| 9 | | |
|---|
| 10 | | /** |
|---|
| 11 | | * @class This class represents a screen coordinate, in x and y coordinates |
|---|
| 12 | | */ |
|---|
| 13 | | OpenLayers.Pixel = Class.create(); |
|---|
| 14 | | OpenLayers.Pixel.prototype = { |
|---|
| 15 | | |
|---|
| 16 | | /** @type float */ |
|---|
| 17 | | x: 0.0, |
|---|
| 18 | | |
|---|
| 19 | | /** @type float */ |
|---|
| 20 | | y: 0.0, |
|---|
| 21 | | |
|---|
| 22 | | /** |
|---|
| 23 | | * @constructor |
|---|
| 24 | | * |
|---|
| 25 | | * @param {float} x |
|---|
| 26 | | * @param {float} y |
|---|
| 27 | | */ |
|---|
| 28 | | initialize: function(x, y) { |
|---|
| 29 | | this.x = x; |
|---|
| 30 | | this.y = y; |
|---|
| 31 | | }, |
|---|
| 32 | | |
|---|
| 33 | | /** |
|---|
| 34 | | * @return string representation of Pixel. ex: "x=200.4,y=242.2" |
|---|
| 35 | | * @type str |
|---|
| 36 | | */ |
|---|
| 37 | | toString:function() { |
|---|
| 38 | | return ("x=" + this.x + ",y=" + this.y); |
|---|
| 39 | | }, |
|---|
| 40 | | |
|---|
| 41 | | /** |
|---|
| 42 | | * @deprecated |
|---|
| 43 | | * |
|---|
| 44 | | * @type OpenLayers.Pixel |
|---|
| 45 | | */ |
|---|
| 46 | | copyOf:function() { |
|---|
| 47 | | return this.clone(); |
|---|
| 48 | | }, |
|---|
| 49 | | |
|---|
| 50 | | /** |
|---|
| 51 | | * @type OpenLayers.Pixel |
|---|
| 52 | | */ |
|---|
| 53 | | clone:function() { |
|---|
| 54 | | return new OpenLayers.Pixel(this.x, this.y); |
|---|
| 55 | | }, |
|---|
| 56 | | |
|---|
| 57 | | /** |
|---|
| 58 | | * @param {OpenLayers.Pixel} px |
|---|
| 59 | | * |
|---|
| 60 | | * @return whether or not the point passed in as parameter is equal to this |
|---|
| 61 | | * note that if px passed in is null, returns false |
|---|
| 62 | | * @type bool |
|---|
| 63 | | */ |
|---|
| 64 | | equals:function(px) { |
|---|
| 65 | | var equals = false; |
|---|
| 66 | | if (px != null) { |
|---|
| 67 | | equals = ((this.x == px.x && this.y == px.y) || |
|---|
| 68 | | (isNaN(this.x) && isNaN(this.y) && isNaN(px.x) && isNaN(px.y))); |
|---|
| 69 | | } |
|---|
| 70 | | return equals; |
|---|
| 71 | | }, |
|---|
| 72 | | |
|---|
| 73 | | /** |
|---|
| 74 | | * @param {int} x |
|---|
| 75 | | * @param {int} y |
|---|
| 76 | | * |
|---|
| 77 | | * @return a new Pixel with this pixel's x&y augmented by the |
|---|
| 78 | | * values passed in. |
|---|
| 79 | | * @type OpenLayers.Pixel |
|---|
| 80 | | */ |
|---|
| 81 | | add:function(x, y) { |
|---|
| 82 | | return new OpenLayers.Pixel(this.x + x, this.y + y); |
|---|
| 83 | | }, |
|---|
| 84 | | |
|---|
| 85 | | /** |
|---|
| 86 | | * @param {OpenLayers.Pixel} px |
|---|
| 87 | | * |
|---|
| 88 | | * @return a new Pixel with this pixel's x&y augmented by the |
|---|
| 89 | | * x&y values of the pixel passed in. |
|---|
| 90 | | * @type OpenLayers.Pixel |
|---|
| 91 | | */ |
|---|
| 92 | | offset:function(px) { |
|---|
| 93 | | return this.add(px.x, px.y); |
|---|
| 94 | | }, |
|---|
| 95 | | |
|---|
| 96 | | /** @final @type str */ |
|---|
| 97 | | CLASS_NAME: "OpenLayers.Pixel" |
|---|
| 98 | | }; |
|---|
| 99 | | |
|---|
| 100 | | |
|---|
| 101 | | /** |
|---|
| 102 | | * @class This class represents a width and height pair |
|---|
| 103 | | */ |
|---|
| 104 | | OpenLayers.Size = Class.create(); |
|---|
| 105 | | OpenLayers.Size.prototype = { |
|---|
| 106 | | |
|---|
| 107 | | /** @type float */ |
|---|
| 108 | | w: 0.0, |
|---|
| 109 | | |
