gpencil_geom.c File Reference

#include <math.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "CLG_log.h"
#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BLI_ghash.h"
#include "BLI_hash.h"
#include "BLI_heap.h"
#include "BLI_math_vector.h"
#include "BLI_polyfill_2d.h"
#include "BLT_translation.h"
#include "DNA_gpencil_modifier_types.h"
#include "DNA_gpencil_types.h"
#include "DNA_material_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_scene_types.h"
#include "DNA_screen_types.h"
#include "BKE_context.h"
#include "BKE_deform.h"
#include "BKE_gpencil.h"
#include "BKE_gpencil_curve.h"
#include "BKE_gpencil_geom.h"
#include "BKE_main.h"
#include "BKE_material.h"
#include "BKE_object.h"
#include "DEG_depsgraph_query.h"

Go to the source code of this file.

Classes
struct	GpEdge
struct	tGPDeleteIsland
struct	tSamplePoint
struct	tSampleEdge
struct	tPerimeterPoint

Typedefs
typedef struct GpEdge	GpEdge
typedef struct tGPDeleteIsland	tGPDeleteIsland
typedef struct tSamplePoint	tSamplePoint
typedef struct tSampleEdge	tSampleEdge
typedef struct tPerimeterPoint	tPerimeterPoint

Functions
bool	BKE_gpencil_stroke_minmax (const bGPDstroke *gps, const bool use_select, float r_min[3], float r_max[3])
bool	BKE_gpencil_data_minmax (const bGPdata *gpd, float r_min[3], float r_max[3])
void	BKE_gpencil_centroid_3d (bGPdata *gpd, float r_centroid[3])
void	BKE_gpencil_stroke_boundingbox_calc (bGPDstroke *gps)
static void	boundbox_gpencil (Object *ob)
BoundBox *	BKE_gpencil_boundbox_get (Object *ob)
static int	stroke_march_next_point (const bGPDstroke *gps, const int index_next_pt, const float *current, const float dist, float *result, float *pressure, float *strength, float *vert_color, float *ratio_result, int *index_from, int *index_to)
static int	stroke_march_next_point_no_interp (const bGPDstroke *gps, const int index_next_pt, const float *current, const float dist, float *result)
static int	stroke_march_count (const bGPDstroke *gps, const float dist)
static void	stroke_defvert_create_nr_list (MDeformVert *dv_list, int count, ListBase *result, int *totweight)
static MDeformVert *	stroke_defvert_new_count (int count, int totweight, ListBase *def_nr_list)
static void	stroke_interpolate_deform_weights (bGPDstroke *gps, int index_from, int index_to, float ratio, MDeformVert *vert)
bool	BKE_gpencil_stroke_sample (bGPdata *gpd, bGPDstroke *gps, const float dist, const bool select)
bool	BKE_gpencil_stroke_stretch (bGPDstroke *gps, const float dist, const float tip_length)
bool	BKE_gpencil_stroke_trim_points (bGPDstroke *gps, const int index_from, const int index_to)
bool	BKE_gpencil_stroke_split (bGPdata *gpd, bGPDframe *gpf, bGPDstroke *gps, const int before_index, bGPDstroke **remaining_gps)
bool	BKE_gpencil_stroke_shrink (bGPDstroke *gps, const float dist)
bool	BKE_gpencil_stroke_smooth (bGPDstroke *gps, int i, float inf)
bool	BKE_gpencil_stroke_smooth_strength (bGPDstroke *gps, int point_index, float influence)
bool	BKE_gpencil_stroke_smooth_thickness (bGPDstroke *gps, int point_index, float influence)
bool	BKE_gpencil_stroke_smooth_uv (bGPDstroke *gps, int point_index, float influence)
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])
void	BKE_gpencil_stroke_fill_triangulate (bGPDstroke *gps)
void	BKE_gpencil_stroke_uv_update (bGPDstroke *gps)
void	BKE_gpencil_stroke_geometry_update (bGPdata *gpd, bGPDstroke *gps)
float	BKE_gpencil_stroke_length (const bGPDstroke *gps, bool use_3d)
float	BKE_gpencil_stroke_segment_length (const struct 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)
void	BKE_gpencil_dissolve_points (bGPdata *gpd, bGPDframe *gpf, bGPDstroke *gps, const short tag)
void	BKE_gpencil_stroke_normal (const bGPDstroke *gps, float r_normal[3])
void	BKE_gpencil_stroke_simplify_adaptive (bGPdata *gpd, bGPDstroke *gps, float epsilon)
void	BKE_gpencil_stroke_simplify_fixed (bGPdata *gpd, bGPDstroke *gps)
void	BKE_gpencil_stroke_subdivide (bGPdata *gpd, bGPDstroke *gps, int level, int type)
void	BKE_gpencil_stroke_merge_distance (bGPdata *gpd, bGPDframe *gpf, bGPDstroke *gps, const float threshold, const bool use_unselected)
static int	gpencil_next_edge (GpEdge *gp_edges, int totedges, GpEdge *gped_init, const float threshold, const bool reverse)
static int	gpencil_walk_edge (GHash *v_table, GpEdge *gp_edges, int totedges, uint *stroke_array, int init_idx, const float angle, const bool reverse)
static void	gpencil_generate_edgeloops (Object *ob, bGPdata *gpd, bGPDframe *gpf_stroke, int stroke_mat_index, const float angle, const int thickness, const float offset, const float matrix[4][4], const bool use_seams)
static Material *	gpencil_add_material (Main *bmain, Object *ob_gp, const char *name, const float color[4], const bool use_stroke, const bool use_fill, int *r_idx)
static int	gpencil_material_find_index_by_name (Object *ob, const char *name)
static void	make_element_name (const char *obname, const char *name, const int maxlen, char *r_name)
bool	BKE_gpencil_convert_mesh (Main *bmain, Depsgraph *depsgraph, Scene *scene, Object *ob_gp, Object *ob_mesh, const float angle, const int thickness, const float offset, const float matrix[4][4], const int frame_offset, const bool use_seams, const bool use_faces)
void	BKE_gpencil_transform (bGPdata *gpd, const float mat[4][4])
int	BKE_gpencil_stroke_point_count (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)
void	BKE_gpencil_curve_delete_tagged_points (bGPdata *gpd, bGPDframe *gpf, bGPDstroke *gps, bGPDstroke *next_stroke, bGPDcurve *gpc, int tag_flags)
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)
void	BKE_gpencil_stroke_copy_to_keyframes (bGPdata *gpd, bGPDlayer *gpl, bGPDframe *gpf, bGPDstroke *gps, const bool tail)
static tSamplePoint *	new_sample_point_from_gp_point (const bGPDspoint *pt, const MDeformVert *dvert)
static tSampleEdge *	new_sample_edge_from_sample_points (tSamplePoint *from, tSamplePoint *to)
void	BKE_gpencil_stroke_uniform_subdivide (bGPdata *gpd, bGPDstroke *gps, const uint32_t target_number, const bool select)
void	BKE_gpencil_stroke_to_view_space (RegionView3D *rv3d, bGPDstroke *gps, const float diff_mat[4][4])
void	BKE_gpencil_stroke_from_view_space (RegionView3D *rv3d, bGPDstroke *gps, const float diff_mat[4][4])
static tPerimeterPoint *	new_perimeter_point (const float pt[3])
static int	generate_arc_from_point_to_point (ListBase *list, tPerimeterPoint *from, tPerimeterPoint *to, float center_pt[3], int subdivisions, bool clockwise)
static int	generate_semi_circle_from_point_to_point (ListBase *list, tPerimeterPoint *from, tPerimeterPoint *to, int subdivisions)
static int	generate_perimeter_cap (const float point[4], const float other_point[4], float radius, ListBase *list, int subdivisions, short cap_type)
static ListBase *	gpencil_stroke_perimeter_ex (const bGPdata *gpd, const bGPDlayer *gpl, const bGPDstroke *gps, int subdivisions, int *r_num_perimeter_points)
bGPDstroke *	BKE_gpencil_stroke_perimeter_from_view (struct RegionView3D *rv3d, bGPdata *gpd, const bGPDlayer *gpl, bGPDstroke *gps, const int subdivisions, const float diff_mat[4][4])
float	BKE_gpencil_stroke_average_pressure_get (bGPDstroke *gps)
bool	BKE_gpencil_stroke_is_pressure_constant (bGPDstroke *gps)

