StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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74 lines
1.9 KiB
74 lines
1.9 KiB
'use strict'
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var parseUnit = require('parse-unit')
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module.exports = toPX
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var PIXELS_PER_INCH = getSizeBrutal('in', document.body) // 96
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function getPropertyInPX(element, prop) {
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var parts = parseUnit(getComputedStyle(element).getPropertyValue(prop))
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return parts[0] * toPX(parts[1], element)
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}
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//This brutal hack is needed
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function getSizeBrutal(unit, element) {
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var testDIV = document.createElement('div')
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testDIV.style['height'] = '128' + unit
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element.appendChild(testDIV)
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var size = getPropertyInPX(testDIV, 'height') / 128
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element.removeChild(testDIV)
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return size
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}
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function toPX(str, element) {
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if (!str) return null
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element = element || document.body
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str = (str + '' || 'px').trim().toLowerCase()
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if(element === window || element === document) {
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element = document.body
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}
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switch(str) {
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case '%': //Ambiguous, not sure if we should use width or height
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return element.clientHeight / 100.0
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case 'ch':
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case 'ex':
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return getSizeBrutal(str, element)
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case 'em':
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return getPropertyInPX(element, 'font-size')
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case 'rem':
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return getPropertyInPX(document.body, 'font-size')
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case 'vw':
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return window.innerWidth/100
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case 'vh':
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return window.innerHeight/100
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case 'vmin':
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return Math.min(window.innerWidth, window.innerHeight) / 100
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case 'vmax':
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return Math.max(window.innerWidth, window.innerHeight) / 100
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case 'in':
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return PIXELS_PER_INCH
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case 'cm':
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return PIXELS_PER_INCH / 2.54
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case 'mm':
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return PIXELS_PER_INCH / 25.4
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case 'pt':
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return PIXELS_PER_INCH / 72
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case 'pc':
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return PIXELS_PER_INCH / 6
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case 'px':
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return 1
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}
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// detect number of units
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var parts = parseUnit(str)
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if (!isNaN(parts[0]) && parts[1]) {
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var px = toPX(parts[1], element)
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return typeof px === 'number' ? parts[0] * px : null
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}
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return null
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}
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