コード例 #1
0
ファイル: bottess.c プロジェクト: kanzure/brlcad
union tree *
evaluate(union tree *tr, const struct rt_tess_tol *ttol, const struct bn_tol *tol)
{
    RT_CK_TREE(tr);

    switch (tr->tr_op) {
	case OP_NOP:
	    return tr;
	case OP_NMG_TESS:
	    /* ugh, keep it as nmg_tess and just shove the rt_bot_internal ptr
	     * in as nmgregion. :/ Also, only doing the first shell of the first
	     * model. Primitives should only provide a single shell, right? */
	    {
		struct rt_db_internal ip;
		struct nmgregion *nmgr = BU_LIST_FIRST(nmgregion, &tr->tr_d.td_r->m_p->r_hd);
		/* the bot temporary format may be unnecessary if we can walk
		 * the nmg shells and generate soup from them directly. */
		struct rt_bot_internal *bot = nmg_bot(BU_LIST_FIRST(shell, &nmgr->s_hd), tol);

		/* causes a crash.
		   nmg_kr(nmgr);
		   free(nmgr);
		*/

		tr->tr_d.td_r->m_p = (struct model *)bot2soup(bot, tol);
		SOUP_CKMAG((struct soup_s *)tr->tr_d.td_r->m_p);

		/* fill in a db_internal with our new bot so we can free it */
		RT_DB_INTERNAL_INIT(&ip);
		ip.idb_major_type = DB5_MAJORTYPE_BRLCAD;
		ip.idb_minor_type = ID_BOT;
		ip.idb_meth = &OBJ[ID_BOT];
		ip.idb_ptr = bot;
		ip.idb_meth->ft_ifree(&ip);
	    }
	    return tr;
	case OP_UNION:
	case OP_INTERSECT:
	case OP_SUBTRACT:
	    RT_CK_TREE(tr->tr_b.tb_left);
	    RT_CK_TREE(tr->tr_b.tb_right);
	    tr->tr_b.tb_left = evaluate(tr->tr_b.tb_left, ttol, tol);
	    tr->tr_b.tb_right = evaluate(tr->tr_b.tb_right, ttol, tol);
	    RT_CK_TREE(tr->tr_b.tb_left);
	    RT_CK_TREE(tr->tr_b.tb_right);
	    SOUP_CKMAG(tr->tr_b.tb_left->tr_d.td_r->m_p);
	    SOUP_CKMAG(tr->tr_b.tb_right->tr_d.td_r->m_p);
	    split_faces(tr->tr_b.tb_left, tr->tr_b.tb_right, tol);
	    RT_CK_TREE(tr->tr_b.tb_left);
	    RT_CK_TREE(tr->tr_b.tb_right);
	    SOUP_CKMAG(tr->tr_b.tb_left->tr_d.td_r->m_p);
	    SOUP_CKMAG(tr->tr_b.tb_right->tr_d.td_r->m_p);
	    break;
	default:
	    bu_bomb("bottess evaluate(): bad op (first pass)\n");
    }

    switch (tr->tr_op) {
	case OP_UNION:
	    return compose(tr->tr_b.tb_left, tr->tr_b.tb_right, OUTSIDE, SAME, OUTSIDE);
	case OP_INTERSECT:
	    return compose(tr->tr_b.tb_left, tr->tr_b.tb_right, INSIDE, SAME, INSIDE);
	case OP_SUBTRACT:
	    return invert(compose(tr->tr_b.tb_left, invert(tr->tr_b.tb_right), OUTSIDE, OPPOSITE, INSIDE));
	default:
	    bu_bomb("bottess evaluate(): bad op (second pass, CSG)\n");
    }
    bu_bomb("Got somewhere I shouldn't have\n");
    return NULL;
}
コード例 #2
0
ファイル: bot_fuse.c プロジェクト: kanzure/brlcad
int
ged_bot_fuse(struct ged *gedp, int argc, const char **argv)
{
    struct directory *old_dp, *new_dp;
    struct rt_db_internal intern, intern2;
    struct rt_bot_internal *bot;
    int count=0;
    static const char *usage = "new_bot old_bot";

    struct model *m;
    struct nmgregion *r;
    int ret, c, i;
    struct bn_tol *tol = &gedp->ged_wdbp->wdb_tol;
    int total = 0;
    volatile int out_type = 0; /* open edge output type: 0 = none, 1 = show, 2 = plot */
    size_t open_cnt;
    struct bu_vls name_prefix = BU_VLS_INIT_ZERO;

