Function NewModel

primitive/model.go:25–55

(target image.Image, background Color, size, numWorkers int)

}

func NewModel(target image.Image, background Color, size, numWorkers int) *Model {
	w := target.Bounds().Size().X
	h := target.Bounds().Size().Y
	aspect := float64(w) / float64(h)
	var sw, sh int
	var scale float64
	if aspect >= 1 {
		sw = size
		sh = int(float64(size) / aspect)
		scale = float64(size) / float64(w)
	} else {
		sw = int(float64(size) * aspect)
		sh = size
		scale = float64(size) / float64(h)
	}

	model := &Model{}
	model.Sw = sw
	model.Sh = sh
	model.Scale = scale
	model.Background = background
	model.Target = imageToRGBA(target)
	model.Current = uniformRGBA(target.Bounds(), background.NRGBA())
	model.Score = differenceFull(model.Target, model.Current)
	model.Context = model.newContext()
	for i := 0; i < numWorkers; i++ {
		worker := NewWorker(model.Target)
		model.Workers = append(model.Workers, worker)
	}
	return model
}

func (model *Model) newContext() *gg.Context {
	dc := gg.NewContext(model.Sw, model.Sh)