img

Documentation

Index

• func GetIMGdata(url, slug string) ([]byte, error)
• func GetJSON(completeURL string) (interface{}, error)
• func ImageResize(img []byte, opt Options) ([]byte, error)
• type Images
  • func GetIMG(url, slug string) Images
• type Logo
  • func (l *Logo) SetLogo(url string)
• type Options

Functions

func GetIMGdata

func GetIMGdata(url, slug string) ([]byte, error)

func GetJSON

func GetJSON(completeURL string) (interface{}, error)

GetJSON reads a JSON file and returns an map containing the parsed data

func ImageResize

func ImageResize(img []byte, opt Options) ([]byte, error)

Transform the provided image. img should contain the raw bytes of an encoded image in one of the supported formats (gif, jpeg, or png). The bytes of a similarly encoded image is returned.

Types

type Images

type Images struct {
	Img16  string `json:"img16"`
	Img32  string `json:"img32"`
	Img64  string `json:"img64"`
	Img128 string `json:"img128"`
	Img256 string `json:"img256"`
}

Images is the list of differently scaled logo images for each coin

func GetIMG

func GetIMG(url, slug string) Images

GetIMG loads a logo from the database and generates the various sized icons from it

type Logo

type Logo struct {
	Slug      string `json:"slug"`
	Extension string `json:"ext"`
	Data      string `json:"data"`
}

func (*Logo) SetLogo

func (l *Logo) SetLogo(url string)

type Options

type Options struct {
	// See ParseOptions for interpretation of Width and Height values
	Width  float64
	Height float64

	// If true, resize the image to fit in the specified dimensions.  Image
	// will not be cropped, and aspect ratio will be maintained.
	Fit bool

	// Rotate image the specified degrees counter-clockwise.  Valid values
	// are 90, 180, 270.
	Rotate int

	FlipVertical   bool
	FlipHorizontal bool

	// Quality of output image
	Quality int

	// HMAC Signature for signed requests.
	Signature string

	// Allow image to scale beyond its original dimensions.  This value
	// will always be overwritten by the value of Proxy.ScaleUp.
	ScaleUp bool

	// Desired image format. Valid values are "jpeg", "png", "tiff".
	Format string

	// Crop rectangle params
	CropX      float64
	CropY      float64
	CropWidth  float64
	CropHeight float64

	// Automatically find good crop points based on image content.
	SmartCrop bool
}

Options specifies transformations to be performed on the requested image.