1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | 1 1 1 1 1 1 1 1 1 1 1 1 36 1 1 36 2 2 4 4 36 36 36 36 36 36 8 36 36 36 4 36 8 8 4 8 36 37 36 6 6 30 30 30 28 30 27 30 36 | 'use strict'; var summary = module.exports = require('datalib/src/stats').summary; require('../globals'); /** * Module for compiling Vega-lite spec into Vega spec. */ var compiler = module.exports = {}; var Encoding = require('../Encoding'), axis = compiler.axis = require('./axis'), legend = compiler.legend = require('./legend'), marks = compiler.marks = require('./marks'), scale = compiler.scale = require('./scale'); compiler.data = require('./data'); compiler.facet = require('./facet'); compiler.layout = require('./layout'); compiler.stack = require('./stack'); compiler.style = require('./style'); compiler.subfacet = require('./subfacet'); compiler.time = require('./time'); compiler.compile = function (spec, stats, theme) { return compiler.compileEncoding(Encoding.fromSpec(spec, theme), stats); }; compiler.shorthand = function (shorthand, stats, config, theme) { return compiler.compileEncoding(Encoding.fromShorthand(shorthand, config, theme), stats); }; /** * Create a Vega specification from a Vega-lite Encoding object. */ compiler.compileEncoding = function (encoding, stats) { // no need to pass stats if you pass in the data if (!stats) { Eif (encoding.hasValues()) { stats = summary(encoding.data().values).reduce(function(s, p) { s[p.field] = p; return s; }, {}); } else { console.error('No stats provided and data is not embedded.'); } } var layout = compiler.layout(encoding, stats); var spec = { width: layout.width, height: layout.height, padding: 'auto', // FIXME(#514): eliminate stats data: compiler.data(encoding, stats), // global scales contains only time unit scales scales: compiler.time.scales(encoding), marks: [{ name: 'cell', type: 'group', properties: { enter: { width: layout.cellWidth ? {value: layout.cellWidth} : {field: {group: 'width'}}, height: layout.cellHeight ? {value: layout.cellHeight} : {field: {group: 'height'}} } } }] }; var group = spec.marks[0]; // marks var style = compiler.style(encoding, stats), mdefs = group.marks = marks.def(encoding, layout, style, stats), mdef = mdefs[mdefs.length - 1]; // TODO: remove this dirty hack by refactoring the whole flow var stack = encoding.stack(); if (stack) { // modify mdef.{from,properties} compiler.stack(encoding, mdef, stack); } var lineType = marks[encoding.marktype()].line; // handle subfacets var details = encoding.details(); if (details.length > 0 && lineType) { //subfacet to group stack / line together in one group compiler.subfacet(group, mdef, details, encoding); } // auto-sort line/area values if (lineType && encoding.config('autoSortLine')) { var f = (encoding.isMeasure(X) && encoding.isDimension(Y)) ? Y : X; if (!mdef.from) { mdef.from = {}; } // TODO: why - ? mdef.from.transform = [{type: 'sort', by: '-' + encoding.fieldRef(f)}]; } // get a flattened list of all scale names that are used in the vl spec var singleScaleNames = [].concat.apply([], mdefs.map(function(markProps) { return scale.names(markProps.properties.update); })); // Small Multiples if (encoding.has(ROW) || encoding.has(COL)) { spec = compiler.facet(group, encoding, layout, spec, singleScaleNames, stats); spec.legends = legend.defs(encoding, style); } else { group.scales = scale.defs(singleScaleNames, encoding, layout, stats); group.axes = []; if (encoding.has(X)) { group.axes.push(axis.def(X, encoding, layout, stats)); } if (encoding.has(Y)) { group.axes.push(axis.def(Y, encoding, layout, stats)); } group.legends = legend.defs(encoding, style); } return spec; }; |