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#!/usr/bin/perl -w
#
# $Id: Transformations.t,v 1.3 2004-04-02 12:03:34 mertz Exp $
# Author: Christophe Mertz
#
# testing all the import
BEGIN {
if (!eval q{
# use Test::More qw(no_plan);
use Test::More tests => 21;
1;
}) {
print "# tests only work properly with installed Test::More module\n";
print "1..1\n";
print "ok 1\n";
exit;
}
if (!eval q{
use Tk::Zinc;
1;
}) {
print "unable to load Tk::Zinc";
print "1..1\n";
print "ok 1\n";
exit;
}
if (!eval q{
MainWindow->new();
1;
}) {
print "# tests only work properly when it is possible to create a mainwindow in your env\n";
print "1..1\n";
print "ok 1\n";
exit;
}
}
$mw = MainWindow->new();
$zinc = $mw->Zinc(-width => 100, -height => 100);
my $coords = [ [10,10], [40, 40] ];
like ($zinc, qr/^Tk::Zinc=HASH/ , "zinc has been created");
my $g = $zinc->add('group',1);
$zinc->scale($g,2,2);
my $rect1 = $zinc->add('rectangle', $g, [10,10,40,40]);
# todo : add a test for the to-come method to get a transform!
is_deeply([ $zinc->coords($rect1) ],
[ [10,10], [40, 40] ],
"coords are not modified by the group transform!");
is_deeply([
$zinc->transform(1, $g, [100, 100, 300, 500] )
],
[ 50, 50, 150, 250 ],
"transform from window coordinates to group");
is_deeply([
$zinc->transform($g, 1, [$zinc->coords($rect1)] )
],
[ [20,20], [80, 80] ],
"transform to window coordinates");
# question suggested by D. Etienne (30 sept 2003):
# is it possible to get the window coordinate of a transformed item?
# the answer is of course yes and it is verified here.
my $rect2 = $zinc->add('rectangle', 1, [10,10,40,40]);
# applying a transform to the rectangle:
$zinc->scale($rect2, 2,2);
# todo : add a test for the to-come method to get a transform!
is_deeply([ $zinc->coords($rect1) ],
[ [10,10], [40, 40] ],
"coords are not modified by the item transform!");
is_deeply([
$zinc->transform(1, $rect2, [100, 100, 300, 500] )
],
[ 50, 50, 150, 250 ],
"transform window coordinates with same transform than rect2 ");
is_deeply([
$zinc->transform($rect2, 1, [$zinc->coords($rect2)] )
],
[ [20,20], [80, 80] ],
"transform rect2 coordinates to window coordinates, with group 1");
is_deeply([
$zinc->transform($rect2, 'device', [$zinc->coords($rect2)] )
],
[ [20,20], [80, 80] ],
"transform rect2 coordinates to window coordinates with 'device'");
$zinc->scale(1, 0.5, 0.5);
is_deeply([
$zinc->transform($rect2, 'device', [$zinc->coords($rect2)] )
],
[ [10,10], [40, 40] ],
"transform rect2 coordinates to window coordinates with 'device'");
# setting the top group transformation to the id, with a translation with tset
$zinc->tset(1, 1,0, 0,1, -20,-10);
is_deeply([
$zinc->transform($rect2, 'device', [$zinc->coords($rect2)] )
],
[ [0,10], [60, 70] ],
"rect2 window coordinates with 'device' after topgroup transfo setting");
# restting top group transformation
$zinc->treset(1);
is_deeply([
$zinc->transform($rect2, 'device', [$zinc->coords($rect2)] )
