.TH v.in.mapgen 1grass "" "GRASS 7.8.5" "GRASS GIS User's Manual"
.SH NAME
\fI\fBv.in.mapgen\fR\fR  \- Imports Mapgen or Matlab\-ASCII vector maps into GRASS.
.SH KEYWORDS
vector, import
.SH SYNOPSIS
\fBv.in.mapgen\fR
.br
\fBv.in.mapgen \-\-help\fR
.br
\fBv.in.mapgen\fR [\-\fBfz\fR] \fBinput\fR=\fIname\fR  [\fBoutput\fR=\fIname\fR]   [\-\-\fBoverwrite\fR]  [\-\-\fBhelp\fR]  [\-\-\fBverbose\fR]  [\-\-\fBquiet\fR]  [\-\-\fBui\fR]
.SS Flags:
.IP "\fB\-f\fR" 4m
.br
Input map is in Matlab format
.IP "\fB\-z\fR" 4m
.br
Create a 3D vector points map from 3 column Matlab data
.IP "\fB\-\-overwrite\fR" 4m
.br
Allow output files to overwrite existing files
.IP "\fB\-\-help\fR" 4m
.br
Print usage summary
.IP "\fB\-\-verbose\fR" 4m
.br
Verbose module output
.IP "\fB\-\-quiet\fR" 4m
.br
Quiet module output
.IP "\fB\-\-ui\fR" 4m
.br
Force launching GUI dialog
.SS Parameters:
.IP "\fBinput\fR=\fIname\fR \fB[required]\fR" 4m
.br
Name of input file in Mapgen/Matlab format
.IP "\fBoutput\fR=\fIname\fR" 4m
.br
Name for output vector map (omit for display to stdout)
.SH DESCRIPTION
\fIv.in.mapgen\fR allows the user to import Mapgen or Matlab vector maps
into GRASS.
.SH NOTES
This module only imports data into vector lines.
.PP
The user can get coastline data in Mapgen or Matlab format from NOAA\(cqs Coastline
Extractor at http://www.ngdc.noaa.gov/mgg/shorelines/shorelines.html.
.PP
Matlab vector line maps are simply a series of \(dqx y\(dq data points. Lines
are separated by a row containing NaN NaN.
Output from Matlab with this command:
.br
.br
.nf
\fC
    save filename.txt arrayname \-ASCII
\fR
.fi
.PP
The user can import 3D lines from Matlab by exporting a 3 column array and
using the \fB\-z\fR flag.
.SH SEE ALSO
\fIv.in.ascii\fR
.SH AUTHORS
Based on \fIv.in.mapgen.sh\fR for GRASS 5.0 by Andreas Lange
.br
Rewritten for GRASS 6 by Hamish Bowman
.SH SOURCE CODE
.PP
Available at: v.in.mapgen source code (history)
.PP
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.PP
© 2003\-2020
GRASS Development Team,
GRASS GIS 7.8.5 Reference Manual