#include <algorithm>
#include <cmath>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include "MEM_guardedalloc.h"
#include "BLI_array_utils.h"
#include "BLI_blenlib.h"
#include "BLI_ghash.h"
#include "BLI_hash.h"
#include "BLI_heap.h"
#include "BLI_math_geom.h"
#include "BLI_math_matrix.h"
#include "BLI_math_rotation.h"
#include "BLI_math_vector.h"
#include "BLI_math_vector.hh"
#include "BLI_math_vector_types.hh"
#include "BLI_polyfill_2d.h"
#include "BLI_span.hh"
#include "BLI_string_utils.hh"
#include "DNA_gpencil_legacy_types.h"
#include "DNA_gpencil_modifier_types.h"
#include "DNA_material_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_scene_types.h"
#include "BKE_attribute.hh"
#include "BKE_deform.hh"
#include "BKE_gpencil_curve_legacy.h"
#include "BKE_gpencil_geom_legacy.h"
#include "BKE_gpencil_legacy.h"
#include "BKE_material.h"
#include "BKE_object.hh"
#include "BKE_object_types.hh"
#include "DEG_depsgraph_query.hh"

Classes
struct	tGPDeleteIsland

Functions
void	BKE_gpencil_transform (bGPdata *gpd, const float mat[4][4])

int	BKE_gpencil_stroke_point_count (const bGPdata *gpd)

void	BKE_gpencil_point_coords_get (bGPdata gpd, GPencilPointCoordinates elem_data)

void	BKE_gpencil_point_coords_apply (bGPdata gpd, const GPencilPointCoordinates elem_data)

void	BKE_gpencil_point_coords_apply_with_mat4 (bGPdata gpd, const GPencilPointCoordinates elem_data, const float mat[4][4])

void	BKE_gpencil_stroke_set_random_color (bGPDstroke *gps)

void	BKE_gpencil_stroke_flip (bGPDstroke *gps)

static void	gpencil_stroke_join_islands (bGPdata gpd, bGPDframe gpf, bGPDstroke gps_first, bGPDstroke gps_last)

bGPDstroke *	BKE_gpencil_stroke_delete_tagged_points (bGPdata gpd, bGPDframe gpf, bGPDstroke gps, bGPDstroke next_stroke, int tag_flags, const bool select, const bool flat_cap, const int limit)

static void	gpencil_stroke_copy_point (bGPDstroke gps, MDeformVert dvert, bGPDspoint *point, const float delta[3], float pressure, float strength, float deltatime)

void	BKE_gpencil_stroke_join (bGPDstroke gps_a, bGPDstroke gps_b, const bool leave_gaps, const bool fit_thickness, const bool smooth, bool auto_flip)

void	BKE_gpencil_stroke_to_view_space (bGPDstroke *gps, float viewmat[4][4], const float diff_mat[4][4])

void	BKE_gpencil_stroke_from_view_space (bGPDstroke *gps, float viewinv[4][4], const float diff_mat[4][4])

float	BKE_gpencil_stroke_average_pressure_get (bGPDstroke *gps)

bool	BKE_gpencil_stroke_is_pressure_constant (bGPDstroke *gps)

Grease Pencil Object: Bound-box Support
bool	BKE_gpencil_stroke_minmax (const bGPDstroke *gps, const bool use_select, float r_min[3], float r_max[3])

std::optional< blender::Bounds< blender::float3 > >	BKE_gpencil_data_minmax (const bGPdata *gpd)

void	BKE_gpencil_centroid_3d (bGPdata *gpd, float r_centroid[3])

void	BKE_gpencil_stroke_boundingbox_calc (bGPDstroke *gps)

Stroke Smooth Positions
bool	BKE_gpencil_stroke_smooth_point (bGPDstroke gps, int point_index, float influence, int iterations, const bool smooth_caps, const bool keep_shape, bGPDstroke r_gps)

