/* ADMesh -- process triangulated solid meshes * Copyright (C) 1995, 1996 Anthony D. Martin * Copyright (C) 2013, 2014 several contributors, see AUTHORS * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Questions, comments, suggestions, etc to * https://github.com/admesh/admesh/issues */ #ifndef __admesh_stl__ #define __admesh_stl__ #include #ifdef __cplusplus extern "C" { #endif #define STL_MAX(A,B) ((A)>(B)? (A):(B)) #define STL_MIN(A,B) ((A)<(B)? (A):(B)) #define ABS(X) ((X) < 0 ? -(X) : (X)) #define LABEL_SIZE 80 #define NUM_FACET_SIZE 4 #define HEADER_SIZE 84 #define STL_MIN_FILE_SIZE 284 #define ASCII_LINES_PER_FACET 7 #define SIZEOF_EDGE_SORT 24 typedef struct { float x; float y; float z; } stl_vertex; typedef struct { float x; float y; float z; } stl_normal; typedef char stl_extra[2]; typedef struct { stl_normal normal; stl_vertex vertex[3]; stl_extra extra; } stl_facet; #define SIZEOF_STL_FACET 50 typedef enum {binary, ascii, inmemory} stl_type; typedef struct { stl_vertex p1; stl_vertex p2; int facet_number; } stl_edge; typedef struct stl_hash_edge { unsigned key[6]; int facet_number; int which_edge; struct stl_hash_edge *next; } stl_hash_edge; typedef struct { int neighbor[3]; char which_vertex_not[3]; } stl_neighbors; typedef struct { int vertex[3]; } v_indices_struct; typedef struct { char header[81]; stl_type type; int number_of_facets; stl_vertex max; stl_vertex min; stl_vertex size; float bounding_diameter; float shortest_edge; float volume; unsigned number_of_blocks; int connected_edges; int connected_facets_1_edge; int connected_facets_2_edge; int connected_facets_3_edge; int facets_w_1_bad_edge; int facets_w_2_bad_edge; int facets_w_3_bad_edge; int original_num_facets; int edges_fixed; int degenerate_facets; int facets_removed; int facets_added; int facets_reversed; int backwards_edges; int normals_fixed; int number_of_parts; int malloced; int freed; int facets_malloced; int collisions; int shared_vertices; int shared_malloced; } stl_stats; typedef struct { FILE *fp; stl_facet *facet_start; stl_edge *edge_start; stl_hash_edge **heads; stl_hash_edge *tail; int M; stl_neighbors *neighbors_start; v_indices_struct *v_indices; stl_vertex *v_shared; stl_stats stats; char error; } stl_file; extern void stl_open(stl_file *stl, char *file); extern void stl_close(stl_file *stl); extern void stl_stats_out(stl_file *stl, FILE *file, char *input_file); extern void stl_print_edges(stl_file *stl, FILE *file); extern void stl_print_neighbors(stl_file *stl, char *file); extern void stl_put_little_int(FILE *fp, int value_in); extern void stl_put_little_float(FILE *fp, float value_in); extern void stl_write_ascii(stl_file *stl, const char *file, const char *label); extern void stl_write_binary(stl_file *stl, const char *file, const char *label); extern void stl_write_binary_block(stl_file *stl, FILE *fp); extern void stl_check_facets_exact(stl_file *stl); extern void stl_check_facets_nearby(stl_file *stl, float tolerance); extern void stl_remove_unconnected_facets(stl_file *stl); extern void stl_write_vertex(stl_file *stl, int facet, int vertex); extern void stl_write_facet(stl_file *stl, char *label, int facet); extern void stl_write_edge(stl_file *stl, char *label, stl_hash_edge edge); extern void stl_write_neighbor(stl_file *stl, int facet); extern void stl_write_quad_object(stl_file *stl, char *file); extern void stl_verify_neighbors(stl_file *stl); extern void stl_fill_holes(stl_file *stl); extern void stl_fix_normal_directions(stl_file *stl); extern void stl_fix_normal_values(stl_file *stl); extern void stl_reverse_all_facets(stl_file *stl); extern void stl_translate(stl_file *stl, float x, float y, float z); extern void stl_translate_relative(stl_file *stl, float x, float y, float z); extern void stl_scale_versor(stl_file *stl, float versor[3]); extern void stl_scale(stl_file *stl, float factor); extern void stl_rotate_x(stl_file *stl, float angle); extern void stl_rotate_y(stl_file *stl, float angle); extern void stl_rotate_z(stl_file *stl, float angle); extern void stl_mirror_xy(stl_file *stl); extern void stl_mirror_yz(stl_file *stl); extern void stl_mirror_xz(stl_file *stl); extern void stl_open_merge(stl_file *stl, char *file); extern void stl_invalidate_shared_vertices(stl_file *stl); extern void stl_generate_shared_vertices(stl_file *stl); extern void stl_write_obj(stl_file *stl, char *file); extern void stl_write_off(stl_file *stl, char *file); extern void stl_write_dxf(stl_file *stl, char *file, char *label); extern void stl_write_vrml(stl_file *stl, char *file); extern void stl_calculate_normal(float normal[], stl_facet *facet); extern void stl_normalize_vector(float v[]); extern void stl_calculate_volume(stl_file *stl); extern void stl_repair(stl_file *stl, int fixall_flag, int exact_flag, int tolerance_flag, float tolerance, int increment_flag, float increment, int nearby_flag, int iterations, int remove_unconnected_flag, int fill_holes_flag, int normal_directions_flag, int normal_values_flag, int reverse_all_flag, int verbose_flag); extern void stl_initialize(stl_file *stl); extern void stl_count_facets(stl_file *stl, char *file); extern void stl_allocate(stl_file *stl); extern void stl_read(stl_file *stl, int first_facet, int first); extern void stl_facet_stats(stl_file *stl, stl_facet facet, int first); extern void stl_reallocate(stl_file *stl); extern void stl_add_facet(stl_file *stl, stl_facet *new_facet); extern void stl_get_size(stl_file *stl); extern void stl_clear_error(stl_file *stl); extern int stl_get_error(stl_file *stl); extern void stl_exit_on_error(stl_file *stl); #ifdef __cplusplus } #endif #endif