diff options
Diffstat (limited to 'source/blender/editors/curve/editcurve.c')
| -rw-r--r-- | source/blender/editors/curve/editcurve.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/source/blender/editors/curve/editcurve.c b/source/blender/editors/curve/editcurve.c index a034e4bb10e..a70bc1c0350 100644 --- a/source/blender/editors/curve/editcurve.c +++ b/source/blender/editors/curve/editcurve.c @@ -4953,19 +4953,22 @@ bool ed_editnurb_spin( if ((a & 1) == 0) { rotateflagNurb(editnurb, SELECT, cent, scalemat1); - weightflagNurb(editnurb, SELECT, 0.25 * M_SQRT2); + weightflagNurb(editnurb, SELECT, 0.5 * M_SQRT2); } else { rotateflagNurb(editnurb, SELECT, cent, scalemat2); - weightflagNurb(editnurb, SELECT, 4.0 / M_SQRT2); + weightflagNurb(editnurb, SELECT, 2.0 / M_SQRT2); } } if (ok) { LISTBASE_FOREACH (Nurb *, nu, editnurb) { if (ED_curve_nurb_select_check(v3d, nu)) { - nu->orderv = 4; - nu->flagv |= CU_NURB_CYCLIC; + nu->orderv = 3; + /* It is challenging to create a good approximation of a circle with uniform knots vector + * (which is forced in Blender for cyclic NURBS curves). Here a NURBS circle is constructed + * by connecting four Bezier arcs. */ + nu->flagv |= CU_NURB_CYCLIC | CU_NURB_BEZIER; BKE_nurb_knot_calc_v(nu); } } |