| 1 | = lvprint.pl = |
| 2 | {{{ |
| 3 | #!perl |
| 4 | #!/usr/bin/perl |
| 5 | |
| 6 | use pdflib_pl; |
| 7 | use CGI qw(:standard :html); |
| 8 | use mapscript36; |
| 9 | |
| 10 | $page_resolution = 72; # dpi |
| 11 | $page_width = 11; # inches |
| 12 | $page_height = 8.5; |
| 13 | $page_width_pixels = $page_width*$page_resolution; |
| 14 | $page_height_pixels =$page_height*$page_resolution; |
| 15 | |
| 16 | $map_resolution = 144; #dpi |
| 17 | $map_width = 10; # inches |
| 18 | $map_height = 7.5; |
| 19 | $map_width_pixels = $map_width*$map_resolution; |
| 20 | $map_height_pixels =$map_height*$map_resolution; |
| 21 | $map_scaling = $page_resolution/$map_resolution; |
| 22 | |
| 23 | sub error() { |
| 24 | my($err) = @_; |
| 25 | |
| 26 | die $err; |
| 27 | } |
| 28 | |
| 29 | $cgi = new CGI(); |
| 30 | |
| 31 | print header(-type=>'application/pdf'); |
| 32 | |
| 33 | $pdf = PDF_new(); |
| 34 | |
| 35 | &error("Unable to open output PDF file.") if (PDF_open_file($pdf, "-") == -1); |
| 36 | |
| 37 | # PDF Metadata |
| 38 | PDF_set_info($pdf, 'Creator', 'lvprint.pl'); |
| 39 | PDF_set_info($pdf, 'Author', 'Minnesota Department of Natural Resources: LandView'); |
| 40 | |
| 41 | # |
| 42 | # Build the map |
| 43 | # |
| 44 | &error("No mapfile specified.") unless $cgi->param('map'); |
| 45 | $mapfile = $cgi->param('map'); |
| 46 | $mapfile = $ENV{$cgi->param('map')} if $ENV{$cgi->param('map')}; |
| 47 | $map = new mapscript36::mapObj($mapfile) or &error("Unable to open ". $cgi->param('map') ."."); |
| 48 | |
| 49 | # Step 0: override any necessary settings |
| 50 | $map->{width} = $map_width_pixels; |
| 51 | $map->{height} = $map_height_pixels; |
| 52 | $map->{scalebar}->{status} = $mapscript36::MS_OFF; |
| 53 | |
| 54 | # Step 1: set a new extent |
| 55 | ($map->{extent}->{minx}, $map->{extent}->{miny}, $map->{extent}->{maxx}, $map->{extent}->{maxy}) = split(/ /, $cgi->param(mapext)) if $cgi->param(mapext); |
| 56 | |
| 57 | # Step 2: turn the write layers on |
| 58 | for(my $i=0; $i<$map->{numlayers}; $i++) { |
| 59 | $layer = $map->getLayer($i); |
| 60 | |
| 61 | if($layer->{status} == $mapscript36::MS_DEFAULT) { |
| 62 | next; |
| 63 | } |
| 64 | |
| 65 | $layer->{status} = $mapscript36::MS_OFF; |
| 66 | |
| 67 | foreach (split(/ /, $cgi->param(layers))) { |
| 68 | if(($layer->{name} eq $_) or ($layer->{group} eq $_)) { |
| 69 | $layer->{status} = $mapscript36::MS_ON; |
| 70 | } |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | # Step 3: draw the map |
| 75 | $img = $map->draw(); |
| 76 | |
| 77 | # Step 4: save the image to a temporary file |
| 78 | $imgfile = $map->{web}->{imagepath} . $$ . time() . ".gif"; |
| 79 | $img->saveImage($imgfile, $mapscript36::MS_PNG, $mapscript36::MS_FALSE, $mapscript36::MS_FALSE, -1); |
| 80 | |
| 81 | # clean up |
| 82 | $img->free(); |
| 83 | undef $map; |
| 84 | # |
| 85 | # End map building |
| 86 | # |
| 87 | |
| 88 | # |
| 89 | # Build the PDF file |
| 90 | # |
| 91 | $top_margin = $page_resolution*.5; # 1/2" |
| 92 | $bottom_margin = $left_margin = $right_margin = $page_resolution/2.0; # 1/2" |
| 93 | |
| 94 | PDF_begin_page($pdf, $page_width_pixels, $page_height_pixels); |
| 95 | |
| 96 | # PDF_set_parameter($pdf, "imagewarning", "true"); |
| 97 | |
| 98 | # Open and place the map |
| 99 | &error("Could not open image file ($imgfile).") if (($png = PDF_open_image_file($pdf, 'png', $imgfile, '', 0)) == -1); |
| 100 | $x = $left_margin+1; |
| 101 | $y = $page_height_pixels - $map_height_pixels*$map_scaling - $top_margin - 1; |
| 102 | PDF_place_image($pdf, $png, $x, $y, $map_scaling); |
| 103 | PDF_close_image($pdf, $png); |
| 104 | |
| 105 | # Neatline |
| 106 | |
| 107 | PDF_setrgbcolor_stroke($pdf, .267, .4, .2); # 446633 => 68 102 51 |
| 108 | $x = $left_margin + 1; |
| 109 | $y = $page_height_pixels - $map_height_pixels*$map_scaling - $top_margin - 1; |
| 110 | $w = $map_width_pixels*$map_scaling; |
| 111 | $h = $map_height_pixels*$map_scaling; |
| 112 | PDF_rect($pdf, $x, $y, $w, $h); |
| 113 | PDF_stroke($pdf); |
| 114 | |
| 115 | PDF_end_page($pdf); |
| 116 | |
| 117 | PDF_close($pdf); |
| 118 | PDF_delete($pdf); |
| 119 | |
| 120 | unlink $imgfile; |
| 121 | }}} |
| 122 | ---- |
| 123 | back to PerlMapScript |