << 1) >= n ? (n - i << 1) - 1 : j];
while (--n >= 0) array[n] = weave[n];
}
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://gist.githubusercontent.com/mbostock/3686329aa6e1f5938df8eef12ec353fe/raw/1ab722df937c3ac86cac8292e34cfc7279b017f8/d3-scale-radial.js"></script>
Relevant code here:
var stackedData = d3.stack().keys(data.columns.slice(1))(data);
var stackedData2 = stackedData.sort(function(a,b) { return d3.descending(a[0].data.total, b[0].data.total)});
console.log(stackedData[0][0].data.total)
console.log(stackedData2);
I checked via the console log to make sure I was slicing at the correct place, which I was, as confirmed by console.log(stackedData[0][0].data.total) which returned the correct value of 18.
However I can't apply the sort as desired. The data is still sorted by Active equity and not total.
Question
The default sort for stacked radial charts seems to be whatever the first variable is. In my case, it's Active equity. With that in mind, based off my progress above, what is keeping me from applying the descending order sort by data.total as opposed to the default?
Your question is not clear: are you talking about sorting the segments within each slice, or are you talking about sorting the slices themselves?
For the first case, there is an method named order, that you can use with the stack generator (the link goes to v5 docs, which are a bit different from v4). However, because you said "I want to change [the order] to have the data sorted by total", it seems to me that you're talking about sorting the slices. If that is correct, two observations: it's not sorted by Active equity, right now it's just the order of the objects in the original data array.
For sorting by total you just need to change that array:
data.sort(function(a, b) {
return b.total - a.total;
});
Also, get rid of the weave function.
Here is the result:
(function(global, factory) {
typeof exports === "object" && typeof module !== "undefined" ? factory(exports, require("d3-scale")) :
typeof define === "function" && define.amd ? define(["exports", "d3-scale"], factory) :
(factory(global.d3 = global.d3 || {}, global.d3));
}(this, function(exports, d3Scale) {
'use strict';
function square(x) {
return x * x;
}
function radial() {
var linear = d3Scale.scaleLinear();
function scale(x) {
return Math.sqrt(linear(x));
}
scale.domain = function(_) {
return arguments.length ? (linear.domain(_), scale) : linear.domain();
};
scale.nice = function(count) {
return (linear.nice(count), scale);
};
scale.range = function(_) {
return arguments.length ? (linear.range(_.map(square)), scale) : linear.range().map(Math.sqrt);
};
scale.ticks = linear.ticks;
scale.tickFormat = linear.tickFormat;
return scale;
}
exports.scaleRadial = radial;
Object.defineProperty(exports, '__esModule', {
value: true
});
}));
const csvData = `State,Active equity,Passive equity,Fixed income,Mixed assets
BlackRock,1,17,0,0
Fidelity,13,2,0,0
SSgA,12,0,0,0
Hang Seng,11,0,0,0
UBS,9,0,0,1
Schroders,6,0,2,1
JP Morgan,5,2,0,1
Value Partners,1,0,6,0
First State,5,0,0,0
Invesco,4,1,0,0
HSBC,1,1,1,1
DBS,0,2,1,0
BOCI,1,1,1,0
CSOP,0,2,1,0
Principal,1,1,0,0
Allianz,2,1,0,0
Yuanta,0,2,1,0
Manulife,1,0,1,0
Aberdeen,2,0,0,0
Mirae,1,1,0,0
,0,0,0,0`;
const data = d3.csvParse(csvData, function(d, i, columns) {
for (i = 1, t = 0; i < columns.length; ++i) t += d[columns[i]] = +d[columns[i]];
d.total = t;
return d;
});
data.sort(function(a, b) {
return b.total - a.total;
});
var margins = {
top: 20,
bottom: 300,
left: 30,
right: 100
};
var height = 600;
var width = 900;
var totalWidth = width + margins.left + margins.right;
var totalHeight = height + margins.top + margins.bottom;
var outerRadius = (400 / 2);
var innerRadius = 15;
var svg = d3.select('body')
.append('svg')
.attr('width', totalWidth)
.attr('height', totalHeight);
var graphGroup = svg.append('g')
.attr('transform', "translate(250,250)");
var x = d3.scaleBand()
.range([0, 2 * Math.PI])
.align(0);
var y = d3.scaleRadial()
.range([innerRadius, outerRadius]);
var z = d3.scaleOrdinal()
.range(["#003366", "#4f81b9", "#95b3d7", "#f6d18b"]);
x.domain(data.map(function(d) {
return d.State;
}));
y.domain([0, d3.max(data, function(d) {
return d.total;
}) * 1.3]);
z.domain(data.columns.slice(1));
graphGroup.append('g')
.selectAll('g')
.data(d3.stack().keys(data.columns.slice(1))(data))
.enter().append("g")
.selectAll(".bg-arc2")
.data(function(d) {
return d;
})
.enter().append("path")
.attr("d", d3.arc()
.innerRadius(innerRadius)
.outerRadius(outerRadius + 2)
.startAngle(function(d) {
return x(d.data.State);
})
.endAngle(function(d) {
return x(d.data.State) + x.bandwidth() * .90;
})
.padAngle(0.1)
.padRadius(innerRadius))
.attr('class', 'bg-arc2')
