geotiff - npm Package Compare versions

Comparing version 0.3.3 to 0.3.5

dist/geotiff.js

@@ -132,4 +132,95 @@ (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){
 
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var DataView64 = function () {
+  function DataView64(arrayBuffer) {
+    _classCallCheck(this, DataView64);
+
+    this._dataView = new DataView(arrayBuffer);
+  }
+
+  _createClass(DataView64, [{
+    key: "getUint64",
+    value: function getUint64(offset, littleEndian) {
+      var left = this.getUint32(offset, littleEndian);
+      var right = this.getUint32(offset + 4, littleEndian);
+      if (littleEndian) {
+        return left << 32 | right;
+      }
+      return right << 32 | left;
+    }
+  }, {
+    key: "getInt64",
+    value: function getInt64(offset, littleEndian) {
+      var left, right;
+      if (littleEndian) {
+        left = this.getInt32(offset, littleEndian);
+        right = this.getUint32(offset + 4, littleEndian);
+
+        return left << 32 | right;
+      }
+      left = this.getUint32(offset, littleEndian);
+      right = this.getInt32(offset + 4, littleEndian);
+      return right << 32 | left;
+    }
+  }, {
+    key: "getUint8",
+    value: function getUint8(offset, littleEndian) {
+      return this._dataView.getUint8(offset, littleEndian);
+    }
+  }, {
+    key: "getInt8",
+    value: function getInt8(offset, littleEndian) {
+      return this._dataView.getInt8(offset, littleEndian);
+    }
+  }, {
+    key: "getUint16",
+    value: function getUint16(offset, littleEndian) {
+      return this._dataView.getUint16(offset, littleEndian);
+    }
+  }, {
+    key: "getInt16",
+    value: function getInt16(offset, littleEndian) {
+      return this._dataView.getInt16(offset, littleEndian);
+    }
+  }, {
+    key: "getUint32",
+    value: function getUint32(offset, littleEndian) {
+      return this._dataView.getUint32(offset, littleEndian);
+    }
+  }, {
+    key: "getInt32",
+    value: function getInt32(offset, littleEndian) {
+      return this._dataView.getInt32(offset, littleEndian);
+    }
+  }, {
+    key: "getFloat32",
+    value: function getFloat32(offset, littleEndian) {
+      return this._dataView.getFloat32(offset, littleEndian);
+    }
+  }, {
+    key: "getFloat64",
+    value: function getFloat64(offset, littleEndian) {
+      return this._dataView.getFloat64(offset, littleEndian);
+    }
+  }, {
+    key: "buffer",
+    get: function get() {
+      return this._dataView.buffer;
+    }
+  }]);
+
+  return DataView64;
+}();
+
+module.exports = DataView64;
+
+},{}],7:[function(require,module,exports){
+"use strict";
+
 var globals = require("./globals.js");
 var GeoTIFFImage = require("./geotiffimage.js");
+var DataView64 = require("./dataview64.js");
 
@@ -149,3 +240,3 @@ var fieldTypes = globals.fieldTypes,
 function GeoTIFF(rawData, options) {
-  this.dataView = new DataView(rawData);
+  this.dataView = new DataView64(rawData);
   options = options || {};
@@ -163,10 +254,26 @@ this.cache = options.cache || false;
 
-  if (this.dataView.getUint16(2, this.littleEndian) !== 42) {
+  var magicNumber = this.dataView.getUint16(2, this.littleEndian);
+  if (this.dataView.getUint16(2, this.littleEndian) === 42) {
+    this.bigTiff = false;
+  } else if (magicNumber === 43) {
+    this.bigTiff = true;
+    var offsetBytesize = this.dataView.getUint16(4, this.littleEndian);
+    if (offsetBytesize !== 8) {
+      throw new Error("Unsupported offset byte-size.");
+    }
+  } else {
     throw new TypeError("Invalid magic number.");
   }
 
-  this.fileDirectories = this.parseFileDirectories(this.dataView.getUint32(4, this.littleEndian));
+  this.fileDirectories = this.parseFileDirectories(this.getOffset(this.bigTiff ? 8 : 4));
 }
 
 GeoTIFF.prototype = {
+  getOffset: function getOffset(offset) {
+    if (this.bigTiff) {
+      return this.dataView.getUint64(offset, this.littleEndian);
+    }
+    return this.dataView.getUint32(offset, this.littleEndian);
+  },
+
   getFieldTypeLength: function getFieldTypeLength(fieldType) {
@@ -181,2 +288,3 @@ switch (fieldType) {
       case fieldTypes.RATIONAL:case fieldTypes.SRATIONAL:case fieldTypes.DOUBLE:
+      case fieldTypes.LONG8:case fieldTypes.SLONG8:case fieldTypes.IFD8:
         return 8;
@@ -213,2 +321,8 @@ default:
         break;
+      case fieldTypes.LONG8:case fieldTypes.IFD8:
+        values = new Array(count);readMethod = this.dataView.getUint64;
+        break;
+      case fieldTypes.SLONG8:
+        values = new Array(count);readMethod = this.dataView.getInt64;
+        break;
       case fieldTypes.RATIONAL:
@@ -254,6 +368,6 @@ values = new Uint32Array(count * 2);readMethod = this.dataView.getUint32;
 
-    if (fieldTypeLength * typeCount <= 4) {
+    if (fieldTypeLength * typeCount <= (this.bigTiff ? 8 : 4)) {
       fieldValues = this.getValues(fieldType, typeCount, valueOffset);
     } else {
-      var actualOffset = this.dataView.getUint32(valueOffset, this.littleEndian);
+      var actualOffset = this.getOffset(valueOffset);
       fieldValues = this.getValues(fieldType, typeCount, actualOffset);
@@ -305,15 +419,16 @@ }
     while (nextIFDByteOffset !== 0x00000000) {
-      var numDirEntries = this.dataView.getUint16(nextIFDByteOffset, this.littleEndian);
+      var numDirEntries = this.bigTiff ? this.dataView.getUint64(nextIFDByteOffset, this.littleEndian) : this.dataView.getUint16(nextIFDByteOffset, this.littleEndian);
+
       var fileDirectory = {};
 
-      for (var i = byteOffset + 2, entryCount = 0; entryCount < numDirEntries; i += 12, ++entryCount) {
+      for (var i = byteOffset + (this.bigTiff ? 8 : 2), entryCount = 0; entryCount < numDirEntries; i += this.bigTiff ? 20 : 12, ++entryCount) {
         var fieldTag = this.dataView.getUint16(i, this.littleEndian);
         var fieldType = this.dataView.getUint16(i + 2, this.littleEndian);
-        var typeCount = this.dataView.getUint32(i + 4, this.littleEndian);
+        var typeCount = this.bigTiff ? this.dataView.getUint64(i + 4, this.littleEndian) : this.dataView.getUint32(i + 4, this.littleEndian);
 
-        fileDirectory[fieldTagNames[fieldTag]] = this.getFieldValues(fieldTag, fieldType, typeCount, i + 8);
+        fileDirectory[fieldTagNames[fieldTag]] = this.getFieldValues(fieldTag, fieldType, typeCount, i + (this.bigTiff ? 12 : 8));
       }
       fileDirectories.push([fileDirectory, this.parseGeoKeyDirectory(fileDirectory)]);
 
-      nextIFDByteOffset = this.dataView.getUint32(i, this.littleEndian);
+      nextIFDByteOffset = this.getOffset(i);
     }
@@ -340,3 +455,3 @@ return fileDirectories;
    * Returns the count of the internal subfiles.
-   * 
+   *
    * @returns {Number} the number of internal subfile images
@@ -351,3 +466,3 @@ */
 