Typedef Documentation

GpEdge

typedef struct GpEdge GpEdge

tGPDeleteIsland

typedef struct tGPDeleteIsland tGPDeleteIsland

tPerimeterPoint

typedef struct tPerimeterPoint tPerimeterPoint

tSampleEdge

typedef struct tSampleEdge tSampleEdge

tSamplePoint

typedef struct tSamplePoint tSamplePoint

Function Documentation

BKE_gpencil_boundbox_get()

BoundBox* BKE_gpencil_boundbox_get

(

Object *

ob

)

Get grease pencil object bounding box.

Parameters

ob	Grease pencil object

Returns

Bounding box

Definition at line 182 of file gpencil_geom.c.

References Object_Runtime::bb, boundbox_gpencil(), copy_v3_v3(), Object::data, DEG_get_original_id(), ELEM, bGPdata::flag, GP_DATA_CACHE_IS_DIRTY, Object::id, if(), MEM_callocN, NULL, Object::runtime, and BoundBox::vec.

Referenced by BKE_object_boundbox_get(), and BKE_object_minmax().

BKE_gpencil_centroid_3d()

void BKE_gpencil_centroid_3d	(	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 130 of file gpencil_geom.c.

References add_v3_v3v3(), BKE_gpencil_data_minmax(), max, min, and mul_v3_v3fl().

Referenced by object_origin_set_exec(), and blender::io::gpencil::GpencilImporterSVG::read().

BKE_gpencil_convert_mesh()

bool BKE_gpencil_convert_mesh	(	Main *	bmain,
		Depsgraph *	depsgraph,
		Scene *	scene,
		Object *	ob_gp,
		Object *	ob_mesh,
		const float	angle,
		const int	thickness,
		const float	offset,
		const float	matrix[4][4],
		const int	frame_offset,
		const bool	use_seams,
		const bool	use_faces
	)

Convert a mesh object to grease pencil stroke.

Parameters

bmain	Main thread pointer.
depsgraph	Original depsgraph.
scene	Original scene.
ob_gp	Grease pencil object to add strokes.
ob_mesh	Mesh to convert.
angle	Limit angle to consider a edgeloop ends.
thickness	Thickness of the strokes.
offset	Offset along the normals.
matrix	Transformation matrix.
frame_offset	Destination frame number offset.
use_seams	Only export seam edges.
use_faces	Export faces as filled strokes.

Definition at line 2391 of file gpencil_geom.c.

References angle(), BKE_gpencil_layer_addnew(), BKE_gpencil_layer_frame_get(), BKE_gpencil_layer_named_get(), BKE_gpencil_material_find_index_by_name_prefix(), BKE_gpencil_stroke_add(), BKE_gpencil_stroke_geometry_update(), BKE_gpencil_stroke_subdivide(), BKE_object_get_evaluated_mesh(), BKE_object_material_get(), CFRA, copy_v3_v3(), copy_v4_v4(), Object::data, DEG_get_evaluated_object(), DEG_id_tag_update(), depsgraph, ELEM, bGPDstroke::flag, GP_GETFRAME_ADD_NEW, GP_STROKE_CYCLIC, GP_SUBDIV_SIMPLE, gpencil_add_material(), gpencil_generate_edgeloops(), gpencil_material_find_index_by_name(), bGPdata::id, Material::id, Object::id, ID_RECALC_COPY_ON_WRITE, ID_RECALC_GEOMETRY, MPoly::loopstart, make_element_name(), MPoly::mat_nr, Mesh::mloop, Mesh::mpoly, mul_m4_v3(), Mesh::mvert, ID::name, NULL, OB_GPENCIL, bGPDstroke::points, bGPDspoint::pressure, Material::r, bGPDspoint::strength, MPoly::totloop, Mesh::totpoly, Mesh::totvert, Object::type, MLoop::v, and bGPDspoint::x.

Referenced by object_convert_exec().

BKE_gpencil_curve_delete_tagged_points()

void BKE_gpencil_curve_delete_tagged_points	(	bGPdata *	gpd,
		bGPDframe *	gpf,
		bGPDstroke *	gps,
		bGPDstroke *	next_stroke,
		bGPDcurve *	gpc,
		int	tag_flags
	)

Definition at line 3007 of file gpencil_geom.c.

References BKE_gpencil_editcurve_recalculate_handles(), BKE_gpencil_free_stroke(), BKE_gpencil_stroke_duplicate(), BKE_gpencil_stroke_editcurve_new(), BKE_gpencil_stroke_geometry_update(), BLI_addtail(), BLI_insertlinkbefore(), BLI_remlink(), bGPDcurve::curve_points, bGPDstroke::editcurve, bGPDcurve_point::flag, bGPDstroke::flag, GP_STROKE_CYCLIC, GP_STROKE_NEEDS_CURVE_UPDATE, MEM_recallocN, NULL, bGPDstroke::points, bGPDframe::strokes, and bGPDcurve::tot_curve_points.

Referenced by gpencil_delete_selected_points().

BKE_gpencil_data_minmax()

bool BKE_gpencil_data_minmax	(	const bGPdata *	gpd,
		float	r_min[3],
		float	r_max[3]
	)

Get min/max bounds of all strokes in grease pencil data-block.

Parameters

gpd	Grease pencil datablock
r_min	Result minimum coordinates
r_max	Result maximum coordinates

Returns

True if it was possible to calculate

Definition at line 102 of file gpencil_geom.c.

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

Referenced by BKE_gpencil_centroid_3d(), and boundbox_gpencil().

BKE_gpencil_dissolve_points()

void BKE_gpencil_dissolve_points	(	bGPdata *	gpd,
		bGPDframe *	gpf,
		bGPDstroke *	gps,
		const short	tag
	)

Dissolve points in stroke.

Parameters

gpd	Grease pencil data-block
gpf	Grease pencil frame
gps	Grease pencil stroke
tag	Type of tag for point

Definition at line 1590 of file gpencil_geom.c.