.attr('fill', 'none')
.attr('stroke-width', '4px')
.attr('stroke', '#003366');
graphGroup.append('circle')
.attr('cx', 0)
.attr('cy', 0)
.attr('r', 200)
.style('fill', '#d9d9d9');
graphGroup.append('g')
.selectAll('g')
.data(d3.stack().keys(data.columns.slice(1))(data))
.enter().append("g")
.selectAll(".bg-arc")
.data(function(d) {
return d;
})
.enter().append("path")
.attr("d", d3.arc()
.innerRadius(innerRadius)
.outerRadius(outerRadius)
.startAngle(function(d) {
return x(d.data.State);
})
.endAngle(function(d) {
return x(d.data.State) + x.bandwidth() * .95;
})
.padAngle(0.1)
.padRadius(innerRadius))
.attr('class', 'bg-arc')
.attr('fill', '#fff');
graphGroup.append('circle')
.attr('cx', 0)
.attr('cy', 0)
.attr('r', innerRadius)
.style('fill', '#fff');
var stackedData = d3.stack()
.keys(data.columns.slice(1))
(data);
graphGroup.append("g")
.selectAll("g")
.data(stackedData)
.enter().append("g")
.attr("fill", function(d) {
return z(d.key);
})
.selectAll("path")
.data(function(d) {
return d;
})
.enter().append("path")
.attr("d", d3.arc()
.innerRadius(function(d) {
return y(d[0]);
})
.outerRadius(function(d) {
return y(d[1]);
})
.startAngle(function(d) {
return x(d.data.State);
})
.endAngle(function(d) {
return x(d.data.State) + x.bandwidth() * .95;
})
.padAngle(0.04)
.padRadius(innerRadius));
var label = graphGroup.append("g")
.selectAll("g")
.data(data)
.enter().append("g")
.attr("text-anchor", "middle")
.attr("transform", function(d) {
return "rotate(" + ((x(d.State) + x.bandwidth() / 2) * 180 / Math.PI - 90) + ")translate(" + (outerRadius + 25) + ",0)";
});
label.append("text")
.attr("transform", function(d) {
return (x(d.State) + x.bandwidth() / 2 + Math.PI / 2) % (2 * Math.PI) < Math.PI ? "rotate(90)translate(0,16)" : "rotate(-90)translate(0,-9)";
})
.text(function(d) {
return d.State;
});
var yAxis = graphGroup.append("g")
.attr("text-anchor", "end");
var yTick = yAxis
.selectAll("g")
.data(y.ticks(10).slice(1))
.enter().append("g");
function weave(array, compare) {
var i = -1,
j, n = array.sort(compare).length,
weave = new Array(n);
while (++i < n) weave[i] = array[(j = i << 1) >= n ? (n - i << 1) - 1 : j];
while (--n >= 0) array[n] = weave[n];
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.13.0/d3.min.js"></script>
I'm using D3 and javascript to create a BiLevel Partition following this example. The labels in the left side of the diagram are upside down, and I was trying to rotate them, but I've not been successful yet.
I found numerous cases of people with the same problem, but using Sunburst. Also tried to implement those solutions, but I'm still unable to solve this problem.
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
/*var margin = {top: 350, right: 480, bottom: 350, left: 480},
radius = Math.min(margin.top, margin.right, margin.bottom, margin.left) - 10;*/
var width = 1200,
height = 1200,
radius = Math.min(width, height) / 2;
function filter_min_arc_size_text(d, i) {return (d.dx*d.depth*radius/3)>14};
var hue = d3.scale.category10();
var luminance = d3.scale.sqrt()
.domain([0, 1e6])
.clamp(true)
.range([90, 20]);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width / 2 + "," + (height / 2 + 10) + ")");
var partition = d3.layout.partition()
.sort(function(a, b) { return d3.ascending(a.name, b.name); })
.size([2 * Math.PI, radius]);
var arc = d3.svg.arc()
.startAngle(function(d) { return d.x; })
.endAngle(function(d) { return d.x + d.dx - .01 / (d.depth + .5); })
.innerRadius(function(d) { return radius / 3 * d.depth; })
.outerRadius(function(d) { return radius / 3 * (d.depth + 1) - 1; });
//Tooltip description
var tooltip = d3.select("body")
.append("div")
.attr("id", "tooltip")
.style("position", "absolute")
.style("z-index", "10")
.style("opacity", 0);
function format_number(x) {
return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}
function format_description(d) {
var description = d.description;
return /* '<b>' + d.name + '</b></br>'+*/ d.description + '<br> (' + format_number(d.value) + ')';
}
function computeTextRotation(d) {
var ang = ((d.x + d.dx / 2) - Math.PI / 2) / Math.PI * 180;
return (ang > 90) ? 180 + ang : ang;
}
function mouseOverArc(d) {
d3.select(this).attr("stroke","black")
tooltip.html(format_description(d));
return tooltip.transition()
.duration(50)
.style("opacity", 0.9);
}
function mouseOutArc(){
d3.select(this).attr("stroke","")
return tooltip.style("opacity", 0);
}
function mouseMoveArc (d) {
return tooltip
.style("top", (d3.event.pageY-10)+"px")
.style("left", (d3.event.pageX+10)+"px");
}
var root_ = null;
d3.json("flare.json", function(error, root) {
if (error) return console.warn(error);
// Compute the initial layout on the entire tree to sum sizes.
