dxf-parser.js

! function(e, a) {
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        type: a.value,
        vertices: []
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        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
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      }
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        scale: 1,
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          case 7:
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          case 10:
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          case 39:
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          case 40:
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          case 41:
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          case 50:
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          case 51:
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            break;
          case 70:
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            break;
          case 71:
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          case 72:
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          case 73:
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          case 74:
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            break;
          case 100:
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          case 210:
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          case 220:
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            break;
          case 230:
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            break;
          default:
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      for (t = {
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            t.center = c(e);
            break;
          case 40:
            t.radius = a.value;
            break;
          case 50:
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            break;
          case 51:
            (r = Math.PI / 180 * a.value) < t.startAngle ? t.angleLength = r + 2 * Math.PI - t.startAngle : t.angleLength = r - t.startAngle, t.endAngle = r;
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
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          type: a.value
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            break;
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            break;
          case 12:
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            break;
          case 13:
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            break;
          case 14:
            t.linearOrAngularPoint2 = c(e);
            break;
          case 15:
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            break;
          case 16:
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          case 70:
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            break;
          case 71:
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          case 42:
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            break;
          case 1:
            t.text = a.value;
            break;
          case 50:
            t.angle = a.value;
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      var t;
      for (t = {
          type: a.value
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        "EOF" !== a && 0 !== a.code;) {
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            t.center = c(e);
            break;
          case 11:
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            break;
          case 40:
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          case 41:
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          case 42:
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            break;
          case 2:
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            break;
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        a = e.next()
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      return t
    }, f.ForEntityName = "INSERT", f.prototype.parseEntity = function(e, a) {
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      for (t = {
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        "EOF" !== a && 0 !== a.code;) {
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            break;
          case 41:
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            break;
          case 42:
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            break;
          case 43:
            t.zScale = a.value;
            break;
          case 10:
            t.position = c(e);
            break;
          case 50:
            t.rotation = a.value;
            break;
          case 70:
            t.columnCount = a.value;
            break;
          case 71:
            t.rowCount = a.value;
            break;
          case 44:
            t.columnSpacing = a.value;
            break;
          case 45:
            t.rowSpacing = a.value;
            break;
          case 210:
            t.extrusionDirection = c(e);
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
    }, k.ForEntityName = "LINE", k.prototype.parseEntity = function(e, a) {
