3D-printing/OrcaSlicer
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Lots of changes and refactoring after testing with hollow objects

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This commit is contained in:
Alessandro Ranellucci 2011-09-18 19:28:12 +02:00
parent 26b05ab155
commit 18c7aef1a7
15 changed files with 716 additions and 494 deletions
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18
lib/Slic3r/STL.pm
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@ -38,7 +38,7 @@ sub parse_file {
# calculate the displacements needed to
# have lowest value for each axis at coordinate 0
my @shift = map 0 - $extents[$_][MIN], X,Y,Z;
my @shift = map -$extents[$_][MIN], X,Y,Z;
# process facets
foreach my $facet ($stl->part->facets) {
@ -55,11 +55,8 @@ sub parse_file {
print "\n==> PROCESSING SLICES:\n";
foreach my $layer (@{ $print->layers }) {
printf "Processing layer %d:\n", $layer->id;
printf "\nProcessing layer %d:\n", $layer->id;
# merge parallel and continuous lines
$layer->merge_continuous_lines;
# build polylines of lines which do not already belong to a surface
my $polylines = $layer->make_polylines;
@ -76,7 +73,7 @@ sub parse_file {
sub _facet {
my $self = shift;
my ($print, $normal, @vertices) = @_;
Slic3r::debugf "\n==> FACET (%s):\n", join('-', map join(',', @$_), @vertices)
Slic3r::debugf "\n==> FACET (%f,%f,%f - %f,%f,%f - %f,%f,%f):\n", map @$_, @vertices
if $Slic3r::debug;
# find the vertical extents of the facet
@ -105,8 +102,10 @@ sub _facet {
- ($vertices[1]->[X] - $vertices[0]->[X]) * ($vertices[2]->[Y] - $vertices[0]->[Y]);
# defensive programming and/or input check
if (($normal->[Z] > 0 && $clockwise < 0) || ($normal->[Z] < 0 && $clockwise > 0)) {
die "STL normal and right-hand rule computation differ!\n";
if (($normal->[Z] > 0 && $clockwise > 0) || ($normal->[Z] < 0 && $clockwise < 0)) {
YYY $normal;
die sprintf "STL normal (%.0f) and right-hand rule computation (%s) differ!\n",
$normal->[Z], $clockwise > 0 ? 'clockwise' : 'counter-clockwise';
}
if ($layer->id == 0 && $clockwise < 0) {
die "Right-hand rule gives bad result for facets on base layer!\n";
@ -138,7 +137,7 @@ sub _facet {
} elsif (($a->[Z] < $z && $b->[Z] > $z) || ($b->[Z] < $z && $a->[Z] > $z)) {
# edge intersects the current layer; calculate intersection
push @intersection_points, $layer->add_point([
push @intersection_points, Slic3r::Point->cast([
$b->[X] + ($a->[X] - $b->[X]) * ($z - $b->[Z]) / ($a->[Z] - $b->[Z]),
$b->[Y] + ($a->[Y] - $b->[Y]) * ($z - $b->[Z]) / ($a->[Z] - $b->[Z]),
]);
@ -152,7 +151,6 @@ sub _facet {
# check whether the two points coincide due to resolution rounding
if ($intersection_points[0]->coincides_with($intersection_points[1])) {
Slic3r::debugf "Points coincide; removing\n";
$layer->remove_point($_) for @intersection_points;
next;
}