// Also compute the full name and fill color for each node,
// and stash the children so they can be restored as we descend.
partition
.value(function(d) { return d.size; })
.nodes(root)
.forEach(function(d) {
d._children = d.children;
d.sum = d.value;
d.key = key(d);
d.fill = fill(d);
});
// Now redefine the value function to use the previously-computed sum.
partition
.children(function(d, depth) { return depth < 2 ? d._children : null; })
.value(function(d) { return d.sum; });
var center = svg.append("circle")
.attr("r", radius / 3)
.on("click", zoomOut);
center.append("title")
.text("zoom out");
var partitioned_data=partition.nodes(root).slice(1)
var path = svg.selectAll("path")
.data(partitioned_data)
.enter().append("path")
.attr("d", arc)
.style("fill", function(d) { return d.fill; })
.each(function(d) { this._current = updateArc(d); })
.on("click", zoomIn)
.on("mouseover", mouseOverArc)
.on("mousemove", mouseMoveArc)
.on("mouseout", mouseOutArc);
var texts = svg.selectAll("text")
.data(partitioned_data)
.enter().append("text")
.filter(filter_min_arc_size_text)
.attr("transform", function(d) { return "rotate(" + computeTextRotation(d) + ")"; })
.attr("x", function(d) { return radius / 3 * d.depth; })
.attr("dx", "6") // margin
.attr("dy", ".35em") // vertical-align
.text(function(d,i) {return d.name})
function zoomIn(p) {
if (p.depth > 1) p = p.parent;
if (!p.children) return;
zoom(p, p);
}
function zoomOut(p) {
if (!p.parent) return;
zoom(p.parent, p);
}
// Zoom to the specified new root.
function zoom(root, p) {
if (document.documentElement.__transition__) return;
// Rescale outside angles to match the new layout.
var enterArc,
exitArc,
outsideAngle = d3.scale.linear().domain([0, 2 * Math.PI]);
function insideArc(d) {
return p.key > d.key
? {depth: d.depth - 1, x: 0, dx: 0} : p.key < d.key
? {depth: d.depth - 1, x: 2 * Math.PI, dx: 0}
: {depth: 0, x: 0, dx: 2 * Math.PI};
}
function outsideArc(d) {
return {depth: d.depth + 1, x: outsideAngle(d.x), dx: outsideAngle(d.x + d.dx) - outsideAngle(d.x)};
}
center.datum(root);
// When zooming in, arcs enter from the outside and exit to the inside.
// Entering outside arcs start from the old layout.
if (root === p) enterArc = outsideArc, exitArc = insideArc, outsideAngle.range([p.x, p.x + p.dx]);
var new_data=partition.nodes(root).slice(1)
path = path.data(new_data, function(d) { return d.key; });
// When zooming out, arcs enter from the inside and exit to the outside.
// Exiting outside arcs transition to the new layout.
if (root !== p) enterArc = insideArc, exitArc = outsideArc, outsideAngle.range([p.x, p.x + p.dx]);
d3.transition().duration(d3.event.altKey ? 7500 : 750).each(function() {
path.exit().transition()
.style("fill-opacity", function(d) { return d.depth === 1 + (root === p) ? 1 : 0; })
.attrTween("d", function(d) { return arcTween.call(this, exitArc(d)); })
.remove();
path.enter().append("path")
.style("fill-opacity", function(d) { return d.depth === 2 - (root === p) ? 1 : 0; })
.style("fill", function(d) { return d.fill; })
.on("click", zoomIn)
.on("mouseover", mouseOverArc)
.on("mousemove", mouseMoveArc)
.on("mouseout", mouseOutArc)
.each(function(d) { this._current = enterArc(d); });
path.transition()
.style("fill-opacity", 1)
.attrTween("d", function(d) { return arcTween.call(this, updateArc(d)); });
});
texts = texts.data(new_data, function(d) { return d.key; })
texts.exit()
.remove()
texts.enter()
.append("text")
texts.style("opacity", 0)
.attr("transform", function(d) { return "rotate(" + computeTextRotation(d) + ")"; })
.attr("x", function(d) { return radius / 3 * d.depth; })
.attr("dx", "6") // margin
.attr("dy", ".35em") // vertical-align
.filter(filter_min_arc_size_text)
.text(function(d,i) {return d.name})
.transition().delay(750).style("opacity", 1)
}
});
function key(d) {
var k = [], p = d;
while (p.depth) k.push(p.name), p = p.parent;
return k.reverse().join(".");
}
function fill(d) {
var p = d;
while (p.depth > 1) p = p.parent;
var c = d3.lab(hue(p.name));
c.l = luminance(d.sum);
return c;
}
function arcTween(b) {
var i = d3.interpolate(this._current, b);
this._current = i(0);
return function(t) {
return arc(i(t));
};
}
function updateArc(d) {
return {depth: d.depth, x: d.x, dx: d.dx};
}
d3.select(self.frameElement).style("height", margin.top + margin.bottom + "px");
</script>
The problem I have is that it is only showing the right half of the Partition.
This my component code of vue js
<template>
<div class="grapha">
<div id="chart2"></div>
</div>
</template>
<script>
// var apiURL = 'https://jsonplaceholder.typicode.com/users';
var apiURL = 'http://localhost:3000/db';
export default {
name: 'grapha',
data () {
return {
users:[]
}
},
methods: {
fetchData: function () {
var self = this;
$.get( apiURL, function( data ) {
self.users = data;
});
}
},
created: function (){
this.fetchData();
}
}
</script>
Here is my d3 combo chart code , here is a variable named Data takes values and shows it on graph.
