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New --perimeters-extrusion-width and --infill-extrusion-width options. #302

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This commit is contained in:
Alessandro Ranellucci 2012-06-06 18:05:03 +02:00
parent 8a031fe501
commit 82dd3c7a3e
17 changed files with 150 additions and 108 deletions
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lib/Slic3r/Flow.pm Normal file
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package Slic3r::Flow;
use Moo;
use Slic3r::Geometry qw(PI);
has 'width' => (is => 'rw');
has 'min_spacing' => (is => 'rw');
has 'spacing' => (is => 'rw');
sub calculate {
my $self = shift;
my ($extrusion_width) = @_;
my ($flow_width, $min_flow_spacing, $flow_spacing);
if ($extrusion_width) {
$flow_width = $extrusion_width =~ /^(\d+(?:\.\d+)?)%$/
? ($Slic3r::layer_height * $1 / 100)
: $extrusion_width;
} else {
# here we calculate a sane default by matching the flow speed (at the nozzle)
# and the feed rate
my $volume = ($Slic3r::nozzle_diameter**2) * PI/4;
my $shape_threshold = $Slic3r::nozzle_diameter * $Slic3r::layer_height
+ ($Slic3r::layer_height**2) * PI/4;
if ($volume >= $shape_threshold) {
# rectangle with semicircles at the ends
$flow_width = (($Slic3r::nozzle_diameter**2) * PI + ($Slic3r::layer_height**2) * (4 - PI)) / (4 * $Slic3r::layer_height);
} else {
# rectangle with squished semicircles at the ends
$flow_width = $Slic3r::nozzle_diameter * ($Slic3r::nozzle_diameter/$Slic3r::layer_height - 4/PI + 1);
}
my $min_flow_width = $Slic3r::nozzle_diameter * 1.05;
my $max_flow_width = $Slic3r::nozzle_diameter * 1.4;
$flow_width = $max_flow_width if $flow_width > $max_flow_width;
$flow_width = $min_flow_width if $flow_width < $min_flow_width;
}
if ($flow_width >= ($Slic3r::nozzle_diameter + $Slic3r::layer_height)) {
# rectangle with semicircles at the ends
$min_flow_spacing = $flow_width - $Slic3r::layer_height * (1 - PI/4);
} else {
# rectangle with shrunk semicircles at the ends
$min_flow_spacing = $flow_width * (1 - PI/4) + $Slic3r::nozzle_diameter * PI/4;
}
$flow_spacing = $flow_width - $Slic3r::overlap_factor * ($flow_width - $min_flow_spacing);
$self->width($flow_width);
$self->min_spacing($min_flow_spacing);
$self->spacing($flow_spacing);
}
1;