|---|
| 110 | | /** @type float */ |
|---|
| 111 | | h: 0.0, |
|---|
| 112 | | |
|---|
| 113 | | |
|---|
| 114 | | /** |
|---|
| 115 | | * @constructor |
|---|
| 116 | | * |
|---|
| 117 | | * @param {float} w |
|---|
| 118 | | * @param {float} h |
|---|
| 119 | | */ |
|---|
| 120 | | initialize: function(w, h) { |
|---|
| 121 | | this.w = w; |
|---|
| 122 | | this.h = h; |
|---|
| 123 | | }, |
|---|
| 124 | | |
|---|
| 125 | | /** |
|---|
| 126 | | * @return String representation of OpenLayers.Size object. |
|---|
| 127 | | * (ex. <i>"w=55,h=66"</i>) |
|---|
| 128 | | * @type String |
|---|
| 129 | | */ |
|---|
| 130 | | toString:function() { |
|---|
| 131 | | return ("w=" + this.w + ",h=" + this.h); |
|---|
| 132 | | }, |
|---|
| 133 | | |
|---|
| 134 | | /** |
|---|
| 135 | | * @deprecated |
|---|
| 136 | | * |
|---|
| 137 | | * @return New OpenLayers.Size object with the same w and h values |
|---|
| 138 | | * @type OpenLayers.Size |
|---|
| 139 | | */ |
|---|
| 140 | | copyOf:function() { |
|---|
| 141 | | return this.clone(); |
|---|
| 142 | | }, |
|---|
| 143 | | |
|---|
| 144 | | /** |
|---|
| 145 | | * @return New OpenLayers.Size object with the same w and h values |
|---|
| 146 | | * @type OpenLayers.Size |
|---|
| 147 | | */ |
|---|
| 148 | | clone:function() { |
|---|
| 149 | | return new OpenLayers.Size(this.w, this.h); |
|---|
| 150 | | }, |
|---|
| 151 | | |
|---|
| 152 | | /** |
|---|
| 153 | | * @param {OpenLayers.Size} sz |
|---|
| 154 | | * @returns Boolean value indicating whether the passed-in OpenLayers.Size |
|---|
| 155 | | * object has the same w and h components as this |
|---|
| 156 | | * note that if sz passed in is null, returns false |
|---|
| 157 | | * |
|---|
| 158 | | * @type bool |
|---|
| 159 | | */ |
|---|
| 160 | | equals:function(sz) { |
|---|
| 161 | | var equals = false; |
|---|
| 162 | | if (sz != null) { |
|---|
| 163 | | equals = ((this.w == sz.w && this.h == sz.h) || |
|---|
| 164 | | (isNaN(this.w) && isNaN(this.h) && isNaN(sz.w) && isNaN(sz.h))); |
|---|
| 165 | | } |
|---|
| 166 | | return equals; |
|---|
| 167 | | }, |
|---|
| 168 | | |
|---|
| 169 | | /** @final @type String */ |
|---|
| 170 | | CLASS_NAME: "OpenLayers.Size" |
|---|
| 171 | | }; |
|---|
| 172 | | |
|---|
| 173 | | /** |
|---|
| 174 | | * @class This class represents a longitude and latitude pair |
|---|
| 175 | | */ |
|---|
| 176 | | OpenLayers.LonLat = Class.create(); |
|---|
| 177 | | OpenLayers.LonLat.prototype = { |
|---|
| 178 | | |
|---|
| 179 | | /** @type float */ |
|---|
| 180 | | lon: 0.0, |
|---|
| 181 | | |
|---|
| 182 | | /** @type float */ |
|---|
| 183 | | lat: 0.0, |
|---|
| 184 | | |
|---|
| 185 | | /** |
|---|
| 186 | | * @constructor |
|---|
| 187 | | * |
|---|
| 188 | | * @param {float} lon |
|---|
| 189 | | * @param {float} lat |
|---|
| 190 | | */ |
|---|
| 191 | | initialize: function(lon, lat) { |
|---|
| 192 | | this.lon = lon; |
|---|
| 193 | | this.lat = lat; |
|---|
| 194 | | }, |
|---|
| 195 | | |
|---|
| 196 | | /** |
|---|
| 197 | | * @return String representation of OpenLayers.LonLat object. |
|---|
| 198 | | * (ex. <i>"lon=5,lat=42"</i>) |
|---|
| 199 | | * @type String |
|---|
| 200 | | */ |
|---|
| 201 | | toString:function() { |
|---|
| 202 | | return ("lon=" + this.lon + ",lat=" + this.lat); |
|---|
| 203 | | }, |
|---|
| 204 | | |
|---|
| 205 | | /** |
|---|
