108 lines
2.8 KiB
JavaScript
108 lines
2.8 KiB
JavaScript
/*
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## License
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Copyright (c) 2016 Z3 Development https://github.com/z3dev
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All code released under MIT license
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History:
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2016/10/15: 0.5.2: initial version
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Notes:
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1) All functions extend other objects in order to maintain namespaces.
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*/
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// import { CSG } from '@jscad/csg'
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const {CSG, CAG} = require('@jscad/csg')
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// //////////////////////////////////////////
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//
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// JSON (JavaScript Object Notation) is a lightweight data-interchange format
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// See http://json.org/
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//
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// //////////////////////////////////////////
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function toSourceCSGVertex (ver) {
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return 'new CSG.Vertex(new CSG.Vector3D(' + ver._x + ',' + ver._y + ',' + ver._z + '))'
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}
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// convert the give CSG object to JSCAD source
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function toSourceCSG (csg) {
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var code = ' var polygons = [];\n'
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csg.polygons.map(function (p) {
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code += ' poly = new CSG.Polygon([\n'
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for (var i = 0; i < p.vertices.length; i++) {
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code += ' ' + toSourceCSGVertex(p.vertices[i].pos) + ',\n'
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}
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code += ' ])'
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if (p.shared && p.shared.color && p.shared.color.length) {
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code += '.setColor(' + JSON.stringify(p.shared.color) + ');\n'
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} else {
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code += ';\n'
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}
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code += ' polygons.push(poly);\n'
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})
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code += ' return CSG.fromPolygons(polygons);\n'
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return code
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};
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function toSourceCAGVertex (ver) {
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return 'new CAG.Vertex(new CSG.Vector2D(' + ver.pos._x + ',' + ver.pos._y + '))'
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};
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function toSourceSide (side) {
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return 'new CAG.Side(' + toSourceCAGVertex(side.vertex0) + ',' + toSourceCAGVertex(side.vertex1) + ')'
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};
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// convert the give CAG object to JSCAD source
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function toSourceCAG (cag) {
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var code = ' var sides = [];\n'
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cag.sides.map(function (s) {
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code += ' sides.push(' + toSourceSide(s) + ');\n'
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})
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code += ' return CAG.fromSides(sides);\n'
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return code
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}
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// convert an anonymous CSG/CAG object to JSCAD source
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function toSource (obj) {
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if (obj.type && obj.type === 'csg') {
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var csg = CSG.fromObject(obj)
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return toSourceCSG(csg)
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}
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if (obj.type && obj.type === 'cag') {
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var cag = CAG.fromObject(obj)
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return toSourceCAG(cag)
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}
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return ''
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};
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//
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// deserialize the given JSON source and return a JSCAD script
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//
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// fn (optional) original filename of JSON source
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//
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function deserialize (src, fn, options) {
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fn = fn || 'amf'
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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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// convert the JSON into an anonymous object
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var obj = JSON.parse(src)
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// convert the internal objects to JSCAD code
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var code = ''
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code += '//\n'
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code += '// producer: OpenJSCAD.org ' + version + ' JSON Importer\n'
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code += '// date: ' + (new Date()) + '\n'
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code += '// source: ' + fn + '\n'
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code += '//\n'
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code += 'function main() {\n'
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code += toSource(obj)
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code += '};\n'
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return code
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};
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module.exports = {
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deserialize
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}
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