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New algorithm for overhang detection

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This commit is contained in:
Alessandro Ranellucci 2013-06-20 20:11:46 +02:00
parent 015580629b
commit 7e875393f5
3 changed files with 65 additions and 42 deletions
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68
lib/Slic3r/ExtrusionPath.pm
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@ -60,6 +60,17 @@ sub pack {
# no-op, this allows to use both packed and non-packed objects in Collections
sub unpack { $_[0] }
sub clone {
my $self = shift;
my %p = @_;
$p{polyline} ||= $self->polyline->clone;
return (ref $self)->new(
(map { $_ => $self->$_ } qw(polyline height flow_spacing role)),
%p,
);
}
sub clip_with_polygon {
my $self = shift;
my ($polygon) = @_;
@ -71,16 +82,24 @@ sub clip_with_expolygon {
my $self = shift;
my ($expolygon) = @_;
my @paths = ();
foreach my $polyline ($self->polyline->clip_with_expolygon($expolygon)) {
push @paths, (ref $self)->new(
polyline => $polyline,
height => $self->height,
flow_spacing => $self->flow_spacing,
role => $self->role,
);
}
return @paths;
return map $self->clone(polyline => $_),
$self->polyline->clip_with_expolygon($expolygon);
}
sub intersect_expolygons {
my $self = shift;
my ($expolygons) = @_;
return map $self->clone(polyline => Slic3r::Polyline->new(@$_)),
@{Boost::Geometry::Utils::multi_polygon_multi_linestring_intersection($expolygons, [$self->polyline])};
}
sub subtract_expolygons {
my $self = shift;
my ($expolygons) = @_;
return map $self->clone(polyline => Slic3r::Polyline->new(@$_)),
@{Boost::Geometry::Utils::multi_linestring_multi_polygon_difference([$self->polyline], $expolygons)};
}
sub simplify {
@ -141,22 +160,15 @@ sub split_at_acute_angles {
# if the angle between $p[-2], $p[-1], $p3 is too acute
# then consider $p3 only as a starting point of a new
# path and stop the current one as it is
push @paths, (ref $self)->new(
polyline => Slic3r::Polyline->new(\@p),
role => $self->role,
height => $self->height,
);
push @paths, $self->clone(polyline => Slic3r::Polyline->new(\@p));
@p = ($p3);
push @p, grep $_, shift @points or last;
} else {
push @p, $p3;
}
}
push @paths, (ref $self)->new(
polyline => Slic3r::Polyline->new(\@p),
role => $self->role,
height => $self->height,
) if @p > 1;
push @paths, $self->clone(polyline => Slic3r::Polyline->new(\@p))
if @p > 1;
return @paths;
}
@ -251,12 +263,8 @@ sub detect_arcs {
);
# points 0..$i form a linear path
push @paths, (ref $self)->new(
polyline => Slic3r::Polyline->new(@points[0..$i]),
role => $self->role,
flow_spacing => $self->flow_spacing,
height => $self->height,
) if $i > 0;
push @paths, $self->clone(polyline => Slic3r::Polyline->new(@points[0..$i]))
if $i > 0;
# add our arc
push @paths, $arc;
@ -271,12 +279,8 @@ sub detect_arcs {
}
# remaining points form a linear path
push @paths, (ref $self)->new(
polyline => Slic3r::Polyline->new(\@points),
role => $self->role,
flow_spacing => $self->flow_spacing,
height => $self->height,
) if @points > 1;
push @paths, $self->clone(polyline => Slic3r::Polyline->new(\@points))
if @points > 1;
return @paths;
}