Now, I want to get data from self.users (vue js component) to pass it on data variable ( external function ). Could you suggest me what would be the possible way to do that ?
function getTextWidth(text, fontSize, fontName) {
c = document.createElement("canvas");
ctx = c.getContext("2d");
ctx.font = fontSize + ' ' + fontName;
return ctx.measureText(text).width;
}
function DataSegregator(array, on) {
var SegData;
OrdinalPositionHolder = {
valueOf: function () {
thisObject = this;
keys = Object.keys(thisObject);
keys.splice(keys.indexOf("valueOf"), 1);
keys.splice(keys.indexOf("keys"), 1);
return keys.length == 0 ? -1 : d3.max(keys, function (d) { return thisObject[d] })
}
, keys: function () {
keys = Object.keys(thisObject);
keys.splice(keys.indexOf("valueOf"), 1);
keys.splice(keys.indexOf("keys"), 1);
return keys;
}
}
array[0].map(function (d) { return d[on] }).forEach(function (b) {
value = OrdinalPositionHolder.valueOf();
OrdinalPositionHolder[b] = OrdinalPositionHolder > -1 ? ++value : 0;
})
SegData = OrdinalPositionHolder.keys().map(function () {
return [];
});
array.forEach(function (d) {
d.forEach(function (b) {
SegData[OrdinalPositionHolder[b[on]]].push(b);
})
});
return SegData;
}
Data = self.users.comboChart;
var margin = { top: 20, right: 30, bottom: 60, left: 40 },
width = 800 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var textWidthHolder = 0;
/// Adding Date in LineCategory
Data.forEach(function (d) {
d.LineCategory.forEach(function (b) {
b.Date = d.Date;
})
});
var Categories = new Array();
// Extension method declaration
// Categories.pro;
var Data;
var ageNames;
var x0 = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var XLine = d3.scale.ordinal()
.rangeRoundPoints([0, width], .1);
var x1 = d3.scale.ordinal();
var y = d3.scale.linear()
.range([height, 0]);
var YLine = d3.scale.linear().range([height, 0])
.domain([0, d3.max(Data, function (d) { return d3.max(d.LineCategory, function (b) { return b.Value }) })]);
var color = d3.scale.ordinal()
.range(["#6aae6a", "#639ce4", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var line = d3.svg.line().x(function (d) {
return x0(d.Date) + x0.rangeBand() / 2;
}).y(function (d) { return YLine(d.Value) });
var xAxis = d3.svg.axis()
.scale(x0)
.orient("bottom");
// var yAxis = d3.svg.axis()
// .scale(y)
// .orient("left")
// .tickFormat(d3.format(".2s"));
// var YLeftAxis = d3.svg.axis().scale(YLine).orient("right").tickFormat(d3.format(".2s"));
var svg = d3.select("#chart2").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
// Bar Data categories
Data.forEach(function (d) {
d.Categories.forEach(function (b) {
if (Categories.findIndex(function (c) { return c.Name===b.Name}) == -1) {
b.Type = "bar";
// console.log(JSON.stringify(b))
Categories.push(b)
}
})
});
// Line Data categories
Data.forEach(function (d) {
d.LineCategory.forEach(function (b) {
if (Categories.findIndex(function (c) { return c.Name === b.Name }) == -1) {
b.Type = "line";
// console.log(JSON.stringify(b))
Categories.push(b)
}
})
});
// Processing Line data
lineData = DataSegregator(Data.map(function (d) { return d.LineCategory }), "Name");
// Line Coloring
LineColor = d3.scale.ordinal();
LineColor.domain(Categories.filter(function (d) { return d.Type == "line" }).map(function (d) { return d.Name }));
LineColor.range(["#333471", "#386a07", "#7f8ed4", "#671919", "#0b172b"])
x0.domain(Data.map(function (d) { return d.Date; }));
XLine.domain(Data.map(function (d) { return d.Date; }));
x1.domain(Categories.filter(function (d) { return d.Type == "bar" }).map(function (d) { return d.Name})).rangeRoundBands([0, x0.rangeBand()]);
y.domain([0, d3.max(Data, function (d) { return d3.max(d.Categories, function (d) { return d.Value; }); })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
var state = svg.selectAll(".state")
.data(Data)
.enter().append("g")
.attr("class", "state")
.attr("transform", function (d) { return "translate(" + x0(d.Date) + ",0)"; });
state.selectAll("rect")
.data(function (d) { return d.Categories; })
.enter().append("rect")
.attr("width", x1.rangeBand())
.attr("x", function (d) { return x1(d.Name); })
.attr("y", function (d) { return y(d.Value); })
//.attr("height", function (d) { return height - y(d.Value); })
.style("fill", function (d) { return color(d.Name); })
.transition().delay(500).attrTween("height", function (d) {
var i = d3.interpolate(0, height - y(d.Value));
return function (t)
{
return i(t);
}
});
// drawaing lines
svg.selectAll(".lines").data(lineData).enter().append("g").attr("class", "line")
.each(function (d) {
Name=d[0].Name
d3.select(this).append("path").attr("d", function (b) { return line(b) }).style({ "stroke-width": "3px", "fill": "none" }).style("stroke", LineColor(Name)).transition().duration(1500);
})
// Legends
var LegendHolder = svg.append("g").attr("class", "legendHolder");
var legend = LegendHolder.selectAll(".legend")
.data(Categories.map(function (d) { return {"Name":d.Name,"Type":d.Type}}))
.enter().append("g")
.attr("class", "legend")
.attr("transform", function (d, i) { return "translate(0," +( height+ margin.bottom/2 )+ ")"; })
.each(function (d,i) {
// Legend Symbols
d3.select(this).append("rect")
.attr("width", function () { return 18 })
.attr("x", function (b) {
left = (i+1) * 15 + i * 18 + i * 5 + textWidthHolder;
return left;
})
.attr("y", function (b) { return b.Type == 'bar'?0:7})
.attr("height", function (b) { return b.Type== 'bar'? 18:5 })
.style("fill", function (b) { return b.Type == 'bar' ? color(d.Name) : LineColor(d.Name) });
// Legend Text
d3.select(this).append("text")
.attr("x", function (b) {
left = (i+1) * 15 + (i+1) * 18 + (i + 1) * 5 + textWidthHolder;
return left;
})
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "start")
.text(d.Name);
textWidthHolder += getTextWidth(d.Name, "10px", "calibri");
});
// Legend Placing (center)
d3.select(".legendHolder").attr("transform", function (d) {
thisWidth = d3.select(this).node().getBBox().width;
return "translate(" + ((width) / 2 - thisWidth / 2) + ",0)";
})
// round the rectangle corners
svg.selectAll('rect').attr('rx', 5).attr('ry', 5);
You can achieve by using Using Javascript's custom event feature
We need to register an event, globally with document as follows
Registering Event
document.addEventListener("updateUser", function(e) {
console.info("Event is: ", e);
console.info("Custom data is: ", e.detail);
// Place your logic to operate with new data
})
The above snippet needs to be placed in your d3 script.
