| 1 |
dpavlin |
17 |
#!/usr/bin/perl -w |
| 2 |
|
|
|
| 3 |
|
|
# pdf2tiles.pl |
| 4 |
|
|
# |
| 5 |
|
|
# 02/24/08 01:22:36 CET Dobrica Pavlinusic <dpavlin@rot13.org> |
| 6 |
|
|
|
| 7 |
|
|
use strict; |
| 8 |
|
|
|
| 9 |
|
|
use Imager; |
| 10 |
|
|
use File::Path; |
| 11 |
|
|
use Data::Dump qw/dump/; |
| 12 |
|
|
|
| 13 |
|
|
my $pdf = shift @ARGV || die "usage: $0 filename.pdf"; |
| 14 |
|
|
|
| 15 |
dpavlin |
20 |
my $from_page = 1; |
| 16 |
|
|
my $to_page = 4; |
| 17 |
dpavlin |
17 |
|
| 18 |
dpavlin |
18 |
my $tiles_path = 'tiles/basic'; |
| 19 |
|
|
|
| 20 |
dpavlin |
20 |
foreach my $path ( $tiles_path, 'ppm' ) { |
| 21 |
|
|
rmtree $path if -d $path; |
| 22 |
|
|
mkpath $path || die "can't create $path: $!"; |
| 23 |
|
|
} |
| 24 |
|
|
|
| 25 |
dpavlin |
17 |
foreach my $zoom ( 1 .. 12 ) { |
| 26 |
|
|
|
| 27 |
dpavlin |
18 |
my $dpi = $zoom * 15; |
| 28 |
dpavlin |
17 |
|
| 29 |
dpavlin |
20 |
my $ppm = sprintf("ppm/%03d", $dpi); |
| 30 |
dpavlin |
17 |
|
| 31 |
dpavlin |
20 |
print "rendering pdf $pdf pages $from_page-$to_page in $dpi dpi\n"; |
| 32 |
dpavlin |
17 |
|
| 33 |
dpavlin |
20 |
my $cmd = "pdftoppm -f $from_page -l $to_page -r $dpi -aa yes -aaVector yes $pdf $ppm"; |
| 34 |
|
|
system($cmd) == 0 or die "can't start $cmd: $?"; |
| 35 |
dpavlin |
17 |
|
| 36 |
dpavlin |
20 |
my @page_imgs; |
| 37 |
dpavlin |
17 |
|
| 38 |
dpavlin |
20 |
# size of all pages |
| 39 |
|
|
my ( $x_size, $y_size ) = (0,0); |
| 40 |
dpavlin |
17 |
|
| 41 |
dpavlin |
20 |
foreach my $page ( $from_page .. $to_page ) { |
| 42 |
dpavlin |
17 |
|
| 43 |
dpavlin |
20 |
my $tmp = sprintf("ppm/%03d-%06d.ppm", $dpi, $page); |
| 44 |
|
|
die "can't find page $tmp" unless -f $tmp; |
| 45 |
dpavlin |
17 |
|
| 46 |
dpavlin |
20 |
my $img = Imager->new; |
| 47 |
|
|
$img->read(file=>$tmp) or die "Can't load $tmp: ", $img->errstr; |
| 48 |
|
|
|
| 49 |
|
|
$x_size += $img->getwidth(); |
| 50 |
|
|
my $h = $img->getheight(); |
| 51 |
|
|
$y_size = $h if $h > $y_size; |
| 52 |
|
|
|
| 53 |
|
|
push @page_imgs, $img; |
| 54 |
|
|
} |
| 55 |
|
|
|
| 56 |
|
|
print "loaded $from_page-$to_page of $x_size*$y_size pixels\n"; |
| 57 |
|
|
|
| 58 |
|
|
my $back_color = Imager::Color->new(255, 127, 127); |
| 59 |
|
|
|
| 60 |
|
|
