Vojtech likes to use Sublime on Windows to get the wheels rolling.
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bubnikv
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26 changed files with 408 additions and 864 deletions
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package Slic3r::Fill::3DHoneycomb;
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use Moo;
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extends 'Slic3r::Fill::Base';
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use POSIX qw(ceil fmod);
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use Slic3r::Geometry qw(scale scaled_epsilon);
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use Slic3r::Geometry::Clipper qw(intersection_pl);
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# require bridge flow since most of this pattern hangs in air
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sub use_bridge_flow { 1 }
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sub fill_surface {
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my ($self, $surface, %params) = @_;
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my $expolygon = $surface->expolygon;
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my $bb = $expolygon->bounding_box;
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my $size = $bb->size;
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my $distance = scale($self->spacing) / $params{density};
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# align bounding box to a multiple of our honeycomb grid module
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# (a module is 2*$distance since one $distance half-module is
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# growing while the other $distance half-module is shrinking)
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{
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my $min = $bb->min_point;
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$min->translate(
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-($bb->x_min % (2*$distance)),
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-($bb->y_min % (2*$distance)),
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);
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$bb->merge_point($min);
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}
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# generate pattern
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my @polylines = map Slic3r::Polyline->new(@$_),
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makeGrid(
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scale($self->z),
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$distance,
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ceil($size->x / $distance) + 1,
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ceil($size->y / $distance) + 1, #//
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(($self->layer_id / $surface->thickness_layers) % 2) + 1,
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);
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# move pattern in place
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$_->translate($bb->x_min, $bb->y_min) for @polylines;
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# clip pattern to boundaries
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@polylines = @{intersection_pl(\@polylines, \@$expolygon)};
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# connect lines
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unless ($params{dont_connect} || !@polylines) { # prevent calling leftmost_point() on empty collections
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my ($expolygon_off) = @{$expolygon->offset_ex(scaled_epsilon)};
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my $collection = Slic3r::Polyline::Collection->new(@polylines);
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@polylines = ();
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foreach my $polyline (@{$collection->chained_path_from($collection->leftmost_point, 0)}) {
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# try to append this polyline to previous one if any
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if (@polylines) {
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my $line = Slic3r::Line->new($polylines[-1]->last_point, $polyline->first_point);
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if ($line->length <= 1.5*$distance && $expolygon_off->contains_line($line)) {
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$polylines[-1]->append_polyline($polyline);
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next;
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}
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}
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# make a clone before $collection goes out of scope
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push @polylines, $polyline->clone;
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}
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}
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# TODO: return ExtrusionLoop objects to get better chained paths
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return @polylines;
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}
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=head1 DESCRIPTION
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Creates a contiguous sequence of points at a specified height that make
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up a horizontal slice of the edges of a space filling truncated
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octahedron tesselation. The octahedrons are oriented so that the
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square faces are in the horizontal plane with edges parallel to the X
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and Y axes.
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Credits: David Eccles (gringer).
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=head2 makeGrid(z, gridSize, gridWidth, gridHeight, curveType)
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Generate a set of curves (array of array of 2d points) that describe a
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horizontal slice of a truncated regular octahedron with a specified
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grid square size.
