github.com/yukk001/go1.10.8@v0.0.0-20190813125351-6df2d3982e20/doc/progs/image_package3.go (about)

     1  // Copyright 2012 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  import (
     8  	"fmt"
     9  	"image"
    10  )
    11  
    12  func main() {
    13  	r := image.Rect(2, 1, 5, 5).Add(image.Pt(-4, -2))
    14  	fmt.Println(r.Dx(), r.Dy(), image.Pt(0, 0).In(r)) // prints 3 4 true
    15  }