C++ GED_CHECK_ARGC_GT_0函数代码示例

/*
 * Erase all currently displayed geometry and draw the specified object(s)
 *
 * Usage:
 * blast object(s)
 *
 */
int
ged_blast(struct ged *gedp, int argc, const char *argv[])
{
    static const char *usage = "object(s)";

    GED_CHECK_DATABASE_OPEN(gedp, GED_ERROR);
    GED_CHECK_DRAWABLE(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;
    }

    /* First, clear the screen */
    {
	const char *av[2];

	av[0] = "zap";
	av[1] = (char *)0;
	ged_zap(gedp, 1, av);
    }

    /* Draw the new object(s) */
    return ged_draw(gedp, argc, argv);
}

int
ged_cat(struct ged *gedp, int argc, const char *argv[])
{
    struct directory *dp;
    int arg;
    static const char *usage = "<objects>";

    GED_CHECK_DATABASE_OPEN(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;
    }

    for (arg = 1; arg < argc; arg++) {
	if ((dp = db_lookup(gedp->ged_wdbp->dbip, argv[arg], LOOKUP_NOISY)) == RT_DIR_NULL)
	    continue;

	_ged_do_list(gedp, dp, 0);	/* non-verbose */
    }

    return GED_OK;
}

/**
 * Given a point in model space coordinates (in mm) convert it to view
 * (screen) coordinates which must be scaled to correspond to actual
 * screen coordinates. If no input coordinates are supplied, the
 * model2view matrix is displayed.
 */
int
ged_model2view(struct ged *gedp, int argc, const char *argv[])
{
    point_t view_pt;
    double model_pt[3]; /* intentionally double for scan */
    static const char *usage = "[x y z]";

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

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

    /* get the model2view matrix */
    if (argc == 1) {
	bn_encode_mat(gedp->ged_result_str, gedp->ged_gvp->gv_model2view);
	return GED_OK;
    }

    if (argc != 4
	|| sscanf(argv[1], "%lf", &model_pt[X]) != 1
	|| sscanf(argv[2], "%lf", &model_pt[Y]) != 1
	|| sscanf(argv[3], "%lf", &model_pt[Z]) != 1)
    {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_ERROR;
    }

    MAT4X3PNT(view_pt, gedp->ged_gvp->gv_model2view, model_pt);
    bn_encode_vect(gedp->ged_result_str, view_pt);

    return GED_OK;
}

int
ged_debuglib(struct ged *gedp, int argc, const char *argv[])
{
    static const char *usage = "[hex_code]";

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

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

    if (argc > 2) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_ERROR;
    }

    /* get librt's debug bit vector */
    if (argc == 1) {
	bu_vls_printb(gedp->ged_result_str, "Possible flags", 0xffffffffL, DEBUG_FORMAT);
	bu_vls_printf(gedp->ged_result_str, "\n");
    } else {
	/* set librt's debug bit vector */
	if (sscanf(argv[1], "%x", (unsigned int *)&rt_g.debug) != 1) {
	    bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	    return GED_ERROR;
	}

	if (RT_G_DEBUG) bu_debug |= BU_DEBUG_COREDUMP;
    }

    bu_vls_printb(gedp->ged_result_str, "librt RT_G_DEBUG", RT_G_DEBUG, DEBUG_FORMAT);
    bu_vls_printf(gedp->ged_result_str, "\n");

    return GED_OK;
}

int
ged_form(struct ged *gedp, int argc, const char *argv[])
{
    const struct rt_functab *ftp;
    static const char *usage = "type";

    GED_CHECK_DATABASE_OPEN(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 != 2) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_ERROR;
    }

    if ((ftp = rt_get_functab_by_label(argv[1])) == NULL) {
	bu_vls_printf(gedp->ged_result_str, "There is no geometric object type \"%s\".", argv[1]);
	return GED_ERROR;
    }

    if (!ftp->ft_form) {
	return GED_ERROR;
    }

    return ftp->ft_form(gedp->ged_result_str, ftp);
}

int
ged_model2view_lu(struct ged *gedp, int argc, const char *argv[])
{
    fastf_t f;
    point_t view_pt;
    double model_pt[3]; /* intentionally double for scan */
    static const char *usage = "x y z";

