.TH v.report 1grass "" "GRASS 6.4.4" "Grass User's Manual"
.SH NAME
\fI\fBv.report\fR\fR  - Reports geometry statistics for vectors.
.SH KEYWORDS
vector, report, statistics
.SH SYNOPSIS
\fBv.report\fR
.br
\fBv.report help\fR
.br
\fBv.report\fR [\-\fBrs\fR] \fBmap\fR=\fIstring\fR  [\fBlayer\fR=\fIinteger\fR]  \fBoption\fR=\fIstring\fR  [\fBunits\fR=\fIstring\fR]   [\-\-\fBverbose\fR]  [\-\-\fBquiet\fR] 
.SS Flags:
.IP "\fB\-r\fR" 4m
.br
Reverse sort the result
.IP "\fB\-s\fR" 4m
.br
Sort the result
.IP "\fB\-\-verbose\fR" 4m
.br
Verbose module output
.IP "\fB\-\-quiet\fR" 4m
.br
Quiet module output
.PP
.SS Parameters:
.IP "\fBmap\fR=\fIstring\fR" 4m
.br
Name of input vector map
.IP "\fBlayer\fR=\fIinteger\fR" 4m
.br
Layer number
.br
Default: \fI1\fR
.IP "\fBoption\fR=\fIstring\fR" 4m
.br
Value to calculate
.br
Options: \fIarea,length,coor\fR
.IP "\fBunits\fR=\fIstring\fR" 4m
.br
mi(les),f(eet),me(ters),k(ilometers),a(cres),h(ectares),p(ercent)
.br
Options: \fImi,miles,f,feet,me,meters,k,kilometers,a,acres,h,hectares,p,percent\fR
.PP
.SH DESCRIPTION
\fIv.report\fR generates a table showing the area present in 
each of the categories of a user-selected data layer.
.PP
Area is given in hectares, square meters, and square kilometers.
If the units option is used, area is given in acres, square feet,
and square miles.
.PP
Feet and acre units are always reported in their common versions
(i.e. the International Foot, exactly 5280 feet in a mile), even
when the location's standard map unit is the US Survey foot.
.PP
\fIv.report\fR works on the full map data; therefore, the current
region is ignored. If you wish to spatially limit the statistics,
a map subset must be created with \fIv.in.region\fR and 
\fIv.overlay\fR, and then run \fIv.report\fR on the new map.
.SH EXAMPLE
North Carolina sample dataset:
\fC
.DS
.br
v.report zipcodes_wake option=area units=hectares
.br
.DE
\fR
In the output, there is an extra column added containing the results.
.SH SEE ALSO
\fI
v.in.region,
v.to.db,
v.overlay
\fR
.SH AUTHOR
Markus Neteler, GDF Hannover
.PP
\fILast changed: $Date: 2011-11-08 10:42:51 +0100 (Tue, 08 Nov 2011) $\fR
.PP
Full index
.PP
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