ledclient

func (*Canvas) At ¶

func (c *Canvas) At(x, y int) colorful.Color

func (*Canvas) PixelIndex ¶

func (c *Canvas) PixelIndex(x, y int) int

func (*Canvas) Set ¶

func (c *Canvas) Set(x, y int, col colorful.Color)

func (*Canvas) Size ¶

func (c *Canvas) Size() (int, int)

func (*Strip) BitBlit ¶

func (s *Strip) BitBlit(img *Canvas) error

BitBlit transfers image data from an object implementing the Image interface to a remote LED server.

func (*Strip) Close ¶

func (s *Strip) Close()

Close turns all LEDs black and shuts down the rendering function.

func (*Strip) Index ¶

func (s *Strip) Index(x, y int) uint32

Index returns the physical position of a single LED.

The LEDs are configured in a zig-zag pattern, as drawn below. The LED server only knows a single strand, so we must perform the positional conversion here.

START.........................
                             |
..............................
|
...........................END

func (*Strip) Loop ¶

func (s *Strip) Loop(img *Canvas, freq int)

Loop renders the LEDs periodically. This function never returns until Close() is called, so be sure to call it in a goroutine.