-},{"./geotiffimage.js":7,"./globals.js":8}],7:[function(require,module,exports){
+},{"./dataview64.js":6,"./geotiffimage.js":8,"./globals.js":9}],8:[function(require,module,exports){
 "use strict";
@@ -429,2 +544,3 @@
   switch (this.fileDirectory.Compression) {
+    case undefined:
     case 1:
@@ -538,3 +654,3 @@ // no compression
   getReaderForSample: function getReaderForSample(sampleIndex) {
-    var format = this.fileDirectory.SampleFormat[sampleIndex];
+    var format = this.fileDirectory.SampleFormat ? this.fileDirectory.SampleFormat[sampleIndex] : 1;
     var bitsPerSample = this.fileDirectory.BitsPerSample[sampleIndex];
@@ -576,3 +692,3 @@ switch (format) {
   getArrayForSample: function getArrayForSample(sampleIndex, size) {
-    var format = this.fileDirectory.SampleFormat[sampleIndex];
+    var format = this.fileDirectory.SampleFormat ? this.fileDirectory.SampleFormat[sampleIndex] : 1;
     var bitsPerSample = this.fileDirectory.BitsPerSample[sampleIndex];
@@ -797,7 +913,7 @@ return arrayForType(format, bitsPerSample, size);
    * This callback is called upon successful reading of a GeoTIFF image. The
-   * resulting arrays are passed as a single argument. 
+   * resulting arrays are passed as a single argument.
    * @callback GeoTIFFImage~readCallback
-   * @param {(TypedArray|TypedArray[])} array the requested data as a either a 
+   * @param {(TypedArray|TypedArray[])} array the requested data as a either a
    *                                          single typed array or a list of
-   *                                          typed arrays, depending on the 
+   *                                          typed arrays, depending on the
    *                                          'interleave' option.
@@ -807,3 +923,3 @@ */
   /**
-   * This callback is called upon encountering an error while reading of a 
+   * This callback is called upon encountering an error while reading of a
    * GeoTIFF image
@@ -822,8 +938,8 @@ * @callback GeoTIFFImage~readErrorCallback
    * @param {Array} [options.samples=all samples] the selection of samples to read from.
-   * @param {Boolean} [options.interleave=false] whether the data shall be read 
-   *                                             in one single array or separate 
+   * @param {Boolean} [options.interleave=false] whether the data shall be read
+   *                                             in one single array or separate
    *                                             arrays.
    * @param {GeoTIFFImage~readCallback} [callback] the success callback. this
    *                                               parameter is mandatory for
-   *                                               asynchronous decoders (some 
+   *                                               asynchronous decoders (some
    *                                               compression mechanisms).
@@ -903,3 +1019,3 @@ * @param {GeoTIFFImage~readErrorCallback} [callbackError] the error callback
     if (interleave) {
-      var format = Math.max.apply(null, this.fileDirectory.SampleFormat),
+      var format = this.fileDirectory.SampleFormat ? Math.max.apply(null, this.fileDirectory.SampleFormat) : 1,
           bitsPerSample = Math.max.apply(null, this.fileDirectory.BitsPerSample);
@@ -972,3 +1088,3 @@ valueArrays = arrayForType(format, bitsPerSample, numPixels * samples.length);
 
-},{"./compression/deflate.js":2,"./compression/lzw.js":3,"./compression/packbits.js":4,"./compression/raw.js":5,"./globals.js":8}],8:[function(require,module,exports){
+},{"./compression/deflate.js":2,"./compression/lzw.js":3,"./compression/packbits.js":4,"./compression/raw.js":5,"./globals.js":9}],9:[function(require,module,exports){
 "use strict";
@@ -1116,3 +1232,7 @@
   0x000B: 'FLOAT',
-  0x000C: 'DOUBLE'
+  0x000C: 'DOUBLE',
+  // introduced by BigTIFF
+  0x0010: 'LONG8',
+  0x0011: 'SLONG8',
+  0x0012: 'IFD8'
 };
@@ -1212,3 +1332,3 @@
 
-},{"xmldom":"xmldom"}],9:[function(require,module,exports){
+},{"xmldom":"xmldom"}],10:[function(require,module,exports){
 "use strict";
@@ -1248,2 +1368,2 @@
 
-},{"./geotiff.js":6}]},{},[9]);
+},{"./geotiff.js":7}]},{},[10]);

