#!/usr/bin/perl -w # # Convert a single gnuplot demo script to a web page # Usage: # webify xxx # # Reads xxx.dem and creates xxx.html along with associated # png images output to xxx.<n>.png # # If gpsavediff is present also create a set of scripts # xxx.<n>.gnu corresponding to the minimal set of commands # needed to generate that png image. # # If gnuplot_demo.css is present, link to it as a stylesheet. # # Ethan A Merritt <merritt@u.washington.edu> # December 2003 # # EAM Jan 2004 # use gpsavediff if available # link to gnuplot_demo.css if available # # EAM Aug 2005 # If DEMOTERM is present as an environmental variable, then use # set term DEMOTERM # rather than the default terminal settings # E.g. (for image demo) # setenv DEMOTERM "png truecolor enhanced font arial 8 transparent size 420,320" # ./webify.pl image # # EAM Apr 2011 # Mouseable demos # use Env qw(DEMOTERM GNUPLOT_LIB); use Time::localtime; use HTML::Entities; # Use the in-tree copy of gnuplot if there is one my $gnuplot = ( -x "../../src/gnuplot" ) ? "../../src/gnuplot" : "gnuplot" ; if ((!defined $ENV{GNUPLOT_LIB}) || $GNUPLOT_LIB eq "") { $GNUPLOT_LIB = ".."; } my $date = ctime(); my $plot = 1; my $mousing = 0; my $name = "foo"; # options my $iar = 0; if ($ARGV[$iar] eq "--mouse") { $mousing = 1; $iar++; } $name = $ARGV[$iar]; print STDERR $name, "\n"; # input and output files open(IN, "<$GNUPLOT_LIB/$name.dem") or die "can't open $GNUPLOT_LIB/$name.dem"; open(OUT, ">$name.html") or die "can't open $name.html"; binmode IN, ":encoding(UTF-8)"; binmode OUT,":encoding(UTF-8)"; # open pipe to gnuplot and set terminal type open(GNUPLOT, "|$gnuplot") or die "can't find gnuplot"; binmode GNUPLOT,":encoding(UTF-8)"; if ((defined $ENV{DEMOTERM}) && $DEMOTERM ne "") { print GNUPLOT "set term $DEMOTERM\n"; } else { if ($mousing) { print GNUPLOT "set term svg enhanced font 'arial,10' mouse name \"$name"."_$plot\" jsdir '.' size 600,400 dynamic\n"; } else { print GNUPLOT "set term svg enhanced font 'arial,10' name \"$name"."_$plot\" jsdir '.' size 600,400 dynamic\n"; } } print GNUPLOT "set output \"$name.$plot.svg\"\n"; # find out if gpsavediff is available in current path my $savescripts = T; {local $^W=0; $savescripts = open(FOO, "|gpsavediff") } close FOO if ($savescripts); # Boiler plate header print OUT "<!DOCTYPE HTML>\n"; print OUT "<html>\n<head>\n<title>gnuplot demo script: $name.dem </title>\n"; print OUT "<meta charset=\"UTF-8\" />\n"; print OUT "<link rel=\"stylesheet\" href=\"gnuplot_demo.css\" type=\"text/css\">\n" if (-e "gnuplot_demo.css"); print OUT "</head>\n"; print OUT "<body>\n"; print OUT "<a href=index.html><image src=return.png alt=\"Back to demo index\" class=\"float-right\"></a>\n"; print OUT "<h2>gnuplot demo script: <font color=blue>$name.dem</font> </h2>\n"; print OUT "<i>autogenerated by webify.pl on $date</i>"; # try to find gnuplot version $version = `$gnuplot --version`; print OUT "\n<br><i>gnuplot version $version</i>"; print OUT "<hr>\n"; # Start processing print OUT "<table><tr><td valign=top>\n"; print OUT "<embed src=\"$name.$plot.svg\" type=\"image/svg+xml\" width=600 height=400 class=\"float-right\">\n"; print OUT "</td><td>\n"; print OUT "<pre>\n"; while (<IN>) { if (/^ *pause -1/) { if ($savescripts) { print OUT "<br>Click <a href=$name.$plot.gnu>here</a> ", "for minimal script to generate this plot\n"; print GNUPLOT "save \"| gpsavediff > $name.$plot.gnu\"\n"; } print OUT "</pre></td></tr></table>\n<br clear=all>\n<hr>\n"; $plot++; print OUT "<table class=\"noborder\"><tr><td>\n"; print OUT "<embed src=\"$name.$plot.svg\" type=\"image/svg+xml\" width=600 height=400 class=\"float-right\">\n"; print OUT "</td><td valign=top>\n"; print OUT "<pre>\n"; if ((defined $ENV{DEMOTERM}) && $DEMOTERM ne "") { print GNUPLOT "set term $DEMOTERM\n"; } else { if ($mousing) { print GNUPLOT "set term svg enhanced font 'arial,10' mouse name \"$name"."_$plot\" jsdir '.' size 600,400 dynamic\n"; } else { print GNUPLOT "set term svg enhanced font 'arial,10' name \"$name"."_$plot\" jsdir '.' size 600,400 dynamic\n"; } } print GNUPLOT "set output \"$name.$plot.svg\"\n"; } elsif (/^pause/) { if ((defined $ENV{DEMOTERM}) && $DEMOTERM ne "") { print GNUPLOT "set term $DEMOTERM\n"; } else { if ($mousing) { print GNUPLOT "set term svg enhanced font 'arial,10' mouse name \"$name"."_$plot\" jsdir '.' size 600,400 dynamic\n"; } else { print GNUPLOT "set term svg enhanced font 'arial,10' name \"$name"."_$plot\" jsdir '.' size 600,400 dynamic\n"; } } print GNUPLOT "set output \"$name.$plot.svg\"\n"; } else { print OUT HTML::Entities::encode($_); print GNUPLOT; } } # Amazingly enough, that's it. # Replace leftover empty file with a legal svg empty plot before leaving. close GNUPLOT; unlink("$name.$plot.svg"); open(EMPTY, ">$name.$plot.svg") or die "can't open empty plot"; print EMPTY <<MT <?xml version="1.0" standalone="no"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg width="1" height="1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> </svg> MT ; print OUT "</pre></td></tr><table>\n"; print OUT "</body>\n</html>\n";