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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2004 Blender Foundation. All rights reserved. */
/** \file
* \ingroup edmesh
*/
#include "MEM_guardedalloc.h"
#include "DNA_object_types.h"
#include "BLI_math.h"
#include "BKE_context.h"
#include "BKE_editmesh.h"
#include "BKE_layer.h"
#include "BKE_report.h"
#include "RNA_access.h"
#include "RNA_define.h"
#include "WM_types.h"
#include "ED_mesh.h"
#include "ED_screen.h"
#include "ED_view3d.h"
#include "mesh_intern.h" /* own include */
/* -------------------------------------------------------------------- */
/** \name Screw Operator
* \{ */
static int edbm_screw_exec(bContext *C, wmOperator *op)
{
BMEdge *eed;
BMVert *eve, *v1, *v2;
BMIter iter, eiter;
float dvec[3], nor[3], cent[3], axis[3], v1_co_global[3], v2_co_global[3];
int steps, turns;
int valence;
uint objects_empty_len = 0;
uint failed_axis_len = 0;
uint failed_verts_len = 0;
turns = RNA_int_get(op->ptr, "turns");
steps = RNA_int_get(op->ptr, "steps");
RNA_float_get_array(op->ptr, "center", cent);
RNA_float_get_array(op->ptr, "axis", axis);
uint objects_len = 0;
ViewLayer *view_layer = CTX_data_view_layer(C);
Object **objects = BKE_view_layer_array_from_objects_in_edit_mode_unique_data(
view_layer, CTX_wm_view3d(C), &objects_len);
for (uint ob_index = 0; ob_index < objects_len; ob_index++) {
Object *obedit = objects[ob_index];
BMEditMesh *em = BKE_editmesh_from_object(obedit);
BMesh *bm = em->bm;
if (bm->totvertsel < 2) {
if (bm->totvertsel == 0) {
objects_empty_len++;
}
continue;
}
if (is_zero_v3(axis)) {
failed_axis_len++;
continue;
}
/* find two vertices with valence count == 1, more or less is wrong */
v1 = NULL;
v2 = NULL;
BM_ITER_MESH (eve, &iter, em->bm, BM_VERTS_OF_MESH) {
valence = 0;
BM_ITER_ELEM (eed, &eiter, eve, BM_EDGES_OF_VERT) {
if (BM_elem_flag_test(eed, BM_ELEM_SELECT)) {
valence++;
}
}
if (valence == 1) {
if (v1 == NULL) {
v1 = eve;
}
else if (v2 == NULL) {
v2 = eve;
}
else {
v1 = NULL;
break;
}
}
}
if (v1 == NULL || v2 == NULL) {
failed_verts_len++;
continue;
}
copy_v3_v3(nor, obedit->obmat[2]);
/* calculate dvec */
mul_v3_m4v3(v1_co_global, obedit->obmat, v1->co);
mul_v3_m4v3(v2_co_global, obedit->obmat, v2->co);
sub_v3_v3v3(dvec, v1_co_global, v2_co_global);
mul_v3_fl(dvec, 1.0f / steps);
if (dot_v3v3(nor, dvec) > 0.0f) {
negate_v3(dvec);
}
BMOperator spinop;
if (!EDBM_op_init(
em,
&spinop,
op,
"spin geom=%hvef cent=%v axis=%v dvec=%v steps=%i angle=%f space=%m4 use_duplicate=%b",
BM_ELEM_SELECT,
cent,
axis,
dvec,
turns * steps,
DEG2RADF(360.0f * turns),
obedit->obmat,
false)) {
continue;
}
BMO_op_exec(bm, &spinop);
EDBM_flag_disable_all(em, BM_ELEM_SELECT);
BMO_slot_buffer_hflag_enable(
bm, spinop.slots_out, "geom_last.out", BM_ALL_NOLOOP, BM_ELEM_SELECT, true);
if (!EDBM_op_finish(em, &spinop, op, true)) {
continue;
}
EDBM_update(obedit->data,
&(const struct EDBMUpdate_Params){
.calc_looptri = true,
.calc_normals = false,
.is_destructive = true,
});
}
MEM_freeN(objects);
if (failed_axis_len == objects_len - objects_empty_len) {
BKE_report(op->reports, RPT_ERROR, "Invalid/unset axis");
}
else if (failed_verts_len == objects_len - objects_empty_len) {
BKE_report(op->reports, RPT_ERROR, "You have to select a string of connected vertices too");
}
return OPERATOR_FINISHED;
}
/* get center and axis, in global coords */
static int edbm_screw_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
{
Scene *scene = CTX_data_scene(C);
RegionView3D *rv3d = ED_view3d_context_rv3d(C);
PropertyRNA *prop;
prop = RNA_struct_find_property(op->ptr, "center");
if (!RNA_property_is_set(op->ptr, prop)) {
RNA_property_float_set_array(op->ptr, prop, scene->cursor.location);
}
if (rv3d) {
prop = RNA_struct_find_property(op->ptr, "axis");
if (!RNA_property_is_set(op->ptr, prop)) {
RNA_property_float_set_array(op->ptr, prop, rv3d->viewinv[1]);
}
}
return edbm_screw_exec(C, op);
}
void MESH_OT_screw(wmOperatorType *ot)
{
/* identifiers */
ot->name = "Screw";
ot->description =
"Extrude selected vertices in screw-shaped rotation around the cursor in indicated viewport";
ot->idname = "MESH_OT_screw";
/* api callbacks */
ot->invoke = edbm_screw_invoke;
ot->exec = edbm_screw_exec;
ot->poll = ED_operator_editmesh;
/* flags */
ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
/* props */
RNA_def_int(ot->srna, "steps", 9, 1, 100000, "Steps", "Steps", 3, 256);
RNA_def_int(ot->srna, "turns", 1, 1, 100000, "Turns", "Turns", 1, 256);
RNA_def_float_vector_xyz(ot->srna,
"center",
3,
NULL,
-1e12f,
1e12f,
"Center",
"Center in global view space",
-1e4f,
1e4f);
RNA_def_float_vector(
ot->srna, "axis", 3, NULL, -1.0f, 1.0f, "Axis", "Axis in global view space", -1.0f, 1.0f);
}
/** \} */
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