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@carnby carnby/d3-legend.min.js Secret
Last active Dec 21, 2015

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!function a(b,c,d){function e(g,h){if(!c[g]){if(!b[g]){var i="function"==typeof require&&require;if(!h&&i)return i(g,!0);if(f)return f(g,!0);var j=new Error("Cannot find module '"+g+"'");throw j.code="MODULE_NOT_FOUND",j}var k=c[g]={exports:{}};b[g][0].call(k.exports,function(a){var c=b[g][1][a];return e(c?c:a)},k,k.exports,a,b,c,d)}return c[g].exports}for(var f="function"==typeof require&&require,g=0;g<d.length;g++)e(d[g]);return e}({1:[function(a,b,c){var d=a("./legend");b.exports=function(){function a(a){var v=d.d3_calcType(c,t,j,k,o,r),w=a.selectAll("g").data([c]);w.enter().append("g").attr("class",l+"legendCells");var x=w.selectAll("."+l+"cell").data(v.data),y=x.enter().append("g",".cell").attr("class",l+"cell").style("opacity",1e-6);shapeEnter=y.append(e).attr("class",l+"swatch"),shapes=x.select("g."+l+"cell "+e),d.d3_addEvents(y,u),x.exit().transition().style("opacity",0).remove(),d.d3_drawShapes(e,shapes,g,f,h,b),d.d3_addText(w,y,v.labels,l);var z=x.select("text"),A=shapes[0].map(function(a){return a.getBBox()});m?shapes.attr("class",function(a){return l+"swatch "+v.feature(a)}):"line"==e?shapes.style("stroke",v.feature):shapes.style("fill",v.feature);var B,C,D="start"==q?0:"middle"==q?.5:1;"vertical"===s?(B=function(a,b){return"translate(0, "+b*(A[b].height+i)+")"},C=function(a,b){return"translate("+(A[b].width+A[b].x+p)+","+(A[b].y+A[b].height/2+5)+")"}):"horizontal"===s&&(B=function(a,b){return"translate("+b*(A[b].width+i)+",0)"},C=function(a,b){return"translate("+(A[b].width*D+A[b].x)+","+(A[b].height+A[b].y+p+8)+")"}),d.d3_placement(s,x,B,z,C,q),d.d3_title(a,w,n,l),x.transition().style("opacity",1)}var b,c=d3.scale.linear(),e="rect",f=15,g=15,h=10,i=2,j=[5],k=[],l="",m=!1,n="",o=d3.format(".01f"),p=10,q="middle",r="to",s="vertical",t=!1,u=d3.dispatch("cellover","cellout","cellclick");return a.scale=function(b){return arguments.length?(c=b,a):a},a.cells=function(b){return 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<!DOCTYPE html>
<meta charset="utf-8">
<style>
.bar { fill: steelblue; }
.bar:hover { fill: brown; }
.axis { font: 10px sans-serif; }
.axis path, .axis line { fill: none; stroke: #000; shape-rendering: crispEdges; }
.x.axis path { display: none; }
</style>
<body>
<script src="require.js"></script>
<script>
require.config({
shim: {
'legend': {
'deps': ['d3'],
'exports': 'd3.legend'
}
},
paths: {
'matta': 'matta',
'd3': 'd3.min',
'legend': 'd3-legend.min',
'barchart': 'scaffolded_barchart'
}
});
require(['d3', 'barchart'], function(d3, matta_barchart) {
d3.json('data.json', function (json) {
var barchart = matta_barchart();
d3.select('body').datum({dataframe: json}).call(barchart)
});
});
</script>
@import url(./leaflet-0.7.3/leaflet.css);
/*
* Legend styling
* From http://bl.ocks.org/mbostock/1166403
*/
.axis path {
fill: none;
stroke: none;
}
.axis .minor {
stroke-opacity: .5;
stroke: black;
}
.axis text {
font-size: 10px;
}
.axis path.domain {
display: none;
}
.axis line {
stroke: #efefef;
shape-rendering: crispEdges;
}
g.legendCells circle.swatch {
fill: '#efefef';
}
/*
* We need the following because the IPython/Jupyter notebook makes SVGs invisible in our case.
*/
.rendered_html svg,
div.output_area div.matta_figure div.leaflet_container svg {
max-width: unset !important;
}
define('matta', ['d3', 'legend'], function(d3, legend) {
"use strict";
var matta = {};
// we wrap d3.legend.
matta.legend = legend;
matta.add_css = function(url) {
d3.select('head').append('link').attr({rel: 'stylesheet', href: url});
};
matta.move_to_front = function(selection) {
/**
* Makes all elements in the selection to be on front (over) other elements in the same group.
