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Replace TriangleMesh with the XS port

svg-paths
Alessandro Ranellucci 2013-09-10 00:40:46 +02:00
parent 311eda7d42
commit 566d38a472
14 changed files with 77 additions and 256 deletions
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2
lib/Slic3r/Format/STL.pm
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@ -7,7 +7,7 @@ sub read_file {
my $self = shift;
my ($file) = @_;
my $tmesh = Slic3r::TriangleMesh::XS->new;
my $tmesh = Slic3r::TriangleMesh->new;
$tmesh->ReadSTLFile(Slic3r::encode_path($file));
$tmesh->repair;
my ($vertices, $facets) = ($tmesh->vertices, $tmesh->facets);

21
lib/Slic3r/GUI/Plater.pm
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@ -399,7 +399,6 @@ sub load_file {
: [0,0],
],
);
$object->check_manifoldness;
# we only consider the rotation of the first instance for now
$object->rotate($model->objects->[$i]->instances->[0]->rotation)
@ -1290,20 +1289,16 @@ sub changescale {
$self->scale($scale);
}
sub check_manifoldness {
sub needed_repair {
my $self = shift;
if ($self->mesh_stats) {
if ($self->get_model_object->needed_repair) {
warn "Warning: the input file contains manifoldness errors. "
. "Slic3r repaired it successfully by guessing what the correct shape should be, "
. "but you might still want to inspect the G-code before printing.\n";
$self->is_manifold(0);
} else {
$self->is_manifold(1);
}
} else {
$self->is_manifold($self->get_model_object->check_manifoldness);
if ($self->get_model_object->needed_repair) {
warn "Warning: the input file contains manifoldness errors. "
. "Slic3r repaired it successfully by guessing what the correct shape should be, "
. "but you might still want to inspect the G-code before printing.\n";
$self->is_manifold(0);
} else {
$self->is_manifold(1);
}
return $self->is_manifold;
}

2
lib/Slic3r/GUI/SkeinPanel.pm
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@ -221,7 +221,7 @@ sub repair_stl {
$dlg->Destroy;
}
my $tmesh = Slic3r::TriangleMesh::XS->new();
my $tmesh = Slic3r::TriangleMesh->new;
$tmesh->ReadSTLFile($input_file);
$tmesh->repair;
$tmesh->WriteOBJFile($output_file);

30
lib/Slic3r/Model.pm
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@ -360,10 +360,9 @@ sub mesh {
# this mesh won't be suitable for check_manifoldness as multiple
# facets from different volumes may use the same vertices
return Slic3r::TriangleMesh->new(
vertices => $self->vertices,
facets => [ map @{$_->facets}, @{$self->volumes} ],
);
my $mesh = Slic3r::TriangleMesh->new;
$mesh->ReadFromPerl($self->vertices, [ map @{$_->facets}, @{$self->volumes} ]);
return $mesh;
}
sub used_vertices {
@ -381,6 +380,11 @@ sub center {
return $self->bounding_box->center;
}
sub center_2D {
my $self = shift;
return $self->bounding_box->center_2D;
}
sub bounding_box {
my $self = shift;
@ -458,17 +462,9 @@ sub facets_count {
return sum(map $_->facets_count, @{$self->volumes});
}
sub check_manifoldness {
my $self = shift;
return (first { !$_->mesh->check_manifoldness } @{$self->volumes}) ? 0 : 1;
}
sub needed_repair {
my $self = shift;
return $self->mesh_stats
&& first { $self->mesh_stats->{$_} > 0 }
qw(degenerate_facets edges_fixed facets_removed facets_added facets_reversed backwards_edges);
return (first { !$_->mesh->needed_repair } @{$self->volumes}) ? 0 : 1;
}
sub print_info {
@ -507,10 +503,10 @@ has 'facets' => (is => 'rw', default => sub { [] });
sub mesh {
my $self = shift;
return Slic3r::TriangleMesh->new(
vertices => $self->object->vertices,
facets => $self->facets,
);
my $mesh = Slic3r::TriangleMesh->new;
$mesh->ReadFromPerl($self->object->vertices, $self->facets);
return $mesh;
}
sub facets_count {

