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Improvements to avoid numerical issues in bridge detection and bridge exclusion

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This commit is contained in:
Alessandro Ranellucci 2014-04-30 15:16:15 +02:00
parent 581376bf75
commit 010b71e9d4
3 changed files with 19 additions and 16 deletions
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15
lib/Slic3r/Print/SupportMaterial.pm
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@ -165,6 +165,8 @@ sub contact_area {
my $bridged_perimeters; # Polygons
{
my $bridge_flow = $layerm->flow(FLOW_ROLE_PERIMETER, 1);
my $nozzle_diameter = $self->print_config->get_at('nozzle_diameter', $layerm->region->config->perimeter_extruder-1);
my $lower_grown_slices = offset([ map @$_, @{$lower_layer->slices} ], +scale($nozzle_diameter/2));
@ -192,9 +194,16 @@ sub contact_area {
$layer->slices->contains_point($_->first_point) && $layer->slices->contains_point($_->last_point)
} @overhang_perimeters;
$bridged_perimeters = union([
map @{$_->grow($fw/2)}, @overhang_perimeters
]);
# convert bridging polylines into polygons by inflating them with their thickness
{
# since we're dealing with bridges, we can't assume width is larger than spacing,
# so we take the largest value and also apply safety offset to be ensure no gaps
# are left in between
my $w = max($bridge_flow->scaled_width, $bridge_flow->scaled_spacing);
$bridged_perimeters = union([
map @{$_->grow($w/2 + 10)}, @overhang_perimeters
]);
}
}
if (1) {