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d3 x scale and labels at the bottom

I'm trying to build a vertical drill down bar graph. I'm referring to this link https://observablehq.com/#d3/hierarchical-bar-chart. The graph in the link is a horizontal bar chart but I'm building a vertical one. I have managed to build the graph but there is an issue with the xAxis positioning. I'm trying to position it down like how we do in the normal bar chart but it seems to be not working.My code and image are given below.
As you can see from the image the xAxis and the labels are on the top. I want it in the bottom. I have used d3.axisBottom but it doesnt seem to be working.
code
var margin = { top: 30, right: 50, bottom: 30, left: 50 },
width = 400 - margin.left - margin.right,
height = 250 - margin.top - margin.bottom;
var y:any = d3.scaleLinear()
.range([height, 0]);
var x = d3.scaleBand()
.range([0, width])
// .domain(flare.map(function(d) { return d.name; }))
// .padding(0.2);
var barWidth = 25;
var color:any = d3.scaleOrdinal()
.range(["steelblue"]);
var duration = 750,
delay = 25;
var yAxis:any = d3.axisLeft(y);
var xAxis:any = d3.axisBottom(x);
var svg: any = d3.select("#Area")
.append("svg")
.attr('preserveAspectRatio', 'xMinYMin meet')
.attr(
'viewBox',
'0 0 ' +
(width + margin.left + margin.right) +
' ' +
(height + margin.top + margin.bottom)
)
.append("g")
.attr("transform",
"translate(" + margin.left + "," + margin.top + ")")
svg.append("rect")
.attr("class", "background")
.attr("width", width + margin.left + margin.right)
.attr("height", height)
.on("click", up);
svg.append("g")
.attr("class", "y axis");
svg.append("g")
.attr("class", "x axis")
.append("line")
.attr("x1", "100%")
.call(d3.axisBottom(x));
var root = d3.hierarchy(flare)
.sum(d => d['size']);
y.domain([0, root.value]).nice();
down(root, 0);
function down(d, i) {
if (!d.children) return;
var end = duration + d.children.length * delay;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter")
.attr("class", "exit");
// Entering nodes immediately obscure the clicked-on bar, so hide it.
exit.selectAll("rect").filter(p => p === d)
.style("fill-opacity", 1e-6);
// Enter the new bars for the clicked-on data.
// Per above, entering bars are immediately visible.
var enter = bar(d)
// .attr("transform", stack(i))
.style("opacity", 1);
// Have the text fade-in, even though the bars are visible.
// Color the bars as parents; they will fade to children if appropriate.
enter.select("text").style("fill-opacity", 1e-6);
enter.select("rect").style("fill", color(true));
// Update the y-scale domain.
y.domain([0, d3.max(d.children, d => d['value'])]).nice();
// Update the y-axis.
svg.selectAll(".y.axis").transition()
.duration(duration)
.call(yAxis);
// Update the x-axis.
svg.selectAll(".x.axis").transition()
.duration(duration)
.call(xAxis);
// Transition entering bars to their new position.
var enterTransition = enter.transition()
.duration(duration)
.delay((d, i) => i * delay)
.attr("transform", (d, i) => `translate(${barWidth * i * 1.2 + 5}, 0)`);
// Transition entering text.
enterTransition.select("text")
.style("fill-opacity", 1);
// Transition entering rects to the new y-scale.
enterTransition.select("rect")
.attr("height", d => height - y(d['value']))
.attr("width", barWidth)
.attr("y", d => y(d['value']))
.attr("x", d => x(d['data'].name))
.attr("width", barWidth)
.style("fill", d => color(!!d['children']));
// Transition exiting bars to fade out.
var exitTransition = exit.transition()
.duration(duration)
.style("opacity", 1e-6)
.remove();
// Transition exiting bars to the new y-scale.
exitTransition.selectAll("rect")
.attr("height", d => height - y(d['value']))
.attr("width", barWidth)
.attr("y", d => y(d['value']))
.attr("x", d => x(d['data'].name))
.attr("width", barWidth)
// Rebind the current node to the background.
svg.select(".background")
.datum(d)
.transition()
.duration(end);
d.index = i;
}
function up(d) {
if (!d.parent) return;
var end = duration + d.children.length * delay;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter")
.attr("class", "exit");
// Enter the new bars for the clicked-on data's parent.
var enter = bar(d.parent)
.attr("transform", (d, i) => `translate(${barWidth * i * 1.2 + 5}, 0)`)
.style("opacity", 1e-6);
// Color the bars as appropriate.
// Exiting nodes will obscure the parent bar, so hide it.
enter.select("rect")
.style("fill", d => color(!!d['children']))
.filter(p => p === d)
.style("fill-opacity", 1e-6);
// Update the y-scale domain.
y.domain([0, d3.max(d.parent.children, d => d['value'])]).nice();
// Update the y-axis.
svg.selectAll(".y.axis").transition()
.duration(duration)
.call(yAxis);
// Transition entering bars to fade in over the full duration.
var enterTransition = enter.transition()
.duration(end)
.style("opacity", 1);
// Transition entering rects to the new y-scale.
// When the entering parent rect is done, make it visible!
enterTransition.select("rect")
.attr("height", d => height - y(d['value']))
.attr("width", barWidth)
.attr("y", d => y(d['value']))
.attr("x", d => x(d['data'].name))
.attr("width", barWidth)
.on("end", function (p) { if (p === d) d3.select(this).style("fill-opacity", null); });
// Transition exiting bars to the parent's position.
var exitTransition = exit.selectAll("g").transition()
.duration(duration)
.delay((d, i) => i * delay)
.attr("transform", stack(d.index));
// Transition exiting text to fade out.
exitTransition.select("text")
.style("fill-opacity", 1e-6);
// Transition exiting rects to the new scale and fade to parent color.
exitTransition.select("rect")
.attr("height", d => height - y(d['value']))
.attr("width", barWidth)
.attr("y", d => y(d['value']))
.attr("x", d => x(d['data'].name))
.style("fill", color(true));
// Remove exiting nodes when the last child has finished transitioning.
exit.transition()
.duration(end)
.remove();
// Rebind the current parent to the background.
svg.select(".background")
.datum(d.parent)
.transition()
.duration(end);
}
// Creates a set of bars for the given data node, at the specified index.
function bar(d) {
var bar = svg.insert("g", ".x.axis")
.attr("class", "enter")
.attr("transform", "translate(0,0)")
.selectAll("g")
.data(d.children)
.enter().append("g")
.style("cursor", d => !d['children'] ? null : "pointer")
.on("click", down);
bar.append("rect")
.attr("height", d => height - y(d['value']))
.attr("width", barWidth)
.attr("y", d => y(d['value']))
.attr("x", d => x(d['data'].name))
bar.append("text")
.attr("x", -15)
.attr("y", -barWidth / 2)
.attr("dx", ".35em")
.attr("transform", "rotate(90)")
.style("text-anchor", "end")
.text(d => d['data'].name);
return bar;
}
// A stateful closure for stacking bars horizontally.
function stack(i) {
var y0 = 0;
return function (d) {
var ty = `translate(${barWidth * i * 1.2 + 5}, ${y0})`;
y0 += y(d.value);
return ty;
};
}