      var t = {
        type: a.value,
        vertices: []
      };
      for (a = e.next();
        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
          case 10:
            t.vertices.unshift(c(e));
            break;
          case 11:
            t.vertices.push(c(e));
            break;
          case 210:
            t.extrusionDirection = c(e);
            break;
          case 100:
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
    }, y.ForEntityName = "LWPOLYLINE", y.prototype.parseEntity = function(e, a) {
      var t = {
          type: a.value,
          vertices: []
        },
        r = 0;
      for (a = e.next();
        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
          case 38:
            t.elevation = a.value;
            break;
          case 39:
            t.depth = a.value;
            break;
          case 70:
            t.shape = 1 == (1 & a.value), t.hasContinuousLinetypePattern = 128 == (128 & a.value);
            break;
          case 90:
            r = a.value;
            break;
          case 10:
            t.vertices = x(r, e);
            break;
          case 43:
            0 !== a.value && (t.width = a.value);
            break;
          case 210:
            t.extrusionDirectionX = a.value;
            break;
          case 220:
            t.extrusionDirectionY = a.value;
            break;
          case 230:
            t.extrusionDirectionZ = a.value;
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
    }, h.ForEntityName = "MTEXT", h.prototype.parseEntity = function(e, a) {
      var t = {
        type: a.value
      };
      for (a = e.next();
        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
          case 3:
          case 1:
            t.text ? t.text += a.value : t.text = a.value;
            break;
          case 10:
            t.position = c(e);
            break;
          case 40:
            t.height = a.value;
            break;
          case 41:
            t.width = a.value;
            break;
          case 50:
            t.rotation = a.value;
            break;
          case 71:
            t.attachmentPoint = a.value;
            break;
          case 72:
            t.drawingDirection = a.value;
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
    }, g.ForEntityName = "POINT", g.prototype.parseEntity = function(e, a) {
      var t;
      for (t = {
          type: a.value
        }, a = e.next();
        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
          case 10:
            t.position = c(e);
            break;
          case 39:
            t.thickness = a.value;
            break;
          case 210:
            t.extrusionDirection = c(e);
            break;
          case 100:
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
    }, E.ForEntityName = "VERTEX", E.prototype.parseEntity = function(e, a) {
      var t = {
        type: a.value
      };
      for (a = e.next();
        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
          case 10:
            t.x = a.value;
            break;
          case 20:
            t.y = a.value;
            break;
          case 30:
            t.z = a.value;
            break;
          case 40:
          case 41:
          case 42:
            0 != a.value && (t.bulge = a.value);
            break;
          case 70:
            t.curveFittingVertex = 0 != (1 & a.value), t.curveFitTangent = 0 != (2 & a.value), t.splineVertex = 0 != (8 & a.value), t.splineControlPoint = 0 != (16 & a.value), t.threeDPolylineVertex = 0 != (32 & a.value), t.threeDPolylineMesh = 0 != (64 & a.value), t.polyfaceMeshVertex = 0 != (128 & a.value);
            break;
          case 50:
          case 71:
            t.faceA = a.value;
            break;
          case 72:
            t.faceB = a.value;
            break;
          case 73:
            t.faceC = a.value;
            break;
          case 74:
            t.faceD = a.value;
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
    }, w.ForEntityName = "POLYLINE", w.prototype.parseEntity = function(e, a) {
      var t = {
        type: a.value,
        vertices: []
      };
      for (a = e.next();
        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
          case 10:
          case 20:
          case 30:
          case 39:
            t.thickness = a.value;
            break;
          case 40:
          case 41:
            break;
          case 70:
            t.shape = 0 != (1 & a.value), t.includesCurveFitVertices = 0 != (2 & a.value), t.includesSplineFitVertices = 0 != (4 & a.value), t.is3dPolyline = 0 != (8 & a.value), t.is3dPolygonMesh = 0 != (16 & a.value), t.is3dPolygonMeshClosed = 0 != (32 & a.value), t.isPolyfaceMesh = 0 != (64 & a.value), t.hasContinuousLinetypePattern = 0 != (128 & a.value);
            break;
          case 71:
          case 72:
          case 73:
          case 74:
          case 75:
            break;
          case 210:
            t.extrusionDirection = c(e);
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t.vertices = function(e, a) {
        var t = new E,
          r = [];
        for (; !e.isEOF();)
          if (0 === a.code)
            if ("VERTEX" === a.value) r.push(t.parseEntity(e, a)), a = e.lastReadGroup;
            else if ("SEQEND" === a.value) {
