| 248 | |
| 249 | |
| 250 | class Distance(MeasureBase): |
| 251 | STANDARD_UNIT = "m" |
| 252 | UNITS = { |
| 253 | "chain": 20.1168, |
| 254 | "chain_benoit": 20.116782, |
| 255 | "chain_sears": 20.1167645, |
| 256 | "british_chain_benoit": 20.1167824944, |
| 257 | "british_chain_sears": 20.1167651216, |
| 258 | "british_chain_sears_truncated": 20.116756, |
| 259 | "cm": 0.01, |
| 260 | "british_ft": 0.304799471539, |
| 261 | "british_yd": 0.914398414616, |
| 262 | "clarke_ft": 0.3047972654, |
| 263 | "clarke_link": 0.201166195164, |
| 264 | "fathom": 1.8288, |
| 265 | "ft": 0.3048, |
| 266 | "furlong": 201.168, |
| 267 | "german_m": 1.0000135965, |
| 268 | "gold_coast_ft": 0.304799710181508, |
| 269 | "indian_yd": 0.914398530744, |
| 270 | "inch": 0.0254, |
| 271 | "km": 1000.0, |
| 272 | "link": 0.201168, |
| 273 | "link_benoit": 0.20116782, |
| 274 | "link_sears": 0.20116765, |
| 275 | "m": 1.0, |
| 276 | "mi": 1609.344, |
| 277 | "mm": 0.001, |
| 278 | "nm": 1852.0, |
| 279 | "nm_uk": 1853.184, |
| 280 | "rod": 5.0292, |
| 281 | "sears_yd": 0.91439841, |
| 282 | "survey_ft": 0.304800609601, |
| 283 | "um": 0.000001, |
| 284 | "yd": 0.9144, |
| 285 | } |
| 286 | |
| 287 | # Unit aliases for `UNIT` terms encountered in Spatial Reference WKT. |
| 288 | ALIAS = { |
| 289 | "centimeter": "cm", |
| 290 | "foot": "ft", |
| 291 | "inches": "inch", |
| 292 | "kilometer": "km", |
| 293 | "kilometre": "km", |
| 294 | "meter": "m", |
| 295 | "metre": "m", |
| 296 | "micrometer": "um", |
| 297 | "micrometre": "um", |
| 298 | "millimeter": "mm", |
| 299 | "millimetre": "mm", |
| 300 | "mile": "mi", |
| 301 | "yard": "yd", |
| 302 | "British chain (Benoit 1895 B)": "british_chain_benoit", |
| 303 | "British chain (Sears 1922)": "british_chain_sears", |
| 304 | "British chain (Sears 1922 truncated)": "british_chain_sears_truncated", |
| 305 | "British foot (Sears 1922)": "british_ft", |
| 306 | "British foot": "british_ft", |
| 307 | "British yard (Sears 1922)": "british_yd", |