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

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

    if (argc != 4)
	goto bad;

    if (sscanf(argv[1], "%lf", &model_pt[X]) != 1 ||
	sscanf(argv[2], "%lf", &model_pt[Y]) != 1 ||
	sscanf(argv[3], "%lf", &model_pt[Z]) != 1)
	goto bad;

    VSCALE(model_pt, model_pt, gedp->ged_wdbp->dbip->dbi_local2base);
    MAT4X3PNT(view_pt, gedp->ged_gvp->gv_model2view, model_pt);
    f = gedp->ged_gvp->gv_scale * gedp->ged_wdbp->dbip->dbi_base2local;
    VSCALE(view_pt, view_pt, f);
    bn_encode_vect(gedp->ged_result_str, view_pt);

    return GED_OK;

bad:
    bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
    return GED_ERROR;
}

/*
 * Returns the views eyemodel
 *
 * Usage:
 * get_eyemodel
 *
 */
int
ged_get_eyemodel(struct ged *gedp, int argc, const char *argv[])
{
    quat_t quat;
    vect_t eye_model;

    GED_CHECK_DATABASE_OPEN(gedp, GED_ERROR);
    GED_CHECK_DRAWABLE(gedp, GED_ERROR);
    GED_CHECK_VIEW(gedp, GED_ERROR);
    GED_CHECK_ARGC_GT_0(gedp, argc, GED_ERROR);

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

    if (argc != 1) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s", argv[0]);
	return GED_ERROR;
    }

    _ged_rt_set_eye_model(gedp, eye_model);
    quat_mat2quat(quat, gedp->ged_gvp->gv_rotation);

    bu_vls_printf(gedp->ged_result_str, "viewsize %.15e;\n", gedp->ged_gvp->gv_size);
    bu_vls_printf(gedp->ged_result_str, "orientation %.15e %.15e %.15e %.15e;\n",
		  V4ARGS(quat));
    bu_vls_printf(gedp->ged_result_str, "eye_pt %.15e %.15e %.15e;\n",
		  eye_model[X], eye_model[Y], eye_model[Z]);

    return GED_OK;
}

int
ged_zoom(struct ged *gedp, int argc, const char *argv[])
{
    int ret;
    double sf = 1.0;

    GED_CHECK_VIEW(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 != 2) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s scale_factor", argv[0]);
	return (argc == 1) ? GED_HELP : GED_ERROR;
    }

    /* get the scale factor */
    ret = sscanf(argv[1], "%lf", &sf);
    if (ret != 1 || sf < SMALL_FASTF || sf > INFINITY) {
	bu_vls_printf(gedp->ged_result_str, "ERROR: bad scale factor [%s]", argv[1]);
	return GED_ERROR;
    }

    return zoom(gedp, sf);
}

int
ged_echo(struct ged *gedp, int argc, const char *argv[])
{
    int i;

    static const char *usage = "args";

    GED_CHECK_DATABASE_OPEN(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;
    }

    for (i = 1; i < argc; i++) {
	bu_vls_printf(gedp->ged_result_str, "%s%s", i == 1 ? "" : " ", argv[i]);
    }

    bu_vls_printf(gedp->ged_result_str, "\n");

    return GED_OK;
}

int
ged_find_botpt_nearest_pt(struct ged *gedp, int argc, const char *argv[])
{
    static const char *usage = "bot view_xyz";
    struct rt_db_internal intern;
    struct rt_bot_internal *botip;
    mat_t mat;
    int nearest_pt;
    vect_t view;

    /* must be double for scanf */
    double scan[ELEMENTS_PER_VECT];