Stroke Smooth Strength
bool	BKE_gpencil_stroke_smooth_strength (bGPDstroke gps, int point_index, float influence, int iterations, bGPDstroke r_gps)

Stroke Smooth Thickness
bool	BKE_gpencil_stroke_smooth_thickness (bGPDstroke gps, int point_index, float influence, int iterations, bGPDstroke r_gps)

Stroke Smooth UV
bool	BKE_gpencil_stroke_smooth_uv (bGPDstroke gps, int point_index, float influence, int iterations, bGPDstroke r_gps)

void	BKE_gpencil_stroke_smooth (bGPDstroke gps, const float influence, const int iterations, const bool smooth_position, const bool smooth_strength, const bool smooth_thickness, const bool smooth_uv, const bool keep_shape, const float weights)

void	BKE_gpencil_stroke_2d_flat (const bGPDspoint points, int totpoints, float(points2d)[2], int *r_direction)

void	BKE_gpencil_stroke_2d_flat_ref (const bGPDspoint ref_points, int ref_totpoints, const bGPDspoint points, int totpoints, float(points2d)[2], const float scale, int r_direction)

static void	gpencil_calc_stroke_fill_uv (const float(points2d)[2], bGPDstroke gps, const float minv[2], const float maxv[2], float(*r_uv)[2])

Stroke Fill Triangulate
void	BKE_gpencil_stroke_fill_triangulate (bGPDstroke *gps)

void	BKE_gpencil_stroke_uv_update (bGPDstroke *gps)

void	BKE_gpencil_stroke_geometry_update (bGPdata , bGPDstroke gps)

float	BKE_gpencil_stroke_length (const bGPDstroke *gps, bool use_3d)

float	BKE_gpencil_stroke_segment_length (const bGPDstroke *gps, const int start_index, const int end_index, bool use_3d)

bool	BKE_gpencil_stroke_trim (bGPdata gpd, bGPDstroke gps)

bool	BKE_gpencil_stroke_close (bGPDstroke *gps)

Normal Calculation
void	BKE_gpencil_stroke_normal (const bGPDstroke *gps, float r_normal[3])

Function Documentation

◆ BKE_gpencil_centroid_3d()

void BKE_gpencil_centroid_3d	(	struct bGPdata *	gpd,
		float	r_centroid[3] )

Compute center of bounding box.

Parameters

gpd	Grease pencil data-block
r_centroid	Location of the center

Definition at line 110 of file gpencil_geom_legacy.cc.

References BKE_gpencil_data_minmax(), bounds(), copy_v3_v3(), and blender::math::midpoint().

Referenced by blender::ed::object::object_origin_set_exec().

◆ BKE_gpencil_data_minmax()

std::optional< blender::Bounds< blender::float3 > > BKE_gpencil_data_minmax ( const bGPdata * gpd )

Definition at line 86 of file gpencil_geom_legacy.cc.

References BKE_gpencil_stroke_minmax(), INIT_MINMAX, bGPdata::layers, LISTBASE_FOREACH, max, min, and bGPDframe::strokes.

Referenced by BKE_gpencil_centroid_3d().

◆ BKE_gpencil_point_coords_apply()

void BKE_gpencil_point_coords_apply	(	struct bGPdata *	gpd,
		const GPencilPointCoordinates *	elem_data )

Note: Used for "move only origins" in object_data_transform.cc.

Definition at line 1141 of file gpencil_geom_legacy.cc.

References BKE_gpencil_stroke_geometry_update(), GPencilPointCoordinates::co, copy_v3_v3(), bGPdata::layers, LISTBASE_FOREACH, bGPDstroke::points, bGPDspoint::pressure, GPencilPointCoordinates::pressure, bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by blender::ed::object::data_xform_restore().