| 206 | | * @return Shortened String representation of OpenLayers.LonLat object. |
|---|
| 207 | | * (ex. <i>"5, 42"</i>) |
|---|
| 208 | | * @type String |
|---|
| 209 | | */ |
|---|
| 210 | | toShortString:function() { |
|---|
| 211 | | return (this.lon + ", " + this.lat); |
|---|
| 212 | | }, |
|---|
| 213 | | |
|---|
| 214 | | /** |
|---|
| 215 | | * @deprecated |
|---|
| 216 | | * |
|---|
| 217 | | * @return New OpenLayers.LonLat object with the same lon and lat values |
|---|
| 218 | | * @type OpenLayers.LonLat |
|---|
| 219 | | */ |
|---|
| 220 | | copyOf:function() { |
|---|
| 221 | | return this.clone(); |
|---|
| 222 | | }, |
|---|
| 223 | | |
|---|
| 224 | | /** |
|---|
| 225 | | * @return New OpenLayers.LonLat object with the same lon and lat values |
|---|
| 226 | | * @type OpenLayers.LonLat |
|---|
| 227 | | */ |
|---|
| 228 | | clone:function() { |
|---|
| 229 | | return new OpenLayers.LonLat(this.lon, this.lat); |
|---|
| 230 | | }, |
|---|
| 231 | | |
|---|
| 232 | | /** |
|---|
| 233 | | * @param {float} lon |
|---|
| 234 | | * @param {float} lat |
|---|
| 235 | | * |
|---|
| 236 | | * @return A new OpenLayers.LonLat object with the lon and lat passed-in |
|---|
| 237 | | * added to this's. |
|---|
| 238 | | * @type OpenLayers.LonLat |
|---|
| 239 | | */ |
|---|
| 240 | | add:function(lon, lat) { |
|---|
| 241 | | return new OpenLayers.LonLat(this.lon + lon, this.lat + lat); |
|---|
| 242 | | }, |
|---|
| 243 | | |
|---|
| 244 | | /** |
|---|
| 245 | | * @param {OpenLayers.LonLat} ll |
|---|
| 246 | | * @returns Boolean value indicating whether the passed-in OpenLayers.LonLat |
|---|
| 247 | | * object has the same lon and lat components as this |
|---|
| 248 | | * note that if ll passed in is null, returns false |
|---|
| 249 | | * |
|---|
| 250 | | * @type bool |
|---|
| 251 | | */ |
|---|
| 252 | | equals:function(ll) { |
|---|
| 253 | | var equals = false; |
|---|
| 254 | | if (ll != null) { |
|---|
| 255 | | equals = ((this.lon == ll.lon && this.lat == ll.lat) || |
|---|
| 256 | | (isNaN(this.lon) && isNaN(this.lat) && isNaN(ll.lon) && isNaN(ll.lat))); |
|---|
| 257 | | } |
|---|
| 258 | | return equals; |
|---|
| 259 | | }, |
|---|
| 260 | | |
|---|
| 261 | | /** @final @type String */ |
|---|
| 262 | | CLASS_NAME: "OpenLayers.LonLat" |
|---|
| 263 | | }; |
|---|
| 264 | | |
|---|
| 265 | | /** Alternative constructor that builds a new OpenLayers.LonLat from a |
|---|
| 266 | | * parameter string |
|---|
| 267 | | * |
|---|
| 268 | | * @constructor |
|---|
| 269 | | * |
|---|
| 270 | | * @param {String} str Comma-separated Lon,Lat coordinate string. |
|---|
| 271 | | * (ex. <i>"5,40"</i>) |
|---|
| 272 | | * |
|---|
| 273 | | * @returns New OpenLayers.LonLat object built from the passed-in String. |
|---|
| 274 | | * @type OpenLayers.LonLat |
|---|
| 275 | | */ |
|---|
| 276 | | OpenLayers.LonLat.fromString = function(str) { |
|---|
| 277 | | var pair = str.split(","); |
|---|
| 278 | | return new OpenLayers.LonLat(parseFloat(pair[0]), |
|---|
| 279 | | parseFloat(pair[1])); |
|---|
| 280 | | }; |
|---|
| 281 | | |
|---|
| 282 | | |
|---|
| 283 | | |
|---|
| 284 | | |
|---|
| 285 | | /** |
|---|
| 286 | | * @class This class represents a bounding box. |
|---|
| 287 | | * Data stored as left, bottom, right, top floats |
|---|
| 288 | | */ |
|---|
| 289 | | OpenLayers.Bounds = Class.create(); |
|---|
| 290 | | OpenLayers.Bounds.prototype = { |
