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node-step2stl.js
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node-step2stl.js
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var step2stl = require('./node-ffi.js');
var fs = require('fs');
exports.convert = function(readstream, writestream) {
var ramdisk = require('node-ramdisk')
var disk = ramdisk('my_ramdisk')
// create a ram disk with 200 MB
disk.create(200, function (err, mount) {
if (err) {
console.log(err);
} else {
console.log(mount);
var stepfile = mount+"/step";
var stlfile = mount+"/stl";
// write the readstream to ramdisk
var stepstream = fs.createWriteStream(stepfile);
stepstream.on('finish', function() {
// convert step in ramdisk to stl
console.log("convert");
step2stl.step2stl.step2stl(stepfile, stlfile);
// read stl into writestream
console.log("read stl");
var stlstream = fs.createReadStream(stlfile);
stlstream.on('end', function() {
console.log("delete");
disk.delete(mount);
});
stlstream.pipe(writestream);
});
readstream.pipe(stepstream);
}
});
};