◆ BKE_gpencil_point_coords_apply_with_mat4()

void BKE_gpencil_point_coords_apply_with_mat4	(	struct bGPdata *	gpd,
		const GPencilPointCoordinates *	elem_data,
		const float	mat[4][4] )

Note: Used for "move only origins" in object_data_transform.cc.

Definition at line 1174 of file gpencil_geom_legacy.cc.

References BKE_gpencil_stroke_geometry_update(), GPencilPointCoordinates::co, bGPdata::layers, LISTBASE_FOREACH, mat4_to_scale(), mul_v3_m4v3(), bGPDstroke::points, bGPDspoint::pressure, GPencilPointCoordinates::pressure, bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by blender::ed::object::data_xform_by_mat4().

◆ BKE_gpencil_point_coords_get()

void BKE_gpencil_point_coords_get	(	struct bGPdata *	gpd,
		GPencilPointCoordinates *	elem_data )

Note: Used for "move only origins" in object_data_transform.cc.

Definition at line 1111 of file gpencil_geom_legacy.cc.

References GPencilPointCoordinates::co, copy_v3_v3(), bGPdata::layers, LISTBASE_FOREACH, bGPDstroke::points, bGPDspoint::pressure, GPencilPointCoordinates::pressure, bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by blender::ed::object::data_xform_create_ex().

◆ BKE_gpencil_stroke_2d_flat()

void BKE_gpencil_stroke_2d_flat	(	const bGPDspoint *	points,
		int	totpoints,
		float(*)	points2d[2],
		int *	r_direction )

Definition at line 488 of file gpencil_geom_legacy.cc.

References BLI_assert, copy_v3_v3(), cross(), cross_v3_v3v3(), dot_v3v3(), int, mul_v3_v3fl(), normalize_v3(), sub_v3_v3v3(), and bGPDspoint::x.

Referenced by BKE_gpencil_stroke_fill_triangulate().

◆ BKE_gpencil_stroke_2d_flat_ref()

void BKE_gpencil_stroke_2d_flat_ref	(	const bGPDspoint *	ref_points,
		int	ref_totpoints,
		const bGPDspoint *	points,
		int	totpoints,
		float(*)	points2d[2],
		const float	scale,
		int *	r_direction )

Definition at line 562 of file gpencil_geom_legacy.cc.

References add_v3_v3v3(), BLI_assert, copy_v3_v3(), cross_v3_v3v3(), dot_v3v3(), int, mul_v3_fl(), mul_v3_v3fl(), normalize_v3(), sub_v3_v3v3(), and bGPDspoint::x.

◆ BKE_gpencil_stroke_average_pressure_get()

float BKE_gpencil_stroke_average_pressure_get ( struct bGPDstroke * gps )

Get average pressure.

Definition at line 1714 of file gpencil_geom_legacy.cc.

References float, bGPDstroke::points, bGPDspoint::pressure, and bGPDstroke::totpoints.

◆ BKE_gpencil_stroke_boundingbox_calc()

void BKE_gpencil_stroke_boundingbox_calc ( struct bGPDstroke * gps )

Compute stroke bounding box.

Parameters

gps	Grease pencil Stroke

Definition at line 117 of file gpencil_geom_legacy.cc.

References BKE_gpencil_stroke_minmax(), bGPDstroke::boundbox_max, bGPDstroke::boundbox_min, and INIT_MINMAX.

Referenced by BKE_gpencil_stroke_geometry_update().

◆ BKE_gpencil_stroke_close()

bool BKE_gpencil_stroke_close ( struct bGPDstroke * gps )

Close grease pencil stroke.

Parameters

gps	Stroke to close

Definition at line 925 of file gpencil_geom_legacy.cc.

References BKE_defvert_ensure_index(), bGPDstroke::dvert, MDeformVert::dw, bGPDspoint::flag, bGPDstroke::flag, float, GP_SPOINT_SELECT, GP_STROKE_CYCLIC, GP_STROKE_SELECT, interp_v3_v3v3(), interp_v4_v4v4(), interpf(), len_v3v3(), MEM_recallocN, bGPDstroke::points, bGPDspoint::pressure, bGPDspoint::strength, bGPDstroke::totpoints, MDeformVert::totweight, bGPDspoint::vert_color, MDeformWeight::weight, and bGPDspoint::x.

