zsort

Documentation

Index

• func NewLayerForScene(scene *seen.Scene) layer.Layer
• type ByZ
  • func (a ByZ) Len() int
  • func (a ByZ) Less(i, j int) bool
  • func (a ByZ) Swap(i, j int)
• type Layer
  • func (s *Layer) FlushCache()
  • func (l *Layer) RenderOn(canvas canvas.Canvas)

Functions

func NewLayerForScene

func NewLayerForScene(scene *seen.Scene) layer.Layer

Types

type ByZ

type ByZ []zfragment

ByZ implements sorting by comparing the Z of the Barycenter of the Projected points

func (ByZ) Len

func (a ByZ) Len() int

func (ByZ) Less

func (a ByZ) Less(i, j int) bool

func (ByZ) Swap

func (a ByZ) Swap(i, j int)

type Layer

type Layer struct {
	// contains filtered or unexported fields
}

Layer implements the layer.Layer interface. Layer extends seen.Scene with a function to paint the the scene on a Painter.

func (*Layer) FlushCache

func (s *Layer) FlushCache()

FlushCache removes all elements from the cache. This may be necessary if you add and remove many shapes from the scene's groups since this cache has no eviction policy.

func (*Layer) RenderOn

func (l *Layer) RenderOn(canvas canvas.Canvas)

RenderOn renders every Face in the scene's groups on the Canvas passed in as an argument. When encountering a TextShape use a TextPainter to render. When encountering any other shape assign a PathPainter to render.