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converter.js
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converter.js
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const fs = require('fs')
const fsPromises = fs.promises
const XMLparser = require('./xmlParser.js')
const { countReset } = require('console')
const getRepresentation = require('./getRepresentation').getRepresentation
const svg2gcode = require('./svg2gcode').svg2gcode
const chalk = require('chalk')
class Converter {
constructor(settings) {
this.settings = settings
}
async convert() {
return new Promise((resolve, reject) => {
fs.readFile(this.settings.inputFile, 'utf8', (err, data) => {
if (err) {
console.error(err)
reject('error reading file')
return
}
let tree = XMLparser.XMLparse(data, { preserveAttributes: false, preserveDocumentNode: false })
// console.log(tree)
const treeView = tree.getTree()
const svgViewBox = tree.getTree().viewBox.split(' ')
// tree view can be splitted in several layers
const treeLayers = []
if (treeView.g.length) {
//multi export
for (let i = 0; i < treeView.g.length; i++) {
console.log('new layer detected, export seperately...')
let layer = Object.assign({}, treeView)
delete layer.g
layer.g = []
layer.g.push(treeView.g[i])
treeLayers.push(layer)
}
let gcodeStrings = []
for (let i = 0; i < treeLayers.length; i++) {
console.log(`[+] Getting XML representation on layer ${(i + 1).toString()} / ${treeLayers.length.toString()} ...`)
let XMLRepresentation = getRepresentation(treeLayers[i])
XMLRepresentation.viewBox = svgViewBox
// console.log('converting...', XMLRepresentation)
console.log('[+] Converting ...')
let gcodeString = svg2gcode(XMLRepresentation, this.settings)
console.log('[+] optimization ...')
gcodeString = this.removeDuplicatedLines(gcodeString)
console.log('[+] Conversion done !\n ---------------------------------------------------')
gcodeStrings.push(gcodeString)
}
resolve(gcodeStrings)
} else {
// single layer
let XMLRepresentation = getRepresentation(treeView.g)
XMLRepresentation.viewBox = svgViewBox
console.log('[+] Converting ...')
let gcode = svg2gcode(XMLRepresentation, this.settings)
console.log('[+] optimization ...')
gcode = this.removeDuplicatedLines(gcode)
console.log('[+] Conversion done !\n ---------------------------------------------------')
resolve([gcode])
}
})
})
}
removeDuplicatedLines(gcodestring) {
let tmp = gcodestring.split('\n').filter((item, pos, arr) => {
return pos === 0 || item != arr[pos - 1]
}).join('\n')
return tmp
}
writeOutputFile(outputFolder, gcodestring, indexLayer) {
indexLayer += 1
let file = outputFolder + this.settings.outputFile
let count = 1
while (fs.existsSync(file)) {
file = outputFolder + count.toString() + '-' + this.settings.outputFile
count++
}
console.log('[+] Writing Layer ' + indexLayer.toString() + ' into file ' + chalk.green(file))
fs.writeFile(file, gcodestring, function (err) {
if (err) throw err
})
console.log('[+] Layer ' + indexLayer.toString() + ' done ')
}
showStringifyGcode(gcodestring) {
console.log('Stringified GCODE :\n')
console.log(JSON.stringify(gcodestring))
console.log('done.')
}
}
module.exports = {
Converter: Converter
}