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Recent changes made Slic3r less tolerant with dirty STL files. Now we are able again to slice Prusa parts. #16

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This commit is contained in:
Alessandro Ranellucci 2011-12-04 19:10:43 +01:00
parent eb64cc4965
commit b79ae44e3d
2 changed files with 34 additions and 22 deletions
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52
lib/Slic3r/TriangleMesh.pm
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@ -2,7 +2,7 @@ package Slic3r::TriangleMesh;
use Moo;
use Slic3r::Geometry qw(X Y Z A B PI epsilon same_point points_coincide angle3points
merge_collinear_lines nearest_point);
merge_collinear_lines nearest_point polyline_lines);
use XXX;
has 'facets' => (is => 'ro', default => sub { [] });
@ -194,28 +194,40 @@ sub make_loops {
Slic3r::debugf " %d lines out of %d were discarded and %d polylines were not closed\n",
scalar(@discarded_lines), scalar(@lines), scalar(@discarded_polylines);
print " Warning: errors while parsing this layer (dirty or non-manifold model).\n";
print " Retrying with slower algorithm.\n";
if (0) {
require "Slic3r/SVG.pm";
Slic3r::SVG::output(undef, "layer" . $self->id . "_detected.svg",
white_polygons => \@polygons,
);
Slic3r::SVG::output(undef, "layer" . $self->id . "_discarded_lines.svg",
red_lines => \@discarded_lines,
);
Slic3r::SVG::output(undef, "layer" . $self->id . "_discarded_polylines.svg",
polylines => \@discarded_polylines,
);
}
my $total_detected_length = 0;
$total_detected_length += $_->length for map $_->lines, @polygons;
my $total_discarded_length = 0;
$total_discarded_length += $_->length for map polyline_lines($_), @discarded_polylines;
$total_discarded_length += $_->length for @discarded_lines;
my $discarded_ratio = $total_discarded_length / $total_detected_length;
$sparse_lines = merge_collinear_lines($sparse_lines);
eval { $detect->(); };
warn $@ if $@;
Slic3r::debugf " length ratio of discarded lines is %f\n", $discarded_ratio;
if (@discarded_lines) {
print " Warning: even slow detection algorithm threw errors. Review the output before printing.\n";
$layer->slicing_errors(1);
if ($discarded_ratio > 0.00001) {
print " Retrying with slower algorithm.\n";
if (0) {
require "Slic3r/SVG.pm";
Slic3r::SVG::output(undef, "layer" . $layer->id . "_detected.svg",
white_polygons => \@polygons,
);
Slic3r::SVG::output(undef, "layer" . $layer->id . "_discarded_lines.svg",
red_lines => \@discarded_lines,
);
Slic3r::SVG::output(undef, "layer" . $layer->id . "_discarded_polylines.svg",
polylines => \@discarded_polylines,
);
}
$sparse_lines = merge_collinear_lines($sparse_lines);
eval { $detect->(); };
warn $@ if $@;
if (@discarded_lines) {
print " Warning: even slow detection algorithm threw errors. Review the output before printing.\n";
$layer->slicing_errors(1);
}
}
}