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#!/usr/bin/perl -w # # drawmap - spot the monk! # Briac 'OeufMayo' Pilpré # 2001/06/15 # munged by Max 'Corion' Maischein # 2001/06/17 # Great earth maps available from http://apollo.spaceports.com/~jhasti +ng/earth.html # A jcwren's monkmap compliant map can be found at # http://www.pilpre.com/briac/small_earth.jpg # jcwren's monks.xml file available at: # http://www.tinymicros.com/pm/monks.xml #drawmap.pl -i=northam10k.jpg -o=monkmap_northam.jpg -x=-1280 -y=-896 + -m ./monks.xml -d cross.png -w 10800 -h 5400 #drawmap.pl -i=europe10k.jpg -o=monkmap_europe.jpg -x=-4880 -y=-695 + -m ./monks.xml -d cross.png -w 10800 -h 5400 -H monkmap_europe.html #drawmap.pl -i=small_earth.jpg -o=monkmap_world.jpg -x=-25 -y=-3 + -m ./monks.xml -d cross.png -C use strict; use lib 'lib/'; use vars qw($VERSION); $VERSION = 0.04; use XML::Simple; use Getopt::Mixed 'nextOption'; use GD; Getopt::Mixed::init('C:i i=s o=s d=s w=i h=i x:i y:i m=s H=s xml>m dot +>d width>w height>h input>i output>o offsetx>x offsety>y nocaption>C +html>H'); # Fetch the command line parameters my ($input, $output, $offsetx, $offsety, $dot, $xml, $width, $height, +$nocaption, $html); while (my ($option, $value, $pretty) = nextOption()) { $input = $value if $option eq 'i'; $output = $value if $option eq 'o'; $offsetx = $value if $option eq 'x'; $offsety = $value if $option eq 'y'; $xml = $value if $option eq 'm'; $dot = $value if $option eq 'd'; $width = $value if $option eq 'w'; $height = $value if $option eq 'h'; $nocaption = 1 if $option eq 'C'; if ($option eq 'H') { $html = $value; $nocaption = 0; }; } Getopt::Mixed::cleanup(); &usage unless ($input && $output); $offsetx ||= 0; $offsety ||= 0; my (%monks, %href); # Parse the monks coordinates XML file I fetched from jcwren's stats s +ite. # ( code to fetch & create the XML is available on request ) my $xs = new XML::Simple(); my $ref = $xs->XMLin($xml); # Fill the monks hash with their respective locations foreach (keys %{$ref->{monk}}){ push (@{$monks{$_}}, ( $ref->{monk}->{$_}->{location}->{latitude}, $ref->{monk}->{$_}->{location}->{longitude}, )); } # Load the pictures we need. my $map = GD::Image->newFromJpeg($input); my $flag = GD::Image->newFromPng($dot); my $white = $map->colorResolve(255,255,255); my $black = $map->colorResolve(0,0,0); unless ($width && $height){ ($width, $height) = $map->getBounds(); } my %points; #keep track of the points for managing monks density my %boxes; #keep track of the caption bounding boxes # First, lets filter out all monks not on the map : my ($img_width,$img_height) = $map->getBounds(); my @monks_off_map = grep { my ($x,$y) = coord2pix($monks{$_}->[0],$monks{$_}->[1], $width, $height); # Tweak the x/y to fit the picture $x += $offsetx; $y += $offsety; # We want only the off-map monks : ! (between(0,$width-$offsetx, $x) && between(0,$heigh +t-$offsety,$y)) || ! (between(0,$img_width, $x) && between(0,$img_height +,$y)); } keys %monks; foreach (@monks_off_map) { delete $monks{$_}; }; # Now, we want to place all position markers : my $f = 6; # "closeness" factor foreach (keys %monks){ # Convert the lat/long to x/y my ($x,$y) = coord2pix($monks{$_}->[0],$monks{$_}->[1], $width, $height); # Tweak the x/y to fit the picture $x += $offsetx; $y += $offsety; $points{$_} = [$x-$f, $y-$f, $x+$f, $y+$f]; # store the current + pos $boxes{"__$_"} = [$x-$f, $y-$f, $x+$f, $y+$f]; # store the current + pos of the bbox # Pinpoints the monk location on the map $map->copy($flag, $x, $y, 0,0,7,7); }; foreach (keys %monks){ # Convert the lat/long to x/y my ($x,$y) = coord2pix($monks{$_}->[0],$monks{$_}->[1], $width, $height); # Tweak the x/y to fit the picture $x += $offsetx; $y += $offsety; # Let's find if we have a monk close to the current one unless ($nocaption){ my ($x1,$y1); my ($radius, $angle) = (10,0); my $textl = 7 * length($_); #length of the caption # Create a box for the label my @box = (int($x-$textl/2), $y-17, int($x+$textl/2), $y-18+13 +); if (find_density(\%points, $_, $x,$y) || # If true the mo +nk is too close find_intersect(\%boxes, $_, @box) # or the place has b +een taken already ) { CLOSE :{ $radius += 5; $angle += 10 % 360; # Find a point on a circle. # provided by CheeseLord: (x+r cos a, y+r sin a) ($x1,$y1)=(int($x + ($radius * cos $angle)), int($y+($radi +us * sin $angle))); # Move the label @box = (int($x1-$textl/2), $y1, int($x1+$textl/2), $y1+13) +; # Check to see if it intersects with a previous caption redo CLOSE if find_intersect(\%boxes, $_, @box); $map->line($x+4, $y+4, $x1+4, $y1+4, $white); $map->string(gdMediumBoldFont, $x1 - $textl/2 + 2, $y1, $_ +, $black); $map->string(gdMediumBoldFont, $x1 - $textl/2 + 3, $y1, $_ +, $white); } } else { $map->string(gdMediumBoldFont, int($x - $textl/2)+1, $y-17 +, $_, $black); $map->string(gdMediumBoldFont, int($x - $textl/2), $y-18 +, $_, $white); } $boxes{$_} = [@box]; } } # We now save our masterpiece on a storage device open JPGOUT, "> $output" or die $!; binmode JPGOUT; print JPGOUT $map->jpeg(75); if ($html){ open HTML, "> $html" or die $!; print HTML <<"__HTML__"; <html> <head> <title>drawmap - $output</title> </head> <body> <h1>drawmap - $output</h1> <p><img border="0" src="$output" usemap="#drawmap" alt="$outpu +t" /></p> <map name="drawmap"> __HTML__ foreach (keys %boxes){ print HTML qq'\t\t<area '; print HTML 'coords="', join( ',', @{$boxes{$_}} ), '" '; s/^__//; print HTML qq'href="http://www.perlmonks.org/index.pl?node=$_" sha +pe="rect" alt="$_" />\n'; } print HTML '</map>\n</body>\n</html>'; } sub between { my ($a1,$a2,$b) = @_; return ($a1 <= $b) && ($b <= $a2); }; sub point_in_rectangle { my ($left,$top,$right,$bottom,$x,$y) = @_; return between($left,$right,$x) && between($top,$bottom,$y) }; sub rectangles_intersect { my ($a_lft,$a_top,$a_rgt,$a_btm,$b_lft,$b_top,$b_rgt,$b_btm) = @_; return ( # One of the four corners within the other rectangle point_in_rectangle($a_lft,$a_top,$a_rgt,$a_btm,$b_lft,$b_t +op) || point_in_rectangle($a_lft,$a_top,$a_rgt,$a_btm,$b_rgt,$b_t +op) || point_in_rectangle($a_lft,$a_top,$a_rgt,$a_btm,$b_lft,$b_b +tm) || point_in_rectangle($a_lft,$a_top,$a_rgt,$a_btm,$b_rgt,$b_b +tm) || point_in_rectangle($b_lft,$b_top,$b_rgt,$b_btm,$a_lft,$a_t +op) || point_in_rectangle($b_lft,$b_top,$b_rgt,$b_btm,$a_rgt,$a_t +op) || point_in_rectangle($b_lft,$b_top,$b_rgt,$b_btm,$a_lft,$a_b +tm) || point_in_rectangle($b_lft,$b_top,$b_rgt,$b_btm,$a_rgt,$a_b +tm) || # Or an intersection where no corner is within the other r +ectangle ( between( $a_lft, $a_rgt, $b_lft ) && between( $a_lft, $a_rgt, $b_rgt ) && between( $b_top, $b_btm, $a_top ) && between( $b_top, $b_btm, $a_btm ) ) || ( between( $b_lft, $b_rgt, $a_lft ) && between( $b_lft, $b_rgt, $a_rgt ) && between( $a_top, $a_btm, $b_top ) && between( $a_top, $a_btm, $b_btm ) ) ); }; sub find_intersect { my $boxes = shift; my $current = shift; my ($a_lft,$a_top, $a_rgt, $a_btm) = @_; my $overlap; foreach (keys %{$boxes}){ next if $_ eq $current; next if $_ eq "__$current"; # The own location marker +is never "too close" my ($b_lft,$b_top, $b_rgt, $b_btm) = @{$boxes->{$_}}; # Collison tests provided by Corion. I probably left some out. if (rectangles_intersect($a_lft,$a_top,$a_rgt,$a_btm,$b_lft,$b +_top,$b_rgt,$b_btm)){ $overlap++; last; } } return $overlap; } sub find_density { my $dens = shift; my $current = shift; my ($x,$y) = @_; my $too_close; foreach (keys %{$dens}){ next if $_ eq $current; my ($x1,$y1,$x2,$y2) = @{$dens->{$_}}; if (point_in_rectangle($x1,$y1,$x2,$y2, $x,$y)){ $too_close++; last; } } return $too_close; } sub coord2pix { # Convert the lat/long to their actual coordinates in the # picture (thanks to jcwren for the tips!) my ($lat, $long, $width, $height) = @_; my $x = $width / 2 + ($long / 360 * $width); my $y = $height / 2 - ($lat / 180 * $height); return ( int $x, int $y ); } sub usage { print STDERR <<"__USAGE__"; drawmap - v.$VERSION perl drawmap.pl -i inputfile.jpg -o outputfile.jpg -m ./locat.xml -d +dot.png Required arguments: -i --input : Name of the map base. -o --output : Name of the output file created by drawmap -d --dot : Location of the png used as location marker -m --xml : Location of the xml coordinates file Optional arguments: -x --offsetx : Offset of the x axis -y --offsety : Offset of the y axis -C --nocaption : Does not draw the caption above the marker -H --html : Generate a HTML with an IMAGEMAP (cancels the -C) requires the name of the html file to create -w --width : Width of the original whole earth map (useful when zoo +ming) -h --height : Height of the original whole earth map __USAGE__ die "\n"; } __DATA__ <!-- monks.xml DTD --> <!ELEMENT monkmap (monk+)> <!ATTLIST monk source CDATA #REQUIRED> <!ELEMENT monk (name, location)> <!ATTLIST monk id CDATA #REQUIRED> <!ELEMENT name (#PCDATA)> <!ELEMENT location (latitude, longitude)> <!ELEMENT latitude (#PCDATA)> <!ELEMENT longitude (#PCDATA)>

In reply to drawmap.pl by OeufMayo

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    [Corion]: choroba: No, I don't remember that story, but yes, it matches my experience ;))
    [ambrus]: Hopefull the object isn't kept alive, the events are processed immediately, but you'd have to read a lot of source code to be sure about that.
    [Corion]: ambrus: I think both of AnyEvent and Prima are pretty tight in their memory management because they both are cooperative multitasking and (I think) both use the Perl memory management for managing things
    [Corion]: ambrus: And for Windows, I don't think that Prima knows if there still are messages queued for an object (in the Windows message loop). Finding that out would take lots of effort for little gain
    [ambrus]: And even if this works, I'm still not sure you can't get double timeouts from a Timer.
    [ambrus]: Corion: well Prima::Object says something like that the cleanup method will send an onDestory message and that you can't get more messages after cleanup, or something.
    [Corion]: ambrus: Yeah - I don't think the deep source dive will be necessary if things are implemented as simple as they could be :)) And hopefully I won't need (more) timely object destruction. I can update the screen at 60Hz and hopefully even do HTTP ...
    [Corion]: ... transfers in the background. Now that I think about it, this maybe even means that I can run the OpenGL filters on Youtube input :)
    [ambrus]: Corion: I mentioned that the unix event loop of Prima always wakes up at least once every 0.2 seconds. Have you found out whether the win32 event loop of Prima does that too?
    [Corion]: ambrus: Hmm - I would assume that the onDestroy message is sent from the destructor and doesn't go through the messageloop, but maybe it is sent when a window gets destroyed but all components are still alive...

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