1r3.timestamp(1) Grass User's Manual r3.timestamp(1)
2
6 r3.timestamp - print/add/remove a timestamp for a 3D raster map
7
9 raster3d, voxel
10
12 r3.timestamp
13 r3.timestamp help
14 r3.timestamp map=string [date=timestamp]
15 Parameters:
17 map=string
18 input grid3 filename
19 date=timestamp
21 datetime, datetime1/datetime2, or none
22
24 This command has 2 modes of operation. If no date argument is supplied,
25 then the current timestamp for the grid3d map is printed. If a date
26 argument is specified, then the timestamp for the grid3d map is set to
27 the specified date(s). See EXAMPLES below.
28
30 r3.timestamp map=soils
31 Prints the timestamp for the "soils" grid3d map. If there is no time‐
32 stamp for soils, nothing is printed. If there is a timestamp, one or
33 two lines are printed, depending on if the timestamp for the map con‐
34 sists of a single date or two dates (ie start and end dates).
35 r3.timestamp map=soils date='15 sep 1987'
37 Sets the timestamp for "soils" to the single date
38 "15 sep 1987"
39 r3.timestamp map=soils date='15 sep 1987/20 feb 1988'
41 Sets the timestamp for "soils" to have the start date
42 "15 sep 1987" and the end date "20 feb 1988"
43 r3.timestamp map=soils date='18 feb 2005 10:30:00/20 jul 2007
45 20:30:00'
46 Sets the timestamp for "soils" to have the start date
47 "18 aug 2005 10:30:00" and the end date "20 jul 2007 20:30:00"
48 r3.timestamp map=soils date=none
50 Removes the timestamp for the "soils" grid3d map
51
53 The timestamp values must use the format as described in the GRASS
54 datetime library. The source tree for this library should have a
55 description of the format. For convience, the formats as of Feb, 1996
56 are reproduced here:
57 There are two types of datetime values: absolute and relative. Absolute
59 values specify exact dates and/or times. Relative values specify a
60 span of time. Some examples will help clarify:
61 Absolute
63 The general format for absolute values is
65 day month year [bc] hour:minute:seconds timezone
67 day is 1-31
69 month is jan,feb,...,dec
70 year is 4 digit year
71 [bc] if present, indicates dates is BC
72 hour is 0-23 (24 hour clock)
73 mintue is 0-59
74 second is 0-59.9999 (fractions of second allowed)
75 timezone is +hhmm or -hhmm (eg, -0600)
76 parts can be missing
78 1994 [bc]
80 Jan 1994 [bc]
81 15 jan 1000 [bc]
82 15 jan 1994 [bc] 10 [+0000]
83 15 jan 1994 [bc] 10:00 [+0100]
84 15 jan 1994 [bc] 10:00:23.34 [-0500]
85 Relative There are two types of relative datetime values, year- month
87 and day-second. The formats are:
88 [-] # years # months
90 [-] # days # hours # minutes # seconds
91 The words years, months, days, hours, minutes, seconds are literal
93 words, and the # are the numeric values.
94 Examples:
95 2 years
97 5 months
98 2 years 5 months
99 100 days
100 15 hours 25 minutes 35.34 seconds
101 100 days 25 minutes
102 1000 hours 35.34 seconds
103 The following are illegal because it mixes year-month and day-second
105 (because the number of days in a month or in a year vary):
106 3 months 15 days
108 3 years 10 days
109
111 Spaces in the timestamp value are required.
112
114 Michael Pelizzari
115 Lockheed Martin Space Systems
116 based on r.timestamp by Michael Shapiro,
117 U.S.Army Construction Engineering Research Laboratory
118 Last changed: $Date: 2005/08/23 12:11:00 $
120 Full index
122GRASS 6.2.2 r3.timestamp(1)