◆ BKE_gpencil_stroke_delete_tagged_points()

bGPDstroke * BKE_gpencil_stroke_delete_tagged_points	(	struct bGPdata *	gpd,
		struct bGPDframe *	gpf,
		struct bGPDstroke *	gps,
		struct bGPDstroke *	next_stroke,
		int	tag_flags,
		bool	select,
		bool	flat_cap,
		int	limit )

Split the given stroke into several new strokes, partitioning it based on whether the stroke points have a particular flag is set (e.g. GP_SPOINT_SELECT in most cases, but not always).

Definition at line 1334 of file gpencil_geom_legacy.cc.

References BKE_gpencil_free_stroke(), BKE_gpencil_stroke_duplicate(), BKE_gpencil_stroke_geometry_update(), BLI_addtail(), BLI_insertlinkbefore(), BLI_remlink(), bGPDstroke::caps, double(), bGPDstroke::dvert, MDeformVert::dw, e, tGPDeleteIsland::end_idx, bGPDspoint::flag, bGPDstroke::flag, GP_SPOINT_TAG, GP_STROKE_CAP_FLAT, GP_STROKE_CYCLIC, gpencil_stroke_join_islands(), bGPDstroke::inittime, is_cyclic(), max_ff(), MEM_callocN, MEM_dupallocN, MEM_freeN(), bGPDstroke::points, select(), tGPDeleteIsland::start_idx, bGPDframe::strokes, bGPDspoint::time, and bGPDstroke::totpoints.

Referenced by annotation_stroke_eraser_dostroke().

◆ BKE_gpencil_stroke_fill_triangulate()

void BKE_gpencil_stroke_fill_triangulate ( struct bGPDstroke * gps )

Triangulate stroke to generate data for filling areas.

Parameters

gps	Grease pencil stroke

Definition at line 691 of file gpencil_geom_legacy.cc.

References ARRAY_SET_ITEMS, BKE_gpencil_stroke_2d_flat(), BLI_assert, BLI_polyfill_calc(), copy_v2_v2(), float, gpencil_calc_stroke_fill_uv(), MEM_callocN, MEM_freeN(), MEM_mallocN, MEM_SAFE_FREE, bGPDstroke::points, bGPDstroke::tot_triangles, bGPDstroke::totpoints, bGPDstroke::triangles, bGPDspoint::uv_fill, and bGPDtriangle::verts.

Referenced by BKE_gpencil_stroke_geometry_update().

◆ BKE_gpencil_stroke_flip()

void BKE_gpencil_stroke_flip ( struct bGPDstroke * gps )

Flip stroke.

Definition at line 1225 of file gpencil_geom_legacy.cc.

References BLI_array_reverse, bGPDstroke::dvert, bGPDstroke::points, and bGPDstroke::totpoints.

Referenced by BKE_gpencil_stroke_join().

◆ BKE_gpencil_stroke_from_view_space()

void BKE_gpencil_stroke_from_view_space	(	struct bGPDstroke *	gps,
		float	viewinv[4][4],
		const float	diff_mat[4][4] )

Stroke from view space Transforms a stroke from view space back to world space. Inverse of BKE_gpencil_stroke_to_view_space

Note: also takes care of parent space transform.

Definition at line 1698 of file gpencil_geom_legacy.cc.

References invert_m4_m4(), mul_m4_v3(), mul_v3_m4v3(), bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::x.

◆ BKE_gpencil_stroke_geometry_update()

void BKE_gpencil_stroke_geometry_update	(	struct bGPdata *	gpd,
		struct bGPDstroke *	gps )

Recalc all internal geometry data for the stroke

Parameters

gpd	Grease pencil data-block
gps	Grease pencil stroke

Definition at line 765 of file gpencil_geom_legacy.cc.