References BKE_gpencil_free_stroke_weights(), BKE_gpencil_stroke_geometry_update(), BLI_freelinkN(), bGPDstroke::dvert, MDeformVert::dw, bGPDspoint::flag, MEM_callocN, MEM_dupallocN, MEM_freeN, NULL, bGPDstroke::points, bGPDframe::strokes, bGPDstroke::totpoints, and bGPDstroke::triangles.

Referenced by BKE_gpencil_stroke_merge_distance().

BKE_gpencil_point_coords_apply()

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

Definition at line 2606 of file gpencil_geom.c.

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

Referenced by ED_object_data_xform_restore().

BKE_gpencil_point_coords_apply_with_mat4()

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

Definition at line 2640 of file gpencil_geom.c.

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

Referenced by ED_object_data_xform_by_mat4().

BKE_gpencil_point_coords_get()

void BKE_gpencil_point_coords_get	(	bGPdata *	gpd,
		GPencilPointCoordinates *	elem_data
	)

Definition at line 2575 of file gpencil_geom.c.

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

Referenced by 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
	)

Get points of stroke always flat to view not affected by camera view or view position.

Parameters

points	Array of grease pencil points (3D)
totpoints	Total of points
points2d	Result array of 2D points
r_direction	Return Concave (-1), Convex (1), or Auto-detect (0)

Definition at line 1013 of file gpencil_geom.c.

References BLI_assert, copy_v3_v3(), cross(), cross_v3_v3v3(), dot_v3v3(), mul_v3_v3fl(), normal, 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
	)

Get points of stroke always flat to view not affected by camera view or view position using another stroke as reference.

Parameters

ref_points	Array of reference points (3D)
ref_totpoints	Total reference points
points	Array of points to flat (3D)
totpoints	Total points
points2d	Result array of 2D points
scale	Scale factor
r_direction	Return Concave (-1), Convex (1), or Auto-detect (0)

Definition at line 1098 of file gpencil_geom.c.

References add_v3_v3v3(), BLI_assert, copy_v3_v3(), cross_v3_v3v3(), dot_v3v3(), mul_v3_fl(), mul_v3_v3fl(), normal, normalize_v3(), sub_v3_v3v3(), v1, vn, and bGPDspoint::x.

BKE_gpencil_stroke_average_pressure_get()

float BKE_gpencil_stroke_average_pressure_get

(

bGPDstroke *

gps

)

Get average pressure.

Definition at line 4005 of file gpencil_geom.c.

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

BKE_gpencil_stroke_boundingbox_calc()

void BKE_gpencil_stroke_boundingbox_calc

(

bGPDstroke *

gps

)

Compute stroke bounding box.

Parameters

gps	Grease pencil Stroke

Definition at line 144 of file gpencil_geom.c.

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

Referenced by BKE_gpencil_stroke_geometry_update(), and ED_gpencil_stroke_check_collision().

BKE_gpencil_stroke_close()

bool BKE_gpencil_stroke_close

(

bGPDstroke *

gps

)

Close grease pencil stroke.

Parameters

gps	Stroke to close

Definition at line 1498 of file gpencil_geom.c.

References BKE_defvert_ensure_index(), bGPDstroke::dvert, MDeformVert::dw, bGPDspoint::flag, bGPDstroke::flag, float(), GP_STROKE_CYCLIC, interp_v3_v3v3(), interp_v4_v4v4(), interpf(), len_v3v3(), MAX2, MEM_recallocN, NULL, bGPDstroke::points, bGPDspoint::pressure, bGPDspoint::strength, bGPDstroke::totpoints, MDeformVert::totweight, bGPDspoint::vert_color, MDeformWeight::weight, and bGPDspoint::x.

Referenced by deformStroke(), ED_gpencil_stroke_close_by_distance(), gpencil_convert_spline(), and gpencil_stroke_cyclical_set_exec().

BKE_gpencil_stroke_copy_to_keyframes()

void BKE_gpencil_stroke_copy_to_keyframes	(	bGPdata *	gpd,
		bGPDlayer *	gpl,
		bGPDframe *	gpf,
		bGPDstroke *	gps,
		const bool	tail
	)

Definition at line 3256 of file gpencil_geom.c.

References BKE_gpencil_frame_addnew(), BKE_gpencil_frame_selected_hash(), BKE_gpencil_layer_frame_find(), BKE_gpencil_stroke_duplicate(), BLI_addhead(), BLI_addtail(), BLI_ghash_free(), BLI_ghash_int_new_ex(), BLI_ghashIterator_getKey(), bGPDframe::framenum, GHASH_ITER, NULL, POINTER_AS_INT, and bGPDframe::strokes.

Referenced by gpencil_primitive_interaction_end(), and gpencil_stroke_newfrombuffer().

BKE_gpencil_stroke_delete_tagged_points()

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
	)

Definition at line 2853 of file gpencil_geom.c.

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_SELECT, GP_SPOINT_TAG, GP_STROKE_CAP_FLAT, GP_STROKE_CYCLIC, gpencil_stroke_join_islands(), bGPDstroke::inittime, MEM_callocN, MEM_dupallocN, MEM_freeN, NULL, bGPDstroke::points, select(), tGPDeleteIsland::start_idx, bGPDframe::strokes, bGPDspoint::time, and bGPDstroke::totpoints.

Referenced by annotation_stroke_eraser_dostroke(), ED_gpencil_stroke_join_and_trim(), gpencil_cutter_dissolve(), gpencil_delete_selected_points(), gpencil_dissolve_points(), gpencil_stroke_eraser_dostroke(), gpencil_stroke_separate_exec(), gpencil_stroke_split_exec(), and image_to_gpencil_exec().

BKE_gpencil_stroke_fill_triangulate()

void BKE_gpencil_stroke_fill_triangulate

(

bGPDstroke *

gps

)

Triangulate stroke to generate data for filling areas.

Parameters

gps	Grease pencil stroke

Definition at line 1225 of file gpencil_geom.c.

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, NULL, 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

(

bGPDstroke *

gps

)

Definition at line 2696 of file gpencil_geom.c.

References copy_v4_v4(), bGPDspoint::flag, bGPDstroke::points, bGPDspoint::pressure, bGPDspoint::strength, bGPDspoint::time, bGPDstroke::totpoints, bGPDspoint::vert_color, bGPDspoint::x, bGPDspoint::y, and bGPDspoint::z.

Referenced by BKE_gpencil_stroke_join(), gpencil_add_move_points(), gpencil_interpolate_seq_exec(), gpencil_interpolate_set_points(), and gpencil_stroke_flip_exec().

BKE_gpencil_stroke_from_view_space()

void BKE_gpencil_stroke_from_view_space	(	RegionView3D *	rv3d,
		bGPDstroke *	gps,
		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 3512 of file gpencil_geom.c.

References invert_m4_m4(), mul_m4_v3(), mul_v3_m4v3(), bGPDstroke::points, bGPDstroke::totpoints, RegionView3D::viewinv, and bGPDspoint::x.

Referenced by BKE_gpencil_stroke_perimeter_from_view().

