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blender-archive/source/blender/editors/space_view3d/view3d_snap.c
Campbell Barton 9e56c570c3 Cleanup: use more logical names for View3D.around 
D1651 (own patch)
2015-12-01 18:53:26 +11:00

790 lines
20 KiB
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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/space_view3d/view3d_snap.c
* \ingroup spview3d
*/
#include "DNA_armature_types.h"
#include "DNA_object_types.h"
#include "BLI_blenlib.h"
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "BKE_action.h"
#include "BKE_armature.h"
#include "BKE_context.h"
#include "BKE_depsgraph.h"
#include "BKE_main.h"
#include "BKE_mball.h"
#include "BKE_object.h"
#include "BKE_tracking.h"
#include "WM_api.h"
#include "WM_types.h"
#include "RNA_access.h"
#include "RNA_define.h"
#include "ED_object.h"
#include "ED_transverts.h"
#include "ED_keyframing.h"
#include "ED_screen.h"
#include "view3d_intern.h"
static bool snap_curs_to_sel_ex(bContext *C, float cursor[3]);
static bool snap_calc_active_center(bContext *C, const bool select_only, float r_center[3]);
/* *********************** operators ******************** */
static int snap_sel_to_grid_exec(bContext *C, wmOperator *UNUSED(op))
{
Object *obedit = CTX_data_edit_object(C);
Scene *scene = CTX_data_scene(C);
RegionView3D *rv3d = CTX_wm_region_data(C);
TransVertStore tvs = {NULL};
TransVert *tv;
float gridf, imat[3][3], bmat[3][3], vec[3];
int a;
gridf = rv3d->gridview;
if (obedit) {
if (ED_transverts_check_obedit(obedit))
ED_transverts_create_from_obedit(&tvs, obedit, 0);
if (tvs.transverts_tot == 0)
return OPERATOR_CANCELLED;
copy_m3_m4(bmat, obedit->obmat);
invert_m3_m3(imat, bmat);
tv = tvs.transverts;
for (a = 0; a < tvs.transverts_tot; a++, tv++) {
copy_v3_v3(vec, tv->loc);
mul_m3_v3(bmat, vec);
add_v3_v3(vec, obedit->obmat[3]);
vec[0] = gridf * floorf(0.5f + vec[0] / gridf);
vec[1] = gridf * floorf(0.5f + vec[1] / gridf);
vec[2] = gridf * floorf(0.5f + vec[2] / gridf);
sub_v3_v3(vec, obedit->obmat[3]);
mul_m3_v3(imat, vec);
copy_v3_v3(tv->loc, vec);
}
ED_transverts_update_obedit(&tvs, obedit);
ED_transverts_free(&tvs);
}
else {
struct KeyingSet *ks = ANIM_get_keyingset_for_autokeying(scene, ANIM_KS_LOCATION_ID);
CTX_DATA_BEGIN (C, Object *, ob, selected_editable_objects)
{
if (ob->mode & OB_MODE_POSE) {
bPoseChannel *pchan;
bArmature *arm = ob->data;
invert_m4_m4(ob->imat, ob->obmat);
for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
if (pchan->bone->flag & BONE_SELECTED) {
if (pchan->bone->layer & arm->layer) {
if ((pchan->bone->flag & BONE_CONNECTED) == 0) {
float nLoc[3];
/* get nearest grid point to snap to */
copy_v3_v3(nLoc, pchan->pose_mat[3]);
/* We must operate in world space! */
mul_m4_v3(ob->obmat, nLoc);
vec[0] = gridf * floorf(0.5f + nLoc[0] / gridf);
vec[1] = gridf * floorf(0.5f + nLoc[1] / gridf);
vec[2] = gridf * floorf(0.5f + nLoc[2] / gridf);
/* Back in object space... */
mul_m4_v3(ob->imat, vec);
/* Get location of grid point in pose space. */
BKE_armature_loc_pose_to_bone(pchan, vec, vec);
/* adjust location */
if ((pchan->protectflag & OB_LOCK_LOCX) == 0)
pchan->loc[0] = vec[0];
if ((pchan->protectflag & OB_LOCK_LOCY) == 0)
pchan->loc[1] = vec[1];
if ((pchan->protectflag & OB_LOCK_LOCZ) == 0)
pchan->loc[2] = vec[2];
/* auto-keyframing */
ED_autokeyframe_pchan(C, scene, ob, pchan, ks);
}
/* if the bone has a parent and is connected to the parent,
* don't do anything - will break chain unless we do auto-ik.