References BKE_gpencil_stroke_boundingbox_calc(), BKE_gpencil_stroke_fill_triangulate(), BKE_gpencil_stroke_uv_update(), MEM_SAFE_FREE, bGPDstroke::tot_triangles, bGPDstroke::totpoints, and bGPDstroke::triangles.

Referenced by BKE_gpencil_point_coords_apply(), BKE_gpencil_point_coords_apply_with_mat4(), BKE_gpencil_stroke_delete_tagged_points(), BKE_gpencil_stroke_trim(), BKE_gpencil_transform(), blo_do_versions_280(), gpencil_stroke_join_islands(), blender::ed::object::object_origin_set_exec(), and recalcData_gpencil_strokes().

◆ BKE_gpencil_stroke_is_pressure_constant()

bool BKE_gpencil_stroke_is_pressure_constant ( struct bGPDstroke * gps )

Check if the thickness of the stroke is constant.

Definition at line 1730 of file gpencil_geom_legacy.cc.

References bGPDstroke::points, bGPDspoint::pressure, and bGPDstroke::totpoints.

◆ BKE_gpencil_stroke_join()

void BKE_gpencil_stroke_join	(	struct bGPDstroke *	gps_a,
		struct bGPDstroke *	gps_b,
		bool	leave_gaps,
		bool	fit_thickness,
		bool	smooth,
		bool	auto_flip )

Join two strokes using the shortest distance (reorder stroke if necessary).

Parameters

auto_flip Flip the stroke if the join between two strokes is not end->start points.

Definition at line 1552 of file gpencil_geom_legacy.cc.

References BKE_gpencil_stroke_flip(), BKE_gpencil_stroke_smooth_point(), copy_v3_v3(), bGPDstroke::dvert, ELEM, float, gpencil_stroke_copy_point(), len, len_squared_v3v3(), point, bGPDstroke::points, bGPDspoint::pressure, bGPDspoint::strength, bGPDstroke::thickness, bGPDstroke::totpoints, and bGPDspoint::x.

◆ BKE_gpencil_stroke_length()

float BKE_gpencil_stroke_length	(	const bGPDstroke *	gps,
		bool	use_3d )

Definition at line 786 of file gpencil_geom_legacy.cc.

References len_v2v2(), len_v3v3(), bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::x.

◆ BKE_gpencil_stroke_minmax()

bool BKE_gpencil_stroke_minmax	(	const bGPDstroke *	gps,
		const bool	use_select,
		float	r_min[3],
		float	r_max[3] )

Definition at line 58 of file gpencil_geom_legacy.cc.

References GP_SPOINT_SELECT, minmax_v3v3_v3(), bGPDstroke::points, and bGPDstroke::totpoints.

Referenced by BKE_gpencil_data_minmax(), and BKE_gpencil_stroke_boundingbox_calc().

◆ BKE_gpencil_stroke_normal()

void BKE_gpencil_stroke_normal	(	const bGPDstroke *	gps,
		float	r_normal[3] )

Definition at line 1020 of file gpencil_geom_legacy.cc.

References cross_v3_v3v3(), int, normalize_v3(), bGPDstroke::points, sub_v3_v3v3(), bGPDstroke::totpoints, bGPDspoint::x, and zero_v3().

◆ BKE_gpencil_stroke_point_count()

int BKE_gpencil_stroke_point_count ( const bGPdata * gpd )

Definition at line 1085 of file gpencil_geom_legacy.cc.

References bGPdata::layers, LISTBASE_FOREACH, and bGPDstroke::totpoints.

◆ BKE_gpencil_stroke_segment_length()

float BKE_gpencil_stroke_segment_length	(	const bGPDstroke *	gps,
		const int	start_index,
		const int	end_index,
		bool	use_3d )

Definition at line 806 of file gpencil_geom_legacy.cc.

