/
Layer.pm
121 lines (97 loc) · 3.91 KB
/
Layer.pm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
package Slic3r::Layer;
use Moo;
use List::Util qw(first);
use Slic3r::Geometry qw(scale);
use Slic3r::Geometry::Clipper qw(union_ex);
has 'id' => (is => 'rw', required => 1, trigger => 1); # sequential number of layer, 0-based
has 'object' => (is => 'ro', weak_ref => 1, required => 1);
has 'regions' => (is => 'ro', default => sub { [] });
has 'slicing_errors' => (is => 'rw');
has 'slice_z' => (is => 'lazy');
has 'print_z' => (is => 'lazy');
has 'height' => (is => 'lazy');
has 'flow' => (is => 'lazy');
# collection of expolygons generated by slicing the original geometry;
# also known as 'islands' (all regions are merged here)
has 'slices' => (is => 'rw');
# ordered collection of extrusion paths to fill surfaces for support material
has 'support_islands' => (is => 'rw');
has 'support_fills' => (is => 'rw');
has 'support_interface_fills' => (is => 'rw');
sub _trigger_id {
my $self = shift;
$_->_trigger_layer for @{$self->regions || []};
}
# Z used for slicing in scaled coordinates
sub _build_slice_z {
my $self = shift;
if ($Slic3r::Config->raft_layers == 0) {
if ($self->id == 0) {
return scale $Slic3r::Config->get_value('first_layer_height') / 2;
}
return scale($Slic3r::Config->get_value('first_layer_height') + ($self->id-1 + 0.5) * $Slic3r::Config->layer_height);
} else {
return -1 if $self->id < $Slic3r::Config->raft_layers;
my $object_layer_id = $self->id - $Slic3r::Config->raft_layers;
return scale ($object_layer_id + 0.5) * $Slic3r::Config->layer_height;
}
}
# Z used for printing in scaled coordinates
sub _build_print_z {
my $self = shift;
return ($Slic3r::Config->get_value('first_layer_height') + ($self->id * $Slic3r::Config->layer_height)) / &Slic3r::SCALING_FACTOR;
}
# layer height in unscaled coordinates
sub _build_height {
my $self = shift;
return $self->id == 0 ? $Slic3r::Config->get_value('first_layer_height') : $Slic3r::Config->layer_height;
}
sub _build_flow { $Slic3r::flow }
# layer height of interface paths in unscaled coordinates
sub support_material_interface_height {
my $self = shift;
return $self->height if $self->id == 0;
# this is not very correct because:
# - we should sum our height with the actual upper layers height (which might be different)
# - we should use the actual flow of the upper layer bridges, not the default one
# ...but we're close enough for now
return 2*$self->height - $self->flow->nozzle_diameter;
}
# Z used for printing support material interface in scaled coordinates
sub support_material_interface_z {
my $self = shift;
return $self->print_z - ($self->height - $self->support_material_interface_height) / &Slic3r::SCALING_FACTOR;
}
sub region {
my $self = shift;
my ($region_id) = @_;
for (my $i = @{$self->regions}; $i <= $region_id; $i++) {
$self->regions->[$i] //= Slic3r::Layer::Region->new(
layer => $self,
region => $self->object->print->regions->[$i],
);
}
return $self->regions->[$region_id];
}
# merge all regions' slices to get islands
sub make_slices {
my $self = shift;
# optimization for single-region layers
my @regions_with_slices = grep { @{$_->slices} } @{$self->regions};
if (@regions_with_slices == 1) {
$self->slices([ map $_->expolygon, @{$regions_with_slices[0]->slices} ]);
return;
}
$self->slices(union_ex([ map $_->p, map @{$_->slices}, @{$self->regions} ]));
}
sub make_perimeters {
my $self = shift;
Slic3r::debugf "Making perimeters for layer %d\n", $self->id;
$_->make_perimeters for @{$self->regions};
}
sub support_islands_enclose_line {
my $self = shift;
my ($line) = @_;
return (first { $_->encloses_line($line) } @{$self->support_islands}) ? 1 : 0;
}
1;