t.vect.what.strds(1grass)

1t.vect.what.strds(1)          Grass User's Manual         t.vect.what.strds(1)
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NAME

6       t.vect.what.strds   -  Stores raster map values at spatial and temporal
7       positions of vector points as vector attributes.
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KEYWORDS

10       temporal, sampling, vector, time
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SYNOPSIS

13       t.vect.what.strds
14       t.vect.what.strds --help
15       t.vect.what.strds input=name strds=name  [column=string]  method=string
16       [where=sql_query]     [t_where=sql_query]    [sampling=name[,name,...]]
17       [--help]  [--verbose]  [--quiet]  [--ui]
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19   Flags:
20       --help
21           Print usage summary
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23       --verbose
24           Verbose module output
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26       --quiet
27           Quiet module output
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29       --ui
30           Force launching GUI dialog
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32   Parameters:
33       input=name [required]
34           Name of the input space time vector dataset
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36       strds=name [required]
37           Name of the input space time raster dataset
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39       column=string
40           Name of the vector column to be created and to store sampled raster
41           values
42           The  use  of  a  column name forces t.vect.what.rast to sample only
43           values from the first map  found  in  an  interval.  Otherwise  the
44           raster map names are used as column names
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46       method=string [required]
47           Aggregate operation to be performed on the raster maps
48           Options:   disabled,   average,   count,   median,  mode,  minimum,
49           min_raster, maximum,  max_raster,  stddev,  range,  sum,  variance,
50           diversity,  slope,  offset, detcoeff, quart1, quart3, perc90, quan‐
51           tile, skewness, kurtosis
52           Default: disabled
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54       where=sql_query
55           WHERE conditions of SQL statement without ’where’ keyword
56           Example: income < 1000 and population >= 10000
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58       t_where=sql_query
59           WHERE conditions of SQL statement without ’where’ keyword  used  in
60           the temporal GIS framework
61           Example: start_time > ’2001-01-01 12:30:00’
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63       sampling=name[,name,...]
64           The method to be used for sampling the input dataset
65           Options: start, during, overlap, contain, equal, follows, precedes
66           Default: start
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DESCRIPTION

69       The  module  t.vect.what.strds  samples  a  space  time  raster dataset
70       (STRDS) at the spatio-temporal locations of a space time vector dataset
71       (STVDS).
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EXAMPLE

74       The  example  is  based  on  the space time vector dataset "precip_sta‐
75       tions@climate_2009_2012" created in the  t.vect.observe.strds  example.
76       In  the  example below, the module fills the new column "new_temp" with
77       values extracted from the "tempmean_monthly" space time raster dataset:
78       t.vect.what.strds input=precip_stations@climate_2009_2012 \
79                         strds=tempmean_monthly@climate_2009_2012 \
80                         column=new_temp method=average
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AUTHOR

87       Sören Gebbert, Thünen Institute of Climate-Smart Agriculture
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89       Last changed: $Date: 2016-10-27 23:20:55 +0200 (Thu, 27 Oct 2016) $
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SOURCE CODE

92       Available at: t.vect.what.strds source code (history)
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94       Main index | Temporal index | Topics index | Keywords index | Graphical
95       index | Full index
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97       © 2003-2019 GRASS Development Team, GRASS GIS 7.4.4 Reference Manual
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101GRASS 7.4.4                                               t.vect.what.strds(1)