BKE_gpencil_stroke_geometry_update()

void BKE_gpencil_stroke_geometry_update	(	bGPdata *	gpd,
		bGPDstroke *	gps
	)

Recalc all internal geometry data for the stroke

Parameters

gpd	Grease pencil data-block
gps	Grease pencil stroke

Definition at line 1307 of file gpencil_geom.c.

References BKE_gpencil_stroke_boundingbox_calc(), BKE_gpencil_stroke_fill_triangulate(), BKE_gpencil_stroke_update_geometry_from_editcurve(), BKE_gpencil_stroke_uv_update(), bGPdata::curve_edit_resolution, bGPDstroke::editcurve, bGPDcurve::flag, bGPDstroke::flag, bGPdata::flag, GP_CURVE_NEEDS_STROKE_UPDATE, GP_DATA_CURVE_ADAPTIVE_RESOLUTION, GP_STROKE_NEEDS_CURVE_UPDATE, GPENCIL_CURVE_EDIT_SESSIONS_ON, MEM_SAFE_FREE, NULL, bGPDstroke::tot_triangles, bGPDstroke::totpoints, and bGPDstroke::triangles.

Referenced by BKE_gpencil_convert_mesh(), BKE_gpencil_curve_delete_tagged_points(), BKE_gpencil_dissolve_points(), BKE_gpencil_from_image(), BKE_gpencil_point_coords_apply(), BKE_gpencil_point_coords_apply_with_mat4(), BKE_gpencil_stroke_delete_tagged_points(), BKE_gpencil_stroke_merge_distance(), BKE_gpencil_stroke_perimeter_from_view(), BKE_gpencil_stroke_sample(), BKE_gpencil_stroke_simplify_adaptive(), BKE_gpencil_stroke_simplify_fixed(), BKE_gpencil_stroke_split(), BKE_gpencil_stroke_subdivide(), BKE_gpencil_stroke_trim(), BKE_gpencil_stroke_uniform_subdivide(), BKE_gpencil_strokes_selected_update_editcurve(), BKE_gpencil_transform(), blo_do_versions_280(), deformStroke(), duplicateStroke(), ED_gpencil_create_monkey(), ED_gpencil_create_stroke(), ED_gpencil_select_curve_toggle_all(), ED_gpencil_trace_data_to_strokes(), gpencil_add_move_points(), gpencil_convert_spline(), gpencil_curve_extrude_points(), gpencil_dissolve_selected_curve_points(), gpencil_dissolve_selected_stroke_points(), gpencil_duplicate_exec(), gpencil_duplicate_points(), gpencil_editcurve_set_handle_type_exec(), gpencil_editmode_toggle_exec(), gpencil_generate_edgeloops(), gpencil_generic_stroke_select(), gpencil_insert_point(), gpencil_interpolate_modal(), gpencil_interpolate_seq_exec(), gpencil_interpolate_set_points(), gpencil_interpolate_update_strokes(), gpencil_primitive_interaction_end(), gpencil_primitive_update_strokes(), gpencil_recalc_geometry_exec(), gpencil_reset_transform_fill_exec(), gpencil_sculpt_brush_do_frame(), gpencil_select_exec(), gpencil_snap_to_grid(), gpencil_stroke_cyclical_set_exec(), gpencil_stroke_do_circle_sel(), gpencil_stroke_enter_editcurve_mode_exec(), gpencil_stroke_from_buffer(), gpencil_stroke_join_exec(), gpencil_stroke_join_islands(), gpencil_stroke_merge_exec(), gpencil_stroke_newfrombuffer(), gpencil_stroke_subdivide_exec(), gpencil_strokes_copy_exec(), gpencil_strokes_paste_exec(), gpencil_strokes_reproject_exec(), gpencil_subdivide_stroke(), gpencil_update_geometry(), gpencil_uv_transform_calc(), lineart_gpencil_generate(), object_origin_set_exec(), recalcData_gpencil_strokes(), and reduce_stroke_points().

BKE_gpencil_stroke_is_pressure_constant()

bool BKE_gpencil_stroke_is_pressure_constant

(

bGPDstroke *

gps

)

Check if the thickness of the stroke is constant.

Definition at line 4022 of file gpencil_geom.c.

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

BKE_gpencil_stroke_join()

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

Definition at line 3162 of file gpencil_geom.c.

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

Referenced by ED_gpencil_stroke_join_and_trim(), and gpencil_stroke_join_exec().

BKE_gpencil_stroke_length()

float BKE_gpencil_stroke_length	(	const bGPDstroke *	gps,
		bool	use_3d
	)

Calculate grease pencil stroke length.

Parameters

gps	Grease pencil stroke
use_3d	Set to true to use 3D points

Returns

Length of the stroke

Definition at line 1350 of file gpencil_geom.c.

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

BKE_gpencil_stroke_merge_distance()

void BKE_gpencil_stroke_merge_distance	(	bGPdata *	gpd,
		bGPDframe *	gpf,
		bGPDstroke *	gps,
		const float	threshold,
		const bool	use_unselected
	)

Reduce a series of points when the distance is below a threshold. Special case for first and last points (both are keeped) for other points, the merge point always is at first point.

Parameters

gpd	Grease pencil data-block
gpf	Grease Pencil frame
gps	Grease Pencil stroke
threshold	Distance between points
use_unselected	Set to true to analyze all stroke and not only selected points

Definition at line 2017 of file gpencil_geom.c.

References BKE_gpencil_dissolve_points(), BKE_gpencil_stroke_geometry_update(), bGPDspoint::flag, GP_SPOINT_SELECT, GP_SPOINT_TAG, len_squared_v3v3(), NULL, bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by deformStroke(), ED_gpencil_stroke_join_and_trim(), and gpencil_merge_by_distance_exec().

BKE_gpencil_stroke_minmax()

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

Get min/max coordinate bounds for single stroke.

Parameters

gps	Grease pencil stroke
use_select	Include only selected points
r_min	Result minimum coordinates
r_max	Result maximum coordinates

Returns

True if it was possible to calculate

Definition at line 73 of file gpencil_geom.c.

References ELEM, bGPDspoint::flag, GP_SPOINT_SELECT, minmax_v3v3_v3(), NULL, bGPDstroke::points, and bGPDspoint::x.

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]
	)

Calculate stroke normals.

Parameters

gps	Grease pencil stroke
r_normal	Return Normal vector normalized

Definition at line 1675 of file gpencil_geom.c.

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

BKE_gpencil_stroke_perimeter_from_view()

bGPDstroke* BKE_gpencil_stroke_perimeter_from_view	(	struct RegionView3D *	rv3d,
		bGPdata *	gpd,
		const bGPDlayer *	gpl,
		bGPDstroke *	gps,
		const int	subdivisions,
		const float	diff_mat[4][4]
	)

Calculates the perimeter of a stroke projected from the view and returns it as a new stroke.

Parameters

subdivisions

Number of subdivisions for the start and end caps

Returns

: bGPDstroke pointer to stroke perimeter

Definition at line 3938 of file gpencil_geom.c.