dist/geotiff.min.js

@@ -1,1 +0,1 @@
-!function a(b,c,d){function e(g,h){if(!c[g]){if(!b[g]){var i="function"==typeof require&&require;if(!h&&i)return i(g,!0);if(f)return f(g,!0);var j=new Error("Cannot find module '"+g+"'");throw j.code="MODULE_NOT_FOUND",j}var k=c[g]={exports:{}};b[g][0].call(k.exports,function(a){var c=b[g][1][a];return e(c?c:a)},k,k.exports,a,b,c,d)}return c[g].exports}for(var f="function"==typeof require&&require,g=0;g<d.length;g++)e(d[g]);return e}({1:[function(a,b,c){"use strict";function d(){}d.prototype={isAsync:function(){return"undefined"==typeof this.decodeBlock}},b.exports=d},{}],2:[function(a,b,c){"use strict";function d(){}var e=a("../abstractdecoder.js");d.prototype=Object.create(e.prototype),d.prototype.constructor=d,d.prototype.decodeBlockAsync=function(a,b){throw new Error("DeflateDecoder is not yet implemented.")},b.exports=d},{"../abstractdecoder.js":1}],3:[function(a,b,c){"use strict";function d(){}var e=a("../abstractdecoder.js");d.prototype=Object.create(e.prototype),d.prototype.constructor=d,d.prototype.decodeBlock=function(a){throw new Error("LZWDecoder is not yet implemented")},b.exports=d},{"../abstractdecoder.js":1}],4:[function(a,b,c){"use strict";function d(){}var e=a("../abstractdecoder.js");d.prototype=Object.create(e.prototype),d.prototype.constructor=d,d.prototype.decodeBlock=function(a){var b,c,d=new DataView(a),e=[];for(b=0;b<a.byteLength;++b){var f=d.getInt8(b);if(0>f){var g=d.getUint8(b+1);for(f=-f,c=0;f>=c;++c)e.push(g);b+=1}else{for(c=0;f>=c;++c)e.push(d.getUint8(b+c+1));b+=f+1}}return new Uint8Array(e).buffer},b.exports=d},{"../abstractdecoder.js":1}],5:[function(a,b,c){"use strict";function d(){}var e=a("../abstractdecoder.js");d.prototype=Object.create(e.prototype),d.prototype.constructor=d,d.prototype.decodeBlock=function(a){return a},b.exports=d},{"../abstractdecoder.js":1}],6:[function(a,b,c){"use strict";function d(a,b){this.dataView=new DataView(a),b=b||{},this.cache=b.cache||!1;var c=this.dataView.getUint16(0,0);if(18761===c)this.littleEndian=!0;else{if(19789!==c)throw new TypeError("Invalid byte order value.");this.littleEndian=!1}if(42!==this.dataView.getUint16(2,this.littleEndian))throw new TypeError("Invalid magic number.");this.fileDirectories=this.parseFileDirectories(this.dataView.getUint32(4,this.littleEndian))}var e=a("./globals.js"),f=a("./geotiffimage.js"),g=e.fieldTypes,h=e.fieldTagNames,i=e.arrayFields,j=e.geoKeyNames;d.prototype={getFieldTypeLength:function(a){switch(a){case g.BYTE:case g.ASCII:case g.SBYTE:case g.UNDEFINED:return 1;case g.SHORT:case g.SSHORT:return 2;case g.LONG:case g.SLONG:case g.FLOAT:return 4;case g.RATIONAL:case g.SRATIONAL:case g.DOUBLE:return 8;default:throw new RangeError("Invalid field type: "+a)}},getValues:function(a,b,c){var d,e=null,f=null,h=this.getFieldTypeLength(a);switch(a){case g.BYTE:case g.ASCII:case g.UNDEFINED:e=new Uint8Array(b),f=this.dataView.getUint8;break;case g.SBYTE:e=new Int8Array(b),f=this.dataView.getInt8;break;case g.SHORT:e=new Uint16Array(b),f=this.dataView.getUint16;break;case g.SSHORT:e=new Int16Array(b),f=this.dataView.getInt16;break;case g.LONG:e=new Uint32Array(b),f=this.dataView.getUint32;break;case g.SLONG:e=new Int32Array(b),f=this.dataView.getInt32;break;case g.RATIONAL:e=new Uint32Array(2*b),f=this.dataView.getUint32;break;case g.SRATIONAL:e=new Int32Array(2*b),f=this.dataView.getInt32;break;case g.FLOAT:e=new Float32Array(b),f=this.dataView.getFloat32;break;case g.DOUBLE:e=new Float64Array(b),f=this.dataView.getFloat64;break;default:throw new RangeError("Invalid field type: "+a)}if(a!==g.RATIONAL&&a!==g.SRATIONAL)for(d=0;b>d;++d)e[d]=f.call(this.dataView,c+d*h,this.littleEndian);else for(d=0;2*b>d;d+=2)e[d]=f.call(this.dataView,c+d*h,this.littleEndian),e[d+1]=f.call(this.dataView,c+(d+1)*h,this.littleEndian);return a===g.ASCII?String.fromCharCode.apply(null,e):e},getFieldValues:function(a,b,c,d){var e,f=this.getFieldTypeLength(b);if(4>=f*c)e=this.getValues(b,c,d);else{var h=this.dataView.getUint32(d,this.littleEndian);e=this.getValues(b,c,h)}return 1===c&&-1===i.indexOf(a)&&b!==g.RATIONAL&&b!==g.SRATIONAL?e[0]:e},parseGeoKeyDirectory:function(a){var b=a.GeoKeyDirectory;if(!b)return null;for(var c={},d=4;d<4*b[3];d+=4){var e=j[b[d]],f=b[d+1]?h[b[d+1]]:null,g=b[d+2],i=b[d+3],k=null;if(f){if(k=a[f],"undefined"==typeof k||null===k)throw new Error("Could not get value of geoKey '"+e+"'.");"string"==typeof k?k=k.substring(i,i+g-1):k.subarray&&(k=k.subarray(i,i+g-1))}else k=i;c[e]=k}return c},parseFileDirectories:function(a){for(var b=a,c=[];0!==b;){for(var d=this.dataView.getUint16(b,this.littleEndian),e={},f=a+2,g=0;d>g;f+=12,++g){var i=this.dataView.getUint16(f,this.littleEndian),j=this.dataView.getUint16(f+2,this.littleEndian),k=this.dataView.getUint32(f+4,this.littleEndian);e[h[i]]=this.getFieldValues(i,j,k,f+8)}c.push([e,this.parseGeoKeyDirectory(e)]),b=this.dataView.getUint32(f,this.littleEndian)}return c},getImage:function(a){a=a||0;var b=this.fileDirectories[a];if(!b)throw new RangeError("Invalid image index");return new f(b[0],b[1],this.dataView,this.littleEndian,this.cache)},getImageCount:function(){return this.fileDirectories.length}},b.exports=d},{"./geotiffimage.js":7,"./globals.js":8}],7:[function(a,b,c){"use strict";function d(a,b,c,d,e){this.fileDirectory=a,this.geoKeys=b,this.dataView=c,this.littleEndian=d,this.tiles=e?{}:null,this.isTiled=a.StripOffsets?!1:!0;var j=a.PlanarConfiguration;if(this.planarConfiguration="undefined"==typeof j?1:j,1!==this.planarConfiguration&&2!==this.planarConfiguration)throw new Error("Invalid planar configuration.");switch(this.fileDirectory.Compression){case 1:this.decoder=new f;break;case 5:this.decoder=new g;break;case 6:throw new Error("JPEG compression not supported.");case 8:this.decoder=new h;break;case 32773:this.decoder=new i;break;default:throw new Error("Unknown compresseion method identifier: "+this.fileDirectory.Compression)}}var e=a("./globals.js"),f=a("./compression/raw.js"),g=a("./compression/lzw.js"),h=a("./compression/deflate.js"),i=a("./compression/packbits.js"),j=function(a,b,c){for(var d=0,e=b;c>e;++e)d+=a[e];return d},k=function(a,b,c){switch(a){case 1:switch(b){case 8:return new Uint8Array(c);case 16:return new Uint16Array(c);case 32:return new Uint32Array(c)}break;case 2:switch(b){case 8:return new Int8Array(c);case 16:return new Int16Array(c);case 32:return new Int32Array(c)}break;case 3:switch(b){case 32:return new Float32Array(c);case 64:return new Float64Array(c)}}throw Error("Unsupported data format/bitsPerSample")};d.prototype={getFileDirectory:function(){return this.fileDirectory},getGeoKeys:function(){return this.geoKeys},getWidth:function(){return this.fileDirectory.ImageWidth},getHeight:function(){return this.fileDirectory.ImageLength},getSamplesPerPixel:function(){return this.fileDirectory.SamplesPerPixel},getTileWidth:function(){return this.isTiled?this.fileDirectory.TileWidth:this.getWidth()},getTileHeight:function(){return this.isTiled?this.fileDirectory.TileLength:this.fileDirectory.RowsPerStrip},getBytesPerPixel:function(){for(var a=0,b=0;b<this.fileDirectory.BitsPerSample.length;++b){var c=this.fileDirectory.BitsPerSample[b];if(c%8!