in their daily file naming? I'm thinking of adopting the practice - Pros/ cons?
my sokkia gps software uses Julian dates for it's files.
I really think a 13 month system with 28 days would be the way to go. One day for New Years. On Leap Year we would get 2.
I have a Julian Calendar on the wall for quick conversion. I want to remake it for quicker conversion. (on that list of neat things to do...)
I would name the new month Julian. It would be June, July, Julian.
I have an app on my phone for converting to Julian dates. It was very helpful when I was using Promark 3 receivers.
I have not check to see if my OPUSX90 receivers reference the Julian day or not. I know my Topcon Hipers do not.
Back in the DOS Era it made perfect sense. It still does in certain work flows. I am combining data from multiple sources right now. The Julian date folders and file names make it simple...
we us a reverse date in our filenames eg: 20141216
easy to comprehend and the computer automatically keeps the list in order
:good:
That's the way Dougie does it too.
> in their daily file naming? I'm thinking of adopting the practice - Pros/ cons?
We use a letter followed by the Julian date for all our point numbers. (ie K248001, K248002 etc..) Works great with multiple data collectors storing hundreds of shots in multiple tasks in multiple files every day year after year on the same project.
>
> We use a letter followed by the Julian date for all our point numbers. (ie K248001, K248002 etc..) Works great with multiple data collectors storing hundreds of shots in multiple tasks in multiple files every day year after year on the same project.
I can see a lot of merit in that practice.
I would point out that strictly speaking, a Julian Date is the number of days since January 1st, 4713 BC. Somehow it has become common practice to refer to the day of the year as a Julian Date, but it not really the correct usage of the term. Today is JD 2457002.5 (since the time scale started at 12:00 noon on that day in 4713 BC), but it is DOY 345 of 2014.
Julian dates: Unix-Linux
For those who have access to Unix or Linux use the command:[pre]
cal -j 2014
2014
January February
S M Tu W Th F S S M Tu W Th F S
1 2 3 4 32
5 6 7 8 9 10 11 33 34 35 36 37 38 39
12 13 14 15 16 17 18 40 41 42 43 44 45 46
19 20 21 22 23 24 25 47 48 49 50 51 52 53
26 27 28 29 30 31 54 55 56 57 58 59
March April
S M Tu W Th F S S M Tu W Th F S
60 91 92 93 94 95
61 62 63 64 65 66 67 96 97 98 99 100 101 102
68 69 70 71 72 73 74 103 104 105 106 107 108 109
75 76 77 78 79 80 81 110 111 112 113 114 115 116
82 83 84 85 86 87 88 117 118 119 120
89 90
May June
S M Tu W Th F S S M Tu W Th F S
121 122 123 152 153 154 155 156 157 158
124 125 126 127 128 129 130 159 160 161 162 163 164 165
131 132 133 134 135 136 137 166 167 168 169 170 171 172
138 139 140 141 142 143 144 173 174 175 176 177 178 179
145 146 147 148 149 150 151 180 181
July August
S M Tu W Th F S S M Tu W Th F S
182 183 184 185 186 213 214
187 188 189 190 191 192 193 215 216 217 218 219 220 221
194 195 196 197 198 199 200 222 223 224 225 226 227 228
201 202 203 204 205 206 207 229 230 231 232 233 234 235
208 209 210 211 212 236 237 238 239 240 241 242
243
September October
S M Tu W Th F S S M Tu W Th F S
244 245 246 247 248 249 274 275 276 277
250 251 252 253 254 255 256 278 279 280 281 282 283 284
257 258 259 260 261 262 263 285 286 287 288 289 290 291
264 265 266 267 268 269 270 292 293 294 295 296 297 298
271 272 273 299 300 301 302 303 304
November December
S M Tu W Th F S S M Tu W Th F S
305 335 336 337 338 339 340
306 307 308 309 310 311 312 341 342 343 344 345 346 347
313 314 315 316 317 318 319 348 349 350 351 352 353 354
320 321 322 323 324 325 326 355 356 357 358 359 360 361
327 328 329 330 331 332 333 362 363 364 365
334[/pre]
Awesome.
Too bad we are more likely to see metric take over.
I get complaints from some of the staff. Oh we cannot see the date in that string!
So I have compromised to 2014-1211.
> I would point out that strictly speaking, a Julian Date is the number of days since January 1st, 4713 BC. Somehow it has become common practice to refer to the day of the year as a Julian Date, but it not really the correct usage of the term. Today is JD 2457002.5 (since the time scale started at 12:00 noon on that day in 4713 BC), but it is DOY 345 of 2014.
Yep. The first time is saw this I was scratchin my head..
Command: setvar
Enter variable name or [?] :
DATE = 2457003.54342728 (read only)
"Too bad we are more likely to see metric take over."
Never heard of metric dating - to what are you referring?
Sorry to be cryptic. You know that push to use that system widely used in Europe and most of the rest of the world.
Exactly as we do it here,
Year-Month-Day
2014-12-11
Chr.
"Metric" Calendar
>Never heard of metric dating - to what are you referring?
The revolutionary system was designed in part to remove all religious and royalist influences from the calendar, and was part of a larger attempt at decimalisation in France (which also included decimal time of day, decimalisation of currency, and metrication).
http://en.wikipedia.org/wiki/French_Republican_Calendar
"Metric" Calendar
I enjoyed Robert Grudin's case for the metric calendar in Time and the Art of Living, not that it will ever take hold. I picked up that Grudin book after you quoted him a while back. It's a remarkable book with no contemporary comparison.