sketch.h

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/*                        S K E T C H . H
 * BRL-CAD
 *
 * Copyright (c) 1993-2026 United States Government as represented by
 * the U.S. Army Research Laboratory.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * version 2.1 as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this file; see the file named COPYING for more
 * information.
 */
/** @addtogroup rt_sketch */
/** @{ */
/** @file rt/primitives/sketch.h */
 
#ifndef RT_PRIMITIVES_SKETCH_H
#define RT_PRIMITIVES_SKETCH_H
 
#include "common.h"
#include "vmath.h"
#include "bu/list.h"
#include "bu/vls.h"
#include "bn/tol.h"
#include "bv/defines.h"
#include "rt/defines.h"
#include "rt/directory.h"
#include "rt/db_instance.h"
 
__BEGIN_DECLS
 
/* SKETCH specific editing info */
struct rt_sketch_edit {
    int curr_vert;  /* index of the currently selected vertex (-1 = none) */
    int curr_seg;   /* index of the currently selected curve segment (-1 = none) */
    /* Mouse-proximity pick: ft_edit_xy stores cursor here; ft_edit reads it */
    point_t v_pos;      /* view-space cursor position set by ft_edit_xy */
    int v_pos_valid;    /* non-zero when v_pos holds a pending proximity query */
};
 
RT_EXPORT extern int rt_check_curve(const struct rt_curve *crv,
                                    const struct rt_sketch_internal *skt,
                                    int noisy);
 
RT_EXPORT extern void rt_curve_reverse_segment(uint32_t *lng);
RT_EXPORT extern void rt_curve_order_segments(struct rt_curve *crv);
 
RT_EXPORT extern void rt_copy_curve(struct rt_curve *crv_out,
                                    const struct rt_curve *crv_in);
 
RT_EXPORT extern void rt_curve_free(struct rt_curve *crv);
RT_EXPORT extern void rt_copy_curve(struct rt_curve *crv_out,
                                    const struct rt_curve *crv_in);
RT_EXPORT extern struct rt_sketch_internal *rt_copy_sketch(const struct rt_sketch_internal *sketch_ip);
 
RT_EXPORT extern struct bv_scene_obj *
db_sketch_to_scene_obj(const char *sname, struct db_i *dbip, struct directory *dp, struct bview *sv, int flags);
 
RT_EXPORT extern struct directory *
db_scene_obj_to_sketch(struct db_i *dbip, const char *sname, struct bv_scene_obj *s);
 
__END_DECLS
 
/** @} */
 
#endif /* RT_PRIMITIVES_SKETCH_H */
 
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