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Implement modifier volumes and port _merge_loops() to XS

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This commit is contained in:
Alessandro Ranellucci 2014-01-07 15:40:38 +01:00
parent b17d06f9d1
commit c8a48b4527
10 changed files with 195 additions and 109 deletions
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104
lib/Slic3r/Print/Object.pm
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@ -178,35 +178,57 @@ sub slice {
$layer->region($_) for 0 .. ($regions_count-1);
}
# process facets
# get array of Z coordinates for slicing
my @z = map $_->slice_z, @{$self->layers};
# slice all non-modifier volumes
for my $region_id (0..$#{$self->region_volumes}) {
next if !defined $self->region_volumes->[$region_id];
# compose mesh
my $mesh;
foreach my $volume_id (@{$self->region_volumes->[$region_id]}) {
if (defined $mesh) {
$mesh->merge($self->model_object->volumes->[$volume_id]->mesh);
} else {
$mesh = $self->model_object->volumes->[$volume_id]->mesh->clone;
my $expolygons_by_layer = $self->_slice_region($region_id, \@z, 0);
for my $layer_id (0..$#$expolygons_by_layer) {
my $layerm = $self->layers->[$layer_id]->regions->[$region_id];
$layerm->slices->clear;
foreach my $expolygon (@{ $expolygons_by_layer->[$layer_id] }) {
$layerm->slices->append(Slic3r::Surface->new(
expolygon => $expolygon,
surface_type => S_TYPE_INTERNAL,
));
}
}
# transform mesh
# we ignore the per-instance transformations currently and only
# consider the first one
$self->model_object->instances->[0]->transform_mesh($mesh, 1);
# align mesh to Z = 0 and apply XY shift
$mesh->translate((map unscale(-$_), @{$self->_copies_shift}), -$self->model_object->bounding_box->z_min);
{
my $loops = $mesh->slice([ map $_->slice_z, @{$self->layers} ]);
for my $layer_id (0..$#$loops) {
my $layerm = $self->layers->[$layer_id]->regions->[$region_id];
$layerm->make_surfaces($loops->[$layer_id]);
}
# then slice all modifier volumes
if (@{$self->region_volumes} > 1) {
for my $region_id (0..$#{$self->region_volumes}) {
my $expolygons_by_layer = $self->_slice_region($region_id, \@z, 1);
# loop through the other regions and 'steal' the slices belonging to this one
for my $other_region_id (0..$#{$self->region_volumes}) {
next if $other_region_id == $region_id;
for my $layer_id (0..$#$expolygons_by_layer) {
my $layerm = $self->layers->[$layer_id]->regions->[$region_id];
my $other_layerm = $self->layers->[$layer_id]->regions->[$other_region_id];
my $other_slices = [ map $_->p, @{$other_layerm->slices} ]; # Polygons
my $my_parts = intersection_ex(
$other_slices,
[ map @$_, @{ $expolygons_by_layer->[$layer_id] } ],
);
next if !@$my_parts;
# append new parts to our region
foreach my $expolygon (@$my_parts) {
$layerm->slices->append(Slic3r::Surface->new(
expolygon => $expolygon,
surface_type => S_TYPE_INTERNAL,
));
}
# remove such parts from original region
$other_layerm->slices->clear;
$other_layerm->append($_) for @{ diff($other_slices, $my_parts) };
}
}
# TODO: read slicing_errors
}
}
@ -285,6 +307,38 @@ sub slice {
}
}
sub _slice_region {
my ($self, $region_id, $z, $modifier) = @_;
return [] if !defined $self->region_volumes->[$region_id];
# compose mesh
my $mesh;
foreach my $volume_id (@{$self->region_volumes->[$region_id]}) {
my $volume = $self->model_object->volumes->[$volume_id];
next if $volume->modifier && !$modifier;
next if !$volume->modifier && $modifier;
if (defined $mesh) {
$mesh->merge($volume->mesh);
} else {
$mesh = $volume->mesh->clone;
}
}
next if !defined $mesh;
# transform mesh
# we ignore the per-instance transformations currently and only
# consider the first one
$self->model_object->instances->[0]->transform_mesh($mesh, 1);
# align mesh to Z = 0 and apply XY shift
$mesh->translate((map unscale(-$_), @{$self->_copies_shift}), -$self->model_object->bounding_box->z_min);
# perform actual slicing
return $mesh->slice($z);
}
sub make_perimeters {
my $self = shift;