File: permutations.pl

package info (click to toggle)
xastir 2.1.4-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 13,676 kB
  • sloc: ansic: 121,100; perl: 7,529; sh: 5,535; makefile: 383; python: 312; sql: 102
file content (389 lines) | stat: -rwxr-xr-x 11,241 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
#!/usr/bin/perl
use warnings;

#
# Written by Paul Lutt, KE7XT & Curt Mills, WE7U.
# Released to the public domain.
#
#
#
# Finds the different lat/long representations corresponding to the
# input numbers.  A space is required between the degrees portion
# and the rest of the input.  Writes out a log file containing APRS
# objects suitable for importing into Xastir, to graphically plot
# the locations of the objects.  Now that Xastir has a server port
# we could directly inject them into the program via that route as
# well, but we currently don't do that.
#
# Converts between different lat/lon formats.  Will also give UMS
# position if the lat/lon resides somewhere inside the Seattle area
# aeronautical map.
#
# UMS coordinates have been used in the past by King County, WA SAR.
# It can be useful for plotting positions on Green Trails maps and
# perhaps other maps.  The maps must be 15' topo maps and marked in
# tenths of miles along the edge in order to make use of this
# coordinate system.
#
# Web pages which discuss UMS format:
#   http://www.impulse.net/~mlynch/land_nav.html
#   http://www.logicsouth.com/~lcoble/dir9/land_nav.htm
#   http://www.aasar.org/training/academy/navigation.pdf
#


use lib "/usr/local/lib";
use Coordinate;         # WE7U's Coordinate.pm module


# Get the username
$user = getlogin;
chomp $user;
$filename = "/var/tmp/PERMUTATIONS-$user.log";


sub convert {

    # Snag the input
    $_ = $_[0];

    print "\n";

    # If the first item has 2 digits and one character and there are
    # three "words" in the input, we're starting with a UTM value.
    if (/^\d\d[a-zA-Z]\s+\w+\s+\w+\s*$/) {

        # printf("Found a UTM value\n");

        # We'll convert it to the standard format first and then run
        # through the rest of the code.

        $zone = $_;
        $easting = $_;
        $northing = $_;

        $zone =~ s/^(\d\d[a-zA-Z])\s+\w+\s+\w+\s*$/$1/;
        $easting =~ s/^\d\d[a-zA-Z]\s+(\w+)\s+\w+\s*$/$1/;
        $northing =~ s/^\d\d[a-zA-Z]\s+\w+\s+(\w+)\s*$/$1/;

        if ($easting > 999999) {
            printf("Easting value is too high!\n");
            return;
        }

        $position->zone($zone);
        $position->easting($easting);
        $position->northing($northing);

        # Convert to lat/lon values
        $position->utm_to_lat_lon();

        # printf("Calculated Lat, Long position(Lat, Long):  %f   %f\n",
        #    $position->latitude(),
        #    $position->longitude() );

        $latitude = $position->latitude();
        $longitude = $position->longitude();

        $lat_dir = "N";
        $long_dir = "E";
 
        if ($latitude < 0.0) {
            $latitude = abs($latitude);
            $lat_dir = "S"
        }
        if ($longitude < 0.0) {
            $longitude = abs($longitude);
            $long_dir = "W";
        }

 
        # printf("%f%s %f%s\n", $latitude,$lat_dir,$longitude,$long_dir);

       $_ = sprintf("%f%s %f%s",
            $latitude,$lat_dir,$longitude,$long_dir);

    }

    # Look for lat/long value in the input

    # Check for N/S/E/W characters in the input.  Set the
    # appropriate flags if found.
    $lat_dir = "N";
    $long_dir = "E";
    if (/S/ || /s/) { $lat_dir  = "S"; }
    if (/W/ || /w/) { $long_dir = "W"; }
    # Filter out these characters from the input
    tr/nsewNSEW//d;

    # Convert to DD MM SS format
    ($lat_deg, $lat_min, $lat_sec,
    $long_deg, $long_min, $long_sec) = split(' ');

    # Decimal Degrees?
    if ($lat_deg =~ /\./) {

        $long_deg = $lat_min;   # Save long_degrees in proper place

        $temp = $lat_deg;
        $lat_deg = int $temp;
        $lat_min = int ((abs($temp) * 60.0) % 60);

        # Modulus converts to integers, so we bump up by 10 and then
        # back down.
        $lat_sec = (abs($temp) * 36000.0) % 600;
        $lat_sec = $lat_sec / 10;

        $temp = $long_deg;

        $long_deg = int $temp;
        $long_min = int ((abs($temp) * 60.0) % 60);
        $long_sec = (abs($temp) * 36000.0) % 600;
        $long_sec = $long_sec / 10;
    }
    # Decimal Minutes?
    elsif ($lat_min =~ /\./) {

