diff options
Diffstat (limited to 'navit/script/mapExtract.class.php')
| -rw-r--r-- | navit/script/mapExtract.class.php | 160 |
1 files changed, 80 insertions, 80 deletions
diff --git a/navit/script/mapExtract.class.php b/navit/script/mapExtract.class.php index f5c4bbbc3..da6a5a5d4 100644 --- a/navit/script/mapExtract.class.php +++ b/navit/script/mapExtract.class.php @@ -1,76 +1,76 @@ <?php class mapExtract { - + var $input_fd; var $output_fd; var $fetchBbox; - + var $formats; var $worldBbox; - + function mapExtract() { $formats = array(); - + $formats['ziphpack'] = "lssssslLLSS"; - $formats['zipheader'] = "l" . "ziplocsig"; # Signature (is always the same) - $formats['zipheader'] .= "/s" . "zipver"; # zip version needed - $formats['zipheader'] .= "/s" . "zipgenfld";# type of os that generated the file - $formats['zipheader'] .= "/s" . "zipmthd"; # - $formats['zipheader'] .= "/s" . "ziptime"; # time - $formats['zipheader'] .= "/s" . "zipdate"; # date - $formats['zipheader'] .= "/l" . "zipcrc"; # crc checksum - $formats['zipheader'] .= "/L" . "zipsize"; # data size - $formats['zipheader'] .= "/L" . "zipuncmp"; # uncompressed size - $formats['zipheader'] .= "/S" . "zipfnln"; # length of filename - $formats['zipheader'] .= "/S" . "zipxtraln";# length of extra data (always 0) - + $formats['zipheader'] = "lziplocsig"; # Signature (is always the same) + $formats['zipheader'] .= "/szipver"; # zip version needed + $formats['zipheader'] .= "/szipgenfld";# type of os that generated the file + $formats['zipheader'] .= "/szipmthd"; # + $formats['zipheader'] .= "/sziptime"; # time + $formats['zipheader'] .= "/szipdate"; # date + $formats['zipheader'] .= "/lzipcrc"; # crc checksum + $formats['zipheader'] .= "/Lzipsize"; # data size + $formats['zipheader'] .= "/Lzipuncmp"; # uncompressed size + $formats['zipheader'] .= "/Szipfnln"; # length of filename + $formats['zipheader'] .= "/Szipxtraln";# length of extra data (always 0) + $formats['zipcdpack'] = "iccccssssiIISSSSSII"; $formats['zipcd'] = "". - "i" . "zipcensig/". - "c" . "zipcver/". - "c" . "zipcos/". - "c" . "zipcvxt/". - "c" . "zipcexos/". - "s" . "zipcflg/". - "s" . "zipcmthd/". - "s" . "ziptim/". - "s" . "zipdat/". - "i" . "zipccrc/". - "I" . "zipcsiz/". - "I" . "zipcunc/". - "S" . "zipcfnl/". - "S" . "zipcxtl/". - "S" . "zipccml/". - "S" . "zipdsk/". - "S" . "zipint/". - "I" . "zipext/". - "I" . "zipofst"; - + "izipcensig/". + "czipcver/". + "czipcos/". + "czipcvxt/". + "czipcexos/". + "szipcflg/". + "szipcmthd/". + "sziptim/". + "szipdat/". + "izipccrc/". + "Izipcsiz/". + "Izipcunc/". + "Szipcfnl/". + "Szipcxtl/". + "Szipccml/". + "Szipdsk/". + "Szipint/". + "Izipext/". + "Izipofst"; + $formats['zipeocpack'] = "iSSSSIIs"; $formats['zipeoc'] = "". - "i" . "zipesig/". - "S" . "zipedsk/". - "S" . "zipecen/". - "S" . "zipenum/". - "S" . "zipecenn/". - "I" . "zipecsz/". - "I" . "zipeofst/". - "s" . "zipecoml/". - + "izipesig/". + "Szipedsk/". + "Szipecen/". + "Szipenum/". + "Szipecenn/". + "Izipecsz/". + "Izipeofst/". + "szipecoml/"; + $world_bbox = array(); $world_bbox['l']['x'] = -20000000; $world_bbox['l']['y'] = -20000000; $world_bbox['h']['x'] = 20000000; $world_bbox['h']['y'] = 