*
* Source: https://gist.github.com/trtg/3922684
*/
selection.each(function(){
this.parentNode.appendChild(this);
});
};
matta.prepare_graph = function(graph) {
/**
* Sets the expected structure by d3.js on a NetworkX graph.
*/
if (graph.hasOwnProperty('__matta_prepared__') && graph['__matta_prepared__'] == true) {
return;
}
var node_map = d3.map();
graph.nodes.forEach(function(d) {
node_map.set(d.id, d);
});
graph.nodes.forEach(function(d) {
if (d.parent != null) {
d.parent = node_map.get(d.parent);
}
});
graph.links.forEach(function(d) {
d.source = graph.nodes[d.source];
d.target = graph.nodes[d.target];
});
// graph attributes
if (graph.hasOwnProperty('graph') && Array.isArray(graph.graph)) {
graph.graph.forEach(function (d) {
graph[d[0]] = d[1];
});
}
graph['__matta_prepared__'] = true;
console.log('prepared graph', graph);
};
matta.scale = function(name) {
/**
* Helper function to build scales.
* In this way, in python we can define scales by name ('linear', 'sqrt', 'log') or exponent (e.g., 0.5).
*/
if (d3.scale.hasOwnProperty(name)) {
return d3.scale[name]();
}
return d3.scale.pow().exponent(name);
};
matta.fit_projection = function(width, height, bounding_box) {
/**
* Given width and height, and a bounding box, returns the projection parameters to fit the box into the screen.
* Based on http://bl.ocks.org/mbostock/4573883
*/
var b = bounding_box;
var s = .95 / Math.max((b[1][0] - b[0][0]) / width, (b[1][1] - b[0][1]) / height);
var t = [(width - s * (b[1][0] + b[0][0])) / 2, (height - s * (b[1][1] + b[0][1])) / 2];
return [s, t];
};
matta.get = function(obj, path) {
/**
* Given a path to an object member (e.g., 'parent.name'), return the object if it exists, null otherwise.
*/
if (path === null) {
return null;
}
if (typeof(path) === 'number') {
return obj[path];
}
var current = obj;
var properties = path.split('.');
for (var i = 0; i < properties.length; i++) {
var property = properties[i];
if (!current.hasOwnProperty(property)) {
current = null;
break;
}
current = current[property];
}
return current;
};
matta.text_color = function(color) {
/**
* Given a color, return a suitable text color.
* Function extracted from the D3 Plus library at http://d3plus.org/
*/
var b, g, r, rgbColor, yiq;
rgbColor = d3.rgb(color);
r = rgbColor.r;
g = rgbColor.g;
b = rgbColor.b;
yiq = (r * 299 + g * 587 + b * 114) / 1000;
if (yiq >= 128) {
return "#444444";
} else {
return "#f7f7f7";
}
};
matta.to_time_string = function(timedelta) {
/**
* Given a timedelta serialized as the number of seconds, returns a string with 'HH:MM:SS' format.
*/
var duration = moment.duration(timedelta, 'seconds');
var hours = '' + duration.hours();
if (hours.length == 1) {
hours = '0' + hours;
}
var minutes = '' + duration.minutes();
if (minutes.length == 1) {
minutes = '0' + minutes;
}
var seconds = '' + duration.seconds();
if (seconds.length == 1) {
seconds = '0' + seconds;
}
return hours + ':' + minutes + ':' + seconds;
};
return matta;
});
/*
RequireJS 2.1.22 Copyright (c) 2010-2015, The Dojo Foundation All Rights Reserved.
Available via the MIT or new BSD license.
see: http://github.com/jrburke/requirejs for details
*/
var requirejs,require,define;
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define("barchart", ["matta", "d3"], function (matta, d3) {
/**
*
* barchart was scaffolded using matta - https://github.com/carnby/matta
* Variables that start with an underscore (_) are passed as arguments in Python.
* Variables that start with _data are data parameters of the visualization, and expected to be given as datum.
*
* For instance, d3.select('#figure').datum({'graph': a_json_graph, 'dataframe': a_json_dataframe}).call(visualization)
* will fill the variables _data_graph and _data_dataframe.
