[bugfix] fixing && linting the histogram viz (#987)

This commit is contained in:
Maxime Beauchemin 2016-08-19 18:03:27 -07:00 committed by GitHub
parent a8715294b0
commit 7f2805a3c5
2 changed files with 142 additions and 141 deletions

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@ -8,5 +8,6 @@
"prefer-arrow-callback": 0,
"func-names": 0,
"react/jsx-no-bind": 0,
"no-confusing-arrow": 0,
}
}

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@ -1,151 +1,151 @@
// JS
const d3 = require('d3')
const px = window.px || require('../javascripts/modules/caravel.js')
import { category21 } from '../javascripts/modules/colors';
import d3 from 'd3';
// CSS
require('./histogram.css')
require('./histogram.css');
function histogram(slice) {
const div = d3.select(slice.selector)
const _draw = function(data, numBins) {
// Set Margins
const margin = {
top: 50,
right: 10,
bottom: 20,
left: 50,
};
const navBarHeight = 36;
const navBarTitleSize = 12;
const navBarBuffer = 10;
const width = slice.width() - margin.left - margin.right;
const height = slice.height() - margin.top - margin.bottom - navBarHeight - navBarBuffer;
// Set Histogram objects
const formatNumber = d3.format(',.0f');
const formatTicks = d3.format(',.00f');
const x = d3.scale.ordinal();
const y = d3.scale.linear();
const xAxis = d3.svg.axis().scale(x).orient('bottom').ticks(numBins).tickFormat(formatTicks);
const yAxis = d3.svg.axis().scale(y).orient('left').ticks(numBins*3);
// Calculate bins for the data
const bins = d3.layout.histogram().bins(numBins)(data);
// Set the x-values
x.domain(bins.map(function(d) { return d.x;}))
.rangeRoundBands([0, width], .1);
// Set the y-values
y.domain([0, d3.max(bins, function(d) { return d.y;})])
.range([height, 0]);
// Create the svg value with the bins
const svg = div.selectAll('svg').data([bins]).enter().append('svg');
// Make a rectangular background fill
svg.append('rect')
.attr('width', '100%')
.attr('height', '100%')
.attr('fill', '#f6f6f6');
// Transform the svg to make space for the margins
const gEnter = svg
.append('g')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
// Add the bars and the x axis
gEnter.append('g').attr('class', 'bars');
gEnter.append('g').attr('class', 'x axis');
// Add width and height to the svg
svg.attr('width', slice.width())
.attr('height', slice.height());
// Create the bars in the svg
const bar = svg.select('.bars').selectAll('.bar').data(bins);
bar.enter().append('rect');
bar.exit().remove();
// Set the Height and Width for each bar
bar .attr('width', x.rangeBand())
.attr('x', function(d) { return x(d.x); })
.attr('y', function(d) { return y(d.y); })
.attr('height', function(d) {
return y.range()[0] - y(d.y);
})
.attr('fill', function(d) { return px.color.category21(d.length); })
.order();
// Find maximum length to position the ticks on top of the bar correctly
const maxLength = d3.max(bins, function(d) { return d.length;});
function textAboveBar(d) {
return d.length/maxLength < 0.1;
}
// Add a bar text to each bar in the histogram
svg.selectAll('.bartext')
.data(bins)
.enter()
.append('text')
.attr('dy', '.75em')
.attr('y', function(d) {
let padding = 0.0
if (textAboveBar(d)) {
padding = 12.0
} else {
padding = -8.0
}
return y(d.y) - padding;
})
.attr('x', function(d) { return x(d.x) + (x.rangeBand()/2);})
.attr('text-anchor', 'middle')
.attr('font-weight', 'bold')
.attr('font-size', '15px')
.text(function(d) { return formatNumber(d.y); })
.attr('fill', function(d) {
if(textAboveBar(d)) { return 'black'; } else { return 'white'; }
})
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
// Update the x-axis
svg.append('g')
.attr('class', 'axis')
.attr('transform', 'translate(' + margin.left + ',' + (height + margin.top) + ')')
.text('values')
.call(xAxis);
// Update the Y Axis and add minor lines
svg.append('g')
.attr('class', 'axis')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')')
