customizing d3.js brush as slider - d3.js

I am trying to follow the below example http://bl.ocks.org/mbostock/6452972 and i ve not been very successful in understanding the specifics involved. Would be great if someone can help me in explaining where the co ordinates and size of the slider can be customized? ps I am new to d3 and javascript :(

You can play with the size of the slider using the margin and size properties:
var margin = {top: 100, right: 50, bottom: 100, left: 50},
width = 460 - margin.left - margin.right,
height = 200 - margin.bottom - margin.top;
JSBin here

Related

d3.js - Dendrogram display adjusted to the tree diagram

With d3.js I have created d3 dendrograms to visualize hierachicals relations between objects. Dimensions and margins of the graph are defined with fixed height and width values.
var width = 1000,
height = 800,
boxWidth = 150,
boxHeight = 35,
gap = {
width: 50,
height: 12
},
margin = {
top: 16,
right: 16,
bottom: 16,
left: 16
},
svg;
With a few relations, display is ok but with many relations it's doesn't fit, graph is 'cut' and I can't see the entire graph. How to set this width and height properties dynamically and adjusted to the size of the graph ?
An example with a correct display : Codepen
An example with an incorrect display : Codepen
Let's work this out, you need to know the bounding box of your content first and then adjust the svg size. To do that, in this particular case, you only have to look at the boxes or nodes and can ignore the links.
With that in mind you can do the following after populating the Nodes in your renderRelationshipGraph function and return the calculated value:
function renderRelationshipGraph(data) {
// ...
var bbox = Nodes.reduce(function (max, d)
{
var w = d.x + boxWidth;
var h = d.y + boxHeight;
if (w > max[0]) {max[0] = w}
if (h > max[1]) {max[1] = h}
return max
}, [0,0])
return bbox
}
then on the main code change use it to update height and width of the svg:
svg = d3.select("#tree").append("svg")
.attr("width", width)
.attr("height", height);
svg.append("g");
var bbox = renderRelationshipGraph(data);
svg.attr("width", bbox[0])
.attr("height", bbox[1]);
You can add a transition and limit the height but this does what you requested with a really large end result.

Bar graph not within axis

I'm having trouble having the bar graph contained within the axis. I tried adjusting the margin but it's still below the x-axis. Any suggestions would be appreciated. Thankyou
this is my margin:
margin = {
top: 70,
right: 20,
bottom: 70,
left: 70
},
width = 600 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom,
padding = 15;

Y-axis ticks' labels visible partially

Which parameter should I manipulate to have whole labels visible here? As you see, hundreds are displayed as "00", "20" and so on:
There is a related question linked here: How to increase tick label width in d3.js axis
Eventually it lead me to this piece of code (padding was already defined in my script):
var padding = 25;
var margin = {top: 20, right: 40, bottom: 30, left: 60},
width = 560 - margin.left - margin.right,
height = 300 - margin.top - margin.bottom;
Manipulating these values (margins and padding) finally gave me the result I wanted: the Y-axis labels are visible:

d3 area graph going out of bounds

I am struggling to keep the area graph inbounds for a particular set of data. I am not able to figure out what exactly is making it go out of range
var xRange = d3.scale.linear().range([MARGINS.left, WIDTH - MARGINS.right]).domain([0, numberOfDays + 1]),
yRange = d3.scale.linear().range([HEIGHT - MARGINS.top, MARGINS.bottom]).domain([_.min(areaData), _.max(areaData)]);
js fiddle here
https://jsfiddle.net/sahils/o7df3tyn/20/
Its due to you setting them exactly so these lines :
<svg id="visualisation" width="1200" height="400"></svg>
And
WIDTH = 1000,
HEIGHT = 400,
Rather than this just use window size :
var WIDTH = window.innerWidth,
HEIGHT = window.innerHeight,
vis = d3.select('#visualisation').attr('width', WIDTH).attr('height', HEIGHT)
And remove the styling from your html. Updated fiddle : https://jsfiddle.net/thatOneGuy/o7df3tyn/23/

How to fix the height of each bar on a rowChart?

I have a rowChart that can have more or less bars based on what you filter on other graphs.
The problem is that if I set the height of the graph to e.g. 500, if I have 50 bars they will be 10px height but if I have only one, it will be 500px
var graph = dc.rowChart (".graph")
.margins({top: 0, right: 10, bottom: 20, left: 10})
.height(300)
.width(200)
.gap(0)
.x(d3.scale.ordinal())
.elasticX(true)
.ordering(function(d){return -d.value})
.dimension(dim)
.group(filteredGroup);
The group will return the top 10, but if you filter (using other graphs, you might have as low as a single item. In that case, that bar is 300px height and it looks not good (and in general, having the height change that much is not pleasant IMO).
Is there a way to leave the height of the graph flexible but the height of each bar fixed?
So to say that each bar has a height of 30, but the height of the graph is going to adjust from 30 to 300.
According to the latest documentation for DC row charts:
.fixedBarHeight([height])
Get or set the fixed bar height. Default is [false] which will
auto-scale bars. For example, if you want to fix the height for a
specific number of bars (useful in TopN charts) you could fix height
as follows (where count = total number of bars in your TopN and gap is
your vertical gap space).
Example:
var chartheight = 500;
var gap = 5;
var count = 20;
var spaceForScales = 70;
c.fixedBarHeight((chartheight - (count + 1) * gap - spaceForScales) / count);

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