          m(e, a);
          break
        }
        return r
      }(e, a), t
    }, P.ForEntityName = "SOLID", P.prototype.parseEntity = function(e, a) {
      var t;
      for ((t = {
          type: a.value
        }).points = [], a = e.next();
        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
          case 10:
            t.points[0] = c(e);
            break;
          case 11:
            t.points[1] = c(e);
            break;
          case 12:
            t.points[2] = c(e);
            break;
          case 13:
            t.points[3] = c(e);
            break;
          case 210:
            t.extrusionDirection = c(e);
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
    }, F.ForEntityName = "SPLINE", F.prototype.parseEntity = function(e, a) {
      var t;
      for (t = {
          type: a.value
        }, a = e.next();
        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
          case 10:
            t.controlPoints || (t.controlPoints = []), t.controlPoints.push(c(e));
            break;
          case 11:
            t.fitPoints || (t.fitPoints = []), t.fitPoints.push(c(e));
            break;
          case 12:
            t.startTangent = c(e);
            break;
          case 13:
            t.endTangent = c(e);
            break;
          case 40:
            t.knotValues || (t.knotValues = []), t.knotValues.push(a.value);
            break;
          case 70:
            0 != (1 & a.value) && (t.closed = !0), 0 != (2 & a.value) && (t.periodic = !0), 0 != (4 & a.value) && (t.rational = !0), 0 != (8 & a.value) && (t.planar = !0), 0 != (16 & a.value) && (t.planar = !0, t.linear = !0);
            break;
          case 71:
            t.degreeOfSplineCurve = a.value;
            break;
          case 72:
            t.numberOfKnots = a.value;
            break;
          case 73:
            t.numberOfControlPoints = a.value;
            break;
          case 74:
            t.numberOfFitPoints = a.value;
            break;
          case 210:
            t.normalVector = c(e);
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
    }, O.ForEntityName = "TEXT", O.prototype.parseEntity = function(e, a) {
      var t;
      for (t = {
          type: a.value
        }, a = e.next();
        "EOF" !== a && 0 !== a.code;) {
        switch (a.code) {
          case 10:
            t.startPoint = c(e);
            break;
          case 11:
            t.endPoint = c(e);
            break;
          case 40:
            t.textHeight = a.value;
            break;
          case 41:
            t.xScale = a.value;
            break;
          case 50:
            t.rotation = a.value;
            break;
          case 1:
            t.text = a.value;
            break;
          case 72:
            t.halign = a.value;
            break;
          case 73:
            t.valign = a.value;
            break;
          default:
            i(t, a)
        }
        a = e.next()
      }
      return t
    };
    var N = t(0);

    function T() {
      var e;
      this._entityHandlers = {}, (e = this).registerEntityHandler(u), e.registerEntityHandler(l), e.registerEntityHandler(v), e.registerEntityHandler(d), e.registerEntityHandler(b), e.registerEntityHandler(p), e.registerEntityHandler(f), e.registerEntityHandler(k), e.registerEntityHandler(y), e.registerEntityHandler(h), e.registerEntityHandler(g), e.registerEntityHandler(w), e.registerEntityHandler(P), e.registerEntityHandler(F), e.registerEntityHandler(O)
    }

    function S(e) {
      N.debug("unhandled group " + L(e))
    }

    function L(e) {
      return e.code + ":" + e.value
    }
    N.setLevel("error"), T.prototype.parse = function(e, a) {
      throw new Error("read() not implemented. Use readSync()")
    }, T.prototype.registerEntityHandler = function(e) {
      var a = new e;
      this._entityHandlers[e.ForEntityName] = a
    }, T.prototype.parseSync = function(e) {
      return "string" == typeof e ? this._parse(e) : (console.error("Cannot read dxf source of type `" + typeof e), null)
    }, T.prototype.parseStream = function(e, a) {
      var t = "",
        r = this;
      e.on("data", function(e) {
        t += e
      }), e.on("end", function() {
        try {
          var e = r._parse(t)
        } catch (e) {
          return a(e)
        }
        a(null, e)
      }), e.on("error", function(e) {
        a(e)
      })
    }, T.prototype._parse = function(e) {
      var a, t, n = {},
        c = 0,
        i = e.split(/\r\n|\r|\n/g);
      if (!(a = new r(i)).hasNext()) throw Error("Empty file");
      var u = this,
        s = function(e, a) {
          return t.code === e && t.value === a
        },
        l = function() {
          var e = null,
            r = null,
            n = {};
          for (t = a.next();;) {
            if (s(0, "ENDSEC")) {
              e && (n[e] = r);
              break
            }
            9 === t.code ? (e && (n[e] = r), e = t.value) : 10 === t.code ? r = {
              x: t.value
            } : 20 === t.code ? r.y = t.value : 30 === t.code ? r.z = t.value : r = t.value, t = a.next()
          }
          return t = a.next(), n
        },
        v = function() {
          var e, r = {};
          for (t = a.next();