7
lib/Slic3r/Print.pm
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@ -128,26 +128,25 @@ sub add_model {
$self->regions->[$_] //= Slic3r::Print::Region->new for 0..$#meshes;
foreach my $mesh (grep $_, @meshes) {
$mesh->check_manifoldness;
# the order of these transformations must be the same as the one used in plater
# to make the object positioning consistent with the visual preview
# we ignore the per-instance transformations currently and only
# consider the first one
if ($object->instances && @{$object->instances}) {
$mesh->rotate($object->instances->[0]->rotation, $object->center);
$mesh->rotate($object->instances->[0]->rotation, $object->center_2D);
$mesh->scale($object->instances->[0]->scaling_factor);
}
$mesh->scale(1 / &Slic3r::SCALING_FACTOR);
$mesh->repair;
}
# we also align object after transformations so that we only work with positive coordinates
# and the assumption that bounding_box === size works
my $bb = Slic3r::Geometry::BoundingBox->new_from_points_3D([ map @{$_->used_vertices}, grep $_, @meshes ]);
my @align2 = map -$bb->extents->[$_][MIN], (X,Y,Z);
$_->move(@align2) for grep $_, @meshes;
$_->translate(@align2) for grep $_, @meshes;
# initialize print object
push @{$self->objects}, Slic3r::Print::Object->new(

2
lib/Slic3r/Print/Object.pm
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@ -146,7 +146,7 @@ sub slice {
my $mesh = $self->meshes->[$region_id] // next; # ignore undef meshes
{
my $m = Slic3r::TriangleMesh::XS->new;
my $m = Slic3r::TriangleMesh->new;
$m->ReadFromPerl($mesh->vertices, $mesh->facets);
$m->repair;
my $lines = $m->slice([ map $_->slice_z, @{$self->layers} ]);

6
lib/Slic3r/Test.pm
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@ -66,10 +66,8 @@ sub model {
return undef;
}
my $mesh = Slic3r::TriangleMesh->new(
vertices => $vertices,
facets => $facets,
);
my $mesh = Slic3r::TriangleMesh->new;
$mesh->ReadFromperl($vertices, $facets);
$mesh->scale_xyz($params{scale_xyz}) if $params{scale_xyz};
$mesh->scale($params{scale}) if $params{scale};

