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/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/** \file
* \ingroup bmesh
*/
float BM_loop_uv_calc_edge_length_squared(const BMLoop *l,
int cd_loop_uv_offset) ATTR_WARN_UNUSED_RESULT
ATTR_NONNULL();
float BM_loop_uv_calc_edge_length(const BMLoop *l, int cd_loop_uv_offset) ATTR_WARN_UNUSED_RESULT
ATTR_NONNULL();
/**
* Computes the UV center of a face, using the mean average weighted by edge length.
*
* See #BM_face_calc_center_median_weighted for matching spatial functionality.
*
* \param aspect: Calculate the center scaling by these values, and finally dividing.
* Since correct weighting depends on having the correct aspect.
*/
void BM_face_uv_calc_center_median_weighted(const BMFace *f,
const float aspect[2],
int cd_loop_uv_offset,
float r_cent[2]) ATTR_NONNULL();
void BM_face_uv_calc_center_median(const BMFace *f, int cd_loop_uv_offset, float r_cent[2])
ATTR_NONNULL();
/**
* Calculate the UV cross product (use the sign to check the winding).
*/
float BM_face_uv_calc_cross(const BMFace *f, int cd_loop_uv_offset) ATTR_WARN_UNUSED_RESULT
ATTR_NONNULL();
void BM_face_uv_minmax(const BMFace *f, float min[2], float max[2], int cd_loop_uv_offset);
bool BM_loop_uv_share_edge_check_with_limit(BMLoop *l_a,
BMLoop *l_b,
const float limit[2],
int cd_loop_uv_offset) ATTR_WARN_UNUSED_RESULT
ATTR_NONNULL();
/**
* Check if two loops that share an edge also have the same UV coordinates.
*/
bool BM_loop_uv_share_edge_check(BMLoop *l_a,
BMLoop *l_b,
int cd_loop_uv_offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
/**
* Check if two loops that share a vertex also have the same UV coordinates.
*/
bool BM_edge_uv_share_vert_check(BMEdge *e, BMLoop *l_a, BMLoop *l_b, int cd_loop_uv_offset)
ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
/**
* Check if two loops that share a vertex also have the same UV coordinates.
*/
bool BM_loop_uv_share_vert_check(BMLoop *l_a,
BMLoop *l_b,
int cd_loop_uv_offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
/**
* Check if the point is inside the UV face.
*/
bool BM_face_uv_point_inside_test(const BMFace *f,
const float co[2],
int cd_loop_uv_offset) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
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