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papercraft
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quiet build process

This commit is contained in:
Trammell Hudson 2015-01-03 18:54:44 +01:00
parent 8dad45d944
commit d52f024c3d
1 changed files with 25 additions and 6 deletions
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31
unfold.c
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@ -15,6 +15,8 @@
#define M_PI 3.1415926535897932384
#endif
static int debug = 0;
typedef struct
{
char header[80];
@ -256,7 +258,7 @@ get_line_intersection(
if (s > EPS && s < 1-EPS && t > EPS && t < 1-EPS)
{
fprintf(stderr, "collision: %f,%f->%f,%f %f,%f->%f,%f == %f,%f\n",
if(debug) fprintf(stderr, "collision: %f,%f->%f,%f %f,%f->%f,%f == %f,%f\n",
p0_x, p0_y,
p1_x, p1_y,
p2_x, p2_y,
@ -388,7 +390,7 @@ poly_build(
}
//fprintf(stderr, "%p: adding to poly\n", f);
if (debug) fprintf(stderr, "%p: adding to poly\n", f);
for(int pass = 0 ; pass < 2 ; pass++)
{
@ -564,7 +566,7 @@ coplanar_check(
float dot = v3_dot(dx31, cross);
int check = -EPS < dot && dot < +EPS;
//fprintf( stderr, "%p %p %s: %f\n", f1, f2, check ? "yes" : "no", dot);
if (debug) fprintf( stderr, "%p %p %s: %f\n", f1, f2, check ? "yes" : "no", dot);
return (int) dot;
}
@ -591,7 +593,8 @@ stl2faces(
f->sides[0] = v3_len(&stl->p[0], &stl->p[1]);
f->sides[1] = v3_len(&stl->p[1], &stl->p[2]);
f->sides[2] = v3_len(&stl->p[2], &stl->p[0]);
//fprintf(stderr, "%p %f %f %f\n", f, f->sides[0], f->sides[1], f->sides[2]);
if (debug) fprintf(stderr, "%p %f %f %f\n",
f, f->sides[0], f->sides[1], f->sides[2]);
}
// look to see if there is a matching point
@ -683,6 +686,7 @@ int main(void)
else
offset = lrand48();
fprintf(stderr, "Starting at poly %d\n", offset % num_triangles);
int group_count = 0;
for (int i = 0 ; i < num_triangles ; i++)
{
@ -700,21 +704,36 @@ int main(void)
poly_min[0] = poly_min[1] = 0;
poly_max[0] = poly_max[1] = 0;
fprintf(stderr, "\n\n\n****** New group %p\n", poly_root);
poly_t * iter = &g;
int poly_count = 0;
group_count++;
if (debug) fprintf(stderr, "****** %d: New group %p\n",
group_count, poly_root);
while (iter)
{
poly_build(iter);
iter = iter->work_next;
poly_count++;
}
fprintf(stderr, "group %d: %d triangles\n",
group_count, poly_count);
// todo: walk the generated polygon and attempt to add tabs
// to edges where they fit
// offset the poly so that it doesn't overlap the ones
// we've already generated. only shift in Y.
float off_x = last_x - poly_min[0];
float off_y = last_y - poly_min[1];
last_y = off_y + poly_max[1];
// \todo: generate lots of poly sets before we print
// to find a minimal set. perhaps vary the search rules?
printf("<g transform=\"translate(%f %f)\">\n", off_x, off_y);
poly_print(&g);
printf("</g>\n");