*
*/
var matta_barchart = function() {
"use strict";
var __fill_data__ = function(__data__) {
if (__data__.hasOwnProperty('dataframe')) {
func_barchart.dataframe(__data__.dataframe);
} else {
func_barchart.dataframe(null);
}
};
var func_barchart = function (selection) {
console.log('selection', selection);
var _vis_width = _width - _padding.left - _padding.right;
var _vis_height = _height - _padding.top - _padding.bottom;
selection.each(function(__data__) {
__fill_data__(__data__);
var container = null;
var figure_dom_element = this;
var container_legends = null;
if (d3.select(this).select('svg.barchart-container').empty()) {
var svg = d3.select(this).append('svg')
.attr('width', _width)
.attr('height', _height)
.attr('class', 'barchart-container');
container = svg.append('g')
.classed('barchart-container', true)
.attr('transform', 'translate(' + _padding.left + ',' + _padding.top + ')');
container_legends = svg.append('g')
.classed('barchart-legends', true)
.attr('transform', 'translate(' + _padding.left + ',' + _padding.top + ')');
} else {
container = d3.select(this).select('svg.barchart-container');
}
console.log('container', container.node());
var x = d3.scale.ordinal()
.rangeRoundBands([0, _vis_width], .1);
var y = d3.scale.linear()
.range([_vis_height, 0]);
if (_y_label == null) {
_y_label = _y;
}
x.domain(_data_dataframe.map(function(d) { return d[_x]; }));
y.domain([0, d3.max(_data_dataframe, function(d) { return d[_y]; })]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
container.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + _vis_height + ")")
.call(xAxis);
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
if (_y_axis_ticks != null) {
yAxis.ticks(_y_axis_ticks);
}
var y_label = container.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text");
if (_rotate_label) {
y_label.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end");
} else {
y_label
.attr("y", 6)
.attr('x', 12)
.attr("dy", ".71em")
.style("text-anchor", "start");
}
y_label.text(_y_label);
_bar_color_update_scale_func(_data_dataframe);
var bar = container.selectAll(".bar")
.data(_data_dataframe);
bar.enter().append('rect').classed('bar', true);
bar.exit().remove();
bar.attr("x", function(d) { return x(d[_x]); })
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d[_y]); })
.attr("height", function(d) { return _vis_height - y(d[_y]); })
.attr('fill', _bar_color);
});
};
var _data_dataframe = null;
func_barchart.dataframe = function(__) {
if (arguments.length) {
_data_dataframe = __;
console.log('DATA dataframe', _data_dataframe);
return func_barchart;
}
return _data_dataframe;
};
var active_legends = [];
var _bar_color = null;
var _bar_color_scale = null;
var _bar_color_scale_locked = false;
var _bar_color_update_scale_func = d3.functor(null);
func_barchart.bar_color_scale_locked = function(__) {
/**
* If bar_color's color scale is locked, then barchart will not automatically update it
* before rendering. Useful to set the scale parameters from outside, or to maintain
* coherent scaling between succesive renderings.
*/
if (arguments.length) {
_bar_color_scale_locked = __;
console.log('set bar_color_scale_locked', _bar_color_scale_locked);
return func_barchart;
}
return _bar_color_scale_locked;
};
func_barchart.bar_color_scale = function() {
/**
* Returns the color scale for bar_color.
*/
return _bar_color_scale;
};
var _bar_color_value = "steelblue";
// to the outside, this function sets/gets the variable we use
func_barchart.bar_color = function(__) {
if (arguments.length) {
//TODO: consider the case when the value is fixed, not a variable
_bar_color_value = __;
return func_barchart;
}
return _bar_color_value;
};
// {u'domain': 'null', 'scale': 'null', 'palette': 'null', 'value': '"steelblue"', u'n_colors': '6', 'legend': 'false'}
// TODO: create get/setters for these variables
var _bar_color_palette = null;
var _bar_color_domain = null;
var _bar_color_scale_type = null;
var _bar_color_show_legend = false;
var _bar_color_legend = null;
var _bar_color_legend_container = null;
if (_bar_color_palette !== null) {
if (_bar_color_scale_type === 'threshold' || _bar_color_scale_type === 'quantize') {
_bar_color_scale = d3.scale.quantize().range(_bar_color_palette);
} else if (_bar_color_scale_type === 'ordinal') {
_bar_color_scale = d3.scale.ordinal().range(_bar_color_palette);
} else {
throw 'bar_color: Undefined color scale null.';
}
if (_bar_color_domain !== null) {
// if manually specified, we lock the scale
_bar_color_scale.domain(_bar_color_domain);
_bar_color_scale_locked = true;
}
_bar_color_update_scale_func = function(data) {
// updates the domain before draw
if (_bar_color_scale_locked) {
return;
}
_bar_color_scale.domain(
_bar_color_scale_type === 'threshold' || _bar_color_scale_type === 'quantize' ?
