181 lines
7.7 KiB
C
181 lines
7.7 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __BKE_CURVE_H__
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#define __BKE_CURVE_H__
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/** \file BKE_curve.h
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* \ingroup bke
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* \since March 2001
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* \author nzc
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*/
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struct BevList;
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struct BezTriple;
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struct Curve;
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struct EditNurb;
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struct ListBase;
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struct Main;
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struct Nurb;
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struct Object;
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struct Scene;
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struct Path;
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struct TextBox;
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struct rctf;
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typedef struct CurveCache {
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ListBase disp;
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ListBase bev;
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struct Path *path;
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} CurveCache;
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#define KNOTSU(nu) ( (nu)->orderu + (nu)->pntsu + (((nu)->flagu & CU_NURB_CYCLIC) ? ((nu)->orderu - 1) : 0) )
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#define KNOTSV(nu) ( (nu)->orderv + (nu)->pntsv + (((nu)->flagv & CU_NURB_CYCLIC) ? ((nu)->orderv - 1) : 0) )
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/* Non cyclic nurbs have 1 less segment */
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#define SEGMENTSU(nu) ( ((nu)->flagu & CU_NURB_CYCLIC) ? (nu)->pntsu : (nu)->pntsu - 1)
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#define SEGMENTSV(nu) ( ((nu)->flagv & CU_NURB_CYCLIC) ? (nu)->pntsv : (nu)->pntsv - 1)
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#define CU_DO_TILT(cu, nu) (((nu->flag & CU_2D) && (cu->flag & CU_3D) == 0) ? 0 : 1)
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#define CU_DO_RADIUS(cu, nu) ((CU_DO_TILT(cu, nu) || ((cu)->flag & CU_PATH_RADIUS) || (cu)->bevobj || (cu)->ext1 != 0.0f || (cu)->ext2 != 0.0f) ? 1 : 0)
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/* not 3d and not unfilled */
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#define CU_DO_2DFILL(cu) ((((cu)->flag & CU_3D) == 0) && (((cu)->flag & (CU_FRONT | CU_BACK)) != 0))
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/* ** Curve ** */
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void BKE_curve_unlink(struct Curve *cu);
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void BKE_curve_free(struct Curve *cu);
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void BKE_curve_editfont_free(struct Curve *cu);
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struct Curve *BKE_curve_add(struct Main *bmain, const char *name, int type);
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struct Curve *BKE_curve_copy(struct Curve *cu);
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void BKE_curve_make_local(struct Curve *cu);
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short BKE_curve_type_get(struct Curve *cu);
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void BKE_curve_type_test(struct Object *ob);
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void BKE_curve_curve_dimension_update(struct Curve *cu);
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void BKE_curve_boundbox_calc(struct Curve *cu, float r_loc[3], float r_size[3]);
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struct BoundBox *BKE_curve_boundbox_get(struct Object *ob);
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void BKE_curve_texspace_calc(struct Curve *cu);
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void BKE_curve_texspace_get(struct Curve *cu, float r_loc[3], float r_rot[3], float r_size[3]);
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bool BKE_curve_minmax(struct Curve *cu, bool use_radius, float min[3], float max[3]);
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bool BKE_curve_center_median(struct Curve *cu, float cent[3]);
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bool BKE_curve_center_bounds(struct Curve *cu, float cent[3]);
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void BKE_curve_translate(struct Curve *cu, float offset[3], const bool do_keys);
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void BKE_curve_material_index_remove(struct Curve *cu, int index);
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void BKE_curve_material_index_clear(struct Curve *cu);
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ListBase *BKE_curve_nurbs_get(struct Curve *cu);
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void BKE_curve_nurb_active_set(struct Curve *cu, struct Nurb *nu);
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struct Nurb *BKE_curve_nurb_active_get(struct Curve *cu);
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void *BKE_curve_vert_active_get(struct Curve *cu);
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void BKE_curve_nurb_vert_active_set(struct Curve *cu, struct Nurb *nu, void *vert);
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bool BKE_curve_nurb_vert_active_get(struct Curve *cu, struct Nurb **r_nu, void **r_vert);
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void BKE_curve_nurb_vert_active_validate(struct Curve *cu);
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float (*BKE_curve_nurbs_vertexCos_get(struct ListBase *lb, int *r_numVerts))[3];
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void BK_curve_nurbs_vertexCos_apply(struct ListBase *lb, float (*vertexCos)[3]);
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float (*BKE_curve_nurbs_keyVertexCos_get(struct ListBase *lb, float *key))[3];