],
[ [20,20], [80, 80] ],
"rect2 window coordinates with 'device' after topgroup treset");
# resetting the rect2 trasnformation
$zinc->treset($rect2);
is_deeply([
$zinc->transform($rect2, 'device', [$zinc->coords($rect2)] )
],
[ [10,10], [40, 40] ],
"rect2 window coordinates with 'device' after rect2 treset");
$zinc->treset($rect2);
$zinc->skew($rect2, 10,00);
$zinc->skew($rect2, -10,00);
ok(&similarPoints ([
$zinc->transform($rect2, 'device', [$zinc->coords($rect2)] )
],
[ [10, 10], [40, 40] ]),
"rect2 window coordinates with 'device' after rect2 skew (back and forth)");
$zinc->treset($rect2);
$zinc->skew($rect2, -10,00);
$zinc->skew($rect2, 10,00);
ok(&similarPoints ([
$zinc->transform($rect2, 'device', [$zinc->coords($rect2)] )
],
[ [10, 10], [40, 40] ]),
"rect2 window coordinates with 'device' after rect2 skew (forth and back)");
$zinc->treset($rect2);
$zinc->translate($rect2, 34,43);
$zinc->translate($rect2, 15,15, 'absolute'); # the previous relative translation will be overridden
is_deeply([
$zinc->transform($rect2, 'device', [$zinc->coords($rect2)] )
],
[ [25,25], [55, 55] ],
"rect2 window coordinates with 'device' after rect2 absolute translation");
if (0) {
$zinc->treset($rect2);
print "0 ", $zinc->tget($rect2, 'rotation'), "\n";
$zinc->rotate($rect2, 3.14159);
print "+3.14 ", $zinc->tget($rect2, 'rotation'), "\n";
$zinc->rotate($rect2, -3.14159, 0);
print "0 ", $zinc->tget($rect2, 'rotation'), "\n";
$zinc->rotate($rect2, 180, 1);
print "180 ", $zinc->tget($rect2, 'rotation'), "\n";
$zinc->rotate($rect2, -3.14159, 100, 200);
print "0 ", $zinc->tget($rect2, 'rotation'), "\n";
$zinc->rotate($rect2, -3.14159, 0, 100, 200);
print "3.14 ", $zinc->tget($rect2, 'rotation'), "\n";
$zinc->rotate($rect2, 180, 1, 100, 200);
print "0 ", $zinc->tget($rect2, 'rotation'), "\n";
$zinc->rotate($rect2, 180, 1, 100, 200, 300);
print "3.14 ", $zinc->tget($rect2, 'rotation'), "\n";
$zinc->rotate($rect2, 180, 1, 100, 200, 300, 600);
print $zinc->tget($rect2, 'rotation'), "\n";
$zinc->rotate($rect2, 180, 1, 100, 200, 300, 600, 900);
print $zinc->tget($rect2, 'rotation'), "\n";
}
$zinc->treset($rect2);
$zinc->translate($rect2, 40,50);
$zinc->scale($rect2, 2,3);
$zinc->rotate($rect2, 3.1415/2);
my ($m00, $m01, $m10, $m11, $m20, $m21) = $zinc->tget($rect2);
#print "matrix: $m00, $m01, $m10, $m11, $m20, $m21\n";
ok(&similarFlatArray ([$zinc->tget($rect2)],
[0, 2, -3, 0, -150, 80],
[0.001, 0.001, 0.001, 0.001, 1, 1]),
"tget of rect2");
my ($xTranslate, $yTranslate, $xScale, $yScale, $angle, $skew) = $zinc->tget($rect2, 'all');
#print "matrix: $xTranslate, $yTranslate, $xScale, $yScale, $angle, $skew\n";
ok(&similarFlatArray ([$zinc->tget($rect2,'all')],
[-150, 80, 2, 3, 3.14159/2, 0 ],
[1, 1, 0.001, 0.001, 0.001, 0.001]),
"tget 'all' of rect2");
($xTranslate, $yTranslate) = $zinc->tget($rect2, 'translation');
#print "translate: $xTranslate, $yTranslate\n";
ok(&similarFlatArray ([$zinc->tget($rect2,'translation')],