*/
}
}
}
ob->pose->flag |= (POSE_LOCKED | POSE_DO_UNLOCK);
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
}
else {
vec[0] = -ob->obmat[3][0] + gridf * floorf(0.5f + ob->obmat[3][0] / gridf);
vec[1] = -ob->obmat[3][1] + gridf * floorf(0.5f + ob->obmat[3][1] / gridf);
vec[2] = -ob->obmat[3][2] + gridf * floorf(0.5f + ob->obmat[3][2] / gridf);
if (ob->parent) {
float originmat[3][3];
BKE_object_where_is_calc_ex(scene, NULL, ob, originmat);
invert_m3_m3(imat, originmat);
mul_m3_v3(imat, vec);
}
if ((ob->protectflag & OB_LOCK_LOCX) == 0)
ob->loc[0] += vec[0];
if ((ob->protectflag & OB_LOCK_LOCY) == 0)
ob->loc[1] += vec[1];
if ((ob->protectflag & OB_LOCK_LOCZ) == 0)
ob->loc[2] += vec[2];
/* auto-keyframing */
ED_autokeyframe_object(C, scene, ob, ks);
DAG_id_tag_update(&ob->id, OB_RECALC_OB);
}
}
CTX_DATA_END;
}
WM_event_add_notifier(C, NC_OBJECT | ND_TRANSFORM, NULL);
return OPERATOR_FINISHED;
}
void VIEW3D_OT_snap_selected_to_grid(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Snap Selection to Grid";
ot->description = "Snap selected item(s) to nearest grid division";
ot->idname = "VIEW3D_OT_snap_selected_to_grid";
/* api callbacks */
ot->exec = snap_sel_to_grid_exec;
ot->poll = ED_operator_region_view3d_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
/* *************************************************** */
static int snap_sel_to_curs_exec(bContext *C, wmOperator *op)
{
Scene *scene = CTX_data_scene(C);
Object *obedit = CTX_data_edit_object(C);
Object *obact = CTX_data_active_object(C);
View3D *v3d = CTX_wm_view3d(C);
TransVertStore tvs = {NULL};
TransVert *tv;
float imat[3][3], bmat[3][3];
const float *cursor_global;
float center_global[3];
float offset_global[3];
int a;
const bool use_offset = RNA_boolean_get(op->ptr, "use_offset");
cursor_global = ED_view3d_cursor3d_get(scene, v3d);
if (use_offset) {
if ((v3d && v3d->around == V3D_AROUND_ACTIVE) &&
snap_calc_active_center(C, true, center_global))
{
/* pass */
}
else {
snap_curs_to_sel_ex(C, center_global);
}
sub_v3_v3v3(offset_global, cursor_global, center_global);
}
if (obedit) {
float cursor_local[3];
if (ED_transverts_check_obedit(obedit))
ED_transverts_create_from_obedit(&tvs, obedit, 0);
if (tvs.transverts_tot == 0)
return OPERATOR_CANCELLED;
copy_m3_m4(bmat, obedit->obmat);
invert_m3_m3(imat, bmat);
/* get the cursor in object space */
sub_v3_v3v3(cursor_local, cursor_global, obedit->obmat[3]);
mul_m3_v3(imat, cursor_local);
if (use_offset) {
float offset_local[3];
mul_v3_m3v3(offset_local, imat, offset_global);
tv = tvs.transverts;
for (a = 0; a < tvs.transverts_tot; a++, tv++) {
add_v3_v3(tv->loc, offset_local);
}
}
else {
tv = tvs.transverts;
for (a = 0; a < tvs.transverts_tot; a++, tv++) {
copy_v3_v3(tv->loc, cursor_local);
}
}
ED_transverts_update_obedit(&tvs, obedit);
ED_transverts_free(&tvs);
}
else if (obact && (obact->mode & OB_MODE_POSE)) {
struct KeyingSet *ks = ANIM_get_keyingset_for_autokeying(scene, ANIM_KS_LOCATION_ID);
bPoseChannel *pchan;
bArmature *arm = obact->data;
float cursor_local[3];
invert_m4_m4(obact->imat, obact->obmat);
mul_v3_m4v3(cursor_local, obact->imat, cursor_global);
for (pchan = obact->pose->chanbase.first; pchan; pchan = pchan->next) {
if ((pchan->bone->flag & BONE_SELECTED) &&
(PBONE_VISIBLE(arm, pchan->bone)) &&
/* if the bone has a parent and is connected to the parent,
* don't do anything - will break chain unless we do auto-ik.
