1v.select(1)                   Grass User's Manual                  v.select(1)
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NAME

6       v.select  - Select features from ainput by features from binput
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KEYWORDS

9       vector
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SYNOPSIS

12       v.select
13       v.select help
14       v.select  [-t] ainput=name  [atype=string[,string,...]]   [alayer=inte‐
15       ger]  binput=name  [btype=string[,string,...]]   [blayer=integer]  out‐
16       put=name  [operator=string]   [--overwrite]
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18   Flags:
19       -t  Do not create attribute table
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21       --overwrite
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23   Parameters:
24       ainput=name
25           Name of input vector map
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27       atype=string[,string,...]
28           Type     Options:     point,line,boundary,centroid,area    Default:
29           point,line,boundary,centroid,area
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31       alayer=integer
32           Layer number Default: 1
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34       binput=name
35           Name of input vector map
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37       btype=string[,string,...]
38           Type    Options:     point,line,boundary,centroid,area     Default:
39           point,line,boundary,centroid,area
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41       blayer=integer
42           Layer number Default: 1
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44       output=name
45           Name for output vector map
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47       operator=string
48           Operator  defines  required relation between features. A feature is
49           written to output if the result of operation 'ainput operator  bin‐
50           put'  is  true. An input feature is considered to be true, if cate‐
51           gory of given layer is defined.
52                 overlap: features partially or  completely  overlap  Options:
53           overlap Default: overlap
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DESCRIPTION

56       v.select  allows  the user to select features from a vector by features
57       from another one.
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NOTES

EXAMPLES
61       Extract forest fire points from larger fire map:
62       v.select ainput=fire binput=forest output=forest_fire
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64
65       Extract Italian rivers from VMAP0 watercourses map:
66       v.select ain=watrcrsl_eurnasia_wgs84 bin=italy_area \
67                out=watrcrsl_italy op=overlap
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69

SEE ALSO
71        v.overlay, GRASS SQL interface
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AUTHORS
74       Radim Blazek
75
76       Last changed: $Date: 2007/03/22 08:00:33 $
77
78       Full index
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82GRASS 6.2.2                                                        v.select(1)



        

    


            
        

        

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