axisBottom just dictates the direction of the ticks and labels, you still need to move it in place.
Change this:
svg.append("g")
.attr("class", "x axis")
.append("line")
.attr("x1", "100%")
.call(d3.axisBottom(x));
To:
svg.append('g')
.attr('class','x axis')
.attr('transform','translate(0,' + height + ')') // Move the axis to the bottom
.call(d3.axisBottom(x))
.append("line")
.attr("x1", "100%")

Rotate Hierarchical Bar chart

I am using hierarchical D3.JS Bar chart.
here is the link
Click here to see the chart
I want to rotate this chart as vertical position.
The following is code is used to rotate the chart as vertical position
//svg Rotate
svg.attr("transform", function (d) {
return "rotate(-90)"
});
But chart is going towards top of the browser.
Click here to see the chart after that code has changed
when i add the following code.
svg.attr("transform", function (d) {
return "rotate(-90deg)"
});
The chart going inside to the browser the attachment
see the chart after i add -90 deg
Can anyone tell me how to show the display as per my requirement.
Thanks
Vinoth,

As #Terry said in his comment this is an X-Y problem. You are asking "how do I rotate the chart?"; when you should be asking "how do I redraw the chart to be vertical?". Well, here it is all refactored:
<!DOCTYPE html>
<meta charset="utf-8">
<style>
text {
font: 10px sans-serif;
}
rect.background {
fill: white;
}
.axis {
shape-rendering: crispEdges;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var margin = {top: 10, right: 120, bottom: 120, left: 120},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var y = d3.scale.linear()
.range([height, 0]);
var barHeight = 20;
var color = d3.scale.ordinal()
.range(["steelblue", "#ccc"]);
var duration = 750,
delay = 25;
var partition = d3.layout.partition()
.value(function(d) { return d.size; });
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
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 + ")");
svg.append("rect")
.attr("class", "background")
.attr("width", width)
.attr("height", height)
.on("click", up);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0, " + height + ")")
.append("line")
.attr("x1", "100%");
svg.append("g")
.attr("class", "y axis");
d3.json("https://jsonblob.com/api/f577d19c-0f2b-11e7-a0ba-09040711ce47", function(error, root) {
if (error) throw error;
partition.nodes(root);
y.domain([0, root.value]).nice();
down(root, 0);
});
function down(d, i) {
if (!d.children || this.__transition__) return;
var end = duration + d.children.length * delay;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter")
.attr("class", "exit");
// Entering nodes immediately obscure the clicked-on bar, so hide it.
exit.selectAll("rect").filter(function(p) { return p === d; })
.style("fill-opacity", 1e-6);
// Enter the new bars for the clicked-on data.
// Per above, entering bars are immediately visible.
var enter = bar(d)
.attr("transform", stack(i))
.style("opacity", 1);
// Have the text fade-in, even though the bars are visible.
// Color the bars as parents; they will fade to children if appropriate.
enter.select("text").style("fill-opacity", 1e-6);
enter.select("rect").style("fill", color(true));
// Update the x-scale domain.
y.domain([0, d3.max(d.children, function(d) { return d.value; })]).nice();
// Update the x-axis.
svg.selectAll(".y.axis").transition()
.duration(duration)
.call(yAxis);
// Transition entering bars to their new position.
var enterTransition = enter.transition()
.duration(duration)
.delay(function(d, i) { return i * delay; })
.attr("transform", function(d, i) { return "translate(" + barHeight * i * 2.5 + "," + 0 + ")"; });
// Transition entering text.
enterTransition.select("text")
.style("fill-opacity", 1);
// Transition entering rects to the new y-scale.