|---|
| 291 | | |
|---|
| 292 | | /** @type float */ |
|---|
| 293 | | left: 0.0, |
|---|
| 294 | | |
|---|
| 295 | | /** @type float */ |
|---|
| 296 | | bottom: 0.0, |
|---|
| 297 | | |
|---|
| 298 | | /** @type float */ |
|---|
| 299 | | right: 0.0, |
|---|
| 300 | | |
|---|
| 301 | | /** @type float */ |
|---|
| 302 | | top: 0.0, |
|---|
| 303 | | |
|---|
| 304 | | /** |
|---|
| 305 | | * @constructor |
|---|
| 306 | | * |
|---|
| 307 | | * @param {float} left |
|---|
| 308 | | * @param {float} bottom |
|---|
| 309 | | * @param {float} right |
|---|
| 310 | | * @param {float} top |
|---|
| 311 | | * |
|---|
| 312 | | */ |
|---|
| 313 | | initialize: function(left, bottom, right, top) { |
|---|
| 314 | | this.left = left; |
|---|
| 315 | | this.bottom = bottom; |
|---|
| 316 | | this.right = right; |
|---|
| 317 | | this.top = top; |
|---|
| 318 | | }, |
|---|
| 319 | | |
|---|
| 320 | | /** |
|---|
| 321 | | * @deprecated |
|---|
| 322 | | * |
|---|
| 323 | | * @returns A fresh copy of the bounds |
|---|
| 324 | | * @type OpenLayers.Bounds |
|---|
| 325 | | */ |
|---|
| 326 | | copyOf:function() { |
|---|
| 327 | | return this.clone(); |
|---|
| 328 | | }, |
|---|
| 329 | | |
|---|
| 330 | | /** |
|---|
| 331 | | * @returns A fresh copy of the bounds |
|---|
| 332 | | * @type OpenLayers.Bounds |
|---|
| 333 | | */ |
|---|
| 334 | | clone:function() { |
|---|
| 335 | | return new OpenLayers.Bounds(this.left, this.bottom, |
|---|
| 336 | | this.right, this.top); |
|---|
| 337 | | }, |
|---|
| 338 | | |
|---|
| 339 | | /** |
|---|
| 340 | | * @param {OpenLayers.Bounds} bounds |
|---|
| 341 | | * @returns Boolean value indicating whether the passed-in OpenLayers.Bounds |
|---|
| 342 | | * object has the same left, right, top, bottom components as this |
|---|
| 343 | | * note that if bounds passed in is null, returns false |
|---|
| 344 | | * |
|---|
| 345 | | * @type bool |
|---|
| 346 | | */ |
|---|
| 347 | | equals:function(bounds) { |
|---|
| 348 | | var equals = false; |
|---|
| 349 | | if (bounds != null) { |
|---|
| 350 | | equals = ((this.left == bounds.left) && |
|---|
| 351 | | (this.right == bounds.right) && |
|---|
| 352 | | (this.top == bounds.top) && |
|---|
| 353 | | (this.bottom == bounds.bottom)); |
|---|
| 354 | | } |
|---|
| 355 | | return equals; |
|---|
| 356 | | }, |
|---|
| 357 | | |
|---|
| 358 | | /** |
|---|
| 359 | | * @return String representation of OpenLayers.Bounds object. |
|---|
| 360 | | * (ex.<i>"left-bottom=(5,42) right-top=(10,45)"</i>) |
|---|
| 361 | | * @type String |
|---|
| 362 | | */ |
|---|
| 363 | | toString:function(){ |
|---|
| 364 | | return ( "left-bottom=(" + this.left + "," + this.bottom + ")" |
|---|
| 365 | | + " right-top=(" + this.right + "," + this.top + ")" ); |
|---|
| 366 | | }, |
|---|
| 367 | | |
|---|
| 368 | | /** |
|---|
| 369 | | * @return Simple String representation of OpenLayers.Bounds object. |
|---|
| 370 | | * (ex. <i>"5,42,10,45"</i>) |
|---|
| 371 | | * @type String |
|---|
| 372 | | */ |
|---|
| 373 | | toBBOX:function() { |
|---|
| 374 | | return (this.left + "," + this.bottom + "," |
|---|
| 375 | | + this.right + "," + this.top); |
|---|
| 376 | | }, |
|---|
| 377 | | |
|---|
| 378 | | /** |
|---|
| 379 | | * @returns The width of the bounds |
|---|
| 380 | | * @type float |
|---|
| 381 | | */ |
|---|
| 382 | | getWidth:function() { |
|---|
| 383 | | return (this.right - this.left); |
