StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
41 lines
825 B
41 lines
825 B
4 years ago
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'use strict'
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var toPX = require('to-px')
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module.exports = mouseWheelListen
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function mouseWheelListen(element, callback, noScroll) {
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if(typeof element === 'function') {
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noScroll = !!callback
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callback = element
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element = window
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}
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var lineHeight = toPX('ex', element)
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var listener = function(ev) {
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if(noScroll) {
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ev.preventDefault()
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}
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var dx = ev.deltaX || 0
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var dy = ev.deltaY || 0
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var dz = ev.deltaZ || 0
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var mode = ev.deltaMode
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var scale = 1
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switch(mode) {
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case 1:
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scale = lineHeight
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break
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case 2:
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scale = window.innerHeight
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break
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}
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dx *= scale
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dy *= scale
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dz *= scale
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if(dx || dy || dz) {
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return callback(dx, dy, dz, ev)
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}
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}
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element.addEventListener('wheel', listener)
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return listener
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}
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