==0)throw new Error("Sample bit-width of "+c+" is not supported.");if(c!==this.fileDirectory.BitsPerSample[0])throw new Error("Differing size of samples in a pixel are not supported.");a+=c}return a/8},getSampleByteSize:function(a){if(a>=this.fileDirectory.BitsPerSample.length)throw new RangeError("Sample index "+a+" is out of range.");var b=this.fileDirectory.BitsPerSample[a];if(b%8!==0)throw new Error("Sample bit-width of "+b+" is not supported.");return b/8},getReaderForSample:function(a){var b=this.fileDirectory.SampleFormat[a],c=this.fileDirectory.BitsPerSample[a];switch(b){case 1:switch(c){case 8:return DataView.prototype.getUint8;case 16:return DataView.prototype.getUint16;case 32:return DataView.prototype.getUint32}break;case 2:switch(c){case 8:return DataView.prototype.getInt8;case 16:return DataView.prototype.getInt16;case 32:return DataView.prototype.getInt32}break;case 3:switch(c){case 32:return DataView.prototype.getFloat32;case 64:return DataView.prototype.getFloat64}}},getArrayForSample:function(a,b){var c=this.fileDirectory.SampleFormat[a],d=this.fileDirectory.BitsPerSample[a];return k(c,d,b)},getDecoder:function(){return this.decoder},getTileOrStrip:function(a,b,c,d){var e,f=Math.ceil(this.getWidth()/this.getTileWidth()),g=Math.ceil(this.getHeight()/this.getTileHeight()),h=this.tiles;if(1===this.planarConfiguration?e=b*f+a:2===this.planarConfiguration&&(e=c*f*g+b*f+a),null!==h&&e in h)return d?d(null,{x:a,y:b,sample:c,data:h[e]}):h[e];var i,j;this.isTiled?(i=this.fileDirectory.TileOffsets[e],j=this.fileDirectory.TileByteCounts[e]):(i=this.fileDirectory.StripOffsets[e],j=this.fileDirectory.StripByteCounts[e]);var k=this.dataView.buffer.slice(i,i+j);if(d)return this.getDecoder().decodeBlockAsync(k,function(f,g){f||null===h||(h[e]=g),d(f,{x:a,y:b,sample:c,data:g})});var l=this.getDecoder().decodeBlock(k);return null!==h&&(h[e]=l),l},_readRasterAsync:function(a,b,c,d,e,f){function g(e,f){if(e)x=e;else for(var g=new DataView(f.data),j=f.y*k,l=f.x*i,m=(f.y+1)*k,n=(f.x+1)*i,o=(f.sample,Math.max(0,a[1]-j));o<Math.min(k,k-(m-a[3]));++o)for(var t=Math.max(0,a[0]-l);t<Math.min(i,i-(n-a[2]));++t){var u,y=(o*i+t)*q,z=s[C].call(g,y+r[C],w);d?(u=(o+j-a[1])*p*b.length+(t+l-a[0])*b.length+C,c[u]=z):(u=(o+j-a[1])*p+t+l-a[0],c[C][u]=z)}v-=1,h()}function h(){u&&0===v&&(x?f(x):e(c))}for(var i=this.getTileWidth(),k=this.getTileHeight(),l=Math.floor(a[0]/i),m=Math.ceil(a[2]/i),n=Math.floor(a[1]/k),o=Math.ceil(a[3]/k),p=(Math.ceil(this.getWidth()/i),a[2]-a[0]),q=(a[3]-a[1],this.getBytesPerPixel()),r=(this.getWidth(),[]),s=[],t=0;t<b.length;++t)1===this.planarConfiguration?r.push(j(this.fileDirectory.BitsPerSample,0,b[t])/8):r.push(0),s.push(this.getReaderForSample(b[t]));for(var u=!1,v=0,w=this.littleEndian,x=null,y=n;o>=y;++y)for(var z=l;m>=z;++z)for(var A=0;A<b.length;++A){var B=b[A];2===this.planarConfiguration&&(q=this.getSampleByteSize(B));var C=A;v+=1,this.getTileOrStrip(z,y,B,g)}u=!0,h()},_readRaster:function(a,b,c,d,e,f){try{for(var g=this.getTileWidth(),h=this.getTileHeight(),i=Math.floor(a[0]/g),k=Math.ceil(a[2]/g),l=Math.floor(a[1]/h),m=Math.ceil(a[3]/h),n=(Math.ceil(this.getWidth()/g),a[2]-a[0]),o=(a[3]-a[1],this.getBytesPerPixel()),p=(this.getWidth(),[]),q=[],r=0;r<b.length;++r)1===this.planarConfiguration?p.push(j(this.fileDirectory.BitsPerSample,0,b[r])/8):p.push(0),q.push(this.getReaderForSample(b[r]));for(var s=l;m>s;++s)for(var t=i;k>t;++t)for(var u=s*h,v=t*g,w=(s+1)*h,x=(t+1)*g,y=0;y<b.length;++y){var z=b[y];2===this.planarConfiguration&&(o=this.getSampleByteSize(z));for(var A=new DataView(this.getTileOrStrip(t,s,z)),B=Math.max(0,a[1]-u);B<Math.min(h,h-(w-a[3]));++B)for(var C=Math.max(0,a[0]-v);C<Math.min(g,g-(x-a[2]));++C){var D,E=(B*g+C)*o,F=q[y].call(A,E+p[y],this.littleEndian);d?(D=(B+u-a[1])*n*b.length+(C+v-a[0])*b.length+y,c[D]=F):(D=(B+u-a[1])*n+C+v-a[0],c[y][D]=F)}}return e(c),c}catch(G){return f(G)}},readRasters:function(){var a,b,c;switch(arguments.length){case 0:break;case 1:"function"==typeof arguments[0]?b=arguments[0]:a=arguments[0];break;case 2:"function"==typeof arguments[0]?(b=arguments[0],c=arguments[1]):(a=arguments[0],b=arguments[1]);break;case 3:a=arguments[0],b=arguments[1],c=arguments[2];break;default:throw new Error("Invalid number of arguments passed.")}a=a||{},c=c||function(a){console.error(a)};var d=a.window||[0,0,this.getWidth(),this.getHeight()],e=a.samples,f=a.interleave;if(d[0]<0||d[1]<0||d[2]>this.getWidth()||d[3]>this.getHeight())throw new Error("Select window is out of image bounds.");if(d[0]>d[2]||d[1]>d[3])throw new Error("Invalid subsets");var g,h=d[2]-d[0],i=d[3]-d[1],j=h*i;if(e){for(g=0;g<e.length;++g)if(e[g]>=this.fileDirectory.SamplesPerPixel)throw new RangeError("Invalid sample index '"+e[g]+"'.")}else for(e=[],g=0;g<this.fileDirectory.SamplesPerPixel;++g)e.push(g);var l;if(f){var m=Math.max.apply(null,this.fileDirectory.SampleFormat),n=Math.max.apply(null,this.fileDirectory.BitsPerSample);l=k(m,n,j*e.length)}else for(l=[],g=0;g<e.length;++g)l.push(this.getArrayForSample(e[g],j));var o=this.getDecoder();if(o.isAsync()){if(!b)throw new Error("No callback specified for asynchronous raster reading.");return this._readRasterAsync(d,e,l,f,b,c)}return b=b||function(){},this._readRaster(d,e,l,f,b,c)},getTiePoints:function(){if(!this.fileDirectory.ModelTiepoint)return[];for(var a=[],b=0;b<this.fileDirectory.ModelTiepoint.length;b+=6)a.push({i:this.fileDirectory.ModelTiepoint[b],j:this.fileDirectory.ModelTiepoint[b+1],k:this.fileDirectory.ModelTiepoint[b+2],x:this.fileDirectory.ModelTiepoint[b+3],y:this.fileDirectory.ModelTiepoint[b+4],z:this.fileDirectory.ModelTiepoint[b+5]});return a},getGDALMetadata:function(){var a={};if(!this.fileDirectory.GDAL_METADATA)return