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# Before `make install' is performed this script should be runnable with
# `make test'. After `make install' it should work as `perl test.pl'
######################### We start with some black magic to print on failure.
# Change 1..1 below to 1..last_test_to_print .
# (It may become useful if the test is moved to ./t subdirectory.)
BEGIN { $| = 1; print "1..9\n"; }
END {print "not ok 1\n" unless $loaded;}
use Imager qw(:all);
sub PI () { 3.14159265358979323846 }
$loaded = 1;
print "ok 1\n";
init_log("testout/t75aapolyaa.log",1);
$red = Imager::Color->new(255,0,0);
$green = Imager::Color->new(0,255,0);
$blue = Imager::Color->new(0,0,255);
$white = Imager::Color->new(255,255,255);
$img = Imager->new(xsize=>20, ysize=>10);
@data = translate(5.5,5,
rotate(0,
scale(5, 5,
get_polygon(n_gon => 5)
)
)
);
my ($x, $y) = array_to_refpair(@data);
i_poly_aa($img->{IMG}, $x, $y, $white);
print "ok 2\n";
$img->write(file=>"testout/t75.ppm") or die $img->errstr;
print "ok 3\n";
$zoom = make_zoom($img, 8, \@data, $red);
$zoom->write(file=>"testout/t75zoom.ppm") or die $zoom->errstr;
print "ok 4\n";
$img = Imager->new(xsize=>300, ysize=>100);
for $n (0..55) {
@data = translate(20+20*($n%14),18+20*int($n/14),
rotate(15*$n/PI,
scale(15, 15,
get_polygon('box')
)
)
);
my ($x, $y) = array_to_refpair(@data);
i_poly_aa($img->{IMG}, $x, $y, NC(rand(255), rand(255), rand(255)));
}
$img->write(file=>"testout/t75big.ppm") or die $img->errstr;
print "ok 5\n";
$img = Imager->new(xsize => 300, ysize => 300);
$img -> polygon(color=>$white,
points => [
translate(150,150,
rotate(45*PI/180,
scale(70,70,
get_polygon('wavycircle', 32*8, sub { 1.2+1*cos(4*$_) }))))
],
) or die $img->errstr();
$img->write(file=>"testout/t75wave.ppm") or die $img->errstr;
print "ok 6\n";
$img = Imager->new(xsize=>10,ysize=>6);
@data = translate(165,5,
scale(80,80,
get_polygon('wavycircle', 32*8, sub { 1+1*cos(4*$_) })));
print "XXX\n";
$img -> polygon(color=>$white,
points => [
translate(165,5,
scale(80,80,
get_polygon('wavycircle', 32*8, sub { 1+1*cos(4*$_) })))
],
) or die $img->errstr();
make_zoom($img,20,\@data, $blue)->write(file=>"testout/t75wavebug.ppm") or die $img->errstr;
print "ok 7\n";
$img = Imager->new(xsize=>300, ysize=>300);
$img->polygon(fill=>{ hatch=>'cross1', fg=>'00FF00', bg=>'0000FF', dx=>3 },
points => [
translate(150,150,
scale(70,70,
get_polygon('wavycircle', 32*8, sub { 1+1*cos(4*$_) })))
],
) or die $img->errstr();
$img->write(file=>"testout/t75wave_fill.ppm") or die $img->errstr;
print "ok 8\n";
$img = Imager->new(xsize=>300, ysize=>300, bits=>16);
$img->polygon(fill=>{ hatch=>'cross1', fg=>'00FF00', bg=>'0000FF' },
points => [
translate(150,150,
scale(70,70,
get_polygon('wavycircle', 32*8, sub { 1+1*cos(5*$_) })))
],
) or die $img->errstr();
$img->write(file=>"testout/t75wave_fill16.ppm") or die $img->errstr;
print "ok 9\n";
malloc_state();
sub get_polygon {
my $name = shift;
if (exists $primitives{$name}) {
return @{$primitives{$name}};
}
if (exists $polygens{$name}) {
return $polygens{$name}->(@_);
}
die "polygon spec: $name unknown\n";
}
sub make_zoom {
my ($img, $sc, $polydata, $linecolor) = @_;
# scale with nearest neighboor sampling
my $timg = $img->scale(scalefactor=>$sc, qtype=>'preview');
# draw the grid
for($lx=0; $lx<$timg->getwidth(); $lx+=$sc) {
$timg->line(color=>$green, x1=>$lx, x2=>$lx, y1=>0, y2=>$timg->getheight(), antialias=>0);
}
for($ly=0; $ly<$timg->getheight(); $ly+=$sc) {
$timg->line(color=>$green, y1=>$ly, y2=>$ly, x1=>0, x2=>$timg->getwidth(), antialias=>0);
}
my @data = scale($sc, $sc, @$polydata);
push(@data, $data[0]);
my ($x, $y) = array_to_refpair(@data);
$timg->polyline(color=>$linecolor, 'x'=>$x, 'y'=>$y, antialias=>0);
return $timg;
}
# utility functions to manipulate point data
sub scale {
my ($x, $y, @data) = @_;
return map { [ $_->[0]*$x , $_->[1]*$y ] } @data;
}
sub translate {
my ($x, $y, @data) = @_;
map { [ $_->[0]+$x , $_->[1]+$y ] } @data;
}
sub rotate {
my ($rad, @data) = @_;
map { [ $_->[0]*cos($rad)+$_->[1]*sin($rad) , $_->[1]*cos($rad)-$_->[0]*sin($rad) ] } @data;
}
sub array_to_refpair {
my (@x, @y);
for (@_) {
push(@x, $_->[0]);
push(@y, $_->[1]);
}
return \@x, \@y;
}
BEGIN {
%primitives = (
box => [ [-0.5,-0.5], [0.5,-0.5], [0.5,0.5], [-0.5,0.5] ],
triangle => [ [0,0], [1,0], [1,1] ],
);
%polygens = (
wavycircle => sub {
my $numv = shift;
my $radfunc = shift;
my @radians = map { $_*2*PI/$numv } 0..$numv-1;
my @radius = map { $radfunc->($_) } @radians;
map {
[ $radius[$_] * cos($radians[$_]), $radius[$_] * sin($radians[$_]) ]
} 0..$#radians;
},
n_gon => sub {
my $N = shift;
map {
[ cos($_*2*PI/$N), sin($_*2*PI/$N) ]
} 0..$N-1;
},
);
}
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