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dpavlin |
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#!/usr/bin/perl -w |
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# stich.pl |
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# |
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# 10/15/07 22:02:18 CEST Dobrica Pavlinusic <dpavlin@rot13.org> |
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use strict; |
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use File::Find; |
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use Data::Dump qw/dump/; |
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use Imager; |
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dpavlin |
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use Getopt::Long; |
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dpavlin |
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dpavlin |
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# Mireo 1, Google 0 |
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my $flip_vertical = 0; |
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dpavlin |
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GetOptions( |
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'flip-vertical' => \$flip_vertical, |
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); |
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my $path = shift @ARGV || die "usage: $0 path_to_dump_dir\n"; |
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dpavlin |
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my ( $range, $usage ); |
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my @files; |
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my $file_pos; |
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find( sub { |
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return unless -f $_; |
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if ( $_ =~ m/(\d+)-(\d+)/ ) { |
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push @files, $_; |
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my ( $x, $y ) = ( $1, $2 ); |
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$range->{min}->{x} = $x if not defined $range->{min}->{x} or $x < $range->{min}->{x}; |
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$range->{max}->{x} = $x if not defined $range->{max}->{x} or $x > $range->{max}->{x}; |
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$range->{min}->{y} = $y if not defined $range->{min}->{y} or $y < $range->{min}->{y}; |
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$range->{max}->{y} = $y if not defined $range->{max}->{y} or $y > $range->{max}->{y}; |
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$usage->{x}->{$x}++; |
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$usage->{y}->{$y}++; |
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$file_pos->{$_} = { x => $x, y => $y }; |
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warn "## $_\n"; |
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} else { |
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warn "SKIPPED: $_\n"; |
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} |
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}, $path ); |
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print "range = ",dump( $range ), "\n"; |
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print "usage = ",dump( $usage ). "\n"; |
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my $step_size; |
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foreach my $axis ( 'x', 'y' ) { |
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my $last = $range->{min}->{$axis}; |
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foreach my $v ( sort keys %{$usage->{$axis}} ) { |
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next if $v == $last; |
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$step_size->{$axis}->{ $v - $last }++; |
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$last = $v; |
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} |
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undef $last; |
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} |
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print "step_size = ",dump( $step_size ),"\n"; |
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my $step = { |
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x => ( sort { $step_size->{x}->{$b} <=> $step_size->{x}->{$a} } keys %{ $step_size->{x} } )[0], |
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y => ( sort { $step_size->{y}->{$b} <=> $step_size->{y}->{$a} } keys %{ $step_size->{y} } )[0], |
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}; |
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print "selected step = ",dump( $step ),"\n"; |
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my $img = Imager->new(); |
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$img->read( file => $path . '/' . $files[0] ) or die $img->errstr(); |
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my $tile_size = { |
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x => $img->getwidth, |
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y => $img->getheight, |
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}; |
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print "tile_size = ",dump( $tile_size ),"\n"; |
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my $x_tiles = ( $range->{max}->{x} - $range->{min}->{x} ) / $step->{x}; |
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my $y_tiles = ( $range->{max}->{y} - $range->{min}->{y} ) / $step->{y}; |
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my $x_size = $x_tiles * $tile_size->{x}; |
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my $y_size = $y_tiles * $tile_size->{y}; |
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print "final map size: $x_size x $y_size from $x_tiles x $y_tiles tiles\n"; |
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dpavlin |
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my $map = Imager->new( xsize => $x_size, ysize => $y_size ) or $img->errstr(); |
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dpavlin |
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foreach my $tile_file ( @files ) { |
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$img->read( file => "$path/$tile_file" ) or die $img->errstr(); |
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# this is specific to globe position, I guess ... this is europe |
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my $x = ( $file_pos->{$tile_file}->{x} - $range->{min}->{x} ) / $step->{x}; |
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dpavlin |
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my $y; |
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if ( $flip_vertical ) { |
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$y = ( $range->{max}->{y} - $file_pos->{$tile_file}->{y} ) / $step->{y}; |
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} else { |
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$y = ( $file_pos->{$tile_file}->{y} - $range->{min}->{y} ) / $step->{y}; |
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} |
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dpavlin |
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printf("%3dx%-3d %s\n", $x, $y, $tile_file); |
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$map->paste( |
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src => $img, |
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left => $x * $tile_size->{x}, |
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top => $y * $tile_size->{y}, |
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); |
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} |
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dpavlin |
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$path =~ s/\W+/_/g; |
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$path =~ s/^_+//; |
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$path =~ s/_+$//; |
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$map->write( file => "$path.png" ) or die $img->errstr(); |
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