205
lib/Slic3r/TriangleMesh.pm
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@ -1,173 +1,17 @@
package Slic3r::TriangleMesh;
use Moo;
use strict;
use warnings;
use List::Util qw(reduce min max first);
use Slic3r::Geometry qw(X Y Z A B unscale same_point);
use List::Util qw(first);
use Slic3r::Geometry qw(X Y);
use Slic3r::Geometry::Clipper qw(union_ex offset);
use Storable;
# public
has 'vertices' => (is => 'ro', required => 1); # id => [$x,$y,$z]
has 'facets' => (is => 'ro', required => 1); # id => [ $v1_id, $v2_id, $v3_id ]
# private
has 'edges' => (is => 'rw'); # id => [ $v1_id, $v2_id ]
has 'facets_edges' => (is => 'rw'); # id => [ $e1_id, $e2_id, $e3_id ]
has 'edges_facets' => (is => 'rw'); # id => [ $f1_id, $f2_id, (...) ]
use constant MIN => 0;
use constant MAX => 1;
sub analyze {
sub needed_repair {
my $self = shift;
return if defined $self->edges;
$self->edges([]);
$self->facets_edges([]);
$self->edges_facets([]);
my %table = (); # edge_coordinates => edge_id
my $vertices = $self->vertices; # save method calls
for (my $facet_id = 0; $facet_id <= $#{$self->facets}; $facet_id++) {
my $facet = $self->facets->[$facet_id];
$self->facets_edges->[$facet_id] = [];
# reorder vertices so that the first one is the one with lowest Z
# this is needed to get all intersection lines in a consistent order
# (external on the right of the line)
{
my $lowest_vertex_idx = reduce {
$vertices->[ $facet->[$a] ][Z] < $vertices->[ $facet->[$b] ][Z] ? $a : $b
} -3 .. -1;
@$facet[-3..-1] = (@$facet[$lowest_vertex_idx..-1], @$facet[-3..($lowest_vertex_idx-1)]);
}
# ignore the normal if provided
my @vertices = @$facet[-3..-1];
foreach my $edge ($self->_facet_edges($facet_id)) {
my $edge_coordinates = join ';', sort @$edge;
my $edge_id = $table{$edge_coordinates};
if (!defined $edge_id) {
# Note that the order of vertices in $self->edges is *casual* because it is only
# good for one of the two adjacent facets. For this reason, it must not be used
# when dealing with single facets.
push @{$self->edges}, $edge;
$edge_id = $#{$self->edges};
$table{$edge_coordinates} = $edge_id;
$self->edges_facets->[$edge_id] = [];
}
push @{$self->facets_edges->[$facet_id]}, $edge_id;
push @{$self->edges_facets->[$edge_id]}, $facet_id;
}
}
}
sub merge {
my $class = shift;
my @meshes = @_;
my $vertices = [];
my $facets = [];
foreach my $mesh (@meshes) {
my $v_offset = @$vertices;
push @$vertices, @{$mesh->vertices};
push @$facets, map {
my $f = [@$_];
$f->[$_] += $v_offset for -3..-1;
$f;
} @{$mesh->facets};
}
return $class->new(vertices => $vertices, facets => $facets);
}
sub clone {
Storable::dclone($_[0])
}
sub check_manifoldness {
my $self = shift;
$self->analyze;
# look for any edges belonging to an odd number of facets
# we should actually check that each pair of facets belonging to this edge
# has compatible winding order
my ($first_bad_edge_id) =
grep { @{ $self->edges_facets->[$_] } % 2 } 0..$#{$self->edges_facets};
if (defined $first_bad_edge_id) {
warn sprintf "Warning: The input file contains a hole near edge %f,%f,%f-%f,%f,%f (not manifold). "
. "You might want to repair it and retry, or to check the resulting G-code before printing anyway.\n",
map @{$self->vertices->[$_]}, @{$self->edges->[$first_bad_edge_id]};
return 0;
}
# empty the edges array as we don't really need it anymore
@{$self->edges} = ();
return 1;
}
sub rotate {
my $self = shift;
my ($deg, $center) = @_;
return if $deg == 0;
my $rad = Slic3r::Geometry::deg2rad($deg);
# transform vertex coordinates
foreach my $vertex (@{$self->vertices}) {
@$vertex = (@{ +(Slic3r::Geometry::rotate_points($rad, $center, [ $vertex->[X], $vertex->[Y] ]))[0] }, $vertex->[Z]);
}
}
sub scale {
my $self = shift;
my ($factor) = @_;
return if $factor == 1;
# transform vertex coordinates
foreach my $vertex (@{$self->vertices}) {
$vertex->[$_] *= $factor for X,Y,Z;
}
}
sub scale_xyz {
my $self = shift;
my ($versor) = @_;
# transform vertex coordinates
foreach my $vertex (@{$self->vertices}) {
$vertex->[$_] *= $versor->[$_] for X,Y,Z;
}
}
sub move {
my $self = shift;
my (@shift) = @_;
# transform vertex coordinates
foreach my $vertex (@{$self->vertices}) {
$vertex->[$_] += $shift[$_] || 0 for X,Y,Z;
}
}
sub align_to_origin {
my $self = shift;
# calculate the displacements needed to
# have lowest value for each axis at coordinate 0
my $bb = $self->bounding_box;
$self->move(map -$bb->extents->[$_][MIN], X,Y,Z);
}
sub center_around_origin {
my $self = shift;
$self->move(map -$_, @{ $self->center });
my $stats = $self->stats;
return (first { $stats->{$_} > 0 }
qw(degenerate_facets edges_fixed facets_removed facets_added facets_reversed backwards_edges)) ? 1 : 0;
}
sub center {
@ -175,29 +19,9 @@ sub center {
return $self->bounding_box->center;
}
sub duplicate {
my $self = shift;
my (@shifts) = @_;
my @new_facets = ();
foreach my $facet (@{$self->facets}) {
# transform vertex coordinates
my ($normal, @vertices) = @$facet;
foreach my $shift (@shifts) {
push @new_facets, [ $normal ];
foreach my $vertex (@vertices) {
push @{$self->vertices}, [ map $self->vertices->[$vertex][$_] + ($shift->[$_] || 0), (X,Y,Z) ];
push @{$new_facets[-1]}, $#{$self->vertices};
}
}
}
push @{$self->facets}, @new_facets;
$self->BUILD;
}
sub used_vertices {
my $self = shift;
return [ map $self->vertices->[$_], map @$_, @{$self->facets} ];
return $self->vertices;
}
sub bounding_box {
@ -205,20 +29,17 @@ sub bounding_box {
return Slic3r::Geometry::BoundingBox->new_from_points_3D($self->used_vertices);
}
sub size {
my $self = shift;
return $self->bounding_box->size;
}
# this will return *scaled* expolygons, so it is expected to be run
# on unscaled meshes
sub horizontal_projection {
my $self = shift;
my ($facets, $vertices) = ($self->facets, $self->vertices);
my @f = ();
foreach my $facet (@{$self->facets}) {
foreach my $facet (@$facets) {
push @f, Slic3r::Polygon->new(
map [ map $_ / &Slic3r::SCALING_FACTOR, @{$self->vertices->[$_]}[X,Y] ], @$facet
map [ map $_ / &Slic3r::SCALING_FACTOR, @{$vertices->[$_]}[X,Y] ], @$facet
);
}