References len_v2v2(), len_v3v3(), bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::x.

◆ BKE_gpencil_stroke_set_random_color()

void BKE_gpencil_stroke_set_random_color ( struct bGPDstroke * gps )

Set a random color to stroke using vertex color.

Parameters

gps Stroke

Definition at line 1210 of file gpencil_geom_legacy.cc.

References BLI_assert, BLI_hash_int_01(), BLI_hash_int_2d(), copy_v4_v4(), bGPDstroke::points, bGPDstroke::totpoints, bGPDspoint::vert_color, bGPDspoint::x, bGPDspoint::y, and bGPDspoint::z.

◆ BKE_gpencil_stroke_smooth()

void BKE_gpencil_stroke_smooth	(	struct bGPDstroke *	gps,
		const float	influence,
		const int	iterations,
		const bool	smooth_position,
		const bool	smooth_strength,
		const bool	smooth_thickness,
		const bool	smooth_uv,
		const bool	keep_shape,
		const float *	weights )

Apply smooth operation to the stroke.

Parameters

gps	Stroke to smooth
influence	The interpolation factor for the smooth and the original stroke
iterations	Radius of points to consider, equivalent to iterations
smooth_position	Smooth point locations
smooth_strength	Smooth point strength
smooth_thickness	Smooth point thickness
smooth_uv	Smooth uv rotation/factor
keep_shape	Use different distribution for smooth locations to keep the shape
weights	per point weights to multiply influence with (optional, can be null)

Definition at line 438 of file gpencil_geom_legacy.cc.

References BKE_gpencil_stroke_smooth_point(), BKE_gpencil_stroke_smooth_strength(), BKE_gpencil_stroke_smooth_thickness(), BKE_gpencil_stroke_smooth_uv(), MEM_dupallocN, MEM_freeN(), bGPDstroke::points, and bGPDstroke::totpoints.

◆ BKE_gpencil_stroke_smooth_point()

bool BKE_gpencil_stroke_smooth_point	(	struct bGPDstroke *	gps,
		int	point_index,
		float	influence,
		int	iterations,
		bool	smooth_caps,
		bool	keep_shape,
		struct bGPDstroke *	r_gps )

Apply smooth position to stroke point.

Parameters

gps	Stroke to smooth
i	Point index
inf	Amount of smoothing to apply
iterations	Radius of points to consider, equivalent to iterations
smooth_caps	Apply smooth to stroke extremes
keep_shape	Smooth out fine details first
r_gps	Stroke to put the result into

Definition at line 129 of file gpencil_geom_legacy.cc.

References add_v3_v3(), copy_v3_v3(), double(), ELEM, exp(), bGPDstroke::flag, float, GP_STROKE_CYCLIC, interp_v3_v3v3(), is_cyclic(), M_SQRT3, madd_v3_v3fl(), mul_v3_fl(), bGPDstroke::points, sub_v3_v3v3(), bGPDstroke::totpoints, w(), and bGPDspoint::x.

Referenced by BKE_gpencil_stroke_join(), and BKE_gpencil_stroke_smooth().

◆ BKE_gpencil_stroke_smooth_strength()

bool BKE_gpencil_stroke_smooth_strength	(	struct bGPDstroke *	gps,
		int	point_index,
		float	influence,
		int	iterations,
		struct bGPDstroke *	r_gps )

Apply smooth strength to stroke point.

Parameters

gps	Stroke to smooth
point_index	Point index
influence	Amount of smoothing to apply
iterations	Radius of points to consider, equivalent to iterations
r_gps	Stroke to put the result into

Definition at line 251 of file gpencil_geom_legacy.cc.

References CLAMP_MAX, CLAMP_MIN, bGPDstroke::flag, float, GP_STROKE_CYCLIC, is_cyclic(), bGPDstroke::points, bGPDspoint::strength, bGPDstroke::totpoints, and w().