my $img = Imager->new( xsize => $x_size, ysize => $y_size ); |
| 61 |
|
|
$img->box(filled=>1, color=>$back_color); |
| 62 |
|
|
|
| 63 |
|
|
my $x_pos = 0; |
| 64 |
|
|
|
| 65 |
|
|
foreach my $page_img ( @page_imgs ) { |
| 66 |
|
|
$img->paste( left => $x_pos, top => 0, img => $page_img ); |
| 67 |
|
|
$x_pos += $page_img->getwidth(); |
| 68 |
|
|
} |
| 69 |
|
|
|
| 70 |
|
|
undef @page_imgs; |
| 71 |
|
|
|
| 72 |
dpavlin |
17 |
my $tiles_x = int( $x_size / 256 ); |
| 73 |
|
|
my $tiles_y = int( $y_size / 256 ); |
| 74 |
|
|
|
| 75 |
dpavlin |
18 |
print "creating in $tiles_x*$tiles_y tiles\n"; |
| 76 |
dpavlin |
17 |
|
| 77 |
|
|
for my $y ( 0 .. $tiles_y ) { |
| 78 |
|
|
for my $x ( 0 .. $tiles_x ) { |
| 79 |
|
|
|
| 80 |
|
|
my $size = { |
| 81 |
|
|
left => $x * 256, |
| 82 |
|
|
bottom => $y_size - $y * 256, |
| 83 |
|
|
width => $x == $tiles_x ? $x_size % 256 : 256, |
| 84 |
|
|
height => $y == $tiles_y ? $y_size % 256 : 256, |
| 85 |
|
|
}; |
| 86 |
|
|
|
| 87 |
|
|
my $tile = $img->crop( %$size ) or die "can't crop $x*$y ",dump( $size ); |
| 88 |
|
|
|
| 89 |
|
|
if ( ( $x == $tiles_x ) || ( $y == $tiles_y ) ) { |
| 90 |
|
|
warn "## expand tile to full size\n"; |
| 91 |
|
|
my $t2 = Imager->new(xsize => 256, ysize => 256); |
| 92 |
|
|
$t2->paste( |
| 93 |
|
|
top => 256 - $size->{height}, |
| 94 |
|
|
left => 0, |
| 95 |
|
|
src => $tile, |
| 96 |
|
|
); |
| 97 |
|
|
$tile = $t2; |
| 98 |
|
|
} |
| 99 |
|
|
|
| 100 |
|
|
# emulate TileCache disk layout |
| 101 |
dpavlin |
18 |
my $path = sprintf("%s/%02d/%03d/%03d/%03d/%03d/%03d/%03d.png", |
| 102 |
|
|
$tiles_path, |
| 103 |
dpavlin |
17 |
$zoom - 1, # starts with 0 |
| 104 |
|
|
int( $x / 1000000 ), |
| 105 |
|
|
int( $x / 1000 ) % 1000, |
| 106 |
|
|
$x % 1000, |
| 107 |
|
|
int( $y / 1000000 ), |
| 108 |
|
|
int( $y / 1000 ) % 1000, |
| 109 |
|
|
$y % 1000 |
| 110 |
|
|
); |
| 111 |
|
|
|
| 112 |
|
|
my $dir = $path; |
| 113 |
|
|
$dir =~ s,/[^/]+$,,; |
| 114 |
|
|
mkpath $dir unless -d $dir; |
| 115 |
|
|
|
| 116 |
|
|
$tile->write( file => $path ) or die $tile->errstr; |
| 117 |
|
|
|
| 118 |
|
|
undef $tile; |
| 119 |
|
|
|
| 120 |
|
|
print "# $x*$y -> $path\n"; |
| 121 |
|
|
|
| 122 |
|
|
} |
| 123 |
|
|
} |
| 124 |
|
|
} |
| 125 |
|
|
|
| 126 |
|
|
|
Parent Directory
| 
Revision Log