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Fullstack Portal Created by the HCMR for the Marine Strategy Framework Directive Program in order to cover demands and aspects considering extendability and maintainability
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msfd_portal_hcmr/public/js/tools/dxfParser/dxf-parser.js

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(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.DxfParser = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/**
* AutoCad files sometimes use an indexed color value between 1 and 255 inclusive.
* Each value corresponds to a color. index 1 is red, that is 16711680 or 0xFF0000.
* index 0 and 256, while included in this array, are actually reserved for inheritance
* values in AutoCad so they should not be used for index color lookups.
*/
module.exports = [
0,
16711680,
16776960,
65280,
65535,
255,
16711935,
16777215,
8421504,
12632256,
16711680,
16744319,
13369344,
13395558,
10027008,
10046540,
8323072,
8339263,
4980736,
4990502,
16727808,
16752511,
13382400,
13401958,
10036736,
10051404,
8331008,
8343359,
4985600,
4992806,
16744192,
16760703,
13395456,
13408614,
10046464,
10056268,
8339200,
8347455,
4990464,
4995366,
16760576,
16768895,
13408512,
13415014,
10056192,
10061132,
8347392,
8351551,
4995328,
4997670,
16776960,
16777087,
13421568,
13421670,
10000384,
10000460,
8355584,
8355647,
5000192,
5000230,
12582656,
14679935,
10079232,
11717734,
7510016,
8755276,
6258432,
7307071,
3755008,
4344870,
8388352,
12582783,
6736896,
10079334,
5019648,
7510092,
4161280,
6258495,
2509824,
3755046,
4194048,
10485631,
3394560,
8375398,
2529280,
6264908,
2064128,
5209919,
1264640,
3099686,
65280,
8388479,
52224,
6736998,
38912,
5019724,
32512,
4161343,
19456,
2509862,
65343,
8388511,
52275,
6737023,
38950,
5019743,
32543,
4161359,
19475,
2509871,
65407,
8388543,
52326,
6737049,
38988,
5019762,
32575,
4161375,
19494,
2509881,
65471,
8388575,
52377,
6737074,
39026,
5019781,
32607,
4161391,
19513,
2509890,
65535,
8388607,
52428,
6737100,
39064,
5019800,
32639,
4161407,
19532,
2509900,
49151,
8380415,
39372,
6730444,
29336,
5014936,
24447,
4157311,
14668,
2507340,
32767,
8372223,
26316,
6724044,
19608,
5010072,
16255,
4153215,
9804,
2505036,
16383,
8364031,
13260,
6717388,
9880,
5005208,
8063,
4149119,
4940,
2502476,
255,
8355839,
204,
6710988,
152,
5000344,
127,
4145023,
76,
2500172,
4129023,
10452991,
3342540,
8349388,
2490520,
6245528,
2031743,
5193599,
1245260,
3089996,
8323327,
12550143,
6684876,
10053324,
4980888,
7490712,
4128895,
6242175,
2490444,
3745356,
12517631,
14647295,
10027212,
11691724,
7471256,
8735896,
6226047,
7290751,
3735628,
4335180,
16711935,
16744447,
13369548,
13395660,
9961624,
9981080,
8323199,
8339327,
4980812,
4990540,
16711871,
16744415,
13369497,
13395634,
9961586,
9981061,
8323167,
8339311,
4980793,
4990530,
16711807,
16744383,
13369446,
13395609,
9961548,
9981042,
8323135,
8339295,
4980774,
4990521,
16711743,
16744351,
13369395,
13395583,
9961510,
9981023,
8323103,
8339279,
4980755,
4990511,
3355443,
5987163,
8684676,
11382189,
14079702,
16777215
];
},{}],2:[function(require,module,exports){
/**
* DxfArrayScanner
*
* Based off the AutoCad 2012 DXF Reference
* http://images.autodesk.com/adsk/files/autocad_2012_pdf_dxf-reference_enu.pdf
*
* Reads through an array representing lines of a dxf file. Takes an array and
* provides an easy interface to extract group code and value pairs.
* @param data - an array where each element represents a line in the dxf file
* @constructor
*/
function DxfArrayScanner(data) {
this._pointer = 0;
this._data = data;
this._eof = false;
}
/**
* Gets the next group (code, value) from the array. A group is two consecutive elements
* in the array. The first is the code, the second is the value.
* @returns {{code: Number}|*}
*/
DxfArrayScanner.prototype.next = function() {
var group;
if(!this.hasNext()) {
if(!this._eof)
throw new Error('Unexpected end of input: EOF group not read before end of file. Ended on code ' + this._data[this._pointer]);
else
throw new Error('Cannot call \'next\' after EOF group has been read');
}
group = {
code: parseInt(this._data[this._pointer])
};
this._pointer++;
group.value = parseGroupValue(group.code, this._data[this._pointer].trim());
this._pointer++;
if(group.code === 0 && group.value === 'EOF') this._eof = true;
this.lastReadGroup = group;
return group;
};
DxfArrayScanner.prototype.peek = function() {
if(!this.hasNext()) {
if(!this._eof)
throw new Error('Unexpected end of input: EOF group not read before end of file. Ended on code ' + this._data[this._pointer]);
else
throw new Error('Cannot call \'next\' after EOF group has been read');
}
var group = {
code: parseInt(this._data[this._pointer])
};
group.value = parseGroupValue(group.code, this._data[this._pointer + 1].trim());
return group;
};
DxfArrayScanner.prototype.rewind = function(numberOfGroups) {
numberOfGroups = numberOfGroups || 1;
this._pointer = this._pointer - numberOfGroups * 2;
};
/**
* Returns true if there is another code/value pair (2 elements in the array).
* @returns {boolean}
*/
DxfArrayScanner.prototype.hasNext = function() {
// Check if we have read EOF group code
if(this._eof) {
return false;
}
// We need to be sure there are two lines available
if(this._pointer > this._data.length - 2) {
return false;
}
return true;
};
/**
* Returns true if the scanner is at the end of the array
* @returns {boolean}
*/
DxfArrayScanner.prototype.isEOF = function() {
return this._eof;
};
/**
* Parse a value to its proper type.