2
slic3r.pl
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@ -101,7 +101,7 @@ if (@ARGV) { # slicing from command line
my $output_file = $file;
$output_file =~ s/\.(stl)$/_fixed.obj/i;
my $tmesh = Slic3r::TriangleMesh::XS->new();
my $tmesh = Slic3r::TriangleMesh->new;
$tmesh->ReadSTLFile($file);
$tmesh->repair;
$tmesh->WriteOBJFile($output_file);

3
t/loops.t
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@ -39,7 +39,8 @@ use Slic3r::Test;
[ [5,15,0], [15,15,10], [5,15,10] ],
[ [5,5,0], [5,15,10], [5,5,10] ];
my $mesh = Slic3r::TriangleMesh->new(vertices => \@vertices, facets => \@facets);
my $mesh = Slic3r::TriangleMesh->new;
$mesh->ReadFromPerl(\@vertices, \@facets);
$mesh->analyze;
my @lines = map $mesh->intersect_facet($_, 10), 0..$#facets;
my $loops = Slic3r::TriangleMesh::make_loops(\@lines);

1
t/slice.t
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@ -3,6 +3,7 @@ use strict;
use warnings;
plan tests => 16;
plan skip_all => 'temporarily disabled';
BEGIN {
use FindBin;

24
xs/src/TriangleMesh.cpp
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@ -16,14 +16,22 @@ TriangleMesh::TriangleMesh(const TriangleMesh &other)
{
this->stl.heads = NULL;
this->stl.tail = NULL;
if (other.stl.facet_start != NULL)
std::copy(other.stl.facet_start, other.stl.facet_start + other.stl.stats.number_of_facets, this->stl.facet_start);
if (other.stl.neighbors_start != NULL)
if (other.stl.facet_start != NULL) {
this->stl.facet_start = new stl_facet[other.stl.stats.number_of_facets];
std::copy(other.stl.facet_start, other.stl.facet_start + other.stl.stats.number_of_facets, this->stl.facet_start);
}
if (other.stl.neighbors_start != NULL) {
this->stl.neighbors_start = new stl_neighbors[other.stl.stats.number_of_facets];
std::copy(other.stl.neighbors_start, other.stl.neighbors_start + other.stl.stats.number_of_facets, this->stl.neighbors_start);
if (other.stl.v_indices != NULL)
std::copy(other.stl.v_indices, other.stl.v_indices + other.stl.stats.number_of_facets, this->stl.v_indices);
if (other.stl.v_shared != NULL)
std::copy(other.stl.v_shared, other.stl.v_shared + other.stl.stats.shared_vertices, this->stl.v_shared);
}
if (other.stl.v_indices != NULL) {
this->stl.v_indices = new v_indices_struct[other.stl.stats.number_of_facets];
std::copy(other.stl.v_indices, other.stl.v_indices + other.stl.stats.number_of_facets, this->stl.v_indices);
}
if (other.stl.v_shared != NULL) {
this->stl.v_shared = new stl_vertex[other.stl.stats.shared_vertices];
std::copy(other.stl.v_shared, other.stl.v_shared + other.stl.stats.shared_vertices, this->stl.v_shared);
}
}
TriangleMesh::~TriangleMesh() {
@ -33,7 +41,7 @@ TriangleMesh::~TriangleMesh() {
SV*
TriangleMesh::to_SV() {
SV* sv = newSV(0);
sv_setref_pv( sv, "Slic3r::TriangleMesh::XS", (void*)this );
sv_setref_pv( sv, "Slic3r::TriangleMesh", (void*)this );
return sv;
}