null;for(var b=this.fileDirectory.GDAL_METADATA,c=e.parseXml(b.substring(0,b.length-1)),d=c.evaluate("GDALMetadata/Item",c,null,XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,null),f=0;f<d.snapshotLength;++f){var g=d.snapshotItem(f);a[g.getAttribute("name")]=g.textContent}return a}},b.exports=d},{"./compression/deflate.js":2,"./compression/lzw.js":3,"./compression/packbits.js":4,"./compression/raw.js":5,"./globals.js":8}],8:[function(a,b,c){"use strict";var d,e={315:"Artist",258:"BitsPerSample",265:"CellLength",264:"CellWidth",320:"ColorMap",259:"Compression",33432:"Copyright",306:"DateTime",338:"ExtraSamples",266:"FillOrder",289:"FreeByteCounts",288:"FreeOffsets",291:"GrayResponseCurve",290:"GrayResponseUnit",316:"HostComputer",270:"ImageDescription",257:"ImageLength",256:"ImageWidth",271:"Make",281:"MaxSampleValue",280:"MinSampleValue",272:"Model",254:"NewSubfileType",274:"Orientation",262:"PhotometricInterpretation",284:"PlanarConfiguration",296:"ResolutionUnit",278:"RowsPerStrip",277:"SamplesPerPixel",305:"Software",279:"StripByteCounts",273:"StripOffsets",255:"SubfileType",263:"Threshholding",282:"XResolution",283:"YResolution",326:"BadFaxLines",327:"CleanFaxData",343:"ClipPath",328:"ConsecutiveBadFaxLines",433:"Decode",434:"DefaultImageColor",269:"DocumentName",336:"DotRange",321:"HalftoneHints",346:"Indexed",347:"JPEGTables",285:"PageName",297:"PageNumber",317:"Predictor",319:"PrimaryChromaticities",532:"ReferenceBlackWhite",339:"SampleFormat",340:"SMinSampleValue",341:"SMaxSampleValue",559:"StripRowCounts",330:"SubIFDs",292:"T4Options",293:"T6Options",325:"TileByteCounts",323:"TileLength",324:"TileOffsets",322:"TileWidth",301:"TransferFunction",318:"WhitePoint",344:"XClipPathUnits",286:"XPosition",529:"YCbCrCoefficients",531:"YCbCrPositioning",530:"YCbCrSubSampling",345:"YClipPathUnits",287:"YPosition",37378:"ApertureValue",40961:"ColorSpace",36868:"DateTimeDigitized",36867:"DateTimeOriginal",34665:"Exif 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j={1024:"GTModelTypeGeoKey",1025:"GTRasterTypeGeoKey",1026:"GTCitationGeoKey",2048:"GeographicTypeGeoKey",2049:"GeogCitationGeoKey",2050:"GeogGeodeticDatumGeoKey",2051:"GeogPrimeMeridianGeoKey",2052:"GeogLinearUnitsGeoKey",2053:"GeogLinearUnitSizeGeoKey",2054:"GeogAngularUnitsGeoKey",2055:"GeogAngularUnitSizeGeoKey",2056:"GeogEllipsoidGeoKey",2057:"GeogSemiMajorAxisGeoKey",2058:"GeogSemiMinorAxisGeoKey",2059:"GeogInvFlatteningGeoKey",2060:"GeogAzimuthUnitsGeoKey",2061:"GeogPrimeMeridianLongGeoKey",2062:"GeogTOWGS84GeoKey",3072:"ProjectedCSTypeGeoKey",3073:"PCSCitationGeoKey",3074:"ProjectionGeoKey",3075:"ProjCoordTransGeoKey",3076:"ProjLinearUnitsGeoKey",3077:"ProjLinearUnitSizeGeoKey",3078:"ProjStdParallel1GeoKey",3079:"ProjStdParallel2GeoKey",3080:"ProjNatOriginLongGeoKey",3081:"ProjNatOriginLatGeoKey",3082:"ProjFalseEastingGeoKey",3083:"ProjFalseNorthingGeoKey",3084:"ProjFalseOriginLongGeoKey",3085:"ProjFalseOriginLatGeoKey",3086:"ProjFalseOriginEastingGeoKey",3087:"ProjFalseOriginNorthingGeoKey",3088:"ProjCenterLongGeoKey",3089:"ProjCenterLatGeoKey",3090:"ProjCenterEastingGeoKey",3091:"ProjCenterNorthingGeoKey",3092:"ProjScaleAtNatOriginGeoKey",3093:"ProjScaleAtCenterGeoKey",3094:"ProjAzimuthAngleGeoKey",3095:"ProjStraightVertPoleLongGeoKey",3096:"ProjRectifiedGridAngleGeoKey",4096:"VerticalCSTypeGeoKey",4097:"VerticalCitationGeoKey",4098:"VerticalDatumGeoKey",4099:"VerticalUnitsGeoKey"},k={};for(d in j)k[j[d]]=parseInt(d);var l;"undefined"==typeof window?l=function(b){var c=a("xmldom").DOMParser;return(new c).parseFromString(b,"text/xml")}:"undefined"!=typeof window.DOMParser?l=function(a){return(new window.DOMParser).parseFromString(a,"text/xml")}:"undefined"!=typeof window.ActiveXObject&&new window.ActiveXObject("Microsoft.XMLDOM")&&(l=function(a){var b=new window.ActiveXObject("Microsoft.XMLDOM");return b.async="false",b.loadXML(a),b}),b.exports={fieldTags:f,fieldTagNames:e,arrayFields:g,fieldTypes:i,fieldTypeNames:h,geoKeys:k,geoKeyNames:j,parseXml:l}},{xmldom:"xmldom"}],9:[function(a,b,c){"use strict";var d=a("./geotiff.js"),e=function(a,b){var c,e,f,g;if("string"==typeof a||a instanceof String)for(c=new ArrayBuffer(2*a.length),g=new Uint16Array(c),e=0,f=a.length;f>e;++e)g[e]=a.charCodeAt(e);else{if(!(a instanceof ArrayBuffer))throw new Error("Invalid input data given.");c=a}return new d(c,b)};"undefined"!=typeof b&&"undefined"!=typeof b.exports&&(b.exports.parse=e),"undefined"!=typeof window&&(window.GeoTIFF={parse:e})},{"./geotiff.js":6}]},{},[9]);
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e=a("./globals.js"),f=a("./geotiffimage.js"),g=a("./dataview64.js"),h=e.fieldTypes,i=e.fieldTagNames,j=e.arrayFields,k=e.geoKeyNames;d.prototype={getOffset:function(a){return this.bigTiff?this.dataView.getUint64(a,this.littleEndian):this.dataView.getUint32(a,this.littleEndian)},getFieldTypeLength:function(a){switch(a){case h.BYTE:case h.ASCII:case h.SBYTE:case h.UNDEFINED:return 1;case h.SHORT:case h.SSHORT:return 2;case h.LONG:case h.SLONG:case h.FLOAT:return 4;case h.RATIONAL:case h.SRATIONAL:case h.DOUBLE:case h.LONG8:case h.SLONG8:case h.IFD8:return 8;default:throw new RangeError("Invalid field type: "+a)}},getValues:function(a,b,c){var d,e=null,f=null,g=this.getFieldTypeLength(a);switch(a){case h.BYTE:case h.ASCII:case h.UNDEFINED:e=new Uint8Array(b),f=this.dataView.getUint8;break;case h.SBYTE:e=new Int8Array(b),f=this.dataView.getInt8;break;case h.SHORT:e=new Uint16Array(b),f=this.dataView.getUint16;break;case h.SSHORT:e=new Int16Array(b),f=this.dataView.getInt16;break;case 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h=this.dataView.getUint16(f,this.littleEndian),j=this.dataView.getUint16(f+2,this.littleEndian),k=this.bigTiff?this.dataView.getUint64(f+4,this.littleEndian):this.dataView.getUint32(f+4,this.littleEndian);e[i[h]]=this.getFieldValues(h,j,k,f+(this.bigTiff?12:8))}c.push([e,this.parseGeoKeyDirectory(e)]),b=this.getOffset(f)}return c},getImage:function(a){a=a||0;var b=this.fileDirectories[a];if(!b)throw new RangeError("Invalid image index");return new f(b[0],b[1],this.dataView,this.littleEndian,this.cache)},getImageCount:function(){return this.fileDirectories.length}},b.exports=d},{"./dataview64.js":6,"./geotiffimage.js":8,"./globals.js":9}],8:[function(a,b,c){"use strict";function d(a,b,c,d,e){this.fileDirectory=a,this.geoKeys=b,this.dataView=c,this.littleEndian=d,this.tiles=e?