* See pages 3 - 10 of the AutoCad DXF 2012 reference given at the top of this file
*
* @param code
* @param value
* @returns {*}
*/
function parseGroupValue(code, value) {
if(code <= 9) return value;
if(code >= 10 && code <= 59) return parseFloat(value);
if(code >= 60 && code <= 99) return parseInt(value);
if(code >= 100 && code <= 109) return value;
if(code >= 110 && code <= 149) return parseFloat(value);
if(code >= 160 && code <= 179) return parseInt(value);
if(code >= 210 && code <= 239) return parseFloat(value);
if(code >= 270 && code <= 289) return parseInt(value);
if(code >= 290 && code <= 299) return parseBoolean(value);
if(code >= 300 && code <= 369) return value;
if(code >= 370 && code <= 389) return parseInt(value);
if(code >= 390 && code <= 399) return value;
if(code >= 400 && code <= 409) return parseInt(value);
if(code >= 410 && code <= 419) return value;
if(code >= 420 && code <= 429) return parseInt(value);
if(code >= 430 && code <= 439) return value;
if(code >= 440 && code <= 459) return parseInt(value);
if(code >= 460 && code <= 469) return parseFloat(value);
if(code >= 470 && code <= 481) return value;
if(code === 999) return value;
if(code >= 1000 && code <= 1009) return value;
if(code >= 1010 && code <= 1059) return parseFloat(value);
if(code >= 1060 && code <= 1071) return parseInt(value);
console.log('WARNING: Group code does not have a defined type: %j', { code: code, value: value });
return value;
}
/**
* Parse a boolean according to a 1 or 0 value
* @param str
* @returns {boolean}
*/
function parseBoolean(str) {
if(str === '0') return false;
if(str === '1') return true;
throw TypeError('String \'' + str + '\' cannot be cast to Boolean type');
}
module.exports = DxfArrayScanner;
},{}],3:[function(require,module,exports){
var DxfArrayScanner = require('./DxfArrayScanner.js'),
AUTO_CAD_COLOR_INDEX = require('./AutoCadColorIndex');
var log = require('loglevel');
//log.setLevel('trace');
//log.setLevel('debug');
//log.setLevel('info');
//log.setLevel('warn');
log.setLevel('error');
//log.setLevel('silent');
function registerDefaultEntityHandlers(dxfParser) {
// Supported entities here (some entity code is still being refactored into this flow)
dxfParser.registerEntityHandler(require('./entities/3dface'));
dxfParser.registerEntityHandler(require('./entities/arc'));
dxfParser.registerEntityHandler(require('./entities/attdef'));
dxfParser.registerEntityHandler(require('./entities/circle'));
dxfParser.registerEntityHandler(require('./entities/dimension'));
dxfParser.registerEntityHandler(require('./entities/ellipse'));
dxfParser.registerEntityHandler(require('./entities/insert'));
dxfParser.registerEntityHandler(require('./entities/line'));
dxfParser.registerEntityHandler(require('./entities/lwpolyline'));
dxfParser.registerEntityHandler(require('./entities/mtext'));
dxfParser.registerEntityHandler(require('./entities/point'));
dxfParser.registerEntityHandler(require('./entities/polyline'));
dxfParser.registerEntityHandler(require('./entities/solid'));
dxfParser.registerEntityHandler(require('./entities/spline'));
dxfParser.registerEntityHandler(require('./entities/text'));
//dxfParser.registerEntityHandler(require('./entities/vertex'));
}
function DxfParser() {
this._entityHandlers = {};
registerDefaultEntityHandlers(this);
}
DxfParser.prototype.parse = function(source, done) {
throw new Error("read() not implemented. Use readSync()");
};
DxfParser.prototype.registerEntityHandler = function(handlerType) {
var instance = new handlerType();
this._entityHandlers[handlerType.ForEntityName] = instance;
}
DxfParser.prototype.parseSync = function(source) {
if(typeof(source) === 'string') {
return this._parse(source);
}else {
console.error('Cannot read dxf source of type `' + typeof(source));
return null;
}
};
DxfParser.prototype.parseStream = function(stream, done) {
var dxfString = "";
var self = this;
stream.on('data', onData);
stream.on('end', onEnd);
stream.on('error', onError);
function onData(chunk) {
dxfString += chunk;
}
function onEnd() {
try {
var dxf = self._parse(dxfString);
}catch(err) {
return done(err);
}
done(null, dxf);
}
function onError(err) {
done(err);
}
};
DxfParser.prototype._parse = function(dxfString) {
var scanner, curr, dxf = {}, lastHandle = 0;
var dxfLinesArray = dxfString.split(/\r\n|\r|\n/g);
scanner = new DxfArrayScanner(dxfLinesArray);
if(!scanner.hasNext()) throw Error('Empty file');
var self = this;
var parseAll = function() {
curr = scanner.next();
while(!scanner.isEOF()) {
if(curr.code === 0 && curr.value === 'SECTION') {
curr = scanner.next();
// Be sure we are reading a section code
if (curr.code !== 2) {
console.error('Unexpected code %s after 0:SECTION', debugCode(curr));
curr = scanner.next();
continue;
}
if (curr.value === 'HEADER') {
log.debug('> HEADER');
dxf.header = parseHeader();
log.debug('<');
} else if (curr.value === 'BLOCKS') {
log.debug('> BLOCKS');
dxf.blocks = parseBlocks();
log.debug('<');
} else if(curr.value === 'ENTITIES') {
log.debug('> ENTITIES');
dxf.entities = parseEntities(false);
log.debug('<');
} else if(curr.value === 'TABLES') {
log.debug('> TABLES');
dxf.tables = parseTables();
log.debug('<');
} else if(curr.value === 'EOF') {
log.debug('EOF');
} else {
log.warn('Skipping section \'%s\'', curr.value);
}
} else {
curr = scanner.next();
}
// If is a new section
}
};
var groupIs = function(code, value) {
return curr.code === code && curr.value === value;
};
/**
*
* @return {object} header
*/
var parseHeader = function() {
// interesting variables:
// $ACADVER, $VIEWDIR, $VIEWSIZE, $VIEWCTR, $TDCREATE, $TDUPDATE