            "EOF" !== t.value && !s(0, "ENDSEC");) s(0, "BLOCK") ? (N.debug("block {"), e = d(), N.debug("}"), x(e), e.name ? r[e.name] = e : N.error('block with handle "' + e.handle + '" is missing a name.')) : (S(t), t = a.next());
          return r
        },
        d = function() {
          var e = {};
          for (t = a.next();
            "EOF" !== t.value;) {
            switch (t.code) {
              case 1:
                e.xrefPath = t.value, t = a.next();
                break;
              case 2:
                e.name = t.value, t = a.next();
                break;
              case 3:
                e.name2 = t.value, t = a.next();
                break;
              case 5:
                e.handle = t.value, t = a.next();
                break;
              case 8:
                e.layer = t.value, t = a.next();
                break;
              case 10:
                e.position = y(), t = a.next();
                break;
              case 67:
                e.paperSpace = !(!t.value || 1 != t.value), t = a.next();
                break;
              case 70:
                0 != t.value && (e.type = t.value), t = a.next();
                break;
              case 100:
                t = a.next();
                break;
              case 330:
                e.ownerHandle = t.value, t = a.next();
                break;
              case 0:
                if ("ENDBLK" == t.value) break;
                e.entities = k(!0);
                break;
              default:
                S(t), t = a.next()
            }
            if (s(0, "ENDBLK")) {
              t = a.next();
              break
            }
          }
          return e
        },
        b = function() {
          var e = {};
          for (t = a.next();
            "EOF" !== t.value && !s(0, "ENDSEC");) {
            s(0, "TABLE") ? (t = a.next(), f[t.value] ? (N.debug(t.value + " Table {"), e[f[t.value].tableName] = p(), N.debug("}")) : N.debug("Unhandled Table " + t.value)) : t = a.next()
          }
          return t = a.next(), e
        };
      var p = function() {
          var e, r = f[t.value],
            n = {},
            o = 0;
          for (t = a.next(); !s(0, "ENDTAB");) switch (t.code) {
            case 5:
              n.handle = t.value, t = a.next();
              break;
            case 330:
              n.ownerHandle = t.value, t = a.next();
              break;
            case 100:
              "AcDbSymbolTable" === t.value ? t = a.next() : (S(t), t = a.next());
              break;
            case 70:
              o = t.value, t = a.next();
              break;
            case 0:
              t.value === r.dxfSymbolName ? n[r.tableRecordsProperty] = r.parseTableRecords() : (S(t), t = a.next());
              break;
            default:
              S(t), t = a.next()
          }
          var c = n[r.tableRecordsProperty];
          return c && (c.constructor === Array ? e = c.length : "object" == typeof c && (e = Object.keys(c).length), o !== e && N.warn("Parsed " + e + " " + r.dxfSymbolName + "'s but expected " + o)), t = a.next(), n
        },
        f = {
          VPORT: {
            tableRecordsProperty: "viewPorts",
            tableName: "viewPort",
            dxfSymbolName: "VPORT",
            parseTableRecords: function() {
              var e = [],
                r = {};
              for (N.debug("ViewPort {"), t = a.next(); !s(0, "ENDTAB");) switch (t.code) {
                case 2:
                  r.name = t.value, t = a.next();
                  break;
                case 10:
                  r.lowerLeftCorner = y(), t = a.next();
                  break;
                case 11:
                  r.upperRightCorner = y(), t = a.next();
                  break;
                case 12:
                  r.center = y(), t = a.next();
                  break;
                case 13:
                  r.snapBasePoint = y(), t = a.next();
                  break;
                case 14:
                  r.snapSpacing = y(), t = a.next();
                  break;
                case 15:
                  r.gridSpacing = y(), t = a.next();
                  break;
                case 16:
                  r.viewDirectionFromTarget = y(), t = a.next();
                  break;
                case 17:
                  r.viewTarget = y(), t = a.next();
                  break;
                case 42:
                  r.lensLength = t.value, t = a.next();
                  break;
                case 43:
                  r.frontClippingPlane = t.value, t = a.next();
                  break;
                case 44:
                  r.backClippingPlane = t.value, t = a.next();
                  break;
                case 45:
                  r.viewHeight = t.value, t = a.next();
                  break;
                case 50:
                  r.snapRotationAngle = t.value, t = a.next();
                  break;
                case 51:
                  r.viewTwistAngle = t.value, t = a.next();
                  break;
                case 79:
                  r.orthographicType = t.value, t = a.next();
                  break;
                case 110:
                  r.ucsOrigin = y(), t = a.next();
                  break;
                case 111:
                  r.ucsXAxis = y(), t = a.next();
                  break;
