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|
#!/usr/bin/perl -w
use strict;
use CGI;
BEGIN {
push @INC , '../';
push @INC , '../SVG';
}
use SVG;
my $VERSION = 3;
#---------Create the CGI object which is required to handle the header
my $p = CGI->new();
$| = 1;
#---------print the header just before outputting to screen
#---------
#---------Create the svg object
my $height = $p->param('h') || 400;
my $width = $p->param('w') || 800;
my $svg= SVG->new(width=>$width,height=>$height);
my $y=$svg->group( id=>'group_generated_group',style=>{ stroke=>'red', fill=>'green' });
my $z=$svg->tag('g', id=>'tag_generated_group',style=>{ stroke=>'red', fill=>'black' });
my $ya = $y -> anchor(
-href => 'http://somewhere.org/some/line.html',
-target => 'new_window_0');
my $line_transform = 'matrix(0.774447 0.760459 0 0.924674 357.792 -428.792)';
my $line = $svg->line(id=>'l1',x1=>(rand()*$width+5),
y1=>(rand()*$height+5),
x2=>(rand()*$width-5),
y2=>(rand()*$height-5),
style=>&obj_style,);
#---------
foreach (1..&round_up(rand(20))) {
my $myX = $width-rand(2*$width);
my $myY = $height-rand(2*$height);
my $rect = $y->rectangle (x=>$width/2,
y=>$height/2,
width=>(50+50*rand()),
height=>(50+50*rand()),
rx=>20*rand(),
ry=>20*rand(),
id=>'rect_1',
style=>&obj_style);
$rect->animate(attributeName=>'transform',
attributeType=>'XML',
from=>'0 0',
to=>$myX.' '.$myY,
dur=>&round_up(rand(20),2).'s',
repeatCount=>&round_up(rand(30)),
restart=>'always',
#-method=>'transform',
);
}
my $a = $z -> anchor(
-href => 'http://somewhere.org/some/other/page.html',
-target => 'new_window_0',
id=>'anchor a');
my $a1 = $z -> anchor(
-href => '/index.html',
-target => 'new_window_1',
id=>'anchor a1');
my $a2 = $z -> anchor(
-href => '/svg/index.html',
-target => 'new_window_2',
id=>'anchor a2');
#---------
my $c;
foreach (1..&round_up(rand(5))) {
$c= $a->circle(cx=>($width-20)*rand(),
cy=>($height-20)*rand(),
r=>100*rand(),
id=>'c1',
style=>&obj_style);
$c = $a1->circle(cx=>($width-20)*rand(),
cy=>($height-20)*rand(),
r=>100*rand(),
id=>'c2',
style=>&obj_style);
}
#---------
my $xv = [$width*rand(), $width*rand(), $width*rand(), $width*rand()];
my $yv = [$height*rand(), $height*rand(), $height*rand() ,$height*rand()];
my $points = $a->get_path(x=>$xv,
y=>$yv,
-type=>'polyline',
-closed=>'true',);
$c = $a1->polyline (%$points,
id=>'pline1',
style=>&obj_style);
#---------
$xv = [$width*rand(), $width*rand(), $width*rand(), $width*rand()];
$yv = [$height*rand(), $height*rand(), $height*rand() ,$height*rand()];
$points = $a->get_path(x=>$xv,
y=>$yv,
-type=>'polygon',);
$c = $a->polygon (%$points,
id=>'pgon1',
style=>&obj_style);
#---------
my $t=$a2->text(id=>'t1',
transform=>'rotate(-45)',
style=>&text_style);
#---------
my $u=$a2->text(id=>'t3',
x=>$width/2*rand(),
y=>($height-80)*rand(),
transform=>'rotate('.(-2.5*5*rand()).')',
style=>&text_style);
my $v=$a2->tag('text',
id=>'t5',
x=>$width/2*rand(),
y=>$height-40+5*rand(),
transform=>'rotate('.(-2.5*5*rand()).')',
style=>&text_style);
my $w=$a2->text(id=>'t5',
x=>$width/2*rand(),
y=>$height-20+5*rand(),
transform=>'rotate('.(-2.5*5*rand()).')',
style=>&text_style);
$t->cdata('Text generated using the high-level "text" tag');
$t->cdata('Courtesy of RO IT Systems GmbH');
$v->cdata('Text generated using the low-level "tag" tag');
$w->cdata('But what about inline SVG? Yes, we do that too');
$w->cdata('All this with SVG.pm? Wow.');
print $p->header('image/svg-xml');
print $svg->render
;
exit;
#################
# Subroutine to round up the value of a number or of a text representation of number
#
sub round_up {
my ($x, $precision) = shift;
$x =~ s/^\s+//g;
$x =~ s/\s+$//g;
$x =~ s/,//g;
my $y;
$precision = 0 unless $precision;
($x, $y) = split( /\./, $x) if $x =~ /\./;
my $y1 = substr($y, 0, $precision);
my $y2 = substr($y, $precision, 1);
if ($y2 >= 5) {
$precision?$y1++:$x++;
}
return "$x$y1";
} # sub round_val
sub obj_style {
my $style = {'stroke-miterlimit'=>(4*rand()),
'stroke-linejoin'=>'miter',
'stroke-linecap'=>'round',
'stroke-width'=>(0.1+0.5*rand()),
'stroke-opacity'=>(0.5+0.5*rand()),
'stroke'=>'rgb('.255*round_up(rand()).','.255*round_up(rand()).','.255*round_up(rand()).')',
'fill-opacity'=>(0.5+0.5*rand()),
'fill'=>'rgb('.255*round_up(rand()).','.255*round_up(rand()).','.255*round_up(rand()).')',
'opacity'=>(0.5+0.5*rand()) };
return $style;
}
sub text_style {
my $style = {'font-family'=>'Arial',
'font-size'=>8+5*rand(),
'stroke-width'=>1+2*rand(),
'stroke-opacity'=>(0.2+0.5*rand()),
'stroke'=>'rgb('.255*round_up(rand()).','.255*round_up(rand()).','.255*round_up(rand()).')',
'fill-opacity'=>1,
'fill'=>'rgb('.255*round_up(rand()).','.255*round_up(rand()).','.255*round_up(rand()).')',
'opacity'=>(0.5+0.5*rand()) };
return $style;
}
#---------
|