[-150, 80],
[1, 1 ]),
"tget 'translation' of rect2");
($xScale, $yScale) = $zinc->tget($rect2, 'scale');
#print "scale: $xScale, $yScale\n";
ok(&similarFlatArray ([$zinc->tget($rect2,'scale')],
[2, 3, ],
[0.001, 0.001]),
"tget 'scale' of rect2");
($m00, $m01, $m10, $m11, $m20, $m21) = $zinc->tget($rect2, 'rotation');
ok(&similarFlatArray ([$zinc->tget($rect2,'rotation')],
[3.14159/2],
[0.001 ]),
"tget 'rotation' of rect2");
#$zinc->skew($rect2, 10,0);
ok(&similarFlatArray ([$zinc->tget($rect2,'skew')],
[0],
[0.001 ]),
"tget 'skew' of rect2");
sub similarPoints {
my ($ref1, $ref2)= @_;
diag ("waiting a reference for \$ref1" . ref ($ref1)), return 0 unless ref ($ref1) eq 'ARRAY';
diag ("waiting a reference for \$ref2"), return 0 unless ref ($ref2) eq 'ARRAY';
my @array1 = @{$ref1};
my @array2 = @{$ref2};
diag ("arrays for \$ref1 and \$ref2 are not of same length"), return 0
unless scalar @array1 == @array2;
for my $i (0.. $#array1) {
my $pt1 = $array1[$i];
my $pt2 = $array2[$i];
diag ("waiting a reference to a point in elt $i \$ref1"), return 0
unless ref $pt1 eq 'ARRAY';
my (@pt1) = @{$pt1};
diag ("waiting a reference to a point (x,y) in elt $i \$ref1"), return 0
unless scalar @pt1 == 2 and &numerical($pt1[0]) and &numerical($pt1[1]) ;
diag ("waiting a reference to a point in elt $i \$ref1"), return 0
unless ref $pt2 eq 'ARRAY';
my (@pt2) = @{$pt2};
diag ("waiting a reference to a point (x,y) in elt $i \$ref2"), return 0
unless scalar @pt2 == 2 and &numerical($pt2[0]) and &numerical($pt2[1]) ;
diag ("delta > 0.001 between x of pt$i"), return 0 if abs($pt1[0]-$pt2[0]) > 0.001;
diag ("delta > 0.001 between y of pt$i"), return 0 if abs($pt1[1]-$pt2[1]) > 0.001;
}
return 1;
}
sub similarFlatArray {
my ($ref1, $ref2, $deltaref)= @_;
diag ("waiting a reference for \$ref1"), return 0 unless ref ($ref1) eq 'ARRAY';
diag ("waiting a reference for \$ref2"), return 0 unless ref ($ref2) eq 'ARRAY';
diag ("waiting a reference for \$deltaref"), return 0 unless ref ($deltaref) eq 'ARRAY';
my @array1 = @{$ref1};
my @array2 = @{$ref2};
my @deltaarray = @{$deltaref};
diag ("arrays for \$ref1 and \$ref2 and \$deltaref are not of same length,".$#array1.",".$#array2.",".$#deltaarray), return 0
unless ($#array1 == $#array2) and ($#array2 == $#deltaarray);
for my $i (0.. $#array1) {
my $a = $array1[$i];
my $b = $array2[$i];
my $delta = $deltaarray[$i];
diag ("waiting a numeric value for elt $i of \$ref1"), return 0
unless &numerical($a);
diag ("waiting a numeric value for elt $i of \$ref2"), return 0
unless &numerical($b);
diag ("waiting a numeric value for elt $i of \$deltaref"), return 0
unless &numerical($delta);
diag ("delta > $delta between elt $i of \$ref1 ($a) and \$ref2 ($b)"), return 0
if (abs($a-$b) > $delta) ;
}
return 1;
}
sub numerical {
my ($v) = @_;
return 0 unless defined $v;
### this really works!!
return $v eq $v*1;
}
diag("############## transformations test");
|