Emitting the custom event
var myEvent = new CustomEvent("updateUser", {
detail: data // Your data from vuejs part
});
// Trigger it!
document.dispatchEvent(myEvent);
I'm developing a legend toggling d3.js pie chart application using this jsfiddle as my latest version http://jsfiddle.net/Qh9X5/3328/ .
I am aiming to get a streamlined working example where the legend can toggle the slices, trying to deactivate all slices - resorts in a reset which reactivates all the slices. Splitting up presentation and application layer logic.
Tweening needs improvement too - as the slices pop into existence then re-tween smoothly.
How do I improve/fix the various bugs in this code base?
onLegendClick: function(dt, i){
//_toggle rectangle in legend
var completeData = jQuery.extend(true, [], methods.currentDataSet);
newDataSet = completeData;
if(methods.manipulatedData){
newDataSet = methods.manipulatedData;
}
d3.selectAll('rect')
.data([dt], function(d) {
return d.data.label;
})
.style("fill-opacity", function(d, j) {
var isActive = Math.abs(1-d3.select(this).style("fill-opacity"));
if(isActive){
newDataSet[j].total = completeData[j].total;
}else{
newDataSet[j].total = 0;
}
return isActive;
});
//animate slices
methods.animateSlices(newDataSet);
//stash manipulated data
methods.manipulatedData = newDataSet;
}
Here is the entire js code - I've used the tidyup. I wasn't sure about using the shortcuts as I'm not sure the values will be correct. The latest fiddle - http://jsfiddle.net/Qh9X5/3340/
$(document).ready(function () {
var pieChart = {
el: "",
init: function (el, options) {
var clone = jQuery.extend(true, {}, options["data"]);
pieChart.el = el;
pieChart.setup(clone, options["width"], options["height"], options["r"], options["ir"]);
},
getArc: function (radius, innerradius) {
var arc = d3.svg.arc()
.innerRadius(innerradius)
.outerRadius(radius);
return arc;
},
setup: function (dataset, w, h, r, ir) {
var padding = 80;
this.width = w;
this.height = h;
this.radius = r
this.innerradius = ir;
this.color = d3.scale.category20();
this.pie = d3.layout.pie()
.sort(null)
.value(function (d) {
return d.total;
});
this.arc = this.getArc(this.radius, this.innerradius);
this.svg = d3.select(pieChart.el["selector"]).append("svg")
.attr("width", this.width + padding)
.attr("height", this.height + padding);
this.holder = this.svg.append("g")
.attr("transform", "translate(" + ((this.width / 2) + (padding / 2)) + "," + ((this.height / 2) + (padding / 2)) + ")");
this.piec = this.holder.append("g")
.attr("class", "piechart");
this.segments = this.holder.append("g")
.attr("class", "segments");
this.labels = this.holder.append("g")
.attr("class", "labels");
this.pointers = this.holder.append("g")
.attr("class", "pointers");
this.legend = this.svg.append("g")
.attr("class", "legend")
.attr("transform", "translate(" + -(this.width / 4) + "," + this.height + ")");
},
oldPieData: "",
pieTween: function (r, ir, d, i) {
var that = this;
var theOldDataInPie = pieChart.oldPieData;
// Interpolate the arcs in data space
var s0;
var e0;
if (theOldDataInPie[i]) {
s0 = theOldDataInPie[i].startAngle;
e0 = theOldDataInPie[i].endAngle;
} else if (!(theOldDataInPie[i]) && theOldDataInPie[i - 1]) {
s0 = theOldDataInPie[i - 1].endAngle;
e0 = theOldDataInPie[i - 1].endAngle;
} else if (!(theOldDataInPie[i - 1]) && theOldDataInPie.length > 0) {
s0 = theOldDataInPie[theOldDataInPie.length - 1].endAngle;
e0 = theOldDataInPie[theOldDataInPie.length - 1].endAngle;
} else {
s0 = 0;
e0 = 0;
}
var i = d3.interpolate({
startAngle: s0,
endAngle: e0
}, {
startAngle: d.startAngle,
endAngle: d.endAngle
});
return function (t) {
var b = i(t);
return pieChart.getArc(r, ir)(b);
};
},
removePieTween: function (r, ir, d, i) {