    /* bu_getopt() options */
    static const char *bot_fuse_options = "sp";
    static const char *bot_fuse_options_str = "[-s|-p]";

    GED_CHECK_DATABASE_OPEN(gedp, GED_ERROR);
    GED_CHECK_READ_ONLY(gedp, GED_ERROR);
    GED_CHECK_ARGC_GT_0(gedp, argc, GED_ERROR);

    /* initialize result */
    bu_vls_trunc(gedp->ged_result_str, 0);

    /* must be wanting help */
    if (argc != 3 && argc != 4) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s %s", argv[0], bot_fuse_options_str, usage);
	return GED_HELP;
    }

    /* Turn off getopt's error messages */
    bu_opterr = 0;
    bu_optind = 1;

    /* get all the option flags from the command line */
    while ((c=bu_getopt(argc, (char **)argv, bot_fuse_options)) != -1) {
	switch (c) {
	    case 's':
		{
		    out_type = 1; /* show open edges */
		    break;
		}
	    case 'p':
		{
		    out_type = 2; /* plot open edges */
		    break;
		}
	    default :
		{
		    bu_vls_printf(gedp->ged_result_str, "Unknown option: '%c'", c);
		    return GED_HELP;
		}
	}
    }

    i = argc - 2;

    bu_log("%s: start\n", argv[0]);

    GED_DB_LOOKUP(gedp, old_dp, argv[i+1], LOOKUP_NOISY, GED_ERROR & GED_QUIET);
    GED_DB_GET_INTERNAL(gedp, &intern, old_dp, bn_mat_identity, &rt_uniresource, GED_ERROR);

    if (intern.idb_major_type != DB5_MAJORTYPE_BRLCAD || intern.idb_minor_type != DB5_MINORTYPE_BRLCAD_BOT) {
	bu_vls_printf(gedp->ged_result_str, "%s: %s is not a BOT solid!\n", argv[0], argv[i+1]);
	return GED_ERROR;
    }

    /* create nmg model structure */
    m = nmg_mm();

    /* place bot in nmg structure */
    bu_log("%s: running rt_bot_tess\n", argv[0]);
    ret = rt_bot_tess(&r, m, &intern, &gedp->ged_wdbp->wdb_ttol, tol);

    /* free internal representation of original bot */
    rt_db_free_internal(&intern);

    if (ret != 0) {
	bu_vls_printf(gedp->ged_result_str, "%s: %s fuse failed (1).\n", argv[0], argv[i+1]);
	nmg_km(m);
	return GED_ERROR;
    }

    total = 0;

    /* Step 1 -- the vertices. */
    bu_log("%s: running nmg_vertex_fuse\n", argv[0]);
    count = nmg_vertex_fuse(&m->magic, tol);
    total += count;
    bu_log("%s: %s, %d vertex fused\n", argv[0], argv[i+1], count);

    /* Step 1.5 -- break edges on vertices, before fusing edges */
    bu_log("%s: running nmg_break_e_on_v\n", argv[0]);
    count = nmg_break_e_on_v(&m->magic, tol);
    total += count;
    bu_log("%s: %s, %d broke 'e' on 'v'\n", argv[0], argv[i+1], count);

    if (total) {
	struct nmgregion *r2;
	struct shell *s;

	bu_log("%s: running nmg_make_faces_within_tol\n", argv[0]);

	/* vertices and/or edges have been moved,
	 * may have created out-of-tolerance faces
	 */

	for (BU_LIST_FOR(r2, nmgregion, &m->r_hd)) {
	    for (BU_LIST_FOR(s, shell, &r2->s_hd))
		nmg_make_faces_within_tol(s, tol);
	}
    }

    /* Step 2 -- the face geometry */
    bu_log("%s: running nmg_model_face_fuse\n", argv[0]);
    count = nmg_model_face_fuse(m, tol);
    total += count;
    bu_log("%s: %s, %d faces fused\n", argv[0], argv[i+1], count);