// http://www.autodesk.com/techpubs/autocad/acadr14/dxf/header_section_al_u05_c.htm
// Also see VPORT table entries
var currVarName = null, currVarValue = null;
var header = {};
// loop through header variables
curr = scanner.next();
while(true) {
if(groupIs(0, 'ENDSEC')) {
if(currVarName) header[currVarName] = currVarValue;
break;
} else if(curr.code === 9) {
if(currVarName) header[currVarName] = currVarValue;
currVarName = curr.value;
// Filter here for particular variables we are interested in
} else {
if(curr.code === 10) {
currVarValue = { x: curr.value };
} else if(curr.code === 20) {
currVarValue.y = curr.value;
} else if(curr.code === 30) {
currVarValue.z = curr.value;
} else {
currVarValue = curr.value;
}
}
curr = scanner.next();
}
// console.log(util.inspect(header, { colors: true, depth: null }));
curr = scanner.next(); // swallow up ENDSEC
return header;
};
/**
*
*/
var parseBlocks = function() {
var blocks = {}, block;
curr = scanner.next();
while(curr.value !== 'EOF') {
if(groupIs(0, 'ENDSEC')) {
break;
}
if(groupIs(0, 'BLOCK')) {
log.debug('block {');
block = parseBlock();
log.debug('}');
ensureHandle(block);
if(!block.name)
log.error('block with handle "' + block.handle + '" is missing a name.');
else
blocks[block.name] = block;
} else {
logUnhandledGroup(curr);
curr = scanner.next();
}
}
return blocks;
};
var parseBlock = function() {
var block = {};
curr = scanner.next();
while(curr.value !== 'EOF') {
switch(curr.code) {
case 1:
block.xrefPath = curr.value;
curr = scanner.next();
break;
case 2:
block.name = curr.value;
curr = scanner.next();
break;
case 3:
block.name2 = curr.value;
curr = scanner.next();
break;
case 5:
block.handle = curr.value;
curr = scanner.next();
break;
case 8:
block.layer = curr.value;
curr = scanner.next();
break;
case 10:
block.position = parsePoint();
curr = scanner.next();
break;
case 67:
block.paperSpace = (curr.value && curr.value == 1) ? true : false;
curr = scanner.next();
break;
case 70:
if (curr.value != 0) {
//if(curr.value & BLOCK_ANONYMOUS_FLAG) console.log(' Anonymous block');
//if(curr.value & BLOCK_NON_CONSTANT_FLAG) console.log(' Non-constant attributes');
//if(curr.value & BLOCK_XREF_FLAG) console.log(' Is xref');
//if(curr.value & BLOCK_XREF_OVERLAY_FLAG) console.log(' Is xref overlay');
//if(curr.value & BLOCK_EXTERNALLY_DEPENDENT_FLAG) console.log(' Is externally dependent');
//if(curr.value & BLOCK_RESOLVED_OR_DEPENDENT_FLAG) console.log(' Is resolved xref or dependent of an xref');
//if(curr.value & BLOCK_REFERENCED_XREF) console.log(' This definition is a referenced xref');
block.type = curr.value;
}
curr = scanner.next();
break;
case 100:
// ignore class markers
curr = scanner.next();
break;
case 330:
block.ownerHandle = curr.value;
curr = scanner.next();
break;
case 0:
if(curr.value == 'ENDBLK')
break;
block.entities = parseEntities(true);
break;
default:
logUnhandledGroup(curr);
curr = scanner.next();
}
if(groupIs(0, 'ENDBLK')) {
curr = scanner.next();
break;
}
}
return block;
};
/**
* parseTables
* @return {Object} Object representing tables
*/
var parseTables = function() {
var tables = {};
curr = scanner.next();
while(curr.value !== 'EOF') {
if(groupIs(0, 'ENDSEC'))
break;
if(groupIs(0, 'TABLE')) {
curr = scanner.next();
var tableDefinition = tableDefinitions[curr.value];
if(tableDefinition) {
log.debug(curr.value + ' Table {');
tables[tableDefinitions[curr.value].tableName] = parseTable();
log.debug('}');
} else {
log.debug('Unhandled Table ' + curr.value);
}
} else {
// else ignored
curr = scanner.next();
}
}
curr = scanner.next();
return tables;
};
const END_OF_TABLE_VALUE = 'ENDTAB';
var parseTable = function() {
var tableDefinition = tableDefinitions[curr.value],
table = {},
expectedCount = 0,
actualCount;
curr = scanner.next();
while(!groupIs(0, END_OF_TABLE_VALUE)) {
switch(curr.code) {
case 5:
table.handle = curr.value;
curr = scanner.next();
break;
case 330:
table.ownerHandle = curr.value;
curr = scanner.next();
break;
case 100:
if(curr.value === 'AcDbSymbolTable') {
// ignore
curr = scanner.next();
}else{
logUnhandledGroup(curr);
curr = scanner.next();
}
break;
case 70:
expectedCount = curr.value;
curr = scanner.next();
break;
case 0:
if(curr.value === tableDefinition.dxfSymbolName) {
table[tableDefinition.tableRecordsProperty] = tableDefinition.parseTableRecords();
} else {
logUnhandledGroup(curr);
curr = scanner.next();
}
break;
default:
logUnhandledGroup(curr);
curr = scanner.next();
}
}
var tableRecords = table[tableDefinition.tableRecordsProperty];
if(tableRecords) {
if(tableRecords.constructor === Array){
actualCount = tableRecords.length;
} else if(typeof(tableRecords) === 'object') {
actualCount = Object.keys(tableRecords).length;
}
if(expectedCount !== actualCount) log.warn('Parsed ' + actualCount + ' ' + tableDefinition.dxfSymbolName + '\'s but expected ' + expectedCount);
}
curr = scanner.next();
return table;
};
var parseViewPortRecords = function() {
var viewPorts = [], // Multiple table entries may have the same name indicating a multiple viewport configuration
viewPort = {};
log.debug('ViewPort {');
curr = scanner.next();
while(!groupIs(0, END_OF_TABLE_VALUE)) {
switch(curr.code) {
case 2: // layer name
viewPort.name = curr.value;
curr = scanner.next();
break;
case 10:
viewPort.lowerLeftCorner = parsePoint();
curr = scanner.next();
break;
case 11:
viewPort.upperRightCorner = parsePoint();
curr = scanner.next();
break;
case 12:
viewPort.center = parsePoint();
curr = scanner.next();
break;
case 13:
viewPort.snapBasePoint = parsePoint();
curr = scanner.next();
break;
case 14:
viewPort.snapSpacing = parsePoint();