References BKE_gpencil_free_stroke(), BKE_gpencil_stroke_duplicate(), BKE_gpencil_stroke_from_view_space(), BKE_gpencil_stroke_geometry_update(), BKE_gpencil_stroke_new(), BKE_gpencil_stroke_to_view_space(), BLI_freelistN(), copy_v3_v3(), bGPDspoint::flag, bGPDstroke::flag, GP_SPOINT_SELECT, GP_STROKE_CYCLIC, GP_STROKE_SELECT, gpencil_stroke_perimeter_ex(), LISTBASE_FOREACH_INDEX, bGPDstroke::mat_nr, MEM_freeN, MEM_recallocN, NULL, bGPDstroke::points, bGPDspoint::pressure, bGPDspoint::strength, bGPDstroke::totpoints, bGPDspoint::uv_fac, bGPDspoint::uv_rot, and bGPDspoint::x.

BKE_gpencil_stroke_point_count()

int BKE_gpencil_stroke_point_count

(

bGPdata *

gpd

)

Definition at line 2548 of file gpencil_geom.c.

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

Referenced by ED_object_data_xform_create_ex().

BKE_gpencil_stroke_sample()

bool BKE_gpencil_stroke_sample	(	bGPdata *	gpd,
		bGPDstroke *	gps,
		const float	dist,
		const bool	select
	)

Resample a stroke

Parameters

gpd	Grease pencil data-block
gps	Stroke to sample
dist	Distance of one segment

Definition at line 429 of file gpencil_geom.c.

References BKE_gpencil_free_stroke_weights(), BKE_gpencil_stroke_geometry_update(), BLI_pophead(), copy_v3_v3(), count, bGPDstroke::dvert, bGPDspoint::flag, GP_SPOINT_SELECT, MEM_callocN, MEM_freeN, NULL, bGPDstroke::points, bGPDspoint::pressure, select(), bGPDspoint::strength, stroke_defvert_create_nr_list(), stroke_defvert_new_count(), stroke_interpolate_deform_weights(), stroke_march_count(), stroke_march_next_point(), bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by deformStroke(), ED_gpencil_trace_data_to_strokes(), gpencil_convert_spline(), and gpencil_stroke_sample_exec().

BKE_gpencil_stroke_segment_length()

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

Calculate grease pencil stroke length between points.

Definition at line 1371 of file gpencil_geom.c.

References len_v2v2(), len_v3v3(), MAX2, MIN2, bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by ED_gpencil_stroke_join_and_trim().

BKE_gpencil_stroke_set_random_color()

void BKE_gpencil_stroke_set_random_color

(

bGPDstroke *

gps

)

Set a random color to stroke using vertex color.

Parameters

gps

Stroke

Definition at line 2680 of file gpencil_geom.c.

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.

Referenced by lineart_gpencil_generate().

BKE_gpencil_stroke_shrink()

bool BKE_gpencil_stroke_shrink	(	bGPDstroke *	gps,
		const float	dist
	)

Shrink the stroke by length.

Parameters

gps	Stroke to shrink
dist	delta length

Definition at line 706 of file gpencil_geom.c.

References BKE_gpencil_stroke_trim_points(), copy_v3_v3(), interp_v3_v3v3(), len_v3v3(), bGPDstroke::points, bGPDstroke::totpoints, x, and bGPDspoint::x.

BKE_gpencil_stroke_simplify_adaptive()

void BKE_gpencil_stroke_simplify_adaptive	(	bGPdata *	gpd,
		bGPDstroke *	gps,
		float	epsilon
	)

Reduce a series of points to a simplified version, but maintains the general shape of the series

Ramer - Douglas - Peucker algorithm by http://en.wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm

Parameters

gpd	Grease pencil data-block
gps	Grease pencil stroke
epsilon	Epsilon value to define precision of the algorithm

Definition at line 1717 of file gpencil_geom.c.

References BKE_gpencil_free_point_weights(), BKE_gpencil_stroke_geometry_update(), closest_to_line_segment_v3(), bGPDstroke::dvert, MDeformVert::dw, blender::robust_pred::epsilon, len_v3v3(), max_i(), MEM_callocN, MEM_dupallocN, MEM_SAFE_FREE, NULL, bGPDstroke::points, bGPDstroke::totpoints, and x.

Referenced by deformStroke(), gpencil_stroke_newfrombuffer(), and gpencil_stroke_simplify_exec().

BKE_gpencil_stroke_simplify_fixed()

void BKE_gpencil_stroke_simplify_fixed	(	bGPdata *	gpd,
		bGPDstroke *	gps
	)

Simplify alternate vertex of stroke except extremes.

Parameters

gpd	Grease pencil data-block
gps	Grease pencil stroke

Definition at line 1826 of file gpencil_geom.c.

References BKE_gpencil_free_point_weights(), BKE_gpencil_stroke_geometry_update(), bGPDstroke::dvert, MDeformVert::dw, MEM_dupallocN, MEM_recallocN, MEM_SAFE_FREE, NULL, bGPDstroke::points, and bGPDstroke::totpoints.

Referenced by deformStroke(), gpencil_stroke_from_buffer(), and gpencil_stroke_simplify_fixed_exec().

BKE_gpencil_stroke_smooth()

bool BKE_gpencil_stroke_smooth	(	bGPDstroke *	gps,
		int	i,
		float	inf
	)

Apply smooth position to stroke point.

Parameters

gps	Stroke to smooth
i	Point index
inf	Amount of smoothing to apply

Definition at line 778 of file gpencil_geom.c.

References CLAMP_MAX, CLAMP_MIN, ELEM, float(), interp_v3_v3v3(), madd_v3_v3fl(), bGPDstroke::points, steps, bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by deformStroke(), gpencil_brush_smooth_apply(), gpencil_interpolate_smooth_stroke(), gpencil_smooth_stroke(), gpencil_stroke_from_buffer(), and gpencil_stroke_newfrombuffer().

BKE_gpencil_stroke_smooth_strength()

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

Apply smooth strength to stroke point.

Parameters

gps	Stroke to smooth
point_index	Point index
influence	Amount of smoothing to apply

Definition at line 841 of file gpencil_geom.c.

References CLAMP_MAX, CLAMP_MIN, ELEM, float(), interpf(), bGPDstroke::points, steps, bGPDspoint::strength, and bGPDstroke::totpoints.

Referenced by deformStroke(), gpencil_brush_smooth_apply(), gpencil_interpolate_smooth_stroke(), gpencil_smooth_stroke(), and gpencil_stroke_newfrombuffer().

BKE_gpencil_stroke_smooth_thickness()

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

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

Parameters

gps	Stroke to smooth
point_index	Point index
influence	Amount of smoothing to apply

Definition at line 905 of file gpencil_geom.c.

References CLAMP_MAX, CLAMP_MIN, ELEM, float(), interpf(), bGPDstroke::points, bGPDspoint::pressure, steps, and bGPDstroke::totpoints.

Referenced by deformStroke(), gpencil_brush_smooth_apply(), and gpencil_smooth_stroke().

BKE_gpencil_stroke_smooth_uv()

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

Apply smooth for UV rotation to stroke point (use pressure).

Parameters

gps	Stroke to smooth
point_index	Point index
influence	Amount of smoothing to apply

Definition at line 968 of file gpencil_geom.c.

