65 lines
2.6 KiB
JavaScript
65 lines
2.6 KiB
JavaScript
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import { name, version } from '../package.json'
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export default {
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name: name,
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version: version,
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hooks: {
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preRender: function(svg) {
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if (svg.attributes.get('freesewing:plugin-gore') === false)
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svg.attributes.set('freesewing:plugin-gore', version)
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}
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},
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macros: {
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gore: function(so) {
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let from = so.from
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let goreNumber = so.goreNumber //number of gores for the complete sphere
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let radius = so.radius //radius of the sphere
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let prefix = so.prefix
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let extraLength = so.extraLength //the length of the straight section after a complete semisphere
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this.points[prefix + 'p1'] = from.shift(0, (radius * Math.PI) / 2 + extraLength)
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this.points[prefix + 'Cp1'] = this.points[prefix + 'p1'].shift(
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180 - 180 / goreNumber,
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radius / 2 / Math.cos(Math.PI / goreNumber)
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)
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this.points[prefix + 'p3'] = from.shift(90, (radius * Math.PI) / goreNumber)
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this.points[prefix + 'p2'] = this.points[prefix + 'p3'].shift(0, extraLength)
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this.points[prefix + 'Cp2'] = this.points[prefix + 'p2'].shift(
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0,
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(radius * (Math.PI - 2)) / 2
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)
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if (extraLength < 0) {
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//top curve used to calculate the new points if extraLength < 0
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this.paths.auxiliaryPath = new this.Path()
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.move(this.points[prefix + 'p1'])
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.curve(
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this.points[prefix + 'Cp1'],
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this.points[prefix + 'Cp2'],
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this.points[prefix + 'p2']
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)
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.setRender(false)
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this.points[prefix + 'p2'] = this.paths.auxiliaryPath.intersectsX(0)[0] //the new point p2 is the one in which the auxiliary curve intersects x=0
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this.paths.auxiliaryPath = this.paths.auxiliaryPath.split(this.points[prefix + 'p2'])[0] //the auxiliary curve is split
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this.points[prefix + 'Cp1'] = this.paths.auxiliaryPath.ops[1].cp1 //the new control points are those of the new curve
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this.points[prefix + 'Cp2'] = this.paths.auxiliaryPath.ops[1].cp2
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this.points[prefix + 'p3'] = this.points[prefix + 'p2'].clone()
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}
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//the seam path is generated
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this.paths[prefix + 'seam'] = new this.Path()
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.move(from)
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.line(this.points[prefix + 'p1'])
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.curve(this.points[prefix + 'Cp1'], this.points[prefix + 'Cp2'], this.points[prefix + 'p2'])
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.line(this.points[prefix + 'p3'])
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.line(from)
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.close()
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.attr('class', so.class ? so.class : '')
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if (typeof so.render !== 'undefined' && so.render) this.paths[prefix + 'seam'].render = true
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else this.paths[prefix + 'seam'].render = false
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}
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}
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}
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