curr = scanner.next();
break;
case 15:
viewPort.gridSpacing = parsePoint();
curr = scanner.next();
break;
case 16:
viewPort.viewDirectionFromTarget = parsePoint();
curr = scanner.next();
break;
case 17:
viewPort.viewTarget = parsePoint();
curr = scanner.next();
break;
case 42:
viewPort.lensLength = curr.value;
curr = scanner.next();
break;
case 43:
viewPort.frontClippingPlane = curr.value;
curr = scanner.next();
break;
case 44:
viewPort.backClippingPlane = curr.value;
curr = scanner.next();
break;
case 45:
viewPort.viewHeight = curr.value;
curr = scanner.next();
break;
case 50:
viewPort.snapRotationAngle = curr.value;
curr = scanner.next();
break;
case 51:
viewPort.viewTwistAngle = curr.value;
curr = scanner.next();
break;
case 79:
viewPort.orthographicType = curr.value;
curr = scanner.next();
break;
case 110:
viewPort.ucsOrigin = parsePoint();
curr = scanner.next();
break;
case 111:
viewPort.ucsXAxis = parsePoint();
curr = scanner.next();
break;
case 112:
viewPort.ucsYAxis = parsePoint();
curr = scanner.next();
break;
case 110:
viewPort.ucsOrigin = parsePoint();
curr = scanner.next();
break;
case 281:
viewPort.renderMode = curr.value;
curr = scanner.next();
break;
case 281:
// 0 is one distant light, 1 is two distant lights
viewPort.defaultLightingType = curr.value;
curr = scanner.next();
break;
case 292:
viewPort.defaultLightingOn = curr.value;
curr = scanner.next();
break;
case 330:
viewPort.ownerHandle = curr.value;
curr = scanner.next();
break;
case 63:
case 421:
case 431:
viewPort.ambientColor = curr.value;
curr = scanner.next();
break;
case 0:
// New ViewPort
if(curr.value === 'VPORT') {
log.debug('}');
viewPorts.push(viewPort);
log.debug('ViewPort {');
viewPort = {};
curr = scanner.next();
}
break;
default:
logUnhandledGroup(curr);
curr = scanner.next();
break;
}
}
// Note: do not call scanner.next() here,
// parseTable() needs the current group
log.debug('}');
viewPorts.push(viewPort);
return viewPorts;
};
var parseLineTypes = function() {
var ltypes = {},
ltypeName,
ltype = {},
length;
log.debug('LType {');
curr = scanner.next();
while(!groupIs(0, 'ENDTAB')) {
switch(curr.code) {
case 2:
ltype.name = curr.value;
ltypeName = curr.value;
curr = scanner.next();
break;
case 3:
ltype.description = curr.value;
curr = scanner.next();
break;
case 73: // Number of elements for this line type (dots, dashes, spaces);
length = curr.value;
if(length > 0) ltype.pattern = [];
curr = scanner.next();
break;
case 40: // total pattern length
ltype.patternLength = curr.value;
curr = scanner.next();
break;
case 49:
ltype.pattern.push(curr.value);
curr = scanner.next();
break;
case 0:
log.debug('}');
if(length > 0 && length !== ltype.pattern.length) log.warn('lengths do not match on LTYPE pattern');
ltypes[ltypeName] = ltype;
ltype = {};
log.debug('LType {');
curr = scanner.next();
break;
default:
curr = scanner.next();
}
}
log.debug('}');
ltypes[ltypeName] = ltype;
return ltypes;
};
var parseLayers = function() {
var layers = {},
layerName,
layer = {};
log.debug('Layer {');
curr = scanner.next();
while(!groupIs(0, 'ENDTAB')) {
switch(curr.code) {
case 2: // layer name
layer.name = curr.value;
layerName = curr.value;
curr = scanner.next();
break;
case 62: // color, visibility
layer.visible = curr.value >= 0;
// TODO 0 and 256 are BYBLOCK and BYLAYER respectively. Need to handle these values for layers?.
layer.color = getAcadColor(Math.abs(curr.value));
curr = scanner.next();
break;
case 70: // frozen layer
layer.frozen = ((curr.value & 1) != 0 || (curr.value & 2) != 0);
curr = scanner.next();
break;
case 0:
// New Layer
if(curr.value === 'LAYER') {
log.debug('}');
layers[layerName] = layer;
log.debug('Layer {');
layer = {};
layerName = undefined;
curr = scanner.next();
}
break;
default:
logUnhandledGroup(curr);
curr = scanner.next();
break;
}
}
// Note: do not call scanner.next() here,
// parseLayerTable() needs the current group
log.debug('}');
layers[layerName] = layer;
return layers;
};
var tableDefinitions = {
VPORT: {
tableRecordsProperty: 'viewPorts',
tableName: 'viewPort',
dxfSymbolName: 'VPORT',
parseTableRecords: parseViewPortRecords
},
LTYPE: {
tableRecordsProperty: 'lineTypes',
tableName: 'lineType',
dxfSymbolName: 'LTYPE',
parseTableRecords: parseLineTypes
},
LAYER: {
tableRecordsProperty: 'layers',
tableName: 'layer',
dxfSymbolName: 'LAYER',
parseTableRecords: parseLayers
}
};
/**
* Is called after the parser first reads the 0:ENTITIES group. The scanner
* should be on the start of the first entity already.
* @return {Array} the resulting entities
*/
var parseEntities = function(forBlock) {
var entities = [];
var endingOnValue = forBlock ? 'ENDBLK' : 'ENDSEC';
if (!forBlock) {
curr = scanner.next();
}
while(true) {
if(curr.code === 0) {
if(curr.value === endingOnValue) {
break;
}
var entity;
var handler = self._entityHandlers[curr.value];
if(handler != null) {
log.debug(curr.value + ' {');
entity = handler.parseEntity(scanner, curr);
curr = scanner.lastReadGroup;
log.debug('}');
} else {
log.warn('Unhandled entity ' + curr.value);
curr = scanner.next();
continue;
}
ensureHandle(entity);
entities.push(entity);
} else {
// ignored lines from unsupported entity
curr = scanner.next();
}
}
if(endingOnValue == 'ENDSEC') curr = scanner.next(); // swallow up ENDSEC, but not ENDBLK
return entities;
};
/**
* Parses a 2D or 3D point, returning it as an object with x, y, and
* (sometimes) z property if it is 3D. It is assumed the current group
* is x of the point being read in, and scanner.next() will return the
* y. The parser will determine if there is a z point automatically.
