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More Fun with PerlMonks and XPlanet

by Masem (Monsignor)
on Jul 11, 2001 at 06:30 UTC ( #95577=CUFP: print w/ replies, xml ) Need Help??

Following up on the basics from The Center of PerlMonk Mass, I've gotten a cron script that runs every 10 minutes that grabs the XML from the PM Statistics page, and another from the PM Other Users nodelet; combines that info, and generates a map of the current PM users on the globe; this time, I've also included the day/night map as well as a current (+/- 3hrs) cloud map for the earth. Now you can tell at a glance who is waaaay up past their bedtime... ;-)

You can view the maps here.

Update: I should have posted the code as well; it's not too hard to extrapolate from the previous one, but...

#!/usr/bin/perl -w use strict; use LWP::Simple; use XML::Simple; #Changed to protect the innocent... my $site = "/some/location/on/my/server"; my $monk_loc_xml = "http://www.tinymicros.com/pm/monks.xml"; my $monk_present_xml = "http://perlmonks.org/index.pl?node=other+users ++xml+ticker"; my $clouds = "http://www.ssec.wisc.edu/data/comp/latest_moll.gif"; my $cloud_file = "$site/clouds.gif"; my @colors = qw( white yellow cyan lightgrey orange ); my $cloud_data = get( $clouds ) or die "Can't get clouds"; open FILE, ">$cloud_file" or die $!; binmode FILE; print FILE $cloud_data; close FILE; my $locs_data = get( $monk_loc_xml ) or die "Can't get monks loc"; my $locs = XMLin( $locs_data ); my $present_data = get( $monk_present_xml ) or die "Can't get monks pr +esent"; my $present = XMLin( $present_data ); my $radius = 3986.34375; #Miles my $coordfile = "$site/monkpresent.coord"; open FILE, ">$coordfile" or die $!; my ( $total, $avg_x, $avg_y, $avg_z ) = ( 0,0,0,0 ); foreach my $monk ( @{ $present->{ user } } ) { my $name = $monk->{ username }; if ( exists ( $locs->{ monk }->{ $name } ) ) { my $lat = $locs->{ monk }->{ $name }->{ location }->{ latitude }; my $long = $locs->{ monk }->{ $name }->{ location }->{ longitude } +; my $color = pop @colors; print FILE "$lat $long \"$name\" font=Trebuchet_MS_Bold.ttf color=$color\n" +; unshift @colors, $color; $lat *= 3.14159/180; $long *= 3.14159/180; $total++; $avg_x += cos( $lat ) * sin( $long ); $avg_y += -cos( $lat ) * cos( $long ); $avg_z += sin( $lat ); } } close FILE; $avg_x = $avg_x/$total; $avg_y = $avg_y/$total; $avg_z = $avg_z/$total; my $lat_av = atan2( $avg_z, sqrt( $avg_x*$avg_x + $avg_y*$avg_y ) ); my $long_av = atan2( $avg_x, -$avg_y ); my $dep_av = $radius * (1 - sqrt( $avg_x*$avg_x + $avg_y*$avg_y + $avg_z*$avg_z ) ); $lat_av *= 180/3.14159; $long_av *= 180/3.14159; my $caption = "Copyright Michael K. Neylon -- Generated on " . localti +me(time); my $average = sprintf "Average: Lat: %+3.2f Long: %+3.2f Depth: %3.2 +f mi", $lat_av, $long_av, $dep_av; my $capfile = "$site/monkpresent.cap"; open FILE, ">$capfile" or die $!; print FILE "15 15 \"$caption\" image=none position=pixel color=white fontsize=1 +8\n"; print FILE "570 15 \"$average\" image=none position=pixel color=white fontsize= +18\n"; close FILE; my $globe_map = "$site/side1.tmp.png"; my $globe2_map = "$site/side2.tmp.png"; my $globe_mapf = "$site/side1.png"; my $globe2_mapf = "$site/side2.png"; my $olat = -$lat_av; my $olong = $long_av + 180; $olong -= 360 if $olong > 180; my $globe_command = qq( xplanet -markerfile $coordfile -output $globe_map -geometry 600x +600 -starfreq 0 -grid -proj orthogonal -shade 30 -grid1 6 -grid2 5 -lat $lat_av -long $long_av -markerfile $capfile -cloud_ssec $cloud_file ); my $globe2_command = qq( xplanet -markerfile $coordfile -output $globe2_map -geometry 600 +x600 -starfreq 0 -grid -proj orthogonal -shade 30 -grid1 6 -grid2 5 -lat $olat -long $olong -markerfile $capfile -cloud_ssec $cloud_file ); $globe_command =~ s/\n/ /g; $globe2_command =~ s/\n/ /g; system $globe_command; system $globe2_command; if ( -e "$globe_map" ) { rename "$globe_map", $globe_mapf; } if ( -e "$globe2_map" ) { rename "$globe2_map", $globe2_mapf; } chmod 0644, $globe_mapf, $globe2_mapf; 1;

Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain

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