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