enterTransition.select("rect")
.attr("y", function(d) { return y(d.value); })
.attr("height", function(d) { return height - y(d.value); })
.style("fill", function(d) { return color(!!d.children); });
// Transition exiting bars to fade out.
var exitTransition = exit.transition()
.duration(duration)
.style("opacity", 1e-6)
.remove();
// Transition exiting bars to the new y-scale.
exitTransition.selectAll("rect")
.attr("height", function(d) { return height - y(d.value); });
// Rebind the current node to the background.
svg.select(".background")
.datum(d)
.transition()
.duration(end);
d.index = i;
}
function up(d) {
if (!d.parent || this.__transition__) return;
var end = duration + d.children.length * delay;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter")
.attr("class", "exit");
// Enter the new bars for the clicked-on data's parent.
var enter = bar(d.parent)
.attr("transform", function(d, i) { return "translate(" + barHeight * i * 2.5 + "," + 0 + ")"; })
.style("opacity", 1e-6);
// Color the bars as appropriate.
// Exiting nodes will obscure the parent bar, so hide it.
enter.select("rect")
.style("fill", function(d) { return color(!!d.children); })
.filter(function(p) { return p === d; })
.style("fill-opacity", 1e-6);
// Update the y-scale domain.
y.domain([0, d3.max(d.parent.children, function(d) { return d.value; })]).nice();
// Update the y-axis.
svg.selectAll(".y.axis").transition()
.duration(duration)
.call(yAxis);
// Transition entering bars to fade in over the full duration.
var enterTransition = enter.transition()
.duration(end)
.style("opacity", 1);
// Transition entering rects to the new y-scale.
// When the entering parent rect is done, make it visible!
enterTransition.select("rect")
.attr("height", function(d) { return height - y(d.value); })
.attr("y", function(d) { return y(d.value); })
.each("end", function(p) { if (p === d) d3.select(this).style("fill-opacity", null); });
// Transition exiting bars to the parent's position.
var exitTransition = exit.selectAll("g").transition()
.duration(duration)
.delay(function(d, i) { return i * delay; })
.attr("transform", stack(d.index));
// Transition exiting text to fade out.
exitTransition.select("text")
.style("fill-opacity", 1e-6);
// Transition exiting rects to the new scale and fade to parent color.
exitTransition.select("rect")
.attr("height", function(d) { return height - y(d.value); })
.attr("y", function(d) { return y(d.value); })
.style("fill", color(true));
// Remove exiting nodes when the last child has finished transitioning.
exit.transition()
.duration(end)
.remove();
// Rebind the current parent to the background.
svg.select(".background")
.datum(d.parent)
.transition()
.duration(end);
}
// Creates a set of bars for the given data node, at the specified index.
function bar(d) {
var bar = svg.insert("g", ".x.axis")
.attr("class", "enter")
.attr("transform", "translate(15,0)")
.selectAll("g")
.data(d.children)
.enter().append("g")
.style("cursor", function(d) { return !d.children ? null : "pointer"; })
.on("click", down);
bar.append("text")
.attr("x", barHeight / 2)
.attr("y", height + 10)
.attr("dy", ".35em")
.style("text-anchor", "start")
.text(function(d) { return d.name; })
.attr("transform", "rotate(45 " + (barHeight / 2) + " " + (height + 10) + ")")
bar.append("rect")
.attr("width", barHeight)
.attr("height", function(d) { return height - y(d.value); })
.attr("y", function(d) { return y(d.value); });
return bar;
}
// A stateful closure for stacking bars horizontally.
function stack(i) {
var y0 = 0;
return function(d) {
var tx = "translate(" + barHeight * i * 1.5 + "," + y0 + ")";
y0 += y(d.value);
return tx;
};
}
</script>

How to use quantile color scale in bar graph with drill-down?