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=cut
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sub makeGrid {
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my ($z, $gridSize, $gridWidth, $gridHeight, $curveType) = @_;
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my $scaleFactor = $gridSize;
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my $normalisedZ = $z / $scaleFactor;
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my @points = makeNormalisedGrid($normalisedZ, $gridWidth, $gridHeight, $curveType);
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foreach my $lineRef (@points) {
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foreach my $pointRef (@$lineRef) {
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$pointRef->[0] *= $scaleFactor;
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$pointRef->[1] *= $scaleFactor;
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}
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}
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return @points;
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}
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=head1 FUNCTIONS
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=cut
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=head2 colinearPoints(offset, gridLength)
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Generate an array of points that are in the same direction as the
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basic printing line (i.e. Y points for columns, X points for rows)
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Note: a negative offset only causes a change in the perpendicular
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direction
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=cut
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sub colinearPoints {
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my ($offset, $baseLocation, $gridLength) = @_;
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my @points = ();
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push @points, $baseLocation - abs($offset/2);
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for (my $i = 0; $i < $gridLength; $i++) {
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push @points, $baseLocation + $i + abs($offset/2);
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push @points, $baseLocation + ($i+1) - abs($offset/2);
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}
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push @points, $baseLocation + $gridLength + abs($offset/2);
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return @points;
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}
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=head2 colinearPoints(offset, baseLocation, gridLength)
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Generate an array of points for the dimension that is perpendicular to
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the basic printing line (i.e. X points for columns, Y points for rows)
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=cut
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sub perpendPoints {
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my ($offset, $baseLocation, $gridLength) = @_;
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my @points = ();
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my $side = 2*(($baseLocation) % 2) - 1;
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push @points, $baseLocation - $offset/2 * $side;
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for (my $i = 0; $i < $gridLength; $i++) {
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$side = 2*(($i+$baseLocation) % 2) - 1;
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push @points, $baseLocation + $offset/2 * $side;
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push @points, $baseLocation + $offset/2 * $side;
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}
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push @points, $baseLocation - $offset/2 * $side;
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return @points;
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}
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=head2 trim(pointArrayRef, minX, minY, maxX, maxY)
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Trims an array of points to specified rectangular limits. Point
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components that are outside these limits are set to the limits.
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=cut
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sub trim {
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my ($pointArrayRef, $minX, $minY, $maxX, $maxY) = @_;
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foreach (@$pointArrayRef) {
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$_->[0] = ($_->[0] < $minX) ? $minX : (($_->[0] > $maxX) ? $maxX : $_->[0]);
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$_->[1] = ($_->[1] < $minY) ? $minY : (($_->[1] > $maxY) ? $maxY : $_->[1]);
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}
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}
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=head2 makeNormalisedGrid(z, gridWidth, gridHeight, curveType)
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Generate a set of curves (array of array of 2d points) that describe a
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horizontal slice of a truncated regular octahedron with edge length 1.
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curveType specifies which lines to print, 1 for vertical lines
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(columns), 2 for horizontal lines (rows), and 3 for both.
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=cut
