3DPrinting/PrusaSlicer-NonPlainar
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Print solid infill without cutting an internal surface under small regions such as pillars. #39

Browse Source
This commit is contained in:
Alessandro Ranellucci 2011-11-16 16:35:20 +01:00
parent 47c0da8110
commit 8aca717209
4 changed files with 24 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
lib/Slic3r/ExPolygon.pm
View File

@ -51,9 +51,15 @@ sub offset {
$miterLimit ||= 2;
my $offsets = Math::Clipper::offset($self, $distance, $scale, $joinType, $miterLimit);
return @$offsets;
}
sub offset_ex {
my $self = shift;
my @offsets = $self->offset(@_);
# apply holes to the right contours
return @{ union_ex($offsets) };
return @{ union_ex(\@offsets) };
}
sub encloses_point {

4
lib/Slic3r/Perimeter.pm
View File

@ -42,7 +42,7 @@ sub make_perimeter {
push @perimeters, [];
for (my $loop = 0; $loop < $Slic3r::perimeter_offsets; $loop++) {
# offsetting a polygon can result in one or many offset polygons
@last_offsets = map $_->offset(-$distance), @last_offsets;
@last_offsets = map $_->offset_ex(-$distance), @last_offsets;
push @{ $perimeters[-1] }, [@last_offsets];
# offset distance for inner loops
@ -54,7 +54,7 @@ sub make_perimeter {
$distance -= $Slic3r::flow_width * $Slic3r::perimeter_infill_overlap_ratio / $Slic3r::resolution;
my @fill_surfaces = map Slic3r::Surface->cast_from_expolygon
($_, surface_type => $surface->surface_type),
map $_->offset(-$distance), @last_offsets;
map $_->offset_ex(-$distance), @last_offsets;
push @{ $layer->fill_surfaces }, [@fill_surfaces] if @fill_surfaces;
}

5
lib/Slic3r/Polygon.pm
View File

@ -65,4 +65,9 @@ sub rotate {
@$self = rotate_points($angle, $center, @$self);
}
sub area {
my $self = shift;
return Slic3r::Geometry::Clipper::area($self);
}
1;

14
lib/Slic3r/Print.pm
View File

@ -2,7 +2,7 @@ package Slic3r::Print;
use Moo;
use Math::ConvexHull 1.0.4 qw(convex_hull);
use Slic3r::Geometry qw(X Y);
use Slic3r::Geometry qw(X Y PI);
use Slic3r::Geometry::Clipper qw(explode_expolygons safety_offset diff_ex intersection_ex
offset JT_ROUND JT_MITER);
use XXX;
@ -101,8 +101,14 @@ sub detect_surfaces_type {
# find top surfaces (difference between current surfaces
# of current layer and upper one)
if ($upper_layer) {
# offset upper layer surfaces by extrusion_width * perimeters
@top = $surface_difference->($layer->surfaces, $upper_layer->surfaces, 'top');
# only consider those upper surfaces that are not small
# (if they're too small, the interface with them can be treated
# like a continuous solid surface instead of cutting a little
# internal surface in it)
my $min_area = ((7 * $Slic3r::flow_width / $Slic3r::resolution)**2) * PI;
my $upper_surfaces = [ grep { $_->expolygon->contour->area > $min_area } @{$upper_layer->surfaces} ];
@top = $surface_difference->($layer->surfaces, $upper_surfaces, 'top');
} else {
# if no upper layer, all surfaces of this one are solid
@top = @{$layer->surfaces};
@ -195,7 +201,7 @@ sub discover_horizontal_shells {
Slic3r::debugf " looking for neighbors on layer %d...\n", $n;
foreach my $surfaces (@{$self->layers->[$n]->fill_surfaces}) {
my $neighbor_polygons = [ map $_->p, grep $_->surface_type =~ /internal/, @$surfaces ];
my $neighbor_polygons = [ map $_->p, grep $_->surface_type eq 'internal', @$surfaces ];
# find intersection between @surfaces and current layer's surfaces
# intersections have contours and holes