    /* Step 3 -- edges */
    bu_log("%s: running nmg_edge_fuse\n", argv[0]);
    count = nmg_edge_fuse(&m->magic, tol);
    total += count;

    bu_log("%s: %s, %d edges fused\n", argv[0], argv[i+1], count);

    bu_log("%s: %s, %d total fused\n", argv[0], argv[i+1], total);

    if (!BU_SETJUMP) {
	/* try */

	/* convert the nmg model back into a bot */
	bot = nmg_bot(BU_LIST_FIRST(shell, &r->s_hd), tol);

	bu_vls_sprintf(&name_prefix, "open_edges.%s", argv[i]);
	bu_log("%s: running show_dangling_edges\n", argv[0]);
	open_cnt = show_dangling_edges(gedp, &m->magic, bu_vls_addr(&name_prefix), out_type);
	bu_log("%s: WARNING %ld open edges, new BOT may be invalid!!!\n", argv[0], open_cnt);
	bu_vls_free(&name_prefix);

	/* free the nmg model structure */
	nmg_km(m);
    } else {
	/* catch */
	BU_UNSETJUMP;
	bu_vls_printf(gedp->ged_result_str, "%s: %s fuse failed (2).\n", argv[0], argv[i+1]);
	return GED_ERROR;
    } BU_UNSETJUMP;

    RT_DB_INTERNAL_INIT(&intern2);
    intern2.idb_major_type = DB5_MAJORTYPE_BRLCAD;
    intern2.idb_type = ID_BOT;
    intern2.idb_meth = &OBJ[ID_BOT];
    intern2.idb_ptr = (void *)bot;

    GED_DB_DIRADD(gedp, new_dp, argv[i], RT_DIR_PHONY_ADDR, 0, RT_DIR_SOLID, (void *)&intern2.idb_type, GED_ERROR);
    GED_DB_PUT_INTERNAL(gedp, new_dp, &intern2, &rt_uniresource, GED_ERROR);

    bu_log("%s: Created new BOT (%s)\n", argv[0], argv[i]);
    bu_log("%s: Done.\n", argv[0]);

    return GED_OK;
}
コード例 #3
0
int
ged_facetize(struct ged *gedp, int argc, const char *argv[])
{
    int i;
    int c;
    char *newname;
    struct rt_db_internal intern;
    struct directory *dp;
    int failed;
    int nmg_use_tnurbs = 0;
    struct db_tree_state init_state;
    struct db_i *dbip;
    union tree *facetize_tree;
    struct model *nmg_model;

    static const char *usage = "[ [-P] | [-n] [-t] [-T] ] new_obj old_obj [old_obj2 old_obj3 ...]";

    /* static due to jumping */
    static int triangulate;
    static int make_bot;
    static int marching_cube;
    static int screened_poisson;

    GED_CHECK_DATABASE_OPEN(gedp, GED_ERROR);
    GED_CHECK_READ_ONLY(gedp, GED_ERROR);
    GED_CHECK_ARGC_GT_0(gedp, argc, GED_ERROR);

    /* initialize result */
    bu_vls_trunc(gedp->ged_result_str, 0);

    /* must be wanting help */
    if (argc == 1) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_HELP;
    }

    if (argc < 3) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_ERROR;
    }

    dbip = gedp->ged_wdbp->dbip;
    RT_CHECK_DBI(dbip);

    db_init_db_tree_state(&init_state, dbip, gedp->ged_wdbp->wdb_resp);

    /* Establish tolerances */
    init_state.ts_ttol = &gedp->ged_wdbp->wdb_ttol;
    init_state.ts_tol = &gedp->ged_wdbp->wdb_tol;

    /* Initial values for options, must be reset each time */
    marching_cube = 0;
    screened_poisson = 0;
    triangulate = 0;
    make_bot = 1;

    /* Parse options. */
    bu_optind = 1;		/* re-init bu_getopt() */
    while ((c=bu_getopt(argc, (char * const *)argv, "mntTP")) != -1) {
	switch (c) {
	    case 'm':
		marching_cube = triangulate = 1;
		/* no break, marching cubes assumes nmg for now */
	    case 'n':
		make_bot = 0;
		break;
	    case 'P':
		screened_poisson = 1;
		triangulate = 1;
		make_bot = 1;
		break;
	    case 'T':
		triangulate = 1;
		break;
	    case 't':
		nmg_use_tnurbs = 1;
		break;
	    default: {
		bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
		return GED_ERROR;
	    }
	}
    }
    argc -= bu_optind;
    argv += bu_optind;
    if (argc < 0) {
	bu_vls_printf(gedp->ged_result_str, "facetize: missing argument\n");
	return GED_ERROR;
    }

