mirror of
https://github.com/FULU-Foundation/OrcaSlicer-bambulab.git
synced 2026-07-27 03:44:53 +03:00
Include admesh code for STL repair
This commit is contained in:
Alessandro Ranellucci
243
xs/src/admesh/shared.c
Normal file
243
xs/src/admesh/shared.c
Normal file
@@ -0,0 +1,243 @@
|
||||
/* ADMesh -- process triangulated solid meshes
|
||||
* Copyright (C) 1995, 1996 Anthony D. Martin
|
||||
*
|
||||
* 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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||||
*
|
||||
* Questions, comments, suggestions, etc to <amartin@engr.csulb.edu>
|
||||
*/
|
||||
|
||||
#include <cstring>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "stl.h"
|
||||
|
||||
|
||||
void
|
||||
stl_generate_shared_vertices(stl_file *stl)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
int first_facet;
|
||||
int direction;
|
||||
int facet_num;
|
||||
int vnot;
|
||||
int next_edge;
|
||||
int pivot_vertex;
|
||||
int next_facet;
|
||||
int reversed;
|
||||
|
||||
stl->v_indices = (v_indices_struct*)
|
||||
calloc(stl->stats.number_of_facets, sizeof(v_indices_struct));
|
||||
if(stl->v_indices == NULL) perror("stl_generate_shared_vertices");
|
||||
stl->v_shared = (stl_vertex*)
|
||||
calloc((stl->stats.number_of_facets / 2), sizeof(stl_vertex));
|
||||
if(stl->v_shared == NULL) perror("stl_generate_shared_vertices");
|
||||
stl->stats.shared_malloced = stl->stats.number_of_facets / 2;
|
||||
stl->stats.shared_vertices = 0;
|
||||
|
||||
for(i = 0; i < stl->stats.number_of_facets; i++)
|
||||
{
|
||||
stl->v_indices[i].vertex[0] = -1;
|
||||
stl->v_indices[i].vertex[1] = -1;
|
||||
stl->v_indices[i].vertex[2] = -1;
|
||||
}
|
||||
|
||||
|
||||
for(i = 0; i < stl->stats.number_of_facets; i++)
|
||||
{
|
||||
first_facet = i;
|
||||
for(j = 0; j < 3; j++)
|
||||
{
|
||||
if(stl->v_indices[i].vertex[j] != -1)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
if(stl->stats.shared_vertices == stl->stats.shared_malloced)
|
||||
{
|
||||
stl->stats.shared_malloced += 1024;
|
||||
stl->v_shared = (stl_vertex*)realloc(stl->v_shared,
|
||||
stl->stats.shared_malloced * sizeof(stl_vertex));
|
||||
if(stl->v_shared == NULL) perror("stl_generate_shared_vertices");
|
||||
}
|
||||
|
||||
stl->v_shared[stl->stats.shared_vertices] =
|
||||
stl->facet_start[i].vertex[j];
|
||||
|
||||
direction = 0;
|
||||
reversed = 0;
|
||||
facet_num = i;
|
||||
vnot = (j + 2) % 3;
|
||||
|
||||
for(;;)
|
||||
{
|
||||
if(vnot > 2)
|
||||
{
|
||||
if(direction == 0)
|
||||
{
|
||||
pivot_vertex = (vnot + 2) % 3;
|
||||
next_edge = pivot_vertex;
|
||||
direction = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
pivot_vertex = (vnot + 1) % 3;
|
||||
next_edge = vnot % 3;
|
||||
direction = 0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if(direction == 0)
|
||||
{
|
||||
pivot_vertex = (vnot + 1) % 3;
|
||||
next_edge = vnot;
|
||||
}
|
||||
else
|
||||
{
|
||||
pivot_vertex = (vnot + 2) % 3;
|
||||
next_edge = pivot_vertex;
|
||||
}
|
||||
}
|
||||
stl->v_indices[facet_num].vertex[pivot_vertex] =
|
||||
stl->stats.shared_vertices;
|
||||
|
||||
next_facet = stl->neighbors_start[facet_num].neighbor[next_edge];
|
||||
if(next_facet == -1)
|
||||
{
|
||||
if(reversed)
|
||||
{
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
direction = 1;
|
||||
vnot = (j + 1) % 3;
|
||||
reversed = 1;
|
||||
facet_num = first_facet;
|
||||
}
|
||||
}
|
||||
else if(next_facet != first_facet)
|
||||
{
|
||||
vnot = stl->neighbors_start[facet_num].
