branches/gpst.postgis/GPST.pm

   1 package GPST;
   2
   3 #=======================================================================
   4 # $Id$
   5 #
   6 # Character set: UTF-8
   7 # ©opyleft 2002– Øyvind A. Holm <sunny@sunbase.org>
   8 # License: GNU General Public License, see end of file for legal stuff.
   9 #=======================================================================
  10
  11 use strict;
  12 use warnings;
  13
  14 use GPSTdebug;
  15 use GPSTgeo;
  16
  17 BEGIN {
  18     use Exporter ();
  19     our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
  20
  21     my $rcs_id = '$Id$';
  22     push(@main::version_array, $rcs_id);
  23     $VERSION = ($rcs_id =~ / (\d+) /, $1);
  24
  25     @ISA = qw(Exporter);
  26     @EXPORT = qw(&trackpoint &postgresql_copy_safe);
  27     %EXPORT_TAGS = ();
  28 }
  29 our @EXPORT_OK;
  30
  31 our $Spc = " ";
  32
  33 sub trackpoint {
  34     # Receive a hash and return a trackpoint as a string {{{
  35     my %Dat = @_;
  36
  37     defined($Dat{'what'}) || return(undef);
  38     defined($Dat{'format'}) || return(undef);
  39     defined($Dat{'error'}) || return(undef);
  40
  41     defined($Dat{'year'}) || ($Dat{'year'} = 0);
  42     defined($Dat{'month'}) || ($Dat{'month'} = 0);
  43     defined($Dat{'day'}) || ($Dat{'day'} = 0);
  44     defined($Dat{'hour'}) || ($Dat{'hour'} = "");
  45     defined($Dat{'min'}) || ($Dat{'min'} = "");
  46     defined($Dat{'sec'}) || ($Dat{'sec'} = "");
  47     my $print_time = (
  48         !$Dat{'year'} ||
  49         !$Dat{'month'} ||
  50         !$Dat{'day'} ||
  51         !length($Dat{'hour'}) ||
  52         !length($Dat{'min'}) ||
  53         !length($Dat{'sec'})
  54     ) ? 0 : 1;
  55
  56     if (
  57         ("$Dat{'year'}$Dat{'month'}$Dat{'day'}$Dat{'hour'}$Dat{'min'}" =~
  58         /[^\d]/) || ($Dat{'sec'} =~ /[^\d\.]/)
  59     ) {
  60         ($print_time = 0);
  61     }
  62     "$Dat{'lat'}$Dat{'lon'}" =~ /[^\d\.\-\+]/ && return(undef);
  63
  64     defined($Dat{'lat'}) || ($Dat{'lat'} = "");
  65     defined($Dat{'lon'}) || ($Dat{'lon'} = "");
  66     defined($Dat{'ele'}) || ($Dat{'ele'} = "");
  67     defined($Dat{'desc'}) || ($Dat{'desc'} = "");
  68
  69     my $Retval = "";
  70
  71     if ($Dat{'what'} eq "tp") {
  72         my $err_str = length($Dat{'error'}) ? $Dat{'error'} : "";
  73         if ($Dat{'format'} eq "gpsml") {
  74             # {{{
  75             my $Elem = length($err_str) ? "etp" : "tp";
  76             $Retval .= join("",
  77                     $print_time
  78                         ? sprintf("<time>%04u-%02u-%02uT" .