I'm using the following script to generate a bar chart with drill down capability. (source: http://mbostock.github.io/d3/talk/20111116/bar-hierarchy.html).
What I am trying to do is - I want the bars to be different shades of a color depending on the data (pretty much what this question asks - D3.js: Changing the color of the bar depending on the value). Except, in my case... the graph is horizontal and not static so the answer may be different.
So Ideally, at the parent node and all sub nodes except the child node, it will display lets say different shades of blue based on the data, and once it reaches the end after drilling down, the remaining bars will be grey.
I've recently started using d3 and am kinda lost as to where to start. I tried
adding different colors to the color range z but that did not work.
Any help will be appreciated! Thanks.
NOTE: in my case, I am assuming.. that after a transition, either all nodes will lead to subnodes OR no node will lead to subnodes. Basically, at no point in the graph will there be bars, where some will drill down further while some won't. This assumption is based on the type of data I want to show with my graph.
<script>
var m = [80, 160, 0, 160], // top right bottom left
w = 1280 - m[1] - m[3], // width
h = 800 - m[0] - m[2], // height
x = d3.scale.linear().range([0, w]),
y = 25, // bar height
z = d3.scale.ordinal().range(["steelblue", "#aaa"]); // bar color
var hierarchy = d3.layout.partition()
.value(function(d) { return d.size; });
var xAxis = d3.svg.axis()
.scale(x)
.orient("top");
var svg = d3.select("body").append("svg:svg")
.attr("width", w + m[1] + m[3])
.attr("height", h + m[0] + m[2])
.append("svg:g")
.attr("transform", "translate(" + m[3] + "," + m[0] + ")");
svg.append("svg:rect")
.attr("class", "background")
.attr("width", w)
.attr("height", h)
.on("click", up);
svg.append("svg:g")
.attr("class", "x axis");
svg.append("svg:g")
.attr("class", "y axis")
.append("svg:line")
.attr("y1", "100%");
d3.json("flare.json", function(root) {
hierarchy.nodes(root);
x.domain([0, root.value]).nice();
down(root, 0);
});
function down(d, i) {
if (!d.children || this.__transition__) return;
var duration = d3.event && d3.event.altKey ? 7500 : 750,
delay = duration / d.children.length;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter").attr("class", "exit");
// Entering nodes immediately obscure the clicked-on bar, so hide it.
exit.selectAll("rect").filter(function(p) { return p === d; })
.style("fill-opacity", 1e-6);
// Enter the new bars for the clicked-on data.
// Per above, entering bars are immediately visible.
var enter = bar(d)
.attr("transform", stack(i))
.style("opacity", 1);
// Have the text fade-in, even though the bars are visible.
// Color the bars as parents; they will fade to children if appropriate.
enter.select("text").style("fill-opacity", 1e-6);
enter.select("rect").style("fill", z(true));
// Update the x-scale domain.
x.domain([0, d3.max(d.children, function(d) { return d.value; })]).nice();
// Update the x-axis.
svg.selectAll(".x.axis").transition()
.duration(duration)
.call(xAxis);
// Transition entering bars to their new position.
var enterTransition = enter.transition()
.duration(duration)
.delay(function(d, i) { return i * delay; })
.attr("transform", function(d, i) { return "translate(0," + y * i * 1.2 + ")"; });
// Transition entering text.
enterTransition.select("text").style("fill-opacity", 1);
// Transition entering rects to the new x-scale.
enterTransition.select("rect")
.attr("width", function(d) { return x(d.value); })
.style("fill", function(d) { return z(!!d.children); });
// Transition exiting bars to fade out.
var exitTransition = exit.transition()
.duration(duration)
.style("opacity", 1e-6)
.remove();
// Transition exiting bars to the new x-scale.
exitTransition.selectAll("rect").attr("width", function(d) { return x(d.value); });
// Rebind the current node to the background.
svg.select(".background").data([d]).transition().duration(duration * 2); d.index = i;
}
function up(d) {
if (!d.parent || this.__transition__) return;
var duration = d3.event && d3.event.altKey ? 7500 : 750,
delay = duration / d.children.length;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter").attr("class", "exit");
// Enter the new bars for the clicked-on data's parent.
var enter = bar(d.parent)
.attr("transform", function(d, i) { return "translate(0," + y * i * 1.2 + ")"; })
.style("opacity", 1e-6);
// Color the bars as appropriate.
// Exiting nodes will obscure the parent bar, so hide it.
enter.select("rect")
.style("fill", function(d) { return z(!!d.children); })
.filter(function(p) { return p === d; })
.style("fill-opacity", 1e-6);
// Update the x-scale domain.
x.domain([0, d3.max(d.parent.children, function(d) { return d.value; })]).nice();
// Update the x-axis.
svg.selectAll(".x.axis").transition()
.duration(duration * 2)
.call(xAxis);
// Transition entering bars to fade in over the full duration.
var enterTransition = enter.transition()
.duration(duration * 2)
.style("opacity", 1);
// Transition entering rects to the new x-scale.
// When the entering parent rect is done, make it visible!
enterTransition.select("rect")
.attr("width", function(d) { return x(d.value); })
.each("end", function(p) { if (p === d) d3.select(this).style("fill-opacity", null); });
// Transition exiting bars to the parent's position.
var exitTransition = exit.selectAll("g").transition()
.duration(duration)
.delay(function(d, i) { return i * delay; })
.attr("transform", stack(d.index));
// Transition exiting text to fade out.
exitTransition.select("text")
.style("fill-opacity", 1e-6);
// Transition exiting rects to the new scale and fade to parent color.
exitTransition.select("rect")
.attr("width", function(d) { return x(d.value); })
.style("fill", z(true));
// Remove exiting nodes when the last child has finished transitioning.
exit.transition().duration(duration * 2).remove();
// Rebind the current parent to the background.
svg.select(".background").data([d.parent]).transition().duration(duration * 2);
}
// Creates a set of bars for the given data node, at the specified index.
function bar(d) {
var bar = svg.insert("svg:g", ".y.axis")
.attr("class", "enter")
.attr("transform", "translate(0,5)")
.selectAll("g")
.data(d.children)
.enter().append("svg:g")
.style("cursor", function(d) { return !d.children ? null : "pointer"; })
.on("click", down);
bar.append("svg:text")
.attr("x", -6)
.attr("y", y / 2)
.attr("dy", ".35em")
.attr("text-anchor", "end")
.text(function(d) { return d.name; });
bar.append("svg:rect")
.attr("width", function(d) { return x(d.value); })
.attr("height", y);
return bar;
}
// A stateful closure for stacking bars horizontally.
function stack(i) {
var x0 = 0;
return function(d) {
var tx = "translate(" + x0 + "," + y * i * 1.2 + ")";
x0 += x(d.value);
return tx;
};
}
</script>