Referenced by BKE_gpencil_stroke_smooth().

◆ BKE_gpencil_stroke_smooth_thickness()

bool BKE_gpencil_stroke_smooth_thickness	(	struct bGPDstroke *	gps,
		int	point_index,
		float	influence,
		int	iterations,
		struct bGPDstroke *	r_gps )

Apply smooth for thickness to stroke point (use pressure).

Parameters

gps	Stroke to smooth
point_index	Point index
influence	Amount of smoothing to apply
iterations	Radius of points to consider, equivalent to iterations
r_gps	Stroke to put the result into

Definition at line 309 of file gpencil_geom_legacy.cc.

References CLAMP_MAX, CLAMP_MIN, bGPDstroke::flag, float, GP_STROKE_CYCLIC, is_cyclic(), bGPDstroke::points, bGPDspoint::pressure, bGPDstroke::totpoints, and w().

Referenced by BKE_gpencil_stroke_smooth().

◆ BKE_gpencil_stroke_smooth_uv()

bool BKE_gpencil_stroke_smooth_uv	(	struct bGPDstroke *	gps,
		int	point_index,
		float	influence,
		int	iterations,
		struct bGPDstroke *	r_gps )

Apply smooth for UV rotation/factor to stroke point.

Parameters

gps	Stroke to smooth
point_index	Point index
influence	Amount of smoothing to apply
iterations	Radius of points to consider, equivalent to iterations
r_gps	Stroke to put the result into

Definition at line 367 of file gpencil_geom_legacy.cc.

References ELEM, bGPDstroke::flag, float, GP_STROKE_CYCLIC, is_cyclic(), bGPDstroke::points, bGPDstroke::totpoints, bGPDspoint::uv_fac, bGPDspoint::uv_rot, and w().

Referenced by BKE_gpencil_stroke_smooth().

◆ BKE_gpencil_stroke_to_view_space()

void BKE_gpencil_stroke_to_view_space	(	struct bGPDstroke *	gps,
		float	viewmat[4][4],
		const float	diff_mat[4][4] )

Stroke to view space Transforms a stroke to view space. This allows for manipulations in 2D but also easy conversion back to 3D.

Note: also takes care of parent space transform.

Definition at line 1685 of file gpencil_geom_legacy.cc.

References mul_m4_v3(), mul_v3_m4v3(), bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::x.

◆ BKE_gpencil_stroke_trim()

bool BKE_gpencil_stroke_trim	(	struct bGPdata *	gpd,
		struct bGPDstroke *	gps )

Trim stroke to the first intersection or loop.

Parameters

gps	Stroke data

Definition at line 833 of file gpencil_geom_legacy.cc.

References b, BKE_gpencil_stroke_geometry_update(), closest_to_line_v3(), copy_v3_v3(), bGPDstroke::dvert, MDeformVert::dw, ELEM, intersect(), isect_line_line_v3(), len_v3(), MEM_dupallocN, MEM_recallocN, MEM_SAFE_FREE, bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::x.

◆ BKE_gpencil_stroke_uv_update()

void BKE_gpencil_stroke_uv_update ( struct bGPDstroke * gps )

Update Stroke UV data.

Parameters

gps	Grease pencil stroke

Definition at line 750 of file gpencil_geom_legacy.cc.

References len_v3v3(), bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::uv_fac.

Referenced by BKE_gpencil_stroke_geometry_update().

◆ BKE_gpencil_transform()

void BKE_gpencil_transform	(	struct bGPdata *	gpd,
		const float	mat[4][4] )

Apply grease pencil Transforms.

Parameters

gpd	Grease pencil data-block
mat	Transformation matrix

Definition at line 1052 of file gpencil_geom_legacy.cc.