* @return {Object} The 2D or 3D point as an object with x, y[, z]
*/
var parsePoint = function() {
var point = {},
code = curr.code;
point.x = curr.value;
code += 10;
curr = scanner.next();
if(curr.code != code)
throw new Error('Expected code for point value to be ' + code +
' but got ' + curr.code + '.');
point.y = curr.value;
code += 10;
curr = scanner.next();
if(curr.code != code)
{
scanner.rewind();
return point;
}
point.z = curr.value;
return point;
};
var ensureHandle = function(entity) {
if(!entity) throw new TypeError('entity cannot be undefined or null');
if(!entity.handle) entity.handle = lastHandle++;
};
parseAll();
return dxf;
};
function logUnhandledGroup(curr) {
log.debug('unhandled group ' + debugCode(curr));
}
function debugCode(curr) {
return curr.code + ':' + curr.value;
}
/**
* Returns the truecolor value of the given AutoCad color index value
* @return {Number} truecolor value as a number
*/
function getAcadColor(index) {
return AUTO_CAD_COLOR_INDEX[index];
}
const BLOCK_ANONYMOUS_FLAG = 1;
const BLOCK_NON_CONSTANT_FLAG = 2;
const BLOCK_XREF_FLAG = 4;
const BLOCK_XREF_OVERLAY_FLAG = 8;
const BLOCK_EXTERNALLY_DEPENDENT_FLAG = 16;
const BLOCK_RESOLVED_OR_DEPENDENT_FLAG = 32;
const BLOCK_REFERENCED_XREF = 64;
module.exports = DxfParser;
/* Notes */
// Code 6 of an entity indicates inheritance of properties (eg. color).
// BYBLOCK means inherits from block
// BYLAYER (default) mean inherits from layer
},{"./AutoCadColorIndex":1,"./DxfArrayScanner.js":2,"./entities/3dface":5,"./entities/arc":6,"./entities/attdef":7,"./entities/circle":8,"./entities/dimension":9,"./entities/ellipse":10,"./entities/insert":11,"./entities/line":12,"./entities/lwpolyline":13,"./entities/mtext":14,"./entities/point":15,"./entities/polyline":16,"./entities/solid":17,"./entities/spline":18,"./entities/text":19,"loglevel":21}],4:[function(require,module,exports){
var AUTO_CAD_COLOR_INDEX = require('./AutoCadColorIndex');
/**
* Returns the truecolor value of the given AutoCad color index value
* @return {Number} truecolor value as a number
*/
exports.getAcadColor = function(index) {
return AUTO_CAD_COLOR_INDEX[index];
}
var getAcadColor = exports.getAcadColor;
/**
* Parses the 2D or 3D coordinate, vector, or point. When complete,
* the scanner remains on the last group of the coordinate.
* @param {*} scanner
*/
exports.parsePoint = function(scanner) {
var point = {};
// Reread group for the first coordinate
scanner.rewind();
var curr = scanner.next();
code = curr.code;
point.x = curr.value;
code += 10;
curr = scanner.next();
if(curr.code != code)
throw new Error('Expected code for point value to be ' + code +
' but got ' + curr.code + '.');
point.y = curr.value;
code += 10;
curr = scanner.next();
if(curr.code != code)
{
// Only the x and y are specified. Don't read z.
scanner.rewind(); // Let the calling code advance off the point
return point;
}
point.z = curr.value;
return point;
};
/**
* Attempts to parse codes common to all entities. Returns true if the group
* was handled by this function.
* @param {*} entity - the entity currently being parsed
* @param {*} curr - the current group being parsed
*/
exports.checkCommonEntityProperties = function(entity, curr) {
switch(curr.code) {
case 0:
entity.type = curr.value;
break;
case 5:
entity.handle = curr.value;
break;
case 6:
entity.lineType = curr.value;
break;
case 8: // Layer name
entity.layer = curr.value;
break;
case 48:
entity.lineTypeScale = curr.value;
break;
case 60:
entity.visible = curr.value === 0;
break;
case 62: // Acad Index Color. 0 inherits ByBlock. 256 inherits ByLayer. Default is bylayer
entity.colorIndex = curr.value;
entity.color = getAcadColor(Math.abs(curr.value));
break;
case 67:
entity.inPaperSpace = curr.value !== 0;
break;
case 100:
//ignore
break;
case 330:
entity.ownerHandle = curr.value;
break;
case 347:
entity.materialObjectHandle = curr.value;
break;
case 370:
//From https://www.woutware.com/Forum/Topic/955/lineweight?returnUrl=%2FForum%2FUserPosts%3FuserId%3D478262319
// An integer representing 100th of mm, must be one of the following values:
// 0, 5, 9, 13, 15, 18, 20, 25, 30, 35, 40, 50, 53, 60, 70, 80, 90, 100, 106, 120, 140, 158, 200, 211.
// -3 = STANDARD, -2 = BYLAYER, -1 = BYBLOCK
entity.lineweight = curr.value;
break;
case 420: // TrueColor Color
entity.color = curr.value;
break;
case 1000:
entity.extendedData = entity.extendedData || {};
entity.extendedData.customStrings = entity.extendedData.customStrings || [];
entity.extendedData.customStrings.push(curr.value);
break;
case 1001:
entity.extendedData = entity.extendedData || {};
entity.extendedData.applicationName = curr.value;
break;
default:
return false;
}
return true;
};
},{"./AutoCadColorIndex":1}],5:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = '3DFACE';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity = { type: curr.value, vertices: [] };
curr = scanner.next();
while (curr !== 'EOF') {
if (curr.code === 0) break;
switch (curr.code) {
case 70: // 1 = Closed shape, 128 = plinegen?, 0 = default
entity.shape = ((curr.value & 1) === 1);
entity.hasContinuousLinetypePattern = ((curr.value & 128) === 128);
break;
case 10: // X coordinate of point
entity.vertices = parse3dFaceVertices(scanner, curr);
curr = scanner.lastReadGroup;
break;
default:
checkCommonEntityProperties(entity);
break;
}
curr = scanner.next();
}
return entity;
};
function parse3dFaceVertices(scanner, curr) {
var vertices = [],
i;
var vertexIsStarted = false;
var vertexIsFinished = false;
var verticesPer3dFace = 4; // there can be up to four vertices per face, although 3 is most used for TIN
for (i = 0; i <= verticesPer3dFace; i++) {
var vertex = {};
while (curr !== 'EOF') {
if (curr.code === 0 || vertexIsFinished) break;
switch (curr.code) {
case 10: // X0
case 11: // X1
case 12: // X2
case 13: // X3
if (vertexIsStarted) {
vertexIsFinished = true;
continue;
}
vertex.x = curr.value;
vertexIsStarted = true;
break;
case 20: // Y
case 21:
case 22:
case 23:
vertex.y = curr.value;
break;
case 30: // Z
case 31:
case 32:
case 33:
vertex.z = curr.value;
break;
default:
// it is possible to have entity codes after the vertices.