you can create a new scale to handle the "shades" of your colors,
var shades = d3.scale.sqrt()
.domain([your domain])
.clamp(true)
.range([your range]);
and create a variable to control the "depth" of your drill-down, so when you are going to color your bars, you simply set the level of the color "shade" with d3.lab (Doc), like this:
function fill(d) {
var c = d3.lab(colorScale(d.barAttr));
c.l = shades(d.depth);
return c;
}

Using the same code as the second in the link you posted you could add (the ellipsis indicates nothing is changed compared to the code in the fiddle):
//initialize the scale
var colors = ["#ffffd9", "#edf8b1", "#c7e9b4", "#7fcdbb", "#41b6c4", "#1d91c0", "#225ea8", "#253494", "#081d58"];
var colorScale = d3.scale.quantile()
Then when d3 reads the data, you need to add a domain and a range. This assumes that all the biggest value any bar would have is in the children of the root node (ie in the bars that are initially displayed).
d3.json(..., function(root) {
...
colorScale.domain([0, colors.length - 1,d3.max(root.children, function(d) {
return d.value;
})]).range(colors);
...
});
You can then use the colorScale to color the bars according the value during the transitions. Here are the lines I modified:
enter.select("rect").style("fill", colorScale(d.value));
...
enterTransition.select("rect")
.attr("width", function(d) {
return x(d.value);
})
.style("fill", function(d) {
if(!d.children) return "#aaa";
return colorScale(d.value);
});
...
enter.select("rect")
.style("fill", function(d) {
return colorScale(d.value);
})
.filter(function(p) {
return p === d;
})
.style("fill-opacity", 1e-6);
...
exitTransition.select("rect")
.attr("width", function(d) {
return x(d.value);
})
.style("fill", colorScale(d.value));
Here's a working fiddle: https://jsfiddle.net/f640v0yj/2/

Make Hierarchical Bar Chart Vertical

I'm trying to create a vertical hierarchial bar chart based on this example http://bl.ocks.org/mbostock/1283663 .
I was able to position the axes but I can't seem to move the bars to start from the bottom of the chart rather than the top. Can anyone help?
var margin = {top: 30, right: 120, bottom: 30, left: 120},
width = 600 - margin.left - margin.right,
height = 300 - margin.top - margin.bottom;
var y = d3.scale.linear()
.range([height,0]);
var barWidth = 20;
var color = d3.scale.ordinal()
.range(["steelblue", "#ccc"]);
var duration = 750,
delay = 25;
var partition = d3.layout.partition()
.value(function(d) { return d.size; });
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
var xAxis = d3.svg.axis()
.scale(barWidth)
.orient("botom");
var svg = d3.select(".sales-pipeline-chart").append("svg:svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
svg.append("rect")
.attr("class", "background")
.attr("width", width)
.attr("height", height)
.on("click", up);
svg.append("g")
.attr("class", "y axis");
svg.append("g")
.attr("class", "x axis")
.append("line")
.attr("x1", "100%")
.attr("transform", "translate(0," + height + ")");
d3.json("/flare.json", function(root) {
partition.nodes(root);
y.domain([0, root.value]).nice();
down(root, 0);
});
function down(d, i) {
if (!d.children || this.__transition__) return;
var end = duration + d.children.length * delay;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter")
.attr("class", "exit");
// Entering nodes immediately obscure the clicked-on bar, so hide it.
exit.selectAll("rect").filter(function(p) { return p === d; })
.style("fill-opacity", 1e-6);
// Enter the new bars for the clicked-on data.
// Per above, entering bars are immediately visible.
var enter = bar(d)
.attr("transform", stack(i))
.style("opacity", 1);
// Have the text fade-in, even though the bars are visible.
// Color the bars as parents; they will fade to children if appropriate.
enter.select("text").style("fill-opacity", 1e-6);
enter.select("rect").style("fill", color(true));
