PrusaSlicer-NonPlainar/xs/xsp/TriangleMesh.xsp

%module{Slic3r::XS};
%package{Slic3r::TriangleMesh::XS};

%{
PROTOTYPES: DISABLE

#include <myinit.h>

std::string
hello_world()
  CODE:
    RETVAL = "Hello world!";
  OUTPUT:
    RETVAL

void
stl_repair(input_file, output_file)
    char* input_file;
    char* output_file;
    CODE:
        int i;
        
        stl_file stl_in;
        stl_open(&stl_in, input_file);
        
        // checking exact
        stl_check_facets_exact(&stl_in);
        stl_in.stats.facets_w_1_bad_edge = (stl_in.stats.connected_facets_2_edge - stl_in.stats.connected_facets_3_edge);
        stl_in.stats.facets_w_2_bad_edge = (stl_in.stats.connected_facets_1_edge - stl_in.stats.connected_facets_2_edge);
        stl_in.stats.facets_w_3_bad_edge = (stl_in.stats.number_of_facets - stl_in.stats.connected_facets_1_edge);
        
        // checking nearby
        int last_edges_fixed = 0;
        float tolerance = stl_in.stats.shortest_edge;
        float increment = stl_in.stats.bounding_diameter / 10000.0;
        int iterations = 2;
        if (stl_in.stats.connected_facets_3_edge < stl_in.stats.number_of_facets) {
            for (i = 0; i < iterations; i++) {
                if (stl_in.stats.connected_facets_3_edge < stl_in.stats.number_of_facets) {
                    printf("Checking nearby. Tolerance= %f Iteration=%d of %d...", tolerance, i + 1, iterations);
                    stl_check_facets_nearby(&stl_in, tolerance);
                    printf("  Fixed %d edges.\n", stl_in.stats.edges_fixed - last_edges_fixed);
                    last_edges_fixed = stl_in.stats.edges_fixed;
                    tolerance += increment;
                } else {
                    printf("All facets connected.  No further nearby check necessary.\n");
                    break;
                }
            }
        } else {
            printf("All facets connected.  No nearby check necessary.\n");
	    }
        
        // remove_unconnected
        if (stl_in.stats.connected_facets_3_edge <  stl_in.stats.number_of_facets) {
            printf("Removing unconnected facets...\n");
            stl_remove_unconnected_facets(&stl_in);
        } else
	        printf("No unconnected need to be removed.\n");
        
        // fill_holes
        if (stl_in.stats.connected_facets_3_edge < stl_in.stats.number_of_facets) {
            printf("Filling holes...\n");
            stl_fill_holes(&stl_in);
        } else
	        printf("No holes need to be filled.\n");
        
        // normal_directions
        printf("Checking normal directions...\n");
        stl_fix_normal_directions(&stl_in);
        
        // normal_values
        printf("Checking normal values...\n");
        stl_fix_normal_values(&stl_in);
        
        // write STL
        //stl_write_ascii(&stl_in, output_file, (char*)"Repaired by Slic3r + ADMesh");
        
        stl_generate_shared_vertices(&stl_in);
        stl_write_obj(&stl_in, output_file);
        
        stl_close(&stl_in);

%}