var that = this;
s0 = 2 * Math.PI;
e0 = 2 * Math.PI;
var i = d3.interpolate({
startAngle: d.startAngle,
endAngle: d.endAngle
}, {
startAngle: s0,
endAngle: e0
});
return function (t) {
var b = i(t);
return pieChart.getArc(r, ir)(b);
};
},
animateSlices: function (dataSet) {
var r = $(pieChart.el["selector"]).data("r");
var ir = $(pieChart.el["selector"]).data("ir");
this.piedata = pieChart.pie(dataSet);
//__slices
this.path = pieChart.segments.selectAll("path.pie")
.data(this.piedata, function (d) {
return d.data.label
});
this.path.enter().append("path")
.attr("class", "pie")
.attr("fill", function (d, i) {
return pieChart.color(i);
})
.attr("stroke", "#ffffff")
.transition()
.duration(300)
.attrTween("d", function (d, i) {
return pieChart.pieTween(r, ir, d, i);
});
this.path.transition()
.duration(300)
.attrTween("d", function (d, i) {
return pieChart.pieTween(r, ir, d, i);
});
this.path.exit()
.transition()
.duration(300)
.attrTween("d", function (d, i) {
return pieChart.removePieTween(r, ir, d, i);
})
.remove();
//__slices
//__labels
var labels = pieChart.labels.selectAll("text")
.data(this.piedata, function (d) {
return d.data.label
});
labels.enter()
.append("text")
.attr("text-anchor", "middle")
labels.attr("x", function (d) {
var a = d.startAngle + (d.endAngle - d.startAngle) / 2 - Math.PI / 2;
d.cx = Math.cos(a) * (ir + ((r - ir) / 2));
return d.x = Math.cos(a) * (r + 20);
})
.attr("y", function (d) {
var a = d.startAngle + (d.endAngle - d.startAngle) / 2 - Math.PI / 2;
d.cy = Math.sin(a) * (ir + ((r - ir) / 2));
return d.y = Math.sin(a) * (r + 20);
})
.attr("opacity", function (d) {
var opacityLevel = 1;
if (d.value == 0) {
opacityLevel = 0;
}
return opacityLevel;
})
.text(function (d) {
return d.data.label;
})
.each(function (d) {
var bbox = this.getBBox();
d.sx = d.x - bbox.width / 2 - 2;
d.ox = d.x + bbox.width / 2 + 2;
d.sy = d.oy = d.y + 5;
})
.transition()
.duration(300)
labels.transition()
.duration(300)
labels.exit().remove();
//__labels
//__pointers
pieChart.pointers.append("defs").append("marker")
.attr("id", "circ")
.attr("markerWidth", 6)
.attr("markerHeight", 6)
.attr("refX", 3)
.attr("refY", 3)
.append("circle")
.attr("cx", 3)
.attr("cy", 3)
.attr("r", 3);
var pointers = pieChart.pointers.selectAll("path.pointer")
.data(this.piedata, function (d) {
return d.data.label
});
pointers.enter()
.append("path")
.attr("class", "pointer")
.style("fill", "none")
.style("stroke", "black")
.attr("marker-end", "url(#circ)");
pointers.attr("d", function (d) {
if (d.cx > d.ox) {
return "M" + d.sx + "," + d.sy + "L" + d.ox + "," + d.oy + " " + d.cx + "," + d.cy;
} else {
return "M" + d.ox + "," + d.oy + "L" + d.sx + "," + d.sy + " " + d.cx + "," + d.cy;
}
})
.attr("opacity", function (d) {
var opacityLevel = 1;
if (d.value == 0) {
opacityLevel = 0;
}
return opacityLevel;
})
.transition()
.duration(300)
pointers.transition()
.duration(300)
pointers.exit().remove();
},
onToggle: function (sliceData, index) {
//_toggle rectangle in legend
//_toggle slice
var completeData = jQuery.extend(true, [], pieChart.currentDataSet);
var dataLength = completeData.length;
var newDataSet = completeData;
if (pieChart.manipulatedData) {
newDataSet = pieChart.manipulatedData;
}
d3.selectAll('rect')
.data([sliceData], function (d) {
return d.data.label;
})
.style("fill-opacity", function (d) {
var isActive = Math.abs(1 - d3.select(this).style("fill-opacity"));
if (isActive) {
newDataSet[index].total = completeData[index].total;
newDataSet[index].value = completeData[index].value;
} else {
newDataSet[index].total = 0;
newDataSet[index].value = 0;
}
return isActive;
});
//if all elements are to be not shown - reset to show all slices again.