// Update the x-scale domain.
y.domain([0, d3.max(d.children, function(d) { return d.value; })]).nice();
// Update the x-axis.
svg.selectAll(".y.axis").transition()
.duration(duration)
.call(yAxis);
// Transition entering bars to their new position.
var enterTransition = enter.transition()
.duration(duration)
.delay(function(d, i) { return i * delay; })
.attr("transform", function(d, i) { return "translate(" + barWidth *
i * 1.2 + ",0)"; });
// Transition entering text.
enterTransition.select("text")
.style("fill-opacity", 1);
// Transition entering rects to the new x-scale.
enterTransition.select("rect")
.attr("height", function(d) { return y(d.value); })
.style("fill", function(d) { return color(!!d.children); });
// Transition exiting bars to fade out.
var exitTransition = exit.transition()
.duration(duration)
.style("opacity", 1e-6)
.remove();
// Transition exiting bars to the new x-scale.
exitTransition.selectAll("rect")
.attr("height", function(d) { return y(d.value); });
// Rebind the current node to the background.
svg.select(".background")
.datum(d)
.transition()
.duration(end);
d.index = i;
}
function up(d) {
if (!d.parent || this.__transition__) return;
var end = duration + d.children.length * delay;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter")
.attr("class", "exit");
// Enter the new bars for the clicked-on data's parent.
var enter = bar(d.parent)
.attr("transform", function(d, i) { return "translate(" + barWidth *
i * 1.2 + ",0)"; })
.style("opacity", 1e-6);
// Color the bars as appropriate.
// Exiting nodes will obscure the parent bar, so hide it.
enter.select("rect")
.style("fill", function(d) { return color(!!d.children); })
.filter(function(p) { return p === d; })
.style("fill-opacity", 1e-6);
// Update the x-scale domain.
y.domain([0, d3.max(d.parent.children, function(d) { return d.value;
})]).nice();
// Update the x-axis.
svg.selectAll(".y.axis").transition()
.duration(duration)
.call(yAxis);
// Transition entering bars to fade in over the full duration.
var enterTransition = enter.transition()
.duration(end)
.style("opacity", 1);
// Transition entering rects to the new x-scale.
// When the entering parent rect is done, make it visible!
enterTransition.select("rect")
.attr("height", function(d) { return y(d.value); })
.each("end", function(p) { if (p === d)
d3.select(this).style("fill-opacity", null); });
// Transition exiting bars to the parent's position.
var exitTransition = exit.selectAll("g").transition()
.duration(duration)
.delay(function(d, i) { return i * delay; })
.attr("transform", stack(d.index));
// Transition exiting text to fade out.
exitTransition.select("text")
.style("fill-opacity", 1e-6);
// Transition exiting rects to the new scale and fade to parent color.
exitTransition.select("rect")
.attr("height", function(d) { return y(d.value); })
.style("fill", color(true));
// Remove exiting nodes when the last child has finished transitioning.
exit.transition()
.duration(end)
.remove();
// Rebind the current parent to the background.
svg.select(".background")
.datum(d.parent)
.transition()
.duration(end);
}
// Creates a set of bars for the given data node, at the specified index.
function bar(d) {
var bar = svg.insert("g", ".x.axis")
.attr("class", "enter")
.attr("transform", "translate(5,0)")
.selectAll("g")
.data(d.children)
.enter().append("g")
.style("cursor", function(d) { return !d.children ? null : "pointer";
})
.on("click", down);
bar.append("text")
.attr("y", -6)
.attr("x", barWidth / 2)
.attr("dx", ".35em")
.style("text-anchor", "end")
.text(function(d) { return d.name; });
bar.append("rect")
.attr("height", function(d) { return y(d.value); })
.attr("width", barWidth);
return bar;
}
// A stateful closure for stacking bars horizontally.
function stack(i) {
var y0 = 0;
return function(d) {
var tx = "translate(" + barWidth * i * 1.2 + "," + y0 + ")";
y0 += y(d.value);
return tx;
};
}

