3DPrinting/PrusaSlicer-NonPlainar
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Bugfix: seam_position = aligned/nearest didn't work correctly for hi-res models. #2156

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Conflicts:

	lib/Slic3r/GCode.pm
This commit is contained in:
Alessandro Ranellucci 2014-07-25 12:04:33 +02:00
parent 06d700989f
commit d68192749f
2 changed files with 33 additions and 18 deletions
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40
lib/Slic3r/GCode.pm
View File

@ -158,24 +158,40 @@ sub extrude_loop {
if ($self->config->spiral_vase) {
$loop->split_at($last_pos);
} elsif ($self->config->seam_position eq 'nearest' || $self->config->seam_position eq 'aligned') {
# simplify polygon in order to skip false positives in concave/convex detection
my $polygon = $loop->polygon;
my @candidates = @{$polygon->concave_points(PI*4/3)};
@candidates = @{$polygon->convex_points(PI*2/3)} if !@candidates;
@candidates = @{$polygon} if !@candidates;
my @simplified = @{$polygon->simplify(scale $self->extruder->nozzle_diameter/2)};
my @non_overhang = grep !$loop->has_overhang_point($_), @candidates;
@candidates = @non_overhang if @non_overhang;
# concave vertices have priority
my @candidates = map @{$_->concave_points(PI*4/3)}, @simplified;
if ($self->config->seam_position eq 'nearest') {
$loop->split_at_vertex($last_pos->nearest_point(\@candidates));
} elsif ($self->config->seam_position eq 'aligned') {
my $obj_ptr = $self->layer->object->ptr;
if (defined $self->layer && defined $self->_seam_position->{$obj_ptr}) {
# if no concave points were found, look for convex vertices
@candidates = map @{$_->convex_points(PI*2/3)}, @simplified if !@candidates;
# retrieve the last start position for this object
my $obj_ptr;
if (defined $self->layer) {
$obj_ptr = $self->layer->object->ptr;
if (defined $self->_seam_position->{$self->layer->object}) {
$last_pos = $self->_seam_position->{$obj_ptr};
}
my $point = $self->_seam_position->{$obj_ptr} = $last_pos->nearest_point(\@candidates);
$loop->split_at_vertex($point);
}
my $point;
if ($self->config->seam_position eq 'nearest') {
@candidates = @$polygon if !@candidates;
$point = $last_pos->nearest_point(\@candidates);
$loop->split_at_vertex($point);
} elsif (@candidates) {
my @non_overhang = grep !$loop->has_overhang_point($_), @candidates;
@candidates = @non_overhang if @non_overhang;
$point = $last_pos->nearest_point(\@candidates);
$loop->split_at_vertex($point);
} else {
$point = $last_pos->projection_onto_polygon($polygon);
$loop->split_at($point);
}
$self->_seam_position->{$obj_ptr} = $point;
} elsif ($self->config->seam_position eq 'random') {
if ($loop->role == EXTRL_ROLE_CONTOUR_INTERNAL_PERIMETER) {
my $polygon = $loop->polygon;

9
lib/Slic3r/Polygon.pm
View File

@ -7,7 +7,7 @@ use parent 'Slic3r::Polyline';
use Slic3r::Geometry qw(
polygon_segment_having_point
PI X1 X2 Y1 Y2 epsilon);
PI X1 X2 Y1 Y2 epsilon scaled_epsilon);
use Slic3r::Geometry::Clipper qw(intersection_pl);
sub wkt {
@ -54,18 +54,18 @@ sub concave_points {
# but angle3points measures CCW angle, so we calculate the complementary angle
my $ccw_angle = 2*PI-$angle;
my @concave = ();
my @points = @$self;
my @points_pp = @{$self->pp};
my @concave = ();
for my $i (-1 .. ($#points-1)) {
next if $points[$i-1]->coincides_with_epsilon($points[$i]) || $points[$i+1]->coincides_with_epsilon($points[$i]);
# angle is measured in ccw orientation
my $vertex_angle = Slic3r::Geometry::angle3points(@points_pp[$i, $i-1, $i+1]);
if ($vertex_angle <= $ccw_angle) {
push @concave, $points[$i];
}
}
return [@concave];
}
@ -78,12 +78,11 @@ sub convex_points {
# but angle3points measures CCW angle, so we calculate the complementary angle
my $ccw_angle = 2*PI-$angle;
my @convex = ();
my @points = @$self;
my @points_pp = @{$self->pp};
my @convex = ();
for my $i (-1 .. ($#points-1)) {
next if $points[$i-1]->coincides_with_epsilon($points[$i]) || $points[$i+1]->coincides_with_epsilon($points[$i]);
# angle is measured in ccw orientation
my $vertex_angle = Slic3r::Geometry::angle3points(@points_pp[$i, $i-1, $i+1]);
if ($vertex_angle >= $ccw_angle) {