*/
(pchan->bone->flag & BONE_CONNECTED) == 0)
{
pchan->bone->flag |= BONE_TRANSFORM;
}
else {
pchan->bone->flag &= ~BONE_TRANSFORM;
}
}
for (pchan = obact->pose->chanbase.first; pchan; pchan = pchan->next) {
if ((pchan->bone->flag & BONE_TRANSFORM) &&
/* check that our parents not transformed (if we have one) */
((pchan->bone->parent &&
BKE_armature_bone_flag_test_recursive(pchan->bone->parent, BONE_TRANSFORM)) == 0))
{
/* Get position in pchan (pose) space. */
float cursor_pose[3];
if (use_offset) {
mul_v3_m4v3(cursor_pose, obact->obmat, pchan->pose_mat[3]);
add_v3_v3(cursor_pose, offset_global);
mul_m4_v3(obact->imat, cursor_pose);
BKE_armature_loc_pose_to_bone(pchan, cursor_pose, cursor_pose);
}
else {
BKE_armature_loc_pose_to_bone(pchan, cursor_local, cursor_pose);
}
/* copy new position */
if ((pchan->protectflag & OB_LOCK_LOCX) == 0)
pchan->loc[0] = cursor_pose[0];
if ((pchan->protectflag & OB_LOCK_LOCY) == 0)
pchan->loc[1] = cursor_pose[1];
if ((pchan->protectflag & OB_LOCK_LOCZ) == 0)
pchan->loc[2] = cursor_pose[2];
/* auto-keyframing */
ED_autokeyframe_pchan(C, scene, obact, pchan, ks);
}
}
for (pchan = obact->pose->chanbase.first; pchan; pchan = pchan->next) {
pchan->bone->flag &= ~BONE_TRANSFORM;
}
obact->pose->flag |= (POSE_LOCKED | POSE_DO_UNLOCK);
DAG_id_tag_update(&obact->id, OB_RECALC_DATA);
}
else {
struct KeyingSet *ks = ANIM_get_keyingset_for_autokeying(scene, ANIM_KS_LOCATION_ID);
Main *bmain = CTX_data_main(C);
ListBase ctx_data_list;
CollectionPointerLink *ctx_ob;
Object *ob;
CTX_data_selected_editable_objects(C, &ctx_data_list);
/* reset flags */
for (ob = bmain->object.first; ob; ob = ob->id.next) {
ob->flag &= ~OB_DONE;
}
/* tag objects we're transforming */
for (ctx_ob = ctx_data_list.first; ctx_ob; ctx_ob = ctx_ob->next) {
ob = ctx_ob->ptr.data;
ob->flag |= OB_DONE;
}
for (ctx_ob = ctx_data_list.first; ctx_ob; ctx_ob = ctx_ob->next) {
ob = ctx_ob->ptr.data;
if ((ob->parent && BKE_object_flag_test_recursive(ob->parent, OB_DONE)) == 0) {
float cursor_parent[3]; /* parent-relative */
if (use_offset) {
add_v3_v3v3(cursor_parent, ob->obmat[3], offset_global);
}
else {
copy_v3_v3(cursor_parent, cursor_global);
}
sub_v3_v3(cursor_parent, ob->obmat[3]);
if (ob->parent) {
float originmat[3][3];
BKE_object_where_is_calc_ex(scene, NULL, ob, originmat);
invert_m3_m3(imat, originmat);
mul_m3_v3(imat, cursor_parent);
}
if ((ob->protectflag & OB_LOCK_LOCX) == 0)
ob->loc[0] += cursor_parent[0];
if ((ob->protectflag & OB_LOCK_LOCY) == 0)
ob->loc[1] += cursor_parent[1];
if ((ob->protectflag & OB_LOCK_LOCZ) == 0)
ob->loc[2] += cursor_parent[2];
/* auto-keyframing */
ED_autokeyframe_object(C, scene, ob, ks);
DAG_id_tag_update(&ob->id, OB_RECALC_OB);
}
}
BLI_freelistN(&ctx_data_list);
}
WM_event_add_notifier(C, NC_OBJECT | ND_TRANSFORM, NULL);
return OPERATOR_FINISHED;
}