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sub makeNormalisedGrid {
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my ($z, $gridWidth, $gridHeight, $curveType) = @_;
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## offset required to create a regular octagram
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my $octagramGap = 0.5;
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# sawtooth wave function for range f($z) = [-$octagramGap .. $octagramGap]
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my $a = sqrt(2); # period
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my $wave = abs(fmod($z, $a) - $a/2)/$a*4 - 1;
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my $offset = $wave * $octagramGap;
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my @points = ();
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if (($curveType & 1) != 0) {
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for (my $x = 0; $x <= $gridWidth; $x++) {
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my @xPoints = perpendPoints($offset, $x, $gridHeight);
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my @yPoints = colinearPoints($offset, 0, $gridHeight);
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# This is essentially @newPoints = zip(@xPoints, @yPoints)
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my @newPoints = map [ $xPoints[$_], $yPoints[$_] ], 0..$#xPoints;
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# trim points to grid edges
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#trim(\@newPoints, 0, 0, $gridWidth, $gridHeight);
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if ($x % 2 == 0){
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push @points, [ @newPoints ];
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} else {
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push @points, [ reverse @newPoints ];
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}
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}
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}
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if (($curveType & 2) != 0) {
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for (my $y = 0; $y <= $gridHeight; $y++) {
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my @xPoints = colinearPoints($offset, 0, $gridWidth);
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my @yPoints = perpendPoints($offset, $y, $gridWidth);
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my @newPoints = map [ $xPoints[$_], $yPoints[$_] ], 0..$#xPoints;
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# trim points to grid edges
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#trim(\@newPoints, 0, 0, $gridWidth, $gridHeight);
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if ($y % 2 == 0) {
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push @points, [ @newPoints ];
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} else {
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push @points, [ reverse @newPoints ];
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}
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}
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}
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return @points;
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}
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1;
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package Slic3r::Fill::Base;
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use Moo;
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has 'layer_id' => (is => 'rw');
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has 'z' => (is => 'rw'); # in unscaled coordinates
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has 'angle' => (is => 'rw'); # in radians, ccw, 0 = East
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has 'spacing' => (is => 'rw'); # in unscaled coordinates
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has 'loop_clipping' => (is => 'rw', default => sub { 0 }); # in scaled coordinates
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has 'bounding_box' => (is => 'ro', required => 0); # Slic3r::Geometry::BoundingBox object
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sub adjust_solid_spacing {
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my $self = shift;
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my %params = @_;
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my $number_of_lines = int($params{width} / $params{distance}) + 1;
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return $params{distance} if $number_of_lines <= 1;
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my $extra_space = $params{width} % $params{distance};
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return $params{distance} + $extra_space / ($number_of_lines - 1);
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}
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sub no_sort { 0 }
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sub use_bridge_flow { 0 }
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package Slic3r::Fill::WithDirection;
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use Moo::Role;
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use Slic3r::Geometry qw(PI rad2deg);
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sub angles () { [0, PI/2] }
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sub infill_direction {
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my $self = shift;
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my ($surface) = @_;
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if (!defined $self->angle) {
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warn "Using undefined infill angle";
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$self->angle(0);
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}
