.TH v.build 1grass "" "GRASS 6.4.2" "Grass User's Manual"
.SH NAME
\fI\fBv.build\fR\fR  - Creates topology for GRASS vector map.
.SH KEYWORDS
vector, topology
.SH SYNOPSIS
\fBv.build\fR
.br
\fBv.build help\fR
.br
\fBv.build map\fR=\fIname\fR  [\fBerror\fR=\fIname\fR]   [\fBoption\fR=\fIstring\fR[,\fIstring\fR,...]]   [--\fBoverwrite\fR]  [--\fBverbose\fR]  [--\fBquiet\fR] 
.SS Flags:
.IP "\fB--overwrite\fR" 4m
.br
Allow output files to overwrite existing files
.IP "\fB--verbose\fR" 4m
.br
Verbose module output
.IP "\fB--quiet\fR" 4m
.br
Quiet module output
.PP
.SS Parameters:
.IP "\fBmap\fR=\fIname\fR" 4m
.br
Name of input vector map
.IP "\fBerror\fR=\fIname\fR" 4m
.br
Name for vector map where erroneous vector features are written to
.IP "\fBoption\fR=\fIstring[,\fIstring\fR,...]\fR" 4m
.br
Build topology or dump topology or spatial index to stdout
.br
Options: \fIbuild,dump,sdump,cdump\fR
.br
Default: \fIbuild\fR
.br
\fBbuild\fR: build topology
.br
\fBdump\fR: write topology to stdout
.br
\fBsdump\fR: write spatial index to stdout
.br
\fBcdump\fR: write category index to stdout
.PP
.SH DESCRIPTION
\fIv.build\fR builds support files for (binary)
GRASS vector data files.  These support files supply
topology and category information that are needed by other
GRASS modules.
.PP
GRASS is generating these support files automatically,
only in rare cases the user has to (re)build them.
.PP
Refer to
\fIVector data processing in GRASS GIS\fR
for more information on GRASS GIS vector data model.
.SH NOTES
\fIv.build\fR creates support files only for binary
vector maps located in the user's current mapset. If vector map 
is located in another mapset, you need to specify this:
.PP
\fC
.DS
.br
v.build map=geology@PERMANENT
.br
.DE
\fR
.PP
In case of errors, the user can optionally generate an \fIerror\fR
vector map containing the erroneous vectors for later inspection.
.SH SEE ALSO
\fIv.build.polylines\fR
.SH AUTHORS
Dave Gerdes, U.S.Army Construction Engineering 
Research Laboratory,
.br
Michael Higgins,
U.S.Army Construction Engineering 
Research Laboratory,
.br
Radim Blazek, ITC-irst, Trento, Italy
.PP
\fILast changed: $Date: 2011-11-08 10:42:51 +0100 (Tue, 08 Nov 2011) $\fR
.PP
Full index
.PP
© 2003-2011 GRASS Development Team