package main import ( "bufio" "fmt" "image" "image/color" "image/png" "log" "math" "os" "github.com/llgcode/draw2d/draw2d" ) const ( width, height = 300, 200 ) var ( lastTime int64 folder = "../resource/result/" ) func initGc(w, h int) (image.Image, draw2d.GraphicContext) { i := image.NewRGBA(image.Rect(0, 0, w, h)) gc := draw2d.NewGraphicContext(i) gc.SetStrokeColor(image.Black) gc.SetFillColor(image.White) // fill the background //gc.Clear() return i, gc } func saveToPngFile(TestName string, m image.Image) { filePath := folder + TestName + ".png" f, err := os.Create(filePath) if err != nil { log.Println(err) os.Exit(1) } defer f.Close() b := bufio.NewWriter(f) err = png.Encode(b, m) if err != nil { log.Println(err) os.Exit(1) } err = b.Flush() if err != nil { log.Println(err) os.Exit(1) } fmt.Printf("Wrote %s OK.\n", filePath) } func gordon(gc draw2d.GraphicContext, x, y, w, h float64) { h23 := (h * 2) / 3 blf := color.RGBA{0, 0, 0, 0xff} wf := color.RGBA{0xff, 0xff, 0xff, 0xff} nf := color.RGBA{0x8B, 0x45, 0x13, 0xff} brf := color.RGBA{0x8B, 0x45, 0x13, 0x99} brb := color.RGBA{0x8B, 0x45, 0x13, 0xBB} gc.MoveTo(x, y+h) gc.CubicCurveTo(x, y+h, x+w/2, y-h, x+w, y+h) gc.Close() gc.SetFillColor(brb) gc.Fill() draw2d.RoundRect(gc, x, y+h, x+w, y+h+h, 10, 10) gc.Fill() draw2d.Circle(gc, x, y+h, w/12) // left ear gc.SetFillColor(brf) gc.Fill() draw2d.Circle(gc, x, y+h, w/12-10) gc.SetFillColor(nf) gc.Fill() draw2d.Circle(gc, x+w, y+h, w/12) // right ear gc.SetFillColor(brf) gc.Fill() draw2d.Circle(gc, x+w, y+h, w/12-10) gc.SetFillColor(nf) gc.Fill() draw2d.Circle(gc, x+w/3, y+h23, w/9) // left eye gc.SetFillColor(wf) gc.Fill() draw2d.Circle(gc, x+w/3+10, y+h23, w/10-10) gc.SetFillColor(blf) gc.Fill() draw2d.Circle(gc, x+w/3+15, y+h23, 5) gc.SetFillColor(wf) gc.Fill() draw2d.Circle(gc, x+w-w/3, y+h23, w/9) // right eye gc.Fill() draw2d.Circle(gc, x+w-w/3+10, y+h23, w/10-10) gc.SetFillColor(blf) gc.Fill() draw2d.Circle(gc, x+w-(w/3)+15, y+h23, 5) gc.SetFillColor(wf) gc.Fill() gc.SetFillColor(wf) draw2d.RoundRect(gc, x+w/2-w/8, y+h+30, x+w/2-w/8+w/8, y+h+30+w/6, 5, 5) // left tooth gc.Fill() draw2d.RoundRect(gc, x+w/2, y+h+30, x+w/2+w/8, y+h+30+w/6, 5, 5) // right tooth gc.Fill() draw2d.Ellipse(gc, x+(w/2), y+h+30, w/6, w/12) // snout gc.SetFillColor(nf) gc.Fill() draw2d.Ellipse(gc, x+(w/2), y+h+10, w/10, w/12) // nose gc.SetFillColor(blf) gc.Fill() } func main() { i, gc := initGc(width, height) gc.Clear() gc.Translate(-75, 58) gc.Rotate(-30 * (math.Pi / 180.0)) gordon(gc, 48, 48, 240, 72) saveToPngFile("TestGopher", i) }