3DPrinting/PrusaSlicer-NonPlainar
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Some compatibility bugs. Slic3r will still fail hard with non-manifold objects

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This commit is contained in:
Alessandro Ranellucci 2011-10-11 15:51:08 +02:00
parent bca3abb755
commit f01ddae974
4 changed files with 32 additions and 23 deletions
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2
lib/Slic3r/Geometry.pm
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@ -201,7 +201,7 @@ sub polygon_lines {
sub nearest_point {
my ($point, $points) = @_;
my ($nearest_point, $distance);
my ($nearest_point, $distance) = ();
foreach my $p (@$points) {
my $d = distance_between_points($point, $p);
if (!defined $distance || $d < $distance) {

40
lib/Slic3r/Layer.pm
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@ -3,7 +3,8 @@ use Moo;
use Math::Clipper ':all';
use Math::ConvexHull qw(convex_hull);
use Slic3r::Geometry qw(polygon_lines points_coincide angle3points polyline_lines);
use Slic3r::Geometry qw(polygon_lines points_coincide angle3points polyline_lines nearest_point
line_length);
use Slic3r::Geometry::Clipper qw(union_ex);
use XXX;
@ -135,6 +136,7 @@ sub make_surfaces {
my @lines = ();
push @lines, map $_->p, @{$self->lines};
#@lines = grep line_length($_) > xx, @lines;
#use Slic3r::SVG;
#Slic3r::SVG::output(undef, "lines.svg",
@ -144,10 +146,13 @@ sub make_surfaces {
my $get_point_id = sub { sprintf "%.0f,%.0f", @{$_[0]} };
my (%pointmap) = ();
my (%pointmap, @pointmap_keys) = ();
foreach my $line (@lines) {
my $point_id = $get_point_id->($line->[A]);
$pointmap{$point_id} ||= [];
if (!exists $pointmap{$point_id}) {
$pointmap{$point_id} = [];
push @pointmap_keys, $line->[A];
}
push @{ $pointmap{$point_id} }, $line;
}
@ -163,16 +168,25 @@ sub make_surfaces {
# shouldn't we find the point, let's try with a slower algorithm
# as approximation may make the coordinates differ
if (!$next_lines) {
local $Slic3r::Geometry::epsilon = 1;
for (keys %pointmap) {
$next_lines = $pointmap{$_} if points_coincide($points[-1], [ split /,/, $_ ]);
last if $next_lines;
my $nearest_point = nearest_point($points[-1], \@pointmap_keys);
#printf " we have a nearest point: %f,%f (%s)\n", @$nearest_point, $get_point_id->($nearest_point);
if ($nearest_point) {
local $Slic3r::Geometry::epsilon = 1000000;
$next_lines = $pointmap{$get_point_id->($nearest_point)}
if points_coincide($points[-1], $nearest_point);
}
}
#Slic3r::SVG::output(undef, "lines.svg",
# lines => [ map $_->p, grep !$_->isa('Slic3r::Line::FacetEdge'), @{$self->lines} ],
# red_lines => [ map $_->p, grep $_->isa('Slic3r::Line::FacetEdge'), @{$self->lines} ],
# points => [ $points[-1] ],
# no_arrows => 1,
#) if !$next_lines;
$next_lines
or die sprintf "No lines start at point %s. This shouldn't happen",
$get_point_id->($points[-1]);
or die sprintf("No lines start at point %s. This shouldn't happen", $get_point_id->($points[-1]));
last CYCLE if !@$next_lines;
my @ordered_next_lines = sort
@ -210,17 +224,11 @@ sub make_surfaces {
push @polylines, [@points];
}
#use Slic3r::SVG;
#Slic3r::SVG::output(undef, "polylines.svg",
# polylines => [ @polylines ],
#);
#exit if $self->id == 30;
{
my $expolygons = union_ex([ @polylines ]);
Slic3r::debugf " %d surface(s) detected from %d polylines\n",
scalar(@$expolygons), scalar(@polylines);
push @{$self->surfaces}, map Slic3r::Surface->cast_from_expolygon($_, surface_type => 'internal'), @$expolygons;
}

9
lib/Slic3r/STL.pm
View File

@ -157,7 +157,7 @@ sub intersect_facet {
[ [$a->[X], $a->[Y]], [$b->[X], $b->[Y]] ],
edge_type => $edge_type,
);
#print "Horizontal edge!\n";
#print "Horizontal edge at $z!\n";
} elsif (($a->[Z] < $z && $b->[Z] > $z) || ($b->[Z] < $z && $a->[Z] > $z)) {
# edge intersects the current layer; calculate intersection
@ -165,14 +165,14 @@ sub intersect_facet {
$b->[X] + ($a->[X] - $b->[X]) * ($z - $b->[Z]) / ($a->[Z] - $b->[Z]),
$b->[Y] + ($a->[Y] - $b->[Y]) * ($z - $b->[Z]) / ($a->[Z] - $b->[Z]),
];
#print "Intersects!\n";
#print "Intersects at $z!\n";
} elsif ($a->[Z] == $z) {
#print "A point on plane!\n";
#print "A point on plane $z!\n";
push @intersection_points, [ $a->[X], $a->[Y] ];
} elsif ($b->[Z] == $z) {
#print "B point on plane!\n";
#print "B point on plane $z!\n";
push @intersection_points, [ $b->[X], $b->[Y] ];
}
}
@ -194,6 +194,7 @@ sub intersect_facet {
# connect points:
push @lines, Slic3r::Line->cast([ @intersection_points ]);
#printf " intersection points = %f,%f - %f,%f\n", map @$_, @intersection_points;
}
return @lines;

4
lib/Slic3r/SVG.pm
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@ -58,7 +58,7 @@ sub output {
);
$g->$method(
%$path,
'marker-end' => "url(#endArrow)",
'marker-end' => $things{no_arrows} ? "" : "url(#endArrow)",
);
}
}
@ -101,7 +101,7 @@ sub output {
style => {
'stroke' => $colour || 'black',
},
'marker-end' => "url(#endArrow)",
'marker-end' => $things{no_arrows} ? "" : "url(#endArrow)",
);
}
}