openjscad

#!/usr/bin/nodejs

// OpenJsCad CLI interface, written by Rene K. Mueller <spiritdude@gmail.com>
// License: GPLv2
//
var version = '0.002';
//
// Description:
//   openjscad <file> [-o <stl>]
// e.g.
//   openjscad test.jscad                    
//   openjscad test.jscad -osomething.stl
//
// History:
// 2013/03/02: 0.002: proper installation of the dependencies (csg.js & openscad.js) so openjscad can be used properly
// 2013/03/01: 0.001: initial version, with base function from openscad.jscad
//

var lib = '/usr/local/lib/openjscad/';    // for now hard-coded

var fs = require('fs');
var vm = require('vm');
//include('./openscad.js');         // later

var CSG = require(lib+'./csg.js').CSG;
var CAG = require(lib+'./csg.js').CAG;  // any way to include CSG & CAG in once?

//require(lib+'./OpenJsCad/openjscad.js'); // make it a nodejs module (later)

// hint: https://github.com/substack/node-optimist
//       https://github.com/visionmedia/commander.js
//
//process.argv.forEach(function (val, index, array) {
//  console.log(index + ': ' + val);
//});

var args = process.argv.splice(2);

var inf = args[0];
var outf = inf;
outf = outf.replace(/\.[^\.]+$/,'.stl');

// output setting like openscad
if(args.length==2) {                         // -o<file.stl>
   outf = args[1];
   outf = outf.replace(/^\-o(\S+)$/,'$1');
} else if(args.length==3&&args[1]=='-o') {   // -o <file.stl>
   outf = args[2];
}

//console.log("reading "+inf);
var src = fs.readFileSync(inf);
var scad = fs.readFileSync(lib+'./openscad.js');

//var csg = sphere(1);          // -- basic test
//var csg = require(file).main; // -- treating .jscad as module? later perhaps

console.log("computing stl from "+inf+" to "+outf);
var csg = eval(src+"\n"+scad+"\nmain()\n");    // openscad.js + *.jscad + main()

//var stl = csg.fixTJunctions().toStlBinary();
var stl = csg.fixTJunctions().toStlString();

var s = fs.WriteStream(outf);
s.write(stl);


// -- helper functions 

function include(fn) {
   return eval(fs.readFileSync(fn));
}