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Set h to 0 when C is very small
[convert-color-husl.git]
/
lib
/
Convert
/
Color
/
LCh.pm
diff --git
a/lib/Convert/Color/LCh.pm
b/lib/Convert/Color/LCh.pm
index 83cf1bf6fa0945ec1fb50385cd05c08b279821cd..3632729c461f14923bc7d12826f4d5fa2c624f05 100644
(file)
--- a/
lib/Convert/Color/LCh.pm
+++ b/
lib/Convert/Color/LCh.pm
@@
-37,6
+37,7
@@
sub new_from_luv {
my ($class, $luv) = @_;
my ($l, $u, $v) = @$luv;
my $c = sqrt $u * $u + $v * $v;
+ return $class->new($l, $c, 0) if $c < 0.00000001;
my $hrad = atan2 $v, $u;
my $h = $hrad * 180 / pi;
$h += 360 if $h < 0;
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