Knowledge

Linear scale

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While linear scales are used on architectural and engineering drawings, particularly those that are drawn after the subject has been built, many such drawings do not have a linear scale and are marked "Do Not Scale Drawing" in recognition of the fact that paper size changes with environmental changes
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On large scale maps and charts, those covering a small area, and engineering and architectural drawings, the linear scale can be very simple, a line marked at intervals to show the distance on the earth or object which the distance on the scale represents. A person using the map can use a pair of
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dividers (or, less precisely, two fingers) to measure a distance by comparing it to the linear scale. The length of the line on the linear scale is equal to the distance represented on the earth multiplied by the map or chart's scale.
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whose scale varies substantially with latitude, linear scales are not used on charts with scales smaller than approximately 1/80,000. Mariners generally use the
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defined only "bar scale" in its 1962 Glossary, but added a reference to "graphic scale" by its 2002 edition. Dutton used both terms in 1978. The
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Linear scale in both feet and metres in the center of an engineering drawing. The drawing was made 130 years after the bridge was built.
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uses "scale" to describe a linear scale and avoids confusion by using "natural scale" for the fraction defined at
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and only dimensions that are specifically shown on the drawing can be used reliably in precise manufacturing.
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The cited book incorporates IHO Chart INT 1 and therefore represents the practice of the members of the
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The terms "bar scale", "graphic scale", "graphical scale", "linear scale", and "scale" are all used.
98: 17: 241:(2002 ed.). Washington: National Imagery and Mapping Agency. pp. 34–35. Archived from 35: 94: 428: 8: 206: 119: 90: 366: 318: 260: 150:, showing, graphically, the change of scale with latitude. Each unit on the map at the 386: 30:
This article is about the graphical representation. For a map mathematical scale, see
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A linear scale showing that one centimetre on the map corresponds to six kilometres
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An architectural drawing with a simple linear scale showing feet and half feet.
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represents the same distance on the earth as 5.9 units at 80° latitude.
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Do a web search on "Do not scale drawing" to see many examples.
313:(1962 ed.). Washington: U.S. Navy Hydrographic Office. 214:(useful e.g. when the data covers a large range of values) 394: 82: 118:
Since most nautical charts are constructed using the
411:. Taunton: The Hydrographer of the Navy. p. 33. 391:. Jointly by NOAA and Department of Commerce, USA. 338:Bowditch, Nathaniel, LLD; et al. "Glossary". 309:Bowditch, Nathaniel, LLD; et al. "Glossary". 420: 388:Chart No. 1, Chart Number, Title, Marginal Notes 407:Lt. Cmdr. C.J. de C. Scott, R.N., ed. (1973). 27:Graphical representation of the scale of a map 371:: CS1 maint: multiple names: authors list ( 323:: CS1 maint: multiple names: authors list ( 265:: CS1 maint: multiple names: authors list ( 225: 331: 302: 278: 276: 163: 48: 40: 282: 180:International Hydrographic Organization 14: 421: 232:Bowditch, Nathaniel, LLD; et al. 273: 77:, is a means of visually showing the 337: 308: 231: 291: 97:. A scale bar is common element of 24: 379: 285:Dutton's Navigation & Piloting 25: 450: 400: 397:, most of the seafaring nations. 341:The American Practical Navigator 311:The American Practical Navigator 235:The American Practical Navigator 135: 159: 186:uses only "linear scale". The 13: 1: 218: 7: 283:Maloney, Elbert S. (1978). 200: 10: 455: 29: 146:The scale from a large 409:The Mariner's Handbook 169: 54: 46: 34:. For other uses, see 167: 95:architectural drawing 52: 44: 111:, scale varies with 188:British Admiralty's 120:Mercator projection 91:engineering drawing 191:Mariner's Handbook 170: 55: 47: 434:Technical drawing 212:Logarithmic scale 16:(Redirected from 446: 413: 412: 404: 398: 392: 383: 377: 376: 370: 362: 360: 359: 353: 346: 335: 329: 328: 322: 314: 306: 300: 295: 289: 288: 280: 271: 270: 264: 256: 254: 253: 247: 240: 229: 207:Engineer's scale 139: 61:, also called a 21: 454: 453: 449: 448: 447: 445: 444: 443: 419: 418: 417: 416: 405: 401: 385: 384: 380: 364: 363: 357: 355: 351: 344: 336: 332: 316: 315: 307: 303: 296: 292: 281: 274: 258: 257: 251: 249: 245: 238: 230: 226: 221: 203: 162: 157: 156: 155: 145: 140: 75:graphical scale 39: 28: 23: 22: 15: 12: 11: 5: 452: 442: 441: 436: 431: 415: 414: 399: 378: 330: 301: 290: 272: 223: 222: 220: 217: 216: 215: 209: 202: 199: 161: 158: 142: 141: 134: 133: 132: 87:nautical chart 26: 9: 6: 4: 3: 2: 451: 440: 437: 435: 432: 430: 427: 426: 424: 410: 403: 396: 390: 389: 382: 374: 368: 354:on 2017-05-17 350: 343: 342: 334: 326: 320: 312: 305: 299: 294: 286: 279: 277: 268: 262: 248:on 2012-03-15 244: 237: 236: 228: 224: 213: 210: 208: 205: 204: 198: 196: 192: 189: 185: 181: 177: 176: 166: 153: 149: 144: 138: 131: 127: 125: 124:nautical mile 121: 116: 114: 110: 105: 101: 100: 96: 92: 88: 84: 80: 76: 72: 71:graphic scale 68: 64: 60: 51: 43: 37: 33: 19: 408: 402: 387: 381: 356:. Retrieved 349:the original 340: 333: 310: 304: 293: 284: 250:. Retrieved 243:the original 234: 227: 190: 183: 173: 171: 160:Nomenclature 128: 117: 106: 102: 99:map layouts. 74: 70: 66: 62: 59:linear scale 58: 56: 429:Cartography 195:scale (map) 184:Chart No. 1 109:projections 32:Scale (map) 423:Categories 358:2010-11-16 252:2010-11-16 219:References 367:cite book 319:cite book 261:cite book 148:world map 67:scale bar 63:bar scale 18:Scale bar 201:See also 175:Bowditch 113:latitude 107:In most 152:equator 439:Scales 352:(PDF) 345:(PDF) 246:(PDF) 239:(PDF) 93:, or 81:of a 79:scale 73:, or 36:Scale 373:link 325:link 267:link 395:IHO 182:'s 83:map 425:: 369:}} 365:{{ 321:}} 317:{{ 275:^ 263:}} 259:{{ 197:. 89:, 85:, 69:, 65:, 57:A 375:) 361:. 327:) 269:) 255:. 38:. 20:)

Index

Scale bar
Scale (map)
Scale


scale
map
nautical chart
engineering drawing
architectural drawing
map layouts.
projections
latitude
Mercator projection
nautical mile


world map
equator

Bowditch
International Hydrographic Organization
British Admiralty's
scale (map)
Engineer's scale
Logarithmic scale
The American Practical Navigator
the original
cite book
link

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