Ported align_to_origin()

xs/src/TriangleMesh.cpp

@@ -112,4 +112,13 @@ void TriangleMesh::translate(float x, float y, float z)
     stl_translate(&(this->stl), x, y, z);
 }
 
+void TriangleMesh::align_to_origin()
+{
+    this->translate(
+        -(this->stl.stats.min.x),
+        -(this->stl.stats.min.y),
+        -(this->stl.stats.min.z)
+    );
+}
+
 }

xs/src/TriangleMesh.hpp

@@ -17,6 +17,7 @@ class TriangleMesh
     void WriteOBJFile(char* output_file);
     void scale(float factor);
     void translate(float x, float y, float z);
+    void align_to_origin();
     stl_file stl;
 };
 

xs/t/01_trianglemesh.t

@@ -4,7 +4,7 @@ use strict;
 use warnings;
 
 use Slic3r::XS;
-use Test::More tests => 7;
+use Test::More tests => 8;
 
 is Slic3r::TriangleMesh::XS::hello_world(), 'Hello world!',
     'hello world';
@@ -34,6 +34,9 @@ my $cube = {
     
     $m->translate(5,10,0);
     is_deeply $m->vertices->[0], [45,50,0], 'translate';
+    
+    $m->align_to_origin;
+    is_deeply $m->vertices->[2], [0,0,0], 'align_to_origin';
 }
 
 __END__

xs/xsp/TriangleMesh.xsp

@@ -14,6 +14,7 @@
     void WriteOBJFile(char* output_file);
     void scale(float factor);
     void translate(float x, float y, float z);
+    void align_to_origin();
 %{
 
 SV*