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void BKE_curve_nurbs_keyVertexTilts_apply(struct ListBase *lb, float *key);
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void BKE_curve_editNurb_keyIndex_free(struct EditNurb *editnurb);
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void BKE_curve_editNurb_free(struct Curve *cu);
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struct ListBase *BKE_curve_editNurbs_get(struct Curve *cu);
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float *BKE_curve_make_orco(struct Scene *scene, struct Object *ob, int *r_numVerts);
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float *BKE_curve_surf_make_orco(struct Object *ob);
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void BKE_curve_bevelList_make(struct Object *ob, struct ListBase *nurbs, bool for_render);
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void BKE_curve_bevel_make(struct Scene *scene, struct Object *ob, struct ListBase *disp,
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const bool for_render, const bool use_render_resolution);
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void BKE_curve_forward_diff_bezier(float q0, float q1, float q2, float q3, float *p, int it, int stride);
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void BKE_curve_rect_from_textbox(const struct Curve *cu, const struct TextBox *tb, struct rctf *r_rect);
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/* ** Nurbs ** */
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bool BKE_nurbList_index_get_co(struct ListBase *editnurb, const int index, float r_co[3]);
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int BKE_nurbList_verts_count(struct ListBase *nurb);
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int BKE_nurbList_verts_count_without_handles(struct ListBase *nurb);
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void BKE_nurbList_free(struct ListBase *lb);
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void BKE_nurbList_duplicate(struct ListBase *lb1, struct ListBase *lb2);
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void BKE_nurbList_handles_set(struct ListBase *editnurb, const char code);
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void BKE_nurbList_handles_recalculate(struct ListBase *editnurb, const bool calc_length, const char flag);
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void BKE_nurbList_handles_autocalc(ListBase *editnurb, int flag);
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void BKE_nurbList_flag_set(ListBase *editnurb, short flag);
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void BKE_nurb_free(struct Nurb *nu);
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struct Nurb *BKE_nurb_duplicate(struct Nurb *nu);
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struct Nurb *BKE_nurb_copy(struct Nurb *src, int pntsu, int pntsv);
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void BKE_nurb_test2D(struct Nurb *nu);
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void BKE_nurb_minmax(struct Nurb *nu, bool use_radius, float min[3], float max[3]);
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void BKE_nurb_makeFaces(struct Nurb *nu, float *coord_array, int rowstride, int resolu, int resolv);
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void BKE_nurb_makeCurve(struct Nurb *nu, float *coord_array, float *tilt_array, float *radius_array, float *weight_array, int resolu, int stride);
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void BKE_nurb_knot_calc_u(struct Nurb *nu);
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void BKE_nurb_knot_calc_v(struct Nurb *nu);
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/* nurb checks if they can be drawn, also clamp order func */
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bool BKE_nurb_check_valid_u(struct Nurb *nu);
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bool BKE_nurb_check_valid_v(struct Nurb *nu);
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bool BKE_nurb_check_valid_uv(struct Nurb *nu);
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bool BKE_nurb_order_clamp_u(struct Nurb *nu);
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bool BKE_nurb_order_clamp_v(struct Nurb *nu);
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void BKE_nurb_direction_switch(struct Nurb *nu);
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bool BKE_nurb_type_convert(struct Nurb *nu, const short type, const bool use_handles);
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void BKE_nurb_points_add(struct Nurb *nu, int number);
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void BKE_nurb_bezierPoints_add(struct Nurb *nu, int number);
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struct BezTriple *BKE_nurb_bezt_get_next(struct Nurb *nu, struct BezTriple *bezt);
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struct BezTriple *BKE_nurb_bezt_get_prev(struct Nurb *nu, struct BezTriple *bezt);
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struct BPoint *BKE_nurb_bpoint_get_next(struct Nurb *nu, struct BPoint *bp);
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struct BPoint *BKE_nurb_bpoint_get_prev(struct Nurb *nu, struct BPoint *bp);
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void BKE_nurb_bezt_calc_normal(struct Nurb *nu, struct BezTriple *bezt, float r_normal[3]);
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void BKE_nurb_bezt_calc_plane(struct Nurb *nu, struct BezTriple *bezt, float r_plane[3]);
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void BKE_nurb_handle_calc(struct BezTriple *bezt, struct BezTriple *prev, struct BezTriple *next,
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const bool is_fcurve);
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void BKE_nurb_handle_calc_simple(struct Nurb *nu, struct BezTriple *bezt);
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void BKE_nurb_handles_calc(struct Nurb *nu);
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void BKE_nurb_handles_autocalc(struct Nurb *nu, int flag);
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void BKE_nurb_bezt_handle_test(struct BezTriple *bezt, const bool use_handle);
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void BKE_nurb_handles_test(struct Nurb *nu, const bool use_handles);
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#endif /* __BKE_CURVE_H__ */
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