  79                                   "%02u:%02u:%02gZ</time> ",
  80                                    $Dat{'year'}, $Dat{'month'}, $Dat{'day'},
  81                                    $Dat{'hour'}, $Dat{'min'}, $Dat{'sec'}*1.0
  82                           )
  83                         : "",
  84                     (length($Dat{'lat'}))
  85                         ? "<lat>" . $Dat{'lat'}*1.0 . "</lat> "
  86                         : "",
  87                     (length($Dat{'lon'}))
  88                         ? "<lon>" . $Dat{'lon'}*1.0 . "</lon> "
  89                         : "",
  90                     (length($Dat{'ele'}))
  91                         ? "<ele>" . $Dat{'ele'}*1.0 . "</ele> "
  92                         : "",
  93                     (length($Dat{'desc'}))
  94                         ? sprintf("<desc>%s</desc> ",
  95                                   $Dat{'desc'})
  96                         : ""
  97             );
  98             length($Retval) &&
  99                 ($Retval = sprintf("<%s%s> %s</%s>\n",
 100                                    $Elem,
 101                                    length($err_str) ? " err=\"$err_str\"" : "",
 102                                    $Retval,
 103                                    $Elem)
 104             );
 105             # }}}
 106         } elsif($Dat{'format'} eq "gpx") {
 107             # {{{
 108             my $lat_str = length($Dat{'lat'}) ? " lat=\"$Dat{'lat'}\"" : "";
 109             my $lon_str = length($Dat{'lon'}) ? " lon=\"$Dat{'lon'}\"" : "";
 110             my ($estr_begin, $estr_ext, $estr_end) =
 111                (         "",        "",        "");
 112             if (length($err_str)) {
 113                 $estr_begin = "<!-- ";
 114                 $estr_ext = "<extensions>$Spc<error>$err_str</error>$Spc</extensions>$Spc";
 115                 $estr_end = " -->";
 116             }
 117             if (length("$lat_str$lon_str$Dat{'ele'}")) {
 118                 $Retval .=
 119                 join("",
 120                     "$Spc$Spc$Spc$Spc$Spc$Spc",
 121                     $estr_begin,
 122                     "<trkpt$lat_str$lon_str>",
 123                     "$Spc",
 124                     length($Dat{'ele'})
 125                         ? "<ele>$Dat{'ele'}</ele>$Spc"
 126                         : "",
 127                     $print_time
 128                         ? "<time>" .
 129                           "$Dat{'year'}-$Dat{'month'}-$Dat{'day'}T" .
 130                           "$Dat{'hour'}:$Dat{'min'}:$Dat{'sec'}Z" .
 131                           "</time>$Spc"
 132                         : "",
 133                         $estr_ext,
 134                     "</trkpt>$estr_end\n"
 135                 );
 136             }
 137             # }}}
 138         } elsif($Dat{'format'} eq "clean") {
 139             $Retval .= "$Dat{'lon'}\t$Dat{'lat'}\t$Dat{'ele'}\n";
 140         } elsif($Dat{'format'} eq "xgraph") {
 141             if (length($Dat{'lat'}) && length($Dat{'lon'})) {
 142                 $Retval .= "$Dat{'lon'} $Dat{'lat'}\n";
 143             }
 144         } elsif ($Dat{'format'} eq "pgtab") {
 145             $Retval .= join("\t",
 146                 $Dat{'year'}
 147                     ? "$Dat{'year'}-$Dat{'month'}-$Dat{'day'}T" .
 148                       "$Dat{'hour'}:$Dat{'min'}:$Dat{'sec'}Z"
 149                     : '\N', # date
 150                 (length($Dat{'lat'}) && length($Dat{'lon'}))
 151                     ? "($Dat{'lat'},$Dat{'lon'})"
 152                     : '\N', # coor
 153                 length($Dat{'ele'}) ? $Dat{'ele'} : '\N', # ele
 154                 '\N', # sted
 155                 '\N', # dist
 156                 '\N', # description
 157                 '\N' # avst
 158             ) . "\n";
 159         } elsif ($Dat{'format'} eq "gpstrans") {
 160             # {{{
 161             my ($gpt_lat, $gpt_lon) =
 162                (ddd_to_dms($Dat{'lat'}), ddd_to_dms($Dat{'lon'}));
 163             if ($print_time) {
 164                 $Retval .= "T\t$Dat{'month'}/$Dat{'day'}/$Dat{'year'} " .
 165                          "$Dat{'hour'}:$Dat{'min'}:$Dat{'sec'}\t" .
 166                          "$gpt_lat\t$gpt_lon\n";
 167             } else {
 168                 $Retval .= "T\t00/00/00 00:00:00\t$gpt_lat\t$gpt_lon\n";
 169             }
 170             # }}}
 171         } else {
 172             $Retval = undef;
 173         }
 174     } else {
 175         $Retval = undef;
 176     }
 177     return $Retval;
 178     # }}}
 179 }
 180
 181 sub postgresql_copy_safe {
 182     # {{{
 183     my $Str = shift;
 184     $Str =~ s/\\/\\\\/gs;
 185     $Str =~ s/\n/\\n/gs;
 186     $Str =~ s/\r/\\r/gs;
 187     $Str =~ s/\t/\\t/gs;
 188     return($Str);
 189     # }}}
 190 }
 191
 192 1;