References CLAMP, CLAMP_MAX, CLAMP_MIN, interpf(), line_point_factor_v3(), M_PI_2, bGPDstroke::points, bGPDstroke::totpoints, bGPDspoint::uv_rot, and bGPDspoint::x.

Referenced by deformStroke(), gpencil_brush_smooth_apply(), and gpencil_smooth_stroke().

BKE_gpencil_stroke_split()

bool BKE_gpencil_stroke_split	(	bGPdata *	gpd,
		bGPDframe *	gpf,
		bGPDstroke *	gps,
		const int	before_index,
		bGPDstroke **	remaining_gps
	)

Split stroke.

Parameters

gpd	Grease pencil data-block
gpf	Grease pencil frame
gps	Grease pencil original stroke
before_index	Position of the point to split
remaining_gps	Secondary stroke after split.

Returns

True if the split was done

Definition at line 646 of file gpencil_geom.c.

References BKE_gpencil_stroke_add_existing_style(), BKE_gpencil_stroke_geometry_update(), BKE_gpencil_stroke_trim_points(), MDeformWeight::def_nr, bGPDstroke::dvert, MDeformVert::dw, MDeformVert::flag, bGPDstroke::mat_nr, MEM_callocN, bGPDstroke::points, bGPDstroke::thickness, bGPDstroke::totpoints, MDeformVert::totweight, and MDeformWeight::weight.

BKE_gpencil_stroke_stretch()

bool BKE_gpencil_stroke_stretch	(	bGPDstroke *	gps,
		const float	dist,
		const float	tip_length
	)

Backbone stretch similar to Freestyle.

Parameters

gps	Stroke to sample
dist	Distance of one segment
tip_length	Ignore tip jittering, set zero to use default value.

Definition at line 537 of file gpencil_geom.c.

References copy_v3_v3(), interp_v3_v3v3(), len_v3v3(), bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::x.

BKE_gpencil_stroke_subdivide()

void BKE_gpencil_stroke_subdivide	(	bGPdata *	gpd,
		bGPDstroke *	gps,
		int	level,
		int	type
	)

Subdivide a stroke

Parameters

gpd	Grease pencil data-block
gps	Stroke
level	Level of subdivision
type	Type of subdivision

Definition at line 1893 of file gpencil_geom.c.

References BKE_gpencil_stroke_geometry_update(), CLAMP, copy_v3_v3(), copy_v4_v4(), bGPDstroke::dvert, MDeformVert::dw, bGPDspoint::flag, GP_SUBDIV_SIMPLE, GPENCIL_STRENGTH_MIN, bGPDspoint_Runtime::idx_orig, interp_v3_v3v3(), interp_v4_v4v4(), interpf(), MEM_dupallocN, MEM_recallocN, MEM_SAFE_FREE, next, NULL, bGPDstroke::points, bGPDspoint::pressure, bGPDspoint_Runtime::pt_orig, bGPDspoint::runtime, bGPDspoint::strength, bGPDspoint::time, bGPDstroke::totpoints, MDeformVert::totweight, type, bGPDspoint::vert_color, MDeformWeight::weight, and bGPDspoint::x.

Referenced by BKE_gpencil_convert_mesh(), and deformStroke().

BKE_gpencil_stroke_to_view_space()

void BKE_gpencil_stroke_to_view_space	(	RegionView3D *	rv3d,
		bGPDstroke *	gps,
		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 3493 of file gpencil_geom.c.

References mul_m4_v3(), mul_v3_m4v3(), bGPDstroke::points, bGPDstroke::totpoints, RegionView3D::viewmat, and bGPDspoint::x.

Referenced by BKE_gpencil_stroke_perimeter_from_view().

BKE_gpencil_stroke_trim()

bool BKE_gpencil_stroke_trim	(	bGPdata *	gpd,
		bGPDstroke *	gps
	)

Trim stroke to the first intersection or loop.

Parameters

gps	Stroke data

Definition at line 1402 of file gpencil_geom.c.

References Freestyle::a, BKE_gpencil_stroke_geometry_update(), Freestyle::c, closest(), 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, NULL, bGPDstroke::points, bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by gpencil_stroke_newfrombuffer(), and gpencil_stroke_trim_exec().

BKE_gpencil_stroke_trim_points()

bool BKE_gpencil_stroke_trim_points	(	bGPDstroke *	gps,
		const int	index_from,
		const int	index_to
	)

Trim stroke to needed segments

Parameters

gps	Target stroke
index_from	the index of the first point to be used in the trimmed result
index_to	the index of the last point to be used in the trimmed result

Definition at line 587 of file gpencil_geom.c.

References BKE_gpencil_free_stroke_weights(), MDeformWeight::def_nr, bGPDstroke::dvert, MDeformVert::dw, MDeformVert::flag, MEM_callocN, MEM_freeN, NULL, bGPDstroke::points, bGPDstroke::totpoints, MDeformVert::totweight, and MDeformWeight::weight.

Referenced by BKE_gpencil_stroke_shrink(), and BKE_gpencil_stroke_split().

BKE_gpencil_stroke_uniform_subdivide()

void BKE_gpencil_stroke_uniform_subdivide	(	bGPdata *	gpd,
		bGPDstroke *	gps,
		const uint32_t	target_number,
		const bool	select
	)

Subdivide the grease pencil stroke so the number of points is target_number. Does not change the shape of the stroke. The new points will be distributed as uniformly as possible by repeatedly subdividing the current longest edge.

Parameters

gps	The stroke to be up-sampled.
target_number	The number of points the up-sampled stroke should have.
select	Select/Deselect the stroke.

Definition at line 3353 of file gpencil_geom.c.

References BKE_gpencil_stroke_geometry_update(), BKE_gpencil_stroke_select_index_set(), BLI_addtail(), BLI_assert, BLI_heap_free(), BLI_heap_insert(), BLI_heap_new(), BLI_heap_pop_min(), BLI_insertlinkafter(), copy_v3_v3(), copy_v4_v4(), MDeformWeight::def_nr, bGPDstroke::dvert, tSamplePoint::dw, MDeformVert::dw, ListBase::first, bGPDspoint::flag, bGPDstroke::flag, tSampleEdge::from, GP_SPOINT_SELECT, GP_STROKE_CYCLIC, GP_STROKE_SELECT, interp_v3_v3v3(), interp_v4_v4v4(), interpf(), ListBase::last, tSampleEdge::length_sq, LISTBASE_FOREACH_MUTABLE, MEM_callocN, MEM_freeN, MEM_recallocN, MEM_SAFE_FREE, MIN2, new_sample_edge_from_sample_points(), new_sample_point_from_gp_point(), tSamplePoint::next, NULL, bGPDstroke::points, tSamplePoint::pressure, bGPDspoint::pressure, select(), tSamplePoint::strength, bGPDspoint::strength, tSamplePoint::time, bGPDspoint::time, tSampleEdge::to, bGPDstroke::totpoints, tSamplePoint::totweight, MDeformVert::totweight, bGPDspoint::vert_color, tSamplePoint::vertex_color, MDeformWeight::weight, tSamplePoint::x, and bGPDspoint::x.

Referenced by gpencil_interpolate_seq_exec(), and gpencil_interpolate_set_points().

