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Corrections to math. Threads are not always rectangles with semicircles. Better calculation of overlap.

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This commit is contained in:
Alessandro Ranellucci 2011-12-17 19:52:34 +01:00
parent cd0fd80a69
commit 1e6ecd9eab
13 changed files with 62 additions and 41 deletions
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15
lib/Slic3r/Layer.pm
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@ -124,14 +124,7 @@ sub make_surfaces {
# the contours must be offsetted by half extrusion width inwards
{
my $distance = $Slic3r::flow_width / 2;
if ($Slic3r::overlap_factor) {
# our overlap is done by increasing the flow; however external perimeters will grow
# outwards, so we offset by the correct amount
$distance = ($Slic3r::flow_width + $Slic3r::overlap_factor * $Slic3r::layer_height * (1 - PI/4)) / 2;
}
$distance = scale $distance;
my $distance = scale $Slic3r::flow_width / 2;
my @surfaces = @{$self->slices};
@{$self->slices} = ();
foreach my $surface (@surfaces) {
@ -156,7 +149,7 @@ sub prepare_fill_surfaces {
# merge too small internal surfaces with their surrounding tops
# (if they're too small, they can be treated as solid)
{
my $min_area = ((7 * $Slic3r::flow_width / $Slic3r::resolution)**2) * PI;
my $min_area = ((7 * $Slic3r::flow_spacing / $Slic3r::resolution)**2) * PI;
my $small_internal = [
grep { $_->expolygon->contour->area <= $min_area }
grep { $_->surface_type eq 'internal' }
@ -189,7 +182,7 @@ sub prepare_fill_surfaces {
sub remove_small_surfaces {
my $self = shift;
my $distance = scale $Slic3r::flow_width / 2;
my $distance = scale $Slic3r::flow_spacing / 2;
my @surfaces = @{$self->fill_surfaces};
@{$self->fill_surfaces} = ();
@ -257,7 +250,7 @@ sub process_bridges {
# offset the contour and intersect it with the internal surfaces to discover
# which of them has contact with our bridge
my @supporting_surfaces = ();
my ($contour_offset) = $expolygon->contour->offset(scale $Slic3r::flow_width * sqrt(2));
my ($contour_offset) = $expolygon->contour->offset(scale $Slic3r::flow_spacing * sqrt(2));
foreach my $internal_surface (@internal_surfaces) {
my $intersection = intersection_ex([$contour_offset], [$internal_surface->contour->p]);
if (@$intersection) {