222 lines
8.8 KiB
JavaScript
222 lines
8.8 KiB
JavaScript
const prefix = 'mirroredOnFold'
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// types of path operations
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const opTypes = ['to', 'cp1', 'cp2']
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/**
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* The plugin to handle all business related to mirroring, rotating, and duplicating parts for the cutting layout
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* @param {string} material the material to generate a cutting layout for
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* @param {number} grainAngle the angle of the material's grain
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* @return {Object} the plugin
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*/
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export const cutLayoutPlugin = function (material, grainAngle) {
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return {
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hooks: {
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// after each part
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postPartDraft: (pattern) => {
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// get the part that's just been drafted
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const part = pattern.parts[pattern.activeSet][pattern.activePart]
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// if it's a duplicated cut part, the fabric part, or it's hidden, leave it alone
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if (pattern.activePart.startsWith('cut.') || pattern.activePart === 'fabric' || part.hidden)
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return
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// get this part's cutlist configuration
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let partCutlist = pattern.setStores[pattern.activeSet].get(['cutlist', pattern.activePart])
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// if there isn't one, we're done here
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if (!partCutlist) return
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// if the cutlist has materials but this isn't one of them
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// or it has no materials but this isn't the main fabric
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if (partCutlist.materials ? !partCutlist.materials[material] : material !== 'fabric') {
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// hide the part because it shouldn't be shown on this fabric
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part.hide()
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return
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}
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// get the cutlist configuration for this material
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const matCutConfig = partCutlist.materials?.[material]
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// if there's specific instructions for this material
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if (matCutConfig) {
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// get the config of the active part to be inherited by all duplicates
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const activePartConfig = pattern.config.parts[pattern.activePart]
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// hide the active part so that all others can inherit from it and be manipulated separately
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part.hide()
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// for each set of cutting instructions for this material
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matCutConfig.forEach(({ cut, identical, bias, ignoreOnFold }, i) => {
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// get the grain angle for the part for this set of instructions
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const cGrain = partCutlist.grain ? partCutlist.grain + (bias ? 45 : 0) : undefined
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// for each piece that should be cut
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for (let c = 0; c < cut; c++) {
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const dupPartName = `cut.${pattern.activePart}.${material}_${c + i + 1}`
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// make a new part that will follow these cutting instructions
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pattern.addPart({
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name: dupPartName,
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from: activePartConfig,
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draft: ({ part, macro }) => {
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// handle fold and grain for these cutting instructions
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macro('handleFoldAndGrain', {
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partCutlist,
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grainSpec: cGrain,
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ignoreOnFold,
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bias,
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})
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// if they shouldn't be identical, flip every other piece
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if (!identical && c % 2 === 1) macro('flip')
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return part
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},
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})
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}
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})
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}
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// if there wasn't a specific configuration, still make sure to handle fold and grain
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else {
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const { macro } = part.shorthand()
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macro('handleFoldAndGrain', { partCutlist, grainSpec: partCutlist.grain })
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}
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},
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},
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macros: {
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// handle mirroring on the fold and rotating to sit along the grain or bias
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handleFoldAndGrain: ({ partCutlist, grainSpec, ignoreOnFold, bias }, { points, macro }) => {
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// if the part has cutonfold instructions
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if (partCutlist.cutOnFold) {
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// if we're not meant to igore those instructions, mirror on the fold
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if (!ignoreOnFold) macro('mirrorOnFold', { fold: partCutlist.cutOnFold })
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// if we are meant to ignore those instructions, but there's a grainline
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else if (grainSpec !== undefined) {
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// replace the cutonfold with a grainline
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macro('grainline', { from: points.cutonfoldVia1, to: points.cutonfoldVia2 })
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macro('cutonfold', false)
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}
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}
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// if there's a grain angle, rotate the part to be along it
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if (grainSpec !== undefined)
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macro('rotateToGrain', { grainAngle, bias, partGrain: grainSpec })
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},
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// mirror the part across the line indicated by cutonfold
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mirrorOnFold: ({ fold }, { paths, snippets, utils, macro, points }) => {
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// get all the paths to mirror
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const mirrorPaths = []