BKE_gpencil_stroke_uv_update()

void BKE_gpencil_stroke_uv_update

(

bGPDstroke *

gps

)

Update Stroke UV data.

Parameters

gps	Grease pencil stroke

Definition at line 1287 of file gpencil_geom.c.

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

Referenced by BKE_gpencil_stroke_geometry_update(), ED_gpencil_update_color_uv(), and gpencil_sbuffer_stroke_ensure().

BKE_gpencil_transform()

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

Apply grease pencil Transforms.

Parameters

gpd	Grease pencil data-block
mat	Transformation matrix

Definition at line 2514 of file gpencil_geom.c.

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

Referenced by apply_objects_internal().

boundbox_gpencil()

static void boundbox_gpencil ( Object *  ob )

static

Create bounding box values.

Parameters

ob	Grease pencil object

Definition at line 154 of file gpencil_geom.c.

References Object_Runtime::bb, BKE_boundbox_init_from_minmax(), BKE_gpencil_data_minmax(), BOUNDBOX_DIRTY, Object::data, BoundBox::flag, max, MEM_callocN, min, NULL, and Object::runtime.

Referenced by BKE_gpencil_boundbox_get().

generate_arc_from_point_to_point()

static int generate_arc_from_point_to_point ( ListBase *  list, tPerimeterPoint *  from, tPerimeterPoint *  to, float  center_pt[3], int  subdivisions, bool  clockwise  )

static

Definition at line 3541 of file gpencil_geom.c.

References add_v2_v2(), angle(), atan2f, BLI_insertlinkafter(), BLI_insertlinkbefore(), copy_v2_v2(), cross_v2v2(), dot_v2v2(), float(), from, is_zero_v2(), M_PI, new_perimeter_point(), rotate_v2_v2fl(), sub_v2_v2v2(), and tPerimeterPoint::x.

Referenced by gpencil_stroke_perimeter_ex().

generate_perimeter_cap()

static int generate_perimeter_cap ( const float  point[4], const float  other_point[4], float  radius, ListBase *  list, int  subdivisions, short  cap_type  )

static

Definition at line 3640 of file gpencil_geom.c.

References add_v2_v2(), BLI_addtail(), copy_v3_v3(), generate_semi_circle_from_point_to_point(), GP_STROKE_CAP_ROUND, is_zero_v2(), mul_v2_fl(), negate_v2_v2(), new_perimeter_point(), normalize_v2(), and sub_v2_v2v2().

Referenced by gpencil_stroke_perimeter_ex().

generate_semi_circle_from_point_to_point()

static int generate_semi_circle_from_point_to_point ( ListBase *  list, tPerimeterPoint *  from, tPerimeterPoint *  to, int  subdivisions  )

static

Definition at line 3604 of file gpencil_geom.c.

References add_v2_v2(), angle(), BLI_insertlinkafter(), float(), from, interp_v3_v3v3(), is_zero_v2(), M_PI, new_perimeter_point(), rotate_v2_v2fl(), sub_v2_v2v2(), and tPerimeterPoint::x.

Referenced by generate_perimeter_cap().

gpencil_add_material()

static Material* gpencil_add_material ( Main *  bmain, Object *  ob_gp, const char *  name, const float  color[4], const bool  use_stroke, const bool  use_fill, int *  r_idx  )

static

Definition at line 2313 of file gpencil_geom.c.

References ARRAY_SET_ITEMS, BKE_gpencil_object_material_new(), copy_v4_v4(), MaterialGPencilStyle::fill_rgba, MaterialGPencilStyle::flag, GP_MATERIAL_FILL_SHOW, GP_MATERIAL_STROKE_SHOW, Material::gp_style, and MaterialGPencilStyle::stroke_rgba.

Referenced by BKE_gpencil_convert_mesh().

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 1183 of file gpencil_geom.c.

References add_v2_v2(), Freestyle::c, center, KDL::cos(), mul_v2_fl(), KDL::sin(), bGPDstroke::totpoints, bGPDstroke::uv_rotation, bGPDstroke::uv_scale, bGPDstroke::uv_translation, x, and y.

Referenced by BKE_gpencil_stroke_fill_triangulate().

gpencil_generate_edgeloops()

static void gpencil_generate_edgeloops ( Object *  ob, bGPdata *  gpd, bGPDframe *  gpf_stroke, int  stroke_mat_index, const float  angle, const int  thickness, const float  offset, const float  matrix[4][4], const bool  use_seams  )

static

Definition at line 2175 of file gpencil_geom.c.

References add_v3_v3v3(), angle(), BKE_gpencil_stroke_add(), BKE_gpencil_stroke_geometry_update(), BLI_ghash_free(), BLI_ghash_int_new(), MVert::co, copy_v3_v3(), Object::data, e, GpEdge::flag, MEdge::flag, gpencil_walk_edge(), if(), MAX2, ME_SEAM, Mesh::medge, MEM_callocN, MEM_SAFE_FREE, mul_m4_v3(), mul_v3_v3fl(), Mesh::mvert, GpEdge::n1, GpEdge::n2, MVert::no, normal_short_to_float_v3(), NULL, bGPDstroke::points, bGPDspoint::pressure, bGPDspoint::strength, sub_v3_v3v3(), Mesh::totedge, v, GpEdge::v1, MEdge::v1, GpEdge::v1_co, GpEdge::v2, MEdge::v2, GpEdge::v2_co, GpEdge::vec, and bGPDspoint::x.

Referenced by BKE_gpencil_convert_mesh().

gpencil_material_find_index_by_name()

static int gpencil_material_find_index_by_name ( Object *  ob, const char *  name  )

static

Definition at line 2349 of file gpencil_geom.c.

References BKE_object_material_get(), Material::gp_style, Material::id, ID::name, NULL, STREQ, and Object::totcol.

Referenced by BKE_gpencil_convert_mesh().

gpencil_next_edge()

static int gpencil_next_edge ( GpEdge *  gp_edges, int  totedges, GpEdge *  gped_init, const float  threshold, const bool  reverse  )

static

Definition at line 2101 of file gpencil_geom.c.

References angle(), angle_v3v3(), GpEdge::flag, GpEdge::v1, GpEdge::v2, and GpEdge::vec.

Referenced by gpencil_walk_edge().

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 3114 of file gpencil_geom.c.

References copy_v4_v4(), bGPDstroke::dvert, MDeformVert::dw, bGPDspoint::flag, MEM_callocN, MEM_dupallocN, MEM_reallocN, NULL, 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

Definition at line 2750 of file gpencil_geom.c.

References BKE_gpencil_free_stroke(), BKE_gpencil_stroke_duplicate(), BKE_gpencil_stroke_geometry_update(), BLI_addhead(), BLI_remlink(), copy_v3_v3(), copy_v4_v4(), bGPDstroke::dvert, MDeformVert::dw, bGPDspoint::flag, bGPDstroke::flag, GP_STROKE_CYCLIC, MEM_callocN, MEM_dupallocN, NULL, bGPDstroke::points, bGPDspoint::pressure, bGPDspoint::strength, bGPDframe::strokes, bGPDspoint::time, bGPDstroke::totpoints, bGPDspoint::vert_color, and bGPDspoint::x.

