mirror of
git://projects.qi-hardware.com/ben-scans.git
synced 2024-11-22 09:30:38 +02:00
f3e7c1ec73
- solidify/face.h (struct matrix), solidify/face.c (read_file): also record the face's center - solidify/overlap.c (point): reference faces to the screen center - solidify/overlap.c (point): use correct model coordinates for z0 calculation
142 lines
2.7 KiB
C
142 lines
2.7 KiB
C
/*
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* face.c - Data structure and handling of one face of a part
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*
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* Written 2010 by Werner Almesberger
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* Copyright 2010 by Werner Almesberger
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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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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <math.h>
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#include <fcntl.h>
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#include <sys/wait.h>
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#include "util.h"
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#include "array.h"
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#include "histo.h"
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#include "face.h"
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#define CACHE_DIR ".cache"
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static struct face *read_file(const char *name)
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{
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FILE *file;
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struct face *f;
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struct histo *h;
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float x, y, z;
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int xi, yi, zi;
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if (!strcmp(name, "-")) {
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file = stdin;
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} else {
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int len;
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len = strlen(name);
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if (len > 4 && !strcmp(name+len-4, ".bz2")) {
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char tmp[1000]; /* @@@ enough */
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sprintf(tmp, "bzcat \"%s\"", name);
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file = popen(tmp, "r");
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if (!file) {
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perror(tmp);
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exit(1);
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}
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} else {
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file = fopen(name, "r");
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if (!file) {
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perror(name);
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exit(1);
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}
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}
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}
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f = alloc_type(struct face);
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f->a = new_array();
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while (fscanf(file, "%f,%f,%f\r\n", &x, &y, &z) == 3) {
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/* @@@ hack - should auto-scale */
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xi = round(x*10.0);
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yi = round(y*10.0);
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zi = round(z*40.0);
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set(f->a, xi, yi, zi);
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}
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if (file != stdin)
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(void) fclose(file);
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f->sx = f->a->max_x-f->a->min_x+1;
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f->sy = f->a->max_y-f->a->min_y+1;
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f->cx = (f->a->min_x+f->a->max_x)/2;
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f->cy = (f->a->min_y+f->a->max_y)/2;
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h = make_histo(f->a);
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f->z_ref = f->a->min_z+median(h);
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free_histo(h);
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f->fx = f->fy = 0;
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f->m.a[0][0] = f->m.a[1][1] = 1;
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f->m.a[0][1] = f->m.a[1][0] = 0;
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f->m.b[0] = f->m.b[1] = 0;
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fprintf(stderr, "%d-%d / %d-%d / %d-%d\n",
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f->a->min_x, f->a->max_x, f->a->min_y, f->a->max_y,
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f->a->min_z, f->a->max_z);
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return f;
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}
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struct face *read_face(const char *name)
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{
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const char *p;
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int cwd;
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struct face *face;
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if (strncmp(name, "http:", 5) && strncmp(name, "https:", 6))
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return read_file(name);
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p = strrchr(name, '/');
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if (!p || !p[1]) {
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fprintf(stderr, "malformed URL: \"%s\"\n", name);
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exit(1);
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}
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cwd = open(".", O_RDONLY);
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if (cwd < 0) {
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perror(".");
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exit(1);
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}
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if (chdir(CACHE_DIR) < 0) {
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perror(CACHE_DIR);
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exit(1);
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}
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if (access(p+1, R_OK) < 0) {
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char tmp[1000]; /* @@@ enough */
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int res;
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sprintf(tmp, "wget '%s'", name);
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res = system(tmp);
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if (res < 0) {
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perror("system");
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exit(1);
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}
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if (!WIFEXITED(res) || WEXITSTATUS(res)) {
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fprintf(stderr, "%s: status %d\n", tmp, res);
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exit(1);
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}
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}
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face = read_file(p+1);
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if (fchdir(cwd) < 0) {
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perror("fchdir");
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exit(1);
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}
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return face;
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}
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