{}:null,this.isTiled=a.StripOffsets?!1:!0;var j=a.PlanarConfiguration;if(this.planarConfiguration="undefined"==typeof j?1:j,1!==this.planarConfiguration&&2!==this.planarConfiguration)throw new Error("Invalid planar configuration.");switch(this.fileDirectory.Compression){case void 0:case 1:this.decoder=new f;break;case 5:this.decoder=new g;break;case 6:throw new Error("JPEG compression not supported.");case 8:this.decoder=new h;break;case 32773:this.decoder=new i;break;default:throw new Error("Unknown compresseion method identifier: "+this.fileDirectory.Compression)}}var e=a("./globals.js"),f=a("./compression/raw.js"),g=a("./compression/lzw.js"),h=a("./compression/deflate.js"),i=a("./compression/packbits.js"),j=function(a,b,c){for(var d=0,e=b;c>e;++e)d+=a[e];return d},k=function(a,b,c){switch(a){case 1:switch(b){case 8:return new Uint8Array(c);case 16:return new Uint16Array(c);case 32:return new Uint32Array(c)}break;case 2:switch(b){case 8:return new Int8Array(c);case 16:return new Int16Array(c);case 32:return new Int32Array(c)}break;case 3:switch(b){case 32:return new Float32Array(c);case 64:return new Float64Array(c)}}throw Error("Unsupported data format/bitsPerSample")};d.prototype={getFileDirectory:function(){return this.fileDirectory},getGeoKeys:function(){return this.geoKeys},getWidth:function(){return this.fileDirectory.ImageWidth},getHeight:function(){return this.fileDirectory.ImageLength},getSamplesPerPixel:function(){return this.fileDirectory.SamplesPerPixel},getTileWidth:function(){return this.isTiled?this.fileDirectory.TileWidth:this.getWidth()},getTileHeight:function(){return this.isTiled?this.fileDirectory.TileLength:this.fileDirectory.RowsPerStrip},getBytesPerPixel:function(){for(var a=0,b=0;b<this.fileDirectory.BitsPerSample.length;++b){var c=this.fileDirectory.BitsPerSample[b];if(c%8!==0)throw new Error("Sample bit-width of "+c+" is not supported.");if(c!==this.fileDirectory.BitsPerSample[0])throw new Error("Differing size of samples in a pixel are not supported.");a+=c}return a/8},getSampleByteSize:function(a){if(a>=this.fileDirectory.BitsPerSample.length)throw new RangeError("Sample index "+a+" is out of range.");var b=this.fileDirectory.BitsPerSample[a];if(b%8!==0)throw new Error("Sample bit-width of "+b+" is not supported.");return b/8},getReaderForSample:function(a){var b=this.fileDirectory.SampleFormat?this.fileDirectory.SampleFormat[a]:1,c=this.fileDirectory.BitsPerSample[a];switch(b){case 1:switch(c){case 8:return DataView.prototype.getUint8;case 16:return DataView.prototype.getUint16;case 32:return DataView.prototype.getUint32}break;case 2:switch(c){case 8:return DataView.prototype.getInt8;case 16:return DataView.prototype.getInt16;case 32:return DataView.prototype.getInt32}break;case 3:switch(c){case 32:return DataView.prototype.getFloat32;case 64:return DataView.prototype.getFloat64}}},getArrayForSample:function(a,b){var c=this.fileDirectory.SampleFormat?this.fileDirectory.SampleFormat[a]:1,d=this.fileDirectory.BitsPerSample[a];return k(c,d,b)},getDecoder:function(){return this.decoder},getTileOrStrip:function(a,b,c,d){var e,f=Math.ceil(this.getWidth()/this.getTileWidth()),g=Math.ceil(this.getHeight()/this.getTileHeight()),h=this.tiles;if(1===this.planarConfiguration?e=b*f+a:2===this.planarConfiguration&&(e=c*f*g+b*f+a),null!==h&&e in h)return d?d(null,{x:a,y:b,sample:c,data:h[e]}):h[e];var i,j;this.isTiled?(i=this.fileDirectory.TileOffsets[e],j=this.fileDirectory.TileByteCounts[e]):(i=this.fileDirectory.StripOffsets[e],j=this.fileDirectory.StripByteCounts[e]);var k=this.dataView.buffer.slice(i,i+j);if(d)return this.getDecoder().decodeBlockAsync(k,function(f,g){f||null===h||(h[e]=g),d(f,{x:a,y:b,sample:c,data:g})});var l=this.getDecoder().decodeBlock(k);return null!==h&&(h[e]=l),l},_readRasterAsync:function(a,b,c,d,e,f){function g(e,f){if(e)x=e;else for(var g=new DataView(f.data),j=f.y*k,l=f.x*i,m=(f.y+1)*k,n=(f.x+1)*i,o=(f.sample,Math.max(0,a[1]-j));o<Math.min(k,k-(m-a[3]));++o)for(var t=Math.max(0,a[0]-l);t<Math.min(i,i-(n-a[2]));++t){var u,y=(o*i+t)*q,z=s[C].call(g,y+r[C],w);d?(u=(o+j-a[1])*p*b.length+(t+l-a[0])*b.length+C,c[u]=z):(u=(o+j-a[1])*p+t+l-a[0],c[C][u]=z)}v-=1,h()}function h(){u&&0===v&&(x?f(x):e(c))}for(var i=this.getTileWidth(),k=this.getTileHeight(),l=Math.floor(a[0]/i),m=Math.ceil(a[2]/i),n=Math.floor(a[1]/k),o=Math.ceil(a[3]/k),p=(Math.ceil(this.getWidth()/i),a[2]-a[0]),q=(a[3]-a[1],this.getBytesPerPixel()),r=(this.getWidth(),[]),s=[],t=0;t<b.length;++t)1===this.planarConfiguration?r.push(j(this.fileDirectory.BitsPerSample,0,b[t])/8):r.push(0),s.push(this.getReaderForSample(b[t]));for(var u=!1,v=0,w=this.littleEndian,x=null,y=n;o>=y;++y)for(var z=l;m>=z;++z)for(var A=0;A<b.length;++A){var B=b[A];2===this.planarConfiguration&&(q=this.getSampleByteSize(B));var C=A;v+=1,this.getTileOrStrip(z,y,B,g)}u=!0,h()},_readRaster:function(a,b,c,d,e,f){try{for(var g=this.getTileWidth(),h=this.getTileHeight(),i=Math.floor(a[0]/g),k=Math.ceil(a[2]/g),l=Math.floor(a[1]/h),m=Math.ceil(a[3]/h),n=(Math.ceil(this.getWidth()/g),a[2]-a[0]),o=(a[3]-a[1],this.getBytesPerPixel()),p=(this.getWidth(),[]),q=[],r=0;r<b.length;++r)1===this.planarConfiguration?p.push(j(this.fileDirectory.BitsPerSample,0,b[r])/8):p.push(0),q.push(this.getReaderForSample(b[r]));for(var s=l;m>s;++s)for(var t=i;k>t;++t)for(var u=s*h,v=t*g,w=(s+1)*h,x=(t+1)*g,y=0;y<b.length;++y){var z=b[y];2===this.planarConfiguration&&(o=this.getSampleByteSize(z));for(var A=new DataView(this.getTileOrStrip(t,s,z)),B=Math.max(0,a[1]-u);B<Math.min(h,h-(w-a[3]));++B)for(var C=Math.max(0,a[0]-v);C<Math.min(g,g-(x-a[2]));++C){var D,E=(B*g+C)*o,F=q[y].call(A,E+p[y],this.littleEndian);d?(D=(B+u-a[1])*n*b.length+(C+v-a[0])*b.length+y,c[D]=F):(D=(B+u-a[1])*n+C+v-a[0],c[y][D]=F)}}return e(c),c}catch(G){return f(G)}},readRasters:function(){var a,b,c;switch(arguments.length){case 0:break;case 1:"function"==typeof arguments[0]?b=arguments[0]:a=arguments[0];break;case 2:"function"==typeof arguments[0]?(b=arguments[0],c=arguments[1]):(a=arguments[0],b=arguments[1]);break;case 3:a=arguments[0],b=arguments[1],c=arguments[2];break;default:throw new Error("Invalid number of arguments passed.")}a=a||{},c=c||function(a){console.error(a)};var d=a.window||[0,0,this.getWidth(),this.getHeight()],e=a.samples,f=a.interleave;if(d[0]<0||d[1]<0||d[2]>this.getWidth()||d[3]>this.getHeight())throw new Error("Select window is out of image bounds.");if(d[0]>d[2]||d[1]>d[3])throw new Error("Invalid subsets");var g,h=d[2]-d[0],i=d[3]-d[1],j=h*i;if(e){for(g=0;g<e.length;++g)if(e[g]>=this.fileDirectory.SamplesPerPixel)throw new RangeError("Invalid sample index '"+e[g]+"'.")