Function SaveGIFImageMagick

primitive/util.go:87–109

(path string, frames []image.Image, delay, lastDelay int)

}

func SaveGIFImageMagick(path string, frames []image.Image, delay, lastDelay int) error {
	dir, err := ioutil.TempDir("", "")
	if err != nil {
		return err
	}
	for i, im := range frames {
		path := filepath.Join(dir, fmt.Sprintf("%06d.png", i))
		SavePNG(path, im)
	}
	args := []string{
		"-loop", "0",
		"-delay", fmt.Sprint(delay),
		filepath.Join(dir, "*.png"),
		"-delay", fmt.Sprint(lastDelay - delay),
		filepath.Join(dir, fmt.Sprintf("%06d.png", len(frames)-1)),
		path,
	}
	cmd := exec.Command("convert", args...)
	if err := cmd.Run(); err != nil {
		return err
	}
	return os.RemoveAll(dir)
}

func NumberString(x float64) string {
	suffixes := []string{"", "k", "M", "G"}