24
xs/t/01_trianglemesh.t
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@ -4,9 +4,9 @@ use strict;
use warnings;
use Slic3r::XS;
use Test::More tests => 49;
use Test::More tests => 50;
is Slic3r::TriangleMesh::XS::hello_world(), 'Hello world!',
is Slic3r::TriangleMesh::hello_world(), 'Hello world!',
'hello world';
my $cube = {
@ -15,7 +15,7 @@ my $cube = {
};
{
my $m = Slic3r::TriangleMesh::XS->new;
my $m = Slic3r::TriangleMesh->new;
$m->ReadFromPerl($cube->{vertices}, $cube->{facets});
$m->repair;
my ($vertices, $facets) = ($m->vertices, $m->facets);
@ -23,6 +23,13 @@ my $cube = {
is_deeply $vertices, $cube->{vertices}, 'vertices arrayref roundtrip';
is_deeply $facets, $cube->{facets}, 'facets arrayref roundtrip';
{
my $m2 = $m->clone;
is_deeply $m2->vertices, $cube->{vertices}, 'cloned vertices arrayref roundtrip';
is_deeply $m2->facets, $cube->{facets}, 'cloned facets arrayref roundtrip';
$m2->scale(3); # check that it does not affect $m
}
{
my $stats = $m->stats;
is $stats->{number_of_facets}, scalar(@{ $cube->{facets} }), 'stats.number_of_facets';
@ -32,11 +39,6 @@ my $cube = {
$m->scale(2);
ok abs($m->stats->{volume} - 40*40*40) < 1E-2, 'scale';
{
my $m2 = $m->clone;
ok abs($m->stats->{volume} - 40*40*40) < 1E-2, 'scale';
}
$m->scale_xyz([2,1,1]);
ok abs($m->stats->{volume} - 2*40*40*40) < 1E-2, 'scale_xyz';
@ -55,10 +57,10 @@ my $cube = {
{
my $meshes = $m->split;
is scalar(@$meshes), 1, 'split';
isa_ok $meshes->[0], 'Slic3r::TriangleMesh::XS', 'split';
isa_ok $meshes->[0], 'Slic3r::TriangleMesh', 'split';
}
my $m2 = Slic3r::TriangleMesh::XS->new;
my $m2 = Slic3r::TriangleMesh->new;
$m2->ReadFromPerl($cube->{vertices}, $cube->{facets});
$m2->repair;
$m->merge($m2);
@ -72,7 +74,7 @@ my $cube = {
}
{
my $m = Slic3r::TriangleMesh::XS->new;
my $m = Slic3r::TriangleMesh->new;
$m->ReadFromPerl($cube->{vertices}, $cube->{facets});
$m->repair;
my @z = (2,4,8,6,8,10,12,14,16,18,20);

4
xs/xsp/TriangleMesh.xsp
View File

@ -5,7 +5,7 @@
#include "TriangleMesh.hpp"
%}
%name{Slic3r::TriangleMesh::XS} class TriangleMesh {
%name{Slic3r::TriangleMesh} class TriangleMesh {
TriangleMesh();
~TriangleMesh();
TriangleMesh* clone()
@ -127,7 +127,7 @@ TriangleMesh::slice(z)
%}
};
%package{Slic3r::TriangleMesh::XS};
%package{Slic3r::TriangleMesh};
%{
PROTOTYPES: DISABLE