57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
const { vt2jscad } = require('./vt2jscad')
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function deserialize (obj, fn, options) { // http://en.wikipedia.org/wiki/Wavefront_.obj_file
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const defaults = {version: '0.0.0'}
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options = Object.assign({}, defaults, options)
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const {version} = options
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var l = obj.split(/\n/)
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var v = []
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var f = []
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for (var i = 0; i < l.length; i++) {
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var s = l[i]
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var a = s.split(/\s+/)
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if (a[0] === 'v') {
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v.push([a[1], a[2], a[3]])
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} else if (a[0] === 'f') {
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var fc = []
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var skip = 0
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for (var j = 1; j < a.length; j++) {
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var c = a[j]
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c = c.replace(/\/.*$/, '') // -- if coord# is '840/840' -> 840
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c-- // -- starts with 1, but we start with 0
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if (c >= v.length) {
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skip++
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}
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if (skip === 0) {
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fc.push(c)
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}
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}
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// fc.reverse();
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if (skip === 0) {
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f.push(fc)
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}
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} else {
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// vn vt and all others disregarded
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}
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}
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var src = ''
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src += '// producer: OpenJSCAD Compatibility (' + version + ') Wavefront OBJ Importer\n'
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src += '// date: ' + (new Date()) + '\n'
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src += '// source: ' + fn + '\n'
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src += '\n'
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// if(err) src += "// WARNING: import errors: "+err+" (some triangles might be misaligned or missing)\n";
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src += '// objects: 1\n// object #1: polygons: ' + f.length + '\n\n'
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src += 'function main() { return '
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src += vt2jscad(v, f)
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src += '; }'
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return src
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}
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module.exports = {
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deserialize
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}
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