You're question is a little vague, but I think I understand what your asking.
I'm assuming these are latitude/longitude pairs. If your data file is called 'test.vrml' and has the following contents: 

coord Coordinate { 12 23 45, 14 16 65 }
coord Coordinate { 13 34 57, 14 17 55 }
coord Coordinate { 14 33 34, 14 15 40 }

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Then you could use the following to pull out the coordinates: 

#! /usr/bin/perl

use strict;
use warnings;

my $filename = './test.vrml';

open my $FH, '<', $filename or die "Can't open $filename for reading: 
+$!";

my @data = <$FH>; # Read the contents of the file into an array
close $FH;

my @coordinates;

foreach my $line ( @data ) {
    if ( my ($lat, $lon) = ( $line =~ m/\{\s*(.*), (.*)\s*\}/) ) {
        push @coordinates, "$1 $2";
    }
}

print "COORDINATES: $_\n" foreach ( @coordinates );

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This output the following:

COORDINATES: 12 23 45 14 16 65 
COORDINATES: 13 34 57 14 17 55 
COORDINATES: 14 33 34 14 15 40

[download]

Which could then be written to the output file 'test.cpp' like this: 

my $output_filename = './test.cpp';
open $OUTPUT, '>', $output_filename or die "Can't open $output_filenam
+e for writing: $!";

foreach ( @data ) {
    print { $OUTPUT } "$_\n";  # Print to file
}
close $OUTPUT;

[download]
--njcodewarrior

In reply to Re: accessing specific data in a file by njcodewarrior
in thread accessing specific data in a file by phoenixQueen

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