// So if code is not accounted for return to entity parser where it might be accounted for
return vertices;
continue;
}
curr = scanner.next();
}
// See https://groups.google.com/forum/#!topic/comp.cad.autocad/9gn8s5O_w6E
vertices.push(vertex);
vertexIsStarted = false;
vertexIsFinished = false;
}
scanner.rewind();
return vertices;
};
},{"../ParseHelpers":4}],6:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'ARC';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity, endAngle;
entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 10: // X coordinate of point
entity.center = helpers.parsePoint(scanner);
break;
case 40: // radius
entity.radius = curr.value;
break;
case 50: // start angle
entity.startAngle = Math.PI / 180 * curr.value;
break;
case 51: // end angle
entity.endAngle = Math.PI / 180 * curr.value;
entity.angleLength = entity.endAngle - entity.startAngle; // angleLength is deprecated
break;
default: // ignored attribute
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],7:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'ATTDEF';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity = {
type: curr.value,
scale: 1,
textStyle: 'STANDARD'
};
curr = scanner.next();
while (curr !== 'EOF') {
if (curr.code === 0) {
break;
}
switch(curr.code) {
case 1:
entity.text = curr.value;
break;
case 2:
entity.tag = curr.value;
break;
case 3:
entity.prompt = curr.value;
break;
case 7:
entity.textStyle = curr.value;
break;
case 10: // X coordinate of 'first alignment point'
entity.startPoint = helpers.parsePoint(scanner);
break;
case 11: // X coordinate of 'second alignment point'
entity.endPoint = helpers.parsePoint(scanner);
break;
case 39:
entity.thickness = curr.value;
break;
case 40:
entity.textHeight = curr.value;
break;
case 41:
entity.scale = curr.value;
break;
case 50:
entity.rotation = curr.value;
break;
case 51:
entity.obliqueAngle = curr.value;
break;
case 70:
entity.invisible = !!(curr.value & 0x01);
entity.constant = !!(curr.value & 0x02);
entity.verificationRequired = !!(curr.value & 0x04);
entity.preset = !!(curr.value & 0x08);
break;
case 71:
entity.backwards = !!(curr.value & 0x02);
entity.mirrored = !!(curr.value & 0x04);
break;
case 72:
// TODO: enum values?
entity.horizontalJustification = curr.value;
break;
case 73:
entity.fieldLength = curr.value;
break;
case 74:
// TODO: enum values?
entity.verticalJustification = curr.value;
break;
case 100:
break;
case 210:
entity.extrusionDirectionX = curr.value;
break;
case 220:
entity.extrusionDirectionY = curr.value;
break;
case 230:
entity.extrusionDirectionZ = curr.value;
break;
default:
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],8:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'CIRCLE';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity, endAngle;
entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 10: // X coordinate of point
entity.center = helpers.parsePoint(scanner);
break;
case 40: // radius
entity.radius = curr.value;
break;
case 50: // start angle
entity.startAngle = Math.PI / 180 * curr.value;
break;
case 51: // end angle
endAngle = Math.PI / 180 * curr.value;
if(endAngle < entity.startAngle)
entity.angleLength = endAngle + 2 * Math.PI - entity.startAngle;
else
entity.angleLength = endAngle - entity.startAngle;
entity.endAngle = endAngle;
break;
default: // ignored attribute
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],9:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'DIMENSION';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity;
entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 2: // Referenced block name
entity.block = curr.value;
break;
case 10: // X coordinate of 'first alignment point'
entity.anchorPoint = helpers.parsePoint(scanner);
break;
case 11:
entity.middleOfText = helpers.parsePoint(scanner);
break;
case 71: // 5 = Middle center
entity.attachmentPoint = curr.value;
break;
case 42: // Actual measurement
entity.actualMeasurement = curr.value;
break;
case 1: // Text entered by user explicitly
entity.text = curr.value;
break;
case 50: // Angle of rotated, horizontal, or vertical dimensions
entity.angle = curr.value;
break;
default: // check common entity attributes
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],10:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'ELLIPSE';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity;
entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 10:
entity.center = helpers.parsePoint(scanner);
break;
case 11:
entity.majorAxisEndPoint = helpers.parsePoint(scanner);
break;
case 40:
entity.axisRatio = curr.value;
break;
case 41:
entity.startAngle = curr.value;
break;
case 42:
entity.endAngle = curr.value;
break;
case 2:
entity.name = curr.value;
break;
default: // check common entity attributes
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],11:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'INSERT';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity;
entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 2:
entity.name = curr.value;
break;
case 41:
entity.xScale = curr.value;
break;
case 42:
entity.yScale = curr.value;
break;
case 43:
entity.zScale = curr.value;
break;
case 10:
entity.position = helpers.parsePoint(scanner);
break;
case 50:
entity.rotation = curr.value;
break;
case 70:
entity.columnCount = curr.value;
break;
case 71:
entity.rowCount = curr.value;
break;
case 44:
entity.columnSpacing = curr.value;
break;
case 45:
entity.rowSpacing = curr.value;
break;
case 210:
entity.extrusionDirection = helpers.parsePoint(scanner);
break;
default: // check common entity attributes
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],12:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'LINE';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity = { type: curr.value, vertices: [] };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 10: // X coordinate of point
entity.vertices.unshift(helpers.parsePoint(scanner));
break;
case 11:
entity.vertices.push(helpers.parsePoint(scanner));
break;
case 210:
entity.extrusionDirection = helpers.parsePoint(scanner);
break;
case 100:
break;
default:
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],13:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'LWPOLYLINE';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity = { type: curr.value, vertices: [] },
numberOfVertices = 0;
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 38:
entity.elevation = curr.value;
break;
case 39:
entity.depth = curr.value;
break;