void VIEW3D_OT_snap_selected_to_cursor(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Snap Selection to Cursor";
ot->description = "Snap selected item(s) to cursor";
ot->idname = "VIEW3D_OT_snap_selected_to_cursor";
/* api callbacks */
ot->exec = snap_sel_to_curs_exec;
ot->poll = ED_operator_view3d_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
/* rna */
RNA_def_boolean(ot->srna, "use_offset", 1, "Offset", "");
}
/* *************************************************** */
static int snap_curs_to_grid_exec(bContext *C, wmOperator *UNUSED(op))
{
Scene *scene = CTX_data_scene(C);
RegionView3D *rv3d = CTX_wm_region_data(C);
View3D *v3d = CTX_wm_view3d(C);
float gridf, *curs;
gridf = rv3d->gridview;
curs = ED_view3d_cursor3d_get(scene, v3d);
curs[0] = gridf * floorf(0.5f + curs[0] / gridf);
curs[1] = gridf * floorf(0.5f + curs[1] / gridf);
curs[2] = gridf * floorf(0.5f + curs[2] / gridf);
WM_event_add_notifier(C, NC_SPACE | ND_SPACE_VIEW3D, v3d); /* hrm */
return OPERATOR_FINISHED;
}
void VIEW3D_OT_snap_cursor_to_grid(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Snap Cursor to Grid";
ot->description = "Snap cursor to nearest grid division";
ot->idname = "VIEW3D_OT_snap_cursor_to_grid";
/* api callbacks */
ot->exec = snap_curs_to_grid_exec;
ot->poll = ED_operator_region_view3d_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
/* **************************************************** */
static void bundle_midpoint(Scene *scene, Object *ob, float vec[3])
{
MovieClip *clip = BKE_object_movieclip_get(scene, ob, false);
MovieTracking *tracking;
MovieTrackingObject *object;
bool ok = false;
float min[3], max[3], mat[4][4], pos[3], cammat[4][4];
if (!clip)
return;
tracking = &clip->tracking;
copy_m4_m4(cammat, ob->obmat);
BKE_tracking_get_camera_object_matrix(scene, ob, mat);
INIT_MINMAX(min, max);
for (object = tracking->objects.first; object; object = object->next) {
ListBase *tracksbase = BKE_tracking_object_get_tracks(tracking, object);
MovieTrackingTrack *track = tracksbase->first;
float obmat[4][4];
if (object->flag & TRACKING_OBJECT_CAMERA) {
copy_m4_m4(obmat, mat);
}
else {
float imat[4][4];
BKE_tracking_camera_get_reconstructed_interpolate(tracking, object, scene->r.cfra, imat);
invert_m4(imat);
mul_m4_m4m4(obmat, cammat, imat);
}
while (track) {
if ((track->flag & TRACK_HAS_BUNDLE) && TRACK_SELECTED(track)) {
ok = 1;
mul_v3_m4v3(pos, obmat, track->bundle_pos);
minmax_v3v3_v3(min, max, pos);
}
track = track->next;
}
}
if (ok) {
mid_v3_v3v3(vec, min, max);
}
}
static bool snap_curs_to_sel_ex(bContext *C, float cursor[3])
{
Object *obedit = CTX_data_edit_object(C);
Scene *scene = CTX_data_scene(C);
View3D *v3d = CTX_wm_view3d(C);
TransVertStore tvs = {NULL};
TransVert *tv;
float bmat[3][3], vec[3], min[3], max[3], centroid[3];
int count, a;
count = 0;
INIT_MINMAX(min, max);
zero_v3(centroid);
if (obedit) {
if (ED_transverts_check_obedit(obedit))