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# set infill angle
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my (@rotate);
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$rotate[0] = $self->angle;
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$rotate[1] = $self->bounding_box
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? $self->bounding_box->center
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: $surface->expolygon->bounding_box->center;
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my $shift = $rotate[1]->clone;
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if (defined $self->layer_id) {
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# alternate fill direction
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my $layer_num = $self->layer_id / $surface->thickness_layers;
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my $angle = $self->angles->[$layer_num % @{$self->angles}];
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$rotate[0] = $self->angle + $angle if $angle;
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}
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# use bridge angle
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if ($surface->bridge_angle >= 0) {
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Slic3r::debugf "Filling bridge with angle %d\n", rad2deg($surface->bridge_angle);
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$rotate[0] = $surface->bridge_angle;
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}
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$rotate[0] += PI/2;
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$shift->rotate(@rotate);
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return [\@rotate, $shift];
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}
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# this method accepts any object that implements rotate() and translate()
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sub rotate_points {
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my $self = shift;
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my ($expolygon, $rotate_vector) = @_;
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# rotate points
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my ($rotate, $shift) = @$rotate_vector;
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$rotate = [ -$rotate->[0], $rotate->[1] ];
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$expolygon->rotate(@$rotate);
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$expolygon->translate(@$shift);
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}
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sub rotate_points_back {
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my $self = shift;
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my ($paths, $rotate_vector) = @_;
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my ($rotate, $shift) = @$rotate_vector;
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$shift = [ map -$_, @$shift ];
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$_->translate(@$shift) for @$paths;
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$_->rotate(@$rotate) for @$paths;
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}
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1;
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@ -1,57 +0,0 @@
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package Slic3r::Fill::Concentric;
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use Moo;
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extends 'Slic3r::Fill::Base';
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use Slic3r::Geometry qw(scale unscale X);
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use Slic3r::Geometry::Clipper qw(offset offset2 union_pt_chained);
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sub no_sort { 1 }
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sub fill_surface {
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my $self = shift;
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my ($surface, %params) = @_;
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# no rotation is supported for this infill pattern
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my $expolygon = $surface->expolygon;
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my $bounding_box = $expolygon->bounding_box;
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my $min_spacing = scale($self->spacing);
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my $distance = $min_spacing / $params{density};
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if ($params{density} == 1 && !$params{dont_adjust}) {
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$distance = $self->adjust_solid_spacing(
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width => $bounding_box->size->[X],
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distance => $distance,
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);
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$self->spacing(unscale $distance);
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}
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my @loops = my @last = map $_->clone, @$expolygon;
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while (@last) {
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push @loops, @last = @{offset2(\@last, -($distance + 0.5*$min_spacing), +0.5*$min_spacing)};
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}
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# generate paths from the outermost to the innermost, to avoid
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# adhesion problems of the first central tiny loops
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@loops = map Slic3r::Polygon->new(@$_),
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reverse @{union_pt_chained(\@loops)};