case 70: // 1 = Closed shape, 128 = plinegen?, 0 = default
entity.shape = ((curr.value & 1) === 1);
entity.hasContinuousLinetypePattern = ((curr.value & 128) === 128);
break;
case 90:
numberOfVertices = curr.value;
break;
case 10: // X coordinate of point
entity.vertices = parseLWPolylineVertices(numberOfVertices, scanner);
break;
case 43:
if(curr.value !== 0) entity.width = curr.value;
break;
case 210:
entity.extrusionDirectionX = curr.value;
break;
case 220:
entity.extrusionDirectionY = curr.value;
break;
case 230:
entity.extrusionDirectionZ = curr.value;
break;
default:
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
function parseLWPolylineVertices(n, scanner) {
if(!n || n <= 0) throw Error('n must be greater than 0 verticies');
var vertices = [], i;
var vertexIsStarted = false;
var vertexIsFinished = false;
var curr = scanner.lastReadGroup;
for(i = 0; i < n; i++) {
var vertex = {};
while(curr !== 'EOF') {
if(curr.code === 0 || vertexIsFinished) break;
switch(curr.code) {
case 10: // X
if(vertexIsStarted) {
vertexIsFinished = true;
continue;
}
vertex.x = curr.value;
vertexIsStarted = true;
break;
case 20: // Y
vertex.y = curr.value;
break;
case 30: // Z
vertex.z = curr.value;
break;
case 40: // start width
vertex.startWidth = curr.value;
break;
case 41: // end width
vertex.endWidth = curr.value;
break;
case 42: // bulge
if(curr.value != 0) vertex.bulge = curr.value;
break;
default:
// if we do not hit known code return vertices. Code might belong to entity
if (vertexIsStarted) {
vertices.push(vertex);
}
return vertices;
}
curr = scanner.next();
}
// See https://groups.google.com/forum/#!topic/comp.cad.autocad/9gn8s5O_w6E
vertices.push(vertex);
vertexIsStarted = false;
vertexIsFinished = false;
}
scanner.rewind();
return vertices;
};
},{"../ParseHelpers":4}],14:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'MTEXT';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 1:
entity.text = curr.value;
break;
case 3:
entity.text += curr.value;
break;
case 10:
entity.position = helpers.parsePoint(scanner);
break;
case 40:
//Note: this is the text height
entity.height = curr.value;
break;
case 41:
entity.width = curr.value;
break;
case 50:
entity.rotation = curr.value;
break;
case 71:
entity.attachmentPoint = curr.value;
break;
case 72:
entity.drawingDirection = curr.value;
break;
default:
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],15:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'POINT';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity;
entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 10:
entity.position = helpers.parsePoint(scanner);
break;
case 39:
entity.thickness = curr.value;
break;
case 210:
entity.extrusionDirection = helpers.parsePoint(scanner);
break;
case 100:
break;
default: // check common entity attributes
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],16:[function(require,module,exports){
var helpers = require('../ParseHelpers');
var VertexParser = require('./vertex');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'POLYLINE';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity = { type: curr.value, vertices: [] };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 10: // always 0
case 20: // always 0
case 30: // elevation
case 39: // thickness
entity.thickness = curr.value;
break;
case 40: // start width
case 41: // end width
break;
case 70:
entity.shape = (curr.value & 1) !== 0;
entity.includesCurveFitVertices = (curr.value & 2) !== 0;
entity.includesSplineFitVertices = (curr.value & 4) !== 0;
entity.is3dPolyline = (curr.value & 8) !== 0;
entity.is3dPolygonMesh = (curr.value & 16) !== 0;
entity.is3dPolygonMeshClosed = (curr.value & 32) !== 0; // 32 = The polygon mesh is closed in the N direction
entity.isPolyfaceMesh = (curr.value & 64) !== 0;
entity.hasContinuousLinetypePattern = (curr.value & 128) !== 0;
break;
case 71: // Polygon mesh M vertex count
case 72: // Polygon mesh N vertex count
case 73: // Smooth surface M density
case 74: // Smooth surface N density
case 75: // Curves and smooth surface type
break;
case 210:
extrusionDirection = helpers.parsePoint(scanner);
break;
default:
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
entity.vertices = parsePolylineVertices(scanner, curr);
return entity;
};
function parsePolylineVertices(scanner, curr) {
var vertexParser = new VertexParser();
var vertices = [];
while (!scanner.isEOF()) {
if (curr.code === 0) {
if (curr.value === 'VERTEX') {
vertices.push(vertexParser.parseEntity(scanner, curr));
curr = scanner.lastReadGroup;
} else if (curr.value === 'SEQEND') {
parseSeqEnd(scanner, curr);
break;
}
}
}
return vertices;
};
function parseSeqEnd(scanner, curr) {
var entity = { type: curr.value };
curr = scanner.next();
while(curr != 'EOF') {
if (curr.code == 0) break;
helpers.checkCommonEntityProperties(entity, curr);
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4,"./vertex":20}],17:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'SOLID';
EntityParser.prototype.parseEntity = function(scanner, currentGroup) {
var entity;
entity = { type: currentGroup.value };
entity.points = [];
currentGroup = scanner.next();
while(currentGroup !== 'EOF') {
if(currentGroup.code === 0) break;
switch(currentGroup.code) {
case 10:
entity.points[0] = helpers.parsePoint(scanner);
break;
case 11:
entity.points[1] = helpers.parsePoint(scanner);
break;
case 12:
entity.points[2] = helpers.parsePoint(scanner);
break;
case 13:
entity.points[3] = helpers.parsePoint(scanner);
break;
case 210:
entity.extrusionDirection = helpers.parsePoint(scanner);
break;
default: // check common entity attributes
helpers.checkCommonEntityProperties(entity, currentGroup);
break;
}
currentGroup = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],18:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'SPLINE';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity;
entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF')
{
if(curr.code === 0) break;
switch(curr.code) {
case 10:
if (!entity.controlPoints) entity.controlPoints = [];
entity.controlPoints.push(helpers.parsePoint(scanner));
break;
case 11:
if (!entity.fitPoints) entity.fitPoints = [];
entity.fitPoints.push(helpers.parsePoint(scanner));
break;
case 12:
entity.startTangent = helpers.parsePoint(scanner);
break;
case 13:
entity.endTangent = helpers.parsePoint(scanner);
break;
case 40:
if (!entity.knotValues) entity.knotValues = [];
entity.knotValues.push(curr.value);
break;
case 70:
if ((curr.value & 1) != 0) entity.closed = true;
if ((curr.value & 2) != 0) entity.periodic = true;
