stl-exporter/build/AsciiSerializer.js

Convert face-vertex, or polygon meshes to ascii and binary STLs

// Generated by CoffeeScript 1.12.7
(function() {
  var AsciiSerializer, createBeautifiedFacetString, createFacetString, stream,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  stream = require('stream');

  createFacetString = function(face) {
    var normal, vertices;
    normal = face.normal, vertices = face.vertices;
    return ("facet normal " + normal.x + " " + normal.y + " " + normal.z + "\n") + 'outer loop\n' + ("vertex " + vertices[0].x + " " + vertices[0].y + " " + vertices[0].z + "\n") + ("vertex " + vertices[1].x + " " + vertices[1].y + " " + vertices[1].z + "\n") + ("vertex " + vertices[2].x + " " + vertices[2].y + " " + vertices[2].z + "\n") + 'endloop\n' + 'endfacet\n';
  };

  createBeautifiedFacetString = function(face) {
    var normal, vertices;
    normal = face.normal, vertices = face.vertices;
    return ("facet normal " + normal.x + " " + normal.y + " " + normal.z + "\n") + '\touter loop\n' + ("\t\tvertex " + vertices[0].x + " " + vertices[0].y + " " + vertices[0].z + "\n") + ("\t\tvertex " + vertices[1].x + " " + vertices[1].y + " " + vertices[1].z + "\n") + ("\t\tvertex " + vertices[2].x + " " + vertices[2].y + " " + vertices[2].z + "\n") + '\tendloop\n' + 'endfacet\n';
  };

  AsciiSerializer = (function(superClass) {
    extend(AsciiSerializer, superClass);

    function AsciiSerializer(options) {
      var base, base1;
      this.options = options != null ? options : {};
      if ((base = this.options).writableObjectMode == null) {
        base.writableObjectMode = true;
      }
      if ((base1 = this.options).readableObjectMode == null) {
        base1.readableObjectMode = false;
      }
      AsciiSerializer.__super__.constructor.call(this, this.options);
      this.internalBuffer = [];
      this.name = '';
    }

    AsciiSerializer.prototype._flush = function(done) {
      this.push("endsolid " + this.name + "\n");
      return done();
    };

    AsciiSerializer.prototype._transform = function(chunk, encoding, done) {
      var data;
      this.internalBuffer = this.internalBuffer.concat(chunk.split('\n'));
      while (data = this.internalBuffer.shift()) {
        data = JSON.parse(data);
        if (data.hasOwnProperty('name')) {
          this.name = data.name;
          this.push("solid " + this.name + "\n");
          continue;
        }
        if (data.hasOwnProperty('vertices')) {
          if (this.options.beautify) {
            this.push(createBeautifiedFacetString(data));
          } else {
            this.push(createFacetString(data));
          }
        }
      }
      return done();
    };

    return AsciiSerializer;

  })(stream.Transform);

  module.exports = AsciiSerializer;

}).call(this);