.TH ISMcont2dig
.SH NAME
\fIISMcont2dig\fR \- Converts a binary ISM contour data file to a binary
GRASS vector (dig) file.
.br
.I (GRASS Vector Data Import Program)
.SH SYNOPSIS
\fBISMcont2dig\fR
.br
\fBISMcont2dig help\fR
.br
\fBISMcont2dig\fR \fBinput\*=\fIname \fBoutput\*=\fIname\fR
.SH DESCRIPTION
This program converts a binary ISM contour data file into a binary
GRASS vector (\fIdig\fR) file.
\fIISMcont2dig\fR also creates a \fIdig_att\fR file containing the label
information from the ISM contour file.
However, the user must run \fIv.support\fR (or \fIv.import\fR option 4)
on the \fIoutput\fR file created by \fIISMcont2dig\fR to create a
\fIdig_plus\fR file containing the file topology, before using the
\fIoutput\fR file in \fIv.digit\fR.
.LP
.SH COMMAND LINE OPTIONS
\fBParameters:\fR
.IP \fBinput\*=\fIname\fR 18
Name of binary ISM contour data input file.
.IP \fBoutput\*=\fIname\fR 18
Name to be assigned to the binary GRASS vector files created.
.LP
If the user simply types \fIISMcont2dig\fR without specifying parameter
values on the command line, the program will prompt the user to enter these.
.SH NOTES
.LP
To create a contour file from ISM for use by \fIISMcont2dig\fR, turn on option
7 (contour output file) under CONTOUR/BASE MAP OPTIONS.  To achieve better 
contour resolution, also change options 12 and 13 (minimum separation) under 
this same menu to some minimum number such as .00001.  The ISM user may wish to
save these options as an ISM options file.  Plot the map as usual.  At run 
time, ISM will prompt the user for a filename and ask whether the contour 
output format should be binary (default) or ASCII.  Only BINARY contour files 
may be used by \fIISMcont2dig\fR.
.br
.LP
Interactive Surface Modeling (ISM) is a trademark of Dynamic Graphics, Inc.,
Berkeley, California.

.SH SEE ALSO
.I ISMdig2ann,
.I ISMann2dig,
.I ISMcell2grd,
.I ISMgrd2cell,
.I ISMcell2scat,
.I v.support,
.I v.import,
.I v.digit
.SH AUTHOR
Dave Gerdes, U.S. Army Construction Engineering Research Laboratory