blender::ed::image_trace Namespace Reference

Classes
struct	TraceParams

Enumerations
enum class	TurnPolicy : int8_t {   Foreground = 0 , Background = 1 , Left = 2 , Right = 3 ,   Minority = 4 , Majority = 5 , Random = 6 }

Functions
Bitmap *	create_bitmap (const int2 &size)
void	free_bitmap (Bitmap *bm)
template<typename ThresholdFn >
Bitmap *	image_to_bitmap (const ImBuf &ibuf, ThresholdFn fn)
ImBuf *	bitmap_to_image (const Bitmap &bm)
Trace *	trace_bitmap (const TraceParams &params, Bitmap &bm)
void	free_trace (Trace *trace)
bke::CurvesGeometry	trace_to_curves (const Trace &trace, StringRef hole_attribute_id, const float4x4 &transform)
bke::CurvesGeometry	trace_to_curves (const Trace &trace, StringRef hole_attribute_id, FunctionRef< float3(const int2 &)> pixel_to_position)

Enumeration Type Documentation

TurnPolicy

enum class blender::ed::image_trace::TurnPolicy : int8_t

strong

Enumerator
Foreground
Background
Left
Right
Minority
Majority
Random

Definition at line 48 of file grease_pencil_trace_util.hh.

Function Documentation

bitmap_to_image()

ImBuf * blender::ed::image_trace::bitmap_to_image

(

const Bitmap &

bm

)

create_bitmap()

Bitmap * blender::ed::image_trace::create_bitmap

(

const int2 &

size

)

Referenced by image_to_bitmap().

free_bitmap()

void blender::ed::image_trace::free_bitmap

(

Bitmap *

bm

)

free_trace()

void blender::ed::image_trace::free_trace

(

Trace *

trace

)

image_to_bitmap()

template<typename ThresholdFn >

Bitmap * blender::ed::image_trace::image_to_bitmap	(	const ImBuf &	ibuf,
		ThresholdFn	fn )

ThresholdFn separates foreground/background pixels by turning a color value into a bool. Must accept either a ColorGeometry4f or a ColorGeometry4b. bool fn(const ColorGeometry4f &color); bool fn(const ColorGeometry4b &color);

Definition at line 101 of file grease_pencil_trace_util.hh.

References bm, create_bitmap(), ImBufFloatBuffer::data, ImBuf::float_buffer, int, blender::threading::parallel_for(), ImBuf::x, and ImBuf::y.

trace_bitmap()

Trace * blender::ed::image_trace::trace_bitmap	(	const TraceParams &	params,
		Bitmap &	bm )

Trace boundaries in the bitmap.

trace_to_curves() [1/2]

bke::CurvesGeometry blender::ed::image_trace::trace_to_curves	(	const Trace &	trace,
		StringRef	hole_attribute_id,
		const float4x4 &	transform )

Create curves from trace data. Pixels are interpreted as (x, y, 0) coordinates and transformed.

trace_to_curves() [2/2]

bke::CurvesGeometry blender::ed::image_trace::trace_to_curves	(	const Trace &	trace,
		StringRef	hole_attribute_id,
		FunctionRef< float3(const int2 &)>	pixel_to_position )

Create curves from trace data. Pixels are transformed by the pixel_to_position function.