    GED_CHECK_DATABASE_OPEN(gedp, GED_ERROR);
    GED_CHECK_VIEW(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;
    }

    if (bu_sscanf(argv[2], "%lf %lf %lf", &scan[X], &scan[Y], &scan[Z]) != 3) {
	bu_vls_printf(gedp->ged_result_str, "%s: bad view location - %s", argv[0], argv[2]);
	return GED_ERROR;
    }

    if (wdb_import_from_path2(gedp->ged_result_str, &intern, argv[1], gedp->ged_wdbp, mat) == GED_ERROR) {
	bu_vls_printf(gedp->ged_result_str, "%s: failed to find %s", argv[0], argv[1]);
	return 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, "Object is not a BOT");
	rt_db_free_internal(&intern);

	return GED_ERROR;
    }

    botip = (struct rt_bot_internal *)intern.idb_ptr;
    VMOVE(view, scan); /* convert double to fastf_t */

    nearest_pt = rt_bot_find_v_nearest_pt2(botip, view, gedp->ged_gvp->gv_model2view);
    bu_vls_printf(gedp->ged_result_str, "%d", nearest_pt);

    rt_db_free_internal(&intern);
    return GED_OK;
}

int
ged_v2m_point(struct ged *gedp, int argc, const char *argv[])
{
    point_t view;
    point_t model;
    static const char *usage = "x y z";

    GED_CHECK_DATABASE_OPEN(gedp, GED_ERROR);
    GED_CHECK_VIEW(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 != 2 && argc != 4) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_ERROR;
    }

    if (argc == 2) {
	if (bn_decode_vect(view, argv[1]) != 3) {
	    bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	    return GED_ERROR;
	}
    } else {
	double scan[3];

	if (sscanf(argv[1], "%lf", &scan[X]) != 1) {
	    bu_vls_printf(gedp->ged_result_str, "ged_m2v_point: bad X value - %s\n", argv[1]);
	    return GED_ERROR;
	}

	if (sscanf(argv[2], "%lf", &scan[Y]) != 1) {
	    bu_vls_printf(gedp->ged_result_str, "ged_m2v_point: bad Y value - %s\n", argv[2]);
	    return GED_ERROR;
	}

	if (sscanf(argv[3], "%lf", &scan[Z]) != 1) {
	    bu_vls_printf(gedp->ged_result_str, "ged_m2v_point: bad Z value - %s\n", argv[3]);
	    return GED_ERROR;
	}

	/* convert from double to fastf_t */
	VMOVE(view, scan);
    }

    /* Convert the incoming view point to a model point */
    MAT4X3PNT(model, gedp->ged_gvp->gv_view2model, view);
    bn_encode_vect(gedp->ged_result_str, model);

    return GED_OK;
}

int
ged_setview(struct ged *gedp, int argc, const char *argv[])
{
    vect_t rvec;
    static const char *usage = "x y z";

    GED_CHECK_DATABASE_OPEN(gedp, GED_ERROR);
    GED_CHECK_VIEW(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 != 2 && argc != 4) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_ERROR;
    }

    /* set view center */
    if (argc == 2) {
	if (bn_decode_vect(rvec, argv[1]) != 3) {
	    bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	    return GED_ERROR;
	}
    } else {
	double scan[3];

	if (sscanf(argv[1], "%lf", &scan[X]) != 1) {
	    bu_vls_printf(gedp->ged_result_str, "ged_setview: bad X value - %s\n", argv[1]);
	    return GED_ERROR;
	}

	if (sscanf(argv[2], "%lf", &scan[Y]) != 1) {
	    bu_vls_printf(gedp->ged_result_str, "ged_setview: bad Y value - %s\n", argv[2]);
	    return GED_ERROR;
	}

	if (sscanf(argv[3], "%lf", &scan[Z]) != 1) {
	    bu_vls_printf(gedp->ged_result_str, "ged_setview: bad Z value - %s\n", argv[3]);
	    return GED_ERROR;
	}

	/* convert from double to fastf_t */
	VMOVE(rvec, scan);
    }

    bn_mat_angles(gedp->ged_gvp->gv_rotation, rvec[X], rvec[Y], rvec[Z]);
    ged_view_update(gedp->ged_gvp);

    return GED_OK;
}

/*
 * Illuminate/highlight database object
 *
 * Usage:
 * illum [-n] obj
 *
 */
int
ged_illum(struct ged *gedp, int argc, const char *argv[])
{
    struct display_list *gdlp;
    struct display_list *next_gdlp;
    int found = 0;
    int illum = 1;
    static const char *usage = "[-n] obj";