|---|
| 384 | | }, |
|---|
| 385 | | |
|---|
| 386 | | /** |
|---|
| 387 | | * @returns The height of the bounds |
|---|
| 388 | | * @type float |
|---|
| 389 | | */ |
|---|
| 390 | | getHeight:function() { |
|---|
| 391 | | return (this.top - this.bottom); |
|---|
| 392 | | }, |
|---|
| 393 | | |
|---|
| 394 | | /** |
|---|
| 395 | | * @returns An OpenLayers.Size which represents the size of the box |
|---|
| 396 | | * @type OpenLayers.Size |
|---|
| 397 | | */ |
|---|
| 398 | | getSize:function() { |
|---|
| 399 | | return new OpenLayers.Size(this.getWidth(), this.getHeight()); |
|---|
| 400 | | }, |
|---|
| 401 | | |
|---|
| 402 | | /** |
|---|
| 403 | | * @returns An OpenLayers.Pixel which represents the center of the bounds |
|---|
| 404 | | * @type OpenLayers.Pixel |
|---|
| 405 | | */ |
|---|
| 406 | | getCenterPixel:function() { |
|---|
| 407 | | return new OpenLayers.Pixel( (this.left + this.right) / 2, |
|---|
| 408 | | (this.bottom + this.top) / 2); |
|---|
| 409 | | }, |
|---|
| 410 | | |
|---|
| 411 | | /** |
|---|
| 412 | | * @returns An OpenLayers.LonLat which represents the center of the bounds |
|---|
| 413 | | * @type OpenLayers.LonLat |
|---|
| 414 | | */ |
|---|
| 415 | | getCenterLonLat:function() { |
|---|
| 416 | | return new OpenLayers.LonLat( (this.left + this.right) / 2, |
|---|
| 417 | | (this.bottom + this.top) / 2); |
|---|
| 418 | | }, |
|---|
| 419 | | |
|---|
| 420 | | /** |
|---|
| 421 | | * @param {float} x |
|---|
| 422 | | * @param {float} y |
|---|
| 423 | | * |
|---|
| 424 | | * @returns A new OpenLayers.Bounds whose coordinates are the same as this, |
|---|
| 425 | | * but shifted by the passed-in x and y values |
|---|
| 426 | | * @type OpenLayers.Bounds |
|---|
| 427 | | */ |
|---|
| 428 | | add:function(x, y){ |
|---|
| 429 | | return new OpenLayers.Box(this.left + x, this.bottom + y, |
|---|
| 430 | | this.right + x, this.top + y); |
|---|
| 431 | | }, |
|---|
| 432 | | |
|---|
| 433 | | /** |
|---|
| 434 | | * @param {float} x |
|---|
| 435 | | * @param {float} y |
|---|
| 436 | | * @param {Boolean} inclusive Whether or not to include the border. |
|---|
| 437 | | * Default is true |
|---|
| 438 | | * |
|---|
| 439 | | * @return Whether or not the passed-in coordinates are within this bounds |
|---|
| 440 | | * @type Boolean |
|---|
| 441 | | */ |
|---|
| 442 | | contains:function(x, y, inclusive) { |
|---|
| 443 | | |
|---|
| 444 | | //set default |
|---|
| 445 | | if (inclusive == null) { |
|---|
| 446 | | inclusive = true; |
|---|
| 447 | | } |
|---|
| 448 | | |
|---|
| 449 | | var contains = false; |
|---|
| 450 | | if (inclusive) { |
|---|
| 451 | | contains = ((x >= this.left) && (x <= this.right) && |
|---|
| 452 | | (y >= this.bottom) && (y <= this.top)); |
|---|
| 453 | | } else { |
|---|
| 454 | | contains = ((x > this.left) && (x < this.right) && |
|---|
| 455 | | (y > this.bottom) && (y < this.top)); |
|---|
| 456 | | } |
|---|
| 457 | | return contains; |
|---|
| 458 | | }, |
|---|
| 459 | | |
|---|
| 460 | | /** |
|---|
| 461 | | * @param {OpenLayers.Bounds} bounds |
|---|
| 462 | | * @param {Boolean} partial If true, only part of passed-in |
|---|
| 463 | | * OpenLayers.Bounds needs be within this bounds. |
|---|
| 464 | | * If false, the entire passed-in bounds must be |
|---|
| 465 | | * within. Default is false |
|---|