//animate slices
pieChart.animateSlices(newDataSet);
//stash manipulated data
pieChart.manipulatedData = newDataSet;
},
update: function (el, dataSet) {
var that = this;
pieChart.el = el;
pieChart.svg = d3.select(pieChart.el["selector"] + " .piechart");
pieChart.segments = d3.select(pieChart.el["selector"] + " .segments");
pieChart.labels = d3.select(pieChart.el["selector"] + " .labels");
pieChart.pointers = d3.select(pieChart.el["selector"] + " .pointers");
pieChart.legend = d3.select(pieChart.el["selector"] + " .legend");
dataSet.forEach(function (d) {
d.total = +d.value;
});
pieChart.currentDataSet = dataSet;
pieChart.animateSlices(dataSet);
//__legends
var w = 200;
// add legend
var legend = pieChart.legend; //.append("g")
var legendRects = legend.selectAll('rect')
.data(this.piedata, function (d) {
return d.data.label
});
legendRects.enter()
.append("rect")
.attr("x", w - 65)
.attr("y", function (d, i) {
return i * 20;
})
.attr("width", 10)
.attr("height", 10)
.style("fill", function (d, i) {
return pieChart.color(i);
})
.style("stroke", function (d, i) {
return pieChart.color(i);
})
.on('click', function(d, i){
pieChart.onToggle(d, i);
})
.transition()
.duration(300)
legendRects.style("fill", function (d, i) {
return pieChart.color(i);
})
.style("stroke", function (d, i) {
return pieChart.color(i);
})
.transition()
.duration(300)
legendRects.exit().remove();
var legendText = legend.selectAll('text.label')
.data(this.piedata, function (d) {
return d.data.label
});
legendText.enter()
.append("text")
.attr("class", "label")
.attr("x", w - 52)
.attr("y", function (d, i) {
return i * 20 + 9;
})
.text(function (d) {
return d.data.label;
})
.transition()
.duration(300)
legendText.text(function (d) {
return d.data.label;
})
.transition()
.duration(300)
legendText.exit().remove();
var legendTextVals = legend.selectAll('text.vals')
.data(this.piedata, function (d) {
return d.data.label
});
legendTextVals.enter()
.append("text")
.attr("class", "vals")
.attr("x", w + 20)
.attr("y", function (d, i) {
return i * 20 + 9;
})
.text(function (d) {
return d.data.value;
})
.transition()
.duration(300)
legendTextVals.text(function (d) {
return d.data.value;
})
.transition()
.duration(300)
legendTextVals.exit().remove();
//__pointers
this.oldPieData = this.piedata;
}
};
var dataCharts = [{
"data": [{
"segments": [{
"label": "apple",
"value": 53245
}, {
"label": "cherry",
"value": 145
}, {
"label": "pear",
"value": 2245
}, {
"label": "bananana",
"value": 15325
}]
}]
}, {
"data": [{
"segments": [{
"label": "milk",
"value": 122
}, {
"label": "cheese",
"value": 44
}, {
"label": "grapes",
"value": 533
}]
}]
}, {
"data": [{
"segments": [{
"label": "pineapple",
"value": 1532
}, {
"label": "orange",
"value": 1435
}, {
"label": "grapes",
"value": 22
}]
}]
}, {
"data": [{
"segments": [{
"label": "lemons",
"value": 133
}, {
"label": "mango",
"value": 435
}, {
"label": "melon",
"value": 2122
}]
}]
}];
var clone = jQuery.extend(true, {}, dataCharts);
//__invoke concentric
$('[data-role="piechart"]').each(function (index) {
var selector = "piechart" + index;
$(this).attr("id", selector);
var options = {
data: clone[0].data,
width: $(this).data("width"),
height: $(this).data("height"),
r: $(this).data("r"),
ir: $(this).data("ir")
}
pieChart.init($("#" + selector), options);
pieChart.update($("#" + selector), clone[0].data[0].segments);
});
$(".testers a").on("click", function (e) {
e.preventDefault();
var clone = jQuery.extend(true, {}, dataCharts);
var min = 0;
var max = 3;
//__invoke pie chart
$('[data-role="piechart"]').each(function (index) {
pos = Math.floor(Math.random() * (max - min + 1)) + min;
pieChart.update($("#" + $(this).attr("id")), clone[pos].data[0].segments);
});
});
});
I have my data formatted like flare.json that's used in this example :
I am just wondering what function the d3 zoomable chart uses to get the data in this format
In flare.json it's like this
{
name: "stuff",
children: [
....
]
}
and it's converted to this in the example. Which line does this?
{
children: Array[17]
depth: 1
dx: 0.6028744305756647
dy: 0.25
name: "A name would appear here"
parent: Object
value: 39850000.06
x: 0
y: 0.25
}
Chart
var total_revenue = json.total_revenue;
json = json.chart_data;
var width = 840,
height = width,
radius = width / 2,
x = d3.scale.linear().range([0, 2 * Math.PI]),
y = d3.scale.pow().exponent(1.3).domain([0, 1]).range([0, radius]),
padding = 5,
duration = 1000;
var div = d3.select("#chart_render");
div.select("img").remove();
var vis = div.append("svg")
.attr("width", width + padding * 2)
.attr("height", height + padding * 2)
.append("g")
.attr("transform", "translate(" + [radius + padding, radius + padding] + ")");
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, d.y ? y(d.y) : d.y); })
.outerRadius(function(d) { return Math.max(0, y(d.y + d.dy)); });
console.log(json);
var nodes = partition.nodes({children: json});
var path = vis.selectAll("path").data(nodes);
path.enter().append("path")
.attr("id", function(d, i) { return "path-" + i; })
.attr("d", arc)
.attr("fill-rule", "evenodd")
.style("fill", colour)
.on("click", click);
var text = vis.selectAll("text").data(nodes);
var textEnter = text.enter().append("text")
.style("fill-opacity", function(d) {
var relative_percent = 0;
var relative_total = 0;
//console.log(d);
if (d.depth != 0) {
for(var i = 0; i < d.parent.children.length; i++) {
relative_total += d.parent.children[i].value;
}
//console.log(relative_total);
relative_percent = d.value/total_revenue*100;
if (relative_percent > 1) {
return '1';
} else {
return '0';
}
}
})
.style("fill", function(d) {
return "#fff";
})
.attr("text-anchor", function(d) {
return x(d.x + d.dx / 2) > Math.PI ? "end" : "start";
})
.attr("dy", ".2em")
.attr("transform", function(d) {
var multiline = (d.name || "").split(" ").length > 1,
angle = x(d.x + d.dx / 2) * 180 / Math.PI - 90,
rotate = angle + (multiline ? -.5 : 0);
return "rotate(" + rotate + ")translate(" + (y(d.y) + padding) + ")rotate(" + (angle > 90 ? -180 : 0) + ")";
})
.on("click", click);
textEnter.append("tspan")
.attr("x", 0)
.text(function(d) { return d.depth ? d.name.split(" ")[0] : ""; });
textEnter.append("tspan")
.attr("x", 0)
.attr("dy", "1em")
.text(function(d) { return d.depth ? d.name.split(" ")[1] || "" : ""; });
function click(d) {
path.transition()
.duration(duration)
.attrTween("d", arcTween(d));
// Somewhat of a hack as we rely on arcTween updating the scales.
