Campbell Barton
14fe11bd81
more of a request then a bug but shows up a strange limitation with curve deform modifier, The mesh bounding box would set the deform axis start/end to map the deformation of the curve to. This means it ignored offset in the object location and object data location (you could use a dummy vertex to trick it). Old files wont change, added an option (next to stretch), called 'Bounds Clamp', old files have this behavior but newly made curves have it disabled. Double checked this gives useful results with stretch on/off and negative axis.
116 lines
4.5 KiB
C++
116 lines
4.5 KiB
C++
/**
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* blenlib/BKE_curve.h (mar-2001 nzc)
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*
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* $Id$
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*
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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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struct Curve;
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struct ListBase;
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struct Object;
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struct Scene;
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struct Nurb;
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struct ListBase;
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struct BezTriple;
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struct BevList;
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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!=0.0 || (cu)->ext2!=0.0) ? 1:0)
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void unlink_curve( struct Curve *cu);
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void free_curve( struct Curve *cu);
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void BKE_free_editfont(struct Curve *cu);
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struct Curve *add_curve(char *name, int type);
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struct Curve *copy_curve( struct Curve *cu);
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void make_local_curve( struct Curve *cu);
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short curve_type( struct Curve *cu);
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void test_curve_type( struct Object *ob);
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void tex_space_curve( struct Curve *cu);
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int count_curveverts( struct ListBase *nurb);
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int count_curveverts_without_handles( struct ListBase *nurb);
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void freeNurb( struct Nurb *nu);
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void freeNurblist( struct ListBase *lb);
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struct Nurb *duplicateNurb( struct Nurb *nu);
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void duplicateNurblist( struct ListBase *lb1, struct ListBase *lb2);
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void test2DNurb( struct Nurb *nu);
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void minmaxNurb( struct Nurb *nu, float *min, float *max);
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void makeknots( struct Nurb *nu, short uv);
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void makeNurbfaces(struct Nurb *nu, float *coord_array, int rowstride);
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void makeNurbcurve(struct Nurb *nu, float *coord_array, float *tilt_array, float *radius_array, float *weight_array, int resolu, int stride);
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void forward_diff_bezier(float q0, float q1, float q2, float q3, float *p, int it, int stride);
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float *make_orco_curve(struct Scene *scene, struct Object *ob);
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float *make_orco_surf( struct Object *ob);
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void makebevelcurve(struct Scene *scene, struct Object *ob, struct ListBase *disp, int forRender);
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void makeBevelList( struct Object *ob);
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void calchandleNurb( struct BezTriple *bezt, struct BezTriple *prev, struct BezTriple *next, int mode);
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void calchandlesNurb( struct Nurb *nu);
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void testhandlesNurb( struct Nurb *nu);
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void autocalchandlesNurb( struct Nurb *nu, int flag);
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void autocalchandlesNurb_all(ListBase *editnurb, int flag);
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void sethandlesNurb(ListBase *editnurb, short code);
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void switchdirectionNurb( struct Nurb *nu);
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void addNurbPoints(struct Nurb *nu, int number);
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void addNurbPointsBezier(struct Nurb *nu, int number);
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float (*curve_getVertexCos(struct Curve *cu, struct ListBase *lb, int *numVerts_r))[3];
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void curve_applyVertexCos(struct Curve *cu, struct ListBase *lb, float (*vertexCos)[3]);
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float (*curve_getKeyVertexCos(struct Curve *cu, struct ListBase *lb, float *key))[3];
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void curve_applyKeyVertexTilts(struct Curve *cu, struct ListBase *lb, float *key);
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/* nurb checks if they can be drawn, also clamp order func */
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int check_valid_nurb_u( struct Nurb *nu);
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int check_valid_nurb_v( struct Nurb *nu);
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int clamp_nurb_order_u( struct Nurb *nu);
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int clamp_nurb_order_v( struct Nurb *nu);
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ListBase *BKE_curve_nurbs(struct Curve *cu);
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int minmax_curve(struct Curve *cu, float min[3], float max[3]);
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int curve_center_median(struct Curve *cu, float cent[3]);
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int curve_center_bounds(struct Curve *cu, float cent[3]);
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void curve_translate(struct Curve *cu, float offset[3], int do_keys);
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#endif
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