| 466 | | * @param {Boolean} inclusive Whether or not to include the border. |
|---|
| 467 | | * Default is true |
|---|
| 468 | | * |
|---|
| 469 | | * @return Whether or not the passed-in OpenLayers.Bounds object is |
|---|
| 470 | | * contained within this bounds. |
|---|
| 471 | | * @type Boolean |
|---|
| 472 | | */ |
|---|
| 473 | | containsBounds:function(bounds, partial, inclusive) { |
|---|
| 474 | | |
|---|
| 475 | | //set defaults |
|---|
| 476 | | if (partial == null) { |
|---|
| 477 | | partial = false; |
|---|
| 478 | | } |
|---|
| 479 | | if (inclusive == null) { |
|---|
| 480 | | inclusive = true; |
|---|
| 481 | | } |
|---|
| 482 | | |
|---|
| 483 | | var inLeft; |
|---|
| 484 | | var inTop; |
|---|
| 485 | | var inRight; |
|---|
| 486 | | var inBottom; |
|---|
| 487 | | |
|---|
| 488 | | if (inclusive) { |
|---|
| 489 | | inLeft = (bounds.left >= this.left) && (bounds.left <= this.right); |
|---|
| 490 | | inTop = (bounds.top >= this.bottom) && (bounds.top <= this.top); |
|---|
| 491 | | inRight= (bounds.right >= this.left) && (bounds.right <= this.right); |
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| 492 | | inBottom = (bounds.bottom >= this.bottom) && (bounds.bottom <= this.top); |
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| 493 | | } else { |
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| 494 | | inLeft = (bounds.left > this.left) && (bounds.left < this.right); |
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| 495 | | inTop = (bounds.top > this.bottom) && (bounds.top < this.top); |
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| 496 | | inRight= (bounds.right > this.left) && (bounds.right < this.right); |
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| 497 | | inBottom = (bounds.bottom > this.bottom) && (bounds.bottom < this.top); |
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| 498 | | } |
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| 499 | | |
|---|
| 500 | | return (partial) ? (inTop || inBottom) && (inLeft || inRight ) |
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| 501 | | : (inTop && inLeft && inBottom && inRight); |
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| 502 | | }, |
|---|
| 503 | | |
|---|
| 504 | | /** |
|---|
| 505 | | * @param {OpenLayers.LonLat} lonlat |
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| 506 | | * |
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| 507 | | * @returns The quadrant ("br" "tr" "tl" "bl") of the bounds in which |
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| 508 | | * the coordinate lies. |
|---|
| 509 | | * @type String |
|---|
| 510 | | */ |
|---|
| 511 | | determineQuadrant: function(lonlat) { |
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| 512 | | |
|---|
| 513 | | var quadrant = ""; |
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| 514 | | var center = this.getCenterLonLat(); |
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| 515 | | |
|---|
| 516 | | quadrant += (lonlat.lat < center.lat) ? "b" : "t"; |
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| 517 | | quadrant += (lonlat.lon < center.lon) ? "l" : "r"; |
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| 518 | | |
|---|
| 519 | | return quadrant; |
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| 520 | | }, |
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| 521 | | |
|---|
| 522 | | /** @final @type String */ |
