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test/source/blender/bmesh/operators/bmo_beautify.cc
Campbell Barton e955c94ed3 License Headers: Set copyright to "Blender Authors", add AUTHORS
Listing the "Blender Foundation" as copyright holder implied the Blender
Foundation holds copyright to files which may include work from many
developers.

While keeping copyright on headers makes sense for isolated libraries,
Blender's own code may be refactored or moved between files in a way
that makes the per file copyright holders less meaningful.

Copyright references to the "Blender Foundation" have been replaced with
"Blender Authors", with the exception of `./extern/` since these this
contains libraries which are more isolated, any changed to license
headers there can be handled on a case-by-case basis.

Some directories in `./intern/` have also been excluded:

- `./intern/cycles/` it's own `AUTHORS` file is planned.
- `./intern/opensubdiv/`.

An "AUTHORS" file has been added, using the chromium projects authors
file as a template.

Design task: #110784

Ref !110783.
2023-08-16 00:20:26 +10:00

70 lines
1.9 KiB
C++

/* SPDX-FileCopyrightText: 2023 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup bmesh
*
* Beautify the mesh by rotating edges between triangles
* to more attractive positions until no more rotations can be made.
*/
#include "MEM_guardedalloc.h"
#include "bmesh.h"
#include "bmesh_tools.h"
#include "intern/bmesh_operators_private.h"
#define ELE_NEW 1
#define FACE_MARK 2
void bmo_beautify_fill_exec(BMesh *bm, BMOperator *op)
{
BMIter iter;
BMOIter siter;
BMFace *f;
BMEdge *e;
const bool use_restrict_tag = BMO_slot_bool_get(op->slots_in, "use_restrict_tag");
const short flag =
((use_restrict_tag ? VERT_RESTRICT_TAG : 0) |
/* Enable to avoid iterative edge rotation to cause the direction of faces to flip. */
EDGE_RESTRICT_DEGENERATE);
const short method = short(BMO_slot_int_get(op->slots_in, "method"));
BMEdge **edge_array;
int edge_array_len = 0;
BMO_ITER (f, &siter, op->slots_in, "faces", BM_FACE) {
if (f->len == 3) {
BMO_face_flag_enable(bm, f, FACE_MARK);
}
}
BM_ITER_MESH (e, &iter, bm, BM_EDGES_OF_MESH) {
BM_elem_flag_disable(e, BM_ELEM_TAG);
}
/* will over alloc if some edges can't be rotated */
edge_array = static_cast<BMEdge **>(MEM_mallocN(
sizeof(*edge_array) * size_t(BMO_slot_buffer_len(op->slots_in, "edges")), __func__));
BMO_ITER (e, &siter, op->slots_in, "edges", BM_EDGE) {
/* edge is manifold and can be rotated */
if (BM_edge_rotate_check(e) &&
/* faces are tagged */
BMO_face_flag_test(bm, e->l->f, FACE_MARK) &&
BMO_face_flag_test(bm, e->l->radial_next->f, FACE_MARK))
{
edge_array[edge_array_len] = e;
edge_array_len++;
}
}
BM_mesh_beautify_fill(
bm, edge_array, edge_array_len, flag, method, ELE_NEW, FACE_MARK | ELE_NEW);
MEM_freeN(edge_array);
BMO_slot_buffer_from_enabled_flag(bm, op, op->slots_out, "geom.out", BM_EDGE | BM_FACE, ELE_NEW);
}