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Transform: limit zero radius Shrink/Fatten to only 1 curve point 

rBb70bbfadfece allowed scaling of zero-radius points, but as it behaves
differently from other radius, it may not be suitable for multi-point
transformation.
This commit is contained in:
Germano Cavalcante 2022-10-24 00:16:21 -03:00
parent 93afc50ac3
commit b7c5ce8c2d
1 changed files with 9 additions and 4 deletions
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13
source/blender/editors/transform/transform_mode_curveshrinkfatten.c
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@ -101,12 +101,17 @@ void initCurveShrinkFatten(TransInfo *t)
t->flag |= T_NO_CONSTRAINT;
if ((t->spacetype == SPACE_VIEW3D) && (t->region->regiontype == RGN_TYPE_WINDOW)) {
/* Save a factor to multiply the ratio and use in zero radius cases. */
float scale_factor = 0.0f;
if ((t->spacetype == SPACE_VIEW3D) && (t->region->regiontype == RGN_TYPE_WINDOW) &&
t->data_len_all == 1 ||
(t->data_len_all == 3 && TRANS_DATA_CONTAINER_FIRST_OK(t)->data[0].val == NULL)) {
/* For cases where only one point on the curve is being transformed and the radius of that
* point is zero, use the factor to multiply the offset of the ratio and allow scaling.
* Note that for bezier curves, 3 TransData equals 1 point in most cases. */
RegionView3D *rv3d = t->region->regiondata;
float scale_factor = rv3d->pixsize * t->mouse.factor * t->zfac;
t->custom.mode.data = POINTER_FROM_UINT(float_as_uint(scale_factor));
scale_factor = rv3d->pixsize * t->mouse.factor * t->zfac;
}
t->custom.mode.data = POINTER_FROM_UINT(float_as_uint(scale_factor));
}
/** \} */