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plane around center works; need to inset

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This commit is contained in:
Trammell Hudson 2015-02-14 20:27:35 -05:00
parent 010231eed2
commit ad35a5966e
1 changed files with 19 additions and 24 deletions
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43
corners.c
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@ -20,7 +20,7 @@ main(void)
stl_3d_t * const stl = stl_3d_parse(STDIN_FILENO); stl_3d_t * const stl = stl_3d_parse(STDIN_FILENO);
if (!stl) if (!stl)
return EXIT_FAILURE; return EXIT_FAILURE;
const double thickness = 8; const double thickness = 6;
// for each vertex, find the coplanar triangles // for each vertex, find the coplanar triangles
// \todo: do coplanar bits // \todo: do coplanar bits
@ -30,8 +30,10 @@ main(void)
const v3_t origin = v->p; const v3_t origin = v->p;
printf("// vertex %d\n" printf("// vertex %d\n"
"translate([%f,%f,%f]) {\n" "//translate([%f,%f,%f])\n"
"sphere(r=20);\n", "//render() difference()\n"
"{\n"
"//sphere(r=20);\n",
i, origin.p[0], origin.p[1], origin.p[2]); i, origin.p[0], origin.p[1], origin.p[2]);
@ -52,24 +54,25 @@ main(void)
if (v->face_num[j] == 2) if (v->face_num[j] == 2)
n = v3_cross(v0, v1); n = v3_cross(v0, v1);
n = v3_scale(n, thickness/v3_mag(n)/2); n = v3_scale(n, (thickness+1)/v3_mag(n)/2);
v3_t n2 = v3_scale(n, 1/v3_mag(n));
v0 = v3_add(v0, n); v3_t v3 = v3_add(v0, n);
v1 = v3_add(v1, n); v3_t v4 = v3_add(v1, n);
v2 = v3_add(v2, n); v3_t v5 = v3_add(v2, n);
v3_t v3 = v3_sub(v0, n); v0 = v3_sub(v0, n);
v3_t v4 = v3_sub(v1, n); v1 = v3_sub(v1, n);
v3_t v5 = v3_sub(v2, n); v2 = v3_sub(v2, n);
printf("polyhedron(\n" printf("polyhedron(\n"
"points=[\n" "points=[\n"
"[%f,%f,%f],[%f,%f,%f],[%f,%f,%f],\n" "[%f,%f,%f],[%f,%f,%f],[%f,%f,%f],\n"
"[%f,%f,%f],[%f,%f,%f],[%f,%f,%f],\n" "[%f,%f,%f],[%f,%f,%f],[%f,%f,%f],\n"
"], faces = [" "], faces = ["
" [0,2,1], [3,4,5]," " [0,1,2], [3,5,4],"
" [0,3,2], [2,3,5]," " [0,2,3], [2,5,3],"
" [0,4,3], [0,1,4]," " [0,3,4], [0,4,1],"
" [1,5,4], [1,2,5]," " [1,4,5], [1,5,2],"
"]);\n", "]);\n",
v0.p[0], v0.p[1], v0.p[2], v0.p[0], v0.p[1], v0.p[2],
v1.p[0], v1.p[1], v1.p[2], v1.p[0], v1.p[1], v1.p[2],
@ -79,19 +82,11 @@ main(void)
v5.p[0], v5.p[1], v5.p[2] v5.p[0], v5.p[1], v5.p[2]
); );
/* //break; // only do one right now
fprintf(stderr, "\t%d: %d:%f,%d:%f,%d:%f\n",
f - stl->face,
f->face[0] ? f->face[0] - stl->face : -1, f->angle[0],
f->face[1] ? f->face[1] - stl->face : -1, f->angle[1],
f->face[2] ? f->face[2] - stl->face : -1, f->angle[2]
);
*/
break; // only do one right now
} }
printf("}\n"); printf("}\n");
break; // only do one right now if (i == 0) break; // only do one right now
} }
return 0; return 0;