|
||||
which_vertex_not[next_edge];
|
||||
facet_num = next_facet;
|
||||
}
|
||||
else
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
stl->stats.shared_vertices += 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
stl_write_off(stl_file *stl, char *file)
|
||||
{
|
||||
int i;
|
||||
FILE *fp;
|
||||
char *error_msg;
|
||||
|
||||
|
||||
/* Open the file */
|
||||
fp = fopen(file, "w");
|
||||
if(fp == NULL)
|
||||
{
|
||||
error_msg = (char*)
|
||||
malloc(81 + strlen(file)); /* Allow 80 chars+file size for message */
|
||||
sprintf(error_msg, "stl_write_ascii: Couldn't open %s for writing",
|
||||
file);
|
||||
perror(error_msg);
|
||||
free(error_msg);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
fprintf(fp, "OFF\n");
|
||||
fprintf(fp, "%d %d 0\n",
|
||||
stl->stats.shared_vertices, stl->stats.number_of_facets);
|
||||
|
||||
for(i = 0; i < stl->stats.shared_vertices; i++)
|
||||
{
|
||||
fprintf(fp, "\t%f %f %f\n",
|
||||
stl->v_shared[i].x, stl->v_shared[i].y, stl->v_shared[i].z);
|
||||
}
|
||||
for(i = 0; i < stl->stats.number_of_facets; i++)
|
||||
{
|
||||
fprintf(fp, "\t3 %d %d %d\n", stl->v_indices[i].vertex[0],
|
||||
stl->v_indices[i].vertex[1], stl->v_indices[i].vertex[2]);
|
||||
}
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
void
|
||||
stl_write_vrml(stl_file *stl, char *file)
|
||||
{
|
||||
int i;
|
||||
FILE *fp;
|
||||
char *error_msg;
|
||||
|
||||
|
||||
/* Open the file */
|
||||
fp = fopen(file, "w");
|
||||
if(fp == NULL)
|
||||
{
|
||||
error_msg = (char*)
|
||||
malloc(81 + strlen(file)); /* Allow 80 chars+file size for message */
|
||||
sprintf(error_msg, "stl_write_ascii: Couldn't open %s for writing",
|
||||
file);
|
||||
perror(error_msg);
|
||||
free(error_msg);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
fprintf(fp, "#VRML V1.0 ascii\n\n");
|
||||
fprintf(fp, "Separator {\n");
|
||||
fprintf(fp, "\tDEF STLShape ShapeHints {\n");
|
||||
fprintf(fp, "\t\tvertexOrdering COUNTERCLOCKWISE\n");
|
||||
fprintf(fp, "\t\tfaceType CONVEX\n");
|
||||
fprintf(fp, "\t\tshapeType SOLID\n");
|
||||
fprintf(fp, "\t\tcreaseAngle 0.0\n");
|
||||
fprintf(fp, "\t}\n");
|
||||
fprintf(fp, "\tDEF STLModel Separator {\n");
|
||||
fprintf(fp, "\t\tDEF STLColor Material {\n");
|
||||
fprintf(fp, "\t\t\temissiveColor 0.700000 0.700000 0.000000\n");
|
||||
fprintf(fp, "\t\t}\n");
|
||||
fprintf(fp, "\t\tDEF STLVertices Coordinate3 {\n");
|
||||
fprintf(fp, "\t\t\tpoint [\n");
|
||||
|
||||
for(i = 0; i < (stl->stats.shared_vertices - 1); i++)
|
||||
{
|
||||
fprintf(fp, "\t\t\t\t%f %f %f,\n",
|
||||
stl->v_shared[i].x, stl->v_shared[i].y, stl->v_shared[i].z);
|
||||
}
|
||||
fprintf(fp, "\t\t\t\t%f %f %f]\n",
|
||||
stl->v_shared[i].x, stl->v_shared[i].y, stl->v_shared[i].z);
|
||||
fprintf(fp, "\t\t}\n");
|
||||
fprintf(fp, "\t\tDEF STLTriangles IndexedFaceSet {\n");
|
||||
fprintf(fp, "\t\t\tcoordIndex [\n");
|
||||
|
||||
for(i = 0; i < (stl->stats.number_of_facets - 1); i++)
|
||||
{
|
||||
fprintf(fp, "\t\t\t\t%d, %d, %d, -1,\n", stl->v_indices[i].vertex[0],
|
||||
stl->v_indices[i].vertex[1], stl->v_indices[i].vertex[2]);
|
||||
}
|
||||
fprintf(fp, "\t\t\t\t%d, %d, %d, -1]\n", stl->v_indices[i].vertex[0],
|
||||
stl->v_indices[i].vertex[1], stl->v_indices[i].vertex[2]);
|
||||
fprintf(fp, "\t\t}\n");
|
||||
fprintf(fp, "\t}\n");
|
||||
fprintf(fp, "}\n");
|
||||
fclose(fp);
|
||||
}
|
||||
Reference in New Issue
Block a user