rotate

Documentation

Index

• type Rotate
  • func (f Rotate) Apply(repl *caddy.Replacer, img image.Image) (image.Image, error)
• type RotateFactory
  • func (ff RotateFactory) Name() string
  • func (ff RotateFactory) New(args ...string) (imagefilter.Filter, error)
  • func (ff RotateFactory) Unmarshal(data []byte) (imagefilter.Filter, error)

Types

type Rotate

type Rotate struct {
	Angle string `json:"angle,omitempty"`
}

Rotate rotates a image 90, 180 or 270 degrees counter-clockwise.

func (Rotate) Apply

func (f Rotate) Apply(repl *caddy.Replacer, img image.Image) (image.Image, error)

Apply applies the image filter to an image and returns the new image.

type RotateFactory

type RotateFactory struct{}

RotateFactory creates Rotate instances.

func (RotateFactory) Name

func (ff RotateFactory) Name() string

Name returns the name of the filter, which is also the directive used in the image filter block.

func (RotateFactory) New

func (ff RotateFactory) New(args ...string) (imagefilter.Filter, error)

New initialises and returns a configured Rotate instance.

Syntax:

rotate <angle>

Parameters:

angle is one of the following: 0, 90, 180, 270 (0 is valid, but nothing will be done to the image).

func (RotateFactory) Unmarshal

func (ff RotateFactory) Unmarshal(data []byte) (imagefilter.Filter, error)

Unmarshal decodes JSON data and returns a Rotate instance.