        $long_min = $long_deg;  # Save long_minutes in proper place
        $long_deg = $lat_sec;   # Save long_degrees in proper place

        $temp = $lat_min;
        $lat_min = int abs($temp);
        $lat_sec = (abs($temp) * 60.0) % 60;
        $lat_sec = $lat_sec / 10;

        $temp = $long_min;
        $long_min = int abs($temp);
        $long_sec = (abs($temp) * 600.0) % 600;
        $long_sec = $long_sec / 10;
    }
    # Decimal Seconds
    else {  # Already in DD MM SS format, don't convert
    }

    # Print out the three lat/long formats
    printf("                Decimal Degrees: %8.5f%s   %8.5f%s\n",
        $lat_deg + ($lat_min/60.0) + ($lat_sec/3600.0), $lat_dir,
        $long_deg + ($long_min/60.0) + ($long_sec/3600.0), $long_dir );
 
    printf("        Degrees/Decimal Minutes: %02d %06.3f%s  %02d %06.3f%s\n",
        $lat_deg, $lat_min + ($lat_sec/60.0), $lat_dir,
        $long_deg, $long_min + ($long_sec/60.0), $long_dir );

    printf("   Degrees/Minutes/Dec. Seconds: %02d %02d %4.1f%s %02d %02d %4.1f%s\n",
        $lat_deg, $lat_min, $lat_sec, $lat_dir,
        $long_deg, $long_min, $long_sec, $long_dir);

    # Dump out the coordinate in APRS Item format:
    printf(FH "TEST>APRS:)%s!%02d%05.2f%s/%03d%05.2f%s/\n",
        $_[1],
        $lat_deg,
        $lat_min + ($lat_sec/60.0),
        $lat_dir,
        $long_deg,
        $long_min + ($long_sec/60.0),
        $long_dir );

    # Fill in the coordinate object with the current lat/lon.
    # Assuming WGS84 datum
    if ($lat_dir =~ /S/) {
        $position->latitude( -( $lat_deg + ($lat_min/60.0) + ($lat_sec/3600.0) ) );
    }
    else {
        $position->latitude( $lat_deg + ($lat_min/60.0) + ($lat_sec/3600.0) );
    }
 
    if ($long_dir =~ /W/) {
        $position->longitude( -( $long_deg + ($long_min/60.0) + ($long_sec/3600.0) ) );
    }
    else {
        $position->longitude( $long_deg + ($long_min/60.0) + ($long_sec/3600.0) );
    }

    #printf("%f %f\n",$position->latitude,$position->longitude);

    $position->lat_lon_to_utm();
    printf("  Universal Transverse Mercator: %s  %07.0f  %07.0f\n",
        $position->zone(),
        $position->easting(),
        $position->northing() );

    # Check whether the coordinates are within the SEA aeronautical
    # map area
    $lat_err = 0;
    if ($lat_dir =~ /S/ ||
        $lat_deg < 44 || $lat_deg > 49 ||
	    ($lat_deg == 44 && ($lat_min < 30 || ($lat_min == 30 && $lat_sec == 0))) ||
	    ($lat_deg == 49 && ($lat_min > 0 || $lat_sec > 0))) {
	print " lat. out of range ";
	$lat_err = 1;
    }

    $long_err = 0;
    if ($long_dir =~ /E/ ||
        $long_deg < 117 || $long_deg > 125 ||
	    ($long_deg == 117 && ($long_min == 0 && $long_sec == 0)) ||
	    ($long_deg == 125 && ($long_min > 0 || $long_sec > 0))) {
	print " long. out of range";
        $long_err = 1;
    }

    return if ( $lat_err || $long_err);


    # Compute UMS coordinates
    $y_sec = 3600 * ($lat_deg - 44) + 60 * $lat_min + $lat_sec;
    $y_sec = 18000 - $y_sec;

    $x_sec = 3600 * ($long_deg - 117) + 60 * $long_min + $long_sec;
    $x_sec = 28800 - $x_sec;

    $quad = 32 * int($y_sec / 900) + int($x_sec / 900) + 1;

#    print "\tx_sec= $x_sec, y_sec= $y_sec, quad= $quad\n";

    $y_subquad_offset = int($y_sec / 450);
    $x_subquad_offset = int($x_sec / 450);

