71 lines
2.1 KiB
JavaScript
71 lines
2.1 KiB
JavaScript
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import { back as bellaBack } from '@freesewing/bella'
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import { hidePresets } from '@freesewing/core'
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import * as options from './options.mjs'
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export const backPoints = {
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name: 'noble.backPoints',
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from: bellaBack,
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hide: hidePresets.HIDE_ALL,
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options,
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draft: ({ points, Path, paths, options, snippets, log, part }) => {
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// Hide Bella paths
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for (const key of Object.keys(paths)) paths[key].hide()
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for (const i in snippets) delete snippets[i]
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delete points.bustDartLeft
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delete points.bustDartLeftCp
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points.shoulderDart = points.hps.shiftFractionTowards(
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points.shoulder,
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options.shoulderDartPosition
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)
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const aUp = points.dartTip.angle(points.shoulderDart)
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const aDown = points.dartBottomRight.angle(points.dartTip)
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const aDiff = Math.abs(aUp - aDown)
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// let dartCpAdjustment = Math.abs( options.shoulderDartPosition -.5) +.05
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const dartCpAdjustment = aDiff / 50
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points.shoulderDartCpUp = points.shoulderDart.shiftFractionTowards(
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points.dartTip,
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1 - dartCpAdjustment
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)
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points.shoulderDartCpDown = points.shoulderDart.shiftFractionTowards(
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points.dartTip,
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1 + dartCpAdjustment
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)
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const length = {
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i: new Path()
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.move(points.dartBottomLeft)
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.curve(points.dartLeftCp, points.shoulderDartCpDown, points.dartTip)
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.curve(points.shoulderDartCpUp, points.shoulderDart, points.shoulderDart)
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.length(),
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}
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let iteration = 0
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let diff = 0
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let angle = 0
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do {
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if (length.o) angle = diff * (length.o > length.i ? -0.1 : 0.1)
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points.dartBottomRight = points.dartBottomRight.rotate(angle, points.waistSide)
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length.o = new Path()
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.move(points.shoulderDart)
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.curve(points.shoulderDart, points.shoulderDartCpUp, points.dartTip)
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.curve(points.shoulderDartCpDown, points.dartRightCp, points.dartBottomRight)
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.length()
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diff = length.o - length.i
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iteration++
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} while (diff < -0.5 || (diff > 0.5 && iteration < 100))
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if (iteration >= 100) {
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log.error('Something is not quite right here!')
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}
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return part
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},
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}
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