diff options
Diffstat (limited to 'source/blender/blenkernel/intern/curve.c')
| -rw-r--r-- | source/blender/blenkernel/intern/curve.c | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/source/blender/blenkernel/intern/curve.c b/source/blender/blenkernel/intern/curve.c index 4ba9ad281a3..1cecf41af55 100644 --- a/source/blender/blenkernel/intern/curve.c +++ b/source/blender/blenkernel/intern/curve.c @@ -187,7 +187,7 @@ Curve *BKE_curve_add(Main *bmain, const char *name, int type) return cu; } -Curve *BKE_curve_copy(Main *bmain, Curve *cu) +Curve *BKE_curve_copy(Main *bmain, const Curve *cu) { Curve *cun; int a; @@ -468,7 +468,7 @@ void BKE_nurbList_free(ListBase *lb) BLI_listbase_clear(lb); } -Nurb *BKE_nurb_duplicate(Nurb *nu) +Nurb *BKE_nurb_duplicate(const Nurb *nu) { Nurb *newnu; int len; @@ -532,7 +532,7 @@ Nurb *BKE_nurb_copy(Nurb *src, int pntsu, int pntsv) return newnu; } -void BKE_nurbList_duplicate(ListBase *lb1, ListBase *lb2) +void BKE_nurbList_duplicate(ListBase *lb1, const ListBase *lb2) { Nurb *nu, *nun; @@ -744,6 +744,7 @@ BezTriple *BKE_nurb_bezt_get_prev(Nurb *nu, BezTriple *bezt) BezTriple *bezt_prev; BLI_assert(ARRAY_HAS_ITEM(bezt, nu->bezt, nu->pntsu)); + BLI_assert(nu->pntsv == 1); if (bezt == nu->bezt) { if (nu->flagu & CU_NURB_CYCLIC) { @@ -765,6 +766,7 @@ BPoint *BKE_nurb_bpoint_get_prev(Nurb *nu, BPoint *bp) BPoint *bp_prev; BLI_assert(ARRAY_HAS_ITEM(bp, nu->bp, nu->pntsu)); + BLI_assert(nu->pntsv == 1); if (bp == nu->bp) { if (nu->flagu & CU_NURB_CYCLIC) { @@ -781,7 +783,7 @@ BPoint *BKE_nurb_bpoint_get_prev(Nurb *nu, BPoint *bp) return bp_prev; } -void BKE_nurb_bezt_calc_normal(struct Nurb *UNUSED(nu), struct BezTriple *bezt, float r_normal[3]) +void BKE_nurb_bezt_calc_normal(struct Nurb *UNUSED(nu), BezTriple *bezt, float r_normal[3]) { /* calculate the axis matrix from the spline */ float dir_prev[3], dir_next[3]; @@ -796,7 +798,7 @@ void BKE_nurb_bezt_calc_normal(struct Nurb *UNUSED(nu), struct BezTriple *bezt, normalize_v3(r_normal); } -void BKE_nurb_bezt_calc_plane(struct Nurb *nu, struct BezTriple *bezt, float r_plane[3]) +void BKE_nurb_bezt_calc_plane(struct Nurb *nu, BezTriple *bezt, float r_plane[3]) { float dir_prev[3], dir_next[3]; @@ -833,7 +835,7 @@ void BKE_nurb_bezt_calc_plane(struct Nurb *nu, struct BezTriple *bezt, float r_p normalize_v3(r_plane); } -void BKE_nurb_bpoint_calc_normal(struct Nurb *nu, struct BPoint *bp, float r_normal[3]) +void BKE_nurb_bpoint_calc_normal(struct Nurb *nu, BPoint *bp, float r_normal[3]) { BPoint *bp_prev = BKE_nurb_bpoint_get_prev(nu, bp); BPoint *bp_next = BKE_nurb_bpoint_get_next(nu, bp); @@ -856,6 +858,34 @@ void BKE_nurb_bpoint_calc_normal(struct Nurb *nu, struct BPoint *bp, float r_nor normalize_v3(r_normal); } +void BKE_nurb_bpoint_calc_plane(struct Nurb *nu, BPoint *bp, float r_plane[3]) +{ + BPoint *bp_prev = BKE_nurb_bpoint_get_prev(nu, bp); + BPoint *bp_next = BKE_nurb_bpoint_get_next(nu, bp); + + float dir_prev[3] = {0.0f}, dir_next[3] = {0.0f}; + + if (bp_prev) { + sub_v3_v3v3(dir_prev, bp_prev->vec, bp->vec); + normalize_v3(dir_prev); + } + if (bp_next) { + sub_v3_v3v3(dir_next, bp->vec, bp_next->vec); + normalize_v3(dir_next); + } + cross_v3_v3v3(r_plane, dir_prev, dir_next); + + /* matches with bones more closely */ + { + float dir_mid[3], tvec[3]; + add_v3_v3v3(dir_mid, dir_prev, dir_next); + cross_v3_v3v3(tvec, r_plane, dir_mid); + copy_v3_v3(r_plane, tvec); + } + + normalize_v3(r_plane); +} + /* ~~~~~~~~~~~~~~~~~~~~Non Uniform Rational B Spline calculations ~~~~~~~~~~~ */ |