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# split paths using a nearest neighbor search
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my @paths = ();
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my $last_pos = Slic3r::Point->new(0,0);
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foreach my $loop (@loops) {
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push @paths, $loop->split_at_index($last_pos->nearest_point_index(\@$loop));
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$last_pos = $paths[-1]->last_point;
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}
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# clip the paths to prevent the extruder from getting exactly on the first point of the loop
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$_->clip_end($self->loop_clipping) for @paths;
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@paths = grep $_->is_valid, @paths; # remove empty paths (too short, thus eaten by clipping)
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# TODO: return ExtrusionLoop objects to get better chained paths
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return @paths;
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}
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1;
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@ -1,129 +0,0 @@
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package Slic3r::Fill::Honeycomb;
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use Moo;
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extends 'Slic3r::Fill::Base';
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with qw(Slic3r::Fill::WithDirection);
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has 'cache' => (is => 'rw', default => sub {{}});
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use Slic3r::Geometry qw(PI X Y MIN MAX scale scaled_epsilon);
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use Slic3r::Geometry::Clipper qw(intersection intersection_pl);
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sub angles () { [0, PI/3, PI/3*2] }
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sub fill_surface {
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my $self = shift;
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my ($surface, %params) = @_;
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my $rotate_vector = $self->infill_direction($surface);
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# cache hexagons math
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my $cache_id = sprintf "d%s_s%s", $params{density}, $self->spacing;
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my $m;
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if (!($m = $self->cache->{$cache_id})) {
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$m = $self->cache->{$cache_id} = {};
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my $min_spacing = scale($self->spacing);
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$m->{distance} = $min_spacing / $params{density};
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$m->{hex_side} = $m->{distance} / (sqrt(3)/2);
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$m->{hex_width} = $m->{distance} * 2; # $m->{hex_width} == $m->{hex_side} * sqrt(3);
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my $hex_height = $m->{hex_side} * 2;
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$m->{pattern_height} = $hex_height + $m->{hex_side};
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$m->{y_short} = $m->{distance} * sqrt(3)/3;
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$m->{x_offset} = $min_spacing / 2;
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$m->{y_offset} = $m->{x_offset} * sqrt(3)/3;
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$m->{hex_center} = Slic3r::Point->new($m->{hex_width}/2, $m->{hex_side});
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}
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my @polygons = ();
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{
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# adjust actual bounding box to the nearest multiple of our hex pattern
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# and align it so that it matches across layers
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my $bounding_box = $surface->expolygon->bounding_box;
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{
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# rotate bounding box according to infill direction
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my $bb_polygon = $bounding_box->polygon;
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$bb_polygon->rotate($rotate_vector->[0][0], $m->{hex_center});
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$bounding_box = $bb_polygon->bounding_box;
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# extend bounding box so that our pattern will be aligned with other layers
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# $bounding_box->[X1] and [Y1] represent the displacement between new bounding box offset and old one
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$bounding_box->merge_point(Slic3r::Point->new(
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$bounding_box->x_min - ($bounding_box->x_min % $m->{hex_width}),
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$bounding_box->y_min - ($bounding_box->y_min % $m->{pattern_height}),
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));
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}
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my $x = $bounding_box->x_min;
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while ($x <= $bounding_box->x_max) {
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my $p = [];
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my @x = ($x + $m->{x_offset}, $x + $m->{distance} - $m->{x_offset});