}else for(e=[],g=0;g<this.fileDirectory.SamplesPerPixel;++g)e.push(g);var l;if(f){var m=this.fileDirectory.SampleFormat?Math.max.apply(null,this.fileDirectory.SampleFormat):1,n=Math.max.apply(null,this.fileDirectory.BitsPerSample);l=k(m,n,j*e.length)}else for(l=[],g=0;g<e.length;++g)l.push(this.getArrayForSample(e[g],j));var o=this.getDecoder();if(o.isAsync()){if(!b)throw new Error("No callback specified for asynchronous raster reading.");return this._readRasterAsync(d,e,l,f,b,c)}return b=b||function(){},this._readRaster(d,e,l,f,b,c)},getTiePoints:function(){if(!this.fileDirectory.ModelTiepoint)return[];for(var a=[],b=0;b<this.fileDirectory.ModelTiepoint.length;b+=6)a.push({i:this.fileDirectory.ModelTiepoint[b],j:this.fileDirectory.ModelTiepoint[b+1],k:this.fileDirectory.ModelTiepoint[b+2],x:this.fileDirectory.ModelTiepoint[b+3],y:this.fileDirectory.ModelTiepoint[b+4],z:this.fileDirectory.ModelTiepoint[b+5]});return a},getGDALMetadata:function(){var a={};if(!this.fileDirectory.GDAL_METADATA)return null;for(var b=this.fileDirectory.GDAL_METADATA,c=e.parseXml(b.substring(0,b.length-1)),d=c.evaluate("GDALMetadata/Item",c,null,XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,null),f=0;f<d.snapshotLength;++f){var g=d.snapshotItem(f);a[g.getAttribute("name")]=g.textContent}return a}},b.exports=d},{"./compression/deflate.js":2,"./compression/lzw.js":3,"./compression/packbits.js":4,"./compression/raw.js":5,"./globals.js":9}],9:[function(a,b,c){"use strict";var d,e={315:"Artist",258:"BitsPerSample",265:"CellLength",264:"CellWidth",320:"ColorMap",259:"Compression",33432:"Copyright",306:"DateTime",338:"ExtraSamples",266:"FillOrder",289:"FreeByteCounts",288:"FreeOffsets",291:"GrayResponseCurve",290:"GrayResponseUnit",316:"HostComputer",270:"ImageDescription",257:"ImageLength",256:"ImageWidth",271:"Make",281:"MaxSampleValue",280:"MinSampleValue",272:"Model",254:"NewSubfileType",274:"Orientation",262:"PhotometricInterpretation",284:"PlanarConfiguration",296:"ResolutionUnit",278:"RowsPerStrip",277:"SamplesPerPixel",305:"Software",279:"StripByteCounts",273:"StripOffsets",255:"SubfileType",263:"Threshholding",282:"XResolution",283:"YResolution",326:"BadFaxLines",327:"CleanFaxData",343:"ClipPath",328:"ConsecutiveBadFaxLines",433:"Decode",434:"DefaultImageColor",269:"DocumentName",336:"DotRange",321:"HalftoneHints",346:"Indexed",347:"JPEGTables",285:"PageName",297:"PageNumber",317:"Predictor",319:"PrimaryChromaticities",532:"ReferenceBlackWhite",339:"SampleFormat",340:"SMinSampleValue",341:"SMaxSampleValue",559:"StripRowCounts",330:"SubIFDs",292:"T4Options",293:"T6Options",325:"TileByteCounts",323:"TileLength",324:"TileOffsets",322:"TileWidth",301:"TransferFunction",318:"WhitePoint",344:"XClipPathUnits",286:"XPosition",529:"YCbCrCoefficients",531:"YCbCrPositioning",530:"YCbCrSubSampling",345:"YClipPathUnits",287:"YPosition",37378:"ApertureValue",40961:"ColorSpace",36868:"DateTimeDigitized",36867:"DateTimeOriginal",34665:"Exif IFD",36864:"ExifVersion",33434:"ExposureTime",41728:"FileSource",37385:"Flash",40960:"FlashpixVersion",33437:"FNumber",42016:"ImageUniqueID",37384:"LightSource",37500:"MakerNote",37377:"ShutterSpeedValue",37510:"UserComment",33723:"IPTC",34675:"ICC Profile",700:"XMP",42112:"GDAL_METADATA",42113:"GDAL_NODATA",34377:"Photoshop",33550:"ModelPixelScale",33922:"ModelTiepoint",34264:"ModelTransformation",34735:"GeoKeyDirectory",34736:"GeoDoubleParams",34737:"GeoAsciiParams"},f={};for(d in e)f[e[d]]=parseInt(d);var g=[f.BitsPerSample,f.ExtraSamples,f.SampleFormat,f.StripByteCounts,f.StripOffsets,f.StripRowCounts,f.TileByteCounts,f.TileOffsets],h={1:"BYTE",2:"ASCII",3:"SHORT",4:"LONG",5:"RATIONAL",6:"SBYTE",7:"UNDEFINED",8:"SSHORT",9:"SLONG",10:"SRATIONAL",11:"FLOAT",12:"DOUBLE",16:"LONG8",17:"SLONG8",18:"IFD8"},i={};for(d in h)i[h[d]]=parseInt(d);var j={1024:"GTModelTypeGeoKey",1025:"GTRasterTypeGeoKey",1026:"GTCitationGeoKey",2048:"GeographicTypeGeoKey",2049:"GeogCitationGeoKey",2050:"GeogGeodeticDatumGeoKey",2051:"GeogPrimeMeridianGeoKey",2052:"GeogLinearUnitsGeoKey",2053:"GeogLinearUnitSizeGeoKey",2054:"GeogAngularUnitsGeoKey",2055:"GeogAngularUnitSizeGeoKey",2056:"GeogEllipsoidGeoKey",2057:"GeogSemiMajorAxisGeoKey",2058:"GeogSemiMinorAxisGeoKey",2059:"GeogInvFlatteningGeoKey",2060:"GeogAzimuthUnitsGeoKey",2061:"GeogPrimeMeridianLongGeoKey",2062:"GeogTOWGS84GeoKey",3072:"ProjectedCSTypeGeoKey",3073:"PCSCitationGeoKey",3074:"ProjectionGeoKey",3075:"ProjCoordTransGeoKey",3076:"ProjLinearUnitsGeoKey",3077:"ProjLinearUnitSizeGeoKey",3078:"ProjStdParallel1GeoKey",3079:"ProjStdParallel2GeoKey",3080:"ProjNatOriginLongGeoKey",3081:"ProjNatOriginLatGeoKey",3082:"ProjFalseEastingGeoKey",3083:"ProjFalseNorthingGeoKey",3084:"ProjFalseOriginLongGeoKey",3085:"ProjFalseOriginLatGeoKey",3086:"ProjFalseOriginEastingGeoKey",3087:"ProjFalseOriginNorthingGeoKey",3088:"ProjCenterLongGeoKey",3089:"ProjCenterLatGeoKey",3090:"ProjCenterEastingGeoKey",3091:"ProjCenterNorthingGeoKey",3092:"ProjScaleAtNatOriginGeoKey",3093:"ProjScaleAtCenterGeoKey",3094:"ProjAzimuthAngleGeoKey",3095:"ProjStraightVertPoleLongGeoKey",3096:"ProjRectifiedGridAngleGeoKey",4096:"VerticalCSTypeGeoKey",4097:"VerticalCitationGeoKey",4098:"VerticalDatumGeoKey",4099:"VerticalUnitsGeoKey"},k={};for(d in j)k[j[d]]=parseInt(d);var l;"undefined"==typeof window?l=function(b){var c=a("xmldom").DOMParser;return(new c).parseFromString(b,"text/xml")}:"undefined"!=typeof window.DOMParser?l=function(a){return(new window.DOMParser).parseFromString(a,"text/xml")}:"undefined"!=typeof window.ActiveXObject&&new window.ActiveXObject("Microsoft.XMLDOM")&&(l=function(a){var b=new window.ActiveXObject("Microsoft.XMLDOM");return b.async="false",b.loadXML(a),b}),b.exports={fieldTags:f,fieldTagNames:e,arrayFields:g,fieldTypes:i,fieldTypeNames:h,geoKeys:k,geoKeyNames:j,parseXml:l}},{xmldom:"xmldom"}],10:[function(a,b,c){"use strict";var d=a("./geotiff.js"),e=function(a,b){var c,e,f,g;if("string"==typeof a||a instanceof String)for(c=new ArrayBuffer(2*a.length),g=new Uint16Array(c),e=0,f=a.length;f>e;++e)g[e]=a.charCodeAt(e);else{if(!(a instanceof ArrayBuffer))throw new Error("Invalid input data given.");c=a}return new d(c,b)};"undefined"!=typeof b&&"undefined"!=typeof b.exports&&(b.exports.parse=e),"undefined"!=typeof window&&(window.GeoTIFF={parse:e})},{"./geotiff.js":7}]},{},[10]);