References BKE_gpencil_stroke_geometry_update(), bGPdata::layers, LISTBASE_FOREACH, mat4_to_scale(), mul_m4_v3(), bGPDstroke::points, bGPDspoint::pressure, bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by blender::ed::object::apply_objects_internal().

◆ gpencil_calc_stroke_fill_uv()

static void gpencil_calc_stroke_fill_uv	(	const float(*)	points2d[2],
		bGPDstroke *	gps,
		const float	minv[2],
		const float	maxv[2],
		float(*)	r_uv[2] )

static

Definition at line 647 of file gpencil_geom_legacy.cc.

References add_v2_v2(), cos(), mul_v2_fl(), bGPDstroke::totpoints, bGPDstroke::uv_rotation, bGPDstroke::uv_scale, and bGPDstroke::uv_translation.

Referenced by BKE_gpencil_stroke_fill_triangulate().

◆ gpencil_stroke_copy_point()

static void gpencil_stroke_copy_point	(	bGPDstroke *	gps,
		MDeformVert *	dvert,
		bGPDspoint *	point,
		const float	delta[3],
		float	pressure,
		float	strength,
		float	deltatime )

static

Definition at line 1503 of file gpencil_geom_legacy.cc.

References copy_v4_v4(), bGPDstroke::dvert, MDeformVert::dw, bGPDspoint::flag, MEM_callocN, MEM_dupallocN, MEM_reallocN, bGPDstroke::points, bGPDspoint::pressure, bGPDspoint::strength, bGPDspoint::time, bGPDstroke::totpoints, MDeformVert::totweight, bGPDspoint::vert_color, bGPDspoint::x, bGPDspoint::y, and bGPDspoint::z.

Referenced by BKE_gpencil_stroke_join().

◆ gpencil_stroke_join_islands()

static void gpencil_stroke_join_islands	(	bGPdata *	gpd,
		bGPDframe *	gpf,
		bGPDstroke *	gps_first,
		bGPDstroke *	gps_last )

static

Classes

Functions

Function Documentation

◆ BKE_gpencil_centroid_3d()

◆ BKE_gpencil_data_minmax()

◆ BKE_gpencil_point_coords_apply()

◆ BKE_gpencil_point_coords_apply_with_mat4()

◆ BKE_gpencil_point_coords_get()

◆ BKE_gpencil_stroke_2d_flat()

◆ BKE_gpencil_stroke_2d_flat_ref()

◆ BKE_gpencil_stroke_average_pressure_get()

◆ BKE_gpencil_stroke_boundingbox_calc()

◆ BKE_gpencil_stroke_close()

◆ BKE_gpencil_stroke_delete_tagged_points()

◆ BKE_gpencil_stroke_fill_triangulate()

◆ BKE_gpencil_stroke_flip()

◆ BKE_gpencil_stroke_from_view_space()

◆ BKE_gpencil_stroke_geometry_update()

◆ BKE_gpencil_stroke_is_pressure_constant()

◆ BKE_gpencil_stroke_join()

◆ BKE_gpencil_stroke_length()

◆ BKE_gpencil_stroke_minmax()

◆ BKE_gpencil_stroke_normal()

◆ BKE_gpencil_stroke_point_count()

◆ BKE_gpencil_stroke_segment_length()

◆ BKE_gpencil_stroke_set_random_color()

◆ BKE_gpencil_stroke_smooth()

◆ BKE_gpencil_stroke_smooth_point()

◆ BKE_gpencil_stroke_smooth_strength()

◆ BKE_gpencil_stroke_smooth_thickness()

◆ BKE_gpencil_stroke_smooth_uv()

◆ BKE_gpencil_stroke_to_view_space()

◆ BKE_gpencil_stroke_trim()

◆ BKE_gpencil_stroke_uv_update()

◆ BKE_gpencil_transform()

◆ gpencil_calc_stroke_fill_uv()

◆ gpencil_stroke_copy_point()

◆ gpencil_stroke_join_islands()