ED_transverts_create_from_obedit(&tvs, obedit, TM_ALL_JOINTS | TM_SKIP_HANDLES);
if (tvs.transverts_tot == 0) {
return false;
}
copy_m3_m4(bmat, obedit->obmat);
tv = tvs.transverts;
for (a = 0; a < tvs.transverts_tot; a++, tv++) {
copy_v3_v3(vec, tv->loc);
mul_m3_v3(bmat, vec);
add_v3_v3(vec, obedit->obmat[3]);
add_v3_v3(centroid, vec);
minmax_v3v3_v3(min, max, vec);
}
if (v3d->around == V3D_AROUND_CENTER_MEAN) {
mul_v3_fl(centroid, 1.0f / (float)tvs.transverts_tot);
copy_v3_v3(cursor, centroid);
}
else {
mid_v3_v3v3(cursor, min, max);
}
ED_transverts_free(&tvs);
}
else {
Object *obact = CTX_data_active_object(C);
if (obact && (obact->mode & OB_MODE_POSE)) {
bArmature *arm = obact->data;
bPoseChannel *pchan;
for (pchan = obact->pose->chanbase.first; pchan; pchan = pchan->next) {
if (arm->layer & pchan->bone->layer) {
if (pchan->bone->flag & BONE_SELECTED) {
copy_v3_v3(vec, pchan->pose_head);
mul_m4_v3(obact->obmat, vec);
add_v3_v3(centroid, vec);
minmax_v3v3_v3(min, max, vec);
count++;
}
}
}
}
else {
CTX_DATA_BEGIN (C, Object *, ob, selected_objects)
{
copy_v3_v3(vec, ob->obmat[3]);
/* special case for camera -- snap to bundles */
if (ob->type == OB_CAMERA) {
/* snap to bundles should happen only when bundles are visible */
if (v3d->flag2 & V3D_SHOW_RECONSTRUCTION) {
bundle_midpoint(scene, ob, vec);
}
}
add_v3_v3(centroid, vec);
minmax_v3v3_v3(min, max, vec);
count++;
}
CTX_DATA_END;
}
if (count == 0) {
return false;
}
if (v3d->around == V3D_AROUND_CENTER_MEAN) {
mul_v3_fl(centroid, 1.0f / (float)count);
copy_v3_v3(cursor, centroid);
}
else {
mid_v3_v3v3(cursor, min, max);
}
}
return true;
}
static int snap_curs_to_sel_exec(bContext *C, wmOperator *UNUSED(op))
{
Scene *scene = CTX_data_scene(C);
View3D *v3d = CTX_wm_view3d(C);
float *curs;
curs = ED_view3d_cursor3d_get(scene, v3d);
if (snap_curs_to_sel_ex(C, curs)) {
WM_event_add_notifier(C, NC_SPACE | ND_SPACE_VIEW3D, v3d);
return OPERATOR_FINISHED;
}
else {
return OPERATOR_CANCELLED;
}
}
void VIEW3D_OT_snap_cursor_to_selected(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Snap Cursor to Selected";
ot->description = "Snap cursor to center of selected item(s)";
ot->idname = "VIEW3D_OT_snap_cursor_to_selected";
/* api callbacks */
ot->exec = snap_curs_to_sel_exec;
ot->poll = ED_operator_view3d_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
/* ********************************************** */
/* this could be exported to be a generic function
* see: calculateCenterActive */
static bool snap_calc_active_center(bContext *C, const bool select_only, float r_center[3])
{
Object *obedit = CTX_data_edit_object(C);
if (obedit) {
if (ED_object_editmode_calc_active_center(obedit, select_only, r_center)) {
mul_m4_v3(obedit->obmat, r_center);
return true;
}
}
else {
Object *ob = CTX_data_active_object(C);
if (ob) {
if (ob->mode & OB_MODE_POSE) {