text.style("visibility", function(e) {
return isParentOf(d, e) && e.value > 1500000 ? null : d3.select(this).style("visibility");
})
.transition()
.duration(duration)
.attrTween("text-anchor", function(d) {
return function() {
return x(d.x + d.dx / 2) > Math.PI ? "end" : "start";
};
})
.attrTween("transform", function(d) {
var multiline = (d.name || "").split(" ").length > 1;
return function() {
var angle = x(d.x + d.dx / 2) * 180 / Math.PI - 90,
rotate = angle + (multiline ? -.5 : 0);
return "rotate(" + rotate + ")translate(" + (y(d.y) + padding) + ")rotate(" + (angle > 90 ? -180 : 0) + ")";
};
})
.style("fill-opacity", function(e) { return isParentOf(d, e) ? 1 : 1e-6; })
.each("end", function(e) {
d3.select(this).style("visibility", function (d) {
// var relative_total = 0;
// var relative_percent = 0;
// for(var i = 0; i < d.parent.children.length; i++) {
// relative_total += d.parent.children[i].value;
// }
// console.log(relative_total);
// relative_percent = d.value/relative_total*100;
// console.log(relative_percent);
return isParentOf(d, e) && e.value > 1500000 ? null : "hidden";
})
});
}
function isParentOf(p, c) {
if (p === c) return true;
if (p.children) {
return p.children.some(function(d) {
return isParentOf(d, c);
});
}
return false;
}
function colour(d) {
if (d.depth == 0) {
return "rgb(250, 250, 250)";
} else if (d.depth == 1) {
return 'rgb(86, 135, 209)';
} else if (d.depth == 2) {
return 'rgb(222, 120, 59)';
} else if (d.depth == 3) {
return 'rgb(106, 185, 117)';
}
// if (d.children) {
// // There is a maximum of two children!
// var colours = d.children.map(colour),
// a = d3.hsl(colours[0]),
// b = d3.hsl(colours[1]);
// // L*a*b* might be better here...
// return d3.hsl((a.h + b.h) / 2, a.s * 1.2, a.l / 1.2);
// }
// return d.colour || "#fff";
}
// Interpolate the scales!
function arcTween(d) {
var my = maxY(d),
xd = d3.interpolate(x.domain(), [d.x, d.x + d.dx]),
yd = d3.interpolate(y.domain(), [d.y, my]),
yr = d3.interpolate(y.range(), [d.y ? 20 : 0, radius]);
return function(d) {
return function(t) { x.domain(xd(t)); y.domain(yd(t)).range(yr(t)); return arc(d); };
};
}
function maxY(d) {
return d.children ? Math.max.apply(Math, d.children.map(maxY)) : d.y + d.dy;
}
// http://www.w3.org/WAI/ER/WD-AERT/#color-contrast
function brightness(rgb) {
return rgb.r * .299 + rgb.g * .587 + rgb.b * .114;
}
This line:
var nodes = partition.nodes({children: json});
Explanation of code that sets up sunburst diagram
In D3 parlance, sunburst diagram is based on D3 "partition layout". Actually, D3 "partition layout" is in a way more general term, since it can be used for displaying not only sunburst diagram, but also others based on the idea of "partitioning" parents (hence the name "partition"). This is also a useful example for noticing difference between "layout" and "diagram" (in D3 mindset), but this is another story.
Following 2 lines are first steps in initializing partition layout:
var partition = d3.layout.partition()
.value(function(d) { return d.size });
This line does all calculations:
var nodes = partition.nodes({children: json});
Then variable nodes can be used for defining actual visual appearance of svg elements (arcs and labels):
var path = vis.selectAll("path").data(nodes);
and
var text = vis.selectAll("text").data(nodes);
These two lines represent something which is called "data binding" often. They enable programmers to use data to drive visual elements, like in the following line:
.text(function(d) { return d.depth ? d.name.split(" ")[0] : ""; });
Here, d.name originates from data, and d.depth is added by partition layout. They are both actually part of nodes.
I tried to explain in simple terms, but probably there are some confusing points to you - don't worry, it will be crystal clear to you soon, if you read the right docs and tutorials. ;)