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for (1..2) {
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@$p = reverse @$p; # turn first half upside down
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my @p = ();
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for (my $y = $bounding_box->y_min; $y <= $bounding_box->y_max; $y += $m->{y_short} + $m->{hex_side} + $m->{y_short} + $m->{hex_side}) {
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push @$p,
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[ $x[1], $y + $m->{y_offset} ],
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[ $x[0], $y + $m->{y_short} - $m->{y_offset} ],
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[ $x[0], $y + $m->{y_short} + $m->{hex_side} + $m->{y_offset} ],
|
||||
[ $x[1], $y + $m->{y_short} + $m->{hex_side} + $m->{y_short} - $m->{y_offset} ],
|
||||
[ $x[1], $y + $m->{y_short} + $m->{hex_side} + $m->{y_short} + $m->{hex_side} + $m->{y_offset} ];
|
||||
}
|
||||
@x = map $_ + $m->{distance}, reverse @x; # draw symmetrical pattern
|
||||
$x += $m->{distance};
|
||||
}
|
||||
|
||||
push @polygons, Slic3r::Polygon->new(@$p);
|
||||
}
|
||||
|
||||
$_->rotate(-$rotate_vector->[0][0], $m->{hex_center}) for @polygons;
|
||||
}
|
||||
|
||||
my @paths;
|
||||
if ($params{complete} || 1) {
|
||||
# we were requested to complete each loop;
|
||||
# in this case we don't try to make more continuous paths
|
||||
@paths = map $_->split_at_first_point,
|
||||
@{intersection([ $surface->p ], \@polygons)};
|
||||
|
||||
} else {
|
||||
# consider polygons as polylines without re-appending the initial point:
|
||||
# this cuts the last segment on purpose, so that the jump to the next
|
||||
# path is more straight
|
||||
@paths = @{intersection_pl(
|
||||
[ map Slic3r::Polyline->new(@$_), @polygons ],
|
||||
[ @{$surface->expolygon} ],
|
||||
)};
|
||||
|
||||
# connect paths
|
||||
if (@paths) { # prevent calling leftmost_point() on empty collections
|
||||
my $collection = Slic3r::Polyline::Collection->new(@paths);
|
||||
@paths = ();
|
||||
foreach my $path (@{$collection->chained_path_from($collection->leftmost_point, 0)}) {
|
||||
if (@paths) {
|
||||
# distance between first point of this path and last point of last path
|
||||
my $distance = $paths[-1]->last_point->distance_to($path->first_point);
|
||||
|
||||
if ($distance <= $m->{hex_width}) {
|
||||
$paths[-1]->append_polyline($path);
|
||||
next;
|
||||
}
|
||||
}
|
||||
|
||||
# make a clone before $collection goes out of scope
|
||||
push @paths, $path->clone;
|
||||
}
|
||||
}
|
||||
|
||||
# clip paths again to prevent connection segments from crossing the expolygon boundaries
|
||||
@paths = @{intersection_pl(
|
||||
\@paths,
|
||||
[ map @$_, @{$surface->expolygon->offset_ex(scaled_epsilon)} ],
|
||||
)};
|
||||
}
|
||||
|
||||
return @paths;
|
||||
}
|
||||
|
||||
1;
|
||||
|
|
@ -1,118 +0,0 @@
|
|||
package Slic3r::Fill::PlanePath;
|
||||
use Moo;
|
||||
|
||||
extends 'Slic3r::Fill::Base';
|
||||
with qw(Slic3r::Fill::WithDirection);
|
||||
|
||||
use Slic3r::Geometry qw(scale X1 Y1 X2 Y2);
|
||||
use Slic3r::Geometry::Clipper qw(intersection_pl);
|
||||
|
||||
sub angles () { [0] }
|
||||
sub multiplier () { 1 }
|
||||
|
||||
sub process_polyline {}
|
||||
|
||||
sub fill_surface {
|
||||
my $self = shift;
|
||||
my ($surface, %params) = @_;
|
||||
|
||||
# rotate polygons
|
||||
my $expolygon = $surface->expolygon->clone;
|
||||
my $rotate_vector = $self->infill_direction($surface);
|
||||
$self->rotate_points($expolygon, $rotate_vector);
|
||||
|
||||
my $distance_between_lines = scale($self->spacing) / $params{density} * $self->multiplier;
|
||||
|
||||
# align infill across layers using the object's bounding box
|
||||
my $bb_polygon = $self->bounding_box->polygon;
|
||||
$self->rotate_points($bb_polygon, $rotate_vector);
|
||||
my $bounding_box = $bb_polygon->bounding_box;
|
||||
|
||||
(ref $self) =~ /::([^:]+)$/;
|
||||
my $path = "Math::PlanePath::$1"->new;
|
||||
|
||||
my $translate = Slic3r::Point->new(0,0); # vector
|
||||
if ($path->x_negative || $path->y_negative) {
|
||||
# if the curve extends on both positive and negative coordinate space,
|
||||
# center our expolygon around origin
|
||||
$translate = $bounding_box->center->negative;
|
||||
} else {
|
||||
# if the curve does not extend in negative coordinate space,
|
||||
# move expolygon entirely in positive coordinate space
|
||||
$translate = $bounding_box->min_point->negative;
|
||||
}
|
||||
$expolygon->translate(@$translate);
|
||||
$bounding_box->translate(@$translate);
|
||||
|
||||
my ($n_lo, $n_hi) = $path->rect_to_n_range(
|
||||
map { $_ / $distance_between_lines }
|
||||
@{$bounding_box->min_point},
|
||||
@{$bounding_box->max_point},
|
||||
);
|
||||
|
||||
my $polyline = Slic3r::Polyline->new(
|
||||
map [ map { $_ * $distance_between_lines } $path->n_to_xy($_) ], ($n_lo..$n_hi)
|
||||
);
|
||||
return {} if @$polyline <= 1;
|
||||
|
||||
$self->process_polyline($polyline, $bounding_box);
|
||||
|
||||
my @paths = @{intersection_pl([$polyline], \@$expolygon)};
|
||||
|
||||
if (0) {
|
||||
require "Slic3r/SVG.pm";
|
||||
Slic3r::SVG::output("fill.svg",
|
||||
no_arrows => 1,
|
||||
polygons => \@$expolygon,
|
||||
green_polygons => [ $bounding_box->polygon ],
|
||||
polylines => [ $polyline ],
|
||||
red_polylines => \@paths,
|
||||
);
|
||||
}
|
||||
|
||||
# paths must be repositioned and rotated back
|
||||
$_->translate(@{$translate->negative}) for @paths;
|
||||
$self->rotate_points_back(\@paths, $rotate_vector);
|
||||
|
||||
return @paths;
|
||||
}
|
||||
|
||||
|
||||
package Slic3r::Fill::ArchimedeanChords;
|
||||
use Moo;
|
||||
extends 'Slic3r::Fill::PlanePath';
|
||||
use Math::PlanePath::ArchimedeanChords;
|
||||
|
||||
|
||||
package Slic3r::Fill::Flowsnake;
|
||||
use Moo;
|
||||
extends 'Slic3r::Fill::PlanePath';
|
||||
use Math::PlanePath::Flowsnake;
|
||||
use Slic3r::Geometry qw(X);