bPoseChannel *pchan = BKE_pose_channel_active(ob);
if (pchan) {
if (!select_only || (pchan->bone->flag & BONE_SELECTED)) {
copy_v3_v3(r_center, pchan->pose_head);
mul_m4_v3(ob->obmat, r_center);
return true;
}
}
}
else {
if (!select_only || (ob->flag & SELECT)) {
copy_v3_v3(r_center, ob->obmat[3]);
return true;
}
}
}
}
return false;
}
static int snap_curs_to_active_exec(bContext *C, wmOperator *UNUSED(op))
{
Scene *scene = CTX_data_scene(C);
View3D *v3d = CTX_wm_view3d(C);
float *curs;
curs = ED_view3d_cursor3d_get(scene, v3d);
if (snap_calc_active_center(C, false, curs)) {
WM_event_add_notifier(C, NC_SPACE | ND_SPACE_VIEW3D, v3d);
return OPERATOR_FINISHED;
}
else {
return OPERATOR_CANCELLED;
}
}
void VIEW3D_OT_snap_cursor_to_active(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Snap Cursor to Active";
ot->description = "Snap cursor to active item";
ot->idname = "VIEW3D_OT_snap_cursor_to_active";
/* api callbacks */
ot->exec = snap_curs_to_active_exec;
ot->poll = ED_operator_view3d_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
/* **************************************************** */
/*New Code - Snap Cursor to Center -*/
static int snap_curs_to_center_exec(bContext *C, wmOperator *UNUSED(op))
{
Scene *scene = CTX_data_scene(C);
View3D *v3d = CTX_wm_view3d(C);
float *curs;
curs = ED_view3d_cursor3d_get(scene, v3d);
zero_v3(curs);
WM_event_add_notifier(C, NC_SPACE | ND_SPACE_VIEW3D, v3d);
return OPERATOR_FINISHED;
}
void VIEW3D_OT_snap_cursor_to_center(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Snap Cursor to Center";
ot->description = "Snap cursor to the Center";
ot->idname = "VIEW3D_OT_snap_cursor_to_center";
/* api callbacks */
ot->exec = snap_curs_to_center_exec;
ot->poll = ED_operator_view3d_active;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
}
/* **************************************************** */
bool ED_view3d_minmax_verts(Object *obedit, float min[3], float max[3])
{
TransVertStore tvs = {NULL};
TransVert *tv;
float centroid[3], vec[3], bmat[3][3];
int a;
/* metaballs are an exception */
if (obedit->type == OB_MBALL) {
float ob_min[3], ob_max[3];
bool changed;
changed = BKE_mball_minmax_ex(obedit->data, ob_min, ob_max, obedit->obmat, SELECT);
if (changed) {
minmax_v3v3_v3(min, max, ob_min);
minmax_v3v3_v3(min, max, ob_max);
}
return changed;
}
if (ED_transverts_check_obedit(obedit))
ED_transverts_create_from_obedit(&tvs, obedit, TM_ALL_JOINTS);
if (tvs.transverts_tot == 0)
return false;
copy_m3_m4(bmat, obedit->obmat);
tv = tvs.transverts;
for (a = 0; a < tvs.transverts_tot; a++, tv++) {
copy_v3_v3(vec, (tv->flag & TX_VERT_USE_MAPLOC) ? tv->maploc : tv->loc);
mul_m3_v3(bmat, vec);
add_v3_v3(vec, obedit->obmat[3]);
add_v3_v3(centroid, vec);
minmax_v3v3_v3(min, max, vec);
}
ED_transverts_free(&tvs);
return true;
}
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