Referenced by BKE_gpencil_stroke_delete_tagged_points().

gpencil_stroke_perimeter_ex()

static ListBase* gpencil_stroke_perimeter_ex ( const bGPdata *  gpd, const bGPDlayer *  gpl, const bGPDstroke *  gps, int  subdivisions, int *  r_num_perimeter_points  )

static

Calculate the perimeter (outline) of a stroke as list of tPerimeterPoint.

Parameters

subdivisions

Number of subdivisions for the start and end caps

Returns

: list of tPerimeterPoint

Definition at line 3691 of file gpencil_geom.c.

References add_v2_v2(), add_v2_v2v2(), angle(), BLI_addtail(), BLI_freelistN(), BLI_listbase_reverse(), BLI_movelisttolist(), bGPDstroke::caps, compare_v3v3(), copy_v2_v2(), copy_v3_v3(), dot_v2v2(), fabsf, ListBase::first, generate_arc_from_point_to_point(), generate_perimeter_cap(), interp_v3_v3v3(), ListBase::last, len_v2(), bGPDlayer::line_change, MEM_callocN, MEM_freeN, negate_v2(), new_perimeter_point(), next, normalize_v2(), normalize_v2_length(), NULL, bGPdata::pixfactor, bGPDstroke::points, bGPDspoint::pressure, tPerimeterPoint::prev, sub_v2_v2v2(), bGPDstroke::thickness, bGPDstroke::totpoints, tPerimeterPoint::x, and bGPDspoint::x.

Referenced by BKE_gpencil_stroke_perimeter_from_view().

gpencil_walk_edge()

static int gpencil_walk_edge ( GHash *  v_table, GpEdge *  gp_edges, int  totedges, uint *  stroke_array, int  init_idx, const float  angle, const bool  reverse  )

static

Definition at line 2132 of file gpencil_geom.c.

References angle(), BLI_ghash_haskey(), BLI_ghash_insert(), GpEdge::flag, gpencil_next_edge(), POINTER_FROM_INT, GpEdge::v1, and GpEdge::v2.

Referenced by gpencil_generate_edgeloops().

make_element_name()

static void make_element_name ( const char *  obname, const char *  name, const int  maxlen, char *  r_name  )

static

Create the name with the object name and a suffix.

Definition at line 2364 of file gpencil_geom.c.

References BLI_str_replace_char(), BLI_strncpy_utf8(), SNPRINTF, and str.

Referenced by BKE_gpencil_convert_mesh().

new_perimeter_point()

static tPerimeterPoint* new_perimeter_point ( const float  pt[3] )

static

Definition at line 3534 of file gpencil_geom.c.

References copy_v3_v3(), MEM_callocN, and tPerimeterPoint::x.

Referenced by generate_arc_from_point_to_point(), generate_perimeter_cap(), generate_semi_circle_from_point_to_point(), and gpencil_stroke_perimeter_ex().

new_sample_edge_from_sample_points()

static tSampleEdge* new_sample_edge_from_sample_points ( tSamplePoint *  from, tSamplePoint *  to  )

static

Definition at line 3335 of file gpencil_geom.c.

References tSampleEdge::from, from, len_squared_v3v3(), tSampleEdge::length_sq, MEM_callocN, tSampleEdge::to, and tSamplePoint::x.

Referenced by BKE_gpencil_stroke_uniform_subdivide().

new_sample_point_from_gp_point()

static tSamplePoint* new_sample_point_from_gp_point ( const bGPDspoint *  pt, const MDeformVert *  dvert  )

static

Definition at line 3312 of file gpencil_geom.c.

References copy_v3_v3(), copy_v4_v4(), MDeformWeight::def_nr, tSamplePoint::dw, MDeformVert::dw, MEM_callocN, NULL, tSamplePoint::pressure, bGPDspoint::pressure, tSamplePoint::strength, bGPDspoint::strength, tSamplePoint::time, bGPDspoint::time, tSamplePoint::totweight, MDeformVert::totweight, bGPDspoint::vert_color, tSamplePoint::vertex_color, MDeformWeight::weight, tSamplePoint::x, and bGPDspoint::x.

Referenced by BKE_gpencil_stroke_uniform_subdivide().

stroke_defvert_create_nr_list()

static void stroke_defvert_create_nr_list ( MDeformVert *  dv_list, int  count, ListBase *  result, int *  totweight  )

static

Definition at line 355 of file gpencil_geom.c.

References BLI_addtail(), count, LinkData::data, MDeformWeight::def_nr, MDeformVert::dw, MEM_callocN, LinkData::next, POINTER_FROM_INT, result, and MDeformVert::totweight.

Referenced by BKE_gpencil_stroke_sample().

stroke_defvert_new_count()

static MDeformVert* stroke_defvert_new_count ( int  count, int  totweight, ListBase *  def_nr_list  )

static

Definition at line 390 of file gpencil_geom.c.

References count, LinkData::data, MDeformWeight::def_nr, MDeformVert::dw, ListBase::first, MEM_mallocN, LinkData::next, POINTER_AS_INT, and MDeformVert::totweight.

Referenced by BKE_gpencil_stroke_sample().

stroke_interpolate_deform_weights()

static void stroke_interpolate_deform_weights ( bGPDstroke *  gps, int  index_from, int  index_to, float  ratio, MDeformVert *  vert  )

static

Definition at line 410 of file gpencil_geom.c.

References BKE_defvert_find_weight(), MDeformWeight::def_nr, bGPDstroke::dvert, MDeformVert::dw, interpf(), MDeformVert::totweight, and MDeformWeight::weight.

Referenced by BKE_gpencil_stroke_sample().

stroke_march_count()

static int stroke_march_count ( const bGPDstroke *  gps, const float  dist  )

static

Definition at line 334 of file gpencil_geom.c.

References copy_v3_v3(), NULL, bGPDstroke::points, stroke_march_next_point_no_interp(), and bGPDspoint::x.

Referenced by BKE_gpencil_stroke_sample().

stroke_march_next_point()

static int stroke_march_next_point ( const bGPDstroke *  gps, const int  index_next_pt, const float *  current, const float  dist, float *  result, float *  pressure, float *  strength, float *  vert_color, float *  ratio_result, int *  index_from, int *  index_to  )

static

Definition at line 213 of file gpencil_geom.c.

References copy_v3_v3(), interp_v3_v3v3(), interp_v4_v4v4(), interpf(), len_v3v3(), NULL, bGPDstroke::points, bGPDspoint::pressure, result, bGPDspoint::strength, bGPDstroke::totpoints, bGPDspoint::vert_color, and bGPDspoint::x.

Referenced by BKE_gpencil_stroke_sample().

stroke_march_next_point_no_interp()

static int stroke_march_next_point_no_interp ( const bGPDstroke *  gps, const int  index_next_pt, const float *  current, const float  dist, float *  result  )

static

Definition at line 287 of file gpencil_geom.c.

References copy_v3_v3(), interp_v3_v3v3(), len_v3v3(), NULL, bGPDstroke::points, result, bGPDstroke::totpoints, and bGPDspoint::x.

Referenced by stroke_march_count().