|
||||
|
||||
# Sorry, this fill is currently broken.
|
||||
|
||||
sub process_polyline {
|
||||
my $self = shift;
|
||||
my ($polyline, $bounding_box) = @_;
|
||||
|
||||
$_->[X] += $bounding_box->center->[X] for @$polyline;
|
||||
}
|
||||
|
||||
|
||||
package Slic3r::Fill::HilbertCurve;
|
||||
use Moo;
|
||||
extends 'Slic3r::Fill::PlanePath';
|
||||
use Math::PlanePath::HilbertCurve;
|
||||
|
||||
|
||||
package Slic3r::Fill::OctagramSpiral;
|
||||
use Moo;
|
||||
extends 'Slic3r::Fill::PlanePath';
|
||||
use Math::PlanePath::OctagramSpiral;
|
||||
|
||||
sub multiplier () { sqrt(2) }
|
||||
|
||||
|
||||
|
||||
1;
|
||||
|
|
@ -1,168 +0,0 @@
|
|||
package Slic3r::Fill::Rectilinear;
|
||||
use Moo;
|
||||
|
||||
extends 'Slic3r::Fill::Base';
|
||||
with qw(Slic3r::Fill::WithDirection);
|
||||
|
||||
has '_min_spacing' => (is => 'rw');
|
||||
has '_line_spacing' => (is => 'rw');
|
||||
has '_diagonal_distance' => (is => 'rw');
|
||||
has '_line_oscillation' => (is => 'rw');
|
||||
|
||||
use Slic3r::Geometry qw(scale unscale scaled_epsilon);
|
||||
use Slic3r::Geometry::Clipper qw(intersection_pl);
|
||||
|
||||
sub horizontal_lines { 0 }
|
||||
|
||||
sub fill_surface {
|
||||
my $self = shift;
|
||||
my ($surface, %params) = @_;
|
||||
|
||||
# rotate polygons so that we can work with vertical lines here
|
||||
my $expolygon = $surface->expolygon->clone;
|
||||
my $rotate_vector = $self->infill_direction($surface);
|
||||
$self->rotate_points($expolygon, $rotate_vector);
|
||||
|
||||
$self->_min_spacing(scale $self->spacing);
|
||||
$self->_line_spacing($self->_min_spacing / $params{density});
|
||||
$self->_diagonal_distance($self->_line_spacing * 2);
|
||||
$self->_line_oscillation($self->_line_spacing - $self->_min_spacing); # only for Line infill
|
||||
my $bounding_box = $expolygon->bounding_box;
|
||||
|
||||
# define flow spacing according to requested density
|
||||
if ($params{density} == 1 && !$params{dont_adjust}) {
|
||||
$self->_line_spacing($self->adjust_solid_spacing(
|
||||
width => $bounding_box->size->x,
|
||||
distance => $self->_line_spacing,
|
||||
));
|
||||
$self->spacing(unscale $self->_line_spacing);
|
||||
} else {
|
||||
# extend bounding box so that our pattern will be aligned with other layers
|
||||
$bounding_box->merge_point(Slic3r::Point->new(
|
||||
$bounding_box->x_min - ($bounding_box->x_min % $self->_line_spacing),
|
||||
$bounding_box->y_min - ($bounding_box->y_min % $self->_line_spacing),
|
||||
));
|
||||
}
|
||||
|
||||
# generate the basic pattern
|
||||
my $x_max = $bounding_box->x_max + scaled_epsilon;
|
||||
my @lines = ();
|
||||
for (my $x = $bounding_box->x_min; $x <= $x_max; $x += $self->_line_spacing) {
|
||||
push @lines, $self->_line($#lines, $x, $bounding_box->y_min, $bounding_box->y_max);
|
||||
}
|
||||
if ($self->horizontal_lines) {
|
||||
my $y_max = $bounding_box->y_max + scaled_epsilon;
|
||||
for (my $y = $bounding_box->y_min; $y <= $y_max; $y += $self->_line_spacing) {
|
||||
push @lines, Slic3r::Polyline->new(
|
||||
[$bounding_box->x_min, $y],
|
||||
[$bounding_box->x_max, $y],
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
# clip paths against a slightly larger expolygon, so that the first and last paths
|
||||
# are kept even if the expolygon has vertical sides
|
||||
# the minimum offset for preventing edge lines from being clipped is scaled_epsilon;
|
||||