.text('count')
.call(yAxis)
.selectAll('g')
.filter(function(d) { return d; })
.classed('minor', true);
const div = d3.select(slice.selector);
const draw = function (data, numBins) {
// Set Margins
const margin = {
top: 50,
right: 10,
bottom: 20,
left: 50,
};
const navBarHeight = 36;
const navBarBuffer = 10;
const width = slice.width() - margin.left - margin.right;
const height = slice.height() - margin.top - margin.bottom - navBarHeight - navBarBuffer;
const render = function() {
d3.json(slice.jsonEndpoint(), function(error, json) {
if(error !== null) {
slice.error(error.responseText, error);
return '';
}
const numBins = Number(json.form_data.link_length) || 10;
// Set Histogram objects
const formatNumber = d3.format(',.0f');
const formatTicks = d3.format(',.00f');
const x = d3.scale.ordinal();
const y = d3.scale.linear();
const xAxis = d3.svg.axis()
.scale(x)
.orient('bottom')
.ticks(numBins)
.tickFormat(formatTicks);
const yAxis = d3.svg.axis()
.scale(y)
.orient('left')
.ticks(numBins * 3);
// Calculate bins for the data
const bins = d3.layout.histogram().bins(numBins)(data);
div.selectAll('*').remove();
_draw(json.data, numBins);
slice.done(json);
});
};
// Set the x-values
x.domain(bins.map((d) => d.x))
.rangeRoundBands([0, width], 0.1);
// Set the y-values
y.domain([0, d3.max(bins, (d) => d.y)])
.range([height, 0]);
return {
render: render,
resize: render,
};
// Create the svg value with the bins
const svg = div.selectAll('svg')
.data([bins])
.enter()
.append('svg');
// Make a rectangular background fill
svg.append('rect')
.attr('width', '100%')
.attr('height', '100%')
.attr('fill', '#f6f6f6');
// Transform the svg to make space for the margins
const gEnter = svg
.append('g')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
// Add the bars and the x axis
gEnter.append('g').attr('class', 'bars');
gEnter.append('g').attr('class', 'x axis');
// Add width and height to the svg
svg.attr('width', slice.width())
.attr('height', slice.height());
// Create the bars in the svg
const bar = svg.select('.bars').selectAll('.bar').data(bins);
bar.enter().append('rect');
bar.exit().remove();
// Set the Height and Width for each bar
bar.attr('width', x.rangeBand())
.attr('x', (d) => x(d.x))
.attr('y', (d) => y(d.y))
.attr('height', (d) => y.range()[0] - y(d.y))
.style('fill', (d) => category21(d.length))
.order();
// Find maximum length to position the ticks on top of the bar correctly
const maxLength = d3.max(bins, (d) => d.length);
function textAboveBar(d) {
return d.length / maxLength < 0.1;
}
// Add a bar text to each bar in the histogram
svg.selectAll('.bartext')
.data(bins)
.enter()
.append('text')
.attr('dy', '.75em')
.attr('y', function (d) {
let padding = 0.0;
if (textAboveBar(d)) {
padding = 12.0;
} else {
padding = -8.0;
}
return y(d.y) - padding;
})
.attr('x', (d) => x(d.x) + (x.rangeBand() / 2))
.attr('text-anchor', 'middle')
.attr('font-weight', 'bold')
.attr('font-size', '15px')
.text((d) => formatNumber(d.y))
.attr('fill', (d) => textAboveBar(d) ? 'black' : 'white')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
// Update the x-axis
svg.append('g')
.attr('class', 'axis')
.attr('transform', 'translate(' + margin.left + ',' + (height + margin.top) + ')')
.text('values')
.call(xAxis);
// Update the Y Axis and add minor lines
svg.append('g')
.attr('class', 'axis')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')')
.text('count')
.call(yAxis)
.selectAll('g')
.filter(function (d) { return d; })
.classed('minor', true);
};
const render = function () {
d3.json(slice.jsonEndpoint(), function (error, json) {
if (error !== null) {
slice.error(error.responseText, error);
return;
}
const numBins = Number(json.form_data.link_length) || 10;
div.selectAll('*').remove();
draw(json.data, numBins);
slice.done(json);
});
};
return {
render,
resize: render,
};
}
module.exports = histogram;