I was able to move the bars so they now start at the bottom but there are still some problems with the animation. The drill up doesn't work and also I would like to move the text below the xAxis.
var margin = {top: 30, right: 120, bottom: 30, left: 120},
width = 600 - margin.left - margin.right,
height = 300 - margin.top - margin.bottom;
var y = d3.scale.linear()
.range([height,0]);
var barHeight = 40;
var color = d3.scale.ordinal()
.range(["steelblue", "#ccc"]);
var duration = 750,
delay = 25;
var partition = d3.layout.partition()
.value(function(d) { return d.size; });
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
var xAxis = d3.svg.axis()
.scale(barHeight)
.orient("botom");
var svg = d3.select(".sales-pipeline-chart").append("svg:svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.right + "," + margin.top + ")");
svg.append("rect")
.attr("class", "background")
.attr("width", width)
.attr("height", height)
.on("click", up);
svg.append("g")
.attr("class", "y axis");
svg.append("g")
.attr("class", "x axis")
.append("line")
.attr("x1", "100%")
.attr("transform", "translate(0," + height + ")");
d3.json("/flare.json", function(root) {
partition.nodes(root);
y.domain([0, root.value]).nice();
down(root, 0);
});
function down(d, i) {
if (!d.children || this.__transition__) return;
var end = duration + d.children.length * delay;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter").attr("class", "exit");
// Entering nodes immediately obscure the clicked-on bar, so hide it.
exit.selectAll("rect").filter(function(p) { return p === d; })
.style("fill-opacity", 1e-6);
// Enter the new bars for the clicked-on data.
// Per above, entering bars are immediately visible.
//var barHeight = w / d.children.length;
var enter = bar(d)
.attr("transform", stack(i))
.style("opacity", 1);
// Have the text fade-in, even though the bars are visible.
// Color the bars as parents; they will fade to children if appropriate.
enter.select("text").style("fill-opacity", 1e-6);
enter.select("rect").style("fill", color(true));
// Update the y-scale domain.
y.domain([0, d3.max(d.children, function(d) { return d.value; })]).nice();
// Update the y-axis.
svg.selectAll(".y.axis").transition()
.duration(duration)
.call(yAxis);
// Transition entering bars to their new position.
var enterTransition = enter.transition()
.duration(duration)
.delay(function(d, i) { return i * delay; })
.attr("transform", function(d, i) { return "translate(" + barHeight * i * 1.2 + "," + (height- y(d.value)) + ")"; });
// Transition entering text.
enterTransition.select("text").style("fill-opacity", 1);
// Transition entering rects to the new x-scale.
enterTransition.select("rect")
.attr("height", function(d) { return y(d.value); })
.style("fill", function(d) { return color(!!d.children); });
// Transition exiting bars to fade out.
var exitTransition = exit.transition()
.duration(duration)
.style("opacity", 1e-6)
.remove();
// Transition exiting bars to the new x-scale.
exitTransition.selectAll("rect").attr("height", function(d) { return y(d.value); });
// Rebind the current node to the background.
svg.select(".background").data(d).transition().duration(duration * 2); d.index = i;
}
function up(d) {
if (!d.parent || this.__transition__) return;
var end = duration + d.children.length * delay;
// Mark any currently-displayed bars as exiting.
var exit = svg.selectAll(".enter").attr("class", "exit");
// Enter the new bars for the clicked-on data's parent.
var enter = bar(d.parent)
.attr("transform", function(d, i) { return "translate(" + barHeight * i * 1.2 + "," + (height - y(d.value)) + ")"; })
.style("opacity", 1e-6);
// Color the bars as appropriate.
// Exiting nodes will obscure the parent bar, so hide it.
enter.select("rect")
.style("fill", function(d) { return color(!!d.children); })
.filter(function(p) { return p === d; })
.style("fill-opacity", 1e-6);
// Update the x-scale domain.
y.domain([0, d3.max(d.parent.children, function(d) { return d.value; })]).nice();
// Update the x-axis.
svg.selectAll(".y.axis").transition()
.duration(duration)
.call(yAxis);
// Transition entering bars to fade in over the full duration.
var enterTransition = enter.transition()
.duration(end)
.style("opacity", 1);
// Transition entering rects to the new x-scale.
// When the entering parent rect is done, make it visible!
enterTransition.select("rect")
.attr("height", function(d) { return y(d.value); })
.each("end", function(p) { if (p === d) d3.select(this).style("fill-opacity", null); });
// Transition exiting bars to the parent's position.
var exitTransition = exit.selectAll("g").transition()
.duration(duration)
.delay(function(d, i) { return i * delay; })
.attr("transform", stack(d.index));
// Transition exiting text to fade out.
exitTransition.select("text")
.style("fill-opacity", 1e-6);
// Transition exiting rects to the new scale and fade to parent color.
exitTransition.select("rect")
.attr("height", function(d) { return y(d.value); })
.style("fill", color(true));
// Remove exiting nodes when the last child has finished transitioning.
exit.transition().duration(end).remove();
// Rebind the current parent to the background.
svg.select(".background").data(d.parent).transition().duration(duration * 2);
}
// Creates a set of bars for the given data node, at the specified index.
function bar(d) {
var bar = svg.insert("g", ".x.axis")
.attr("class", "enter")
.attr("transform", "translate(10,0)")//0.10
.selectAll("g")
.data(d.children)
.enter().append("g")
.style("cursor", function(d) { return !d.children ? null : "pointer"; })
.on("click", down);
bar.append("text")
.attr("y", -6)
.attr("x",barHeight/2)
.attr("dx", ".35em")//
.attr("text-anchor", "middle")
.text(function(d) { return d.name; });
bar.append("rect")
.attr("height", function(d) { return y(d.value); })
.attr("width", barHeight);
return bar;
}
// A stateful closure for stacking bars horizontally.
function stack(i) {
var y0 = 0;
return function(d) {
var ty = "translate(" + barHeight * i * 1.2+ "," + y0 + ")";
y0 += y(d.value);
return ty;
};
}

