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#!/usr/bin/perl
#
#
# Copyright (C) 2006-2012 Tom Russo
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# see file COPYING for details
#--------------------------------------------------------------------------
# This script produces an ESRI point shapefile from an APRS overlay
# file (*.pos), according to the "Rolling your own shapefile maps"
# section of README.MAPS The point file will display using the TIGER
# Landmark Point dbfawk file.
#
# This enables fast generation of point maps in Shapefile format
# from APRS overlay files.
#
# Typical usage:
# pos2shp.pl file.pos myshape
#--------------------------------------------------------------------------
if ($#ARGV != 1)
{
print "Usage: $0 <file.pos> <shapefile base name>\n";
exit 1;
}
open(INOBJ,"<$ARGV[0]") || die "Cannot open input overlay file $ARGV[0]\n";
$cmd[0]="shpcreate $ARGV[1] point";
$cmd[1]="dbfcreate $ARGV[1] -n ID 8 0 -s CFCC 4 -s NAME 30";
$outfile=$ARGV[1];
foreach $command (@cmd)
{
system($command);
if ($? == -1)
{
print "failed to execute: $!\n";
}
elsif ($? & 127)
{
printf "child died with signal %d, %s coredump\n",
($? & 127), ($? & 128) ? 'with' : 'without';
}
elsif ($?&0xF0)
{
printf "child exited with value %d\n", $? >> 8;
}
}
# We now have the shapefile and dbf file created, start populating from the
# overlay file:
$i=0;
$first_line = 1;
while (<INOBJ>)
{
chomp($_);
# Skip the first line if it starts with a '*' (comment line).
next if ($first_line && (substr($_,0,1) eq '*') );
$first_line = 0;
$temp = $_;
@bits = split('!', $temp);
# Sanity check --- don't try to convert if the line doesn't
# conform to what we expect. We should have two items in the
# array at this point.
next if (length(@bits) < 1);
$name2 = $bits[0];
$rest = $bits[1];
$name = substr($name2,0,9); # Chop at 9 chars
$name =~ s/\w+\s+$//; # Remove trailing spaces
$lat=substr($rest,0,8);
$symtab=substr($rest,8,1);
$long=substr($rest,9,9);
$sym=substr($rest,18,1);
# TODO: Do something with the comment field? It appears that if we
# add too much here we get strange results when displayed in Xastir.
$comment=substr($rest,19,100);
# $name = $name . ":" . $comment;
$i++; # bump the ID number so every point has a unique one
$lat_deg=substr($lat,0,2);
$lat_min=substr($lat,2,5);
$lat_hem=substr($lat,7,1);
$long_deg=substr($long,0,3);
$long_min=substr($long,3,5);
$long_hem=substr($long,8,1);
$lat=$lat_deg+$lat_min/60;
$lat *= -1 if ($lat_hem eq "S");
$long=$long_deg+$long_min/60;
$long *= -1 if ($long_hem eq "W");
# Construct symbol
if ($symtab ne "/" && $symtab ne "\\")
{
print "overlay symbol, symtab is $symtab\n";
$overlay=$symtab;
$symtab="\\";
print " reset values symtab is $symtab, overlay is $overlay\n";
}
else
{
$overlay=" ";
}
$cmd[0]="shpadd $outfile $long $lat";
$cmd[1]="dbfadd $outfile $i \'X$symtab$sym$overlay\' $name";
print $cmd[1]."\n";
foreach $command (@cmd)
{
system($command);
if ($? == -1)
{
print "failed to execute: $!\n";
}
elsif ($? & 127)
{
printf "child died with signal %d, %s coredump\n",
($? & 127), ($? & 128) ? 'with' : 'without';
}
elsif ($?&0xF0)
{
printf "child exited with value %d\n", $? >> 8;
}
}
}
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