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for (const p in paths) {
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// skip ones that are hidden
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if (!paths[p].hidden) mirrorPaths.push(paths[p])
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}
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// store all the points to mirror
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const mirrorPoints = []
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// store snippets by type so we can re-sprinkle later
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const snippetsByType = {}
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// for each snippet
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for (var s in snippets) {
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const snip = snippets[s]
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// don't mirror these ones
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if (['logo'].indexOf(snip.def) > -1) continue
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// get or make an array for this type of snippet
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snippetsByType[snip.def] = snippetsByType[snip.def] || []
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// put the anchor on the list to mirror
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mirrorPoints.push(snip.anchor)
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// then we have to find the name of that point so we can apply the snippet to its mirror
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for (var pName in points) {
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if (points[pName] === snip.anchor) {
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// add the name-to-be of the mirrored anchor to the list for resprinkling
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snippetsByType[snip.def].push(prefix + utils.capitalize(pName))
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break
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}
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}
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}
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// mirror
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let unnamed = 0
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macro('mirror', {
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paths: mirrorPaths,
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points: mirrorPoints,
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mirror: fold,
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prefix,
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nameFormat: () => {
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unnamed++
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return `${prefix}_${unnamed}`
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},
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})
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// sprinkle the snippets
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for (var def in snippetsByType) {
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macro('sprinkle', {
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snippet: def,
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on: snippetsByType[def],
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})
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}
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},
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/**
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* rotate the part so that it is oriented properly with regard to the fabric grain
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* if the part should be on the bias, this rotates the part to lie on the bias
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* while keeping the grainline annotation along the grain
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*/
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rotateToGrain: ({ partGrain, grainAngle, bias }, { paths, snippets, Point, points }) => {
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// if this part doesn't have a grain recorded, bail
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if (partGrain === undefined) return
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// the amount to rotate is the difference between this part's grain angle (as drafted) and the fabric's grain angle
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let toRotate = Math.abs(grainAngle - partGrain)
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// don't over rotate
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if (toRotate >= 180) toRotate -= 180
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// if there's no difference, don't rotate
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if (toRotate === 0) return
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// we'll pivot rotations along the grainline to point, with a fallback
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const pivot = points.grainlineTo || new Point(0, 0)
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// go through all the paths
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for (const pathName in paths) {
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const path = paths[pathName]
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// don't rotate hidden paths
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if (paths[pathName].hidden) continue
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// we want the grainline indicator to always go in the fabric grain direction
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// so if this part is on the bias and this path is the grainline indicator
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// we'll rotate it 45 degrees less than necessary
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let thisRotation = toRotate
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if (pathName === 'grainline' && bias) thisRotation -= 45
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// replace all the points in all the ops of this path with ones that have been rotated
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path.ops.forEach((op) => {
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opTypes.forEach((t) => {
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if (op[t]) op[t] = op[t].rotate(thisRotation, pivot)
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})
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})
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}
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// replace all snippet anchors with ones that have been rotated
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for (const snippetName in snippets) {
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snippets[snippetName].anchor = snippets[snippetName].anchor.rotate(toRotate, pivot)
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}
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// go through all the points
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for (const pointName in points) {
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const point = points[pointName]
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const pointAttrs = point.attributes
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// if it has attributes, we want to rotate it
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if (Object.keys(pointAttrs.list).length) {
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points[pointName] = point.rotate(toRotate, pivot)
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// title points need to be re-rotated around the top title point to avoid text collisions
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if (pointName.match(/_(title|exportDate)(?!Nr)/))
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points[pointName] = points[pointName].rotate(-toRotate, points.__titleNr)
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// put the attributes back onto the new point
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points[pointName].attributes = pointAttrs.clone()
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}
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}
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},
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},
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}
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}
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