Method

GeglSamplerget

Declaration [src]

void
gegl_sampler_get (
  GeglSampler* sampler,
  gdouble x,
  gdouble y,
  GeglBufferMatrix2* scale,
  void* output,
  GeglAbyssPolicy repeat_mode
)

Description [src]

Perform a sampling with the provided sampler.

Parameters

x

Type: gdouble

X coordinate to sample.

y

Type: gdouble

Y coordinate to sample.

scale

Type: GeglBufferMatrix2

Matrix representing extent of sampling area in source buffer.

The data is owned by the caller of the function.

output

Type: void*

Memory location for output data.

The argument can be NULL.

The data is owned by the caller of the function.

repeat_mode

Type: GeglAbyssPolicy

How requests outside the buffer extent are handled. Valid values: GEGL_ABYSS_NONE (abyss pixels are zeroed), GEGL_ABYSS_WHITE (abyss pixels are white), GEGL_ABYSS_BLACK (abyss pixels are black), GEGL_ABYSS_CLAMP (coordinates are clamped to the abyss rectangle), GEGL_ABYSS_LOOP (buffer contents are tiled if outside of the abyss rectangle).