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Merge branch 'new-extra-perimeters'

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This commit is contained in:
Alessandro Ranellucci 2013-03-11 14:24:02 +01:00
commit 0326962d11
4 changed files with 55 additions and 31 deletions
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2
lib/Slic3r/Layer/Region.pm
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@ -216,7 +216,7 @@ sub make_perimeters {
my @gaps = (); my @gaps = ();
# generate perimeters inwards (loop 0 is the external one) # generate perimeters inwards (loop 0 is the external one)
my $loop_number = $Slic3r::Config->perimeters + ($surface->additional_inner_perimeters || 0); my $loop_number = $Slic3r::Config->perimeters + ($surface->extra_perimeters || 0);
push @perimeters, [] if $loop_number > 0; push @perimeters, [] if $loop_number > 0;
# do one more loop (<= instead of <) so that we can detect gaps even after the desired # do one more loop (<= instead of <) so that we can detect gaps even after the desired

57
lib/Slic3r/Print/Object.pm
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@ -4,7 +4,7 @@ use Moo;
use List::Util qw(min sum first); use List::Util qw(min sum first);
use Slic3r::ExtrusionPath ':roles'; use Slic3r::ExtrusionPath ':roles';
use Slic3r::Geometry qw(Z PI scale unscale deg2rad rad2deg scaled_epsilon); use Slic3r::Geometry qw(Z PI scale unscale deg2rad rad2deg scaled_epsilon);
use Slic3r::Geometry::Clipper qw(diff_ex intersection_ex union_ex); use Slic3r::Geometry::Clipper qw(diff_ex intersection_ex union_ex offset);
use Slic3r::Surface ':types'; use Slic3r::Surface ':types';
has 'print' => (is => 'ro', weak_ref => 1, required => 1); has 'print' => (is => 'ro', weak_ref => 1, required => 1);
@ -236,40 +236,43 @@ sub make_perimeters {
my $overlap = $perimeter_spacing; # one perimeter my $overlap = $perimeter_spacing; # one perimeter
# compute the polygon used to trigger the additional perimeters: the hole represents my $diff = diff_ex(
# the required overlap, while the contour represents how different should the slices be [ offset([ map @{$_->expolygon}, @{$layerm->slices} ], -($Slic3r::Config->perimeters * $perimeter_spacing)) ],
# (thus how horizontal should the slope be) before extra perimeters are not generated, and [ offset([ map @{$_->expolygon}, @{$upper_layerm->slices} ], -$overlap) ],
# normal solid infill is used
my $upper = diff_ex(
[ map @$_, map $_->expolygon->offset_ex($overlap), @{$upper_layerm->slices} ],
[ map @$_, map $_->expolygon->offset_ex(-$overlap), @{$upper_layerm->slices} ],
); );
next if !@$upper; next if !@$diff;
# if we need more perimeters, $diff should contain a narrow region that we can collapse
$diff = diff_ex(
[ map @$_, @$diff ],
[ offset(
[ offset([ map @$_, @$diff ], -$perimeter_spacing) ],
+$perimeter_spacing
) ],
);
next if !@$diff;
# diff contains the collapsed area
foreach my $slice (@{$layerm->slices}) { foreach my $slice (@{$layerm->slices}) {
my $hypothetical_perimeter_num = $Slic3r::Config->perimeters + 1; my $extra_perimeters = 0;
CYCLE: while (1) { CYCLE: while (1) {
# compute polygons representing the thickness of the hypotetical new internal perimeter # compute polygons representing the thickness of the hypotetical new internal perimeter
# of our slice # of our slice
my $hypothetical_perimeter; $extra_perimeters++;
{ my $hypothetical_perimeter = diff_ex(
my $outer = [ map @$_, $slice->expolygon->offset_ex(- ($hypothetical_perimeter_num-1) * $perimeter_spacing - scaled_epsilon) ]; [ offset($slice->expolygon, -($perimeter_spacing * ($Slic3r::Config->perimeters + $extra_perimeters-1))) ],
last CYCLE if !@$outer; [ offset($slice->expolygon, -($perimeter_spacing * ($Slic3r::Config->perimeters + $extra_perimeters))) ],
my $inner = [ map @$_, $slice->expolygon->offset_ex(- $hypothetical_perimeter_num * $perimeter_spacing) ]; );
last CYCLE if !@$inner; last CYCLE if !@$hypothetical_perimeter; # no extra perimeter is possible
$hypothetical_perimeter = diff_ex($outer, $inner);
}
last CYCLE if !@$hypothetical_perimeter;
# compute the area of the hypothetical perimeter # only add the perimeter if there's an intersection with the collapsed area
my $hp_area = sum(map $_->area, @$hypothetical_perimeter); my $intersection = intersection_ex(
[ map @$_, @$diff ],
# only add the perimeter if the intersection is at least 20%, otherwise we'd get no benefit [ map @$_, @$hypothetical_perimeter ],
my $intersection = intersection_ex([ map @$_, @$upper ], [ map @$_, @$hypothetical_perimeter ]); );
last CYCLE if (sum(map $_->area, @{ $intersection }) // 0) < $hp_area * 0.2; last CYCLE if !@$intersection;
Slic3r::debugf " adding one more perimeter at layer %d\n", $layer_id; Slic3r::debugf " adding one more perimeter at layer %d\n", $layer_id;
$slice->additional_inner_perimeters(($slice->additional_inner_perimeters || 0) + 1); $slice->extra_perimeters($extra_perimeters);
$hypothetical_perimeter_num++;
} }
} }
} }