    if (&even($x_subquad_offset) && &even($y_subquad_offset)) {
        print "        UMS (Green Trails Maps): SEA ${quad} A ";
	printf "%02d", &s2m_x($x_sec - (450 * $x_subquad_offset));
	printf "%02d\n", &s2m_y($y_sec - (450 * $y_subquad_offset));
    } elsif (&odd($x_subquad_offset) && &even($y_subquad_offset)) {
        print "        UMS (Green Trails Maps): SEA ${quad} B ";
	printf "%02d", &s2m_x(450 * ($x_subquad_offset + 1) - $x_sec);
	printf "%02d\n", &s2m_y($y_sec - (450 * $y_subquad_offset));
    } elsif (&even($x_subquad_offset) && &odd($y_subquad_offset)) {
        print "        UMS (Green Trails Maps): SEA ${quad} C ";
	printf "%02d", &s2m_x($x_sec - (450 * $x_subquad_offset));
	printf "%02d\n", &s2m_y(450 * ($y_subquad_offset + 1) - $y_sec);
    } else {
        print "        UMS (Green Trails Maps): SEA ${quad} D ";
	printf "%02d", &s2m_x(450 * ($x_subquad_offset + 1) - $x_sec);
	printf "%02d\n", &s2m_y(450 * ($y_subquad_offset + 1) - $y_sec);
    }
}



sub even {
    return (($_[0] & 1) == 0);
}



sub odd {
    return (($_[0] & 1) == 1);
}



sub s2m_y {
    return (int((0.1917966 * $_[0]) + 0.5));
}



sub s2m_x {
    return (int((cos(($lat_deg + ($lat_min / 60.0) + ($lat_sec / 3600.0)) / 57.29578) * (0.1917966 * $_[0])) + 0.5));
}



##############
# Main Program
##############

open (FH, ">$filename") || die "Couldn't open file for writing:$!\n";


# Create new Coordinate object
$position = Coordinate->new();


$position->datum("WGS 84");    # Datum


print "\n";
print "Examples:  48  07228N   122 07228W\n";
print "           48  08N      122 07W\n";
print "          10U  0565264  5330343\n";

print "\nAPRS Items will be written to: $filename\n";
print "Enter a Lat/Long value or UTM value:\n";


# Snag the input
$input = <>;

# Get rid of whitespace at the beginning
$input =~ s/\s*//;

# UTM value?
if ($input =~ /^\d\d[a-zA-Z]\s+\w+\s+\w+\s*$/) {

    $input2 = $input;
    &convert($input2, "UTM");

print "\n";

    # Swap Easting/Northing values and convert again.  Leave the
    # zone in it's original spot.
    $input2 = $input;
    $input2 =~ s/^(\d\d[a-zA-Z])\s+(\w+)\s+(\w+)\s*$/$1 $3 $2\n/;

print $input2;
    &convert($input2, "UTM2");
}
# else must be lat/lon value
else {

    # Need to break up the input into several possible formats,
    # possibly including swapping lat/long pieces and plotting N/S
    # and E/W variants.

    # I'm going to assume that the user knows his/her approximate
    # lat/lon, so they can input it in roughly the proper format to
    # begin with.  All that's left then is to determine which of the
    # three lat/lon formats it's in.

    # 48  07228N   122 07228W

    $input =~ s/^(\w+)\s+(\d)(\w)\s+(\w+)\s+(\d)(\w)\s*$/$1 0$2$3 $4 0$5$6\n/;

    # DD.DDD
    $input2 = $input;
    $input2 =~ s/^(\w+)\s+(\w+)\s+(\w+)\s+(\w+)\s*$/$1.$2 $3.$4\n/;
print $input2;
    &convert($input2, "DD.DDD");

print "\n";

    # DD MM.MMM
    $input2 = $input;
    $input2 =~ s/^(\w+)\s+(\d\d)(\w+)\s+(\w+)\s+(\d\d)(\w+)\s*$/$1 $2.$3 $4 $5.$6\n/;
    $input2 =~ s/(\.N)/.00N/;
    $input2 =~ s/(\.S)/.00S/;
    $input2 =~ s/(\.E)/.00E/;
    $input2 =~ s/(\.W)/.00W/;
print $input2;
    &convert($input2, "DD MM.MM");

print "\n";

    # DD MM SS.S
    $input2 = $input;
    $input2 =~ s/^(\w+)\s+(\d\d)(\w)\s+(\w+)\s+(\d\d)(\w)\s*$/$1 $2 00.$3 $4 $5 00.$6\n/;
    $input2 =~ s/^(\w+)\s+(\d\d)(\d)(\w)\s+(\w+)\s+(\d\d)(\d)(\w)\s*$/$1 $2 $3.$4 $5 $6 $7.$8\n/;
    $input2 =~ s/^(\w+)\s+(\d\d)(\d\d)(\w+)\s+(\w+)\s+(\d\d)(\d\d)(\w+)\s*$/$1 $2 $3.$4 $5 $6 $7.$8\n/;
    $input2 =~ s/(\.N)/.0N/;
    $input2 =~ s/(\.S)/.0S/;
    $input2 =~ s/(\.E)/.0E/;
    $input2 =~ s/(\.W)/.0W/;
    $input2 =~ s/\s(\d)(\.\d)/ 0$1$2/g;
print $input2;
    &convert($input2, "DD MM SS");

}

close(FH);