package.json

 {
   "name": "geotiff",
-  "version": "0.3.3",
+  "version": "0.3.5",
   "description": "GeoTIFF image decoding in JavaScript",
@@ -5,0 +5,0 @@ "repository": "https://github.com/constantinius/geotiff.js",

README.md

@@ -95,4 +95,4 @@ # geotiff.js
 
-To actually open a GeoTIFF image use the `parse` function. It works with both 
-strings and `ArrayBuffer` and `String`s:
+To actually open a GeoTIFF image use the `parse` function. It works with both
+`ArrayBuffer` and `String`:
 
@@ -110,3 +110,4 @@ ```javascript
 
-The same for node:
+When using the parser in node, you have to convert the `Buffer` to an
+`ArrayBuffer` first. See the following example for the conversion:
 
@@ -119,6 +120,6 @@ ```javascript
   if (err) throw err;
-  var tiff = GeoTIFF.parse(data);
+  dataArray = data.buffer.slice(data.byteOffset, data.byteOffset + data.byteLength);
+  var tiff = GeoTIFF.parse(dataArray);
   // ...
 });
-
 ```
@@ -125,0 +126,0 @@

src/geotiff.js

@@ -5,2 +5,3 @@ "use strict";
 var GeoTIFFImage = require("./geotiffimage.js");
+var DataView64 = require("./dataview64.js");
 
@@ -20,27 +21,45 @@ var fieldTypes = globals.fieldTypes,
 function GeoTIFF(rawData, options) {
-    this.dataView = new DataView(rawData);
-    options = options || {};
-    this.cache = options.cache || false;
+  this.dataView = new DataView64(rawData);
+  options = options || {};
+  this.cache = options.cache || false;
 
-    var BOM = this.dataView.getUint16(0, 0);
-    if (BOM === 0x4949) {
-      this.littleEndian = true;
-    }
-    else if (BOM === 0x4D4D) {
-      this.littleEndian = false;
-    }
-    else {
-      throw new TypeError("Invalid byte order value.");
-    }
+  var BOM = this.dataView.getUint16(0, 0);
+  if (BOM === 0x4949) {
+    this.littleEndian = true;
+  }
+  else if (BOM === 0x4D4D) {
+    this.littleEndian = false;
+  }
+  else {
+    throw new TypeError("Invalid byte order value.");
+  }
 
-    if (this.dataView.getUint16(2, this.littleEndian) !== 42) {
-      throw new TypeError("Invalid magic number.");
+  var magicNumber = this.dataView.getUint16(2, this.littleEndian);
+  if (this.dataView.getUint16(2, this.littleEndian) === 42) {
+    this.bigTiff = false;
+  }
+  else if (magicNumber === 43) {
+    this.bigTiff = true;
+    var offsetBytesize = this.dataView.getUint16(4, this.littleEndian);
+    if (offsetBytesize !== 8) {
+      throw new Error("Unsupported offset byte-size.");
     }
-
-    this.fileDirectories = this.parseFileDirectories(
-      this.dataView.getUint32(4, this.littleEndian)
-    );
   }
+  else {
+    throw new TypeError("Invalid magic number.");
+  }
 
+  this.fileDirectories = this.parseFileDirectories(
+    this.getOffset((this.bigTiff) ? 8 : 4)
+  );
+}
+
 GeoTIFF.prototype = {
+  getOffset: function(offset) {
+    if (this.bigTiff) {
+      return this.dataView.getUint64(offset, this.littleEndian);
+    }
+    return this.dataView.getUint32(offset, this.littleEndian);
+  },
+
   getFieldTypeLength: function(fieldType) {
@@ -55,2 +74,3 @@ switch (fieldType) {
       case fieldTypes.RATIONAL: case fieldTypes.SRATIONAL: case fieldTypes.DOUBLE:
+      case fieldTypes.LONG8: case fieldTypes.SLONG8: case fieldTypes.IFD8:
         return 8;
@@ -87,2 +107,8 @@ default:
         break;
+      case fieldTypes.LONG8: case fieldTypes.IFD8:
+        values = new Array(count); readMethod = this.dataView.getUint64;
+        break;
+      case fieldTypes.SLONG8:
+        values = new Array(count); readMethod = this.dataView.getInt64;
+        break;
       case fieldTypes.RATIONAL:
@@ -134,7 +160,7 @@ values = new Uint32Array(count*2); readMethod = this.dataView.getUint32;
 
-    if (fieldTypeLength * typeCount <= 4) {
+    if (fieldTypeLength * typeCount <= (this.bigTiff ? 8 : 4)) {
       fieldValues = this.getValues(fieldType, typeCount, valueOffset);
     }
     else {
-      var actualOffset = this.dataView.getUint32(valueOffset, this.littleEndian);
+      var actualOffset = this.getOffset(valueOffset);
       fieldValues = this.getValues(fieldType, typeCount, actualOffset);
@@ -189,12 +215,17 @@ }
     while (nextIFDByteOffset !== 0x00000000) {
-      var numDirEntries = this.dataView.getUint16(nextIFDByteOffset, this.littleEndian);
+      var numDirEntries = this.bigTiff ?
+          this.dataView.getUint64(nextIFDByteOffset, this.littleEndian) :
+          this.dataView.getUint16(nextIFDByteOffset, this.littleEndian);
+
       var fileDirectory = {};
 
-      for (var i = byteOffset + 2, entryCount = 0; entryCount < numDirEntries; i += 12, ++entryCount) {
+      for (var i = byteOffset + (this.bigTiff ? 8 : 2), entryCount = 0; entryCount < numDirEntries; i += (this.bigTiff ? 20 : 12), ++entryCount) {
         var fieldTag = this.dataView.getUint16(i, this.littleEndian);
         var fieldType = this.dataView.getUint16(i + 2, this.littleEndian);
-        var typeCount = this.dataView.getUint32(i + 4, this.littleEndian);
+        var typeCount = this.bigTiff ?
+            this.dataView.getUint64(i + 4, this.littleEndian):
+            this.dataView.getUint32(i + 4, this.littleEndian);
 
         fileDirectory[fieldTagNames[fieldTag]] = this.getFieldValues(
-          fieldTag, fieldType, typeCount, i + 8
+          fieldTag, fieldType, typeCount, i + (this.bigTiff ? 12 : 8)
         );
@@ -206,3 +237,3 @@ }
 
-      nextIFDByteOffset = this.dataView.getUint32(i, this.littleEndian);
+      nextIFDByteOffset = this.getOffset(i);
     }
@@ -229,3 +260,3 @@ return fileDirectories;
    * Returns the count of the internal subfiles.
-   * 
+   *
    * @returns {Number} the number of internal subfile images
@@ -232,0 +263,0 @@ */

src/geotiffimage.js

@@ -75,3 +75,4 @@ "use strict";
   switch (this.fileDirectory.Compression) {
-    case 1:  // no compression
+    case undefined:
+    case 1: // no compression
       this.decoder = new RawDecoder();
@@ -180,3 +181,3 @@ break;
   getReaderForSample: function(sampleIndex) {
-    var format = this.fileDirectory.SampleFormat[sampleIndex];
+    var format = this.fileDirectory.SampleFormat ? this.fileDirectory.SampleFormat[sampleIndex] : 1;
     var bitsPerSample = this.fileDirectory.BitsPerSample[sampleIndex];
@@ -194,3 +195,3 @@ switch (format) {
         break;
-      case 2: // twos complement signed integer data 
+      case 2: // twos complement signed integer data
         switch (bitsPerSample) {
@@ -217,3 +218,3 @@ case 8:
   getArrayForSample: function(sampleIndex, size) {
-    var format = this.fileDirectory.SampleFormat[sampleIndex];
+    var format = this.fileDirectory.SampleFormat ? this.fileDirectory.SampleFormat[sampleIndex] : 1;
     var bitsPerSample = this.fileDirectory.BitsPerSample[sampleIndex];
@@ -245,3 +246,3 @@ return arrayForType(format, bitsPerSample, size);
     }
-    
+
     if (tiles !== null && index in tiles) {
@@ -298,3 +299,3 @@ if (callback) {
     var srcSampleOffsets = [];
-    var sampleReaders = []; 
+    var sampleReaders = [];
     for (var i = 0; i < samples.length; ++i) {
@@ -460,7 +461,7 @@ if (this.planarConfiguration === 1) {
    * This callback is called upon successful reading of a GeoTIFF image. The
-   * resulting arrays are passed as a single argument. 
+   * resulting arrays are passed as a single argument.
    * @callback GeoTIFFImage~readCallback
-   * @param {(TypedArray|TypedArray[])} array the requested data as a either a 
+   * @param {(TypedArray|TypedArray[])} array the requested data as a either a
    *                                          single typed array or a list of
-   *                                          typed arrays, depending on the 
+   *                                          typed arrays, depending on the
    *                                          'interleave' option.
@@ -470,3 +471,3 @@ */
   /**
-   * This callback is called upon encountering an error while reading of a 
+   * This callback is called upon encountering an error while reading of a
    * GeoTIFF image
@@ -485,8 +486,8 @@ * @callback GeoTIFFImage~readErrorCallback
    * @param {Array} [options.samples=all samples] the selection of samples to read from.
-   * @param {Boolean} [options.interleave=false] whether the data shall be read 
-   *                                             in one single array or separate 
+   * @param {Boolean} [options.interleave=false] whether the data shall be read
+   *                                             in one single array or separate
    *                                             arrays.
    * @param {GeoTIFFImage~readCallback} [callback] the success callback. this
    *                                               parameter is mandatory for
-   *                                               asynchronous decoders (some 
+   *                                               asynchronous decoders (some
    *                                               compression mechanisms).
@@ -571,3 +572,3 @@ * @param {GeoTIFFImage~readErrorCallback} [callbackError] the error callback
     if (interleave) {
-      var format = Math.max.apply(null, this.fileDirectory.SampleFormat),
+      var format = this.fileDirectory.SampleFormat ? Math.max.apply(null, this.fileDirectory.SampleFormat) : 1,
           bitsPerSample = Math.max.apply(null, this.fileDirectory.BitsPerSample);
@@ -574,0 +575,0 @@ valueArrays = arrayForType(format, bitsPerSample, numPixels * samples.length);

src/globals.js

@@ -152,3 +152,7 @@ "use strict";
   0x000B: 'FLOAT',
-  0x000C: 'DOUBLE'
+  0x000C: 'DOUBLE',
+  // introduced by BigTIFF
+  0x0010: 'LONG8',
+  0x0011: 'SLONG8',
+  0x0012: 'IFD8'
 };
@@ -155,0 +159,0 @@

test/geotiff.spec.js

@@ -6,29 +6,17 @@ var expect = require("chai").expect;
 
-  if (typeof XMLHttpRequest !== "undefined") {
-    var retrieve = function(filename, done, callback) {
-      var xhr = new XMLHttpRequest();
-      xhr.open('GET', '/base/test/data/' + filename, true);
-      xhr.responseType = 'arraybuffer';
-      xhr.onload = function(e) {
-        callback(GeoTIFF.parse(this.response));
-      };
-      xhr.onerror = function(e) {
-        console.error(e);
-        done(error);
-      };
-      callback;
-      xhr.send();
+  var retrieve = function(filename, done, callback) {
+    var xhr = new XMLHttpRequest();
+    xhr.open('GET', '/base/test/data/' + filename, true);
+    xhr.responseType = 'arraybuffer';
+    xhr.onload = function(e) {
+      callback(GeoTIFF.parse(this.response));
     };
-  }
-  else {
-    var retrieve = function(filename, done, callback) {
-      var fs = require("fs");
-      fs.readFile("data/" + filename, function(err, data) {
-        if (err) {
-          return done(err);
-        }
-        return callback(data);
-      });
+    xhr.onerror = function(e) {
+      console.error(e);
+      done(error);
     };
-  }
+    callback;
+    xhr.send();
+  };
+
   it("geotiff.js module available", function() {
@@ -35,0 +23,0 @@ expect(GeoTIFF).to.be.ok;

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