    if (screened_poisson && (marching_cube || !make_bot || nmg_use_tnurbs)) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_ERROR;
    }

    newname = (char *)argv[0];
    argv++;
    argc--;
    if (argc < 0) {
	bu_vls_printf(gedp->ged_result_str, "facetize: missing argument\n");
	return GED_ERROR;
    }

    if (db_lookup(dbip, newname, LOOKUP_QUIET) != RT_DIR_NULL) {
	bu_vls_printf(gedp->ged_result_str, "error: solid '%s' already exists, aborting\n", newname);
	return GED_ERROR;
    }

    if (screened_poisson) {

	struct rt_bot_internal *bot;

	BU_ALLOC(bot, struct rt_bot_internal);
	bot->magic = RT_BOT_INTERNAL_MAGIC;
	bot->mode = RT_BOT_SOLID;
	bot->orientation = RT_BOT_UNORIENTED;
	bot->thickness = (fastf_t *)NULL;
	bot->face_mode = (struct bu_bitv *)NULL;

	/* TODO - generate point cloud, then mesh - need to see the input points for debugging */
	(void)rt_generate_mesh(&(bot->faces), (int *)&(bot->num_faces), (point_t **)&(bot->vertices), (int *)&(bot->num_vertices),
		dbip, argv[0], 15);

	/* Export BOT as a new solid */
	RT_DB_INTERNAL_INIT(&intern);
	intern.idb_major_type = DB5_MAJORTYPE_BRLCAD;
	intern.idb_type = ID_BOT;
	intern.idb_meth = &OBJ[ID_BOT];
	intern.idb_ptr = (void *) bot;

    } else {

	bu_vls_printf(gedp->ged_result_str,
		"facetize:  tessellating primitives with tolerances a=%g, r=%g, n=%g\n",
		gedp->ged_wdbp->wdb_ttol.abs, gedp->ged_wdbp->wdb_ttol.rel, gedp->ged_wdbp->wdb_ttol.norm);

	facetize_tree = (union tree *)0;
	nmg_model = nmg_mm();
	init_state.ts_m = &nmg_model;

	i = db_walk_tree(dbip, argc, (const char **)argv,
		1,
		&init_state,
		0,			/* take all regions */
		facetize_region_end,
		nmg_use_tnurbs ?
		nmg_booltree_leaf_tnurb :
		nmg_booltree_leaf_tess,
		(void *)&facetize_tree
		);


	if (i < 0) {
	    bu_vls_printf(gedp->ged_result_str, "facetize: error in db_walk_tree()\n");
	    /* Destroy NMG */
	    nmg_km(nmg_model);
	    return GED_ERROR;
	}

	if (facetize_tree) {
	    /* Now, evaluate the boolean tree into ONE region */
	    bu_vls_printf(gedp->ged_result_str, "facetize:  evaluating boolean expressions\n");

	    if (!BU_SETJUMP) {
		/* try */
		failed = nmg_boolean(facetize_tree, nmg_model, &gedp->ged_wdbp->wdb_tol, &rt_uniresource);
	    } else {
		/* catch */
		BU_UNSETJUMP;
		bu_vls_printf(gedp->ged_result_str, "WARNING: facetization failed!!!\n");
		db_free_tree(facetize_tree, &rt_uniresource);
		facetize_tree = (union tree *)NULL;
		nmg_km(nmg_model);
		nmg_model = (struct model *)NULL;
		return GED_ERROR;
	    } BU_UNSETJUMP;

	} else
	    failed = 1;

	if (failed) {
	    bu_vls_printf(gedp->ged_result_str, "facetize:  no resulting region, aborting\n");
	    db_free_tree(facetize_tree, &rt_uniresource);
	    facetize_tree = (union tree *)NULL;
	    nmg_km(nmg_model);
	    nmg_model = (struct model *)NULL;
	    return GED_ERROR;
	}
	/* New region remains part of this nmg "model" */
	NMG_CK_REGION(facetize_tree->tr_d.td_r);
	bu_vls_printf(gedp->ged_result_str, "facetize:  %s\n", facetize_tree->tr_d.td_name);