Add legend to d3 scatterplot matrix

I'm trying to add a legend to a d3 scatterplot matrix (using this example as a template: http://bl.ocks.org/mbostock/4063663), and while the scatterplot itself is displaying as expected, I have been unable to successfully add a legend. The code for the plot and one of the attempts at adding a legend are below:
var width = 960,
size = 150,
padding = 19.5;
var x = d3.scale.linear()
.range([padding / 2, size - padding / 2]);
var y = d3.scale.linear()
.range([size - padding / 2, padding / 2]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom")
.ticks(5);
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5);
var color = d3.scale.category10();
d3.csv(datafilename, function(error, dataset) {
var domainByTrait = {},
traits = d3.keys(dataset[0]).filter(function(d) { return d !== "class"; }),
n = traits.length;
traits.forEach(function(trait) {
domainByTrait[trait] = d3.extent(dataset, function(d) { return d[trait]; });
});
xAxis.tickSize(size * n);
yAxis.tickSize(-size * n);
var brush = d3.svg.brush()
.x(x)
.y(y)
.on("brushstart", brushstart)
.on("brush", brushmove)
.on("brushend", brushend);
var svg = d3.select("#visualizationDiv").append("svg")
.attr("width", size * n + padding)
.attr("height", size * n + padding)
.append("g")
.attr("transform", "translate(" + padding + "," + padding / 2 + ")");
svg.selectAll(".x.axis")
.data(traits)
.enter().append("g")
.attr("class", "x axis")
.attr("transform", function(d, i) { return "translate(" + (n - i - 1) * size + ",0)"; })
.each(function(d) { x.domain(domainByTrait[d]); d3.select(this).call(xAxis); });
svg.selectAll(".y.axis")
.data(traits)
.enter().append("g")
.attr("class", "y axis")
.attr("transform", function(d, i) { return "translate(0," + i * size + ")"; })
.each(function(d) { y.domain(domainByTrait[d]); d3.select(this).call(yAxis); });
var cell = svg.selectAll(".cell")
.data(cross(traits, traits))
.enter().append("g")
.attr("class", "cell")
.attr("transform", function(d) { return "translate(" + (n - d.i - 1) * size + "," + d.j * size + ")"; })
.each(plot);
// Titles for the diagonal.
cell.filter(function(d) { return d.i === d.j; }).append("text")
.attr("x", padding)
.attr("y", padding)
.attr("dy", ".71em")
.text(function(d) { return d.x; });
cell.call(brush);
function plot(p) {
var cell = d3.select(this);
x.domain(domainByTrait[p.x]);
y.domain(domainByTrait[p.y]);
cell.append("rect")
.attr("class", "frame")
.attr("x", padding / 2)
.attr("y", padding / 2)
.attr("width", size - padding)
.attr("height", size - padding);
cell.selectAll("circle")
.data(dataset)
.enter().append("circle")
.attr("cx", function(d) { return x(d[p.x]); })
.attr("cy", function(d) { return y(d[p.y]); })
.attr("r", 3)
.style("fill", function(d) { return color(d.class); });
}
var brushCell;
// Clear the previously-active brush, if any.
function brushstart(p) {
if (brushCell !== this) {
d3.select(brushCell).call(brush.clear());
x.domain(domainByTrait[p.x]);
y.domain(domainByTrait[p.y]);
brushCell = this;
}
}
// Highlight the selected circles.
function brushmove(p) {
var e = brush.extent();
svg.selectAll("circle").classed("hidden", function(d) {
return e[0][0] > d[p.x] || d[p.x] > e[1][0]
|| e[0][1] > d[p.y] || d[p.y] > e[1][1];
});
}
// If the brush is empty, select all circles.
function brushend() {
if (brush.empty()) svg.selectAll(".hidden").classed("hidden", false);
}
function cross(a, b) {
var c = [], n = a.length, m = b.length, i, j;
for (i = -1; ++i < n;) for (j = -1; ++j < m;) c.push({x: a[i], i: i, y: b[j], j: j});
return c;
}
d3.select(self.frameElement).style("height", size * n + padding + 20 + "px");
// add legend
var legend = svg.append("g")
.attr("class", "legend")
.attr("height", 100)
.attr("width", 100)
.attr('transform', 'translate(-20,50)');
legend.selectAll('rect')
.data(dataset)
.enter()
.append("rect")
.attr("x", width - 65)
.attr("y", function(d, i){ return i * 20;})
.attr("width", 10)
.attr("height", 10)
.style("fill", function(d) { return color(d.class); });
legend.selectAll('text')
.data(dataset)
.enter()
.append("text")
.attr("x", width - 52)
.attr("y", function(d, i){ return i * 20 + 9;})
.text(function(d) { return d.class; });
});
Among my other unsuccessful attempts at adding a legend are
var legend = svg.selectAll("g")
.data(dataset)
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
legend.append("rect")
.attr("x", width - 28)
.attr("width", 18)
.attr("height", 18)
.style("fill", function(d) { return color(d.class); });
legend.append("text")
.attr("x", width - 34)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function(d) { return d.class; });
and
var legend = svg.selectAll('g').data(dataset)
.enter()
.append('g')
.attr("class", "legend");
legend.append("rect")
.attr("x", width - 45)
.attr("y", 25)
.attr("height", 50)
.attr("width", 50)
.each(function(d, i) {
var g = d3.select(this);
g.append("rect")
.attr("x", width - 65)
.attr("y", i*25)
.attr("width", 10)
.attr("height", 10)
.style("fill", function(d) { return color(d.class); });
g.append("text")
.attr("x", width - 50)
.attr("y", i * 25 + 8)
.attr("height",30)
.attr("width",100)
.style("fill", function(d) { return color(d.class); })
.text(function(d) { return d.class; });
all based on examples I've found on the web. None of these approaches seem to be working - I must be missing something here. Any insights or suggestions would be greatly appreciated.

The problem is right at the beginning:
var legend = svg.selectAll('g').data(dataset)
.enter()
.append('g')
.attr("class", "legend");
The selectAll('g') is going to select one of the groups already in your diagram, and then nothing will happen because enter() indicates that everything from there on (including the value that gets saved to the legend variable) only applies to groups that don't exist yet.
I'm pretty sure this legend code is supposed to be run from within its own <g> element. That way, it won't interfere with the rest of your graph.
var legendGroup = svg.append('g')
.attr('class', 'legend')
.attr('transform', /* translate as appropriate */);
var legendEntry = legendGroup.selectAll('g')
.data(dataset);
//create one legend entry for each series in the dataset array
//if that's not what you want, create an array that has one
//value for every entry you want in the legend
legendEntry.enter().append("g")
.attr("class", "legend-entry")
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
//shift each entry down by approx 1 line (20px)
legendEntry.append("rect") //add a square to each entry
/* and so on */