GEGL.Operation

This module contains the image manipulation primitives of GEGL, called Operations. Some of these have defaults, which can be invoked by calling def. Those operations with no defaults are marked accordingly.

Documentation

data Operation

Constructors

Operation

Fields

• operationName :: String
• operationParams :: [Property]

data Property

Constructors

Property

Fields

• propertyName :: String
• propertyValue :: PropertyValue

data PropertyValue

Constructors

PropertyInt Int

PropertyString String

PropertyDouble Double

PropertyColor Color

PropertyFormat PixelFormat

PropertyBuffer GeglBuffer

PropertyPointer (Ptr ())

loadOperation :: [Property] -> Operation

Simple Operation to load image files. Is agnostic to image format. This operation has no default.

cropOperation :: [Property] -> Operation

Operation for cropping a buffer.

defaultCropOperation :: Operation

textOperation :: [Property] -> Operation

Operation for rendering strings of text.

defaultTextOperation :: Operation

pngSaveOperation :: [Property] -> Operation

A PNG image saving operation.

defaultPNGSaveOperation :: Operation

checkerboardOperation :: [Property] -> Operation

Create a checkerboard pattern.

defaultCheckerboardOperation :: Operation

overOperation :: [Property] -> Operation

Layover operation.

defaultOverOperation :: Operation

bufferSourceOperation :: [Property] -> Operation

Use an existing GeglBuffer as image source. This operation has no default.

translateOperation :: [Property] -> Operation

Translate an existing buffer

data FractalType

Type for defining the fractal type in FractalExplorerOperation.

Constructors

Mandelbrot

Julia

Barnsley1

Barnsley2

Barnsley3

Spider

ManOWar

Lambda

Sierpinsky

data FractalMode

Type for defining the color mode in FractalExplorerOperation.

Constructors

Sine

Cosine

None