    GED_CHECK_DATABASE_OPEN(gedp, GED_ERROR);
    GED_CHECK_DRAWABLE(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) {
	if (argv[1][0] == '-' && argv[1][1] == 'n')
	    illum = 0;
	else
	    goto bad;

	--argc;
	++argv;
    }

    if (argc != 2)
	goto bad;

    gdlp = BU_LIST_NEXT(display_list, gedp->ged_gdp->gd_headDisplay);
    while (BU_LIST_NOT_HEAD(gdlp, gedp->ged_gdp->gd_headDisplay)) {
	next_gdlp = BU_LIST_PNEXT(display_list, gdlp);

	found += dl_set_illum(gdlp, argv[1], illum);

	gdlp = next_gdlp;
    }


    if (!found) {
	bu_vls_printf(gedp->ged_result_str, "illum: %s not found", argv[1]);
	return GED_ERROR;
    }

    return GED_OK;

bad:
    bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
    return GED_ERROR;
}

int
ged_scale_args(struct ged *gedp, int argc, const char *argv[], fastf_t *sf1, fastf_t *sf2, fastf_t *sf3)
{
    static const char *usage = "sf (or) sfx sfy sfz";
    int ret = GED_OK, args_read;
    double scan;

    GED_CHECK_DATABASE_OPEN(gedp, GED_ERROR);
    GED_CHECK_VIEW(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 != 2 && argc != 4) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_ERROR;
    }

    if (argc == 2) {
	if (!sf1 || sscanf(argv[1], "%lf", &scan) != 1) {
	    bu_vls_printf(gedp->ged_result_str, "\nbad scale factor '%s'", argv[1]);
	    return GED_ERROR;
	}
	*sf1 = scan;
    } else {
	args_read = sscanf(argv[1], "%lf", &scan);
	if (!sf1 || args_read != 1) {
	    bu_vls_printf(gedp->ged_result_str, "\nbad x scale factor '%s'", argv[1]);
	    ret = GED_ERROR;
	}
	*sf1 = scan;

	args_read = sscanf(argv[2], "%lf", &scan);
	if (!sf2 || args_read != 1) {
	    bu_vls_printf(gedp->ged_result_str, "\nbad y scale factor '%s'", argv[2]);
	    ret = GED_ERROR;
	}
	*sf2 = scan;

	args_read = sscanf(argv[3], "%lf", &scan);
	if (!sf3 || args_read != 1) {
	    bu_vls_printf(gedp->ged_result_str, "\nbad z scale factor '%s'", argv[3]);
	    ret = GED_ERROR;
	}
	*sf3 = scan;
    }
    return ret;
}

/*
 * List the objects currently prepped for drawing
 *
 * Usage:
 * who [r(eal)|p(hony)|b(oth)]
 *
 */
int
ged_who(struct ged *gedp, int argc, const char *argv[])
{
    struct ged_display_list *gdlp;
    int skip_real, skip_phony;
    static const char *usage = "[r(eal)|p(hony)|b(oth)]";

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

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

    if (2 < argc) {
	bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
	return GED_ERROR;
    }

    skip_real = 0;
    skip_phony = 1;
    if (argc == 2) {
	switch (argv[1][0]) {
	    case 'b':
		skip_real = 0;
		skip_phony = 0;
		break;
	    case 'p':
		skip_real = 1;
		skip_phony = 0;
		break;
	    case 'r':
		skip_real = 0;
		skip_phony = 1;
		break;
	    default:
		bu_vls_printf(gedp->ged_result_str, "ged_who: argument not understood\n");
		return GED_ERROR;
	}
    }

    for (BU_LIST_FOR(gdlp, ged_display_list, gedp->ged_gdp->gd_headDisplay)) {
	if (gdlp->gdl_dp->d_addr == RT_DIR_PHONY_ADDR) {
	    if (skip_phony) continue;
	} else {
	    if (skip_real) continue;
	}

	bu_vls_printf(gedp->ged_result_str, "%s ", bu_vls_addr(&gdlp->gdl_path));
    }

    return GED_OK;
}