	/* Triangulate model, if requested */
	if (triangulate && !make_bot) {
	    bu_vls_printf(gedp->ged_result_str, "facetize:  triangulating resulting object\n");
	    if (!BU_SETJUMP) {
		/* try */
		if (marching_cube == 1)
		    nmg_triangulate_model_mc(nmg_model, &gedp->ged_wdbp->wdb_tol);
		else
		    nmg_triangulate_model(nmg_model, &gedp->ged_wdbp->wdb_tol);
	    } else {
		/* catch */
		BU_UNSETJUMP;
		bu_vls_printf(gedp->ged_result_str, "WARNING: triangulation failed!!!\n");
		db_free_tree(facetize_tree, &rt_uniresource);
		facetize_tree = (union tree *)NULL;
		nmg_km(nmg_model);
		nmg_model = (struct model *)NULL;
		return GED_ERROR;
	    } BU_UNSETJUMP;
	}

	if (make_bot) {
	    struct rt_bot_internal *bot;
	    struct nmgregion *r;
	    struct shell *s;

	    bu_vls_printf(gedp->ged_result_str, "facetize:  converting to BOT format\n");

	    /* WTF, FIXME: this is only dumping the first shell of the first region */

	    r = BU_LIST_FIRST(nmgregion, &nmg_model->r_hd);
	    if (r && BU_LIST_NEXT(nmgregion, &r->l) !=  (struct nmgregion *)&nmg_model->r_hd)
		bu_vls_printf(gedp->ged_result_str, "WARNING: model has more than one region, only facetizing the first\n");

	    s = BU_LIST_FIRST(shell, &r->s_hd);
	    if (s && BU_LIST_NEXT(shell, &s->l) != (struct shell *)&r->s_hd)
		bu_vls_printf(gedp->ged_result_str, "WARNING: model has more than one shell, only facetizing the first\n");

	    if (!BU_SETJUMP) {
		/* try */
		bot = (struct rt_bot_internal *)nmg_bot(s, &gedp->ged_wdbp->wdb_tol);
	    } else {
		/* catch */
		BU_UNSETJUMP;
		bu_vls_printf(gedp->ged_result_str, "WARNING: conversion to BOT failed!\n");
		db_free_tree(facetize_tree, &rt_uniresource);
		facetize_tree = (union tree *)NULL;
		nmg_km(nmg_model);
		nmg_model = (struct model *)NULL;
		return GED_ERROR;
	    } BU_UNSETJUMP;

	    nmg_km(nmg_model);
	    nmg_model = (struct model *)NULL;

	    /* Export BOT as a new solid */
	    RT_DB_INTERNAL_INIT(&intern);
	    intern.idb_major_type = DB5_MAJORTYPE_BRLCAD;
	    intern.idb_type = ID_BOT;
	    intern.idb_meth = &OBJ[ID_BOT];
	    intern.idb_ptr = (void *) bot;
	} else {

	    bu_vls_printf(gedp->ged_result_str, "facetize:  converting NMG to database format\n");

	    /* Export NMG as a new solid */
	    RT_DB_INTERNAL_INIT(&intern);
	    intern.idb_major_type = DB5_MAJORTYPE_BRLCAD;
	    intern.idb_type = ID_NMG;
	    intern.idb_meth = &OBJ[ID_NMG];
	    intern.idb_ptr = (void *)nmg_model;
	    nmg_model = (struct model *)NULL;
	}

    }

    dp=db_diradd(dbip, newname, RT_DIR_PHONY_ADDR, 0, RT_DIR_SOLID, (void *)&intern.idb_type);
    if (dp == RT_DIR_NULL) {
	bu_vls_printf(gedp->ged_result_str, "Cannot add %s to directory\n", newname);
	return GED_ERROR;
    }

    if (rt_db_put_internal(dp, dbip, &intern, &rt_uniresource) < 0) {
	bu_vls_printf(gedp->ged_result_str, "Failed to write %s to database\n", newname);
	rt_db_free_internal(&intern);
	return GED_ERROR;
    }

    if (!screened_poisson) {
	facetize_tree->tr_d.td_r = (struct nmgregion *)NULL;

	/* Free boolean tree, and the regions in it */
	db_free_tree(facetize_tree, &rt_uniresource);
	facetize_tree = (union tree *)NULL;
    }

    return GED_OK;
}