# however we use a larger offset to support expolygons with slightly skewed sides and
|
||||
# not perfectly straight
|
||||
my @polylines = @{intersection_pl(\@lines, $expolygon->offset(+scale 0.02))};
|
||||
|
||||
my $extra = $self->_min_spacing * &Slic3r::INFILL_OVERLAP_OVER_SPACING;
|
||||
foreach my $polyline (@polylines) {
|
||||
my ($first_point, $last_point) = @$polyline[0,-1];
|
||||
if ($first_point->y > $last_point->y) { #>
|
||||
($first_point, $last_point) = ($last_point, $first_point);
|
||||
}
|
||||
$first_point->set_y($first_point->y - $extra); #--
|
||||
$last_point->set_y($last_point->y + $extra); #++
|
||||
}
|
||||
|
||||
# connect lines
|
||||
unless ($params{dont_connect} || !@polylines) { # prevent calling leftmost_point() on empty collections
|
||||
# offset the expolygon by max(min_spacing/2, extra)
|
||||
my ($expolygon_off) = @{$expolygon->offset_ex($self->_min_spacing/2)};
|
||||
my $collection = Slic3r::Polyline::Collection->new(@polylines);
|
||||
@polylines = ();
|
||||
|
||||
foreach my $polyline (@{$collection->chained_path_from($collection->leftmost_point, 0)}) {
|
||||
if (@polylines) {
|
||||
my $first_point = $polyline->first_point;
|
||||
my $last_point = $polylines[-1]->last_point;
|
||||
my @distance = map abs($first_point->$_ - $last_point->$_), qw(x y);
|
||||
|
||||
# TODO: we should also check that both points are on a fill_boundary to avoid
|
||||
# connecting paths on the boundaries of internal regions
|
||||
if ($self->_can_connect(@distance) && $expolygon_off->contains_line(Slic3r::Line->new($last_point, $first_point))) {
|
||||
$polylines[-1]->append_polyline($polyline);
|
||||
next;
|
||||
}
|
||||
}
|
||||
|
||||
# make a clone before $collection goes out of scope
|
||||
push @polylines, $polyline->clone;
|
||||
}
|
||||
}
|
||||
|
||||
# paths must be rotated back
|
||||
$self->rotate_points_back(\@polylines, $rotate_vector);
|
||||
|
||||
return @polylines;
|
||||
}
|
||||
|
||||
sub _line {
|
||||
my ($self, $i, $x, $y_min, $y_max) = @_;
|
||||
|
||||
return Slic3r::Polyline->new(
|
||||
[$x, $y_min],
|
||||
[$x, $y_max],
|
||||
);
|
||||
}
|
||||
|
||||
sub _can_connect {
|
||||
my ($self, $dist_X, $dist_Y) = @_;
|
||||
|
||||
return $dist_X <= $self->_diagonal_distance
|
||||
&& $dist_Y <= $self->_diagonal_distance;
|
||||
}
|
||||
|
||||
|
||||
package Slic3r::Fill::Line;
|
||||
use Moo;
|
||||
extends 'Slic3r::Fill::Rectilinear';
|
||||
|
||||
use Slic3r::Geometry qw(scaled_epsilon);
|
||||
|
||||
sub _line {
|
||||
my ($self, $i, $x, $y_min, $y_max) = @_;
|
||||
|
||||
if ($i % 2) {
|
||||
return Slic3r::Polyline->new(
|
||||
[$x - $self->_line_oscillation, $y_min],
|
||||
[$x + $self->_line_oscillation, $y_max],
|
||||
);
|
||||
} else {
|
||||
return Slic3r::Polyline->new(
|
||||
[$x, $y_min],
|
||||
[$x, $y_max],
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
sub _can_connect {
|
||||
my ($self, $dist_X, $dist_Y) = @_;
|
||||
|
||||
my $TOLERANCE = 10 * scaled_epsilon;
|
||||
return ($dist_X >= ($self->_line_spacing - $self->_line_oscillation) - $TOLERANCE)
|
||||
&& ($dist_X <= ($self->_line_spacing + $self->_line_oscillation) + $TOLERANCE)
|
||||
&& $dist_Y <= $self->_diagonal_distance;
|
||||
}
|
||||
|
||||
|
||||
package Slic3r::Fill::Grid;
|
||||
use Moo;
|
||||
extends 'Slic3r::Fill::Rectilinear';
|
||||
|
||||
sub angles () { [0] }
|
||||
sub horizontal_lines { 1 }
|
||||
|
||||
1;
|
||||
Loading…
Add table
Add a link
Reference in a new issue