|---|
| 523 | | CLASS_NAME: "OpenLayers.Bounds" |
|---|
| 524 | | }; |
|---|
| 525 | | |
|---|
| 526 | | /** Alternative constructor that builds a new OpenLayers.Bounds from a |
|---|
| 527 | | * parameter string |
|---|
| 528 | | * |
|---|
| 529 | | * @constructor |
|---|
| 530 | | * |
|---|
| 531 | | * @param {String} str Comma-separated bounds string. (ex. <i>"5,42,10,45"</i>) |
|---|
| 532 | | * |
|---|
| 533 | | * @returns New OpenLayers.Bounds object built from the passed-in String. |
|---|
| 534 | | * @type OpenLayers.Bounds |
|---|
| 535 | | */ |
|---|
| 536 | | OpenLayers.Bounds.fromString = function(str) { |
|---|
| 537 | | var bounds = str.split(","); |
|---|
| 538 | | return OpenLayers.Bounds.fromArray(bounds); |
|---|
| 539 | | }; |
|---|
| 540 | | |
|---|
| 541 | | /** Alternative constructor that builds a new OpenLayers.Bounds |
|---|
| 542 | | * from an array |
|---|
| 543 | | * |
|---|
| 544 | | * @constructor |
|---|
| 545 | | * |
|---|
| 546 | | * @param {Array} bbox Array of bounds values (ex. <i>[5,42,10,45]</i>) |
|---|
| 547 | | * |
|---|
| 548 | | * @returns New OpenLayers.Bounds object built from the passed-in Array. |
|---|
| 549 | | * @type OpenLayers.Bounds |
|---|
| 550 | | */ |
|---|
| 551 | | OpenLayers.Bounds.fromArray = function(bbox) { |
|---|
| 552 | | return new OpenLayers.Bounds(parseFloat(bbox[0]), |
|---|
| 553 | | parseFloat(bbox[1]), |
|---|
| 554 | | parseFloat(bbox[2]), |
|---|
| 555 | | parseFloat(bbox[3])); |
|---|
| 556 | | }; |
|---|
| 557 | | |
|---|
| 558 | | /** Alternative constructor that builds a new OpenLayers.Bounds |
|---|
| 559 | | * from an OpenLayers.Size |
|---|
| 560 | | * |
|---|
| 561 | | * @constructor |
|---|
| 562 | | * |
|---|
| 563 | | * @param {OpenLayers.Size} size |
|---|
| 564 | | * |
|---|
| 565 | | * @returns New OpenLayers.Bounds object built with top and left set to 0 and |
|---|
| 566 | | * bottom right taken from the passed-in OpenLayers.Size. |
|---|
| 567 | | * @type OpenLayers.Bounds |
|---|
| 568 | | */ |
|---|
| 569 | | OpenLayers.Bounds.fromSize = function(size) { |
|---|
| 570 | | return new OpenLayers.Bounds(0, |
|---|
| 571 | | size.h, |
|---|
| 572 | | size.w, |
|---|
| 573 | | 0); |
|---|
| 574 | | }; |
|---|
| 575 | | /** |
|---|
| 576 | | * @param {String} quadrant |
|---|
| 577 | | * |
|---|
| 578 | | * @returns The opposing quadrant ("br" "tr" "tl" "bl"). For Example, if |
|---|
| 579 | | * you pass in "bl" it returns "tr", if you pass in "br" it |
|---|
| 580 | | * returns "tl", etc. |
|---|
| 581 | | * @type String |
|---|
| 582 | | */ |
|---|
| 583 | | OpenLayers.Bounds.oppositeQuadrant = function(quadrant) { |
|---|
| 584 | | var opp = ""; |
|---|
| 585 | | |
|---|
| 586 | | opp += (quadrant.charAt(0) == 't') ? 'b' : 't'; |
|---|
| 587 | | opp += (quadrant.charAt(1) == 'l') ? 'r' : 'l'; |
|---|
| 588 | | |
|---|
| 589 | | return opp; |
|---|
| 590 | | }; |
|---|
| 591 | | |
|---|
| 592 | | // Some other helpful things |
|---|
| 593 | | |
|---|
| 594 | | /** |
|---|
| 595 | | * @param {String} sStart |
|---|
| 596 | | * |
|---|
| 597 | | * @returns Whether or not this string starts with the string passed in. |
|---|
| 598 | | * @type Boolean |
|---|
| 599 | | */ |
|---|
| 600 | | String.prototype.startsWith = function(sStart){ |
|---|
| 601 | | return (this.substr(0,sStart.length) == sStart); |
|---|
| 602 | | }; |
|---|
| 603 | | |
|---|