21
lib/Slic3r/SVG.pm
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@ -7,6 +7,8 @@ use SVG;
use constant X => 0; use constant X => 0;
use constant Y => 1; use constant Y => 1;
our $filltype = 'evenodd';
sub factor { sub factor {
return &Slic3r::SCALING_FACTOR * 10; return &Slic3r::SCALING_FACTOR * 10;
} }
@ -36,6 +38,25 @@ sub output {
my $svg = svg(); my $svg = svg();
foreach my $type (qw(expolygons red_expolygons green_expolygons)) {
next if !$things{$type};
my ($colour) = $type =~ /^(red|green)_/;
my $g = $svg->group(
style => {
'stroke-width' => 2,
'stroke' => $colour || 'black',
'fill' => ($type !~ /polygons/ ? 'none' : ($colour || 'grey')),
'fill-type' => $filltype,
},
);
foreach my $expolygon (@{$things{$type}}) {
my $points = join ' ', map "M $_ z", map join(" ", reverse map $_->[0]*factor() . " " . $_->[1]*factor(), @$_), @$expolygon;
$g->path(
d => $points,
);
}
}
foreach my $type (qw(polygons polylines white_polygons green_polygons red_polygons red_polylines)) { foreach my $type (qw(polygons polylines white_polygons green_polygons red_polygons red_polylines)) {
if ($things{$type}) { if ($things{$type}) {
my $method = $type =~ /polygons/ ? 'polygon' : 'polyline'; my $method = $type =~ /polygons/ ? 'polygon' : 'polyline';

6
lib/Slic3r/Surface.pm
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@ -11,7 +11,7 @@ use constant S_EXPOLYGON => 0;
use constant S_SURFACE_TYPE => 1; use constant S_SURFACE_TYPE => 1;
use constant S_DEPTH_LAYERS => 2; use constant S_DEPTH_LAYERS => 2;
use constant S_BRIDGE_ANGLE => 3; use constant S_BRIDGE_ANGLE => 3;
use constant S_ADDITIONAL_INNER_PERIMETERS => 4; use constant S_EXTRA_PERIMETERS => 4;
use constant S_TYPE_TOP => 0; use constant S_TYPE_TOP => 0;
use constant S_TYPE_BOTTOM => 1; use constant S_TYPE_BOTTOM => 1;
@ -24,7 +24,7 @@ sub new {
my %args = @_; my %args = @_;
my $self = [ my $self = [
map delete $args{$_}, qw(expolygon surface_type depth_layers bridge_angle additional_inner_perimeters), map delete $args{$_}, qw(expolygon surface_type depth_layers bridge_angle extra_perimeters),
]; ];
$self->[S_DEPTH_LAYERS] //= 1; #/ $self->[S_DEPTH_LAYERS] //= 1; #/
@ -36,7 +36,7 @@ sub expolygon { $_[0][S_EXPOLYGON] }
sub surface_type { $_[0][S_SURFACE_TYPE] = $_[1] if defined $_[1]; $_[0][S_SURFACE_TYPE] } sub surface_type { $_[0][S_SURFACE_TYPE] = $_[1] if defined $_[1]; $_[0][S_SURFACE_TYPE] }
sub depth_layers { $_[0][S_DEPTH_LAYERS] } # this integer represents the thickness of the surface expressed in layers sub depth_layers { $_[0][S_DEPTH_LAYERS] } # this integer represents the thickness of the surface expressed in layers
sub bridge_angle { $_[0][S_BRIDGE_ANGLE] = $_[1] if defined $_[1]; $_[0][S_BRIDGE_ANGLE] } sub bridge_angle { $_[0][S_BRIDGE_ANGLE] = $_[1] if defined $_[1]; $_[0][S_BRIDGE_ANGLE] }
sub additional_inner_perimeters { $_[0][S_ADDITIONAL_INNER_PERIMETERS] = $_[1] if defined $_[1]; $_[0][S_ADDITIONAL_INNER_PERIMETERS] } sub extra_perimeters { $_[0][S_EXTRA_PERIMETERS] = $_[1] if defined $_[1]; $_[0][S_EXTRA_PERIMETERS] }
# delegate handles # delegate handles
sub encloses_point { $_[0]->expolygon->encloses_point } sub encloses_point { $_[0]->expolygon->encloses_point }