if ((curr.value & 4) != 0) entity.rational = true;
if ((curr.value & 8) != 0) entity.planar = true;
if ((curr.value & 16) != 0)
{
entity.planar = true;
entity.linear = true;
}
break;
case 71:
entity.degreeOfSplineCurve = curr.value;
break;
case 72:
entity.numberOfKnots = curr.value;
break;
case 73:
entity.numberOfControlPoints = curr.value;
break;
case 74:
entity.numberOfFitPoints = curr.value;
break;
case 210:
entity.normalVector = helpers.parsePoint(scanner);
break;
default:
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],19:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'TEXT';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity;
entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 10: // X coordinate of 'first alignment point'
entity.startPoint = helpers.parsePoint(scanner);
break;
case 11: // X coordinate of 'second alignment point'
entity.endPoint = helpers.parsePoint(scanner);
break;
case 40: // Text height
entity.textHeight = curr.value;
break;
case 41:
entity.xScale = curr.value;
break;
case 50: // Rotation in degrees
entity.rotation = curr.value;
break;
case 1: // Text
entity.text = curr.value;
break;
// NOTE: 72 and 73 are meaningless without 11 (second alignment point)
case 72: // Horizontal alignment
entity.halign = curr.value;
break;
case 73: // Vertical alignment
entity.valign = curr.value;
break;
default: // check common entity attributes
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],20:[function(require,module,exports){
var helpers = require('../ParseHelpers');
module.exports = EntityParser;
function EntityParser() {}
EntityParser.ForEntityName = 'VERTEX';
EntityParser.prototype.parseEntity = function(scanner, curr) {
var entity = { type: curr.value };
curr = scanner.next();
while(curr !== 'EOF') {
if(curr.code === 0) break;
switch(curr.code) {
case 10: // X
entity.x = curr.value;
break;
case 20: // Y
entity.y = curr.value;
break;
case 30: // Z
entity.z = curr.value;
break;
case 40: // start width
case 41: // end width
case 42: // bulge
if(curr.value != 0) entity.bulge = curr.value;
break;
case 70: // flags
entity.curveFittingVertex = (curr.value & 1) !== 0;
entity.curveFitTangent = (curr.value & 2) !== 0;
entity.splineVertex = (curr.value & 8) !== 0;
entity.splineControlPoint = (curr.value & 16) !== 0;
entity.threeDPolylineVertex = (curr.value & 32) !== 0;
entity.threeDPolylineMesh = (curr.value & 64) !== 0;
entity.polyfaceMeshVertex = (curr.value & 128) !== 0;
break;
case 50: // curve fit tangent direction
case 71: // polyface mesh vertex index
case 72: // polyface mesh vertex index
case 73: // polyface mesh vertex index
case 74: // polyface mesh vertex index
break;
default:
helpers.checkCommonEntityProperties(entity, curr);
break;
}
curr = scanner.next();
}
return entity;
};
},{"../ParseHelpers":4}],21:[function(require,module,exports){
/*
* loglevel - https://github.com/pimterry/loglevel
*
* Copyright (c) 2013 Tim Perry
* Licensed under the MIT license.
*/
(function (root, definition) {
if (typeof module === 'object' && module.exports && typeof require === 'function') {
module.exports = definition();
} else if (typeof define === 'function' && typeof define.amd === 'object') {
define(definition);
} else {
root.log = definition();
}
}(this, function () {
var self = {};
var noop = function() {};
var undefinedType = "undefined";
function realMethod(methodName) {
if (typeof console === undefinedType) {
return false; // We can't build a real method without a console to log to
} else if (console[methodName] !== undefined) {
return bindMethod(console, methodName);
} else if (console.log !== undefined) {
return bindMethod(console, 'log');
} else {
return noop;
}
}
function bindMethod(obj, methodName) {
var method = obj[methodName];
if (typeof method.bind === 'function') {
return method.bind(obj);
} else {
try {
return Function.prototype.bind.call(method, obj);
} catch (e) {
// Missing bind shim or IE8 + Modernizr, fallback to wrapping
return function() {
return Function.prototype.apply.apply(method, [obj, arguments]);
};
}
}
}
function enableLoggingWhenConsoleArrives(methodName, level) {
return function () {
if (typeof console !== undefinedType) {
replaceLoggingMethods(level);
self[methodName].apply(self, arguments);
}
};
}
var logMethods = [
"trace",
"debug",
"info",
"warn",
"error"
];
function replaceLoggingMethods(level) {
for (var i = 0; i < logMethods.length; i++) {
var methodName = logMethods[i];
self[methodName] = (i < level) ? noop : self.methodFactory(methodName, level);
}
}
function persistLevelIfPossible(levelNum) {
var levelName = (logMethods[levelNum] || 'silent').toUpperCase();
// Use localStorage if available
try {
window.localStorage['loglevel'] = levelName;
return;
} catch (ignore) {}
// Use session cookie as fallback
try {
window.document.cookie = "loglevel=" + levelName + ";";
} catch (ignore) {}
}
function loadPersistedLevel() {
var storedLevel;
try {
storedLevel = window.localStorage['loglevel'];
} catch (ignore) {}
if (typeof storedLevel === undefinedType) {
try {
storedLevel = /loglevel=([^;]+)/.exec(window.document.cookie)[1];
} catch (ignore) {}
}
if (self.levels[storedLevel] === undefined) {
storedLevel = "WARN";
}
self.setLevel(self.levels[storedLevel], false);
}
/*
*
* Public API
*
*/
self.levels = { "TRACE": 0, "DEBUG": 1, "INFO": 2, "WARN": 3,
"ERROR": 4, "SILENT": 5};
self.methodFactory = function (methodName, level) {
return realMethod(methodName) ||
enableLoggingWhenConsoleArrives(methodName, level);
};
self.setLevel = function (level, persist) {
if (typeof level === "string" && self.levels[level.toUpperCase()] !== undefined) {
level = self.levels[level.toUpperCase()];
}
if (typeof level === "number" && level >= 0 && level <= self.levels.SILENT) {
if (persist !== false) { // defaults to true
persistLevelIfPossible(level);
}
replaceLoggingMethods(level);
if (typeof console === undefinedType && level < self.levels.SILENT) {
return "No console available for logging";
}
} else {
throw "log.setLevel() called with invalid level: " + level;
}
};
self.enableAll = function(persist) {
self.setLevel(self.levels.TRACE, persist);
};
self.disableAll = function(persist) {
self.setLevel(self.levels.SILENT, persist);
};
// Grab the current global log variable in case of overwrite
var _log = (typeof window !== undefinedType) ? window.log : undefined;
self.noConflict = function() {
if (typeof window !== undefinedType &&
window.log === self) {
window.log = _log;
}
return self;
};
loadPersistedLevel();
return self;
}));
},{}]},{},[3])(3)
});