| 604 | | /** |
|---|
| 605 | | * @param {String} str |
|---|
| 606 | | * |
|---|
| 607 | | * @returns Whether or not this string contains with the string passed in. |
|---|
| 608 | | * @type Boolean |
|---|
| 609 | | */ |
|---|
| 610 | | String.prototype.contains = function(str){ |
|---|
| 611 | | return (this.indexOf(str) != -1); |
|---|
| 612 | | }; |
|---|
| 613 | | |
|---|
| 614 | | /** |
|---|
| 615 | | * @returns A trimmed version of the string - all leading and |
|---|
| 616 | | * trailing spaces removed |
|---|
| 617 | | * @type String |
|---|
| 618 | | */ |
|---|
| 619 | | String.prototype.trim = function() { |
|---|
| 620 | | |
|---|
| 621 | | var b = 0; |
|---|
| 622 | | while(this.substr(b,1) == " ") { |
|---|
| 623 | | b++; |
|---|
| 624 | | } |
|---|
| 625 | | |
|---|
| 626 | | var e = this.length - 1; |
|---|
| 627 | | while(this.substr(e,1) == " ") { |
|---|
| 628 | | e--; |
|---|
| 629 | | } |
|---|
| 630 | | |
|---|
| 631 | | return this.substring(b, e+1); |
|---|
| 632 | | }; |
|---|
| 633 | | |
|---|
| 634 | | /** Remove an object from an array. Iterates through the array |
|---|
| 635 | | * to find the item, then removes it. |
|---|
| 636 | | * |
|---|
| 637 | | * @param {Object} item |
|---|
| 638 | | * |
|---|
| 639 | | * @returns A reference to the array |
|---|
| 640 | | * @type Array |
|---|
| 641 | | */ |
|---|
| 642 | | Array.prototype.remove = function(item) { |
|---|
| 643 | | for(var i=0; i < this.length; i++) { |
|---|
| 644 | | if(this[i] == item) { |
|---|
| 645 | | this.splice(i,1); |
|---|
| 646 | | //break;more than once?? |
|---|
| 647 | | } |
|---|
| 648 | | } |
|---|
| 649 | | return this; |
|---|
| 650 | | } |
|---|
| 651 | | |
|---|
| 652 | | /** |
|---|
| 653 | | * @deprecated |
|---|
| 654 | | * |
|---|
| 655 | | * @returns A fresh copy of the array |
|---|
| 656 | | * @type Array |
|---|
| 657 | | */ |
|---|
| 658 | | Array.prototype.copyOf = function() { |
|---|
| 659 | | return this.clone(); |
|---|
| 660 | | }; |
|---|
| 661 | | |
|---|
| 662 | | /** |
|---|
| 663 | | * @returns A fresh copy of the array |
|---|
| 664 | | * @type Array |
|---|
| 665 | | */ |
|---|
| 666 | | Array.prototype.clone = function() { |
|---|
| 667 | | var clone = new Array(); |
|---|
| 668 | | for (var i = 0; i < this.length; i++) { |
|---|
| 669 | | clone[i] = this[i]; |
|---|
| 670 | | } |
|---|
| 671 | | return clone; |
|---|
| 672 | | }; |
|---|
| 673 | | |
|---|
| 674 | | /** |
|---|
| 675 | | */ |
|---|
| 676 | | Array.prototype.clear = function() { |
|---|
| 677 | | this.length = 0; |
|---|
| 678 | | }; |
|---|
| 679 | | |
|---|
| 680 | | |
|---|
| 681 | | /** NOTE: Works only with integer values does *not* work with floats! |
|---|
| 682 | | * |
|---|
| 683 | | * @param {int} sig |
|---|
| 684 | | * |
|---|
| 685 | | * @returns The number, rounded to the specified number of significant digits. |
|---|
| 686 | | * If null, 0, or negaive value passed in, returns 0 |
|---|
| 687 | | * @type int |
|---|
| 688 | | */ |
|---|
| 689 | | Number.prototype.limitSigDigs = function(sig) { |
|---|
| 690 | | var number = (sig > 0) ? this.toString() : 0; |
|---|
| 691 | | if (sig < number.length) { |
|---|
| 692 | | var exp = number.length - sig; |
|---|
| 693 | | number = Math.round( this / Math.pow(10, exp)) * Math.pow(10, exp); |
|---|
| 694 | | } |
|---|
| 695 | | return parseInt(number); |
|---|
| 696 | | } |
|---|