20000000; - + $this->formats = $formats; $this->worldBbox = $world_bbox; } - - + + function process() { - + if (!is_array($this->fetchBbox)) { return "Fetch box not set"; } @@ -85,10 +85,10 @@ class mapExtract { $offset = 0; $zipcd_data = ''; $report = array(); - + /** * Read through zipheaders - * + * */ for(;;) { $buffer = fread($this->input_fd, 30); @@ -98,20 +98,20 @@ class mapExtract { if ($tileinfo['ziplocsig'] != 0x4034b50) break; - + if ($tileinfo['zipfnln'] <= 0) break; - + $filename = fread($this->input_fd, $tileinfo['zipfnln']); $done=false; - + $r = $this->worldBbox; - - $len=strlen($filename); + + $len=strlen($filename); for ($i=0 ; $i < $len ; $i++) { $c['x'] = floor( ($r['l']['x'] + $r['h']['x'])/2 ); $c['y'] = floor( ($r['l']['y'] + $r['h']['y'])/2 ); - + switch($filename[$i]) { case 'a': $r['l']['x'] = $c['x']; @@ -135,27 +135,27 @@ class mapExtract { if ($done) break; } - # print "zipsize=" . $tileinfo['zipsize']; + # print "zipsize=" . $tileinfo['zipsize']; $tilecontent = fread($this->input_fd, $tileinfo['zipsize']); - - # print "tile $filename"; + + # print "tile $filename"; /* Area inside box, save it! */ if ($this->contains_bbox($r)) { $report['added_areas']++; - + $zipheader = $buffer; # print " in\n"; - + /* Area outside of box, set zipcontent=0 */ } else { # print " out\n"; $report['excluded_areas']++; - + $tileinfo['zipmthd'] = $tileinfo['zipcrc'] = $tileinfo ['zipsize'] = $tileinfo['zipuncmp'] = 0; $zipheader = $tileinfo; $tilecontent = ''; - $zipheader = pack($this->formats['ziphpack'], + $zipheader = pack($this->formats['ziphpack'], $tileinfo['ziplocsig'], $tileinfo['zipver'], $tileinfo['zipgenfld'], @@ -169,9 +169,9 @@ class mapExtract { $tileinfo['zipxtraln'] ); } - + $put = $zipheader.$filename.$tilecontent; - + /* Zip directory */ $zipcd_data .= pack($this->formats['zipcdpack'], 0x02014b50, @@ -194,17 +194,17 @@ class mapExtract { 0x00, $offset ) . $filename; - + fwrite($this->output_fd, $put); $offset += strlen($put); $filecount += 1; } - + fwrite($this->output_fd, $zipcd_data); $ecsz = strlen($zipcd_data); - + /* Zip central directory */ - $zip_eoc = pack($this->formats['zipeocpack'], + $zip_eoc = pack($this->formats['zipeocpack'], 0x06054b50, #zipesig; 0, #zipedsk; 0, #zipecen; @@ -215,11 +215,11 @@ class mapExtract { 0 #zipecoml; ); fwrite($this->output_fd, $zip_eoc); - - + + return null; } - + function setBbox($sx,$sy,$ex,$ey) { if ($ex<$sx) return false; @@ -235,7 +235,7 @@ class mapExtract { function setInputFD($fd) { $this->input_fd=$fd; } - + function setOutput($file) { $this->output_fd=fopen($file,'w'); } @@ -243,8 +243,8 @@ class mapExtract { function setOutputFD($fd) { $this->output_fd=$fd; } - - + + function contains_bbox(&$r) { $c =& $this->fetchBbox; if ($c['l']['x'] > $r['h']['x']) @@ -255,14 +255,14 @@ class mapExtract { return false; elseif ($c['h']['y'] < $r['l']['y']) return false; - else + else return true; } - + function getmercator($sx,$sy,$ex,$ey) { $sx = $sx*6371000.0*M_PI/180; $sy = log(tan(M_PI_4+$sy*M_PI/360))*6371000.0; - + $ex = $ex*6371000.0*M_PI/180; $ey = log(tan(M_PI_4+$ey*M_PI/360))*6371000.0; return array( @@ -276,7 +276,7 @@ class mapExtract { ) ); } - + } |