d3.extent(data, function(d) { return matta.get(d, _bar_color_value); }) :
d3.set(data.map(function (d) { return matta.get(d, _bar_color_value); })).values().sort()
);
console.log('bar_color scale range', _bar_color_scale.range());
console.log('bar_color scale domain', _bar_color_scale.domain());
};
_bar_color = function(d) {
//console.log('_bar_color', d, _bar_color_value, matta.get(d, _bar_color_value), _bar_color_scale(matta.get(d, _bar_color_value)));
return _bar_color_scale(matta.get(d, _bar_color_value));
};
console.log('bar_color show legend', _bar_color_show_legend);
// we can create the legend if desired
if (_bar_color_show_legend) {
_bar_color_legend = matta.legend.color()
.useClass(false)
.scale(_bar_color_scale)
// TODO: this should be automatic or a colorable option
//.labelFormat(d3.format('.3f'))
.title(_bar_color_value);
_bar_color_legend['variable'] = 'bar_color';
active_legends.push(_bar_color_legend);
console.log('bar_color legend', _bar_color_legend);
}
} else {
_bar_color = d3.functor(_bar_color_value !== null ? _bar_color_value : 'none');
}
// TODO: make a more flexible system.
// TODO: Allow "outer", "middle" and "center"
var allowed_locations = [['upper', 'right'], ['lower', 'right'], ['lower', 'left'], ['upper', 'left']];
var draw_legends = function(container_legends, width, height) {
/**
* This function draws the current legends into the specified container.
*/
var legend = container_legends.selectAll('g.matta-legend')
.data(active_legends, function(d) { return d['variable']; });
legend.enter()
.append('g')
.attr('class', function(d) { return 'matta-legend'; });
legend.exit()
.remove();
legend.each(function(d, i) {
console.log('each legend', d, this);
var self = d3.select(this);
self.call(d);
var bbox = self.node().getBBox();
console.log('bbox', bbox);
// hack to avoid problems with too many legends.
var location = allowed_locations[i % allowed_locations.length];
console.log('location', location);
var pos_y = location[0] === 'upper' ? 15 : height - 15 - bbox.height;
var pos_x = location[1] === 'left' ? 15 : width - 15 - bbox.width;
console.log(pos_x, pos_y);
self.attr('transform', 'translate(' + [pos_x, pos_y] + ')');
});
};
var _y_label = null;
func_barchart.y_label = function(__) {
if (arguments.length) {
_y_label = __;
console.log('set y_label', _y_label);
return func_barchart;
}
return _y_label;
};
var _y_axis_ticks = 10;
func_barchart.y_axis_ticks = function(__) {
if (arguments.length) {
_y_axis_ticks = __;
console.log('set y_axis_ticks', _y_axis_ticks);
return func_barchart;
}
return _y_axis_ticks;
};
var _height = 500;
func_barchart.height = function(__) {
if (arguments.length) {
_height = __;
console.log('set height', _height);
return func_barchart;
}
return _height;
};
var _padding = {"top": 20, "right": 30, "left": 30, "bottom": 30};
func_barchart.padding = function(__) {
if (arguments.length) {
_padding = __;
console.log('set padding', _padding);
return func_barchart;
}
return _padding;
};
var _width = 960;
func_barchart.width = function(__) {
if (arguments.length) {
_width = __;
console.log('set width', _width);
return func_barchart;
}
return _width;
};
var _rotate_label = true;
func_barchart.rotate_label = function(__) {
if (arguments.length) {
_rotate_label = __;
console.log('set rotate_label', _rotate_label);
return func_barchart;
}
return _rotate_label;
};
var _y = "frequency";
func_barchart.y = function(__) {
if (arguments.length) {
_y = __;
console.log('set y', _y);
return func_barchart;
}
return _y;
};
var _x = "letter";
func_barchart.x = function(__) {
if (arguments.length) {
_x = __;
console.log('set x', _x);
return func_barchart;
}
return _x;
};
return func_barchart;
};
return matta_barchart;
});
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