                case 112:
                  r.ucsYAxis = y(), t = a.next();
                  break;
                case 110:
                  r.ucsOrigin = y(), t = a.next();
                  break;
                case 281:
                  r.renderMode = t.value, t = a.next();
                  break;
                case 281:
                  r.defaultLightingType = t.value, t = a.next();
                  break;
                case 292:
                  r.defaultLightingOn = t.value, t = a.next();
                  break;
                case 330:
                  r.ownerHandle = t.value, t = a.next();
                  break;
                case 63:
                case 421:
                case 431:
                  r.ambientColor = t.value, t = a.next();
                  break;
                case 0:
                  "VPORT" === t.value && (N.debug("}"), e.push(r), N.debug("ViewPort {"), r = {}, t = a.next());
                  break;
                default:
                  S(t), t = a.next()
              }
              return N.debug("}"), e.push(r), e
            }
          },
          LTYPE: {
            tableRecordsProperty: "lineTypes",
            tableName: "lineType",
            dxfSymbolName: "LTYPE",
            parseTableRecords: function() {
              var e, r, n = {},
                o = {};
              for (N.debug("LType {"), t = a.next(); !s(0, "ENDTAB");) switch (t.code) {
                case 2:
                  o.name = t.value, e = t.value, t = a.next();
                  break;
                case 3:
                  o.description = t.value, t = a.next();
                  break;
                case 73:
                  (r = t.value) > 0 && (o.pattern = []), t = a.next();
                  break;
                case 40:
                  o.patternLength = t.value, t = a.next();
                  break;
                case 49:
                  o.pattern.push(t.value), t = a.next();
                  break;
                case 0:
                  N.debug("}"), r > 0 && r !== o.pattern.length && N.warn("lengths do not match on LTYPE pattern"), n[e] = o, o = {}, N.debug("LType {"), t = a.next();
                  break;
                default:
                  t = a.next()
              }
              return N.debug("}"), n[e] = o, n
            }
          },
          LAYER: {
            tableRecordsProperty: "layers",
            tableName: "layer",
            dxfSymbolName: "LAYER",
            parseTableRecords: function() {
              var e, r, n = {},
                c = {};
              for (N.debug("Layer {"), t = a.next(); !s(0, "ENDTAB");) switch (t.code) {
                case 2:
                  c.name = t.value, e = t.value, t = a.next();
                  break;
                case 62:
                  c.visible = t.value >= 0, c.colorIndex = Math.abs(t.value), c.color = (r = c.colorIndex, o[r]), t = a.next();
                  break;
                case 70:
                  c.frozen = 0 != (1 & t.value) || 0 != (2 & t.value), t = a.next();
                  break;
                case 0:
                  "LAYER" === t.value && (N.debug("}"), n[e] = c, N.debug("Layer {"), c = {}, e = void 0, t = a.next());
                  break;
                default:
                  S(t), t = a.next()
              }
              return N.debug("}"), n[e] = c, n
            }
          }
        },
        k = function(e) {
          var r = [],
            n = e ? "ENDBLK" : "ENDSEC";
          for (e || (t = a.next());;)
            if (0 === t.code) {
              if (t.value === n) break;
              var o, c = u._entityHandlers[t.value];
              if (null == c) {
                N.warn("Unhandled entity " + t.value), t = a.next();
                continue
              }
              N.debug(t.value + " {"), o = c.parseEntity(a, t), t = a.lastReadGroup, N.debug("}"), x(o), r.push(o)
            } else t = a.next();
          return "ENDSEC" == n && (t = a.next()), r
        },
        y = function() {
          var e = {},
            r = t.code;
          if (e.x = t.value, r += 10, (t = a.next()).code != r) throw new Error("Expected code for point value to be " + r + " but got " + t.code + ".");
          return e.y = t.value, r += 10, (t = a.next()).code != r ? (a.rewind(), e) : (e.z = t.value, e)
        },
        x = function(e) {
          if (!e) throw new TypeError("entity cannot be undefined or null");
          e.handle || (e.handle = c++)
        };
      return function() {
        for (t = a.next(); !a.isEOF();)
          if (0 === t.code && "SECTION" === t.value) {
            if (2 !== (t = a.next()).code) {
              console.error("Unexpected code %s after 0:SECTION", L(t)), t = a.next();
              continue
            }
            "HEADER" === t.value ? (N.debug("> HEADER"), n.header = l(), N.debug("<")) : "BLOCKS" === t.value ? (N.debug("> BLOCKS"), n.blocks = v(), N.debug("<")) : "ENTITIES" === t.value ? (N.debug("> ENTITIES"), n.entities = k(!1), N.debug("<")) : "TABLES" === t.value ? (N.debug("> TABLES"), n.tables = b(), N.debug("<")) : "EOF" === t.value ? N.debug("EOF") : N.warn("Skipping section '%s'", t.value)
          } else t = a.next()
      }(), n
    };
    a.default = T
  }]).default
});